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-rw-r--r--target/linux/etrax-2.6/patches/cris/001-include-cris.patch4551
-rw-r--r--target/linux/etrax-2.6/patches/cris/002-arch-cris.patch24914
-rw-r--r--target/linux/etrax-2.6/patches/cris/003-drivers-cris.patch22601
-rw-r--r--target/linux/etrax-2.6/patches/cris/004-kernel-Kconfig.sched.patch21
-rw-r--r--target/linux/etrax-2.6/patches/cris/005-loader.patch60
-rw-r--r--target/linux/etrax-2.6/patches/cris/006-gcc-4.patch752
-rw-r--r--target/linux/etrax-2.6/patches/cris/007-nr_free_pages.patch12
-rw-r--r--target/linux/etrax-2.6/patches/cris/008-flashmap.patch41
-rw-r--r--target/linux/etrax-2.6/patches/cris/008a-flashmap.patch33
-rw-r--r--target/linux/etrax-2.6/patches/cris/009-sysfs.patch83
-rw-r--r--target/linux/etrax-2.6/patches/cris/010-multi-target-build.patch1973
-rw-r--r--target/linux/etrax-2.6/patches/cris/011-debug-port26
-rw-r--r--target/linux/etrax-2.6/patches/cris/012-splash.patch22
-rw-r--r--target/linux/etrax-2.6/patches/cris/013-crisdriver-sysfs.patch180
-rw-r--r--target/linux/etrax-2.6/patches/cris/014-partition-tables.patch102
-rw-r--r--target/linux/etrax-2.6/patches/cris/015-samsung-flash-chip.patch13
-rw-r--r--target/linux/etrax-2.6/patches/cris/016-auto-detect-ram.patch101
17 files changed, 55485 insertions, 0 deletions
diff --git a/target/linux/etrax-2.6/patches/cris/001-include-cris.patch b/target/linux/etrax-2.6/patches/cris/001-include-cris.patch
new file mode 100644
index 0000000000..f384684414
--- /dev/null
+++ b/target/linux/etrax-2.6/patches/cris/001-include-cris.patch
@@ -0,0 +1,4551 @@
+diff -urN linux-2.6.19.2.old/include/asm-cris/Kbuild linux-2.6.19.2.dev/include/asm-cris/Kbuild
+--- linux-2.6.19.2.old/include/asm-cris/Kbuild 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/Kbuild 2007-02-09 16:51:34.000000000 +0100
+@@ -3,3 +3,6 @@
+ header-y += arch-v10/ arch-v32/
+
+ unifdef-y += rs485.h
++unifdef-y += ethernet.h
++unifdef-y += etraxgpio.h
++unifdef-y += rtc.h
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v10/Kbuild linux-2.6.19.2.dev/include/asm-cris/arch-v10/Kbuild
+--- linux-2.6.19.2.old/include/asm-cris/arch-v10/Kbuild 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v10/Kbuild 2007-02-26 21:03:05.000000000 +0100
+@@ -1,2 +1,5 @@
+ header-y += ptrace.h
+ header-y += user.h
++header-y += svinto.h
++header-y += sv_addr_ag.h
++header-y += sv_addr.agh
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v10/bug.h linux-2.6.19.2.dev/include/asm-cris/arch-v10/bug.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v10/bug.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v10/bug.h 2006-06-21 10:29:16.000000000 +0200
+@@ -0,0 +1,66 @@
++#ifndef __ASM_CRIS_ARCH_BUG_H
++#define __ASM_CRIS_ARCH_BUG_H
++
++#include <linux/stringify.h>
++
++#ifdef CONFIG_BUG
++#ifdef CONFIG_DEBUG_BUGVERBOSE
++/* The BUG() macro is used for marking obviously incorrect code paths.
++ * It will cause a message with the file name and line number to be printed,
++ * and then cause an oops. The message is actually printed by handle_BUG()
++ * in arch/cris/kernel/traps.c, and the reason we use this method of storing
++ * the file name and line number is that we do not want to affect the registers
++ * by calling printk() before causing the oops.
++ */
++
++#define BUG_PREFIX 0x0D7F
++#define BUG_MAGIC 0x00001234
++
++struct bug_frame {
++ unsigned short prefix;
++ unsigned int magic;
++ unsigned short clear;
++ unsigned short movu;
++ unsigned short line;
++ unsigned short jump;
++ unsigned char* filename;
++};
++
++#if 0
++/* Unfortunately this version of the macro does not work due to a problem
++ * with the compiler (aka a bug) when compiling with -O2, which sometimes
++ * erroneously causes the second input to be stored in a register...
++ */
++#define BUG() \
++ __asm__ __volatile__ ("clear.d [" __stringify(BUG_MAGIC) "]\n\t"\
++ "movu.w %0,$r0\n\t" \
++ "jump %1\n\t" \
++ : : "i" (__LINE__), "i" (__FILE__))
++#else
++/* This version will have to do for now, until the compiler is fixed.
++ * The drawbacks of this version are that the file name will appear multiple
++ * times in the .rodata section, and that __LINE__ and __FILE__ can probably
++ * not be used like this with newer versions of gcc.
++ */
++#define BUG() \
++ __asm__ __volatile__ ("clear.d [" __stringify(BUG_MAGIC) "]\n\t"\
++ "movu.w " __stringify(__LINE__) ",$r0\n\t"\
++ "jump 0f\n\t" \
++ ".section .rodata\n" \
++ "0:\t.string \"" __FILE__ "\"\n\t" \
++ ".previous")
++#endif
++
++#else
++
++/* This just causes an oops. */
++#define BUG() (*(int *)0 = 0)
++
++#endif
++
++#define HAVE_ARCH_BUG
++#endif
++
++#include <asm-generic/bug.h>
++
++#endif
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v10/ide.h linux-2.6.19.2.dev/include/asm-cris/arch-v10/ide.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v10/ide.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v10/ide.h 2005-08-23 11:44:36.000000000 +0200
+@@ -32,7 +32,7 @@
+ * together in a hwgroup, and will serialize accesses. this is good, because
+ * we can't access more than one interface at the same time on ETRAX100.
+ */
+- return 4;
++ return 4;
+ }
+
+ static inline unsigned long ide_default_io_base(int index)
+@@ -61,15 +61,15 @@
+ /* fill in ports for ATA addresses 0 to 7 */
+
+ for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
+- hw->io_ports[i] = data_port |
+- IO_FIELD(R_ATA_CTRL_DATA, addr, i) |
++ hw->io_ports[i] = data_port |
++ IO_FIELD(R_ATA_CTRL_DATA, addr, i) |
+ IO_STATE(R_ATA_CTRL_DATA, cs0, active);
+ }
+
+ /* the IDE control register is at ATA address 6, with CS1 active instead of CS0 */
+
+ hw->io_ports[IDE_CONTROL_OFFSET] = data_port |
+- IO_FIELD(R_ATA_CTRL_DATA, addr, 6) |
++ IO_FIELD(R_ATA_CTRL_DATA, addr, 6) |
+ IO_STATE(R_ATA_CTRL_DATA, cs1, active);
+
+ /* whats this for ? */
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v10/io.h linux-2.6.19.2.dev/include/asm-cris/arch-v10/io.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v10/io.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v10/io.h 2007-03-06 12:16:16.000000000 +0100
+@@ -56,6 +56,9 @@
+ #define LED_RED 0x02
+ #define LED_ORANGE (LED_GREEN | LED_RED)
+
++#if defined(CONFIG_ETRAX_NO_LEDS)
++#define LED_NETWORK_SET(x)
++#else
+ #if CONFIG_ETRAX_LED1G == CONFIG_ETRAX_LED1R
+ #define LED_NETWORK_SET(x) \
+ do { \
+@@ -80,6 +83,7 @@
+ LED_ACTIVE_SET_R((x) & LED_RED); \
+ } while (0)
+ #endif
++#endif
+
+ #ifdef CONFIG_ETRAX_PA_LEDS
+ #define LED_NETWORK_SET_G(x) \
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v10/juliette.h linux-2.6.19.2.dev/include/asm-cris/arch-v10/juliette.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v10/juliette.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v10/juliette.h 2004-06-03 11:28:57.000000000 +0200
+@@ -0,0 +1,328 @@
++#ifndef _ASM_JULIETTE_H
++#define _ASM_JULIETTE_H
++
++#include <asm/arch/svinto.h>
++
++/* juliette _IOC_TYPE, bits 8 to 15 in ioctl cmd */
++
++#define JULIOCTYPE 42
++
++/* supported ioctl _IOC_NR's */
++
++#define JULSTARTDMA 0x1 /* start a picture asynchronously */
++
++/* set parameters */
++
++#define SETDEFAULT 0x2 /* CCD/VIDEO/SS1M */
++#define SETPARAMETERS 0x3 /* CCD/VIDEO */
++#define SETSIZE 0x4 /* CCD/VIDEO/SS1M */
++#define SETCOMPRESSION 0x5 /* CCD/VIDEO/SS1M */
++#define SETCOLORLEVEL 0x6 /* CCD/VIDEO */
++#define SETBRIGHTNESS 0x7 /* CCD */
++#define SETROTATION 0x8 /* CCD */
++#define SETTEXT 0x9 /* CCD/VIDEO/SS1M */
++#define SETCLOCK 0xa /* CCD/VIDEO/SS1M */
++#define SETDATE 0xb /* CCD/VIDEO/SS1M */
++#define SETTIMEFORMAT 0xc /* CCD/VIDEO/SS1M */
++#define SETDATEFORMAT 0xd /* VIDEO */
++#define SETTEXTALIGNMENT 0xe /* VIDEO */
++#define SETFPS 0xf /* CCD/VIDEO/SS1M */
++#define SETVGA 0xff /* VIDEO */
++#define SETCOMMENT 0xfe /* CCD/VIDEO */
++
++/* get parameters */
++
++#define GETDRIVERTYPE 0x10 /* CCD/VIDEO/SS1M */
++#define GETNBROFCAMERAS 0x11 /* CCD/VIDEO/SS1M */
++#define GETPARAMETERS 0x12 /* CCD/VIDEO/SS1M */
++#define GETBUFFERSIZE 0x13 /* CCD/VIDEO/SS1M */
++#define GETVIDEOTYPE 0x14 /* VIDEO/SS1M */
++#define GETVIDEOSIGNAL 0x15 /* VIDEO */
++#define GETMODULATION 0x16 /* VIDEO */
++#define GETDCYVALUES 0xa0 /* CCD /SS1M */
++#define GETDCYWIDTH 0xa1 /* CCD /SS1M */
++#define GETDCYHEIGHT 0xa2 /* CCD /SS1M */
++#define GETSIZE 0xa3 /* CCD/VIDEO */
++#define GETCOMPRESSION 0xa4 /* CCD/VIDEO */
++
++/* detect and get parameters */
++
++#define DETECTMODULATION 0x17 /* VIDEO */
++#define DETECTVIDEOTYPE 0x18 /* VIDEO */
++#define DETECTVIDEOSIGNAL 0x19 /* VIDEO */
++
++/* configure default parameters */
++
++#define CONFIGUREDEFAULT 0x20 /* CCD/VIDEO/SS1M */
++#define DEFSIZE 0x21 /* CCD/VIDEO/SS1M */
++#define DEFCOMPRESSION 0x22 /* CCD/VIDEO/SS1M */
++#define DEFCOLORLEVEL 0x23 /* CCD/VIDEO */
++#define DEFBRIGHTNESS 0x24 /* CCD */
++#define DEFROTATION 0x25 /* CCD */
++#define DEFWHITEBALANCE 0x26 /* CCD */
++#define DEFEXPOSURE 0x27 /* CCD */
++#define DEFAUTOEXPWINDOW 0x28 /* CCD */
++#define DEFTEXT 0x29 /* CCD/VIDEO/SS1M */
++#define DEFCLOCK 0x2a /* CCD/VIDEO/SS1M */
++#define DEFDATE 0x2b /* CCD/VIDEO/SS1M */
++#define DEFTIMEFORMAT 0x2c /* CCD/VIDEO/SS1M */
++#define DEFDATEFORMAT 0x2d /* VIDEO */
++#define DEFTEXTALIGNMENT 0x2e /* VIDEO */
++#define DEFFPS 0x2f /* CCD/VIDEO/SS1M */
++#define DEFTEXTSTRING 0x30 /* CCD/VIDEO/SS1M */
++#define DEFHEADERINFO 0x31 /* CCD/VIDEO/SS1M */
++#define DEFWEXAR 0x32 /* CCD */
++#define DEFLINEDELAY 0x33 /* CCD */
++#define DEFDISABLEDVIDEO 0x34 /* VIDEO */
++#define DEFVIDEOTYPE 0x35 /* VIDEO */
++#define DEFMODULATION 0x36 /* VIDEO */
++#define DEFXOFFSET 0x37 /* VIDEO */
++#define DEFYOFFSET 0x38 /* VIDEO */
++#define DEFYCMODE 0x39 /* VIDEO */
++#define DEFVCRMODE 0x3a /* VIDEO */
++#define DEFSTOREDCYVALUES 0x3b /* CCD/VIDEO/SS1M */
++#define DEFWCDS 0x3c /* CCD */
++#define DEFVGA 0x3d /* VIDEO */
++#define DEFCOMMENT 0x3e /* CCD/VIDEO */
++#define DEFCOMMENTSIZE 0x3f /* CCD/VIDEO */
++#define DEFCOMMENTTEXT 0x50 /* CCD/VIDEO */
++#define DEFSTOREDCYTEXT 0x51 /* VIDEO */
++
++
++#define JULABORTDMA 0x70 /* Abort current DMA transfer */
++
++/* juliette general i/o port */
++
++#define JIO_READBITS 0x40 /* read and return current port bits */
++#define JIO_SETBITS 0x41 /* set bits marked by 1 in the argument */
++#define JIO_CLRBITS 0x42 /* clr bits marked by 1 in the argument */
++#define JIO_READDIR 0x43 /* read direction, 0=input 1=output */
++#define JIO_SETINPUT 0x44 /* set direction, 0=unchanged 1=input
++ returns current dir */
++#define JIO_SETOUTPUT 0x45 /* set direction, 0=unchanged 1=output
++ returns current dir */
++
++/**** YumYum internal adresses ****/
++
++/* Juliette buffer addresses */
++
++#define BUFFER1_VIDEO 0x1100
++#define BUFFER2_VIDEO 0x2800
++#define ACDC_BUFF_VIDEO 0x0aaa
++#define BUFFER1 0x1700
++#define BUFFER2 0x2b01
++#define ACDC_BUFFER 0x1200
++#define BUFFER1_SS1M 0x1100
++#define BUFFER2_SS1M 0x2800
++#define ACDC_BUFF_SS1M 0x0900
++
++/* Juliette parameter memory addresses */
++
++#define PA_BUFFER_CNT 0x3f09 /* CCD/VIDEO */
++#define PA_CCD_BUFFER 0x3f10 /* CCD */
++#define PA_VIDEO_BUFFER 0x3f10 /* VIDEO */
++#define PA_DCT_BUFFER 0x3f11 /* CCD/VIDEO */
++#define PA_TEMP 0x3f12 /* CCD/VIDEO */
++#define PA_VIDEOLINE_RD 0x3f13 /* VIDEO */
++#define PA_VIDEOLINE_WR 0x3f14 /* VIDEO */
++#define PA_VI_HDELAY0 0x3f15 /* VIDEO */
++#define PA_VI_VDELAY0 0x3f16 /* VIDEO */
++#define PA_VI_HDELAY1 0x3f17 /* VIDEO */
++#define PA_VI_VDELAY1 0x3f18 /* VIDEO */
++#define PA_VI_HDELAY2 0x3f19 /* VIDEO */
++#define PA_VI_VDELAY2 0x3f1a /* VIDEO */
++#define PA_VI_HDELAY3 0x3f1b /* VIDEO */
++#define PA_VI_VDELAY3 0x3f1c /* VIDEO */
++#define PA_VI_CTRL 0x3f20 /* VIDEO */
++#define PA_JPEG_CTRL 0x3f22 /* CCD/VIDEO */
++#define PA_BUFFER_SIZE 0x3f24 /* CCD/VIDEO */
++#define PA_PAL_NTSC 0x3f25 /* VIDEO */
++#define PA_MACROBLOCKS 0x3f26 /* CCD/VIDEO */
++#define PA_COLOR 0x3f27 /* VIDEO */
++#define PA_MEMCH1CNT2 0x3f28 /* CCD/VIDEO */
++#define PA_MEMCH1CNT3 0x3f29 /* VIDEO */
++#define PA_MEMCH1STR2 0x3f2a /* CCD/VIDEO */
++#define PA_MEMCH1STR3 0x3f2b /* VIDEO */
++#define PA_BUFFERS 0x3f2c /* CCD/VIDEO */
++#define PA_PROGRAM 0x3f2d /* CCD/VIDEO */
++#define PA_ROTATION 0x3f2e /* CCD */
++#define PA_PC 0x3f30 /* CCD/VIDEO */
++#define PA_PC2 0x3f31 /* VIDEO */
++#define PA_ODD_LINE 0x3f32 /* VIDEO */
++#define PA_EXP_DELAY 0x3f34 /* CCD */
++#define PA_MACROBLOCK_CNT 0x3f35 /* CCD/VIDEO */
++#define PA_DRAM_PTR1_L 0x3f36 /* CCD/VIDEO */
++#define PA_CLPOB_CNT 0x3f37 /* CCD */
++#define PA_DRAM_PTR1_H 0x3f38 /* CCD/VIDEO */
++#define PA_DRAM_PTR2_L 0x3f3a /* VIDEO */
++#define PA_DRAM_PTR2_H 0x3f3c /* VIDEO */
++#define PA_CCD_LINE_CNT 0x3f3f /* CCD */
++#define PA_VIDEO_LINE_CNT 0x3f3f /* VIDEO */
++#define PA_TEXT 0x3f41 /* CCD/VIDEO */
++#define PA_CAMERA_CHANGED 0x3f42 /* VIDEO */
++#define PA_TEXTALIGNMENT 0x3f43 /* VIDEO */
++#define PA_DISABLED 0x3f44 /* VIDEO */
++#define PA_MACROBLOCKTEXT 0x3f45 /* VIDEO */
++#define PA_VGA 0x3f46 /* VIDEO */
++#define PA_ZERO 0x3ffe /* VIDEO */
++#define PA_NULL 0x3fff /* CCD/VIDEO */
++
++typedef enum {
++ jpeg = 0,
++ dummy = 1
++} request_type;
++
++typedef enum {
++ hugesize = 0,
++ fullsize = 1,
++ halfsize = 2,
++ fieldsize = 3
++} size_type;
++
++typedef enum {
++ min = 0,
++ low = 1,
++ medium = 2,
++ high = 3,
++ very_high = 4,
++ very_low = 5,
++ q1 = 6,
++ q2 = 7,
++ q3 = 8,
++ q4 = 9,
++ q5 = 10,
++ q6 = 11
++} compr_type;
++
++typedef enum {
++ deg_0 = 0,
++ deg_180 = 1,
++ deg_90 = 2,
++ deg_270 = 3
++} rotation_type;
++
++typedef enum {
++ auto_white = 0,
++ hold = 1,
++ fixed_outdoor = 2,
++ fixed_indoor = 3,
++ fixed_fluor = 4
++} white_balance_type;
++
++typedef enum {
++ auto_exp = 0,
++ fixed_exp = 1
++} exposure_type;
++
++typedef enum {
++ no_window = 0,
++ center = 1,
++ top = 2,
++ lower = 3,
++ left = 4,
++ right = 5,
++ spot = 6,
++ cw = 7
++} exp_window_type;
++
++typedef enum {
++ h_24 = 0,
++ h_12 = 1,
++ h_24P = 2
++} hour_type;
++
++typedef enum {
++ standard = 0,
++ YYYY_MM_DD = 1,
++ Www_Mmm_DD_YYYY = 2,
++ Www_DD_MM_YYYY = 3
++} date_type;
++
++typedef enum {
++ left_align = 0,
++ center_align = 1,
++ right_align = 2
++} alignment_type;
++
++typedef enum {
++ off = 0,
++ on = 1,
++ no = 0,
++ yes = 1
++} enable_type;
++
++typedef enum {
++ disabled = 0,
++ enabled = 1,
++ extended = 2
++} comment_type;
++
++typedef enum {
++ pal = 0,
++ ntsc = 1
++} video_type;
++
++typedef enum {
++ pal_bghi_ntsc_m = 0,
++ ntsc_4_43_50hz_pal_4_43_60hz = 1,
++ pal_n_ntsc_4_43_60hz = 2,
++ ntsc_n_pal_m = 3,
++ secam_pal_4_43_60hz = 4
++} modulation_type;
++
++typedef enum {
++ cam0 = 0,
++ cam1 = 1,
++ cam2 = 2,
++ cam3 = 3,
++ quad = 32
++} camera_type;
++
++typedef enum {
++ video_driver = 0,
++ ccd_driver = 1
++} driver_type;
++
++struct jul_param {
++ request_type req_type;
++ size_type size;
++ compr_type compression;
++ rotation_type rotation;
++ int color_level;
++ int brightness;
++ white_balance_type white_balance;
++ exposure_type exposure;
++ exp_window_type auto_exp_window;
++ hour_type time_format;
++ date_type date_format;
++ alignment_type text_alignment;
++ enable_type text;
++ enable_type clock;
++ enable_type date;
++ enable_type fps;
++ enable_type vga;
++ enable_type comment;
++};
++
++struct video_param {
++ enable_type disabled;
++ modulation_type modulation;
++ video_type video;
++ enable_type signal;
++ enable_type vcr;
++ int xoffset;
++ int yoffset;
++};
++
++/* The juliette_request structure is used during the JULSTARTDMA asynchronous
++ * picture-taking ioctl call as an argument to specify a buffer which will get
++ * the final picture.
++ */
++
++struct juliette_request {
++ char *buf; /* Pointer to the buffer to hold picture data */
++ unsigned int buflen; /* Length of the above buffer */
++ unsigned int size; /* Resulting length, 0 if the picture is not ready */
++};
++
++#endif
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/Kbuild linux-2.6.19.2.dev/include/asm-cris/arch-v32/Kbuild
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/Kbuild 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/Kbuild 2007-02-09 16:51:34.000000000 +0100
+@@ -1,2 +1,3 @@
+ header-y += ptrace.h
+ header-y += user.h
++header-y += cryptocop.h
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/arbiter.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/arbiter.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/arbiter.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/arbiter.h 2006-10-13 14:45:18.000000000 +0200
+@@ -22,6 +22,7 @@
+
+ int crisv32_arbiter_allocate_bandwidth(int client, int region,
+ unsigned long bandwidth);
++void crisv32_arbiter_deallocate_bandwidth(int client, int region);
+ int crisv32_arbiter_watch(unsigned long start, unsigned long size,
+ unsigned long clients, unsigned long accesses,
+ watch_callback* cb);
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/bitops.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/bitops.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/bitops.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/bitops.h 2005-08-23 11:44:37.000000000 +0200
+@@ -16,7 +16,7 @@
+ __asm__ __volatile__ ("swapnwbr %0\n\t"
+ "lz %0,%0"
+ : "=r" (res) : "0" (w));
+-
++
+ return res;
+ }
+
+@@ -28,7 +28,7 @@
+ __asm__ __volatile__ ("swapwbr %0\n\t"
+ "lz %0,%0"
+ : "=r" (res) : "0" (w));
+-
++
+ return res;
+ }
+
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/board.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/board.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/board.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/board.h 2007-01-29 15:05:01.000000000 +0100
+@@ -0,0 +1,74 @@
++/*
++ * linux/include/asm-cris/arch-v32/board.h
++ *
++ * Types for board-specific data.
++ *
++ * Copyright (C) 2007 Axis Communications AB
++ */
++
++#ifndef __ARCH_V32_BOARD_H
++#define __ARCH_V32_BOARD_H
++
++/* A tuple for a regi base and an interrupt. */
++struct crisv32_regi_n_int {
++ u32 regi;
++ u32 irq;
++};
++
++/*
++ * SPI and SD/MMC types, arranged such that the data for mmc_spi is an
++ * add-on to SPI; the SPI data does not contain anything about SD/MMC
++ * and the SPI controller driver can't access it. SPI data is
++ * arranged to allow sharing common functions between SSER and GPIO.
++ */
++
++/* Hardware identification for the bitbanged GPIO SPI controller. */
++struct crisv32_spi_gpio_controller_data {
++ /* Names of the pins. */
++ const char *cs;
++ const char *miso;
++ const char *mosi;
++ const char *sclk;
++};
++
++/* Similar for the SSER SPI controller. */
++struct crisv32_spi_sser_controller_data {
++ /* How to connect pins and claim the SSER interface and the DMA
++ channels. */
++ int (*iface_allocate)(struct crisv32_regi_n_int *sser,
++ struct crisv32_regi_n_int *dmain,
++ struct crisv32_regi_n_int *dmaout);
++ void (*iface_free)(void);
++
++ /* Whether DMA is to be used. */
++ int using_dma;
++};
++
++struct crisv32_mmc_spi_pinstate;
++
++/*
++ * Regardless of SPI controller, these pins are needed in addition to
++ * the SPI pins when the used as a SD/MMC SPI controller.
++ */
++struct crisv32_mmc_spi_pindata {
++ /* Names of the pins. */
++ const char *card_detect;
++ const char *write_protect;
++
++ /* Related private state to interface to the mmc_spi API. */
++ struct crisv32_mmc_spi_pinstate *pinstate;
++};
++
++/* When SD/MMC SPI on GPIO, here's all the hardware-identifying data. */
++struct crisv32_mmc_spi_gpio_hwdata {
++ struct crisv32_spi_gpio_controller_data spi;
++ struct crisv32_mmc_spi_pindata mmc;
++};
++
++/* Similar for SSER. */
++struct crisv32_mmc_spi_sser_hwdata {
++ struct crisv32_spi_sser_controller_data spi;
++ struct crisv32_mmc_spi_pindata mmc;
++};
++
++#endif /* __ARCH_V32_BOARD_H */
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/bug.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/bug.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/bug.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/bug.h 2006-06-21 10:29:16.000000000 +0200
+@@ -0,0 +1,69 @@
++#ifndef __ASM_CRIS_ARCH_BUG_H
++#define __ASM_CRIS_ARCH_BUG_H
++
++#include <linux/stringify.h>
++
++#ifdef CONFIG_BUG
++#ifdef CONFIG_DEBUG_BUGVERBOSE
++/* The BUG() macro is used for marking obviously incorrect code paths.
++ * It will cause a message with the file name and line number to be printed,
++ * and then cause an oops. The message is actually printed by handle_BUG()
++ * in arch/cris/kernel/traps.c, and the reason we use this method of storing
++ * the file name and line number is that we do not want to affect the registers
++ * by calling printk() before causing the oops (this is not entirely true
++ * for CRISv32 since we need to modify the $acr register).
++ */
++
++#define BUG_PREFIX 0xFE6F
++#define BUG_MAGIC 0x00001234
++
++struct bug_frame {
++ unsigned short prefix;
++ unsigned int magic;
++ unsigned short clear;
++ unsigned short movu;
++ unsigned short line;
++ unsigned short jump;
++ unsigned char* filename;
++};
++
++#if 0
++/* Unfortunately this version of the macro does not work due to a problem
++ * with the compiler (aka a bug) when compiling with -O2, which sometimes
++ * erroneously causes the second input to be stored in a register...
++ */
++#define BUG() \
++ __asm__ __volatile__ ("move.d [" __stringify(BUG_MAGIC) "],$acr\n\t"\
++ "clear.d [$acr]\n\t" \
++ "movu.w %0,$r0\n\t" \
++ "jump %1\n\t" \
++ : : "i" (__LINE__), "i" (__FILE__))
++#else
++/* This version will have to do for now, until the compiler is fixed.
++ * The drawbacks of this version are that the file name will appear multiple
++ * times in the .rodata section, and that __LINE__ and __FILE__ can probably
++ * not be used like this with newer versions of gcc.
++ */
++#define BUG() \
++ __asm__ __volatile__ ("move.d " __stringify(BUG_MAGIC) ",$acr\n\t"\
++ "clear.d [$acr]\n\t" \
++ "movu.w " __stringify(__LINE__) ",$r0\n\t"\
++ "jump 0f\n\t" \
++ ".section .rodata\n" \
++ "0:\t.string \"" __FILE__ "\"\n\t" \
++ ".previous")
++#endif
++
++#else
++
++/* This just causes an oops. */
++#define BUG() (*(int *)0 = 0)
++
++#endif
++
++#define HAVE_ARCH_BUG
++#endif
++
++#include <asm-generic/bug.h>
++
++#endif
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/cache.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/cache.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/cache.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/cache.h 2007-01-05 09:59:53.000000000 +0100
+@@ -1,8 +1,19 @@
+ #ifndef _ASM_CRIS_ARCH_CACHE_H
+ #define _ASM_CRIS_ARCH_CACHE_H
+
++#include <asm/arch/hwregs/dma.h>
++
+ /* A cache-line is 32 bytes. */
+ #define L1_CACHE_BYTES 32
+ #define L1_CACHE_SHIFT 5
+
++void flush_dma_list(dma_descr_data* descr);
++void flush_dma_descr(dma_descr_data* descr, int flush_buf);
++
++#define flush_dma_context(c) \
++ flush_dma_list(phys_to_virt((c)->saved_data));
++
++void cris_flush_cache_range(void* buf, unsigned long len);
++void cris_flush_cache(void);
++
+ #endif /* _ASM_CRIS_ARCH_CACHE_H */
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/cryptocop.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/cryptocop.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/cryptocop.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/cryptocop.h 2005-04-20 14:33:25.000000000 +0200
+@@ -160,7 +160,7 @@
+ cryptocop_source_dma = 0,
+ cryptocop_source_des,
+ cryptocop_source_3des,
+- cryptocop_source_aes,
++ cryptocop_source_aes,
+ cryptocop_source_md5,
+ cryptocop_source_sha1,
+ cryptocop_source_csum,
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/delay.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/delay.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/delay.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/delay.h 2006-10-11 19:46:19.000000000 +0200
+@@ -1,6 +1,16 @@
+ #ifndef _ASM_CRIS_ARCH_DELAY_H
+ #define _ASM_CRIS_ARCH_DELAY_H
+
++extern void cris_delay10ns(u32 n10ns);
++#define udelay(u) cris_delay10ns((u)*100)
++#define ndelay(n) cris_delay10ns(((n)+9)/10)
++
++/*
++ * Not used anymore for udelay or ndelay. Referenced by
++ * e.g. init/calibrate.c. All other references are likely bugs;
++ * should be replaced by mdelay, udelay or ndelay.
++ */
++
+ static inline void
+ __delay(int loops)
+ {
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/dma.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/dma.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/dma.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/dma.h 2005-05-02 12:43:02.000000000 +0200
+@@ -67,7 +67,7 @@
+ dma_ext3
+ };
+
+-int crisv32_request_dma(unsigned int dmanr, const char * device_id,
++int crisv32_request_dma(unsigned int dmanr, const char * device_id,
+ unsigned options, unsigned bandwidth, enum dma_owner owner);
+ void crisv32_free_dma(unsigned int dmanr);
+
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/Makefile linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/Makefile
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/Makefile 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/Makefile 2004-01-07 22:16:18.000000000 +0100
+@@ -126,9 +126,9 @@
+
+ # From /n/asic/projects/guinness/design/
+ reg_map.h: $(DESIGNDIR)/top/rtl/global.rmap $(DESIGNDIR)/top/mod/modreg.rmap
+- $(RDES2C) -base 0xb0000000 $^
++ $(RDES2C) -base 0xb0000000 $^
+ reg_map_asm.h: $(DESIGNDIR)/top/rtl/global.rmap $(DESIGNDIR)/top/mod/modreg.rmap
+- $(RDES2C) -base 0xb0000000 -asm -outfile $@ $^
++ $(RDES2C) -base 0xb0000000 -asm -outfile $@ $^
+
+ reg_rdwr.h: $(DESIGNDIR)/top/sw/include/reg_rdwr.h
+ cat $< | sed -e 's/\$$Id\:/id\:/g' >$@
+@@ -171,14 +171,14 @@
+ done
+
+ .PHONY: axw
+-## %.axw - Generate the specified .axw file (doesn't work for all files
++## %.axw - Generate the specified .axw file (doesn't work for all files
+ ## due to inconsistent naming ir .r files.
+ %.axw: axw
+ @for RDES in $(REGDESC); do \
+ if echo "$$RDES" | grep $* ; then \
+ $(RDES2TXT) $$RDES; \
+ fi \
+- done
++ done
+
+ .PHONY: clean
+ ## clean - Remove .h files and .axw files.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/ata_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/ata_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/ata_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/ata_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/ata/rtl/ata_regs.r
+- * id: ata_regs.r,v 1.11 2005/02/09 08:27:36 kriskn Exp
++ * id: ata_regs.r,v 1.11 2005/02/09 08:27:36 kriskn Exp
+ * last modfied: Mon Apr 11 16:06:25 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/ata_defs_asm.h ../../inst/ata/rtl/ata_regs.r
+ * id: $Id: ata_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/bif_core_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/bif_core_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/bif_core_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/bif_core_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/bif/rtl/bif_core_regs.r
+- * id: bif_core_regs.r,v 1.17 2005/02/04 13:28:22 np Exp
++ * id: bif_core_regs.r,v 1.17 2005/02/04 13:28:22 np Exp
+ * last modfied: Mon Apr 11 16:06:33 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/bif_core_defs_asm.h ../../inst/bif/rtl/bif_core_regs.r
+ * id: $Id: bif_core_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/bif_dma_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/bif_dma_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/bif_dma_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/bif_dma_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/bif/rtl/bif_dma_regs.r
+- * id: bif_dma_regs.r,v 1.6 2005/02/04 13:28:31 perz Exp
++ * id: bif_dma_regs.r,v 1.6 2005/02/04 13:28:31 perz Exp
+ * last modfied: Mon Apr 11 16:06:33 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/bif_dma_defs_asm.h ../../inst/bif/rtl/bif_dma_regs.r
+ * id: $Id: bif_dma_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/bif_slave_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/bif_slave_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/bif_slave_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/bif_slave_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/bif/rtl/bif_slave_regs.r
+- * id: bif_slave_regs.r,v 1.5 2005/02/04 13:55:28 perz Exp
++ * id: bif_slave_regs.r,v 1.5 2005/02/04 13:55:28 perz Exp
+ * last modfied: Mon Apr 11 16:06:34 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/bif_slave_defs_asm.h ../../inst/bif/rtl/bif_slave_regs.r
+ * id: $Id: bif_slave_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/config_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/config_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/config_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/config_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../rtl/config_regs.r
+- * id: config_regs.r,v 1.23 2004/03/04 11:34:42 mikaeln Exp
++ * id: config_regs.r,v 1.23 2004/03/04 11:34:42 mikaeln Exp
+ * last modfied: Thu Mar 4 12:34:39 2004
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/config_defs_asm.h ../../rtl/config_regs.r
+ * id: $Id: config_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/cpu_vect.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/cpu_vect.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/cpu_vect.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/cpu_vect.h 2005-04-24 20:31:04.000000000 +0200
+@@ -3,7 +3,7 @@
+ version . */
+
+ #ifndef _______INST_CRISP_DOC_CPU_VECT_R
+-#define _______INST_CRISP_DOC_CPU_VECT_R
++#define _______INST_CRISP_DOC_CPU_VECT_R
+ #define NMI_INTR_VECT 0x00
+ #define RESERVED_1_INTR_VECT 0x01
+ #define RESERVED_2_INTR_VECT 0x02
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/cris_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/cris_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/cris_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/cris_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/crisp/doc/cris.r
+- * id: cris.r,v 1.6 2004/05/05 07:41:12 perz Exp
++ * id: cris.r,v 1.6 2004/05/05 07:41:12 perz Exp
+ * last modfied: Mon Apr 11 16:06:39 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/cris_defs_asm.h ../../inst/crisp/doc/cris.r
+ * id: $Id: cris_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/dma_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/dma_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/dma_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/dma_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/dma/inst/dma_common/rtl/dma_regdes.r
+- * id: dma_regdes.r,v 1.39 2005/02/10 14:07:23 janb Exp
++ * id: dma_regdes.r,v 1.39 2005/02/10 14:07:23 janb Exp
+ * last modfied: Mon Apr 11 16:06:51 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/dma_defs_asm.h ../../inst/dma/inst/dma_common/rtl/dma_regdes.r
+ * id: $Id: dma_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/eth_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/eth_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/eth_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/eth_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/eth/rtl/eth_regs.r
+- * id: eth_regs.r,v 1.11 2005/02/09 10:48:38 kriskn Exp
++ * id: eth_regs.r,v 1.11 2005/02/09 10:48:38 kriskn Exp
+ * last modfied: Mon Apr 11 16:07:03 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/eth_defs_asm.h ../../inst/eth/rtl/eth_regs.r
+ * id: $Id: eth_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/gio_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/gio_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/gio_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/gio_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/gio/rtl/gio_regs.r
+- * id: gio_regs.r,v 1.5 2005/02/04 09:43:21 perz Exp
++ * id: gio_regs.r,v 1.5 2005/02/04 09:43:21 perz Exp
+ * last modfied: Mon Apr 11 16:07:47 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/gio_defs_asm.h ../../inst/gio/rtl/gio_regs.r
+ * id: $Id: gio_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/intr_vect.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/intr_vect.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/intr_vect.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/intr_vect.h 2005-04-24 20:31:04.000000000 +0200
+@@ -3,7 +3,7 @@
+ version . */
+
+ #ifndef _______INST_INTR_VECT_RTL_GUINNESS_IVMASK_CONFIG_R
+-#define _______INST_INTR_VECT_RTL_GUINNESS_IVMASK_CONFIG_R
++#define _______INST_INTR_VECT_RTL_GUINNESS_IVMASK_CONFIG_R
+ #define MEMARB_INTR_VECT 0x31
+ #define GEN_IO_INTR_VECT 0x32
+ #define IOP0_INTR_VECT 0x33
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/intr_vect_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/intr_vect_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/intr_vect_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/intr_vect_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/intr_vect/rtl/guinness/ivmask.config.r
+- * id: ivmask.config.r,v 1.4 2005/02/15 16:05:38 stefans Exp
++ * id: ivmask.config.r,v 1.4 2005/02/15 16:05:38 stefans Exp
+ * last modfied: Mon Apr 11 16:08:03 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/intr_vect_defs_asm.h ../../inst/intr_vect/rtl/guinness/ivmask.config.r
+ * id: $Id: intr_vect_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/irq_nmi_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/irq_nmi_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/irq_nmi_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/irq_nmi_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../mod/irq_nmi.r
+ * id: <not found>
+ * last modfied: Thu Jan 22 09:22:43 2004
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/irq_nmi_defs_asm.h ../../mod/irq_nmi.r
+ * id: $Id: irq_nmi_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/marb_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/marb_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/marb_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/marb_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/memarb/rtl/guinness/marb_top.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:12:16 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/marb_defs_asm.h ../../inst/memarb/rtl/guinness/marb_top.r
+ * id: $Id: marb_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+@@ -313,7 +313,7 @@
+ * file: ../../inst/memarb/rtl/guinness/marb_top.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:12:16 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/marb_defs_asm.h ../../inst/memarb/rtl/guinness/marb_top.r
+ * id: $Id: marb_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/mmu_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/mmu_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/mmu_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/mmu_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/mmu/doc/mmu_regs.r
+- * id: mmu_regs.r,v 1.12 2004/05/06 13:48:45 mikaeln Exp
++ * id: mmu_regs.r,v 1.12 2004/05/06 13:48:45 mikaeln Exp
+ * last modfied: Mon Apr 11 17:03:20 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/mmu_defs_asm.h ../../inst/mmu/doc/mmu_regs.r
+ * id: $Id: mmu_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/pinmux_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/pinmux_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/pinmux_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/pinmux_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/pinmux/rtl/guinness/pinmux_regs.r
+- * id: pinmux_regs.r,v 1.40 2005/02/09 16:22:59 perz Exp
++ * id: pinmux_regs.r,v 1.40 2005/02/09 16:22:59 perz Exp
+ * last modfied: Mon Apr 11 16:09:11 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/pinmux_defs_asm.h ../../inst/pinmux/rtl/guinness/pinmux_regs.r
+ * id: $Id: pinmux_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/reg_map_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/reg_map_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/reg_map_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/reg_map_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -4,17 +4,17 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../mod/fakereg.rmap
+- * id: fakereg.rmap,v 1.3 2004/02/11 19:53:22 ronny Exp
++ * id: fakereg.rmap,v 1.3 2004/02/11 19:53:22 ronny Exp
+ * last modified: Wed Feb 11 20:53:25 2004
+ * file: ../../rtl/global.rmap
+- * id: global.rmap,v 1.3 2003/08/18 15:08:23 mikaeln Exp
++ * id: global.rmap,v 1.3 2003/08/18 15:08:23 mikaeln Exp
+ * last modified: Mon Aug 18 17:08:23 2003
+ * file: ../../mod/modreg.rmap
+- * id: modreg.rmap,v 1.31 2004/02/20 15:40:04 stefans Exp
++ * id: modreg.rmap,v 1.31 2004/02/20 15:40:04 stefans Exp
+ * last modified: Fri Feb 20 16:40:04 2004
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/reg_map_asm.h -base 0xb0000000 ../../rtl/global.rmap ../../mod/modreg.rmap ../../inst/memarb/rtl/guinness/marb_top.r ../../mod/fakereg.rmap
+- * id: $Id: reg_map_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
++ * id: $Id: reg_map_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+ *
+ * -*- buffer-read-only: t -*-
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/rt_trace_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/rt_trace_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/rt_trace_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/rt_trace_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/rt_trace/rtl/rt_regs.r
+- * id: rt_regs.r,v 1.18 2005/02/08 15:45:00 stefans Exp
++ * id: rt_regs.r,v 1.18 2005/02/08 15:45:00 stefans Exp
+ * last modfied: Mon Apr 11 16:09:14 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/rt_trace_defs_asm.h ../../inst/rt_trace/rtl/rt_regs.r
+ * id: $Id: rt_trace_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/ser_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/ser_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/ser_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/ser_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/ser/rtl/ser_regs.r
+- * id: ser_regs.r,v 1.23 2005/02/08 13:58:35 perz Exp
++ * id: ser_regs.r,v 1.23 2005/02/08 13:58:35 perz Exp
+ * last modfied: Mon Apr 11 16:09:21 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/ser_defs_asm.h ../../inst/ser/rtl/ser_regs.r
+ * id: $Id: ser_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/sser_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/sser_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/sser_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/sser_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/syncser/rtl/sser_regs.r
+- * id: sser_regs.r,v 1.24 2005/02/11 14:27:36 gunnard Exp
++ * id: sser_regs.r,v 1.24 2005/02/11 14:27:36 gunnard Exp
+ * last modfied: Mon Apr 11 16:09:48 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/sser_defs_asm.h ../../inst/syncser/rtl/sser_regs.r
+ * id: $Id: sser_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/strcop_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/strcop_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/strcop_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/strcop_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/strcop/rtl/strcop_regs.r
+- * id: strcop_regs.r,v 1.5 2003/10/15 12:09:45 kriskn Exp
++ * id: strcop_regs.r,v 1.5 2003/10/15 12:09:45 kriskn Exp
+ * last modfied: Mon Apr 11 16:09:38 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/strcop_defs_asm.h ../../inst/strcop/rtl/strcop_regs.r
+ * id: $Id: strcop_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/strmux_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/strmux_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/strmux_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/strmux_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/strmux/rtl/guinness/strmux_regs.r
+- * id: strmux_regs.r,v 1.10 2005/02/10 10:10:46 perz Exp
++ * id: strmux_regs.r,v 1.10 2005/02/10 10:10:46 perz Exp
+ * last modfied: Mon Apr 11 16:09:43 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/strmux_defs_asm.h ../../inst/strmux/rtl/guinness/strmux_regs.r
+ * id: $Id: strmux_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/timer_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/timer_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/asm/timer_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/asm/timer_defs_asm.h 2005-04-24 20:31:04.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/timer/rtl/timer_regs.r
+- * id: timer_regs.r,v 1.7 2003/03/11 11:16:59 perz Exp
++ * id: timer_regs.r,v 1.7 2003/03/11 11:16:59 perz Exp
+ * last modfied: Mon Apr 11 16:09:53 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/timer_defs_asm.h ../../inst/timer/rtl/timer_regs.r
+ * id: $Id: timer_defs_asm.h,v 1.1 2005/04/24 18:31:04 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/ata_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/ata_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/ata_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/ata_defs.h 2005-04-24 20:30:58.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/ata/rtl/ata_regs.r
+- * id: ata_regs.r,v 1.11 2005/02/09 08:27:36 kriskn Exp
++ * id: ata_regs.r,v 1.11 2005/02/09 08:27:36 kriskn Exp
+ * last modfied: Mon Apr 11 16:06:25 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile ata_defs.h ../../inst/ata/rtl/ata_regs.r
+ * id: $Id: ata_defs.h,v 1.7 2005/04/24 18:30:58 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/bif_core_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/bif_core_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/bif_core_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/bif_core_defs.h 2005-04-24 20:30:58.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/bif/rtl/bif_core_regs.r
+- * id: bif_core_regs.r,v 1.17 2005/02/04 13:28:22 np Exp
++ * id: bif_core_regs.r,v 1.17 2005/02/04 13:28:22 np Exp
+ * last modfied: Mon Apr 11 16:06:33 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile bif_core_defs.h ../../inst/bif/rtl/bif_core_regs.r
+ * id: $Id: bif_core_defs.h,v 1.3 2005/04/24 18:30:58 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/bif_dma_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/bif_dma_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/bif_dma_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/bif_dma_defs.h 2005-04-24 20:30:58.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/bif/rtl/bif_dma_regs.r
+- * id: bif_dma_regs.r,v 1.6 2005/02/04 13:28:31 perz Exp
++ * id: bif_dma_regs.r,v 1.6 2005/02/04 13:28:31 perz Exp
+ * last modfied: Mon Apr 11 16:06:33 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile bif_dma_defs.h ../../inst/bif/rtl/bif_dma_regs.r
+ * id: $Id: bif_dma_defs.h,v 1.2 2005/04/24 18:30:58 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/bif_slave_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/bif_slave_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/bif_slave_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/bif_slave_defs.h 2005-04-24 20:30:58.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/bif/rtl/bif_slave_regs.r
+- * id: bif_slave_regs.r,v 1.5 2005/02/04 13:55:28 perz Exp
++ * id: bif_slave_regs.r,v 1.5 2005/02/04 13:55:28 perz Exp
+ * last modfied: Mon Apr 11 16:06:34 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile bif_slave_defs.h ../../inst/bif/rtl/bif_slave_regs.r
+ * id: $Id: bif_slave_defs.h,v 1.2 2005/04/24 18:30:58 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/config_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/config_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/config_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/config_defs.h 2005-04-24 20:30:58.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../rtl/config_regs.r
+- * id: config_regs.r,v 1.23 2004/03/04 11:34:42 mikaeln Exp
++ * id: config_regs.r,v 1.23 2004/03/04 11:34:42 mikaeln Exp
+ * last modfied: Thu Mar 4 12:34:39 2004
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile config_defs.h ../../rtl/config_regs.r
+ * id: $Id: config_defs.h,v 1.6 2005/04/24 18:30:58 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/cpu_vect.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/cpu_vect.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/cpu_vect.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/cpu_vect.h 2005-04-24 20:30:58.000000000 +0200
+@@ -3,7 +3,7 @@
+ version . */
+
+ #ifndef _______INST_CRISP_DOC_CPU_VECT_R
+-#define _______INST_CRISP_DOC_CPU_VECT_R
++#define _______INST_CRISP_DOC_CPU_VECT_R
+ #define NMI_INTR_VECT 0x00
+ #define RESERVED_1_INTR_VECT 0x01
+ #define RESERVED_2_INTR_VECT 0x02
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/dma.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/dma.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/dma.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/dma.h 2006-06-25 17:01:59.000000000 +0200
+@@ -1,6 +1,6 @@
+-/* $Id: dma.h,v 1.7 2005/04/24 18:30:58 starvik Exp $
++/* $Id: dma.h,v 1.8 2006/06/25 15:01:59 starvik Exp $
+ *
+- * DMA C definitions and help macros
++ * DMA C definitions and help macros
+ *
+ */
+
+@@ -98,10 +98,10 @@
+
+ // give stream command
+ #define DMA_WR_CMD( inst, cmd_par ) \
+- do { reg_dma_rw_stream_cmd r = {0}; \
+- do { r = REG_RD( dma, inst, rw_stream_cmd ); } while( r.busy ); \
+- r.cmd = (cmd_par); \
+- REG_WR( dma, inst, rw_stream_cmd, r ); \
++ do { reg_dma_rw_stream_cmd __x = {0}; \
++ do { __x = REG_RD( dma, inst, rw_stream_cmd ); } while( __x.busy ); \
++ __x.cmd = (cmd_par); \
++ REG_WR( dma, inst, rw_stream_cmd, __x ); \
+ } while( 0 )
+
+ // load: g,c,d:burst
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/dma_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/dma_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/dma_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/dma_defs.h 2005-04-24 20:30:58.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/dma/inst/dma_common/rtl/dma_regdes.r
+- * id: dma_regdes.r,v 1.39 2005/02/10 14:07:23 janb Exp
++ * id: dma_regdes.r,v 1.39 2005/02/10 14:07:23 janb Exp
+ * last modfied: Mon Apr 11 16:06:51 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile dma_defs.h ../../inst/dma/inst/dma_common/rtl/dma_regdes.r
+ * id: $Id: dma_defs.h,v 1.7 2005/04/24 18:30:58 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/eth_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/eth_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/eth_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/eth_defs.h 2006-01-26 14:45:30.000000000 +0100
+@@ -3,12 +3,12 @@
+
+ /*
+ * This file is autogenerated from
+- * file: ../../inst/eth/rtl/eth_regs.r
+- * id: eth_regs.r,v 1.11 2005/02/09 10:48:38 kriskn Exp
+- * last modfied: Mon Apr 11 16:07:03 2005
+- *
+- * by /n/asic/design/tools/rdesc/src/rdes2c --outfile eth_defs.h ../../inst/eth/rtl/eth_regs.r
+- * id: $Id: eth_defs.h,v 1.6 2005/04/24 18:30:58 starvik Exp $
++ * file: eth.r
++ * id: eth_regs.r,v 1.16 2005/05/20 15:41:22 perz Exp
++ * last modfied: Mon Jan 9 06:06:41 2006
++ *
++ * by /n/asic/design/tools/rdesc/rdes2c eth.r
++ * id: $Id: eth_defs.h,v 1.7 2006/01/26 13:45:30 karljope Exp $
+ * Any changes here will be lost.
+ *
+ * -*- buffer-read-only: t -*-
+@@ -116,26 +116,28 @@
+
+ /* Register rw_ga_lo, scope eth, type rw */
+ typedef struct {
+- unsigned int table : 32;
++ unsigned int tbl : 32;
+ } reg_eth_rw_ga_lo;
+ #define REG_RD_ADDR_eth_rw_ga_lo 16
+ #define REG_WR_ADDR_eth_rw_ga_lo 16
+
+ /* Register rw_ga_hi, scope eth, type rw */
+ typedef struct {
+- unsigned int table : 32;
++ unsigned int tbl : 32;
+ } reg_eth_rw_ga_hi;
+ #define REG_RD_ADDR_eth_rw_ga_hi 20
+ #define REG_WR_ADDR_eth_rw_ga_hi 20
+
+ /* Register rw_gen_ctrl, scope eth, type rw */
+ typedef struct {
+- unsigned int en : 1;
+- unsigned int phy : 2;
+- unsigned int protocol : 1;
+- unsigned int loopback : 1;
+- unsigned int flow_ctrl_dis : 1;
+- unsigned int dummy1 : 26;
++ unsigned int en : 1;
++ unsigned int phy : 2;
++ unsigned int protocol : 1;
++ unsigned int loopback : 1;
++ unsigned int flow_ctrl : 1;
++ unsigned int gtxclk_out : 1;
++ unsigned int phyrst_n : 1;
++ unsigned int dummy1 : 24;
+ } reg_eth_rw_gen_ctrl;
+ #define REG_RD_ADDR_eth_rw_gen_ctrl 24
+ #define REG_WR_ADDR_eth_rw_gen_ctrl 24
+@@ -150,22 +152,23 @@
+ unsigned int oversize : 1;
+ unsigned int bad_crc : 1;
+ unsigned int duplex : 1;
+- unsigned int max_size : 1;
+- unsigned int dummy1 : 23;
++ unsigned int max_size : 16;
++ unsigned int dummy1 : 8;
+ } reg_eth_rw_rec_ctrl;
+ #define REG_RD_ADDR_eth_rw_rec_ctrl 28
+ #define REG_WR_ADDR_eth_rw_rec_ctrl 28
+
+ /* Register rw_tr_ctrl, scope eth, type rw */
+ typedef struct {
+- unsigned int crc : 1;
+- unsigned int pad : 1;
+- unsigned int retry : 1;
+- unsigned int ignore_col : 1;
+- unsigned int cancel : 1;
+- unsigned int hsh_delay : 1;
+- unsigned int ignore_crs : 1;
+- unsigned int dummy1 : 25;
++ unsigned int crc : 1;
++ unsigned int pad : 1;
++ unsigned int retry : 1;
++ unsigned int ignore_col : 1;
++ unsigned int cancel : 1;
++ unsigned int hsh_delay : 1;
++ unsigned int ignore_crs : 1;
++ unsigned int carrier_ext : 1;
++ unsigned int dummy1 : 24;
+ } reg_eth_rw_tr_ctrl;
+ #define REG_RD_ADDR_eth_rw_tr_ctrl 32
+ #define REG_WR_ADDR_eth_rw_tr_ctrl 32
+@@ -180,13 +183,10 @@
+
+ /* Register rw_mgm_ctrl, scope eth, type rw */
+ typedef struct {
+- unsigned int mdio : 1;
+- unsigned int mdoe : 1;
+- unsigned int mdc : 1;
+- unsigned int phyclk : 1;
+- unsigned int txdata : 4;
+- unsigned int txen : 1;
+- unsigned int dummy1 : 23;
++ unsigned int mdio : 1;
++ unsigned int mdoe : 1;
++ unsigned int mdc : 1;
++ unsigned int dummy1 : 29;
+ } reg_eth_rw_mgm_ctrl;
+ #define REG_RD_ADDR_eth_rw_mgm_ctrl 40
+ #define REG_WR_ADDR_eth_rw_mgm_ctrl 40
+@@ -196,17 +196,8 @@
+ unsigned int mdio : 1;
+ unsigned int exc_col : 1;
+ unsigned int urun : 1;
+- unsigned int phyclk : 1;
+- unsigned int txdata : 4;
+- unsigned int txen : 1;
+- unsigned int col : 1;
+- unsigned int crs : 1;
+- unsigned int txclk : 1;
+- unsigned int rxdata : 4;
+- unsigned int rxer : 1;
+- unsigned int rxdv : 1;
+- unsigned int rxclk : 1;
+- unsigned int dummy1 : 13;
++ unsigned int clk_125 : 1;
++ unsigned int dummy1 : 28;
+ } reg_eth_r_stat;
+ #define REG_RD_ADDR_eth_r_stat 44
+
+@@ -274,83 +265,83 @@
+
+ /* Register rw_intr_mask, scope eth, type rw */
+ typedef struct {
+- unsigned int crc : 1;
+- unsigned int align : 1;
+- unsigned int oversize : 1;
+- unsigned int congestion : 1;
+- unsigned int single_col : 1;
+- unsigned int mult_col : 1;
+- unsigned int late_col : 1;
+- unsigned int deferred : 1;
+- unsigned int carrier_loss : 1;
+- unsigned int sqe_test_err : 1;
+- unsigned int orun : 1;
+- unsigned int urun : 1;
+- unsigned int excessive_col : 1;
+- unsigned int mdio : 1;
+- unsigned int dummy1 : 18;
++ unsigned int crc : 1;
++ unsigned int align : 1;
++ unsigned int oversize : 1;
++ unsigned int congestion : 1;
++ unsigned int single_col : 1;
++ unsigned int mult_col : 1;
++ unsigned int late_col : 1;
++ unsigned int deferred : 1;
++ unsigned int carrier_loss : 1;
++ unsigned int sqe_test_err : 1;
++ unsigned int orun : 1;
++ unsigned int urun : 1;
++ unsigned int exc_col : 1;
++ unsigned int mdio : 1;
++ unsigned int dummy1 : 18;
+ } reg_eth_rw_intr_mask;
+ #define REG_RD_ADDR_eth_rw_intr_mask 76
+ #define REG_WR_ADDR_eth_rw_intr_mask 76
+
+ /* Register rw_ack_intr, scope eth, type rw */
+ typedef struct {
+- unsigned int crc : 1;
+- unsigned int align : 1;
+- unsigned int oversize : 1;
+- unsigned int congestion : 1;
+- unsigned int single_col : 1;
+- unsigned int mult_col : 1;
+- unsigned int late_col : 1;
+- unsigned int deferred : 1;
+- unsigned int carrier_loss : 1;
+- unsigned int sqe_test_err : 1;
+- unsigned int orun : 1;
+- unsigned int urun : 1;
+- unsigned int excessive_col : 1;
+- unsigned int mdio : 1;
+- unsigned int dummy1 : 18;
++ unsigned int crc : 1;
++ unsigned int align : 1;
++ unsigned int oversize : 1;
++ unsigned int congestion : 1;
++ unsigned int single_col : 1;
++ unsigned int mult_col : 1;
++ unsigned int late_col : 1;
++ unsigned int deferred : 1;
++ unsigned int carrier_loss : 1;
++ unsigned int sqe_test_err : 1;
++ unsigned int orun : 1;
++ unsigned int urun : 1;
++ unsigned int exc_col : 1;
++ unsigned int mdio : 1;
++ unsigned int dummy1 : 18;
+ } reg_eth_rw_ack_intr;
+ #define REG_RD_ADDR_eth_rw_ack_intr 80
+ #define REG_WR_ADDR_eth_rw_ack_intr 80
+
+ /* Register r_intr, scope eth, type r */
+ typedef struct {
+- unsigned int crc : 1;
+- unsigned int align : 1;
+- unsigned int oversize : 1;
+- unsigned int congestion : 1;
+- unsigned int single_col : 1;
+- unsigned int mult_col : 1;
+- unsigned int late_col : 1;
+- unsigned int deferred : 1;
+- unsigned int carrier_loss : 1;
+- unsigned int sqe_test_err : 1;
+- unsigned int orun : 1;
+- unsigned int urun : 1;
+- unsigned int excessive_col : 1;
+- unsigned int mdio : 1;
+- unsigned int dummy1 : 18;
++ unsigned int crc : 1;
++ unsigned int align : 1;
++ unsigned int oversize : 1;
++ unsigned int congestion : 1;
++ unsigned int single_col : 1;
++ unsigned int mult_col : 1;
++ unsigned int late_col : 1;
++ unsigned int deferred : 1;
++ unsigned int carrier_loss : 1;
++ unsigned int sqe_test_err : 1;
++ unsigned int orun : 1;
++ unsigned int urun : 1;
++ unsigned int exc_col : 1;
++ unsigned int mdio : 1;
++ unsigned int dummy1 : 18;
+ } reg_eth_r_intr;
+ #define REG_RD_ADDR_eth_r_intr 84
+
+ /* Register r_masked_intr, scope eth, type r */
+ typedef struct {
+- unsigned int crc : 1;
+- unsigned int align : 1;
+- unsigned int oversize : 1;
+- unsigned int congestion : 1;
+- unsigned int single_col : 1;
+- unsigned int mult_col : 1;
+- unsigned int late_col : 1;
+- unsigned int deferred : 1;
+- unsigned int carrier_loss : 1;
+- unsigned int sqe_test_err : 1;
+- unsigned int orun : 1;
+- unsigned int urun : 1;
+- unsigned int excessive_col : 1;
+- unsigned int mdio : 1;
+- unsigned int dummy1 : 18;
++ unsigned int crc : 1;
++ unsigned int align : 1;
++ unsigned int oversize : 1;
++ unsigned int congestion : 1;
++ unsigned int single_col : 1;
++ unsigned int mult_col : 1;
++ unsigned int late_col : 1;
++ unsigned int deferred : 1;
++ unsigned int carrier_loss : 1;
++ unsigned int sqe_test_err : 1;
++ unsigned int orun : 1;
++ unsigned int urun : 1;
++ unsigned int exc_col : 1;
++ unsigned int mdio : 1;
++ unsigned int dummy1 : 18;
+ } reg_eth_r_masked_intr;
+ #define REG_RD_ADDR_eth_r_masked_intr 88
+
+@@ -360,12 +351,15 @@
+ regk_eth_discard = 0x00000000,
+ regk_eth_ether = 0x00000000,
+ regk_eth_full = 0x00000001,
++ regk_eth_gmii = 0x00000003,
++ regk_eth_gtxclk = 0x00000001,
+ regk_eth_half = 0x00000000,
+ regk_eth_hsh = 0x00000001,
+ regk_eth_mii = 0x00000001,
++ regk_eth_mii_arec = 0x00000002,
+ regk_eth_mii_clk = 0x00000000,
+- regk_eth_mii_rec = 0x00000002,
+ regk_eth_no = 0x00000000,
++ regk_eth_phyrst = 0x00000000,
+ regk_eth_rec = 0x00000001,
+ regk_eth_rw_ga_hi_default = 0x00000000,
+ regk_eth_rw_ga_lo_default = 0x00000000,
+@@ -377,8 +371,8 @@
+ regk_eth_rw_ma1_lo_default = 0x00000000,
+ regk_eth_rw_mgm_ctrl_default = 0x00000000,
+ regk_eth_rw_test_ctrl_default = 0x00000000,
+- regk_eth_size1518 = 0x00000000,
+- regk_eth_size1522 = 0x00000001,
++ regk_eth_size1518 = 0x000005ee,
++ regk_eth_size1522 = 0x000005f2,
+ regk_eth_yes = 0x00000001
+ };
+ #endif /* __eth_defs_h */
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/eth_defs_fs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/eth_defs_fs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/eth_defs_fs.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/eth_defs_fs.h 2007-02-07 10:36:10.000000000 +0100
+@@ -0,0 +1,384 @@
++#ifndef __eth_defs_h
++#define __eth_defs_h
++
++/*
++ * This file is autogenerated from
++ * file: eth_regs.r
++ * id: eth_regs.r,v 1.17 2006/02/08 16:47:19 perz Exp perz
++ * last modfied: Tue Feb 6 13:57:16 2007
++ *
++ * by /n/asic/design/io/eth/inst/rdesc/rdes2c eth_regs.r
++ * id: $Id: eth_defs_fs.h,v 1.1 2007/02/07 09:36:10 karljope Exp $
++ * Any changes here will be lost.
++ *
++ * -*- buffer-read-only: t -*-
++ */
++/* Main access macros */
++#ifndef REG_RD
++#define REG_RD( scope, inst, reg ) \
++ REG_READ( reg_##scope##_##reg, \
++ (inst) + REG_RD_ADDR_##scope##_##reg )
++#endif
++
++#ifndef REG_WR
++#define REG_WR( scope, inst, reg, val ) \
++ REG_WRITE( reg_##scope##_##reg, \
++ (inst) + REG_WR_ADDR_##scope##_##reg, (val) )
++#endif
++
++#ifndef REG_RD_VECT
++#define REG_RD_VECT( scope, inst, reg, index ) \
++ REG_READ( reg_##scope##_##reg, \
++ (inst) + REG_RD_ADDR_##scope##_##reg + \
++ (index) * STRIDE_##scope##_##reg )
++#endif
++
++#ifndef REG_WR_VECT
++#define REG_WR_VECT( scope, inst, reg, index, val ) \
++ REG_WRITE( reg_##scope##_##reg, \
++ (inst) + REG_WR_ADDR_##scope##_##reg + \
++ (index) * STRIDE_##scope##_##reg, (val) )
++#endif
++
++#ifndef REG_RD_INT
++#define REG_RD_INT( scope, inst, reg ) \
++ REG_READ( int, (inst) + REG_RD_ADDR_##scope##_##reg )
++#endif
++
++#ifndef REG_WR_INT
++#define REG_WR_INT( scope, inst, reg, val ) \
++ REG_WRITE( int, (inst) + REG_WR_ADDR_##scope##_##reg, (val) )
++#endif
++
++#ifndef REG_RD_INT_VECT
++#define REG_RD_INT_VECT( scope, inst, reg, index ) \
++ REG_READ( int, (inst) + REG_RD_ADDR_##scope##_##reg + \
++ (index) * STRIDE_##scope##_##reg )
++#endif
++
++#ifndef REG_WR_INT_VECT
++#define REG_WR_INT_VECT( scope, inst, reg, index, val ) \
++ REG_WRITE( int, (inst) + REG_WR_ADDR_##scope##_##reg + \
++ (index) * STRIDE_##scope##_##reg, (val) )
++#endif
++
++#ifndef REG_TYPE_CONV
++#define REG_TYPE_CONV( type, orgtype, val ) \
++ ( { union { orgtype o; type n; } r; r.o = val; r.n; } )
++#endif
++
++#ifndef reg_page_size
++#define reg_page_size 8192
++#endif
++
++#ifndef REG_ADDR
++#define REG_ADDR( scope, inst, reg ) \
++ ( (inst) + REG_RD_ADDR_##scope##_##reg )
++#endif
++
++#ifndef REG_ADDR_VECT
++#define REG_ADDR_VECT( scope, inst, reg, index ) \
++ ( (inst) + REG_RD_ADDR_##scope##_##reg + \
++ (index) * STRIDE_##scope##_##reg )
++#endif
++
++/* C-code for register scope eth */
++
++/* Register rw_ma0_lo, scope eth, type rw */
++typedef struct {
++ unsigned int addr : 32;
++} reg_eth_rw_ma0_lo;
++#define REG_RD_ADDR_eth_rw_ma0_lo 0
++#define REG_WR_ADDR_eth_rw_ma0_lo 0
++
++/* Register rw_ma0_hi, scope eth, type rw */
++typedef struct {
++ unsigned int addr : 16;
++ unsigned int dummy1 : 16;
++} reg_eth_rw_ma0_hi;
++#define REG_RD_ADDR_eth_rw_ma0_hi 4
++#define REG_WR_ADDR_eth_rw_ma0_hi 4
++
++/* Register rw_ma1_lo, scope eth, type rw */
++typedef struct {
++ unsigned int addr : 32;
++} reg_eth_rw_ma1_lo;
++#define REG_RD_ADDR_eth_rw_ma1_lo 8
++#define REG_WR_ADDR_eth_rw_ma1_lo 8
++
++/* Register rw_ma1_hi, scope eth, type rw */
++typedef struct {
++ unsigned int addr : 16;
++ unsigned int dummy1 : 16;
++} reg_eth_rw_ma1_hi;
++#define REG_RD_ADDR_eth_rw_ma1_hi 12
++#define REG_WR_ADDR_eth_rw_ma1_hi 12
++
++/* Register rw_ga_lo, scope eth, type rw */
++typedef struct {
++ unsigned int table : 32;
++} reg_eth_rw_ga_lo;
++#define REG_RD_ADDR_eth_rw_ga_lo 16
++#define REG_WR_ADDR_eth_rw_ga_lo 16
++
++/* Register rw_ga_hi, scope eth, type rw */
++typedef struct {
++ unsigned int table : 32;
++} reg_eth_rw_ga_hi;
++#define REG_RD_ADDR_eth_rw_ga_hi 20
++#define REG_WR_ADDR_eth_rw_ga_hi 20
++
++/* Register rw_gen_ctrl, scope eth, type rw */
++typedef struct {
++ unsigned int en : 1;
++ unsigned int phy : 2;
++ unsigned int protocol : 1;
++ unsigned int loopback : 1;
++ unsigned int flow_ctrl : 1;
++ unsigned int dummy1 : 26;
++} reg_eth_rw_gen_ctrl;
++#define REG_RD_ADDR_eth_rw_gen_ctrl 24
++#define REG_WR_ADDR_eth_rw_gen_ctrl 24
++
++/* Register rw_rec_ctrl, scope eth, type rw */
++typedef struct {
++ unsigned int ma0 : 1;
++ unsigned int ma1 : 1;
++ unsigned int individual : 1;
++ unsigned int broadcast : 1;
++ unsigned int undersize : 1;
++ unsigned int oversize : 1;
++ unsigned int bad_crc : 1;
++ unsigned int duplex : 1;
++ unsigned int max_size : 1;
++ unsigned int dummy1 : 23;
++} reg_eth_rw_rec_ctrl;
++#define REG_RD_ADDR_eth_rw_rec_ctrl 28
++#define REG_WR_ADDR_eth_rw_rec_ctrl 28
++
++/* Register rw_tr_ctrl, scope eth, type rw */
++typedef struct {
++ unsigned int crc : 1;
++ unsigned int pad : 1;
++ unsigned int retry : 1;
++ unsigned int ignore_col : 1;
++ unsigned int cancel : 1;
++ unsigned int hsh_delay : 1;
++ unsigned int ignore_crs : 1;
++ unsigned int dummy1 : 25;
++} reg_eth_rw_tr_ctrl;
++#define REG_RD_ADDR_eth_rw_tr_ctrl 32
++#define REG_WR_ADDR_eth_rw_tr_ctrl 32
++
++/* Register rw_clr_err, scope eth, type rw */
++typedef struct {
++ unsigned int clr : 1;
++ unsigned int dummy1 : 31;
++} reg_eth_rw_clr_err;
++#define REG_RD_ADDR_eth_rw_clr_err 36
++#define REG_WR_ADDR_eth_rw_clr_err 36
++
++/* Register rw_mgm_ctrl, scope eth, type rw */
++typedef struct {
++ unsigned int mdio : 1;
++ unsigned int mdoe : 1;
++ unsigned int mdc : 1;
++ unsigned int phyclk : 1;
++ unsigned int txdata : 4;
++ unsigned int txen : 1;
++ unsigned int dummy1 : 23;
++} reg_eth_rw_mgm_ctrl;
++#define REG_RD_ADDR_eth_rw_mgm_ctrl 40
++#define REG_WR_ADDR_eth_rw_mgm_ctrl 40
++
++/* Register r_stat, scope eth, type r */
++typedef struct {
++ unsigned int mdio : 1;
++ unsigned int exc_col : 1;
++ unsigned int urun : 1;
++ unsigned int phyclk : 1;
++ unsigned int txdata : 4;
++ unsigned int txen : 1;
++ unsigned int col : 1;
++ unsigned int crs : 1;
++ unsigned int txclk : 1;
++ unsigned int rxdata : 4;
++ unsigned int rxer : 1;
++ unsigned int rxdv : 1;
++ unsigned int rxclk : 1;
++ unsigned int dummy1 : 13;
++} reg_eth_r_stat;
++#define REG_RD_ADDR_eth_r_stat 44
++
++/* Register rs_rec_cnt, scope eth, type rs */
++typedef struct {
++ unsigned int crc_err : 8;
++ unsigned int align_err : 8;
++ unsigned int oversize : 8;
++ unsigned int congestion : 8;
++} reg_eth_rs_rec_cnt;
++#define REG_RD_ADDR_eth_rs_rec_cnt 48
++
++/* Register r_rec_cnt, scope eth, type r */
++typedef struct {
++ unsigned int crc_err : 8;
++ unsigned int align_err : 8;
++ unsigned int oversize : 8;
++ unsigned int congestion : 8;
++} reg_eth_r_rec_cnt;
++#define REG_RD_ADDR_eth_r_rec_cnt 52
++
++/* Register rs_tr_cnt, scope eth, type rs */
++typedef struct {
++ unsigned int single_col : 8;
++ unsigned int mult_col : 8;
++ unsigned int late_col : 8;
++ unsigned int deferred : 8;
++} reg_eth_rs_tr_cnt;
++#define REG_RD_ADDR_eth_rs_tr_cnt 56
++
++/* Register r_tr_cnt, scope eth, type r */
++typedef struct {
++ unsigned int single_col : 8;
++ unsigned int mult_col : 8;
++ unsigned int late_col : 8;
++ unsigned int deferred : 8;
++} reg_eth_r_tr_cnt;
++#define REG_RD_ADDR_eth_r_tr_cnt 60
++
++/* Register rs_phy_cnt, scope eth, type rs */
++typedef struct {
++ unsigned int carrier_loss : 8;
++ unsigned int sqe_err : 8;
++ unsigned int dummy1 : 16;
++} reg_eth_rs_phy_cnt;
++#define REG_RD_ADDR_eth_rs_phy_cnt 64
++
++/* Register r_phy_cnt, scope eth, type r */
++typedef struct {
++ unsigned int carrier_loss : 8;
++ unsigned int sqe_err : 8;
++ unsigned int dummy1 : 16;
++} reg_eth_r_phy_cnt;
++#define REG_RD_ADDR_eth_r_phy_cnt 68
++
++/* Register rw_test_ctrl, scope eth, type rw */
++typedef struct {
++ unsigned int snmp_inc : 1;
++ unsigned int snmp : 1;
++ unsigned int backoff : 1;
++ unsigned int dummy1 : 29;
++} reg_eth_rw_test_ctrl;
++#define REG_RD_ADDR_eth_rw_test_ctrl 72
++#define REG_WR_ADDR_eth_rw_test_ctrl 72
++
++/* Register rw_intr_mask, scope eth, type rw */
++typedef struct {
++ unsigned int crc : 1;
++ unsigned int align : 1;
++ unsigned int oversize : 1;
++ unsigned int congestion : 1;
++ unsigned int single_col : 1;
++ unsigned int mult_col : 1;
++ unsigned int late_col : 1;
++ unsigned int deferred : 1;
++ unsigned int carrier_loss : 1;
++ unsigned int sqe_test_err : 1;
++ unsigned int orun : 1;
++ unsigned int urun : 1;
++ unsigned int exc_col : 1;
++ unsigned int mdio : 1;
++ unsigned int dummy1 : 18;
++} reg_eth_rw_intr_mask;
++#define REG_RD_ADDR_eth_rw_intr_mask 76
++#define REG_WR_ADDR_eth_rw_intr_mask 76
++
++/* Register rw_ack_intr, scope eth, type rw */
++typedef struct {
++ unsigned int crc : 1;
++ unsigned int align : 1;
++ unsigned int oversize : 1;
++ unsigned int congestion : 1;
++ unsigned int single_col : 1;
++ unsigned int mult_col : 1;
++ unsigned int late_col : 1;
++ unsigned int deferred : 1;
++ unsigned int carrier_loss : 1;
++ unsigned int sqe_test_err : 1;
++ unsigned int orun : 1;
++ unsigned int urun : 1;
++ unsigned int exc_col : 1;
++ unsigned int mdio : 1;
++ unsigned int dummy1 : 18;
++} reg_eth_rw_ack_intr;
++#define REG_RD_ADDR_eth_rw_ack_intr 80
++#define REG_WR_ADDR_eth_rw_ack_intr 80
++
++/* Register r_intr, scope eth, type r */
++typedef struct {
++ unsigned int crc : 1;
++ unsigned int align : 1;
++ unsigned int oversize : 1;
++ unsigned int congestion : 1;
++ unsigned int single_col : 1;
++ unsigned int mult_col : 1;
++ unsigned int late_col : 1;
++ unsigned int deferred : 1;
++ unsigned int carrier_loss : 1;
++ unsigned int sqe_test_err : 1;
++ unsigned int orun : 1;
++ unsigned int urun : 1;
++ unsigned int exc_col : 1;
++ unsigned int mdio : 1;
++ unsigned int dummy1 : 18;
++} reg_eth_r_intr;
++#define REG_RD_ADDR_eth_r_intr 84
++
++/* Register r_masked_intr, scope eth, type r */
++typedef struct {
++ unsigned int crc : 1;
++ unsigned int align : 1;
++ unsigned int oversize : 1;
++ unsigned int congestion : 1;
++ unsigned int single_col : 1;
++ unsigned int mult_col : 1;
++ unsigned int late_col : 1;
++ unsigned int deferred : 1;
++ unsigned int carrier_loss : 1;
++ unsigned int sqe_test_err : 1;
++ unsigned int orun : 1;
++ unsigned int urun : 1;
++ unsigned int exc_col : 1;
++ unsigned int mdio : 1;
++ unsigned int dummy1 : 18;
++} reg_eth_r_masked_intr;
++#define REG_RD_ADDR_eth_r_masked_intr 88
++
++
++/* Constants */
++enum {
++ regk_eth_discard = 0x00000000,
++ regk_eth_ether = 0x00000000,
++ regk_eth_full = 0x00000001,
++ regk_eth_half = 0x00000000,
++ regk_eth_hsh = 0x00000001,
++ regk_eth_mii = 0x00000001,
++ regk_eth_mii_arec = 0x00000002,
++ regk_eth_mii_clk = 0x00000000,
++ regk_eth_no = 0x00000000,
++ regk_eth_rec = 0x00000001,
++ regk_eth_rw_ga_hi_default = 0x00000000,
++ regk_eth_rw_ga_lo_default = 0x00000000,
++ regk_eth_rw_gen_ctrl_default = 0x00000000,
++ regk_eth_rw_intr_mask_default = 0x00000000,
++ regk_eth_rw_ma0_hi_default = 0x00000000,
++ regk_eth_rw_ma0_lo_default = 0x00000000,
++ regk_eth_rw_ma1_hi_default = 0x00000000,
++ regk_eth_rw_ma1_lo_default = 0x00000000,
++ regk_eth_rw_mgm_ctrl_default = 0x00000000,
++ regk_eth_rw_test_ctrl_default = 0x00000000,
++ regk_eth_size1518 = 0x00000000,
++ regk_eth_size1522 = 0x00000001,
++ regk_eth_yes = 0x00000001
++};
++#endif /* __eth_defs_h */
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/extmem_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/extmem_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/extmem_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/extmem_defs.h 2004-06-04 09:15:33.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/ext_mem/mod/extmem_regs.r
+- * id: extmem_regs.r,v 1.1 2004/02/16 13:29:30 np Exp
++ * id: extmem_regs.r,v 1.1 2004/02/16 13:29:30 np Exp
+ * last modfied: Tue Mar 30 22:26:21 2004
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile extmem_defs.h ../../inst/ext_mem/mod/extmem_regs.r
+ * id: $Id: extmem_defs.h,v 1.5 2004/06/04 07:15:33 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/gio_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/gio_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/gio_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/gio_defs.h 2005-04-24 20:30:58.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/gio/rtl/gio_regs.r
+- * id: gio_regs.r,v 1.5 2005/02/04 09:43:21 perz Exp
++ * id: gio_regs.r,v 1.5 2005/02/04 09:43:21 perz Exp
+ * last modfied: Mon Apr 11 16:07:47 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile gio_defs.h ../../inst/gio/rtl/gio_regs.r
+ * id: $Id: gio_defs.h,v 1.6 2005/04/24 18:30:58 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/intr_vect.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/intr_vect.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/intr_vect.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/intr_vect.h 2005-05-23 14:59:21.000000000 +0200
+@@ -3,7 +3,7 @@
+ version . */
+
+ #ifndef _______INST_INTR_VECT_RTL_GUINNESS_IVMASK_CONFIG_R
+-#define _______INST_INTR_VECT_RTL_GUINNESS_IVMASK_CONFIG_R
++#define _______INST_INTR_VECT_RTL_GUINNESS_IVMASK_CONFIG_R
+ #define MEMARB_INTR_VECT 0x31
+ #define GEN_IO_INTR_VECT 0x32
+ #define IOP0_INTR_VECT 0x33
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/intr_vect_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/intr_vect_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/intr_vect_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/intr_vect_defs.h 2005-04-24 20:30:58.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/intr_vect/rtl/guinness/ivmask.config.r
+- * id: ivmask.config.r,v 1.4 2005/02/15 16:05:38 stefans Exp
++ * id: ivmask.config.r,v 1.4 2005/02/15 16:05:38 stefans Exp
+ * last modfied: Mon Apr 11 16:08:03 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile intr_vect_defs.h ../../inst/intr_vect/rtl/guinness/ivmask.config.r
+ * id: $Id: intr_vect_defs.h,v 1.8 2005/04/24 18:30:58 starvik Exp $
+ * Any changes here will be lost.
+@@ -209,7 +209,7 @@
+ #define REG_RD_ADDR_intr_vect_r_guru 16
+
+ /* Register rw_ipi, scope intr_vect, type rw */
+-typedef struct
++typedef struct
+ {
+ unsigned int vector;
+ } reg_intr_vect_rw_ipi;
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/Makefile linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/Makefile
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/Makefile 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/Makefile 2004-01-07 21:34:55.000000000 +0100
+@@ -125,14 +125,14 @@
+ done
+
+ .PHONY: axw
+-## %.axw - Generate the specified .axw file (doesn't work for all files
++## %.axw - Generate the specified .axw file (doesn't work for all files
+ ## due to inconsistent naming of .r files.
+ %.axw: axw
+ @for RDES in $(IOPROCREGDESC); do \
+ if echo "$$RDES" | grep $* ; then \
+ $(RDES2TXT) $$RDES; \
+ fi \
+- done
++ done
+
+ .PHONY: clean
+ ## clean - Remove .h files and .axw files.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_crc_par_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_crc_par_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_crc_par_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_crc_par_defs_asm.h 2005-04-24 20:31:06.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/iop_crc_par.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:08:45 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_crc_par_defs_asm.h ../../inst/io_proc/rtl/iop_crc_par.r
+ * id: $Id: iop_crc_par_defs_asm.h,v 1.5 2005/04/24 18:31:06 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_dmc_in_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_dmc_in_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_dmc_in_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_dmc_in_defs_asm.h 2005-04-24 20:31:06.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/io_proc/rtl/iop_dmc_in.r
+- * id: iop_dmc_in.r,v 1.26 2005/02/16 09:14:17 niklaspa Exp
++ * id: iop_dmc_in.r,v 1.26 2005/02/16 09:14:17 niklaspa Exp
+ * last modfied: Mon Apr 11 16:08:45 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_dmc_in_defs_asm.h ../../inst/io_proc/rtl/iop_dmc_in.r
+ * id: $Id: iop_dmc_in_defs_asm.h,v 1.5 2005/04/24 18:31:06 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_dmc_out_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_dmc_out_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_dmc_out_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_dmc_out_defs_asm.h 2005-04-24 20:31:06.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/io_proc/rtl/iop_dmc_out.r
+- * id: iop_dmc_out.r,v 1.30 2005/02/16 09:14:11 niklaspa Exp
++ * id: iop_dmc_out.r,v 1.30 2005/02/16 09:14:11 niklaspa Exp
+ * last modfied: Mon Apr 11 16:08:45 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_dmc_out_defs_asm.h ../../inst/io_proc/rtl/iop_dmc_out.r
+ * id: $Id: iop_dmc_out_defs_asm.h,v 1.5 2005/04/24 18:31:06 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_fifo_in_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_fifo_in_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_fifo_in_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_fifo_in_defs_asm.h 2005-04-24 20:31:06.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/iop_fifo_in.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:10:07 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_fifo_in_defs_asm.h ../../inst/io_proc/rtl/iop_fifo_in.r
+ * id: $Id: iop_fifo_in_defs_asm.h,v 1.5 2005/04/24 18:31:06 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_fifo_in_extra_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_fifo_in_extra_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_fifo_in_extra_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_fifo_in_extra_defs_asm.h 2005-04-24 20:31:06.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/iop_fifo_in_extra.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:10:08 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_fifo_in_extra_defs_asm.h ../../inst/io_proc/rtl/iop_fifo_in_extra.r
+ * id: $Id: iop_fifo_in_extra_defs_asm.h,v 1.1 2005/04/24 18:31:06 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_fifo_out_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_fifo_out_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_fifo_out_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_fifo_out_defs_asm.h 2005-04-24 20:31:06.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/iop_fifo_out.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:10:09 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_fifo_out_defs_asm.h ../../inst/io_proc/rtl/iop_fifo_out.r
+ * id: $Id: iop_fifo_out_defs_asm.h,v 1.5 2005/04/24 18:31:06 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_fifo_out_extra_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_fifo_out_extra_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_fifo_out_extra_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_fifo_out_extra_defs_asm.h 2005-04-24 20:31:06.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/iop_fifo_out_extra.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:10:10 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_fifo_out_extra_defs_asm.h ../../inst/io_proc/rtl/iop_fifo_out_extra.r
+ * id: $Id: iop_fifo_out_extra_defs_asm.h,v 1.1 2005/04/24 18:31:06 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_mpu_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_mpu_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_mpu_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_mpu_defs_asm.h 2005-04-24 20:31:06.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/io_proc/rtl/iop_mpu.r
+- * id: iop_mpu.r,v 1.30 2005/02/17 08:12:33 niklaspa Exp
++ * id: iop_mpu.r,v 1.30 2005/02/17 08:12:33 niklaspa Exp
+ * last modfied: Mon Apr 11 16:08:45 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_mpu_defs_asm.h ../../inst/io_proc/rtl/iop_mpu.r
+ * id: $Id: iop_mpu_defs_asm.h,v 1.5 2005/04/24 18:31:06 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_reg_space_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_reg_space_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_reg_space_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_reg_space_asm.h 2005-04-24 20:31:06.000000000 +0200
+@@ -1,5 +1,5 @@
+ /* Autogenerated Changes here will be lost!
+- * generated by ../gen_sw.pl Mon Apr 11 16:10:18 2005 iop_sw.cfg
++ * generated by ../gen_sw.pl Mon Apr 11 16:10:18 2005 iop_sw.cfg
+ */
+ #define iop_version 0
+ #define iop_fifo_in0_extra 64
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sap_in_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sap_in_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sap_in_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sap_in_defs_asm.h 2005-04-24 20:31:06.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/iop_sap_in.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:08:45 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_sap_in_defs_asm.h ../../inst/io_proc/rtl/iop_sap_in.r
+ * id: $Id: iop_sap_in_defs_asm.h,v 1.5 2005/04/24 18:31:06 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sap_out_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sap_out_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sap_out_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sap_out_defs_asm.h 2005-04-24 20:31:06.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/iop_sap_out.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:08:46 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_sap_out_defs_asm.h ../../inst/io_proc/rtl/iop_sap_out.r
+ * id: $Id: iop_sap_out_defs_asm.h,v 1.5 2005/04/24 18:31:06 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_scrc_in_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_scrc_in_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_scrc_in_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_scrc_in_defs_asm.h 2005-04-24 20:31:06.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/io_proc/rtl/iop_scrc_in.r
+- * id: iop_scrc_in.r,v 1.10 2005/02/16 09:13:58 niklaspa Exp
++ * id: iop_scrc_in.r,v 1.10 2005/02/16 09:13:58 niklaspa Exp
+ * last modfied: Mon Apr 11 16:08:46 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_scrc_in_defs_asm.h ../../inst/io_proc/rtl/iop_scrc_in.r
+ * id: $Id: iop_scrc_in_defs_asm.h,v 1.5 2005/04/24 18:31:06 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_scrc_out_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_scrc_out_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_scrc_out_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_scrc_out_defs_asm.h 2005-04-24 20:31:06.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/io_proc/rtl/iop_scrc_out.r
+- * id: iop_scrc_out.r,v 1.11 2005/02/16 09:13:38 niklaspa Exp
++ * id: iop_scrc_out.r,v 1.11 2005/02/16 09:13:38 niklaspa Exp
+ * last modfied: Mon Apr 11 16:08:46 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_scrc_out_defs_asm.h ../../inst/io_proc/rtl/iop_scrc_out.r
+ * id: $Id: iop_scrc_out_defs_asm.h,v 1.5 2005/04/24 18:31:06 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_spu_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_spu_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_spu_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_spu_defs_asm.h 2005-04-24 20:31:06.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/iop_spu.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:08:46 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_spu_defs_asm.h ../../inst/io_proc/rtl/iop_spu.r
+ * id: $Id: iop_spu_defs_asm.h,v 1.5 2005/04/24 18:31:06 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sw_cfg_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sw_cfg_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sw_cfg_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sw_cfg_defs_asm.h 2005-04-24 20:31:07.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/guinness/iop_sw_cfg.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:10:19 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_sw_cfg_defs_asm.h ../../inst/io_proc/rtl/guinness/iop_sw_cfg.r
+ * id: $Id: iop_sw_cfg_defs_asm.h,v 1.5 2005/04/24 18:31:07 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sw_cpu_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sw_cpu_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sw_cpu_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sw_cpu_defs_asm.h 2005-04-24 20:31:07.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/guinness/iop_sw_cpu.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:10:19 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_sw_cpu_defs_asm.h ../../inst/io_proc/rtl/guinness/iop_sw_cpu.r
+ * id: $Id: iop_sw_cpu_defs_asm.h,v 1.5 2005/04/24 18:31:07 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sw_mpu_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sw_mpu_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sw_mpu_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sw_mpu_defs_asm.h 2005-04-24 20:31:07.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/guinness/iop_sw_mpu.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:10:19 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_sw_mpu_defs_asm.h ../../inst/io_proc/rtl/guinness/iop_sw_mpu.r
+ * id: $Id: iop_sw_mpu_defs_asm.h,v 1.5 2005/04/24 18:31:07 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sw_spu_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sw_spu_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sw_spu_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_sw_spu_defs_asm.h 2005-04-24 20:31:07.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/guinness/iop_sw_spu.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:10:19 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_sw_spu_defs_asm.h ../../inst/io_proc/rtl/guinness/iop_sw_spu.r
+ * id: $Id: iop_sw_spu_defs_asm.h,v 1.5 2005/04/24 18:31:07 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_timer_grp_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_timer_grp_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_timer_grp_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_timer_grp_defs_asm.h 2005-04-24 20:31:07.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/io_proc/rtl/iop_timer_grp.r
+- * id: iop_timer_grp.r,v 1.29 2005/02/16 09:13:27 niklaspa Exp
++ * id: iop_timer_grp.r,v 1.29 2005/02/16 09:13:27 niklaspa Exp
+ * last modfied: Mon Apr 11 16:08:46 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_timer_grp_defs_asm.h ../../inst/io_proc/rtl/iop_timer_grp.r
+ * id: $Id: iop_timer_grp_defs_asm.h,v 1.5 2005/04/24 18:31:07 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_trigger_grp_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_trigger_grp_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_trigger_grp_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_trigger_grp_defs_asm.h 2005-04-24 20:31:07.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/io_proc/rtl/iop_trigger_grp.r
+- * id: iop_trigger_grp.r,v 0.20 2005/02/16 09:13:20 niklaspa Exp
++ * id: iop_trigger_grp.r,v 0.20 2005/02/16 09:13:20 niklaspa Exp
+ * last modfied: Mon Apr 11 16:08:46 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_trigger_grp_defs_asm.h ../../inst/io_proc/rtl/iop_trigger_grp.r
+ * id: $Id: iop_trigger_grp_defs_asm.h,v 1.5 2005/04/24 18:31:07 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_version_defs_asm.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_version_defs_asm.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/asm/iop_version_defs_asm.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/asm/iop_version_defs_asm.h 2005-04-24 20:31:07.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/io_proc/rtl/guinness/iop_version.r
+- * id: iop_version.r,v 1.3 2004/04/22 12:37:54 jonaso Exp
++ * id: iop_version.r,v 1.3 2004/04/22 12:37:54 jonaso Exp
+ * last modfied: Mon Apr 11 16:08:44 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -asm --outfile asm/iop_version_defs_asm.h ../../inst/io_proc/rtl/guinness/iop_version.r
+ * id: $Id: iop_version_defs_asm.h,v 1.5 2005/04/24 18:31:07 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_crc_par_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_crc_par_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_crc_par_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_crc_par_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/iop_crc_par.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:08:45 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_crc_par_defs.h ../../inst/io_proc/rtl/iop_crc_par.r
+ * id: $Id: iop_crc_par_defs.h,v 1.5 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_dmc_in_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_dmc_in_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_dmc_in_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_dmc_in_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/io_proc/rtl/iop_dmc_in.r
+- * id: iop_dmc_in.r,v 1.26 2005/02/16 09:14:17 niklaspa Exp
++ * id: iop_dmc_in.r,v 1.26 2005/02/16 09:14:17 niklaspa Exp
+ * last modfied: Mon Apr 11 16:08:45 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_dmc_in_defs.h ../../inst/io_proc/rtl/iop_dmc_in.r
+ * id: $Id: iop_dmc_in_defs.h,v 1.5 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_dmc_out_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_dmc_out_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_dmc_out_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_dmc_out_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/io_proc/rtl/iop_dmc_out.r
+- * id: iop_dmc_out.r,v 1.30 2005/02/16 09:14:11 niklaspa Exp
++ * id: iop_dmc_out.r,v 1.30 2005/02/16 09:14:11 niklaspa Exp
+ * last modfied: Mon Apr 11 16:08:45 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_dmc_out_defs.h ../../inst/io_proc/rtl/iop_dmc_out.r
+ * id: $Id: iop_dmc_out_defs.h,v 1.5 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_fifo_in_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_fifo_in_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_fifo_in_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_fifo_in_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/iop_fifo_in.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:10:07 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_fifo_in_defs.h ../../inst/io_proc/rtl/iop_fifo_in.r
+ * id: $Id: iop_fifo_in_defs.h,v 1.4 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_fifo_in_extra_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_fifo_in_extra_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_fifo_in_extra_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_fifo_in_extra_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/iop_fifo_in_extra.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:10:08 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_fifo_in_extra_defs.h ../../inst/io_proc/rtl/iop_fifo_in_extra.r
+ * id: $Id: iop_fifo_in_extra_defs.h,v 1.1 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_fifo_out_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_fifo_out_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_fifo_out_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_fifo_out_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/iop_fifo_out.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:10:09 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_fifo_out_defs.h ../../inst/io_proc/rtl/iop_fifo_out.r
+ * id: $Id: iop_fifo_out_defs.h,v 1.4 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_fifo_out_extra_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_fifo_out_extra_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_fifo_out_extra_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_fifo_out_extra_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/iop_fifo_out_extra.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:10:10 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_fifo_out_extra_defs.h ../../inst/io_proc/rtl/iop_fifo_out_extra.r
+ * id: $Id: iop_fifo_out_extra_defs.h,v 1.1 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_mpu_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_mpu_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_mpu_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_mpu_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/io_proc/rtl/iop_mpu.r
+- * id: iop_mpu.r,v 1.30 2005/02/17 08:12:33 niklaspa Exp
++ * id: iop_mpu.r,v 1.30 2005/02/17 08:12:33 niklaspa Exp
+ * last modfied: Mon Apr 11 16:08:45 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_mpu_defs.h ../../inst/io_proc/rtl/iop_mpu.r
+ * id: $Id: iop_mpu_defs.h,v 1.5 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_mpu_macros.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_mpu_macros.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_mpu_macros.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_mpu_macros.h 2004-01-07 16:18:30.000000000 +0100
+@@ -96,189 +96,189 @@
+ #define MPU_ADD_RRR(S,N,D) (0x4000008C | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ADD_RRS(S,N,D) (0x4000048C | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ADD_RSR(S,N,D) (0x4000018C | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ADD_RSS(S,N,D) (0x4000058C | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ADD_SRR(S,N,D) (0x4000028C | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ADD_SRS(S,N,D) (0x4000068C | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ADD_SSR(S,N,D) (0x4000038C | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ADD_SSS(S,N,D) (0x4000078C | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ADDQ_RIR(S,N,D) (0x10000000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 16) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ADDQ_IRR(S,N,D) (0x10000000 | ((S & ((1 << 16) - 1)) << 0)\
+ | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ADDX_IRR_INSTR(S,N,D) (0xC000008C | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ADDX_IRR_IMM(S,N,D) (S & 0xFFFFFFFF)
+
+ #define MPU_ADDX_RIR_INSTR(S,N,D) (0xC000008C | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ADDX_RIR_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_ADDX_ISR_INSTR(S,N,D) (0xC000028C | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ADDX_ISR_IMM(S,N,D) (S & 0xFFFFFFFF)
+
+ #define MPU_ADDX_SIR_INSTR(S,N,D) (0xC000028C | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ADDX_SIR_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_ADDX_IRS_INSTR(S,N,D) (0xC000048C | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ADDX_IRS_IMM(S,N,D) (S & 0xFFFFFFFF)
+
+ #define MPU_ADDX_RIS_INSTR(S,N,D) (0xC000048C | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ADDX_RIS_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_ADDX_ISS_INSTR(S,N,D) (0xC000068C | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ADDX_ISS_IMM(S,N,D) (S & 0xFFFFFFFF)
+
+ #define MPU_ADDX_SIS_INSTR(S,N,D) (0xC000068C | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ADDX_SIS_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_AND_RRR(S,N,D) (0x4000008A | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_AND_RRS(S,N,D) (0x4000048A | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_AND_RSR(S,N,D) (0x4000018A | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_AND_RSS(S,N,D) (0x4000058A | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_AND_SRR(S,N,D) (0x4000028A | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_AND_SRS(S,N,D) (0x4000068A | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_AND_SSR(S,N,D) (0x4000038A | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_AND_SSS(S,N,D) (0x4000078A | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ANDQ_RIR(S,N,D) (0x08000000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 16) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ANDQ_IRR(S,N,D) (0x08000000 | ((S & ((1 << 16) - 1)) << 0)\
+ | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ANDX_RIR_INSTR(S,N,D) (0xC000008A | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ANDX_RIR_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_ANDX_IRR_INSTR(S,N,D) (0xC000008A | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ANDX_IRR_IMM(S,N,D) (S & 0xFFFFFFFF)
+
+ #define MPU_ANDX_ISR_INSTR(S,N,D) (0xC000028A | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ANDX_ISR_IMM(S,N,D) (S & 0xFFFFFFFF)
+
+ #define MPU_ANDX_SIR_INSTR(S,N,D) (0xC000028A | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ANDX_SIR_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_ANDX_IRS_INSTR(S,N,D) (0xC000048A | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ANDX_IRS_IMM(S,N,D) (S & 0xFFFFFFFF)
+
+ #define MPU_ANDX_ISS_INSTR(S,N,D) (0xC000068A | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ANDX_ISS_IMM(S,N,D) (S & 0xFFFFFFFF)
+
+ #define MPU_ANDX_RIS_INSTR(S,N,D) (0xC000048A | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ANDX_RIS_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_ANDX_SIS_INSTR(S,N,D) (0xC000068A | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ANDX_SIS_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_BA_I(S) (0x60000000 | ((S & ((1 << 16) - 1)) << 0))
+-
++
+ #define MPU_BAR_R(S) (0x62000000 | ((S & ((1 << 5) - 1)) << 11))
+-
++
+ #define MPU_BAR_S(S) (0x63000000 | ((S & ((1 << 5) - 1)) << 11))
+-
++
+ #define MPU_BBC_RII(S,N,D) (0x78000000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 21)\
+ | ((D & ((1 << 16) - 1)) << 0))
+-
++
+ #define MPU_BBS_RII(S,N,D) (0x7C000000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 21)\
+ | ((D & ((1 << 16) - 1)) << 0))
+-
++
+ #define MPU_BNZ_RI(S,D) (0x74400000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 16) - 1)) << 0))
+-
++
+ #define MPU_BMI_RI(S,D) (0x7FE00000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 16) - 1)) << 0))
+-
++
+ #define MPU_BPL_RI(S,D) (0x7BE00000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 16) - 1)) << 0))
+-
++
+ #define MPU_BZ_RI(S,D) (0x74000000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 16) - 1)) << 0))
+-
++
+ #define MPU_DI() (0x40000001)
+
+ #define MPU_EI() (0x40000003)
+@@ -286,243 +286,243 @@
+ #define MPU_HALT() (0x40000002)
+
+ #define MPU_JIR_I(S) (0x60200000 | ((S & ((1 << 16) - 1)) << 0))
+-
++
+ #define MPU_JIR_R(S) (0x62200000 | ((S & ((1 << 5) - 1)) << 11))
+-
++
+ #define MPU_JIR_S(S) (0x63200000 | ((S & ((1 << 5) - 1)) << 11))
+-
++
+ #define MPU_JNT() (0x61000000)
+
+ #define MPU_JSR_I(S) (0x60400000 | ((S & ((1 << 16) - 1)) << 0))
+-
++
+ #define MPU_JSR_R(S) (0x62400000 | ((S & ((1 << 5) - 1)) << 11))
+-
++
+ #define MPU_JSR_S(S) (0x63400000 | ((S & ((1 << 5) - 1)) << 11))
+-
++
+ #define MPU_LSL_RRR(S,N,D) (0x4000008E | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_LSL_RRS(S,N,D) (0x4000048E | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_LSL_RSR(S,N,D) (0x4000018E | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_LSL_RSS(S,N,D) (0x4000058E | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_LSL_SRR(S,N,D) (0x4000028E | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_LSL_SRS(S,N,D) (0x4000068E | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_LSL_SSR(S,N,D) (0x4000038E | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_LSL_SSS(S,N,D) (0x4000078E | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_LSLQ_RIR(S,N,D) (0x18000000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 16) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_LSR_RRR(S,N,D) (0x4000008F | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_LSR_RRS(S,N,D) (0x4000048F | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_LSR_RSR(S,N,D) (0x4000018F | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_LSR_RSS(S,N,D) (0x4000058F | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_LSR_SRR(S,N,D) (0x4000028F | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_LSR_SRS(S,N,D) (0x4000068F | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_LSR_SSR(S,N,D) (0x4000038F | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_LSR_SSS(S,N,D) (0x4000078F | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_LSRQ_RIR(S,N,D) (0x1C000000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 16) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_LW_IR(S,D) (0x64400000 | ((S & ((1 << 16) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 16))
+-
++
+ #define MPU_LW_IS(S,D) (0x64600000 | ((S & ((1 << 16) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 16))
+-
++
+ #define MPU_LW_RR(S,D) (0x66400000 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 16))
+-
++
+ #define MPU_LW_RS(S,D) (0x66600000 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 16))
+-
++
+ #define MPU_LW_SR(S,D) (0x67400000 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 16))
+-
++
+ #define MPU_LW_SS(S,D) (0x67600000 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 16))
+-
++
+ #define MPU_LW_RIR(S,N,D) (0x66400000 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((N & ((1 << 8) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 16))
+-
++
+ #define MPU_LW_RIS(S,N,D) (0x66600000 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((N & ((1 << 8) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 16))
+-
++
+ #define MPU_LW_SIR(S,N,D) (0x67400000 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((N & ((1 << 8) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 16))
+-
++
+ #define MPU_LW_SIS(S,N,D) (0x67600000 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((N & ((1 << 8) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 16))
+-
++
+ #define MPU_MOVE_RR(S,D) (0x40000081 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_MOVE_RS(S,D) (0x40000481 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_MOVE_SR(S,D) (0x40000181 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_MOVE_SS(S,D) (0x40000581 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_MOVEQ_IR(S,D) (0x24000000 | ((S & ((1 << 16) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_MOVEQ_IS(S,D) (0x2C000000 | ((S & ((1 << 16) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_MOVEX_IR_INSTR(S,D) (0xC0000081 | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_MOVEX_IR_IMM(S,D) (S & 0xFFFFFFFF)
+
+ #define MPU_MOVEX_IS_INSTR(S,D) (0xC0000481 | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_MOVEX_IS_IMM(S,D) (S & 0xFFFFFFFF)
+
+ #define MPU_NOP() (0x40000000)
+
+ #define MPU_NOT_RR(S,D) (0x40100081 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_NOT_RS(S,D) (0x40100481 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_NOT_SR(S,D) (0x40100181 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_NOT_SS(S,D) (0x40100581 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_OR_RRR(S,N,D) (0x4000008B | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_OR_RRS(S,N,D) (0x4000048B | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_OR_RSR(S,N,D) (0x4000018B | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_OR_RSS(S,N,D) (0x4000058B | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_OR_SRR(S,N,D) (0x4000028B | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_OR_SRS(S,N,D) (0x4000068B | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_OR_SSR(S,N,D) (0x4000038B | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_OR_SSS(S,N,D) (0x4000078B | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ORQ_RIR(S,N,D) (0x0C000000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 16) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ORQ_IRR(S,N,D) (0x0C000000 | ((S & ((1 << 16) - 1)) << 0)\
+ | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ORX_RIR_INSTR(S,N,D) (0xC000008B | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ORX_RIR_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_ORX_IRR_INSTR(S,N,D) (0xC000008B | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ORX_IRR_IMM(S,N,D) (S & 0xFFFFFFFF)
+
+ #define MPU_ORX_SIR_INSTR(S,N,D) (0xC000028B | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ORX_SIR_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_ORX_ISR_INSTR(S,N,D) (0xC000028B | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ORX_ISR_IMM(S,N,D) (S & 0xFFFFFFFF)
+
+ #define MPU_ORX_RIS_INSTR(S,N,D) (0xC000048B | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ORX_RIS_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_ORX_IRS_INSTR(S,N,D) (0xC000048B | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ORX_IRS_IMM(S,N,D) (S & 0xFFFFFFFF)
+
+ #define MPU_ORX_SIS_INSTR(S,N,D) (0xC000068B | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ORX_SIS_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_ORX_ISS_INSTR(S,N,D) (0xC000068B | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_ORX_ISS_IMM(S,N,D) (S & 0xFFFFFFFF)
+
+ #define MPU_RET() (0x63003000)
+@@ -531,232 +531,232 @@
+
+ #define MPU_RR_IR(S,D) (0x50000000 | ((S & ((1 << 11) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_RR_SR(S,D) (0x50008000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_RW_RI(S,D) (0x56000000 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 11) - 1)) << 0))
+-
++
+ #define MPU_RW_RS(S,D) (0x57000000 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 16))
+-
++
+ #define MPU_RWQ_II(S,D) (0x58000000 | ((S & ((1 << 16) - 1)) << 11)\
+ | ((D & ((1 << 11) - 1)) << 0))
+-
++
+ #define MPU_RWQ_IS(S,D) (0x55000000 | ((S & ((1 << 16) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 16))
+-
++
+ #define MPU_RWX_II_INSTR(S,D) (0xD4000000 | ((D & ((1 << 11) - 1)) << 0))
+-
++
+ #define MPU_RWX_II_IMM(S,D) (S & 0xFFFFFFFF)
+
+ #define MPU_RWX_IS_INSTR(S,D) (0xD5000000 | ((D & ((1 << 5) - 1)) << 16))
+-
++
+ #define MPU_RWX_IS_IMM(S,D) (S & 0xFFFFFFFF)
+
+ #define MPU_SUB_RRR(S,N,D) (0x4000008D | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_SUB_RRS(S,N,D) (0x4000048D | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_SUB_RSR(S,N,D) (0x4000018D | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_SUB_RSS(S,N,D) (0x4000058D | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_SUB_SRR(S,N,D) (0x4000028D | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_SUB_SRS(S,N,D) (0x4000068D | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_SUB_SSR(S,N,D) (0x4000038D | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_SUB_SSS(S,N,D) (0x4000078D | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_SUBQ_RIR(S,N,D) (0x14000000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 16) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_SUBX_RIR_INSTR(S,N,D) (0xC000008D | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_SUBX_RIR_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_SUBX_SIR_INSTR(S,N,D) (0xC000028D | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_SUBX_SIR_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_SUBX_RIS_INSTR(S,N,D) (0xC000048D | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_SUBX_RIS_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_SUBX_SIS_INSTR(S,N,D) (0xC000068D | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_SUBX_SIS_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_SW_RI(S,D) (0x64000000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 16) - 1)) << 0))
+-
++
+ #define MPU_SW_SI(S,D) (0x64200000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 16) - 1)) << 0))
+-
++
+ #define MPU_SW_RR(S,D) (0x66000000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 11))
+-
++
+ #define MPU_SW_SR(S,D) (0x66200000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 11))
+-
++
+ #define MPU_SW_RS(S,D) (0x67000000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 11))
+-
++
+ #define MPU_SW_SS(S,D) (0x67200000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 11))
+-
++
+ #define MPU_SW_RIR(S,N,D) (0x66000000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 8) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 11))
+-
++
+ #define MPU_SW_SIR(S,N,D) (0x66200000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 8) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 11))
+-
++
+ #define MPU_SW_RIS(S,N,D) (0x67000000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 8) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 11))
+-
++
+ #define MPU_SW_SIS(S,N,D) (0x67200000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 8) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 11))
+-
++
+ #define MPU_SWX_II_INSTR(S,D) (0xE4000000 | ((D & ((1 << 16) - 1)) << 0))
+-
++
+ #define MPU_SWX_II_IMM(S,D) (S & 0xFFFFFFFF)
+
+ #define MPU_SWX_IR_INSTR(S,D) (0xE6000000 | ((D & ((1 << 5) - 1)) << 11))
+-
++
+ #define MPU_SWX_IR_IMM(S,D) (S & 0xFFFFFFFF)
+
+ #define MPU_SWX_IS_INSTR(S,D) (0xE7000000 | ((D & ((1 << 5) - 1)) << 11))
+-
++
+ #define MPU_SWX_IS_IMM(S,D) (S & 0xFFFFFFFF)
+
+ #define MPU_SWX_IIR_INSTR(S,N,D) (0xE6000000 | ((N & ((1 << 8) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 11))
+-
++
+ #define MPU_SWX_IIR_IMM(S,N,D) (S & 0xFFFFFFFF)
+
+ #define MPU_SWX_IIS_INSTR(S,N,D) (0xE7000000 | ((N & ((1 << 8) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 11))
+-
++
+ #define MPU_SWX_IIS_IMM(S,N,D) (S & 0xFFFFFFFF)
+
+ #define MPU_XOR_RRR(S,N,D) (0x40000089 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XOR_RRS(S,N,D) (0x40000489 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XOR_RSR(S,N,D) (0x40000189 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XOR_RSS(S,N,D) (0x40000589 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XOR_SRR(S,N,D) (0x40000289 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XOR_SRS(S,N,D) (0x40000689 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XOR_SSR(S,N,D) (0x40000389 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XOR_SSS(S,N,D) (0x40000789 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XOR_RR(S,D) (0x40000088 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XOR_RS(S,D) (0x40000488 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XOR_SR(S,D) (0x40000188 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XOR_SS(S,D) (0x40000588 | ((S & ((1 << 5) - 1)) << 11)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XORQ_RIR(S,N,D) (0x04000000 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((N & ((1 << 16) - 1)) << 0)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XORQ_IRR(S,N,D) (0x04000000 | ((S & ((1 << 16) - 1)) << 0)\
+ | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XORX_RIR_INSTR(S,N,D) (0xC0000089 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XORX_RIR_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_XORX_IRR_INSTR(S,N,D) (0xC0000089 | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XORX_IRR_IMM(S,N,D) (S & 0xFFFFFFFF)
+
+ #define MPU_XORX_SIR_INSTR(S,N,D) (0xC0000289 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XORX_SIR_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_XORX_ISR_INSTR(S,N,D) (0xC0000289 | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XORX_ISR_IMM(S,N,D) (S & 0xFFFFFFFF)
+
+ #define MPU_XORX_RIS_INSTR(S,N,D) (0xC0000489 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XORX_RIS_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_XORX_IRS_INSTR(S,N,D) (0xC0000489 | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XORX_IRS_IMM(S,N,D) (S & 0xFFFFFFFF)
+
+ #define MPU_XORX_SIS_INSTR(S,N,D) (0xC0000689 | ((S & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XORX_SIS_IMM(S,N,D) (N & 0xFFFFFFFF)
+
+ #define MPU_XORX_ISS_INSTR(S,N,D) (0xC0000689 | ((N & ((1 << 5) - 1)) << 16)\
+ | ((D & ((1 << 5) - 1)) << 21))
+-
++
+ #define MPU_XORX_ISS_IMM(S,N,D) (S & 0xFFFFFFFF)
+
+
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_reg_space.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_reg_space.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_reg_space.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_reg_space.h 2005-04-24 20:31:05.000000000 +0200
+@@ -1,5 +1,5 @@
+ /* Autogenerated Changes here will be lost!
+- * generated by ../gen_sw.pl Mon Apr 11 16:10:18 2005 iop_sw.cfg
++ * generated by ../gen_sw.pl Mon Apr 11 16:10:18 2005 iop_sw.cfg
+ */
+ #define regi_iop_version (regi_iop + 0)
+ #define regi_iop_fifo_in0_extra (regi_iop + 64)
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_sap_in_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_sap_in_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_sap_in_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_sap_in_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/iop_sap_in.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:08:45 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_sap_in_defs.h ../../inst/io_proc/rtl/iop_sap_in.r
+ * id: $Id: iop_sap_in_defs.h,v 1.5 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_sap_out_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_sap_out_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_sap_out_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_sap_out_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/iop_sap_out.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:08:46 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_sap_out_defs.h ../../inst/io_proc/rtl/iop_sap_out.r
+ * id: $Id: iop_sap_out_defs.h,v 1.5 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_scrc_in_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_scrc_in_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_scrc_in_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_scrc_in_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/io_proc/rtl/iop_scrc_in.r
+- * id: iop_scrc_in.r,v 1.10 2005/02/16 09:13:58 niklaspa Exp
++ * id: iop_scrc_in.r,v 1.10 2005/02/16 09:13:58 niklaspa Exp
+ * last modfied: Mon Apr 11 16:08:46 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_scrc_in_defs.h ../../inst/io_proc/rtl/iop_scrc_in.r
+ * id: $Id: iop_scrc_in_defs.h,v 1.4 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_scrc_out_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_scrc_out_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_scrc_out_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_scrc_out_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/io_proc/rtl/iop_scrc_out.r
+- * id: iop_scrc_out.r,v 1.11 2005/02/16 09:13:38 niklaspa Exp
++ * id: iop_scrc_out.r,v 1.11 2005/02/16 09:13:38 niklaspa Exp
+ * last modfied: Mon Apr 11 16:08:46 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_scrc_out_defs.h ../../inst/io_proc/rtl/iop_scrc_out.r
+ * id: $Id: iop_scrc_out_defs.h,v 1.4 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_spu_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_spu_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_spu_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_spu_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/iop_spu.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:08:46 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_spu_defs.h ../../inst/io_proc/rtl/iop_spu.r
+ * id: $Id: iop_spu_defs.h,v 1.5 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_sw_cfg_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_sw_cfg_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_sw_cfg_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_sw_cfg_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/guinness/iop_sw_cfg.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:10:19 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_sw_cfg_defs.h ../../inst/io_proc/rtl/guinness/iop_sw_cfg.r
+ * id: $Id: iop_sw_cfg_defs.h,v 1.4 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_sw_cpu_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_sw_cpu_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_sw_cpu_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_sw_cpu_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/guinness/iop_sw_cpu.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:10:19 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_sw_cpu_defs.h ../../inst/io_proc/rtl/guinness/iop_sw_cpu.r
+ * id: $Id: iop_sw_cpu_defs.h,v 1.4 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_sw_mpu_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_sw_mpu_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_sw_mpu_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_sw_mpu_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/guinness/iop_sw_mpu.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:10:19 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_sw_mpu_defs.h ../../inst/io_proc/rtl/guinness/iop_sw_mpu.r
+ * id: $Id: iop_sw_mpu_defs.h,v 1.4 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_sw_spu_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_sw_spu_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_sw_spu_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_sw_spu_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/io_proc/rtl/guinness/iop_sw_spu.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:10:19 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_sw_spu_defs.h ../../inst/io_proc/rtl/guinness/iop_sw_spu.r
+ * id: $Id: iop_sw_spu_defs.h,v 1.4 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_timer_grp_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_timer_grp_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_timer_grp_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_timer_grp_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/io_proc/rtl/iop_timer_grp.r
+- * id: iop_timer_grp.r,v 1.29 2005/02/16 09:13:27 niklaspa Exp
++ * id: iop_timer_grp.r,v 1.29 2005/02/16 09:13:27 niklaspa Exp
+ * last modfied: Mon Apr 11 16:08:46 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_timer_grp_defs.h ../../inst/io_proc/rtl/iop_timer_grp.r
+ * id: $Id: iop_timer_grp_defs.h,v 1.5 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_trigger_grp_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_trigger_grp_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_trigger_grp_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_trigger_grp_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/io_proc/rtl/iop_trigger_grp.r
+- * id: iop_trigger_grp.r,v 0.20 2005/02/16 09:13:20 niklaspa Exp
++ * id: iop_trigger_grp.r,v 0.20 2005/02/16 09:13:20 niklaspa Exp
+ * last modfied: Mon Apr 11 16:08:46 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_trigger_grp_defs.h ../../inst/io_proc/rtl/iop_trigger_grp.r
+ * id: $Id: iop_trigger_grp_defs.h,v 1.5 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_version_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_version_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/iop/iop_version_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/iop/iop_version_defs.h 2005-04-24 20:31:05.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/io_proc/rtl/guinness/iop_version.r
+- * id: iop_version.r,v 1.3 2004/04/22 12:37:54 jonaso Exp
++ * id: iop_version.r,v 1.3 2004/04/22 12:37:54 jonaso Exp
+ * last modfied: Mon Apr 11 16:08:44 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile iop_version_defs.h ../../inst/io_proc/rtl/guinness/iop_version.r
+ * id: $Id: iop_version_defs.h,v 1.4 2005/04/24 18:31:05 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/irq_nmi_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/irq_nmi_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/irq_nmi_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/irq_nmi_defs.h 2005-04-24 20:30:58.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../mod/irq_nmi.r
+ * id: <not found>
+ * last modfied: Thu Jan 22 09:22:43 2004
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile irq_nmi_defs.h ../../mod/irq_nmi.r
+ * id: $Id: irq_nmi_defs.h,v 1.1 2005/04/24 18:30:58 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/marb_bp_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/marb_bp_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/marb_bp_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/marb_bp_defs.h 2004-06-04 09:15:33.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/memarb/rtl/guinness/marb_top.r
+ * id: <not found>
+ * last modfied: Fri Nov 7 15:36:04 2003
+- *
++ *
+ * by /n/asic/projects/guinness/design/top/inst/rdesc/rdes2c ../../rtl/global.rmap ../../mod/modreg.rmap -base 0xb0000000 ../../inst/memarb/rtl/guinness/marb_top.r
+ * id: $Id: marb_bp_defs.h,v 1.2 2004/06/04 07:15:33 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/marb_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/marb_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/marb_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/marb_defs.h 2005-04-24 20:30:58.000000000 +0200
+@@ -6,7 +6,7 @@
+ * file: ../../inst/memarb/rtl/guinness/marb_top.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:12:16 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile marb_defs.h ../../inst/memarb/rtl/guinness/marb_top.r
+ * id: $Id: marb_defs.h,v 1.3 2005/04/24 18:30:58 starvik Exp $
+ * Any changes here will be lost.
+@@ -265,7 +265,7 @@
+ * file: ../../inst/memarb/rtl/guinness/marb_top.r
+ * id: <not found>
+ * last modfied: Mon Apr 11 16:12:16 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile marb_defs.h ../../inst/memarb/rtl/guinness/marb_top.r
+ * id: $Id: marb_defs.h,v 1.3 2005/04/24 18:30:58 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/pinmux_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/pinmux_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/pinmux_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/pinmux_defs.h 2005-04-24 20:30:58.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/pinmux/rtl/guinness/pinmux_regs.r
+- * id: pinmux_regs.r,v 1.40 2005/02/09 16:22:59 perz Exp
++ * id: pinmux_regs.r,v 1.40 2005/02/09 16:22:59 perz Exp
+ * last modfied: Mon Apr 11 16:09:11 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile pinmux_defs.h ../../inst/pinmux/rtl/guinness/pinmux_regs.r
+ * id: $Id: pinmux_defs.h,v 1.3 2005/04/24 18:30:58 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/reg_map.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/reg_map.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/reg_map.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/reg_map.h 2005-04-24 20:30:58.000000000 +0200
+@@ -4,17 +4,17 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../mod/fakereg.rmap
+- * id: fakereg.rmap,v 1.3 2004/02/11 19:53:22 ronny Exp
++ * id: fakereg.rmap,v 1.3 2004/02/11 19:53:22 ronny Exp
+ * last modified: Wed Feb 11 20:53:25 2004
+ * file: ../../rtl/global.rmap
+- * id: global.rmap,v 1.3 2003/08/18 15:08:23 mikaeln Exp
++ * id: global.rmap,v 1.3 2003/08/18 15:08:23 mikaeln Exp
+ * last modified: Mon Aug 18 17:08:23 2003
+ * file: ../../mod/modreg.rmap
+- * id: modreg.rmap,v 1.31 2004/02/20 15:40:04 stefans Exp
++ * id: modreg.rmap,v 1.31 2004/02/20 15:40:04 stefans Exp
+ * last modified: Fri Feb 20 16:40:04 2004
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c -map -base 0xb0000000 ../../rtl/global.rmap ../../mod/modreg.rmap ../../inst/io_proc/rtl/guinness/iop_top.r ../../inst/memarb/rtl/guinness/marb_top.r ../../mod/fakereg.rmap
+- * id: $Id: reg_map.h,v 1.7 2005/04/24 18:30:58 starvik Exp $
++ * id: $Id: reg_map.h,v 1.7 2005/04/24 18:30:58 starvik Exp $
+ * Any changes here will be lost.
+ *
+ * -*- buffer-read-only: t -*-
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/rt_trace_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/rt_trace_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/rt_trace_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/rt_trace_defs.h 2005-04-24 20:30:58.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/rt_trace/rtl/rt_regs.r
+- * id: rt_regs.r,v 1.18 2005/02/08 15:45:00 stefans Exp
++ * id: rt_regs.r,v 1.18 2005/02/08 15:45:00 stefans Exp
+ * last modfied: Mon Apr 11 16:09:14 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile rt_trace_defs.h ../../inst/rt_trace/rtl/rt_regs.r
+ * id: $Id: rt_trace_defs.h,v 1.1 2005/04/24 18:30:58 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/ser_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/ser_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/ser_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/ser_defs.h 2005-04-24 20:30:58.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/ser/rtl/ser_regs.r
+- * id: ser_regs.r,v 1.23 2005/02/08 13:58:35 perz Exp
++ * id: ser_regs.r,v 1.23 2005/02/08 13:58:35 perz Exp
+ * last modfied: Mon Apr 11 16:09:21 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile ser_defs.h ../../inst/ser/rtl/ser_regs.r
+ * id: $Id: ser_defs.h,v 1.10 2005/04/24 18:30:58 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/sser_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/sser_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/sser_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/sser_defs.h 2005-04-24 20:30:58.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/syncser/rtl/sser_regs.r
+- * id: sser_regs.r,v 1.24 2005/02/11 14:27:36 gunnard Exp
++ * id: sser_regs.r,v 1.24 2005/02/11 14:27:36 gunnard Exp
+ * last modfied: Mon Apr 11 16:09:48 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile sser_defs.h ../../inst/syncser/rtl/sser_regs.r
+ * id: $Id: sser_defs.h,v 1.3 2005/04/24 18:30:58 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/strcop.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/strcop.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/strcop.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/strcop.h 2003-10-22 15:27:12.000000000 +0200
+@@ -54,4 +54,4 @@
+ hash_iv = 1
+ };
+
+-
++
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/strcop_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/strcop_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/strcop_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/strcop_defs.h 2005-04-24 20:30:58.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/strcop/rtl/strcop_regs.r
+- * id: strcop_regs.r,v 1.5 2003/10/15 12:09:45 kriskn Exp
++ * id: strcop_regs.r,v 1.5 2003/10/15 12:09:45 kriskn Exp
+ * last modfied: Mon Apr 11 16:09:38 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile strcop_defs.h ../../inst/strcop/rtl/strcop_regs.r
+ * id: $Id: strcop_defs.h,v 1.7 2005/04/24 18:30:58 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/strmux_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/strmux_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/strmux_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/strmux_defs.h 2005-04-24 20:30:58.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/strmux/rtl/guinness/strmux_regs.r
+- * id: strmux_regs.r,v 1.10 2005/02/10 10:10:46 perz Exp
++ * id: strmux_regs.r,v 1.10 2005/02/10 10:10:46 perz Exp
+ * last modfied: Mon Apr 11 16:09:43 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile strmux_defs.h ../../inst/strmux/rtl/guinness/strmux_regs.r
+ * id: $Id: strmux_defs.h,v 1.5 2005/04/24 18:30:58 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/supp_reg.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/supp_reg.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/supp_reg.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/supp_reg.h 2004-12-17 11:23:03.000000000 +0100
+@@ -37,7 +37,7 @@
+ #define RW_MM_TLB_HI 6
+ #define RW_MM_TLB_PGD 7
+
+-#define BANK_GC 0
++#define BANK_GC 0
+ #define BANK_IM 1
+ #define BANK_DM 2
+ #define BANK_BP 3
+@@ -63,7 +63,7 @@
+ SPEC_REG_WR(SPEC_REG_SRS,b); \
+ NOP(); \
+ NOP(); \
+- NOP();
++ NOP();
+
+ #define SUPP_REG_WR(r,v) \
+ __asm__ __volatile__ ("move %0, $S" STRINGIFYFY(r) "\n\t" \
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/timer_defs.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/timer_defs.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/hwregs/timer_defs.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/hwregs/timer_defs.h 2005-04-24 20:30:58.000000000 +0200
+@@ -4,9 +4,9 @@
+ /*
+ * This file is autogenerated from
+ * file: ../../inst/timer/rtl/timer_regs.r
+- * id: timer_regs.r,v 1.7 2003/03/11 11:16:59 perz Exp
++ * id: timer_regs.r,v 1.7 2003/03/11 11:16:59 perz Exp
+ * last modfied: Mon Apr 11 16:09:53 2005
+- *
++ *
+ * by /n/asic/design/tools/rdesc/src/rdes2c --outfile timer_defs.h ../../inst/timer/rtl/timer_regs.r
+ * id: $Id: timer_defs.h,v 1.6 2005/04/24 18:30:58 starvik Exp $
+ * Any changes here will be lost.
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/ide.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/ide.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/ide.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/ide.h 2005-08-23 11:44:37.000000000 +0200
+@@ -33,7 +33,7 @@
+ * together in a hwgroup, and will serialize accesses. this is good, because
+ * we can't access more than one interface at the same time on ETRAX100.
+ */
+- return ATA_INTR_VECT;
++ return ATA_INTR_VECT;
+ }
+
+ static inline unsigned long ide_default_io_base(int index)
+@@ -44,7 +44,7 @@
+ * so we can use the io_base to remember that bitfield.
+ */
+ ctrl2.sel = index;
+-
++
+ return REG_TYPE_CONV(unsigned long, reg_ata_rw_ctrl2, ctrl2);
+ }
+
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/io.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/io.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/io.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/io.h 2006-12-06 14:17:02.000000000 +0100
+@@ -1,6 +1,7 @@
+ #ifndef _ASM_ARCH_CRIS_IO_H
+ #define _ASM_ARCH_CRIS_IO_H
+
++#include <linux/spinlock.h>
+ #include <asm/arch/hwregs/reg_map.h>
+ #include <asm/arch/hwregs/reg_rdwr.h>
+ #include <asm/arch/hwregs/gio_defs.h>
+@@ -13,10 +14,11 @@
+
+ struct crisv32_ioport
+ {
+- unsigned long* oe;
+- unsigned long* data;
+- unsigned long* data_in;
++ volatile unsigned long* oe;
++ volatile unsigned long* data;
++ volatile unsigned long* data_in;
+ unsigned int pin_count;
++ spinlock_t lock;
+ };
+
+ struct crisv32_iopin
+@@ -34,22 +36,37 @@
+ extern struct crisv32_iopin crisv32_led3_green;
+ extern struct crisv32_iopin crisv32_led3_red;
+
++extern struct crisv32_iopin crisv32_led_net0_green;
++extern struct crisv32_iopin crisv32_led_net0_red;
++extern struct crisv32_iopin crisv32_led_net1_green;
++extern struct crisv32_iopin crisv32_led_net1_red;
++
+ static inline void crisv32_io_set(struct crisv32_iopin* iopin,
+ int val)
+ {
++ long flags;
++ spin_lock_irqsave(&iopin->port->lock, flags);
++
+ if (val)
+ *iopin->port->data |= iopin->bit;
+ else
+ *iopin->port->data &= ~iopin->bit;
++
++ spin_unlock_irqrestore(&iopin->port->lock, flags);
+ }
+
+ static inline void crisv32_io_set_dir(struct crisv32_iopin* iopin,
+ enum crisv32_io_dir dir)
+ {
++ long flags;
++ spin_lock_irqsave(&iopin->port->lock, flags);
++
+ if (dir == crisv32_io_dir_in)
+ *iopin->port->oe &= ~iopin->bit;
+ else
+ *iopin->port->oe |= iopin->bit;
++
++ spin_unlock_irqrestore(&iopin->port->lock, flags);
+ }
+
+ static inline int crisv32_io_rd(struct crisv32_iopin* iopin)
+@@ -60,28 +77,51 @@
+ int crisv32_io_get(struct crisv32_iopin* iopin,
+ unsigned int port, unsigned int pin);
+ int crisv32_io_get_name(struct crisv32_iopin* iopin,
+- char* name);
++ const char* name);
+
+ #define LED_OFF 0x00
+ #define LED_GREEN 0x01
+ #define LED_RED 0x02
+ #define LED_ORANGE (LED_GREEN | LED_RED)
+
+-#define LED_NETWORK_SET(x) \
+- do { \
+- LED_NETWORK_SET_G((x) & LED_GREEN); \
+- LED_NETWORK_SET_R((x) & LED_RED); \
++#if (defined(CONFIG_ETRAX_NBR_LED_GRP_ONE) || defined(CONFIG_ETRAX_NBR_LED_GRP_TWO))
++#define LED_NETWORK_GRP0_SET(x) \
++ do { \
++ LED_NETWORK_GRP0_SET_G((x) & LED_GREEN); \
++ LED_NETWORK_GRP0_SET_R((x) & LED_RED); \
+ } while (0)
++#else
++#define LED_NETWORK_GRP0_SET(x) while (0) {}
++#endif
++
++#define LED_NETWORK_GRP0_SET_G(x) \
++ crisv32_io_set(&crisv32_led_net0_green, !(x));
++
++#define LED_NETWORK_GRP0_SET_R(x) \
++ crisv32_io_set(&crisv32_led_net0_red, !(x));
++
++#if defined(CONFIG_ETRAX_NBR_LED_GRP_TWO)
++#define LED_NETWORK_GRP1_SET(x) \
++ do { \
++ LED_NETWORK_GRP1_SET_G((x) & LED_GREEN); \
++ LED_NETWORK_GRP1_SET_R((x) & LED_RED); \
++ } while (0)
++#else
++#define LED_NETWORK_GRP1_SET(x) while (0) {}
++#endif
++
++#define LED_NETWORK_GRP1_SET_G(x) \
++ crisv32_io_set(&crisv32_led_net1_green, !(x));
++
++#define LED_NETWORK_GRP1_SET_R(x) \
++ crisv32_io_set(&crisv32_led_net1_red, !(x));
++
+ #define LED_ACTIVE_SET(x) \
+ do { \
+ LED_ACTIVE_SET_G((x) & LED_GREEN); \
+ LED_ACTIVE_SET_R((x) & LED_RED); \
+ } while (0)
+
+-#define LED_NETWORK_SET_G(x) \
+- crisv32_io_set(&crisv32_led1_green, !(x));
+-#define LED_NETWORK_SET_R(x) \
+- crisv32_io_set(&crisv32_led1_red, !(x));
+ #define LED_ACTIVE_SET_G(x) \
+ crisv32_io_set(&crisv32_led2_green, !(x));
+ #define LED_ACTIVE_SET_R(x) \
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/irq.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/irq.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/irq.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/irq.h 2006-10-13 14:45:18.000000000 +0200
+@@ -50,7 +50,7 @@
+ #define IRQ_NAME2(nr) nr##_interrupt(void)
+ #define IRQ_NAME(nr) IRQ_NAME2(IRQ##nr)
+
+-/*
++/*
+ * The reason for setting the S-bit when debugging the kernel is that we want
+ * hardware breakpoints to remain active while we are in an exception handler.
+ * Note that we cannot simply copy S1, since we may come here from user-space,
+@@ -86,7 +86,7 @@
+ "moveq 1, $r11\n\t" \
+ "jump ret_from_intr\n\t" \
+ "nop\n\t");
+-/*
++/*
+ * This is subtle. The timer interrupt is crucial and it should not be disabled
+ * for too long. However, if it had been a normal interrupt as per BUILD_IRQ, it
+ * would have been BLOCK'ed, and then softirq's are run before we return here to
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/juliette.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/juliette.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/juliette.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/juliette.h 2004-06-09 11:20:19.000000000 +0200
+@@ -166,7 +166,7 @@
+ #define PA_NULL 0x3fff /* CCD/VIDEO */
+
+ typedef enum {
+- jpeg = 0,
++ jpeg = 0,
+ dummy = 1
+ } request_type;
+
+@@ -176,8 +176,8 @@
+ halfsize = 2,
+ fieldsize = 3
+ } size_type;
+-
+-typedef enum {
++
++typedef enum {
+ min = 0,
+ low = 1,
+ medium = 2,
+@@ -192,14 +192,14 @@
+ q6 = 11
+ } compr_type;
+
+-typedef enum {
++typedef enum {
+ deg_0 = 0,
+ deg_180 = 1,
+ deg_90 = 2,
+ deg_270 = 3
+ } rotation_type;
+
+-typedef enum {
++typedef enum {
+ auto_white = 0,
+ hold = 1,
+ fixed_outdoor = 2,
+@@ -207,12 +207,12 @@
+ fixed_fluor = 4
+ } white_balance_type;
+
+-typedef enum {
++typedef enum {
+ auto_exp = 0,
+ fixed_exp = 1
+ } exposure_type;
+
+-typedef enum {
++typedef enum {
+ no_window = 0,
+ center = 1,
+ top = 2,
+@@ -242,7 +242,7 @@
+ right_align = 2
+ } alignment_type;
+
+-typedef enum {
++typedef enum {
+ off = 0,
+ on = 1,
+ no = 0,
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/mmu.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/mmu.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/mmu.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/mmu.h 2004-11-23 19:36:19.000000000 +0100
+@@ -34,7 +34,7 @@
+ * +-----+------+--------+-------+--------+-------+---------+
+ */
+
+-/*
++/*
+ * Defines for accessing the bits. Also define some synonyms for use with
+ * the software-based defined bits below.
+ */
+@@ -46,7 +46,7 @@
+ #define _PAGE_SILENT_READ (1 << 3) /* Same as above. */
+ #define _PAGE_GLOBAL (1 << 4) /* Global page. */
+
+-/*
++/*
+ * The hardware doesn't care about these bits, but the kernel uses them in
+ * software.
+ */
+@@ -84,9 +84,9 @@
+
+ #define _KERNPG_TABLE (_PAGE_TABLE | _PAGE_KERNEL)
+
+-/* CRISv32 can do page protection for execute.
++/* CRISv32 can do page protection for execute.
+ * Write permissions imply read permissions.
+- * Note that the numbers are in Execute-Write-Read order!
++ * Note that the numbers are in Execute-Write-Read order!
+ */
+ #define __P000 PAGE_NONE
+ #define __P001 PAGE_READONLY
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/offset.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/offset.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/offset.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/offset.h 2005-08-29 09:36:28.000000000 +0200
+@@ -27,7 +27,7 @@
+ #define THREAD_usp 4 /* offsetof(struct thread_struct, usp) */
+ #define THREAD_ccs 8 /* offsetof(struct thread_struct, ccs) */
+
+-#define TASK_pid 149 /* offsetof(struct task_struct, pid) */
++#define TASK_pid 151 /* offsetof(struct task_struct, pid) */
+
+ #define LCLONE_VM 256 /* CLONE_VM */
+ #define LCLONE_UNTRACED 8388608 /* CLONE_UNTRACED */
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/page.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/page.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/page.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/page.h 2006-10-13 14:45:18.000000000 +0200
+@@ -11,7 +11,7 @@
+ * selected bit it's possible to convert between KSEG_x and 0x40000000 where the
+ * DRAM really resides. DRAM is virtually at 0xc.
+ */
+-#ifndef CONFIG_ETRAXFS_SIM
++#ifndef CONFIG_ETRAXFS_SIM
+ #define __pa(x) ((unsigned long)(x) & 0x7fffffff)
+ #define __va(x) ((void *)((unsigned long)(x) | 0x80000000))
+ #else
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/pinmux.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/pinmux.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/pinmux.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/pinmux.h 2005-07-02 14:30:13.000000000 +0200
+@@ -1,7 +1,7 @@
+ #ifndef _ASM_CRIS_ARCH_PINMUX_H
+ #define _ASM_CRIS_ARCH_PINMUX_H
+
+-#define PORT_B 0
++#define PORT_B 0
+ #define PORT_C 1
+ #define PORT_D 2
+ #define PORT_E 3
+@@ -34,6 +34,7 @@
+ int crisv32_pinmux_alloc(int port, int first_pin, int last_pin, enum pin_mode);
+ int crisv32_pinmux_alloc_fixed(enum fixed_function function);
+ int crisv32_pinmux_dealloc(int port, int first_pin, int last_pin);
++int crisv32_pinmux_dealloc_fixed(enum fixed_function function);
+ void crisv32_pinmux_dump(void);
+
+ #endif
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/processor.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/processor.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/processor.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/processor.h 2006-10-13 14:45:18.000000000 +0200
+@@ -19,7 +19,7 @@
+ unsigned long ccs; /* Saved flags register. */
+ };
+
+-/*
++/*
+ * User-space process size. This is hardcoded into a few places, so don't
+ * changed it unless everything's clear!
+ */
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/ptrace.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/ptrace.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/ptrace.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/ptrace.h 2004-10-21 13:51:21.000000000 +0200
+@@ -49,7 +49,7 @@
+ #define CCS_SHIFT 10 /* Shift count for each level in CCS */
+
+ /* pt_regs not only specifices the format in the user-struct during
+- * ptrace but is also the frame format used in the kernel prologue/epilogues
++ * ptrace but is also the frame format used in the kernel prologue/epilogues
+ * themselves
+ */
+
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/spinlock.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/spinlock.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/spinlock.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/spinlock.h 2007-01-09 10:31:32.000000000 +0100
+@@ -19,7 +19,7 @@
+ __asm__ volatile ("move.d %1,%0" \
+ : "=m" (lock->lock) \
+ : "r" (1) \
+- : "memory");
++ : "memory");
+ }
+
+ static inline int _raw_spin_trylock(spinlock_t *lock)
+@@ -80,7 +80,7 @@
+ {
+ unsigned long flags;
+ local_irq_save(flags);
+- _raw_spin_lock(&rw->lock);
++ _raw_spin_lock(&rw->lock);
+
+ rw->counter++;
+
+@@ -92,7 +92,7 @@
+ {
+ unsigned long flags;
+ local_irq_save(flags);
+- _raw_spin_lock(&rw->lock);
++ _raw_spin_lock(&rw->lock);
+
+ rw->counter--;
+
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/system.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/system.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/system.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/system.h 2006-10-13 14:45:18.000000000 +0200
+@@ -39,7 +39,7 @@
+ #define xchg(ptr,x) \
+ ((__typeof__(*(ptr)))__xchg((unsigned long) (x),(ptr),sizeof(*(ptr))))
+
+-#define tas(ptr) (xchg((ptr),1))
++#define tas(ptr) (xchg((ptr),1))
+
+ struct __xchg_dummy { unsigned long a[100]; };
+ #define __xg(x) ((struct __xchg_dummy *)(x))
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/timex.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/timex.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/timex.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/timex.h 2005-08-23 11:44:37.000000000 +0200
+@@ -6,8 +6,8 @@
+ #include <asm/arch/hwregs/timer_defs.h>
+
+ /*
+- * The clock runs at 100MHz, we divide it by 1000000. If you change anything
+- * here you must check time.c as well.
++ * The clock runs at 100MHz, we divide it by 1000000. If you change anything
++ * here you must check time.c as well.
+ */
+
+ #define CLOCK_TICK_RATE 100000000 /* Underlying frequency of the HZ timer */
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/tlb.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/tlb.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/tlb.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/tlb.h 2003-07-02 11:29:45.000000000 +0200
+@@ -2,8 +2,8 @@
+ #define _CRIS_ARCH_TLB_H
+
+ /*
+- * The TLB is a 64-entry cache. Each entry has a 8-bit page_id that is used
+- * to store the "process" it belongs to (=> fast mm context switch). The
++ * The TLB is a 64-entry cache. Each entry has a 8-bit page_id that is used
++ * to store the "process" it belongs to (=> fast mm context switch). The
+ * last page_id is never used so we can make TLB entries that never matches.
+ */
+ #define NUM_TLB_ENTRIES 64
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/uaccess.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/uaccess.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/uaccess.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/uaccess.h 2006-01-04 07:13:04.000000000 +0100
+@@ -1,4 +1,4 @@
+-/*
++/*
+ * Authors: Hans-Peter Nilsson (hp@axis.com)
+ *
+ */
+diff -urN linux-2.6.19.2.old/include/asm-cris/arch-v32/unistd.h linux-2.6.19.2.dev/include/asm-cris/arch-v32/unistd.h
+--- linux-2.6.19.2.old/include/asm-cris/arch-v32/unistd.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/arch-v32/unistd.h 2005-10-31 09:50:44.000000000 +0100
+@@ -16,7 +16,8 @@
+ ".endif\n\t" \
+ "break 13" \
+ : "=r" (__a) \
+- : "r" (__n_)); \
++ : "r" (__n_) \
++ : "memory"); \
+ if (__a >= 0) \
+ return (type) __a; \
+ errno = -__a; \
+@@ -33,7 +34,8 @@
+ ".endif\n\t" \
+ "break 13" \
+ : "=r" (__a) \
+- : "r" (__n_), "0" (__a)); \
++ : "r" (__n_), "0" (__a) \
++ : "memory"); \
+ if (__a >= 0) \
+ return (type) __a; \
+ errno = -__a; \
+@@ -51,7 +53,8 @@
+ ".endif\n\t" \
+ "break 13" \
+ : "=r" (__a) \
+- : "r" (__n_), "0" (__a), "r" (__b)); \
++ : "r" (__n_), "0" (__a), "r" (__b) \
++ : "memory"); \
+ if (__a >= 0) \
+ return (type) __a; \
+ errno = -__a; \
+@@ -70,7 +73,8 @@
+ ".endif\n\t" \
+ "break 13" \
+ : "=r" (__a) \
+- : "r" (__n_), "0" (__a), "r" (__b), "r" (__c)); \
++ : "r" (__n_), "0" (__a), "r" (__b), "r" (__c) \
++ : "memory"); \
+ if (__a >= 0) \
+ return (type) __a; \
+ errno = -__a; \
+@@ -91,12 +95,13 @@
+ "break 13" \
+ : "=r" (__a) \
+ : "r" (__n_), "0" (__a), "r" (__b), \
+- "r" (__c), "r" (__d)); \
++ "r" (__c), "r" (__d)\
++ : "memory"); \
+ if (__a >= 0) \
+ return (type) __a; \
+ errno = -__a; \
+ return (type) -1; \
+-}
++}
+
+ #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
+ type5,arg5) \
+@@ -114,7 +119,8 @@
+ "break 13" \
+ : "=r" (__a) \
+ : "r" (__n_), "0" (__a), "r" (__b), \
+- "r" (__c), "r" (__d), "h" (__e)); \
++ "r" (__c), "r" (__d), "h" (__e) \
++ : "memory"); \
+ if (__a >= 0) \
+ return (type) __a; \
+ errno = -__a; \
+@@ -138,7 +144,8 @@
+ "break 13" \
+ : "=r" (__a) \
+ : "r" (__n_), "0" (__a), "r" (__b), \
+- "r" (__c), "r" (__d), "h" (__e), "x" (__f)); \
++ "r" (__c), "r" (__d), "h" (__e), "x" (__f) \
++ : "memory"); \
+ if (__a >= 0) \
+ return (type) __a; \
+ errno = -__a; \
+diff -urN linux-2.6.19.2.old/include/asm-cris/atomic.h linux-2.6.19.2.dev/include/asm-cris/atomic.h
+--- linux-2.6.19.2.old/include/asm-cris/atomic.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/atomic.h 2006-07-03 15:11:43.000000000 +0200
+@@ -5,6 +5,7 @@
+
+ #include <asm/system.h>
+ #include <asm/arch/atomic.h>
++#include <linux/compiler.h>
+
+ /*
+ * Atomic operations that C can't guarantee us. Useful for
+@@ -89,7 +90,7 @@
+ unsigned long flags;
+ int retval;
+ cris_atomic_save(v, flags);
+- retval = (v->counter)++;
++ retval = ++(v->counter);
+ cris_atomic_restore(v, flags);
+ return retval;
+ }
+@@ -99,7 +100,7 @@
+ unsigned long flags;
+ int retval;
+ cris_atomic_save(v, flags);
+- retval = (v->counter)--;
++ retval = --(v->counter);
+ cris_atomic_restore(v, flags);
+ return retval;
+ }
+diff -urN linux-2.6.19.2.old/include/asm-cris/axisflashmap.h linux-2.6.19.2.dev/include/asm-cris/axisflashmap.h
+--- linux-2.6.19.2.old/include/asm-cris/axisflashmap.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/axisflashmap.h 2006-09-07 14:24:25.000000000 +0200
+@@ -15,18 +15,18 @@
+ /* The partitiontable_head is located at offset +10: */
+ struct partitiontable_head {
+ __u16 magic; /* PARTITION_TABLE_MAGIC */
+- __u16 size; /* Length of ptable block (not header) */
+- __u32 checksum; /* simple longword sum */
++ __u16 size; /* Length of ptable block (entries + end marker) */
++ __u32 checksum; /* simple longword sum, over entries + end marker */
+ };
+
+ /* And followed by partition table entries */
+ struct partitiontable_entry {
+- __u32 offset; /* Offset is relative to the sector the ptable is in */
+- __u32 size;
++ __u32 offset; /* relative to the sector the ptable is in */
++ __u32 size; /* in bytes */
+ __u32 checksum; /* simple longword sum */
+- __u16 type;
+- __u16 flags; /* bit 0: ro/rw = 1/0 */
+- __u32 future0; /* 16 bytes reserved for future use */
++ __u16 type; /* see type codes below */
++ __u16 flags; /* bit 0: ro/rw = 1/0 */
++ __u32 future0; /* 16 bytes reserved for future use */
+ __u32 future1;
+ __u32 future2;
+ __u32 future3;
+@@ -35,10 +35,25 @@
+ #define PARTITIONTABLE_END_MARKER 0xFFFFFFFF
+ #define PARTITIONTABLE_END_MARKER_SIZE 4
+
+-/*#define PARTITION_TYPE_RESCUE 0x0000?*/ /* Not used, maybe it should? */
++#define PARTITIONTABLE_END_PAD 10
++
++/* Complete structure for whole partition table */
++/* note that table may end before CONFIG_ETRAX_PTABLE_ENTRIES by setting
++ * offset of the last entry + 1 to PARTITIONTABLE_END_MARKER.
++ */
++struct partitiontable {
++ __u8 skip[PARTITION_TABLE_OFFSET];
++ struct partitiontable_head head;
++ struct partitiontable_entry entries[];
++};
++
+ #define PARTITION_TYPE_PARAM 0x0001
+ #define PARTITION_TYPE_KERNEL 0x0002
+ #define PARTITION_TYPE_JFFS 0x0003
++#define PARTITION_TYPE_JFFS2 0x0000
++
++#define PARTITION_FLAGS_READONLY_MASK 0x0001
++#define PARTITION_FLAGS_READONLY 0x0001
+
+ /* The master mtd for the entire flash. */
+ extern struct mtd_info* axisflash_mtd;
+diff -urN linux-2.6.19.2.old/include/asm-cris/bitops.h linux-2.6.19.2.dev/include/asm-cris/bitops.h
+--- linux-2.6.19.2.old/include/asm-cris/bitops.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/bitops.h 2007-01-09 10:31:32.000000000 +0100
+@@ -155,7 +155,7 @@
+ #include <asm-generic/bitops/hweight.h>
+ #include <asm-generic/bitops/find.h>
+
+-#include <asm-generic/bitops/ext2-non-atomic.h>
++//#include <asm-generic/bitops/ext2-non-atomic.h>
+
+ #define ext2_set_bit_atomic(l,n,a) test_and_set_bit(n,a)
+ #define ext2_clear_bit_atomic(l,n,a) test_and_clear_bit(n,a)
+diff -urN linux-2.6.19.2.old/include/asm-cris/bug.h linux-2.6.19.2.dev/include/asm-cris/bug.h
+--- linux-2.6.19.2.old/include/asm-cris/bug.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/bug.h 2006-06-21 10:29:15.000000000 +0200
+@@ -1,4 +1,4 @@
+ #ifndef _CRIS_BUG_H
+ #define _CRIS_BUG_H
+-#include <asm-generic/bug.h>
++#include <asm/arch/bug.h>
+ #endif
+diff -urN linux-2.6.19.2.old/include/asm-cris/delay.h linux-2.6.19.2.dev/include/asm-cris/delay.h
+--- linux-2.6.19.2.old/include/asm-cris/delay.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/delay.h 2006-10-11 19:46:19.000000000 +0200
+@@ -13,10 +13,13 @@
+
+ extern unsigned long loops_per_usec; /* arch/cris/mm/init.c */
+
++/* May be defined by arch/delay.h. */
++#ifndef udelay
+ static inline void udelay(unsigned long usecs)
+ {
+ __delay(usecs * loops_per_usec);
+ }
++#endif
+
+ #endif /* defined(_CRIS_DELAY_H) */
+
+diff -urN linux-2.6.19.2.old/include/asm-cris/ethernet.h linux-2.6.19.2.dev/include/asm-cris/ethernet.h
+--- linux-2.6.19.2.old/include/asm-cris/ethernet.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/ethernet.h 2006-07-06 07:58:52.000000000 +0200
+@@ -15,4 +15,7 @@
+ #define SET_ETH_DUPLEX_AUTO SIOCDEVPRIVATE+3 /* Auto neg duplex */
+ #define SET_ETH_DUPLEX_HALF SIOCDEVPRIVATE+4 /* Full duplex */
+ #define SET_ETH_DUPLEX_FULL SIOCDEVPRIVATE+5 /* Half duplex */
++#define SET_ETH_ENABLE_LEDS SIOCDEVPRIVATE+6 /* Enable net LEDs */
++#define SET_ETH_DISABLE_LEDS SIOCDEVPRIVATE+7 /* Disable net LEDs */
++#define SET_ETH_AUTONEG SIOCDEVPRIVATE+8
+ #endif /* _CRIS_ETHERNET_H */
+diff -urN linux-2.6.19.2.old/include/asm-cris/etraxgpio.h linux-2.6.19.2.dev/include/asm-cris/etraxgpio.h
+--- linux-2.6.19.2.old/include/asm-cris/etraxgpio.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/etraxgpio.h 2007-01-09 10:31:32.000000000 +0100
+@@ -16,15 +16,19 @@
+ * For ETRAX FS (ARCH_V32):
+ * /dev/gpioa minor 0, 8 bit GPIO, each bit can change direction
+ * /dev/gpiob minor 1, 18 bit GPIO, each bit can change direction
+- * /dev/gpioc minor 2, 18 bit GPIO, each bit can change direction
+- * /dev/gpiod minor 3, 18 bit GPIO, each bit can change direction
+- * /dev/gpioe minor 4, 18 bit GPIO, each bit can change direction
+- * /dev/leds minor 5, Access to leds depending on kernelconfig
++ * /dev/gpioc minor 3, 18 bit GPIO, each bit can change direction
++ * /dev/gpiod minor 4, 18 bit GPIO, each bit can change direction
++ * /dev/gpioe minor 5, 18 bit GPIO, each bit can change direction
++ * /dev/leds minor 2, Access to leds depending on kernelconfig
+ *
+ */
+ #ifndef _ASM_ETRAXGPIO_H
+ #define _ASM_ETRAXGPIO_H
+
++#ifndef __KERNEL__
++#include <linux/autoconf.h>
++#endif
++
+ /* etraxgpio _IOC_TYPE, bits 8 to 15 in ioctl cmd */
+ #ifdef CONFIG_ETRAX_ARCH_V10
+ #define ETRAXGPIO_IOCTYPE 43
+@@ -42,8 +46,13 @@
+ #define GPIO_MINOR_C 3
+ #define GPIO_MINOR_D 4
+ #define GPIO_MINOR_E 5
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++#define GPIO_MINOR_V 6
++#define GPIO_MINOR_LAST 6
++#else
+ #define GPIO_MINOR_LAST 5
+ #endif
++#endif
+
+ /* supported ioctl _IOC_NR's */
+
+diff -urN linux-2.6.19.2.old/include/asm-cris/fasttimer.h linux-2.6.19.2.dev/include/asm-cris/fasttimer.h
+--- linux-2.6.19.2.old/include/asm-cris/fasttimer.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/fasttimer.h 2006-12-11 12:22:38.000000000 +0100
+@@ -1,9 +1,9 @@
+-/* $Id: fasttimer.h,v 1.3 2004/05/14 10:19:19 starvik Exp $
++/*
+ * linux/include/asm-cris/fasttimer.h
+ *
+ * Fast timers for ETRAX100LX
+ * This may be useful in other OS than Linux so use 2 space indentation...
+- * Copyright (C) 2000, 2002 Axis Communications AB
++ * Copyright (C) 2000-2006 Axis Communications AB
+ */
+ #include <linux/time.h> /* struct timeval */
+ #include <linux/timex.h>
+@@ -12,11 +12,16 @@
+
+ typedef void fast_timer_function_type(unsigned long);
+
++struct fasttime_t {
++ unsigned long tv_jiff; /* jiffies */
++ unsigned long tv_usec; /* microseconds */
++};
++
+ struct fast_timer{ /* Close to timer_list */
+ struct fast_timer *next;
+ struct fast_timer *prev;
+- struct timeval tv_set;
+- struct timeval tv_expires;
++ struct fasttime_t tv_set;
++ struct fasttime_t tv_expires;
+ unsigned long delay_us;
+ fast_timer_function_type *function;
+ unsigned long data;
+@@ -38,6 +43,6 @@
+ void schedule_usleep(unsigned long us);
+
+
+-void fast_timer_init(void);
++int fast_timer_init(void);
+
+ #endif
+diff -urN linux-2.6.19.2.old/include/asm-cris/hardirq.h linux-2.6.19.2.dev/include/asm-cris/hardirq.h
+--- linux-2.6.19.2.old/include/asm-cris/hardirq.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/hardirq.h 2005-10-31 09:50:43.000000000 +0100
+@@ -1,6 +1,7 @@
+ #ifndef __ASM_HARDIRQ_H
+ #define __ASM_HARDIRQ_H
+
++#include <asm/irq.h>
+ #include <linux/threads.h>
+ #include <linux/cache.h>
+
+diff -urN linux-2.6.19.2.old/include/asm-cris/io.h linux-2.6.19.2.dev/include/asm-cris/io.h
+--- linux-2.6.19.2.old/include/asm-cris/io.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/io.h 2006-01-04 07:13:03.000000000 +0100
+@@ -127,8 +127,8 @@
+
+ #define eth_io_copy_and_sum(a,b,c,d) eth_copy_and_sum((a),(void __force *)(b),(c),(d))
+
+-/* The following is junk needed for the arch-independent code but which
+- * we never use in the CRIS port
++/* I/O port access. Normally there is no I/O space on CRIS but when Cardbus/PCI
++ * is enable the request is passed through the bridge.
+ */
+
+ #define IO_SPACE_LIMIT 0xffff
+diff -urN linux-2.6.19.2.old/include/asm-cris/irq_regs.h linux-2.6.19.2.dev/include/asm-cris/irq_regs.h
+--- linux-2.6.19.2.old/include/asm-cris/irq_regs.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/irq_regs.h 2007-01-09 10:31:32.000000000 +0100
+@@ -0,0 +1 @@
++#include <asm-generic/irq_regs.h>
+diff -urN linux-2.6.19.2.old/include/asm-cris/pgtable.h linux-2.6.19.2.dev/include/asm-cris/pgtable.h
+--- linux-2.6.19.2.old/include/asm-cris/pgtable.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/pgtable.h 2007-01-12 15:41:37.000000000 +0100
+@@ -279,7 +279,7 @@
+ #define pte_unmap(pte) do { } while (0)
+ #define pte_unmap_nested(pte) do { } while (0)
+ #define pte_pfn(x) ((unsigned long)(__va((x).pte)) >> PAGE_SHIFT)
+-#define pfn_pte(pfn, prot) __pte((__pa((pfn) << PAGE_SHIFT)) | pgprot_val(prot))
++#define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
+
+ #define pte_ERROR(e) \
+ printk("%s:%d: bad pte %p(%08lx).\n", __FILE__, __LINE__, &(e), pte_val(e))
+diff -urN linux-2.6.19.2.old/include/asm-cris/semaphore-helper.h linux-2.6.19.2.dev/include/asm-cris/semaphore-helper.h
+--- linux-2.6.19.2.old/include/asm-cris/semaphore-helper.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/semaphore-helper.h 2005-08-23 11:44:35.000000000 +0200
+@@ -20,12 +20,12 @@
+ /*
+ * These two _must_ execute atomically wrt each other.
+ */
+-extern inline void wake_one_more(struct semaphore * sem)
++static inline void wake_one_more(struct semaphore * sem)
+ {
+ atomic_inc(&sem->waking);
+ }
+
+-extern inline int waking_non_zero(struct semaphore *sem)
++static inline int waking_non_zero(struct semaphore *sem)
+ {
+ unsigned long flags;
+ int ret = 0;
+@@ -40,7 +40,7 @@
+ return ret;
+ }
+
+-extern inline int waking_non_zero_interruptible(struct semaphore *sem,
++static inline int waking_non_zero_interruptible(struct semaphore *sem,
+ struct task_struct *tsk)
+ {
+ int ret = 0;
+@@ -59,7 +59,7 @@
+ return ret;
+ }
+
+-extern inline int waking_non_zero_trylock(struct semaphore *sem)
++static inline int waking_non_zero_trylock(struct semaphore *sem)
+ {
+ int ret = 1;
+ unsigned long flags;
+diff -urN linux-2.6.19.2.old/include/asm-cris/semaphore.h linux-2.6.19.2.dev/include/asm-cris/semaphore.h
+--- linux-2.6.19.2.old/include/asm-cris/semaphore.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/semaphore.h 2006-01-04 07:13:03.000000000 +0100
+@@ -51,7 +51,6 @@
+ {
+ sema_init(sem, 0);
+ }
+-
+ extern void __down(struct semaphore * sem);
+ extern int __down_interruptible(struct semaphore * sem);
+ extern int __down_trylock(struct semaphore * sem);
+diff -urN linux-2.6.19.2.old/include/asm-cris/smp.h linux-2.6.19.2.dev/include/asm-cris/smp.h
+--- linux-2.6.19.2.old/include/asm-cris/smp.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/smp.h 2005-10-31 09:50:43.000000000 +0100
+@@ -4,7 +4,7 @@
+ #include <linux/cpumask.h>
+
+ extern cpumask_t phys_cpu_present_map;
+-#define cpu_possible_map phys_cpu_present_map
++extern cpumask_t cpu_possible_map;
+
+ #define __smp_processor_id() (current_thread_info()->cpu)
+
+diff -urN linux-2.6.19.2.old/include/asm-cris/sync_serial.h linux-2.6.19.2.dev/include/asm-cris/sync_serial.h
+--- linux-2.6.19.2.old/include/asm-cris/sync_serial.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/sync_serial.h 2005-11-10 15:43:16.000000000 +0100
+@@ -1,9 +1,9 @@
+-/*
++/*
+ * ioctl defines for synchronous serial port driver
+ *
+ * Copyright (c) 2001-2003 Axis Communications AB
+- *
+- * Author: Mikael Starvik
++ *
++ * Author: Mikael Starvik
+ *
+ */
+
+@@ -24,7 +24,7 @@
+ #define SSP150 0
+ #define SSP300 1
+ #define SSP600 2
+-#define SSP1200 3
++#define SSP1200 3
+ #define SSP2400 4
+ #define SSP4800 5
+ #define SSP9600 6
+@@ -67,6 +67,7 @@
+ /* Values for SSP_FRAME_SYNC */
+ #define NORMAL_SYNC 1
+ #define EARLY_SYNC 2
++#define SECOND_WORD_SYNC 0x40000
+
+ #define BIT_SYNC 4
+ #define WORD_SYNC 8
+@@ -86,6 +87,8 @@
+ #define CLOCK_GATED 0x10000
+ #define CLOCK_NOT_GATED 0x20000
+
++
++
+ /* Values for SSP_IPOLARITY and SSP_OPOLARITY */
+ #define CLOCK_NORMAL 1
+ #define CLOCK_INVERT 2
+diff -urN linux-2.6.19.2.old/include/asm-cris/thread_info.h linux-2.6.19.2.dev/include/asm-cris/thread_info.h
+--- linux-2.6.19.2.old/include/asm-cris/thread_info.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/thread_info.h 2006-03-22 11:01:27.000000000 +0100
+@@ -32,6 +32,7 @@
+ unsigned long flags; /* low level flags */
+ __u32 cpu; /* current CPU */
+ int preempt_count; /* 0 => preemptable, <0 => BUG */
++ __u32 tls; /* TLS for this thread */
+
+ mm_segment_t addr_limit; /* thread address space:
+ 0-0xBFFFFFFF for user-thead
+@@ -82,6 +83,7 @@
+ #define TIF_NOTIFY_RESUME 1 /* resumption notification requested */
+ #define TIF_SIGPENDING 2 /* signal pending */
+ #define TIF_NEED_RESCHED 3 /* rescheduling necessary */
++#define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal() */
+ #define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */
+ #define TIF_MEMDIE 17
+
+@@ -89,6 +91,7 @@
+ #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
+ #define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
+ #define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
++#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
+ #define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
+
+ #define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */
+diff -urN linux-2.6.19.2.old/include/asm-cris/unistd.h linux-2.6.19.2.dev/include/asm-cris/unistd.h
+--- linux-2.6.19.2.old/include/asm-cris/unistd.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/include/asm-cris/unistd.h 2007-01-09 10:31:32.000000000 +0100
+@@ -255,6 +255,7 @@
+ #define __NR_io_submit 248
+ #define __NR_io_cancel 249
+ #define __NR_fadvise64 250
++/* 251 is available for reuse (was briefly sys_set_zone_reclaim) */
+ #define __NR_exit_group 252
+ #define __NR_lookup_dcookie 253
+ #define __NR_epoll_create 254
+@@ -292,10 +293,41 @@
+ #define __NR_add_key 286
+ #define __NR_request_key 287
+ #define __NR_keyctl 288
++#define __NR_ioprio_set 289
++#define __NR_ioprio_get 290
++#define __NR_inotify_init 291
++#define __NR_inotify_add_watch 292
++#define __NR_inotify_rm_watch 293
++#define __NR_migrate_pages 294
++#define __NR_openat 295
++#define __NR_mkdirat 296
++#define __NR_mknodat 297
++#define __NR_fchownat 298
++#define __NR_futimesat 299
++#define __NR_fstatat64 300
++#define __NR_unlinkat 301
++#define __NR_renameat 302
++#define __NR_linkat 303
++#define __NR_symlinkat 304
++#define __NR_readlinkat 305
++#define __NR_fchmodat 306
++#define __NR_faccessat 307
++#define __NR_pselect6 308
++#define __NR_ppoll 309
++#define __NR_unshare 310
++#define __NR_set_robust_list 311
++#define __NR_get_robust_list 312
++#define __NR_splice 313
++#define __NR_sync_file_range 314
++#define __NR_tee 315
++#define __NR_vmsplice 316
++#define __NR_move_pages 317
++#define __NR_getcpu 318
++#define __NR_epoll_pwait 319
+
+ #ifdef __KERNEL__
+
+-#define NR_syscalls 289
++#define NR_syscalls 320
+
+ #include <asm/arch/unistd.h>
+
+@@ -321,6 +353,7 @@
+ #define __ARCH_WANT_SYS_SIGPENDING
+ #define __ARCH_WANT_SYS_SIGPROCMASK
+ #define __ARCH_WANT_SYS_RT_SIGACTION
++#define __ARCH_WANT_SYS_RT_SIGSUSPEND
+
+ /*
+ * "Conditional" syscalls
diff --git a/target/linux/etrax-2.6/patches/cris/002-arch-cris.patch b/target/linux/etrax-2.6/patches/cris/002-arch-cris.patch
new file mode 100644
index 0000000000..ee35210cd5
--- /dev/null
+++ b/target/linux/etrax-2.6/patches/cris/002-arch-cris.patch
@@ -0,0 +1,24914 @@
+diff -urN linux-2.6.19.2.old/arch/cris/Kconfig linux-2.6.19.2.dev/arch/cris/Kconfig
+--- linux-2.6.19.2.old/arch/cris/Kconfig 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/Kconfig 2007-01-17 18:17:18.000000000 +0100
+@@ -16,6 +16,10 @@
+ config RWSEM_XCHGADD_ALGORITHM
+ bool
+
++config GENERIC_IOMAP
++ bool
++ default y
++
+ config GENERIC_FIND_NEXT_BIT
+ bool
+ default y
+@@ -42,6 +46,29 @@
+
+ source "fs/Kconfig.binfmt"
+
++config GENERIC_HARDIRQS
++ bool
++ default y
++
++config SMP
++ bool "SMP"
++ help
++ SMP support. Always Say N.
++
++config NR_CPUS
++ int
++ depends on SMP
++ default 2
++
++config SCHED_MC
++ bool "Multi-core scheduler support"
++ depends on SMP
++ default y
++ help
++ Multi-core scheduler support improves the CPU scheduler's decision
++ making when dealing with multi-core CPU chips at a cost of slightly
++ increased overhead in some places. If unsure say N here.
++
+ config ETRAX_CMDLINE
+ string "Kernel command line"
+ default "root=/dev/mtdblock3"
+@@ -70,17 +97,11 @@
+ timers).
+ This is needed if CONFIG_ETRAX_SERIAL_FAST_TIMER is enabled.
+
+-config PREEMPT
+- bool "Preemptible Kernel"
+- help
+- This option reduces the latency of the kernel when reacting to
+- real-time or interactive events by allowing a low priority process to
+- be preempted even if it is in kernel mode executing a system call.
+- This allows applications to run more reliably even when the system is
+- under load.
++config OOM_REBOOT
++ bool "Enable reboot at out of memory"
+
+- Say Y here if you are building a kernel for a desktop, embedded
+- or real-time system. Say N if you are unsure.
++source "kernel/Kconfig.preempt"
++source "kernel/Kconfig.sched"
+
+ source mm/Kconfig
+
+@@ -107,6 +128,16 @@
+ help
+ Support the xsim ETRAX Simulator.
+
++config ETRAXFS
++ bool "ETRAX-FS-V32"
++ help
++ Support CRIS V32.
++
++config ETRAXFS_SIM
++ bool "ETRAX-FS-V32-Simulator"
++ help
++ Support CRIS V32 VCS simualtor.
++
+ endchoice
+
+ config ETRAX_ARCH_V10
+@@ -114,6 +145,11 @@
+ default y if ETRAX100LX || ETRAX100LX_V2
+ default n if !(ETRAX100LX || ETRAX100LX_V2)
+
++config ETRAX_ARCH_V32
++ bool
++ default y if ETRAXFS || ETRAXFS_SIM
++ default n if !(ETRAXFS || ETRAXFS_SIM)
++
+ config ETRAX_DRAM_SIZE
+ int "DRAM size (dec, in MB)"
+ default "8"
+@@ -121,12 +157,23 @@
+ Size of DRAM (decimal in MB) typically 2, 8 or 16.
+
+ config ETRAX_FLASH_BUSWIDTH
+- int "Buswidth of flash in bytes"
++ int "Buswidth of NOR flash in bytes"
+ default "2"
+ help
+- Width in bytes of the Flash bus (1, 2 or 4). Is usually 2.
++ Width in bytes of the NOR Flash bus (1, 2 or 4). Is usually 2.
+
+-source arch/cris/arch-v10/Kconfig
++config ETRAX_NANDFLASH_BUSWIDTH
++ int "Buswidth of NAND flash in bytes"
++ default "1"
++ help
++ Width in bytes of the NAND flash (1 or 2).
++
++config ETRAX_FLASH1_SIZE
++ int "FLASH1 size (dec, in MB. 0 = Unknown)"
++ default "0"
++
++# arch/cris/arch is a symlink to correct arch (arch-v10 or arch-v32)
++source arch/cris/arch/Kconfig
+
+ endmenu
+
+@@ -134,7 +181,8 @@
+
+ # bring in ETRAX built-in drivers
+ menu "Drivers for built-in interfaces"
+-source arch/cris/arch-v10/drivers/Kconfig
++# arch/cris/arch is a symlink to correct arch (arch-v10 or arch-v32)
++source arch/cris/arch/drivers/Kconfig
+
+ endmenu
+
+@@ -181,6 +229,10 @@
+
+ source "sound/Kconfig"
+
++source "drivers/pcmcia/Kconfig"
++
++source "drivers/pci/Kconfig"
++
+ source "drivers/usb/Kconfig"
+
+ source "arch/cris/Kconfig.debug"
+diff -urN linux-2.6.19.2.old/arch/cris/Kconfig.debug linux-2.6.19.2.dev/arch/cris/Kconfig.debug
+--- linux-2.6.19.2.old/arch/cris/Kconfig.debug 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/Kconfig.debug 2005-10-31 09:48:02.000000000 +0100
+@@ -1,14 +1,15 @@
+ menu "Kernel hacking"
+
++source "lib/Kconfig.debug"
++
+ #bool 'Debug kmalloc/kfree' CONFIG_DEBUG_MALLOC
++
+ config PROFILING
+ bool "Kernel profiling support"
+
+ config SYSTEM_PROFILER
+ bool "System profiling support"
+
+-source "lib/Kconfig.debug"
+-
+ config ETRAX_KGDB
+ bool "Use kernel GDB debugger"
+ depends on DEBUG_KERNEL
+diff -urN linux-2.6.19.2.old/arch/cris/Makefile linux-2.6.19.2.dev/arch/cris/Makefile
+--- linux-2.6.19.2.old/arch/cris/Makefile 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/Makefile 2006-11-29 17:05:40.000000000 +0100
+@@ -1,4 +1,4 @@
+-# $Id: Makefile,v 1.28 2005/03/17 10:44:37 larsv Exp $
++# $Id: Makefile,v 1.41 2006/11/29 16:05:40 ricardw Exp $
+ # cris/Makefile
+ #
+ # This file is included by the global makefile so that you can add your own
+@@ -10,14 +10,11 @@
+ # License. See the file "COPYING" in the main directory of this archive
+ # for more details.
+
+-# A bug in ld prevents us from having a (constant-value) symbol in a
+-# "ORIGIN =" or "LENGTH =" expression.
+-
+ arch-y := v10
+ arch-$(CONFIG_ETRAX_ARCH_V10) := v10
+ arch-$(CONFIG_ETRAX_ARCH_V32) := v32
+
+-# No config avaiable for make clean etc
++# No config available for make clean etc
+ ifneq ($(arch-y),)
+ SARCH := arch-$(arch-y)
+ else
+@@ -52,79 +49,58 @@
+ # cris object files path
+ OBJ_ARCH = $(objtree)/arch/$(ARCH)
+
+-target_boot_arch_dir = $(OBJ_ARCH)/$(SARCH)/boot
+-target_boot_dir = $(OBJ_ARCH)/boot
+-src_boot_dir = $(SRC_ARCH)/boot
+-target_compressed_dir = $(OBJ_ARCH)/boot/compressed
+-src_compressed_dir = $(SRC_ARCH)/boot/compressed
+-target_rescue_dir = $(OBJ_ARCH)/boot/rescue
+-src_rescue_dir = $(SRC_ARCH)/boot/rescue
+-
+-export target_boot_arch_dir target_boot_dir src_boot_dir target_compressed_dir src_compressed_dir target_rescue_dir src_rescue_dir
+-
+-vmlinux.bin: vmlinux
+- $(OBJCOPY) $(OBJCOPYFLAGS) vmlinux vmlinux.bin
+-
+-timage: vmlinux.bin
+- cat vmlinux.bin cramfs.img >timage
+-
+-simimage: timage
+- cp vmlinux.bin simvmlinux.bin
+-
+-# the following will remake timage without compiling the kernel
+-# it does of course require that all object files exist...
+-
+-cramfs:
+-## cramfs - Creates a cramfs image
+- mkcramfs -b 8192 -m romfs_meta.txt root cramfs.img
+- cat vmlinux.bin cramfs.img >timage
+-
+-clinux: vmlinux.bin decompress.bin rescue.bin
+-
+-decompress.bin: $(target_boot_dir)
+- @$(MAKE) -f $(src_compressed_dir)/Makefile $(target_compressed_dir)/decompress.bin
+-
+-$(target_rescue_dir)/rescue.bin: $(target_boot_dir)
+- @$(MAKE) -f $(src_rescue_dir)/Makefile $(target_rescue_dir)/rescue.bin
++boot := arch/$(ARCH)/boot
++MACHINE := arch/$(ARCH)/$(SARCH)
+
+-zImage: $(target_boot_dir) vmlinux.bin $(target_rescue_dir)/rescue.bin
+-## zImage - Compressed kernel (gzip)
+- @$(MAKE) -f $(src_boot_dir)/Makefile zImage
++all: zImage
+
+-$(target_boot_dir): $(target_boot_arch_dir)
+- ln -sfn $< $@
+-
+-$(target_boot_arch_dir):
+- mkdir -p $@
+-
+-compressed: zImage
+-
+-archmrproper:
+-archclean:
+- @if [ -d arch/$(ARCH)/boot ]; then \
+- $(MAKE) $(clean)=arch/$(ARCH)/boot ; \
+- fi
+- rm -f timage vmlinux.bin decompress.bin rescue.bin cramfs.img
+- rm -rf $(LD_SCRIPT).tmp
++zImage Image: vmlinux
++ $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
+
+ archprepare: $(SRC_ARCH)/.links $(srctree)/include/asm-$(ARCH)/.arch
+
+ # Create some links to make all tools happy
+ $(SRC_ARCH)/.links:
+ @rm -rf $(SRC_ARCH)/drivers
+- @ln -sfn $(SRC_ARCH)/$(SARCH)/drivers $(SRC_ARCH)/drivers
++ @ln -sfn $(SARCH)/drivers $(SRC_ARCH)/drivers
+ @rm -rf $(SRC_ARCH)/boot
+- @ln -sfn $(SRC_ARCH)/$(SARCH)/boot $(SRC_ARCH)/boot
++ @ln -sfn $(SARCH)/boot $(SRC_ARCH)/boot
+ @rm -rf $(SRC_ARCH)/lib
+- @ln -sfn $(SRC_ARCH)/$(SARCH)/lib $(SRC_ARCH)/lib
+- @ln -sfn $(SRC_ARCH)/$(SARCH) $(SRC_ARCH)/arch
+- @ln -sfn $(SRC_ARCH)/$(SARCH)/vmlinux.lds.S $(SRC_ARCH)/kernel/vmlinux.lds.S
+- @ln -sfn $(SRC_ARCH)/$(SARCH)/kernel/asm-offsets.c $(SRC_ARCH)/kernel/asm-offsets.c
++ @ln -sfn $(SARCH)/lib $(SRC_ARCH)/lib
++ @rm -rf $(SRC_ARCH)/arch
++ @ln -sfn $(SARCH) $(SRC_ARCH)/arch
++ @rm -rf $(SRC_ARCH)/kernel/vmlinux.lds.S
++ @ln -sfn ../$(SARCH)/vmlinux.lds.S $(SRC_ARCH)/kernel/vmlinux.lds.S
++ @rm -rf $(SRC_ARCH)/kernel/asm-offsets.c
++ @ln -sfn ../$(SARCH)/kernel/asm-offsets.c $(SRC_ARCH)/kernel/asm-offsets.c
+ @touch $@
+
+ # Create link to sub arch includes
+ $(srctree)/include/asm-$(ARCH)/.arch: $(wildcard include/config/arch/*.h)
+- @echo ' Making $(srctree)/include/asm-$(ARCH)/arch -> $(srctree)/include/asm-$(ARCH)/$(SARCH) symlink'
++ @echo ' SYMLINK include/asm-$(ARCH)/arch -> include/asm-$(ARCH)/$(SARCH)'
+ @rm -f include/asm-$(ARCH)/arch
+- @ln -sf $(srctree)/include/asm-$(ARCH)/$(SARCH) $(srctree)/include/asm-$(ARCH)/arch
++ @ln -sf $(SARCH) $(srctree)/include/asm-$(ARCH)/arch
+ @touch $@
++
++archclean:
++ $(Q)if [ -e arch/$(ARCH)/boot ]; then \
++ $(MAKE) $(clean)=arch/$(ARCH)/boot; \
++ fi
++
++CLEAN_FILES += \
++ $(MACHINE)/boot/zImage \
++ $(SRC_ARCH)/.links \
++ $(srctree)/include/asm-$(ARCH)/.arch
++
++MRPROPER_FILES += \
++ $(SRC_ARCH)/drivers \
++ $(SRC_ARCH)/boot \
++ $(SRC_ARCH)/lib \
++ $(SRC_ARCH)/arch \
++ $(SRC_ARCH)/kernel/vmlinux.lds.S \
++ $(SRC_ARCH)/kernel/asm-offsets.c
++
++define archhelp
++ echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
++ echo '* Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
++endef
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/README.mm linux-2.6.19.2.dev/arch/cris/arch-v10/README.mm
+--- linux-2.6.19.2.old/arch/cris/arch-v10/README.mm 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/README.mm 2005-08-23 11:44:32.000000000 +0200
+@@ -3,6 +3,9 @@
+ HISTORY:
+
+ $Log: README.mm,v $
++Revision 1.2 2005/08/23 09:44:32 starvik
++extern inline -> static inline. Patch provided by Adrian Bunk <bunk@stusta.de>
++
+ Revision 1.1 2001/12/17 13:59:27 bjornw
+ Initial revision
+
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/boot/Makefile linux-2.6.19.2.dev/arch/cris/arch-v10/boot/Makefile
+--- linux-2.6.19.2.old/arch/cris/arch-v10/boot/Makefile 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/boot/Makefile 2006-11-29 17:05:40.000000000 +0100
+@@ -1,13 +1,21 @@
+ #
+-# arch/cris/boot/Makefile
++# arch/cris/arch-v10/boot/Makefile
+ #
+-target = $(target_boot_dir)
+-src = $(src_boot_dir)
+
+-zImage: compressed/vmlinuz
++OBJCOPY = objcopy-cris
++OBJCOPYFLAGS = -O binary --remove-section=.bss
+
+-compressed/vmlinuz:
+- @$(MAKE) -f $(src)/compressed/Makefile $(target_compressed_dir)/vmlinuz
++subdir- := compressed rescue
++targets := Image
+
+-clean:
+- @$(MAKE) -f $(src)/compressed/Makefile clean
++$(obj)/Image: vmlinux FORCE
++ $(call if_changed,objcopy)
++ @echo ' Kernel: $@ is ready'
++
++$(obj)/compressed/vmlinux: $(obj)/Image FORCE
++ $(Q)$(MAKE) $(build)=$(obj)/compressed $@
++ $(Q)$(MAKE) $(build)=$(obj)/rescue $(obj)/rescue/rescue.bin
++
++$(obj)/zImage: $(obj)/compressed/vmlinux
++ @cp $< $@
++ @echo ' Kernel: $@ is ready'
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/boot/compressed/Makefile linux-2.6.19.2.dev/arch/cris/arch-v10/boot/compressed/Makefile
+--- linux-2.6.19.2.old/arch/cris/arch-v10/boot/compressed/Makefile 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/boot/compressed/Makefile 2006-10-11 17:47:04.000000000 +0200
+@@ -1,45 +1,34 @@
+ #
+-# create a compressed vmlinuz image from the binary vmlinux.bin file
++# arch/cris/arch-v10/boot/compressed/Makefile
+ #
+-target = $(target_compressed_dir)
+-src = $(src_compressed_dir)
+
+ CC = gcc-cris -melf $(LINUXINCLUDE)
+ CFLAGS = -O2
+ LD = ld-cris
++LDFLAGS = -T $(obj)/decompress.ld
++OBJECTS = $(obj)/head.o $(obj)/misc.o
+ OBJCOPY = objcopy-cris
+ OBJCOPYFLAGS = -O binary --remove-section=.bss
+-OBJECTS = $(target)/head.o $(target)/misc.o
+
+-# files to compress
+-SYSTEM = $(objtree)/vmlinux.bin
++quiet_cmd_image = BUILD $@
++cmd_image = cat $(obj)/decompress.bin $(obj)/piggy.gz > $@
+
+-all: $(target_compressed_dir)/vmlinuz
++targets := vmlinux piggy.gz decompress.o decompress.bin
+
+-$(target)/decompress.bin: $(OBJECTS)
+- $(LD) -T $(src)/decompress.ld -o $(target)/decompress.o $(OBJECTS)
+- $(OBJCOPY) $(OBJCOPYFLAGS) $(target)/decompress.o $(target)/decompress.bin
++$(obj)/decompress.o: $(OBJECTS) FORCE
++ $(call if_changed,ld)
+
+-# Create vmlinuz image in top-level build directory
+-$(target_compressed_dir)/vmlinuz: $(target) piggy.img $(target)/decompress.bin
+- @echo " COMPR vmlinux.bin --> vmlinuz"
+- @cat $(target)/decompress.bin piggy.img > $(target_compressed_dir)/vmlinuz
+- @rm -f piggy.img
++$(obj)/decompress.bin: $(obj)/decompress.o FORCE
++ $(call if_changed,objcopy)
+
+-$(target)/head.o: $(src)/head.S
+- $(CC) -D__ASSEMBLY__ -traditional -c $< -o $@
++$(obj)/head.o: $(obj)/head.S .config
++ @$(CC) -D__ASSEMBLY__ -traditional -c $< -o $@
+
+-$(target)/misc.o: $(src)/misc.c
+- $(CC) -D__KERNEL__ -c $< -o $@
++$(obj)/misc.o: $(obj)/misc.c .config
++ @$(CC) -D__KERNEL__ -c $< -o $@
+
+-# gzip the kernel image
+-
+-piggy.img: $(SYSTEM)
+- @cat $(SYSTEM) | gzip -f -9 > piggy.img
+-
+-$(target):
+- mkdir -p $(target)
+-
+-clean:
+- rm -f piggy.img $(objtree)/vmlinuz
++$(obj)/vmlinux: $(obj)/piggy.gz $(obj)/decompress.bin FORCE
++ $(call if_changed,image)
+
++$(obj)/piggy.gz: $(obj)/../Image FORCE
++ $(call if_changed,gzip)
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/boot/compressed/misc.c linux-2.6.19.2.dev/arch/cris/arch-v10/boot/compressed/misc.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/boot/compressed/misc.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/boot/compressed/misc.c 2006-10-13 14:43:10.000000000 +0200
+@@ -1,7 +1,7 @@
+ /*
+ * misc.c
+ *
+- * $Id: misc.c,v 1.6 2003/10/27 08:04:31 starvik Exp $
++ * $Id: misc.c,v 1.7 2006/10/13 12:43:10 starvik Exp $
+ *
+ * This is a collection of several routines from gzip-1.0.3
+ * adapted for Linux.
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/boot/rescue/Makefile linux-2.6.19.2.dev/arch/cris/arch-v10/boot/rescue/Makefile
+--- linux-2.6.19.2.old/arch/cris/arch-v10/boot/rescue/Makefile 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/boot/rescue/Makefile 2006-11-30 11:42:39.000000000 +0100
+@@ -1,56 +1,38 @@
+ #
+-# Makefile for rescue code
++# Makefile for rescue (bootstrap) code
+ #
+-target = $(target_rescue_dir)
+-src = $(src_rescue_dir)
+
+ CC = gcc-cris -mlinux $(LINUXINCLUDE)
+ CFLAGS = -O2
+-LD = gcc-cris -mlinux -nostdlib
++AFLAGS = -traditional
++LD = gcc-cris -mlinux -nostdlib
++LDFLAGS = -T $(obj)/rescue.ld
+ OBJCOPY = objcopy-cris
+ OBJCOPYFLAGS = -O binary --remove-section=.bss
++obj-y = head.o
++OBJECT = $(obj)/$(obj-y)
+
+-all: $(target)/rescue.bin $(target)/testrescue.bin $(target)/kimagerescue.bin
++targets := rescue.o rescue.bin
+
+-$(target)/rescue.bin: $(target) $(target)/head.o
+- $(LD) -T $(src)/rescue.ld -o $(target)/rescue.o $(target)/head.o
+- $(OBJCOPY) $(OBJCOPYFLAGS) $(target)/rescue.o $(target)/rescue.bin
+-# Place a copy in top-level build directory
+- cp -p $(target)/rescue.bin $(objtree)
++$(obj)/rescue.o: $(OBJECT) FORCE
++ $(call if_changed,ld)
+
+-$(target)/testrescue.bin: $(target) $(target)/testrescue.o
+- $(OBJCOPY) $(OBJCOPYFLAGS) $(target)/testrescue.o tr.bin
++$(obj)/rescue.bin: $(obj)/rescue.o FORCE
++ $(call if_changed,objcopy)
++ cp -p $(obj)/rescue.bin $(objtree)
++
++$(obj)/testrescue.bin: $(obj)/testrescue.o
++ $(OBJCOPY) $(OBJCOPYFLAGS) $(obj)/testrescue.o tr.bin
+ # Pad it to 784 bytes
+ dd if=/dev/zero of=tmp2423 bs=1 count=784
+ cat tr.bin tmp2423 >testrescue_tmp.bin
+- dd if=testrescue_tmp.bin of=$(target)/testrescue.bin bs=1 count=784
++ dd if=testrescue_tmp.bin of=$(obj)/testrescue.bin bs=1 count=784
+ rm tr.bin tmp2423 testrescue_tmp.bin
+
+-$(target)/kimagerescue.bin: $(target) $(target)/kimagerescue.o
+- $(OBJCOPY) $(OBJCOPYFLAGS) $(target)/kimagerescue.o ktr.bin
++$(obj)/kimagerescue.bin: $(obj)/kimagerescue.o
++ $(OBJCOPY) $(OBJCOPYFLAGS) $(obj)/kimagerescue.o ktr.bin
+ # Pad it to 784 bytes, that's what the rescue loader expects
+ dd if=/dev/zero of=tmp2423 bs=1 count=784
+ cat ktr.bin tmp2423 >kimagerescue_tmp.bin
+- dd if=kimagerescue_tmp.bin of=$(target)/kimagerescue.bin bs=1 count=784
++ dd if=kimagerescue_tmp.bin of=$(obj)/kimagerescue.bin bs=1 count=784
+ rm ktr.bin tmp2423 kimagerescue_tmp.bin
+-
+-$(target):
+- mkdir -p $(target)
+-
+-$(target)/head.o: $(src)/head.S
+- $(CC) -D__ASSEMBLY__ -traditional -c $< -o $*.o
+-
+-$(target)/testrescue.o: $(src)/testrescue.S
+- $(CC) -D__ASSEMBLY__ -traditional -c $< -o $*.o
+-
+-$(target)/kimagerescue.o: $(src)/kimagerescue.S
+- $(CC) -D__ASSEMBLY__ -traditional -c $< -o $*.o
+-
+-clean:
+- rm -f $(target)/*.o $(target)/*.bin
+-
+-fastdep:
+-
+-modules:
+-
+-modules-install:
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/boot/rescue/head.S linux-2.6.19.2.dev/arch/cris/arch-v10/boot/rescue/head.S
+--- linux-2.6.19.2.old/arch/cris/arch-v10/boot/rescue/head.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/boot/rescue/head.S 2006-10-13 14:43:10.000000000 +0200
+@@ -1,4 +1,4 @@
+-/* $Id: head.S,v 1.7 2005/03/07 12:11:06 starvik Exp $
++/* $Id: head.S,v 1.9 2006/10/13 12:43:10 starvik Exp $
+ *
+ * Rescue code, made to reside at the beginning of the
+ * flash-memory. when it starts, it checks a partition
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/boot/rescue/kimagerescue.S linux-2.6.19.2.dev/arch/cris/arch-v10/boot/rescue/kimagerescue.S
+--- linux-2.6.19.2.old/arch/cris/arch-v10/boot/rescue/kimagerescue.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/boot/rescue/kimagerescue.S 2006-11-29 17:05:41.000000000 +0100
+@@ -1,4 +1,4 @@
+-/* $Id: kimagerescue.S,v 1.1 2001/12/17 13:59:27 bjornw Exp $
++/* $Id: kimagerescue.S,v 1.3 2006/11/29 16:05:41 ricardw Exp $
+ *
+ * Rescue code to be prepended on a kimage and copied to the
+ * rescue serial port.
+@@ -7,7 +7,7 @@
+ */
+
+ #define ASSEMBLER_MACROS_ONLY
+-#include <asm/sv_addr_ag.h>
++#include <asm/arch/sv_addr_ag.h>
+
+ #define CODE_START 0x40004000
+ #define CODE_LENGTH 784
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/boot/rescue/testrescue.S linux-2.6.19.2.dev/arch/cris/arch-v10/boot/rescue/testrescue.S
+--- linux-2.6.19.2.old/arch/cris/arch-v10/boot/rescue/testrescue.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/boot/rescue/testrescue.S 2006-11-29 17:05:41.000000000 +0100
+@@ -1,4 +1,4 @@
+-/* $Id: testrescue.S,v 1.1 2001/12/17 13:59:27 bjornw Exp $
++/* $Id: testrescue.S,v 1.2 2006/11/29 16:05:41 ricardw Exp $
+ *
+ * Simple testcode to download by the rescue block.
+ * Just lits some LEDs to show it was downloaded correctly.
+@@ -7,7 +7,7 @@
+ */
+
+ #define ASSEMBLER_MACROS_ONLY
+-#include <asm/sv_addr_ag.h>
++#include <asm/arch/sv_addr_ag.h>
+
+ .text
+
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/defconfig linux-2.6.19.2.dev/arch/cris/arch-v10/defconfig
+--- linux-2.6.19.2.old/arch/cris/arch-v10/defconfig 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/defconfig 2006-01-03 15:48:23.000000000 +0100
+@@ -106,7 +106,6 @@
+ CONFIG_ETRAX_I2C_USES_PB_NOT_PB_I2C=y
+ # CONFIG_ETRAX_I2C_EEPROM is not set
+ CONFIG_ETRAX_GPIO=y
+-CONFIG_ETRAX_PA_BUTTON_BITMASK=02
+ CONFIG_ETRAX_PA_CHANGEABLE_DIR=00
+ CONFIG_ETRAX_PA_CHANGEABLE_BITS=FF
+ CONFIG_ETRAX_PB_CHANGEABLE_DIR=00
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/drivers/Kconfig linux-2.6.19.2.dev/arch/cris/arch-v10/drivers/Kconfig
+--- linux-2.6.19.2.old/arch/cris/arch-v10/drivers/Kconfig 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/drivers/Kconfig 2007-01-09 10:29:18.000000000 +0100
+@@ -6,6 +6,12 @@
+ This option enables the ETRAX 100LX built-in 10/100Mbit Ethernet
+ controller.
+
++config ETRAX_NO_PHY
++ bool "PHY not present"
++ depends on ETRAX_ETHERNET
++ help
++ Enable if PHY is not present.
++
+ choice
+ prompt "Network LED behavior"
+ depends on ETRAX_ETHERNET
+@@ -90,7 +96,7 @@
+
+ config ETRAX_SERIAL_PORT0_DMA6_OUT
+ bool "DMA 6"
+-
++ depends on !ETRAX_DEBUG_PORT0
+ endchoice
+
+ choice
+@@ -103,7 +109,7 @@
+
+ config ETRAX_SERIAL_PORT0_DMA7_IN
+ bool "DMA 7"
+-
++ depends on !ETRAX_DEBUG_PORT0
+ endchoice
+
+ choice
+@@ -204,7 +210,7 @@
+
+ config ETRAX_SERIAL_PORT1_DMA8_OUT
+ bool "DMA 8"
+-
++ depends on !ETRAX_DEBUG_PORT1
+ endchoice
+
+ choice
+@@ -217,7 +223,7 @@
+
+ config ETRAX_SERIAL_PORT1_DMA9_IN
+ bool "DMA 9"
+-
++ depends on !ETRAX_DEBUG_PORT1
+ endchoice
+
+ choice
+@@ -321,7 +327,7 @@
+
+ config ETRAX_SERIAL_PORT2_DMA2_OUT
+ bool "DMA 2"
+-
++ depends on !ETRAX_DEBUG_PORT2
+ endchoice
+
+ choice
+@@ -334,7 +340,7 @@
+
+ config ETRAX_SERIAL_PORT2_DMA3_IN
+ bool "DMA 3"
+-
++ depends on !ETRAX_DEBUG_PORT2
+ endchoice
+
+ choice
+@@ -435,7 +441,7 @@
+
+ config ETRAX_SERIAL_PORT3_DMA4_OUT
+ bool "DMA 4"
+-
++ depends on !ETRAX_DEBUG_PORT3
+ endchoice
+
+ choice
+@@ -448,7 +454,7 @@
+
+ config ETRAX_SERIAL_PORT3_DMA5_IN
+ bool "DMA 5"
+-
++ depends on !ETRAX_DEBUG_PORT3
+ endchoice
+
+ choice
+@@ -514,8 +520,7 @@
+ bool "RS-485 support"
+ depends on ETRAX_SERIAL
+ help
+- Enables support for RS-485 serial communication. For a primer on
+- RS-485, see <http://www.hw.cz/english/docs/rs485/rs485.html>.
++ Enables support for RS-485 serial communication.
+
+ config ETRAX_RS485_ON_PA
+ bool "RS-485 mode on PA"
+@@ -541,6 +546,27 @@
+ loopback. Not all products are able to do this in software only.
+ Axis 2400/2401 must disable receiver.
+
++config ETRAX_SYNCHRONOUS_SERIAL
++ bool "Synchronous serial port driver"
++ help
++ Select this to enable the synchronous serial port driver.
++
++config ETRAX_SYNCHRONOUS_SERIAL_PORT0
++ bool "Synchronous serial port 0 enabled (sser1)"
++ depends on ETRAX_SYNCHRONOUS_SERIAL
++
++config ETRAX_SYNCHRONOUS_SERIAL0_DMA
++ bool "Use DMA for synchronous serial port 0"
++ depends on ETRAX_SYNCHRONOUS_SERIAL_PORT0
++
++config ETRAX_SYNCHRONOUS_SERIAL_PORT1
++ bool "Synchronous serial port 1 enabled (sser3)"
++ depends on ETRAX_SYNCHRONOUS_SERIAL
++
++config ETRAX_SYNCHRONOUS_SERIAL1_DMA
++ bool "Use DMA for synchronous serial port 1"
++ depends on ETRAX_SYNCHRONOUS_SERIAL_PORT1
++
+ config ETRAX_IDE
+ bool "ATA/IDE support"
+ select IDE
+@@ -604,8 +630,7 @@
+ select MTD
+ select MTD_CFI
+ select MTD_CFI_AMDSTD
+- select MTD_OBSOLETE_CHIPS
+- select MTD_AMDSTD
++ select MTD_JEDECPROBE
+ select MTD_CHAR
+ select MTD_BLOCK
+ select MTD_PARTITIONS
+@@ -615,6 +640,15 @@
+ This option enables MTD mapping of flash devices. Needed to use
+ flash memories. If unsure, say Y.
+
++config ETRAX_AXISFLASHMAP_MTD0WHOLE
++ bool "MTD0 is whole boot flash device"
++ depends on ETRAX_AXISFLASHMAP
++ default N
++ help
++ When this option is not set, mtd0 refers to the first partition
++ on the boot flash device. When set, mtd0 refers to the whole
++ device, with mtd1 referring to the first partition etc.
++
+ config ETRAX_PTABLE_SECTOR
+ int "Byte-offset of partition table sector"
+ depends on ETRAX_AXISFLASHMAP
+@@ -715,19 +749,6 @@
+ Remember that you need to setup the port directions appropriately in
+ the General configuration.
+
+-config ETRAX_PA_BUTTON_BITMASK
+- hex "PA-buttons bitmask"
+- depends on ETRAX_GPIO
+- default "02"
+- help
+- This is a bitmask with information about what bits on PA that
+- are used for buttons.
+- Most products has a so called TEST button on PA1, if that's true
+- use 02 here.
+- Use 00 if there are no buttons on PA.
+- If the bitmask is <> 00 a button driver will be included in the gpio
+- driver. ETRAX general I/O support must be enabled.
+-
+ config ETRAX_PA_CHANGEABLE_DIR
+ hex "PA user changeable dir mask"
+ depends on ETRAX_GPIO
+@@ -768,6 +789,40 @@
+ Bit set = changeable.
+ You probably want 00 here.
+
++config ETRAX_DEF_R_PORT_G_DIR
++ bool "Port G Output"
++ help
++ CONFIG_ETRAX_DEF_R_PORT_G_DIR:
++ Set the direction of specified pins to output.
++
++config ETRAX_DEF_R_PORT_G0_DIR_OUT
++ bool "G0"
++ depends on ETRAX_DEF_R_PORT_G_DIR
++ help
++ CONFIG_ETRAX_DEF_R_PORT_G0_DIR_OUT:
++ Set G0 to output.
++
++config ETRAX_DEF_R_PORT_G8_15_DIR_OUT
++ bool "G8-G15"
++ depends on ETRAX_DEF_R_PORT_G_DIR
++ help
++ CONFIG_ETRAX_DEF_R_PORT_G8_15_DIR_OUT:
++ Set G8-G15 to output.
++
++config ETRAX_DEF_R_PORT_G16_23_DIR_OUT
++ bool "G16-G23"
++ depends on ETRAX_DEF_R_PORT_G_DIR
++ help
++ CONFIG_ETRAX_DEF_R_PORT_G16_23_DIR_OUT:
++ Set G16-G23 to output.
++
++config ETRAX_DEF_R_PORT_G24_DIR_OUT
++ bool "G24"
++ depends on ETRAX_DEF_R_PORT_G_DIR
++ help
++ CONFIG_ETRAX_DEF_R_PORT_G24_DIR_OUT:
++ Set G24 to output.
++
+ config ETRAX_RTC
+ bool "Real Time Clock support"
+ depends on ETRAX_ARCH_V10
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/drivers/Makefile linux-2.6.19.2.dev/arch/cris/arch-v10/drivers/Makefile
+--- linux-2.6.19.2.old/arch/cris/arch-v10/drivers/Makefile 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/drivers/Makefile 2005-12-12 10:05:46.000000000 +0100
+@@ -8,5 +8,5 @@
+ obj-$(CONFIG_ETRAX_GPIO) += gpio.o
+ obj-$(CONFIG_ETRAX_DS1302) += ds1302.o
+ obj-$(CONFIG_ETRAX_PCF8563) += pcf8563.o
+-
++obj-$(CONFIG_ETRAX_SYNCHRONOUS_SERIAL) += sync_serial.o
+
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/drivers/axisflashmap.c linux-2.6.19.2.dev/arch/cris/arch-v10/drivers/axisflashmap.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/drivers/axisflashmap.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/drivers/axisflashmap.c 2006-11-22 13:26:55.000000000 +0100
+@@ -11,6 +11,26 @@
+ * partition split defined below.
+ *
+ * $Log: axisflashmap.c,v $
++ * Revision 1.17 2006/11/22 12:26:55 ricardw
++ * Added CONFIG_ETRAX_AXISFLASHMAP_MTD0WHOLE option which when enabled puts mtd0
++ * as whole device, with first partition at mtd1, etc.
++ *
++ * Revision 1.16 2006/10/30 15:17:57 pkj
++ * Avoid a compiler warning.
++ *
++ * Revision 1.15 2006/10/13 12:43:10 starvik
++ * Merge of 2.6.18
++ *
++ * Revision 1.14 2006/08/30 13:20:00 karljope
++ * Do not use deprecated amd_flash to probe flash memory.
++ * Probe for flash chip with CFI first and if no chip was found try jedec_probe.
++ *
++ * Revision 1.13 2006/01/04 06:09:45 starvik
++ * Merge of Linux 2.6.15
++ *
++ * Revision 1.12 2005/06/21 09:13:06 starvik
++ * Change const char* to const char[] to save space (from domen@coderock.org).
++ *
+ * Revision 1.11 2004/11/15 10:27:14 starvik
+ * Corrected typo (Thanks to Milton Miller <miltonm@bga.com>).
+ *
+@@ -300,6 +320,15 @@
+ },
+ };
+
++#ifdef CONFIG_ETRAX_AXISFLASHMAP_MTD0WHOLE
++/* Main flash device */
++static struct mtd_partition main_partition = {
++ .name = "main",
++ .size = 0,
++ .offset = 0
++};
++#endif
++
+ /*
+ * Probe a chip select for AMD-compatible (JEDEC) or CFI-compatible flash
+ * chips in that order (because the amd_flash-driver is faster).
+@@ -312,12 +341,12 @@
+ "%s: Probing a 0x%08lx bytes large window at 0x%08lx.\n",
+ map_cs->name, map_cs->size, map_cs->map_priv_1);
+
+-#ifdef CONFIG_MTD_AMDSTD
+- mtd_cs = do_map_probe("amd_flash", map_cs);
+-#endif
+ #ifdef CONFIG_MTD_CFI
++ mtd_cs = do_map_probe("cfi_probe", map_cs);
++#endif
++#ifdef CONFIG_MTD_JEDECPROBE
+ if (!mtd_cs) {
+- mtd_cs = do_map_probe("cfi_probe", map_cs);
++ mtd_cs = do_map_probe("jedec_probe", map_cs);
+ }
+ #endif
+
+@@ -396,7 +425,7 @@
+ struct partitiontable_head *ptable_head = NULL;
+ struct partitiontable_entry *ptable;
+ int use_default_ptable = 1; /* Until proven otherwise. */
+- const char *pmsg = " /dev/flash%d at 0x%08x, size 0x%08x\n";
++ const char pmsg[] = " /dev/flash%d at 0x%08x, size 0x%08x\n";
+
+ if (!(mymtd = flash_probe())) {
+ /* There's no reason to use this module if no flash chip can
+@@ -491,6 +520,16 @@
+ pidx++;
+ }
+
++#ifdef CONFIG_ETRAX_AXISFLASHMAP_MTD0WHOLE
++ if (mymtd) {
++ main_partition.size = mymtd->size;
++ err = add_mtd_partitions(mymtd, &main_partition, 1);
++ if (err)
++ panic("axisflashmap: Could not initialize "
++ "partition for whole main mtd device!\n");
++ }
++#endif
++
+ if (mymtd) {
+ if (use_default_ptable) {
+ printk(KERN_INFO " Using default partition table.\n");
+@@ -524,7 +563,7 @@
+ }
+
+ printk(KERN_INFO " Adding RAM partition for romfs image:\n");
+- printk(pmsg, pidx, romfs_start, romfs_length);
++ printk(pmsg, pidx, (unsigned)romfs_start, (unsigned)romfs_length);
+
+ err = mtdram_init_device(mtd_ram, (void*)romfs_start,
+ romfs_length, "romfs");
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/drivers/ds1302.c linux-2.6.19.2.dev/arch/cris/arch-v10/drivers/ds1302.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/drivers/ds1302.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/drivers/ds1302.c 2006-10-27 16:31:23.000000000 +0200
+@@ -6,136 +6,9 @@
+ *!
+ *! Functions exported: ds1302_readreg, ds1302_writereg, ds1302_init
+ *!
+-*! $Log: ds1302.c,v $
+-*! Revision 1.18 2005/01/24 09:11:26 mikaelam
+-*! Minor changes to get DS1302 RTC chip driver to work
+-*!
+-*! Revision 1.17 2005/01/05 06:11:22 starvik
+-*! No need to do local_irq_disable after local_irq_save.
+-*!
+-*! Revision 1.16 2004/12/13 12:21:52 starvik
+-*! Added I/O and DMA allocators from Linux 2.4
+-*!
+-*! Revision 1.14 2004/08/24 06:48:43 starvik
+-*! Whitespace cleanup
+-*!
+-*! Revision 1.13 2004/05/28 09:26:59 starvik
+-*! Modified I2C initialization to work in 2.6.
+-*!
+-*! Revision 1.12 2004/05/14 07:58:03 starvik
+-*! Merge of changes from 2.4
+-*!
+-*! Revision 1.10 2004/02/04 09:25:12 starvik
+-*! Merge of Linux 2.6.2
+-*!
+-*! Revision 1.9 2003/07/04 08:27:37 starvik
+-*! Merge of Linux 2.5.74
+-*!
+-*! Revision 1.8 2003/04/09 05:20:47 starvik
+-*! Merge of Linux 2.5.67
+-*!
+-*! Revision 1.6 2003/01/09 14:42:51 starvik
+-*! Merge of Linux 2.5.55
+-*!
+-*! Revision 1.4 2002/12/11 13:13:57 starvik
+-*! Added arch/ to v10 specific includes
+-*! Added fix from Linux 2.4 in serial.c (flush_to_flip_buffer)
+-*!
+-*! Revision 1.3 2002/11/20 11:56:10 starvik
+-*! Merge of Linux 2.5.48
+-*!
+-*! Revision 1.2 2002/11/18 13:16:06 starvik
+-*! Linux 2.5 port of latest 2.4 drivers
+-*!
+-*! Revision 1.15 2002/10/11 16:14:33 johana
+-*! Added CONFIG_ETRAX_DS1302_TRICKLE_CHARGE and initial setting of the
+-*! trcklecharge register.
+-*!
+-*! Revision 1.14 2002/10/10 12:15:38 magnusmn
+-*! Added support for having the RST signal on bit g0
+-*!
+-*! Revision 1.13 2002/05/29 15:16:08 johana
+-*! Removed unused variables.
+-*!
+-*! Revision 1.12 2002/04/10 15:35:25 johana
+-*! Moved probe function closer to init function and marked it __init.
+-*!
+-*! Revision 1.11 2001/06/14 12:35:52 jonashg
+-*! The ATA hack is back. It is unfortunately the only way to set g27 to output.
+-*!
+-*! Revision 1.9 2001/06/14 10:00:14 jonashg
+-*! No need for tempudelay to be inline anymore (had to adjust the usec to
+-*! loops conversion because of this to make it slow enough to be a udelay).
+-*!
+-*! Revision 1.8 2001/06/14 08:06:32 jonashg
+-*! Made tempudelay delay usecs (well, just a tad more).
+-*!
+-*! Revision 1.7 2001/06/13 14:18:11 jonashg
+-*! Only allow processes with SYS_TIME capability to set time and charge.
+-*!
+-*! Revision 1.6 2001/06/12 15:22:07 jonashg
+-*! * Made init function __init.
+-*! * Parameter to out_byte() is unsigned char.
+-*! * The magic number 42 has got a name.
+-*! * Removed comment about /proc (nothing is exported there).
+-*!
+-*! Revision 1.5 2001/06/12 14:35:13 jonashg
+-*! Gave the module a name and added it to printk's.
+-*!
+-*! Revision 1.4 2001/05/31 14:53:40 jonashg
+-*! Made tempudelay() inline so that the watchdog doesn't reset (see
+-*! function comment).
+-*!
+-*! Revision 1.3 2001/03/26 16:03:06 bjornw
+-*! Needs linux/config.h
+-*!
+-*! Revision 1.2 2001/03/20 19:42:00 bjornw
+-*! Use the ETRAX prefix on the DS1302 options
+-*!
+-*! Revision 1.1 2001/03/20 09:13:50 magnusmn
+-*! Linux 2.4 port
+-*!
+-*! Revision 1.10 2000/07/05 15:38:23 bjornw
+-*! Dont update kernel time when a RTC_SET_TIME is done
+-*!
+-*! Revision 1.9 2000/03/02 15:42:59 macce
+-*! * Hack to make RTC work on all 2100/2400
+-*!
+-*! Revision 1.8 2000/02/23 16:59:18 torbjore
+-*! added setup of R_GEN_CONFIG when RTC is connected to the generic port.
+-*!
+-*! Revision 1.7 2000/01/17 15:51:43 johana
+-*! Added RTC_SET_CHARGE ioctl to enable trickle charger.
+-*!
+-*! Revision 1.6 1999/10/27 13:19:47 bjornw
+-*! Added update_xtime_from_cmos which reads back the updated RTC into the kernel.
+-*! /dev/rtc calls it now.
+-*!
+-*! Revision 1.5 1999/10/27 12:39:37 bjornw
+-*! Disabled superuser check. Anyone can now set the time.
+-*!
+-*! Revision 1.4 1999/09/02 13:27:46 pkj
+-*! Added shadow for R_PORT_PB_CONFIG.
+-*! Renamed port_g_shadow to port_g_data_shadow.
+-*!
+-*! Revision 1.3 1999/09/02 08:28:06 pkj
+-*! Made it possible to select either port PB or the generic port for the RST
+-*! signal line to the DS1302 RTC.
+-*! Also make sure the RST bit is configured as output on Port PB (if used).
+-*!
+-*! Revision 1.2 1999/09/01 14:47:20 bjornw
+-*! Added support for /dev/rtc operations with ioctl RD_TIME and SET_TIME to read
+-*! and set the date. Register as major 121.
+-*!
+-*! Revision 1.1 1999/09/01 09:45:29 bjornw
+-*! Implemented a DS1302 RTC driver.
+-*!
+-*!
+ *! ---------------------------------------------------------------------------
+ *!
+-*! (C) Copyright 1999, 2000, 2001, 2002, 2003, 2004 Axis Communications AB, LUND, SWEDEN
+-*!
+-*! $Id: ds1302.c,v 1.18 2005/01/24 09:11:26 mikaelam Exp $
++*! (C) Copyright 1999-2006 Axis Communications AB, LUND, SWEDEN
+ *!
+ *!***************************************************************************/
+
+@@ -305,14 +178,7 @@
+ void
+ ds1302_writereg(int reg, unsigned char val)
+ {
+-#ifndef CONFIG_ETRAX_RTC_READONLY
+ int do_writereg = 1;
+-#else
+- int do_writereg = 0;
+-
+- if (reg == RTC_TRICKLECHARGER)
+- do_writereg = 1;
+-#endif
+
+ if (do_writereg) {
+ ds1302_wenable();
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/drivers/eeprom.c linux-2.6.19.2.dev/arch/cris/arch-v10/drivers/eeprom.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/drivers/eeprom.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/drivers/eeprom.c 2006-10-13 14:43:10.000000000 +0200
+@@ -20,6 +20,9 @@
+ *! in the spin-lock.
+ *!
+ *! $Log: eeprom.c,v $
++*! Revision 1.13 2006/10/13 12:43:10 starvik
++*! Merge of 2.6.18
++*!
+ *! Revision 1.12 2005/06/19 17:06:46 starvik
+ *! Merge of Linux 2.6.12.
+ *!
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/drivers/gpio.c linux-2.6.19.2.dev/arch/cris/arch-v10/drivers/gpio.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/drivers/gpio.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/drivers/gpio.c 2007-02-05 12:54:34.000000000 +0100
+@@ -1,4 +1,4 @@
+-/* $Id: gpio.c,v 1.17 2005/06/19 17:06:46 starvik Exp $
++/* $Id: gpio.c,v 1.28 2007/02/05 11:54:34 pkj Exp $
+ *
+ * Etrax general port I/O device
+ *
+@@ -9,6 +9,40 @@
+ * Johan Adolfsson (read/set directions, write, port G)
+ *
+ * $Log: gpio.c,v $
++ * Revision 1.28 2007/02/05 11:54:34 pkj
++ * Merge of Linux 2.6.19
++ *
++ * Revision 1.27 2006/12/12 11:08:30 edgar
++ * In etrax_gpio_wake_up_check(), make flags unsigned long.
++ *
++ * Revision 1.26 2006/11/02 10:54:29 pkj
++ * Restored unique device id for request_irq() which was lost in the
++ * merge of 2.6.18.
++ *
++ * Revision 1.25 2006/10/13 12:43:10 starvik
++ * Merge of 2.6.18
++ *
++ * Revision 1.24 2006/07/13 07:42:20 starvik
++ * Set unique device id in request_irq
++ *
++ * Revision 1.23 2006/06/21 09:38:46 starvik
++ * Use correct spinlock macros
++ *
++ * Revision 1.22 2005/08/29 07:32:16 starvik
++ * Merge of 2.6.13
++ *
++ * Revision 1.21 2005/08/16 17:10:54 edgar
++ * dont leave locked spinlocks when returning.
++ *
++ * Revision 1.20 2005/08/15 13:10:47 orjanf
++ * Don't link struct into alarmlist until fully initialized.
++ *
++ * Revision 1.19 2005/07/13 11:43:11 karljope
++ * Corrected typo
++ *
++ * Revision 1.18 2005/06/21 12:26:53 starvik
++ * Improved alarm list locking.
++ *
+ * Revision 1.17 2005/06/19 17:06:46 starvik
+ * Merge of Linux 2.6.12.
+ *
+@@ -277,7 +311,7 @@
+ unsigned int mask = 0;
+ struct gpio_private *priv = (struct gpio_private *)file->private_data;
+ unsigned long data;
+- spin_lock(&gpio_lock);
++ spin_lock_irq(&gpio_lock);
+ poll_wait(file, &priv->alarm_wq, wait);
+ if (priv->minor == GPIO_MINOR_A) {
+ unsigned long flags;
+@@ -297,15 +331,17 @@
+ data = *R_PORT_PB_DATA;
+ else if (priv->minor == GPIO_MINOR_G)
+ data = *R_PORT_G_DATA;
+- else
++ else {
++ spin_unlock_irq(&gpio_lock);
+ return 0;
++ }
+
+ if ((data & priv->highalarm) ||
+ (~data & priv->lowalarm)) {
+ mask = POLLIN|POLLRDNORM;
+ }
+
+- spin_unlock(&gpio_lock);
++ spin_unlock_irq(&gpio_lock);
+
+ DP(printk("gpio_poll ready: mask 0x%08X\n", mask));
+
+@@ -314,10 +350,12 @@
+
+ int etrax_gpio_wake_up_check(void)
+ {
+- struct gpio_private *priv = alarmlist;
++ struct gpio_private *priv;
+ unsigned long data = 0;
+ int ret = 0;
+- spin_lock(&gpio_lock);
++ unsigned long flags;
++ spin_lock_irqsave(&gpio_lock, flags);
++ priv = alarmlist;
+ while (priv) {
+ if (USE_PORTS(priv)) {
+ data = *priv->port;
+@@ -332,12 +370,12 @@
+ }
+ priv = priv->next;
+ }
+- spin_unlock(&gpio_lock);
++ spin_unlock_irqrestore(&gpio_lock, flags);
+ return ret;
+ }
+
+ static irqreturn_t
+-gpio_poll_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
++gpio_poll_timer_interrupt(int irq, void *dev_id)
+ {
+ if (gpio_some_alarms) {
+ etrax_gpio_wake_up_check();
+@@ -347,7 +385,7 @@
+ }
+
+ static irqreturn_t
+-gpio_pa_interrupt(int irq, void *dev_id, struct pt_regs *regs)
++gpio_pa_interrupt(int irq, void *dev_id)
+ {
+ unsigned long tmp;
+ spin_lock(&gpio_lock);
+@@ -376,9 +414,6 @@
+ struct gpio_private *priv = (struct gpio_private *)file->private_data;
+ unsigned char data, clk_mask, data_mask, write_msb;
+ unsigned long flags;
+-
+- spin_lock(&gpio_lock);
+-
+ ssize_t retval = count;
+ if (priv->minor !=GPIO_MINOR_A && priv->minor != GPIO_MINOR_B) {
+ return -EFAULT;
+@@ -394,6 +429,7 @@
+ if (clk_mask == 0 || data_mask == 0) {
+ return -EPERM;
+ }
++ spin_lock_irq(&gpio_lock);
+ write_msb = priv->write_msb;
+ D(printk("gpio_write: %lu to data 0x%02X clk 0x%02X msb: %i\n",count, data_mask, clk_mask, write_msb));
+ while (count--) {
+@@ -425,7 +461,7 @@
+ }
+ }
+ }
+- spin_unlock(&gpio_lock);
++ spin_unlock_irq(&gpio_lock);
+ return retval;
+ }
+
+@@ -445,13 +481,12 @@
+
+ if (!priv)
+ return -ENOMEM;
++ memset(priv, 0, sizeof(*priv));
+
+ priv->minor = p;
+
+- /* initialize the io/alarm struct and link it into our alarmlist */
++ /* initialize the io/alarm struct */
+
+- priv->next = alarmlist;
+- alarmlist = priv;
+ if (USE_PORTS(priv)) { /* A and B */
+ priv->port = ports[p];
+ priv->shadow = shads[p];
+@@ -476,6 +511,12 @@
+
+ filp->private_data = (void *)priv;
+
++ /* link it into our alarmlist */
++ spin_lock_irq(&gpio_lock);
++ priv->next = alarmlist;
++ alarmlist = priv;
++ spin_unlock_irq(&gpio_lock);
++
+ return 0;
+ }
+
+@@ -485,10 +526,10 @@
+ struct gpio_private *p;
+ struct gpio_private *todel;
+
+- spin_lock(&gpio_lock);
++ spin_lock_irq(&gpio_lock);
+
+- p = alarmlist;
+- todel = (struct gpio_private *)filp->private_data;
++ p = alarmlist;
++ todel = (struct gpio_private *)filp->private_data;
+
+ /* unlink from alarmlist and free the private structure */
+
+@@ -506,12 +547,13 @@
+ while (p) {
+ if (p->highalarm | p->lowalarm) {
+ gpio_some_alarms = 1;
++ spin_unlock_irq(&gpio_lock);
+ return 0;
+ }
+ p = p->next;
+ }
+ gpio_some_alarms = 0;
+- spin_unlock(&gpio_lock);
++ spin_unlock_irq(&gpio_lock);
+ return 0;
+ }
+
+@@ -691,6 +733,8 @@
+ /* Must update gpio_some_alarms */
+ struct gpio_private *p = alarmlist;
+ int some_alarms;
++ spin_lock_irq(&gpio_lock);
++ p = alarmlist;
+ some_alarms = 0;
+ while (p) {
+ if (p->highalarm | p->lowalarm) {
+@@ -700,6 +744,7 @@
+ p = p->next;
+ }
+ gpio_some_alarms = some_alarms;
++ spin_unlock_irq(&gpio_lock);
+ }
+ break;
+ case IO_READDIR: /* Use IO_SETGET_INPUT/OUTPUT instead! */
+@@ -937,11 +982,11 @@
+ * in some tests.
+ */
+ if (request_irq(TIMER0_IRQ_NBR, gpio_poll_timer_interrupt,
+- IRQF_SHARED | IRQF_DISABLED,"gpio poll", NULL)) {
++ IRQF_SHARED | IRQF_DISABLED,"gpio poll", gpio_name)) {
+ printk(KERN_CRIT "err: timer0 irq for gpio\n");
+ }
+ if (request_irq(PA_IRQ_NBR, gpio_pa_interrupt,
+- IRQF_SHARED | IRQF_DISABLED,"gpio PA", NULL)) {
++ IRQF_SHARED | IRQF_DISABLED,"gpio PA", gpio_name)) {
+ printk(KERN_CRIT "err: PA irq for gpio\n");
+ }
+
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/drivers/i2c.c linux-2.6.19.2.dev/arch/cris/arch-v10/drivers/i2c.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/drivers/i2c.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/drivers/i2c.c 2006-10-13 14:43:10.000000000 +0200
+@@ -11,7 +11,25 @@
+ *! Jan 14 2000 Johan Adolfsson Fixed PB shadow register stuff -
+ *! don't use PB_I2C if DS1302 uses same bits,
+ *! use PB.
++*! June 23 2003 Pieter Grimmerink Added 'i2c_sendnack'. i2c_readreg now
++*! generates nack on last received byte,
++*! instead of ack.
++*! i2c_getack changed data level while clock
++*! was high, causing DS75 to see a stop condition
++*!
+ *! $Log: i2c.c,v $
++*! Revision 1.17 2006/10/13 12:43:10 starvik
++*! Merge of 2.6.18
++*!
++*! Revision 1.16 2005/09/29 13:33:35 bjarne
++*! If "first" should have any purpos it should probably change value....
++*!
++*! Revision 1.15 2005/08/29 07:32:16 starvik
++*! Merge of 2.6.13
++*!
++*! Revision 1.14 2005/06/30 18:07:31 starvik
++*! Added the sendnack patch from 2.4.
++*!
+ *! Revision 1.13 2005/03/07 13:13:07 starvik
+ *! Added spinlocks to protect states etc
+ *!
+@@ -84,7 +102,7 @@
+ *! (C) Copyright 1999-2002 Axis Communications AB, LUND, SWEDEN
+ *!
+ *!***************************************************************************/
+-/* $Id: i2c.c,v 1.13 2005/03/07 13:13:07 starvik Exp $ */
++/* $Id: i2c.c,v 1.17 2006/10/13 12:43:10 starvik Exp $ */
+
+ /****************** INCLUDE FILES SECTION ***********************************/
+
+@@ -480,7 +498,7 @@
+ i2c_delay(CLOCK_HIGH_TIME);
+ i2c_clk(I2C_CLOCK_LOW);
+ i2c_delay(CLOCK_LOW_TIME);
+-
++
+ i2c_dir_in();
+ }
+
+@@ -622,7 +640,7 @@
+ * last received byte needs to be nacked
+ * instead of acked
+ */
+- i2c_sendack();
++ i2c_sendnack();
+ /*
+ * end sequence
+ */
+@@ -708,6 +726,7 @@
+ if (!first) {
+ return res;
+ }
++ first = 0;
+
+ /* Setup and enable the Port B I2C interface */
+
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/drivers/pcf8563.c linux-2.6.19.2.dev/arch/cris/arch-v10/drivers/pcf8563.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/drivers/pcf8563.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/drivers/pcf8563.c 2006-10-27 17:22:12.000000000 +0200
+@@ -8,14 +8,13 @@
+ * low detector are also provided. All address and data are transferred
+ * serially via two-line bidirectional I2C-bus. Maximum bus speed is
+ * 400 kbits/s. The built-in word address register is incremented
+- * automatically after each written or read bute.
++ * automatically after each written or read byte.
+ *
+- * Copyright (c) 2002, Axis Communications AB
++ * Copyright (c) 2002-2006, Axis Communications AB
+ * All rights reserved.
+ *
+ * Author: Tobias Anderberg <tobiasa@axis.com>.
+ *
+- * $Id: pcf8563.c,v 1.11 2005/03/07 13:13:07 starvik Exp $
+ */
+
+ #include <linux/module.h>
+@@ -27,93 +26,105 @@
+ #include <linux/ioctl.h>
+ #include <linux/delay.h>
+ #include <linux/bcd.h>
+-#include <linux/capability.h>
+
+ #include <asm/uaccess.h>
+ #include <asm/system.h>
+ #include <asm/io.h>
+-#include <asm/arch/svinto.h>
+ #include <asm/rtc.h>
++
+ #include "i2c.h"
+
+-#define PCF8563_MAJOR 121 /* Local major number. */
+-#define DEVICE_NAME "rtc" /* Name which is registered in /proc/devices. */
+-#define PCF8563_NAME "PCF8563"
+-#define DRIVER_VERSION "$Revision: 1.11 $"
+-
+-/* I2C bus slave registers. */
+-#define RTC_I2C_READ 0xa3
+-#define RTC_I2C_WRITE 0xa2
++#define PCF8563_MAJOR 121 /* Local major number. */
++#define DEVICE_NAME "rtc" /* Name which is registered in /proc/devices. */
++#define PCF8563_NAME "PCF8563"
++#define DRIVER_VERSION "$Revision: 1.18 $"
+
+ /* Two simple wrapper macros, saves a few keystrokes. */
+ #define rtc_read(x) i2c_readreg(RTC_I2C_READ, x)
+ #define rtc_write(x,y) i2c_writereg(RTC_I2C_WRITE, x, y)
+
+ static DEFINE_SPINLOCK(rtc_lock); /* Protect state etc */
+-
++
+ static const unsigned char days_in_month[] =
+ { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
+
+ int pcf8563_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
+
++/* Cache VL bit value read at driver init since writing the RTC_SECOND
++ * register clears the VL status.
++ */
++static int voltage_low = 0;
++
+ static struct file_operations pcf8563_fops = {
+- .owner = THIS_MODULE,
+- .ioctl = pcf8563_ioctl,
++ owner: THIS_MODULE,
++ ioctl: pcf8563_ioctl,
+ };
+
+ unsigned char
+-pcf8563_readreg(int reg)
++pcf8563_readreg(int reg)
+ {
+- unsigned char res = i2c_readreg(RTC_I2C_READ, reg);
++ unsigned char res = rtc_read(reg);
+
+- /* The PCF8563 does not return 0 for unimplemented bits */
+- switch(reg)
+- {
++ /* The PCF8563 does not return 0 for unimplemented bits. */
++ switch (reg) {
+ case RTC_SECONDS:
+ case RTC_MINUTES:
+- res &= 0x7f;
+- break;
++ res &= 0x7F;
++ break;
+ case RTC_HOURS:
+ case RTC_DAY_OF_MONTH:
+- res &= 0x3f;
+- break;
++ res &= 0x3F;
++ break;
++ case RTC_WEEKDAY:
++ res &= 0x07;
++ break;
+ case RTC_MONTH:
+- res = (res & 0x1f) - 1; /* PCF8563 returns month in range 1-12 */
+- break;
++ res &= 0x1F;
++ break;
++ case RTC_CONTROL1:
++ res &= 0xA8;
++ break;
++ case RTC_CONTROL2:
++ res &= 0x1F;
++ break;
++ case RTC_CLOCKOUT_FREQ:
++ case RTC_TIMER_CONTROL:
++ res &= 0x83;
++ break;
+ }
+ return res;
+ }
+
+ void
+-pcf8563_writereg(int reg, unsigned char val)
++pcf8563_writereg(int reg, unsigned char val)
+ {
+-#ifdef CONFIG_ETRAX_RTC_READONLY
+- if (reg == RTC_CONTROL1 || (reg >= RTC_SECONDS && reg <= RTC_YEAR))
+- return;
+-#endif
+-
+ rtc_write(reg, val);
+ }
+
+ void
+ get_rtc_time(struct rtc_time *tm)
+ {
+- tm->tm_sec = rtc_read(RTC_SECONDS);
+- tm->tm_min = rtc_read(RTC_MINUTES);
++ tm->tm_sec = rtc_read(RTC_SECONDS);
++ tm->tm_min = rtc_read(RTC_MINUTES);
+ tm->tm_hour = rtc_read(RTC_HOURS);
+ tm->tm_mday = rtc_read(RTC_DAY_OF_MONTH);
+- tm->tm_mon = rtc_read(RTC_MONTH);
++ tm->tm_wday = rtc_read(RTC_WEEKDAY);
++ tm->tm_mon = rtc_read(RTC_MONTH);
+ tm->tm_year = rtc_read(RTC_YEAR);
+
+- if (tm->tm_sec & 0x80)
+- printk(KERN_WARNING "%s: RTC Low Voltage - date/time is not reliable!\n", PCF8563_NAME);
++ if (tm->tm_sec & 0x80) {
++ printk(KERN_WARNING "%s: RTC Voltage Low - reliable date/time "
++ "information is no longer guaranteed!\n", PCF8563_NAME);
++ }
+
+- tm->tm_year = BCD_TO_BIN(tm->tm_year) + ((tm->tm_mon & 0x80) ? 100 : 0);
+- tm->tm_sec &= 0x7f;
+- tm->tm_min &= 0x7f;
+- tm->tm_hour &= 0x3f;
+- tm->tm_mday &= 0x3f;
+- tm->tm_mon &= 0x1f;
++ tm->tm_year = BCD_TO_BIN(tm->tm_year) +
++ ((tm->tm_mon & 0x80) ? 100 : 0);
++ tm->tm_sec &= 0x7F;
++ tm->tm_min &= 0x7F;
++ tm->tm_hour &= 0x3F;
++ tm->tm_mday &= 0x3F;
++ tm->tm_wday &= 0x07; /* Not coded in BCD. */
++ tm->tm_mon &= 0x1F;
+
+ BCD_TO_BIN(tm->tm_sec);
+ BCD_TO_BIN(tm->tm_min);
+@@ -126,17 +137,25 @@
+ int __init
+ pcf8563_init(void)
+ {
+- int ret;
++ static int res = 0;
++ static int first = 1;
++
++ if (!first) {
++ return res;
++ }
++ first = 0;
+
+- if ((ret = i2c_init())) {
+- printk(KERN_CRIT "pcf8563_init: failed to init i2c\n");
+- return ret;
++ /* Initiate the i2c protocol. */
++ res = i2c_init();
++ if (res < 0) {
++ printk(KERN_CRIT "pcf8563_init: Failed to init i2c.\n");
++ return res;
+ }
+
+ /*
+ * First of all we need to reset the chip. This is done by
+- * clearing control1, control2 and clk freq, clear the
+- * Voltage Low bit, and resetting all alarms.
++ * clearing control1, control2 and clk freq and resetting
++ * all alarms.
+ */
+ if (rtc_write(RTC_CONTROL1, 0x00) < 0)
+ goto err;
+@@ -147,41 +166,44 @@
+ if (rtc_write(RTC_CLOCKOUT_FREQ, 0x00) < 0)
+ goto err;
+
+- /* Clear the VL bit in the seconds register. */
+- ret = rtc_read(RTC_SECONDS);
+-
+- if (rtc_write(RTC_SECONDS, (ret & 0x7f)) < 0)
++ if (rtc_write(RTC_TIMER_CONTROL, 0x03) < 0)
+ goto err;
+-
++
+ /* Reset the alarms. */
+- if (rtc_write(RTC_MINUTE_ALARM, 0x00) < 0)
++ if (rtc_write(RTC_MINUTE_ALARM, 0x80) < 0)
+ goto err;
+-
+- if (rtc_write(RTC_HOUR_ALARM, 0x00) < 0)
++
++ if (rtc_write(RTC_HOUR_ALARM, 0x80) < 0)
+ goto err;
+-
+- if (rtc_write(RTC_DAY_ALARM, 0x00) < 0)
++
++ if (rtc_write(RTC_DAY_ALARM, 0x80) < 0)
+ goto err;
+-
+- if (rtc_write(RTC_WEEKDAY_ALARM, 0x00) < 0)
++
++ if (rtc_write(RTC_WEEKDAY_ALARM, 0x80) < 0)
+ goto err;
+-
+- /* Check for low voltage, and warn about it.. */
+- if (rtc_read(RTC_SECONDS) & 0x80)
+- printk(KERN_WARNING "%s: RTC Low Voltage - date/time is not reliable!\n", PCF8563_NAME);
+-
+- return 0;
++
++ /* Check for low voltage, and warn about it. */
++ if (rtc_read(RTC_SECONDS) & 0x80) {
++ voltage_low = 1;
++ printk(KERN_WARNING "%s: RTC Voltage Low - reliable "
++ "date/time information is no longer guaranteed!\n",
++ PCF8563_NAME);
++ }
++
++ return res;
+
+ err:
+ printk(KERN_INFO "%s: Error initializing chip.\n", PCF8563_NAME);
+- return -1;
++ res = -1;
++ return res;
+ }
+
+ void __exit
+ pcf8563_exit(void)
+ {
+ if (unregister_chrdev(PCF8563_MAJOR, DEVICE_NAME) < 0) {
+- printk(KERN_INFO "%s: Unable to unregister device.\n", PCF8563_NAME);
++ printk(KERN_INFO "%s: Unable to unregister device.\n",
++ PCF8563_NAME);
+ }
+ }
+
+@@ -190,7 +212,8 @@
+ * POSIX says so!
+ */
+ int
+-pcf8563_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg)
++pcf8563_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
++ unsigned long arg)
+ {
+ /* Some sanity checks. */
+ if (_IOC_TYPE(cmd) != RTC_MAGIC)
+@@ -201,123 +224,151 @@
+
+ switch (cmd) {
+ case RTC_RD_TIME:
+- {
+- struct rtc_time tm;
+-
+- spin_lock(&rtc_lock);
+- get_rtc_time(&tm);
++ {
++ struct rtc_time tm;
+
+- if (copy_to_user((struct rtc_time *) arg, &tm, sizeof(struct rtc_time))) {
+- spin_unlock(&rtc_lock);
+- return -EFAULT;
+- }
++ spin_lock(&rtc_lock);
++ memset(&tm, 0, sizeof tm);
++ get_rtc_time(&tm);
+
++ if (copy_to_user((struct rtc_time *) arg, &tm,
++ sizeof tm)) {
+ spin_unlock(&rtc_lock);
+- return 0;
++ return -EFAULT;
+ }
+- break;
++
++ spin_unlock(&rtc_lock);
++
++ return 0;
++ }
+ case RTC_SET_TIME:
+- {
+-#ifdef CONFIG_ETRAX_RTC_READONLY
++ {
++ int leap;
++ int year;
++ int century;
++ struct rtc_time tm;
++
++ memset(&tm, 0, sizeof tm);
++ if (!capable(CAP_SYS_TIME))
+ return -EPERM;
+-#else
+- int leap;
+- int century;
+- struct rtc_time tm;
+-
+- memset(&tm, 0, sizeof (struct rtc_time));
+- if (!capable(CAP_SYS_TIME))
+- return -EPERM;
+-
+- if (copy_from_user(&tm, (struct rtc_time *) arg, sizeof(struct rtc_time)))
+- return -EFAULT;
+-
+- /* Convert from struct tm to struct rtc_time. */
+- tm.tm_year += 1900;
+- tm.tm_mon += 1;
+-
+- leap = ((tm.tm_mon == 2) && ((tm.tm_year % 4) == 0)) ? 1 : 0;
+-
+- /* Perform some sanity checks. */
+- if ((tm.tm_year < 1970) ||
+- (tm.tm_mon > 12) ||
+- (tm.tm_mday == 0) ||
+- (tm.tm_mday > days_in_month[tm.tm_mon] + leap) ||
+- (tm.tm_hour >= 24) ||
+- (tm.tm_min >= 60) ||
+- (tm.tm_sec >= 60))
+- return -EINVAL;
+-
+- century = (tm.tm_year >= 2000) ? 0x80 : 0;
+- tm.tm_year = tm.tm_year % 100;
+-
+- BIN_TO_BCD(tm.tm_year);
+- BIN_TO_BCD(tm.tm_mday);
+- BIN_TO_BCD(tm.tm_hour);
+- BIN_TO_BCD(tm.tm_min);
+- BIN_TO_BCD(tm.tm_sec);
+- tm.tm_mon |= century;
+-
+- spin_lock(&rtc_lock);
+-
+- rtc_write(RTC_YEAR, tm.tm_year);
+- rtc_write(RTC_MONTH, tm.tm_mon);
+- rtc_write(RTC_DAY_OF_MONTH, tm.tm_mday);
+- rtc_write(RTC_HOURS, tm.tm_hour);
+- rtc_write(RTC_MINUTES, tm.tm_min);
+- rtc_write(RTC_SECONDS, tm.tm_sec);
+
+- spin_unlock(&rtc_lock);
++ if (copy_from_user(&tm, (struct rtc_time *) arg,
++ sizeof tm)) {
++ return -EFAULT;
++ }
+
+- return 0;
+-#endif /* !CONFIG_ETRAX_RTC_READONLY */
++ /* Convert from struct tm to struct rtc_time. */
++ tm.tm_year += 1900;
++ tm.tm_mon += 1;
++
++ /*
++ * Check if tm.tm_year is a leap year. A year is a leap
++ * year if it is divisible by 4 but not 100, except
++ * that years divisible by 400 _are_ leap years.
++ */
++ year = tm.tm_year;
++ leap = (tm.tm_mon == 2) &&
++ ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0);
++
++ /* Perform some sanity checks. */
++ if ((tm.tm_year < 1970) ||
++ (tm.tm_mon > 12) ||
++ (tm.tm_mday == 0) ||
++ (tm.tm_mday > days_in_month[tm.tm_mon] + leap) ||
++ (tm.tm_wday >= 7) ||
++ (tm.tm_hour >= 24) ||
++ (tm.tm_min >= 60) ||
++ (tm.tm_sec >= 60)) {
++ return -EINVAL;
+ }
+
+- case RTC_VLOW_RD:
+- {
+- int vl_bit = 0;
++ century = (tm.tm_year >= 2000) ? 0x80 : 0;
++ tm.tm_year = tm.tm_year % 100;
+
+- if (rtc_read(RTC_SECONDS) & 0x80) {
+- vl_bit = 1;
+- printk(KERN_WARNING "%s: RTC Voltage Low - reliable "
+- "date/time information is no longer guaranteed!\n",
+- PCF8563_NAME);
+- }
+- if (copy_to_user((int *) arg, &vl_bit, sizeof(int)))
+- return -EFAULT;
++ BIN_TO_BCD(tm.tm_year);
++ BIN_TO_BCD(tm.tm_mon);
++ BIN_TO_BCD(tm.tm_mday);
++ BIN_TO_BCD(tm.tm_hour);
++ BIN_TO_BCD(tm.tm_min);
++ BIN_TO_BCD(tm.tm_sec);
++ tm.tm_mon |= century;
++
++ spin_lock(&rtc_lock);
++
++ rtc_write(RTC_YEAR, tm.tm_year);
++ rtc_write(RTC_MONTH, tm.tm_mon);
++ rtc_write(RTC_WEEKDAY, tm.tm_wday); /* Not coded in BCD. */
++ rtc_write(RTC_DAY_OF_MONTH, tm.tm_mday);
++ rtc_write(RTC_HOURS, tm.tm_hour);
++ rtc_write(RTC_MINUTES, tm.tm_min);
++ rtc_write(RTC_SECONDS, tm.tm_sec);
++
++ spin_unlock(&rtc_lock);
+
+ return 0;
+ }
++ case RTC_VLOW_RD:
++ if (voltage_low) {
++ printk(KERN_WARNING "%s: RTC Voltage Low - "
++ "reliable date/time information is no "
++ "longer guaranteed!\n", PCF8563_NAME);
++ }
++
++ if (copy_to_user((int *) arg, &voltage_low, sizeof(int))) {
++ return -EFAULT;
++ }
++
++ return 0;
+
+ case RTC_VLOW_SET:
+ {
+- /* Clear the VL bit in the seconds register */
++ /* Clear the VL bit in the seconds register in case
++ * the time has not been set already (which would
++ * have cleared it). This does not really matter
++ * because of the cached voltage_low value but do it
++ * anyway for consistency. */
++
+ int ret = rtc_read(RTC_SECONDS);
+
+ rtc_write(RTC_SECONDS, (ret & 0x7F));
+
++ /* Clear the cached value. */
++ voltage_low = 0;
++
+ return 0;
+ }
+-
+ default:
+- return -ENOTTY;
++ return -ENOTTY;
+ }
+
+ return 0;
+ }
+
+-static int __init
++static int __init
+ pcf8563_register(void)
+ {
+- pcf8563_init();
++ if (pcf8563_init() < 0) {
++ printk(KERN_INFO "%s: Unable to initialize Real-Time Clock "
++ "Driver, %s\n", PCF8563_NAME, DRIVER_VERSION);
++ return -1;
++ }
++
+ if (register_chrdev(PCF8563_MAJOR, DEVICE_NAME, &pcf8563_fops) < 0) {
+- printk(KERN_INFO "%s: Unable to get major numer %d for RTC device.\n",
+- PCF8563_NAME, PCF8563_MAJOR);
++ printk(KERN_INFO "%s: Unable to get major numer %d for RTC "
++ "device.\n", PCF8563_NAME, PCF8563_MAJOR);
+ return -1;
+ }
+
+- printk(KERN_INFO "%s Real-Time Clock Driver, %s\n", PCF8563_NAME, DRIVER_VERSION);
+- return 0;
++ printk(KERN_INFO "%s Real-Time Clock Driver, %s\n", PCF8563_NAME,
++ DRIVER_VERSION);
++
++ /* Check for low voltage, and warn about it. */
++ if (voltage_low) {
++ printk(KERN_WARNING "%s: RTC Voltage Low - reliable date/time "
++ "information is no longer guaranteed!\n", PCF8563_NAME);
++ }
++
++ return 0;
+ }
+
+ module_init(pcf8563_register);
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/drivers/sync_serial.c linux-2.6.19.2.dev/arch/cris/arch-v10/drivers/sync_serial.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/drivers/sync_serial.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/drivers/sync_serial.c 2007-02-05 12:56:34.000000000 +0100
+@@ -0,0 +1,1329 @@
++/*
++ * Simple synchronous serial port driver for ETRAX 100LX.
++ *
++ * Synchronous serial ports are used for continuous streamed data like audio.
++ * The default setting for this driver is compatible with the STA 013 MP3
++ * decoder. The driver can easily be tuned to fit other audio encoder/decoders
++ * and SPI
++ *
++ * Copyright (c) 2001-2006 Axis Communications AB
++ *
++ * Author: Mikael Starvik, Johan Adolfsson
++ *
++ */
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/types.h>
++#include <linux/errno.h>
++#include <linux/major.h>
++#include <linux/sched.h>
++#include <linux/slab.h>
++#include <linux/interrupt.h>
++#include <linux/poll.h>
++#include <linux/init.h>
++#include <linux/timer.h>
++#include <asm/irq.h>
++#include <asm/dma.h>
++#include <asm/io.h>
++#include <asm/arch/svinto.h>
++#include <asm/uaccess.h>
++#include <asm/system.h>
++#include <asm/sync_serial.h>
++#include <asm/arch/io_interface_mux.h>
++
++/* The receiver is a bit tricky beacuse of the continuous stream of data.*/
++/* */
++/* Three DMA descriptors are linked together. Each DMA descriptor is */
++/* responsible for port->bufchunk of a common buffer. */
++/* */
++/* +---------------------------------------------+ */
++/* | +----------+ +----------+ +----------+ | */
++/* +-> | Descr[0] |-->| Descr[1] |-->| Descr[2] |-+ */
++/* +----------+ +----------+ +----------+ */
++/* | | | */
++/* v v v */
++/* +-------------------------------------+ */
++/* | BUFFER | */
++/* +-------------------------------------+ */
++/* |<- data_avail ->| */
++/* readp writep */
++/* */
++/* If the application keeps up the pace readp will be right after writep.*/
++/* If the application can't keep the pace we have to throw away data. */
++/* The idea is that readp should be ready with the data pointed out by */
++/* Descr[i] when the DMA has filled in Descr[i+1]. */
++/* Otherwise we will discard */
++/* the rest of the data pointed out by Descr1 and set readp to the start */
++/* of Descr2 */
++
++#define SYNC_SERIAL_MAJOR 125
++
++/* IN_BUFFER_SIZE should be a multiple of 6 to make sure that 24 bit */
++/* words can be handled */
++#define IN_BUFFER_SIZE 12288
++#define IN_DESCR_SIZE 256
++#define NUM_IN_DESCR (IN_BUFFER_SIZE/IN_DESCR_SIZE)
++#define OUT_BUFFER_SIZE 4096
++
++#define DEFAULT_FRAME_RATE 0
++#define DEFAULT_WORD_RATE 7
++
++/* NOTE: Enabling some debug will likely cause overrun or underrun,
++ * especially if manual mode is use.
++ */
++#define DEBUG(x)
++#define DEBUGREAD(x)
++#define DEBUGWRITE(x)
++#define DEBUGPOLL(x)
++#define DEBUGRXINT(x)
++#define DEBUGTXINT(x)
++
++/* Define some macros to access ETRAX 100 registers */
++#define SETF(var, reg, field, val) var = (var & ~IO_MASK_(reg##_, field##_)) | \
++ IO_FIELD_(reg##_, field##_, val)
++#define SETS(var, reg, field, val) var = (var & ~IO_MASK_(reg##_, field##_)) | \
++ IO_STATE_(reg##_, field##_, _##val)
++
++typedef struct sync_port
++{
++ /* Etrax registers and bits*/
++ const volatile unsigned * const status;
++ volatile unsigned * const ctrl_data;
++ volatile unsigned * const output_dma_first;
++ volatile unsigned char * const output_dma_cmd;
++ volatile unsigned char * const output_dma_clr_irq;
++ volatile unsigned * const input_dma_first;
++ volatile unsigned char * const input_dma_cmd;
++ volatile unsigned * const input_dma_descr;
++ /* 8*4 */
++ volatile unsigned char * const input_dma_clr_irq;
++ volatile unsigned * const data_out;
++ const volatile unsigned * const data_in;
++ char data_avail_bit; /* In R_IRQ_MASK1_RD/SET/CLR */
++ char transmitter_ready_bit; /* In R_IRQ_MASK1_RD/SET/CLR */
++ char input_dma_descr_bit; /* In R_IRQ_MASK2_RD */
++
++ char output_dma_bit; /* In R_IRQ_MASK2_RD */
++ /* End of fields initialised in array */
++ char started; /* 1 if port has been started */
++ char port_nbr; /* Port 0 or 1 */
++ char busy; /* 1 if port is busy */
++
++ char enabled; /* 1 if port is enabled */
++ char use_dma; /* 1 if port uses dma */
++ char tr_running;
++
++ char init_irqs;
++
++ unsigned int ctrl_data_shadow; /* Register shadow */
++ volatile unsigned int out_count; /* Remaining bytes for current transfer */
++ unsigned char* outp; /* Current position in out_buffer */
++ /* 16*4 */
++ volatile unsigned char* volatile readp; /* Next byte to be read by application */
++ volatile unsigned char* volatile writep; /* Next byte to be written by etrax */
++ unsigned int in_buffer_size;
++ unsigned int inbufchunk;
++ struct etrax_dma_descr out_descr __attribute__ ((aligned(32)));
++ struct etrax_dma_descr in_descr[NUM_IN_DESCR] __attribute__ ((aligned(32)));
++ unsigned char out_buffer[OUT_BUFFER_SIZE] __attribute__ ((aligned(32)));
++ unsigned char in_buffer[IN_BUFFER_SIZE]__attribute__ ((aligned(32)));
++ unsigned char flip[IN_BUFFER_SIZE] __attribute__ ((aligned(32)));
++ struct etrax_dma_descr* next_rx_desc;
++ struct etrax_dma_descr* prev_rx_desc;
++ int full;
++
++ wait_queue_head_t out_wait_q;
++ wait_queue_head_t in_wait_q;
++} sync_port;
++
++
++static int etrax_sync_serial_init(void);
++static void initialize_port(int portnbr);
++static inline int sync_data_avail(struct sync_port *port);
++
++static int sync_serial_open(struct inode *, struct file*);
++static int sync_serial_release(struct inode*, struct file*);
++static unsigned int sync_serial_poll(struct file *filp, poll_table *wait);
++
++static int sync_serial_ioctl(struct inode*, struct file*,
++ unsigned int cmd, unsigned long arg);
++static ssize_t sync_serial_write(struct file * file, const char * buf,
++ size_t count, loff_t *ppos);
++static ssize_t sync_serial_read(struct file *file, char *buf,
++ size_t count, loff_t *ppos);
++
++#if (defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL_PORT0) && \
++ defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL0_DMA)) || \
++ (defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL_PORT1) && \
++ defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL1_DMA))
++#define SYNC_SER_DMA
++#endif
++
++static void send_word(sync_port* port);
++static void start_dma(struct sync_port *port, const char* data, int count);
++static void start_dma_in(sync_port* port);
++#ifdef SYNC_SER_DMA
++static irqreturn_t tr_interrupt(int irq, void *dev_id);
++static irqreturn_t rx_interrupt(int irq, void *dev_id);
++#endif
++#if (defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL_PORT0) && \
++ !defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL0_DMA)) || \
++ (defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL_PORT1) && \
++ !defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL1_DMA))
++#define SYNC_SER_MANUAL
++#endif
++#ifdef SYNC_SER_MANUAL
++static irqreturn_t manual_interrupt(int irq, void *dev_id);
++#endif
++
++/* The ports */
++static struct sync_port ports[]=
++{
++ {
++ .status = R_SYNC_SERIAL1_STATUS,
++ .ctrl_data = R_SYNC_SERIAL1_CTRL,
++ .output_dma_first = R_DMA_CH8_FIRST,
++ .output_dma_cmd = R_DMA_CH8_CMD,
++ .output_dma_clr_irq = R_DMA_CH8_CLR_INTR,
++ .input_dma_first = R_DMA_CH9_FIRST,
++ .input_dma_cmd = R_DMA_CH9_CMD,
++ .input_dma_descr = R_DMA_CH9_DESCR,
++ .input_dma_clr_irq = R_DMA_CH9_CLR_INTR,
++ .data_out = R_SYNC_SERIAL1_TR_DATA,
++ .data_in = R_SYNC_SERIAL1_REC_DATA,
++ .data_avail_bit = IO_BITNR(R_IRQ_MASK1_RD, ser1_data),
++ .transmitter_ready_bit = IO_BITNR(R_IRQ_MASK1_RD, ser1_ready),
++ .input_dma_descr_bit = IO_BITNR(R_IRQ_MASK2_RD, dma9_descr),
++ .output_dma_bit = IO_BITNR(R_IRQ_MASK2_RD, dma8_eop),
++ .init_irqs = 1,
++#if defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL0_DMA)
++ .use_dma = 1,
++#else
++ .use_dma = 0,
++#endif
++ },
++ {
++ .status = R_SYNC_SERIAL3_STATUS,
++ .ctrl_data = R_SYNC_SERIAL3_CTRL,
++ .output_dma_first = R_DMA_CH4_FIRST,
++ .output_dma_cmd = R_DMA_CH4_CMD,
++ .output_dma_clr_irq = R_DMA_CH4_CLR_INTR,
++ .input_dma_first = R_DMA_CH5_FIRST,
++ .input_dma_cmd = R_DMA_CH5_CMD,
++ .input_dma_descr = R_DMA_CH5_DESCR,
++ .input_dma_clr_irq = R_DMA_CH5_CLR_INTR,
++ .data_out = R_SYNC_SERIAL3_TR_DATA,
++ .data_in = R_SYNC_SERIAL3_REC_DATA,
++ .data_avail_bit = IO_BITNR(R_IRQ_MASK1_RD, ser3_data),
++ .transmitter_ready_bit = IO_BITNR(R_IRQ_MASK1_RD, ser3_ready),
++ .input_dma_descr_bit = IO_BITNR(R_IRQ_MASK2_RD, dma5_descr),
++ .output_dma_bit = IO_BITNR(R_IRQ_MASK2_RD, dma4_eop),
++ .init_irqs = 1,
++#if defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL1_DMA)
++ .use_dma = 1,
++#else
++ .use_dma = 0,
++#endif
++ }
++};
++
++/* Register shadows */
++static unsigned sync_serial_prescale_shadow = 0;
++
++#define NUMBER_OF_PORTS (sizeof(ports)/sizeof(sync_port))
++
++static struct file_operations sync_serial_fops = {
++ .owner = THIS_MODULE,
++ .write = sync_serial_write,
++ .read = sync_serial_read,
++ .poll = sync_serial_poll,
++ .ioctl = sync_serial_ioctl,
++ .open = sync_serial_open,
++ .release = sync_serial_release
++};
++
++static int __init etrax_sync_serial_init(void)
++{
++ ports[0].enabled = 0;
++ ports[1].enabled = 0;
++
++#if defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL_PORT0)
++ if (cris_request_io_interface(if_sync_serial_1, "sync_ser1")) {
++ printk(KERN_CRIT "ETRAX100LX sync_serial: Could not allocate IO group for port %d\n", 0);
++ return -EBUSY;
++ }
++#endif
++#if defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL_PORT1)
++ if (cris_request_io_interface(if_sync_serial_3, "sync_ser3")) {
++#if defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL_PORT0)
++ cris_free_io_interface(if_sync_serial_1);
++#endif
++ printk(KERN_CRIT "ETRAX100LX sync_serial: Could not allocate IO group for port %d\n", 1);
++ return -EBUSY;
++ }
++#endif
++
++ if (register_chrdev(SYNC_SERIAL_MAJOR,"sync serial", &sync_serial_fops) <0 )
++ {
++#if defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL_PORT1)
++ cris_free_io_interface(if_sync_serial_3);
++#endif
++#if defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL_PORT0)
++ cris_free_io_interface(if_sync_serial_1);
++#endif
++ printk("unable to get major for synchronous serial port\n");
++ return -EBUSY;
++ }
++
++ /* Deselect synchronous serial ports while configuring. */
++ SETS(gen_config_ii_shadow, R_GEN_CONFIG_II, sermode1, async);
++ SETS(gen_config_ii_shadow, R_GEN_CONFIG_II, sermode3, async);
++ *R_GEN_CONFIG_II = gen_config_ii_shadow;
++
++ /* Initialize Ports */
++#if defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL_PORT0)
++ ports[0].enabled = 1;
++ SETS(port_pb_i2c_shadow, R_PORT_PB_I2C, syncser1, ss1extra);
++ SETS(gen_config_ii_shadow, R_GEN_CONFIG_II, sermode1, sync);
++#if defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL0_DMA)
++ ports[0].use_dma = 1;
++#else
++ ports[0].use_dma = 0;
++#endif
++ initialize_port(0);
++#endif
++
++#if defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL_PORT1)
++ ports[1].enabled = 1;
++ SETS(port_pb_i2c_shadow, R_PORT_PB_I2C, syncser3, ss3extra);
++ SETS(gen_config_ii_shadow, R_GEN_CONFIG_II, sermode3, sync);
++#if defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL1_DMA)
++ ports[1].use_dma = 1;
++#else
++ ports[1].use_dma = 0;
++#endif
++ initialize_port(1);
++#endif
++
++ *R_PORT_PB_I2C = port_pb_i2c_shadow; /* Use PB4/PB7 */
++
++ /* Set up timing */
++ *R_SYNC_SERIAL_PRESCALE = sync_serial_prescale_shadow = (
++ IO_STATE(R_SYNC_SERIAL_PRESCALE, clk_sel_u1, codec) |
++ IO_STATE(R_SYNC_SERIAL_PRESCALE, word_stb_sel_u1, external) |
++ IO_STATE(R_SYNC_SERIAL_PRESCALE, clk_sel_u3, codec) |
++ IO_STATE(R_SYNC_SERIAL_PRESCALE, word_stb_sel_u3, external) |
++ IO_STATE(R_SYNC_SERIAL_PRESCALE, prescaler, div4) |
++ IO_FIELD(R_SYNC_SERIAL_PRESCALE, frame_rate, DEFAULT_FRAME_RATE) |
++ IO_FIELD(R_SYNC_SERIAL_PRESCALE, word_rate, DEFAULT_WORD_RATE) |
++ IO_STATE(R_SYNC_SERIAL_PRESCALE, warp_mode, normal));
++
++ /* Select synchronous ports */
++ *R_GEN_CONFIG_II = gen_config_ii_shadow;
++
++ printk("ETRAX 100LX synchronous serial port driver\n");
++ return 0;
++}
++
++static void __init initialize_port(int portnbr)
++{
++ struct sync_port* port = &ports[portnbr];
++
++ DEBUG(printk("Init sync serial port %d\n", portnbr));
++
++ port->started = 0;
++ port->port_nbr = portnbr;
++ port->busy = 0;
++ port->tr_running = 0;
++
++ port->out_count = 0;
++ port->outp = port->out_buffer;
++
++ port->readp = port->flip;
++ port->writep = port->flip;
++ port->in_buffer_size = IN_BUFFER_SIZE;
++ port->inbufchunk = IN_DESCR_SIZE;
++ port->next_rx_desc = &port->in_descr[0];
++ port->prev_rx_desc = &port->in_descr[NUM_IN_DESCR-1];
++ port->prev_rx_desc->ctrl = d_eol;
++
++ init_waitqueue_head(&port->out_wait_q);
++ init_waitqueue_head(&port->in_wait_q);
++
++ port->ctrl_data_shadow =
++ IO_STATE(R_SYNC_SERIAL1_CTRL, tr_baud, c115k2Hz) |
++ IO_STATE(R_SYNC_SERIAL1_CTRL, mode, master_output) |
++ IO_STATE(R_SYNC_SERIAL1_CTRL, error, ignore) |
++ IO_STATE(R_SYNC_SERIAL1_CTRL, rec_enable, disable) |
++ IO_STATE(R_SYNC_SERIAL1_CTRL, f_synctype, normal) |
++ IO_STATE(R_SYNC_SERIAL1_CTRL, f_syncsize, word) |
++ IO_STATE(R_SYNC_SERIAL1_CTRL, f_sync, on) |
++ IO_STATE(R_SYNC_SERIAL1_CTRL, clk_mode, normal) |
++ IO_STATE(R_SYNC_SERIAL1_CTRL, clk_halt, stopped) |
++ IO_STATE(R_SYNC_SERIAL1_CTRL, bitorder, msb) |
++ IO_STATE(R_SYNC_SERIAL1_CTRL, tr_enable, disable) |
++ IO_STATE(R_SYNC_SERIAL1_CTRL, wordsize, size8bit) |
++ IO_STATE(R_SYNC_SERIAL1_CTRL, buf_empty, lmt_8) |
++ IO_STATE(R_SYNC_SERIAL1_CTRL, buf_full, lmt_8) |
++ IO_STATE(R_SYNC_SERIAL1_CTRL, flow_ctrl, enabled) |
++ IO_STATE(R_SYNC_SERIAL1_CTRL, clk_polarity, neg) |
++ IO_STATE(R_SYNC_SERIAL1_CTRL, frame_polarity, normal)|
++ IO_STATE(R_SYNC_SERIAL1_CTRL, status_polarity, inverted)|
++ IO_STATE(R_SYNC_SERIAL1_CTRL, clk_driver, normal) |
++ IO_STATE(R_SYNC_SERIAL1_CTRL, frame_driver, normal) |
++ IO_STATE(R_SYNC_SERIAL1_CTRL, status_driver, normal)|
++ IO_STATE(R_SYNC_SERIAL1_CTRL, def_out0, high);
++
++ if (port->use_dma)
++ port->ctrl_data_shadow |= IO_STATE(R_SYNC_SERIAL1_CTRL, dma_enable, on);
++ else
++ port->ctrl_data_shadow |= IO_STATE(R_SYNC_SERIAL1_CTRL, dma_enable, off);
++
++ *port->ctrl_data = port->ctrl_data_shadow;
++}
++
++static inline int sync_data_avail(struct sync_port *port)
++{
++ int avail;
++ unsigned char *start;
++ unsigned char *end;
++
++ start = (unsigned char*)port->readp; /* cast away volatile */
++ end = (unsigned char*)port->writep; /* cast away volatile */
++ /* 0123456789 0123456789
++ * ----- - -----
++ * ^rp ^wp ^wp ^rp
++ */
++
++ if (end >= start)
++ avail = end - start;
++ else
++ avail = port->in_buffer_size - (start - end);
++ return avail;
++}
++
++static inline int sync_data_avail_to_end(struct sync_port *port)
++{
++ int avail;
++ unsigned char *start;
++ unsigned char *end;
++
++ start = (unsigned char*)port->readp; /* cast away volatile */
++ end = (unsigned char*)port->writep; /* cast away volatile */
++ /* 0123456789 0123456789
++ * ----- -----
++ * ^rp ^wp ^wp ^rp
++ */
++
++ if (end >= start)
++ avail = end - start;
++ else
++ avail = port->flip + port->in_buffer_size - start;
++ return avail;
++}
++
++
++static int sync_serial_open(struct inode *inode, struct file *file)
++{
++ int dev = MINOR(inode->i_rdev);
++ sync_port* port;
++ int mode;
++
++ DEBUG(printk("Open sync serial port %d\n", dev));
++
++ if (dev < 0 || dev >= NUMBER_OF_PORTS || !ports[dev].enabled)
++ {
++ DEBUG(printk("Invalid minor %d\n", dev));
++ return -ENODEV;
++ }
++ port = &ports[dev];
++ /* Allow open this device twice (assuming one reader and one writer) */
++ if (port->busy == 2)
++ {
++ DEBUG(printk("Device is busy.. \n"));
++ return -EBUSY;
++ }
++ if (port->init_irqs) {
++ if (port->use_dma) {
++ if (port == &ports[0]){
++#ifdef SYNC_SER_DMA
++ if(request_irq(24,
++ tr_interrupt,
++ 0,
++ "synchronous serial 1 dma tr",
++ &ports[0])) {
++ printk(KERN_CRIT "Can't allocate sync serial port 1 IRQ");
++ return -EBUSY;
++ } else if(request_irq(25,
++ rx_interrupt,
++ 0,
++ "synchronous serial 1 dma rx",
++ &ports[0])) {
++ free_irq(24, &port[0]);
++ printk(KERN_CRIT "Can't allocate sync serial port 1 IRQ");
++ return -EBUSY;
++ } else if (cris_request_dma(8,
++ "synchronous serial 1 dma tr",
++ DMA_VERBOSE_ON_ERROR,
++ dma_ser1)) {
++ free_irq(24, &port[0]);
++ free_irq(25, &port[0]);
++ printk(KERN_CRIT "Can't allocate sync serial port 1 TX DMA channel");
++ return -EBUSY;
++ } else if (cris_request_dma(9,
++ "synchronous serial 1 dma rec",
++ DMA_VERBOSE_ON_ERROR,
++ dma_ser1)) {
++ cris_free_dma(8, NULL);
++ free_irq(24, &port[0]);
++ free_irq(25, &port[0]);
++ printk(KERN_CRIT "Can't allocate sync serial port 1 RX DMA channel");
++ return -EBUSY;
++ }
++#endif
++ RESET_DMA(8); WAIT_DMA(8);
++ RESET_DMA(9); WAIT_DMA(9);
++ *R_DMA_CH8_CLR_INTR = IO_STATE(R_DMA_CH8_CLR_INTR, clr_eop, do) |
++ IO_STATE(R_DMA_CH8_CLR_INTR, clr_descr, do);
++ *R_DMA_CH9_CLR_INTR = IO_STATE(R_DMA_CH9_CLR_INTR, clr_eop, do) |
++ IO_STATE(R_DMA_CH9_CLR_INTR, clr_descr, do);
++ *R_IRQ_MASK2_SET =
++ IO_STATE(R_IRQ_MASK2_SET, dma8_eop, set) |
++ IO_STATE(R_IRQ_MASK2_SET, dma9_descr, set);
++ }
++ else if (port == &ports[1]){
++#ifdef SYNC_SER_DMA
++ if (request_irq(20,
++ tr_interrupt,
++ 0,
++ "synchronous serial 3 dma tr",
++ &ports[1])) {
++ printk(KERN_CRIT "Can't allocate sync serial port 3 IRQ");
++ return -EBUSY;
++ } else if (request_irq(21,
++ rx_interrupt,
++ 0,
++ "synchronous serial 3 dma rx",
++ &ports[1])) {
++ free_irq(20, &ports[1]);
++ printk(KERN_CRIT "Can't allocate sync serial port 3 IRQ");
++ return -EBUSY;
++ } else if (cris_request_dma(4,
++ "synchronous serial 3 dma tr",
++ DMA_VERBOSE_ON_ERROR,
++ dma_ser3)) {
++ free_irq(21, &ports[1]);
++ free_irq(20, &ports[1]);
++ printk(KERN_CRIT "Can't allocate sync serial port 3 TX DMA channel");
++ return -EBUSY;
++ } else if (cris_request_dma(5,
++ "synchronous serial 3 dma rec",
++ DMA_VERBOSE_ON_ERROR,
++ dma_ser3)) {
++ cris_free_dma(4, NULL);
++ free_irq(21, &ports[1]);
++ free_irq(20, &ports[1]);
++ printk(KERN_CRIT "Can't allocate sync serial port 3 RX DMA channel");
++ return -EBUSY;
++ }
++#endif
++ RESET_DMA(4); WAIT_DMA(4);
++ RESET_DMA(5); WAIT_DMA(5);
++ *R_DMA_CH4_CLR_INTR = IO_STATE(R_DMA_CH4_CLR_INTR, clr_eop, do) |
++ IO_STATE(R_DMA_CH4_CLR_INTR, clr_descr, do);
++ *R_DMA_CH5_CLR_INTR = IO_STATE(R_DMA_CH5_CLR_INTR, clr_eop, do) |
++ IO_STATE(R_DMA_CH5_CLR_INTR, clr_descr, do);
++ *R_IRQ_MASK2_SET =
++ IO_STATE(R_IRQ_MASK2_SET, dma4_eop, set) |
++ IO_STATE(R_IRQ_MASK2_SET, dma5_descr, set);
++ }
++ start_dma_in(port);
++ port->init_irqs = 0;
++ } else { /* !port->use_dma */
++#ifdef SYNC_SER_MANUAL
++ if (port == &ports[0]) {
++ if (request_irq(8,
++ manual_interrupt,
++ IRQF_SHARED | IRQF_DISABLED,
++ "synchronous serial manual irq",
++ &ports[0])) {
++ printk("Can't allocate sync serial manual irq");
++ return -EBUSY;
++ }
++ } else if (port == &ports[1]) {
++ if (request_irq(8,
++ manual_interrupt,
++ IRQF_SHARED | IRQF_DISABLED,
++ "synchronous serial manual irq",
++ &ports[1])) {
++ printk(KERN_CRIT "Can't allocate sync serial manual irq");
++ return -EBUSY;
++ }
++ }
++ port->init_irqs = 0;
++#else
++ panic("sync_serial: Manual mode not supported.\n");
++#endif /* SYNC_SER_MANUAL */
++ }
++ } /* port->init_irqs */
++
++ port->busy++;
++ /* Start port if we use it as input */
++ mode = IO_EXTRACT(R_SYNC_SERIAL1_CTRL, mode, port->ctrl_data_shadow);
++ if (mode == IO_STATE_VALUE(R_SYNC_SERIAL1_CTRL, mode, master_input) ||
++ mode == IO_STATE_VALUE(R_SYNC_SERIAL1_CTRL, mode, slave_input) ||
++ mode == IO_STATE_VALUE(R_SYNC_SERIAL1_CTRL, mode, master_bidir) ||
++ mode == IO_STATE_VALUE(R_SYNC_SERIAL1_CTRL, mode, slave_bidir)) {
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, clk_halt, running);
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, tr_enable, enable);
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, rec_enable, enable);
++ port->started = 1;
++ *port->ctrl_data = port->ctrl_data_shadow;
++ if (!port->use_dma)
++ *R_IRQ_MASK1_SET = 1 << port->data_avail_bit;
++ DEBUG(printk("sser%d rec started\n", dev));
++ }
++ return 0;
++}
++
++static int sync_serial_release(struct inode *inode, struct file *file)
++{
++ int dev = MINOR(inode->i_rdev);
++ sync_port* port;
++
++ if (dev < 0 || dev >= NUMBER_OF_PORTS || !ports[dev].enabled)
++ {
++ DEBUG(printk("Invalid minor %d\n", dev));
++ return -ENODEV;
++ }
++ port = &ports[dev];
++ if (port->busy)
++ port->busy--;
++ if (!port->busy)
++ *R_IRQ_MASK1_CLR = ((1 << port->data_avail_bit) |
++ (1 << port->transmitter_ready_bit));
++
++ return 0;
++}
++
++
++
++static unsigned int sync_serial_poll(struct file *file, poll_table *wait)
++{
++ int dev = MINOR(file->f_dentry->d_inode->i_rdev);
++ unsigned int mask = 0;
++ sync_port* port;
++ DEBUGPOLL( static unsigned int prev_mask = 0; );
++
++ port = &ports[dev];
++ poll_wait(file, &port->out_wait_q, wait);
++ poll_wait(file, &port->in_wait_q, wait);
++ /* Some room to write */
++ if (port->out_count < OUT_BUFFER_SIZE)
++ mask |= POLLOUT | POLLWRNORM;
++ /* At least an inbufchunk of data */
++ if (sync_data_avail(port) >= port->inbufchunk)
++ mask |= POLLIN | POLLRDNORM;
++
++ DEBUGPOLL(if (mask != prev_mask)
++ printk("sync_serial_poll: mask 0x%08X %s %s\n", mask,
++ mask&POLLOUT?"POLLOUT":"", mask&POLLIN?"POLLIN":"");
++ prev_mask = mask;
++ );
++ return mask;
++}
++
++static int sync_serial_ioctl(struct inode *inode, struct file *file,
++ unsigned int cmd, unsigned long arg)
++{
++ int return_val = 0;
++ unsigned long flags;
++
++ int dev = MINOR(file->f_dentry->d_inode->i_rdev);
++ sync_port* port;
++
++ if (dev < 0 || dev >= NUMBER_OF_PORTS || !ports[dev].enabled)
++ {
++ DEBUG(printk("Invalid minor %d\n", dev));
++ return -1;
++ }
++ port = &ports[dev];
++
++ local_irq_save(flags);
++ /* Disable port while changing config */
++ if (dev)
++ {
++ if (port->use_dma) {
++ RESET_DMA(4); WAIT_DMA(4);
++ port->tr_running = 0;
++ port->out_count = 0;
++ port->outp = port->out_buffer;
++ *R_DMA_CH4_CLR_INTR = IO_STATE(R_DMA_CH4_CLR_INTR, clr_eop, do) |
++ IO_STATE(R_DMA_CH4_CLR_INTR, clr_descr, do);
++ }
++ SETS(gen_config_ii_shadow, R_GEN_CONFIG_II, sermode3, async);
++ }
++ else
++ {
++ if (port->use_dma) {
++ RESET_DMA(8); WAIT_DMA(8);
++ port->tr_running = 0;
++ port->out_count = 0;
++ port->outp = port->out_buffer;
++ *R_DMA_CH8_CLR_INTR = IO_STATE(R_DMA_CH8_CLR_INTR, clr_eop, do) |
++ IO_STATE(R_DMA_CH8_CLR_INTR, clr_descr, do);
++ }
++ SETS(gen_config_ii_shadow, R_GEN_CONFIG_II, sermode1, async);
++ }
++ *R_GEN_CONFIG_II = gen_config_ii_shadow;
++ local_irq_restore(flags);
++
++ switch(cmd)
++ {
++ case SSP_SPEED:
++ if (GET_SPEED(arg) == CODEC)
++ {
++ if (dev)
++ SETS(sync_serial_prescale_shadow, R_SYNC_SERIAL_PRESCALE, clk_sel_u3, codec);
++ else
++ SETS(sync_serial_prescale_shadow, R_SYNC_SERIAL_PRESCALE, clk_sel_u1, codec);
++
++ SETF(sync_serial_prescale_shadow, R_SYNC_SERIAL_PRESCALE, prescaler, GET_FREQ(arg));
++ SETF(sync_serial_prescale_shadow, R_SYNC_SERIAL_PRESCALE, frame_rate, GET_FRAME_RATE(arg));
++ SETF(sync_serial_prescale_shadow, R_SYNC_SERIAL_PRESCALE, word_rate, GET_WORD_RATE(arg));
++ }
++ else
++ {
++ SETF(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, tr_baud, GET_SPEED(arg));
++ if (dev)
++ SETS(sync_serial_prescale_shadow, R_SYNC_SERIAL_PRESCALE, clk_sel_u3, baudrate);
++ else
++ SETS(sync_serial_prescale_shadow, R_SYNC_SERIAL_PRESCALE, clk_sel_u1, baudrate);
++ }
++ break;
++ case SSP_MODE:
++ if (arg > 5)
++ return -EINVAL;
++ if (arg == MASTER_OUTPUT || arg == SLAVE_OUTPUT)
++ *R_IRQ_MASK1_CLR = 1 << port->data_avail_bit;
++ else if (!port->use_dma)
++ *R_IRQ_MASK1_SET = 1 << port->data_avail_bit;
++ SETF(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, mode, arg);
++ break;
++ case SSP_FRAME_SYNC:
++ if (arg & NORMAL_SYNC)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, f_synctype, normal);
++ else if (arg & EARLY_SYNC)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, f_synctype, early);
++
++ if (arg & BIT_SYNC)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, f_syncsize, bit);
++ else if (arg & WORD_SYNC)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, f_syncsize, word);
++ else if (arg & EXTENDED_SYNC)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, f_syncsize, extended);
++
++ if (arg & SYNC_ON)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, f_sync, on);
++ else if (arg & SYNC_OFF)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, f_sync, off);
++
++ if (arg & WORD_SIZE_8)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, wordsize, size8bit);
++ else if (arg & WORD_SIZE_12)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, wordsize, size12bit);
++ else if (arg & WORD_SIZE_16)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, wordsize, size16bit);
++ else if (arg & WORD_SIZE_24)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, wordsize, size24bit);
++ else if (arg & WORD_SIZE_32)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, wordsize, size32bit);
++
++ if (arg & BIT_ORDER_MSB)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, bitorder, msb);
++ else if (arg & BIT_ORDER_LSB)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, bitorder, lsb);
++
++ if (arg & FLOW_CONTROL_ENABLE)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, flow_ctrl, enabled);
++ else if (arg & FLOW_CONTROL_DISABLE)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, flow_ctrl, disabled);
++
++ if (arg & CLOCK_NOT_GATED)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, clk_mode, normal);
++ else if (arg & CLOCK_GATED)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, clk_mode, gated);
++
++ break;
++ case SSP_IPOLARITY:
++ /* NOTE!! negedge is considered NORMAL */
++ if (arg & CLOCK_NORMAL)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, clk_polarity, neg);
++ else if (arg & CLOCK_INVERT)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, clk_polarity, pos);
++
++ if (arg & FRAME_NORMAL)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, frame_polarity, normal);
++ else if (arg & FRAME_INVERT)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, frame_polarity, inverted);
++
++ if (arg & STATUS_NORMAL)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, status_polarity, normal);
++ else if (arg & STATUS_INVERT)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, status_polarity, inverted);
++ break;
++ case SSP_OPOLARITY:
++ if (arg & CLOCK_NORMAL)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, clk_driver, normal);
++ else if (arg & CLOCK_INVERT)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, clk_driver, inverted);
++
++ if (arg & FRAME_NORMAL)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, frame_driver, normal);
++ else if (arg & FRAME_INVERT)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, frame_driver, inverted);
++
++ if (arg & STATUS_NORMAL)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, status_driver, normal);
++ else if (arg & STATUS_INVERT)
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, status_driver, inverted);
++ break;
++ case SSP_SPI:
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, flow_ctrl, disabled);
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, bitorder, msb);
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, wordsize, size8bit);
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, f_sync, on);
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, f_syncsize, word);
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, f_synctype, normal);
++ if (arg & SPI_SLAVE)
++ {
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, frame_polarity, inverted);
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, clk_polarity, neg);
++ SETF(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, mode, SLAVE_INPUT);
++ }
++ else
++ {
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, frame_driver, inverted);
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, clk_driver, inverted);
++ SETF(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, mode, MASTER_OUTPUT);
++ }
++ break;
++ case SSP_INBUFCHUNK:
++#if 0
++ if (arg > port->in_buffer_size/NUM_IN_DESCR)
++ return -EINVAL;
++ port->inbufchunk = arg;
++ /* Make sure in_buffer_size is a multiple of inbufchunk */
++ port->in_buffer_size = (port->in_buffer_size/port->inbufchunk) * port->inbufchunk;
++ DEBUG(printk("inbufchunk %i in_buffer_size: %i\n", port->inbufchunk, port->in_buffer_size));
++ if (port->use_dma) {
++ if (port->port_nbr == 0) {
++ RESET_DMA(9);
++ WAIT_DMA(9);
++ } else {
++ RESET_DMA(5);
++ WAIT_DMA(5);
++ }
++ start_dma_in(port);
++ }
++#endif
++ break;
++ default:
++ return_val = -1;
++ }
++ /* Make sure we write the config without interruption */
++ local_irq_save(flags);
++ /* Set config and enable port */
++ *port->ctrl_data = port->ctrl_data_shadow;
++ nop(); nop(); nop(); nop();
++ *R_SYNC_SERIAL_PRESCALE = sync_serial_prescale_shadow;
++ nop(); nop(); nop(); nop();
++ if (dev)
++ SETS(gen_config_ii_shadow, R_GEN_CONFIG_II, sermode3, sync);
++ else
++ SETS(gen_config_ii_shadow, R_GEN_CONFIG_II, sermode1, sync);
++
++ *R_GEN_CONFIG_II = gen_config_ii_shadow;
++ /* Reset DMA. At readout from serial port the data could be shifted
++ * one byte if not resetting DMA.
++ */
++ if (port->use_dma) {
++ if (port->port_nbr == 0) {
++ RESET_DMA(9);
++ WAIT_DMA(9);
++ } else {
++ RESET_DMA(5);
++ WAIT_DMA(5);
++ }
++ start_dma_in(port);
++ }
++ local_irq_restore(flags);
++ return return_val;
++}
++
++
++static ssize_t sync_serial_write(struct file * file, const char * buf,
++ size_t count, loff_t *ppos)
++{
++ int dev = MINOR(file->f_dentry->d_inode->i_rdev);
++ DECLARE_WAITQUEUE(wait, current);
++ sync_port *port;
++ unsigned long flags;
++ unsigned long c, c1;
++ unsigned long free_outp;
++ unsigned long outp;
++ unsigned long out_buffer;
++
++ if (dev < 0 || dev >= NUMBER_OF_PORTS || !ports[dev].enabled)
++ {
++ DEBUG(printk("Invalid minor %d\n", dev));
++ return -ENODEV;
++ }
++ port = &ports[dev];
++
++ DEBUGWRITE(printk("W d%d c %lu (%d/%d)\n", port->port_nbr, count, port->out_count, OUT_BUFFER_SIZE));
++ /* Space to end of buffer */
++ /*
++ * out_buffer <c1>012345<- c ->OUT_BUFFER_SIZE
++ * outp^ +out_count
++ ^free_outp
++ * out_buffer 45<- c ->0123OUT_BUFFER_SIZE
++ * +out_count outp^
++ * free_outp
++ *
++ */
++
++ /* Read variables that may be updated by interrupts */
++ local_irq_save(flags);
++ count = count > OUT_BUFFER_SIZE - port->out_count ? OUT_BUFFER_SIZE - port->out_count : count;
++ outp = (unsigned long)port->outp;
++ free_outp = outp + port->out_count;
++ local_irq_restore(flags);
++ out_buffer = (unsigned long)port->out_buffer;
++
++ /* Find out where and how much to write */
++ if (free_outp >= out_buffer + OUT_BUFFER_SIZE)
++ free_outp -= OUT_BUFFER_SIZE;
++ if (free_outp >= outp)
++ c = out_buffer + OUT_BUFFER_SIZE - free_outp;
++ else
++ c = outp - free_outp;
++ if (c > count)
++ c = count;
++
++// DEBUGWRITE(printk("w op %08lX fop %08lX c %lu\n", outp, free_outp, c));
++ if (copy_from_user((void*)free_outp, buf, c))
++ return -EFAULT;
++
++ if (c != count) {
++ buf += c;
++ c1 = count - c;
++ DEBUGWRITE(printk("w2 fi %lu c %lu c1 %lu\n", free_outp-out_buffer, c, c1));
++ if (copy_from_user((void*)out_buffer, buf, c1))
++ return -EFAULT;
++ }
++ local_irq_save(flags);
++ port->out_count += count;
++ local_irq_restore(flags);
++
++ /* Make sure transmitter/receiver is running */
++ if (!port->started)
++ {
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, clk_halt, running);
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, tr_enable, enable);
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, rec_enable, enable);
++ port->started = 1;
++ }
++
++ *port->ctrl_data = port->ctrl_data_shadow;
++
++ if (file->f_flags & O_NONBLOCK) {
++ local_irq_save(flags);
++ if (!port->tr_running) {
++ if (!port->use_dma) {
++ /* Start sender by writing data */
++ send_word(port);
++ /* and enable transmitter ready IRQ */
++ *R_IRQ_MASK1_SET = 1 << port->transmitter_ready_bit;
++ } else {
++ start_dma(port, (unsigned char* volatile )port->outp, c);
++ }
++ }
++ local_irq_restore(flags);
++ DEBUGWRITE(printk("w d%d c %lu NB\n",
++ port->port_nbr, count));
++ return count;
++ }
++
++ /* Sleep until all sent */
++
++ add_wait_queue(&port->out_wait_q, &wait);
++ set_current_state(TASK_INTERRUPTIBLE);
++ local_irq_save(flags);
++ if (!port->tr_running) {
++ if (!port->use_dma) {
++ /* Start sender by writing data */
++ send_word(port);
++ /* and enable transmitter ready IRQ */
++ *R_IRQ_MASK1_SET = 1 << port->transmitter_ready_bit;
++ } else {
++ start_dma(port, port->outp, c);
++ }
++ }
++ local_irq_restore(flags);
++ schedule();
++ set_current_state(TASK_RUNNING);
++ remove_wait_queue(&port->out_wait_q, &wait);
++ if (signal_pending(current))
++ {
++ return -EINTR;
++ }
++ DEBUGWRITE(printk("w d%d c %lu\n", port->port_nbr, count));
++ return count;
++}
++
++static ssize_t sync_serial_read(struct file * file, char * buf,
++ size_t count, loff_t *ppos)
++{
++ int dev = MINOR(file->f_dentry->d_inode->i_rdev);
++ int avail;
++ sync_port *port;
++ unsigned char* start;
++ unsigned char* end;
++ unsigned long flags;
++
++ if (dev < 0 || dev >= NUMBER_OF_PORTS || !ports[dev].enabled)
++ {
++ DEBUG(printk("Invalid minor %d\n", dev));
++ return -ENODEV;
++ }
++ port = &ports[dev];
++
++ DEBUGREAD(printk("R%d c %d ri %lu wi %lu /%lu\n", dev, count, port->readp - port->flip, port->writep - port->flip, port->in_buffer_size));
++
++ if (!port->started)
++ {
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, clk_halt, running);
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, tr_enable, enable);
++ SETS(port->ctrl_data_shadow, R_SYNC_SERIAL1_CTRL, rec_enable, enable);
++ port->started = 1;
++ }
++ *port->ctrl_data = port->ctrl_data_shadow;
++
++
++ /* Calculate number of available bytes */
++ /* Save pointers to avoid that they are modified by interrupt */
++ local_irq_save(flags);
++ start = (unsigned char*)port->readp; /* cast away volatile */
++ end = (unsigned char*)port->writep; /* cast away volatile */
++ local_irq_restore(flags);
++ while ((start == end) && !port->full) /* No data */
++ {
++ if (file->f_flags & O_NONBLOCK)
++ {
++ return -EAGAIN;
++ }
++
++ interruptible_sleep_on(&port->in_wait_q);
++ if (signal_pending(current))
++ {
++ return -EINTR;
++ }
++ local_irq_save(flags);
++ start = (unsigned char*)port->readp; /* cast away volatile */
++ end = (unsigned char*)port->writep; /* cast away volatile */
++ local_irq_restore(flags);
++ }
++
++ /* Lazy read, never return wrapped data. */
++ if (port->full)
++ avail = port->in_buffer_size;
++ else if (end > start)
++ avail = end - start;
++ else
++ avail = port->flip + port->in_buffer_size - start;
++
++ count = count > avail ? avail : count;
++ if (copy_to_user(buf, start, count))
++ return -EFAULT;
++ /* Disable interrupts while updating readp */
++ local_irq_save(flags);
++ port->readp += count;
++ if (port->readp >= port->flip + port->in_buffer_size) /* Wrap? */
++ port->readp = port->flip;
++ port->full = 0;
++ local_irq_restore(flags);
++ DEBUGREAD(printk("r %d\n", count));
++ return count;
++}
++
++static void send_word(sync_port* port)
++{
++ switch(IO_EXTRACT(R_SYNC_SERIAL1_CTRL, wordsize, port->ctrl_data_shadow))
++ {
++ case IO_STATE_VALUE(R_SYNC_SERIAL1_CTRL, wordsize, size8bit):
++ port->out_count--;
++ *port->data_out = *port->outp++;
++ if (port->outp >= port->out_buffer + OUT_BUFFER_SIZE)
++ port->outp = port->out_buffer;
++ break;
++ case IO_STATE_VALUE(R_SYNC_SERIAL1_CTRL, wordsize, size12bit):
++ {
++ int data = (*port->outp++) << 8;
++ data |= *port->outp++;
++ port->out_count-=2;
++ *port->data_out = data;
++ if (port->outp >= port->out_buffer + OUT_BUFFER_SIZE)
++ port->outp = port->out_buffer;
++ }
++ break;
++ case IO_STATE_VALUE(R_SYNC_SERIAL1_CTRL, wordsize, size16bit):
++ port->out_count-=2;
++ *port->data_out = *(unsigned short *)port->outp;
++ port->outp+=2;
++ if (port->outp >= port->out_buffer + OUT_BUFFER_SIZE)
++ port->outp = port->out_buffer;
++ break;
++ case IO_STATE_VALUE(R_SYNC_SERIAL1_CTRL, wordsize, size24bit):
++ port->out_count-=3;
++ *port->data_out = *(unsigned int *)port->outp;
++ port->outp+=3;
++ if (port->outp >= port->out_buffer + OUT_BUFFER_SIZE)
++ port->outp = port->out_buffer;
++ break;
++ case IO_STATE_VALUE(R_SYNC_SERIAL1_CTRL, wordsize, size32bit):
++ port->out_count-=4;
++ *port->data_out = *(unsigned int *)port->outp;
++ port->outp+=4;
++ if (port->outp >= port->out_buffer + OUT_BUFFER_SIZE)
++ port->outp = port->out_buffer;
++ break;
++ }
++}
++
++
++static void start_dma(struct sync_port* port, const char* data, int count)
++{
++ port->tr_running = 1;
++ port->out_descr.hw_len = 0;
++ port->out_descr.next = 0;
++ port->out_descr.ctrl = d_eol | d_eop; /* No d_wait to avoid glitches */
++ port->out_descr.sw_len = count;
++ port->out_descr.buf = virt_to_phys((char*)data);
++ port->out_descr.status = 0;
++
++ *port->output_dma_first = virt_to_phys(&port->out_descr);
++ *port->output_dma_cmd = IO_STATE(R_DMA_CH0_CMD, cmd, start);
++ DEBUGTXINT(printk("dma %08lX c %d\n", (unsigned long)data, count));
++}
++
++static void start_dma_in(sync_port* port)
++{
++ int i;
++ unsigned long buf;
++ port->writep = port->flip;
++
++ if (port->writep > port->flip + port->in_buffer_size)
++ {
++ panic("Offset too large in sync serial driver\n");
++ return;
++ }
++ buf = virt_to_phys(port->in_buffer);
++ for (i = 0; i < NUM_IN_DESCR; i++) {
++ port->in_descr[i].sw_len = port->inbufchunk;
++ port->in_descr[i].ctrl = d_int;
++ port->in_descr[i].next = virt_to_phys(&port->in_descr[i+1]);
++ port->in_descr[i].buf = buf;
++ port->in_descr[i].hw_len = 0;
++ port->in_descr[i].status = 0;
++ port->in_descr[i].fifo_len = 0;
++ buf += port->inbufchunk;
++ prepare_rx_descriptor(&port->in_descr[i]);
++ }
++ /* Link the last descriptor to the first */
++ port->in_descr[i-1].next = virt_to_phys(&port->in_descr[0]);
++ port->in_descr[i-1].ctrl |= d_eol;
++ port->next_rx_desc = &port->in_descr[0];
++ port->prev_rx_desc = &port->in_descr[NUM_IN_DESCR - 1];
++ *port->input_dma_first = virt_to_phys(port->next_rx_desc);
++ *port->input_dma_cmd = IO_STATE(R_DMA_CH0_CMD, cmd, start);
++}
++
++#ifdef SYNC_SER_DMA
++static irqreturn_t tr_interrupt(int irq, void *dev_id)
++{
++ unsigned long ireg = *R_IRQ_MASK2_RD;
++ int i;
++ struct etrax_dma_descr *descr;
++ unsigned int sentl;
++ int handled = 0;
++
++ for (i = 0; i < NUMBER_OF_PORTS; i++)
++ {
++ sync_port *port = &ports[i];
++ if (!port->enabled || !port->use_dma )
++ continue;
++
++ if (ireg & (1 << port->output_dma_bit)) /* IRQ active for the port? */
++ {
++ handled = 1;
++
++ /* Clear IRQ */
++ *port->output_dma_clr_irq =
++ IO_STATE(R_DMA_CH0_CLR_INTR, clr_eop, do) |
++ IO_STATE(R_DMA_CH0_CLR_INTR, clr_descr, do);
++
++ descr = &port->out_descr;
++ if (!(descr->status & d_stop)) {
++ sentl = descr->sw_len;
++ } else
++ /* otherwise we find the amount of data sent here */
++ sentl = descr->hw_len;
++ port->out_count -= sentl;
++ port->outp += sentl;
++ if (port->outp >= port->out_buffer + OUT_BUFFER_SIZE)
++ port->outp = port->out_buffer;
++ if (port->out_count) {
++ int c;
++ c = port->out_buffer + OUT_BUFFER_SIZE - port->outp;
++ if (c > port->out_count)
++ c = port->out_count;
++ DEBUGTXINT(printk("tx_int DMAWRITE %i %i\n", sentl, c));
++ start_dma(port, port->outp, c);
++ } else {
++ DEBUGTXINT(printk("tx_int DMA stop %i\n", sentl));
++ port->tr_running = 0;
++ }
++ wake_up_interruptible(&port->out_wait_q); /* wake up the waiting process */
++ }
++ }
++ return IRQ_RETVAL(handled);
++} /* tr_interrupt */
++
++static irqreturn_t rx_interrupt(int irq, void *dev_id)
++{
++ unsigned long ireg = *R_IRQ_MASK2_RD;
++ int i;
++ int handled = 0;
++
++ for (i = 0; i < NUMBER_OF_PORTS; i++)
++ {
++ sync_port *port = &ports[i];
++
++ if (!port->enabled || !port->use_dma )
++ continue;
++
++ if (ireg & (1 << port->input_dma_descr_bit)) /* Descriptor interrupt */
++ {
++ handled = 1;
++ while (*port->input_dma_descr != virt_to_phys(port->next_rx_desc)) {
++
++ if (port->writep + port->inbufchunk > port->flip + port->in_buffer_size) {
++ int first_size = port->flip + port->in_buffer_size - port->writep;
++ memcpy(port->writep, phys_to_virt(port->next_rx_desc->buf), first_size);
++ memcpy(port->flip, phys_to_virt(port->next_rx_desc->buf+first_size), port->inbufchunk - first_size);
++ port->writep = port->flip + port->inbufchunk - first_size;
++ } else {
++ memcpy(port->writep, phys_to_virt(port->next_rx_desc->buf), port->inbufchunk);
++ port->writep += port->inbufchunk;
++ if (port->writep >= port->flip + port->in_buffer_size)
++ port->writep = port->flip;
++ }
++ if (port->writep == port->readp)
++ {
++ port->full = 1;
++ }
++
++ prepare_rx_descriptor(port->next_rx_desc);
++ port->next_rx_desc->ctrl |= d_eol;
++ port->prev_rx_desc->ctrl &= ~d_eol;
++ port->prev_rx_desc = phys_to_virt((unsigned)port->next_rx_desc);
++ port->next_rx_desc = phys_to_virt((unsigned)port->next_rx_desc->next);
++ wake_up_interruptible(&port->in_wait_q); /* wake up the waiting process */
++ *port->input_dma_cmd = IO_STATE(R_DMA_CH1_CMD, cmd, restart);
++ /* DMA has reached end of descriptor */
++ *port->input_dma_clr_irq =
++ IO_STATE(R_DMA_CH0_CLR_INTR, clr_descr, do);
++ }
++ }
++ }
++
++ return IRQ_RETVAL(handled);
++} /* rx_interrupt */
++#endif /* SYNC_SER_DMA */
++
++#ifdef SYNC_SER_MANUAL
++static irqreturn_t manual_interrupt(int irq, void *dev_id)
++{
++ int i;
++ int handled = 0;
++
++ for (i = 0; i < NUMBER_OF_PORTS; i++)
++ {
++ sync_port* port = &ports[i];
++
++ if (!port->enabled || port->use_dma)
++ {
++ continue;
++ }
++
++ if (*R_IRQ_MASK1_RD & (1 << port->data_avail_bit)) /* Data received? */
++ {
++ handled = 1;
++ /* Read data */
++ switch(port->ctrl_data_shadow & IO_MASK(R_SYNC_SERIAL1_CTRL, wordsize))
++ {
++ case IO_STATE(R_SYNC_SERIAL1_CTRL, wordsize, size8bit):
++ *port->writep++ = *(volatile char *)port->data_in;
++ break;
++ case IO_STATE(R_SYNC_SERIAL1_CTRL, wordsize, size12bit):
++ {
++ int data = *(unsigned short *)port->data_in;
++ *port->writep = (data & 0x0ff0) >> 4;
++ *(port->writep + 1) = data & 0x0f;
++ port->writep+=2;
++ }
++ break;
++ case IO_STATE(R_SYNC_SERIAL1_CTRL, wordsize, size16bit):
++ *(unsigned short*)port->writep = *(volatile unsigned short *)port->data_in;
++ port->writep+=2;
++ break;
++ case IO_STATE(R_SYNC_SERIAL1_CTRL, wordsize, size24bit):
++ *(unsigned int*)port->writep = *port->data_in;
++ port->writep+=3;
++ break;
++ case IO_STATE(R_SYNC_SERIAL1_CTRL, wordsize, size32bit):
++ *(unsigned int*)port->writep = *port->data_in;
++ port->writep+=4;
++ break;
++ }
++
++ if (port->writep >= port->flip + port->in_buffer_size) /* Wrap? */
++ port->writep = port->flip;
++ if (port->writep == port->readp) {
++ /* receive buffer overrun, discard oldest data
++ */
++ port->readp++;
++ if (port->readp >= port->flip + port->in_buffer_size) /* Wrap? */
++ port->readp = port->flip;
++ }
++ if (sync_data_avail(port) >= port->inbufchunk)
++ wake_up_interruptible(&port->in_wait_q); /* Wake up application */
++ }
++
++ if (*R_IRQ_MASK1_RD & (1 << port->transmitter_ready_bit)) /* Transmitter ready? */
++ {
++ if (port->out_count > 0) /* More data to send */
++ send_word(port);
++ else /* transmission finished */
++ {
++ *R_IRQ_MASK1_CLR = 1 << port->transmitter_ready_bit; /* Turn off IRQ */
++ wake_up_interruptible(&port->out_wait_q); /* Wake up application */
++ }
++ }
++ }
++ return IRQ_RETVAL(handled);
++}
++#endif
++
++module_init(etrax_sync_serial_init);
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/kernel/debugport.c linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/debugport.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/kernel/debugport.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/debugport.c 2006-10-30 16:17:57.000000000 +0100
+@@ -12,6 +12,34 @@
+ * init_etrax_debug()
+ *
+ * $Log: debugport.c,v $
++ * Revision 1.36 2006/10/30 15:17:57 pkj
++ * Avoid a compiler warning.
++ *
++ * Revision 1.35 2006/10/13 12:43:11 starvik
++ * Merge of 2.6.18
++ *
++ * Revision 1.34 2006/09/29 10:32:01 starvik
++ * Don't reference serial driver if not present
++ *
++ * Revision 1.33 2006/09/08 07:59:29 karljope
++ * Makes v10 boot again when watchdog is enabled
++ *
++ * Revision 1.32 2006/06/20 08:23:36 pkj
++ * Reverted incorrect merge.
++ *
++ * Revision 1.31 2006/05/17 12:22:10 edgar
++ * check port before disable ints
++ *
++ * Revision 1.30 2005/11/15 12:08:42 starvik
++ * Set index when no debug port is defined
++ *
++ * Revision 1.29 2005/08/29 07:32:17 starvik
++ * Merge of 2.6.13
++ *
++ * Revision 1.28 2005/07/02 12:29:35 starvik
++ * Use the generic oops_in_progress instead of the raw_printk hack.
++ * Moved some functions to achr-independent code.
++ *
+ * Revision 1.27 2005/06/10 10:34:14 starvik
+ * Real console support
+ *
+@@ -112,6 +140,8 @@
+ #include <asm/arch/svinto.h>
+ #include <asm/io.h> /* Get SIMCOUT. */
+
++extern void reset_watchdog(void);
++
+ struct dbg_port
+ {
+ unsigned int index;
+@@ -188,7 +218,9 @@
+ }
+ };
+
++#ifdef CONFIG_ETRAX_SERIAL
+ extern struct tty_driver *serial_driver;
++#endif
+
+ struct dbg_port* port =
+ #if defined(CONFIG_ETRAX_DEBUG_PORT0)
+@@ -368,11 +400,12 @@
+ {
+ int i;
+ unsigned long flags;
+- local_irq_save(flags);
+-
++
+ if (!port)
+ return;
+-
++
++ local_irq_save(flags);
++
+ /* Send data */
+ for (i = 0; i < len; i++) {
+ /* LF -> CRLF */
+@@ -386,26 +419,16 @@
+ ;
+ *port->write = buf[i];
+ }
+- local_irq_restore(flags);
+-}
+
+-int raw_printk(const char *fmt, ...)
+-{
+- static char buf[1024];
+- int printed_len;
+- static int first = 1;
+- if (first) {
+- /* Force reinitialization of the port to get manual mode. */
+- port->started = 0;
+- start_port(port);
+- first = 0;
+- }
+- va_list args;
+- va_start(args, fmt);
+- printed_len = vsnprintf(buf, sizeof(buf), fmt, args);
+- va_end(args);
+- console_write_direct(NULL, buf, strlen(buf));
+- return printed_len;
++ /*
++ * Feed the watchdog, otherwise it will reset the chip during boot.
++ * The time to send an ordinary boot message line (10-90 chars)
++ * varies between 1-8ms at 115200. What makes up for the additional
++ * 90ms that allows the watchdog to bite?
++ */
++ reset_watchdog();
++
++ local_irq_restore(flags);
+ }
+
+ static void
+@@ -500,6 +523,7 @@
+ return 0;
+ }
+
++
+ /* This is a dummy serial device that throws away anything written to it.
+ * This is used when no debug output is wanted.
+ */
+@@ -555,7 +579,13 @@
+ {
+ if (port)
+ *index = port->index;
++ else
++ *index = 0;
++#ifdef CONFIG_ETRAX_SERIAL
+ return port ? serial_driver : &dummy_driver;
++#else
++ return &dummy_driver;
++#endif
+ }
+
+ static struct console sercons = {
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/kernel/entry.S linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/entry.S
+--- linux-2.6.19.2.old/arch/cris/arch-v10/kernel/entry.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/entry.S 2007-01-09 10:36:17.000000000 +0100
+@@ -1,4 +1,4 @@
+-/* $Id: entry.S,v 1.28 2005/06/20 05:06:30 starvik Exp $
++/* $Id: entry.S,v 1.38 2007/01/09 09:36:17 starvik Exp $
+ *
+ * linux/arch/cris/entry.S
+ *
+@@ -7,6 +7,41 @@
+ * Authors: Bjorn Wesen (bjornw@axis.com)
+ *
+ * $Log: entry.S,v $
++ * Revision 1.38 2007/01/09 09:36:17 starvik
++ * Corrected kernel_execve
++ *
++ * Revision 1.37 2007/01/09 09:29:18 starvik
++ * Merge of Linux 2.6.19
++ *
++ * Revision 1.36 2006/12/08 13:08:54 orjanf
++ * Copied from Linux 2.4:
++ * * Return from an pin-generated NMI the same way as for other interrupts.
++ * * Reverse check order between external nmi and watchdog nmi to avoid false
++ * watchdog oops in case of a glitch on the nmi pin.
++ *
++ * Revision 1.35 2006/10/13 12:43:11 starvik
++ * Merge of 2.6.18
++ *
++ * Revision 1.34 2006/06/25 15:00:09 starvik
++ * Merge of Linux 2.6.17
++ *
++ * Revision 1.33 2006/05/19 12:23:09 orjanf
++ * * Moved blocking of ethernet rx/tx irq from ethernet interrupt handler to
++ * low-level asm interrupt handlers. Fixed in the multiple interrupt handler
++ * also. Copied from Linux 2.4.
++ *
++ * Revision 1.32 2006/03/23 14:53:57 starvik
++ * Corrected signal handling.
++ *
++ * Revision 1.31 2006/03/22 09:56:55 starvik
++ * Merge of Linux 2.6.16
++ *
++ * Revision 1.30 2005/10/31 08:48:03 starvik
++ * Merge of Linux 2.6.14
++ *
++ * Revision 1.29 2005/08/29 07:32:17 starvik
++ * Merge of 2.6.13
++ *
+ * Revision 1.28 2005/06/20 05:06:30 starvik
+ * Remove unnecessary diff to kernel.org tree
+ *
+@@ -500,9 +535,8 @@
+ ;; deal with pending signals and notify-resume requests
+
+ move.d $r9, $r10 ; do_notify_resume syscall/irq param
+- moveq 0, $r11 ; oldset param - 0 in this case
+- move.d $sp, $r12 ; the regs param
+- move.d $r1, $r13 ; the thread_info_flags parameter
++ move.d $sp, $r11 ; the regs param
++ move.d $r1, $r12 ; the thread_info_flags parameter
+ jsr do_notify_resume
+
+ ba _Rexit
+@@ -653,7 +687,7 @@
+ ;; special handlers for breakpoint and NMI
+ hwbreakpoint:
+ push $dccr
+- di
++ di
+ push $r10
+ push $r11
+ move.d [hw_bp_trig_ptr],$r10
+@@ -678,13 +712,19 @@
+ push $r10 ; push orig_r10
+ clear.d [$sp=$sp-4] ; frametype == 0, normal frame
+
++ ;; If there is a glitch on the NMI pin shorter than ~100ns
++ ;; (i.e. non-active by the time we get here) then the nmi_pin bit
++ ;; in R_IRQ_MASK0_RD will already be cleared. The watchdog_nmi bit
++ ;; is cleared by us however (when feeding the watchdog), which is why
++ ;; we use that bit to determine what brought us here.
++
+ move.d [R_IRQ_MASK0_RD], $r1 ; External NMI or watchdog?
+- and.d 0x80000000, $r1
+- beq wdog
++ and.d (1<<30), $r1
++ bne wdog
+ move.d $sp, $r10
+ jsr handle_nmi
+ setf m ; Enable NMI again
+- retb ; Return from NMI
++ ba _Rexit ; Return the standard way
+ nop
+ wdog:
+ #if defined(CONFIG_ETRAX_WATCHDOG) && !defined(CONFIG_SVINTO_SIM)
+@@ -774,23 +814,10 @@
+ movem $r13, [$sp]
+ push $r10 ; push orig_r10
+ clear.d [$sp=$sp-4] ; frametype == 0, normal frame
+-
+- moveq 2, $r2 ; first bit we care about is the timer0 irq
+- move.d [R_VECT_MASK_RD], $r0; read the irq bits that triggered the multiple irq
+- move.d $r0, [R_VECT_MASK_CLR] ; Block all active IRQs
+-1:
+- btst $r2, $r0 ; check for the irq given by bit r2
+- bpl 2f
+- move.d $r2, $r10 ; First argument to do_IRQ
+- move.d $sp, $r11 ; second argument to do_IRQ
+- jsr do_IRQ
+-2:
+- addq 1, $r2 ; next vector bit
+- cmp.b 32, $r2
+- bne 1b ; process all irq's up to and including number 31
+- moveq 0, $r9 ; make ret_from_intr realise we came from an ir
+-
+- move.d $r0, [R_VECT_MASK_SET] ; Unblock all the IRQs
++
++ move.d $sp, $r10
++ jsr do_multiple_IRQ
++
+ jump ret_from_intr
+
+ do_sigtrap:
+@@ -836,6 +863,13 @@
+ pop $r0 ; Restore r0.
+ ba do_sigtrap ; SIGTRAP the offending process.
+ pop $dccr ; Restore dccr in delay slot.
++
++ .global kernel_execve
++kernel_execve:
++ move.d __NR_execve, $r9
++ break 13
++ ret
++ nop
+
+ .data
+
+@@ -1135,7 +1169,38 @@
+ .long sys_add_key
+ .long sys_request_key
+ .long sys_keyctl
+-
++ .long sys_ioprio_set
++ .long sys_ioprio_get /* 290 */
++ .long sys_inotify_init
++ .long sys_inotify_add_watch
++ .long sys_inotify_rm_watch
++ .long sys_migrate_pages
++ .long sys_openat /* 295 */
++ .long sys_mkdirat
++ .long sys_mknodat
++ .long sys_fchownat
++ .long sys_futimesat
++ .long sys_fstatat64 /* 300 */
++ .long sys_unlinkat
++ .long sys_renameat
++ .long sys_linkat
++ .long sys_symlinkat
++ .long sys_readlinkat /* 305 */
++ .long sys_fchmodat
++ .long sys_faccessat
++ .long sys_pselect6
++ .long sys_ppoll
++ .long sys_unshare /* 310 */
++ .long sys_set_robust_list
++ .long sys_get_robust_list
++ .long sys_splice
++ .long sys_sync_file_range
++ .long sys_tee /* 315 */
++ .long sys_vmsplice
++ .long sys_move_pages
++ .long sys_getcpu
++ .long sys_epoll_pwait
++
+ /*
+ * NOTE!! This doesn't have to be exact - we just have
+ * to make sure we have _enough_ of the "sys_ni_syscall"
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/kernel/fasttimer.c linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/fasttimer.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/kernel/fasttimer.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/fasttimer.c 2007-02-05 12:54:34.000000000 +0100
+@@ -1,97 +1,10 @@
+-/* $Id: fasttimer.c,v 1.9 2005/03/04 08:16:16 starvik Exp $
++/*
+ * linux/arch/cris/kernel/fasttimer.c
+ *
+ * Fast timers for ETRAX100/ETRAX100LX
+ * This may be useful in other OS than Linux so use 2 space indentation...
+ *
+- * $Log: fasttimer.c,v $
+- * Revision 1.9 2005/03/04 08:16:16 starvik
+- * Merge of Linux 2.6.11.
+- *
+- * Revision 1.8 2005/01/05 06:09:29 starvik
+- * cli()/sti() will be obsolete in 2.6.11.
+- *
+- * Revision 1.7 2005/01/03 13:35:46 starvik
+- * Removed obsolete stuff.
+- * Mark fast timer IRQ as not shared.
+- *
+- * Revision 1.6 2004/05/14 10:18:39 starvik
+- * Export fast_timer_list
+- *
+- * Revision 1.5 2004/05/14 07:58:01 starvik
+- * Merge of changes from 2.4
+- *
+- * Revision 1.4 2003/07/04 08:27:41 starvik
+- * Merge of Linux 2.5.74
+- *
+- * Revision 1.3 2002/12/12 08:26:32 starvik
+- * Don't use C-comments inside CVS comments
+- *
+- * Revision 1.2 2002/12/11 15:42:02 starvik
+- * Extracted v10 (ETRAX 100LX) specific stuff from arch/cris/kernel/
+- *
+- * Revision 1.1 2002/11/18 07:58:06 starvik
+- * Fast timers (from Linux 2.4)
+- *
+- * Revision 1.5 2002/10/15 06:21:39 starvik
+- * Added call to init_waitqueue_head
+- *
+- * Revision 1.4 2002/05/28 17:47:59 johana
+- * Added del_fast_timer()
+- *
+- * Revision 1.3 2002/05/28 16:16:07 johana
+- * Handle empty fast_timer_list
+- *
+- * Revision 1.2 2002/05/27 15:38:42 johana
+- * Made it compile without warnings on Linux 2.4.
+- * (includes, wait_queue, PROC_FS and snprintf)
+- *
+- * Revision 1.1 2002/05/27 15:32:25 johana
+- * arch/etrax100/kernel/fasttimer.c v1.8 from the elinux tree.
+- *
+- * Revision 1.8 2001/11/27 13:50:40 pkj
+- * Disable interrupts while stopping the timer and while modifying the
+- * list of active timers in timer1_handler() as it may be interrupted
+- * by other interrupts (e.g., the serial interrupt) which may add fast
+- * timers.
+- *
+- * Revision 1.7 2001/11/22 11:50:32 pkj
+- * * Only store information about the last 16 timers.
+- * * proc_fasttimer_read() now uses an allocated buffer, since it
+- * requires more space than just a page even for only writing the
+- * last 16 timers. The buffer is only allocated on request, so
+- * unless /proc/fasttimer is read, it is never allocated.
+- * * Renamed fast_timer_started to fast_timers_started to match
+- * fast_timers_added and fast_timers_expired.
+- * * Some clean-up.
+- *
+- * Revision 1.6 2000/12/13 14:02:08 johana
+- * Removed volatile for fast_timer_list
+- *
+- * Revision 1.5 2000/12/13 13:55:35 johana
+- * Added DEBUG_LOG, added som cli() and cleanup
+- *
+- * Revision 1.4 2000/12/05 13:48:50 johana
+- * Added range check when writing proc file, modified timer int handling
+- *
+- * Revision 1.3 2000/11/23 10:10:20 johana
+- * More debug/logging possibilities.
+- * Moved GET_JIFFIES_USEC() to timex.h and time.c
+- *
+- * Revision 1.2 2000/11/01 13:41:04 johana
+- * Clean up and bugfixes.
+- * Created new do_gettimeofday_fast() that gets a timeval struct
+- * with time based on jiffies and *R_TIMER0_DATA, uses a table
+- * for fast conversion of timer value to microseconds.
+- * (Much faster the standard do_gettimeofday() and we don't really
+- * wan't to use the true time - we wan't the "uptime" so timers don't screw up
+- * when we change the time.
+- * TODO: Add efficient support for continuous timers as well.
+- *
+- * Revision 1.1 2000/10/26 15:49:16 johana
+- * Added fasttimer, highresolution timers.
+- *
+- * Copyright (C) 2000,2001 2002 Axis Communications AB, Lund, Sweden
++ * Copyright (C) 2000-2006 Axis Communications AB, Lund, Sweden
+ */
+
+ #include <linux/errno.h>
+@@ -136,13 +49,13 @@
+
+ #define __INLINE__ inline
+
+-static int fast_timer_running = 0;
+-static int fast_timers_added = 0;
+-static int fast_timers_started = 0;
+-static int fast_timers_expired = 0;
+-static int fast_timers_deleted = 0;
+-static int fast_timer_is_init = 0;
+-static int fast_timer_ints = 0;
++static unsigned int fast_timer_running = 0;
++static unsigned int fast_timers_added = 0;
++static unsigned int fast_timers_started = 0;
++static unsigned int fast_timers_expired = 0;
++static unsigned int fast_timers_deleted = 0;
++static unsigned int fast_timer_is_init = 0;
++static unsigned int fast_timer_ints = 0;
+
+ struct fast_timer *fast_timer_list = NULL;
+
+@@ -150,8 +63,8 @@
+ #define DEBUG_LOG_MAX 128
+ static const char * debug_log_string[DEBUG_LOG_MAX];
+ static unsigned long debug_log_value[DEBUG_LOG_MAX];
+-static int debug_log_cnt = 0;
+-static int debug_log_cnt_wrapped = 0;
++static unsigned int debug_log_cnt = 0;
++static unsigned int debug_log_cnt_wrapped = 0;
+
+ #define DEBUG_LOG(string, value) \
+ { \
+@@ -206,41 +119,25 @@
+ int timer_delay_settings[NUM_TIMER_STATS];
+
+ /* Not true gettimeofday, only checks the jiffies (uptime) + useconds */
+-void __INLINE__ do_gettimeofday_fast(struct timeval *tv)
++void __INLINE__ do_gettimeofday_fast(struct fasttime_t *tv)
+ {
+- unsigned long sec = jiffies;
+- unsigned long usec = GET_JIFFIES_USEC();
+-
+- usec += (sec % HZ) * (1000000 / HZ);
+- sec = sec / HZ;
+-
+- if (usec > 1000000)
+- {
+- usec -= 1000000;
+- sec++;
+- }
+- tv->tv_sec = sec;
+- tv->tv_usec = usec;
++ tv->tv_jiff = jiffies;
++ tv->tv_usec = GET_JIFFIES_USEC();
+ }
+
+-int __INLINE__ timeval_cmp(struct timeval *t0, struct timeval *t1)
++int __INLINE__ timeval_cmp(struct fasttime_t *t0, struct fasttime_t *t1)
+ {
+- if (t0->tv_sec < t1->tv_sec)
+- {
++ /* Compare jiffies. Takes care of wrapping */
++ if (time_before(t0->tv_jiff, t1->tv_jiff))
+ return -1;
+- }
+- else if (t0->tv_sec > t1->tv_sec)
+- {
++ else if (time_after(t0->tv_jiff, t1->tv_jiff))
+ return 1;
+- }
++
++ /* Compare us */
+ if (t0->tv_usec < t1->tv_usec)
+- {
+ return -1;
+- }
+ else if (t0->tv_usec > t1->tv_usec)
+- {
+ return 1;
+- }
+ return 0;
+ }
+
+@@ -340,7 +237,7 @@
+ printk(KERN_WARNING
+ "timer name: %s data: 0x%08lX already in list!\n", name, data);
+ sanity_failed++;
+- return;
++ goto done;
+ }
+ else
+ {
+@@ -356,11 +253,11 @@
+ t->name = name;
+
+ t->tv_expires.tv_usec = t->tv_set.tv_usec + delay_us % 1000000;
+- t->tv_expires.tv_sec = t->tv_set.tv_sec + delay_us / 1000000;
++ t->tv_expires.tv_jiff = t->tv_set.tv_jiff + delay_us / 1000000 / HZ;
+ if (t->tv_expires.tv_usec > 1000000)
+ {
+ t->tv_expires.tv_usec -= 1000000;
+- t->tv_expires.tv_sec++;
++ t->tv_expires.tv_jiff += HZ;
+ }
+ #ifdef FAST_TIMER_LOG
+ timer_added_log[fast_timers_added % NUM_TIMER_STATS] = *t;
+@@ -401,6 +298,7 @@
+
+ D2(printk("start_one_shot_timer: %d us done\n", delay_us));
+
++done:
+ local_irq_restore(flags);
+ } /* start_one_shot_timer */
+
+@@ -444,11 +342,18 @@
+ /* Timer 1 interrupt handler */
+
+ static irqreturn_t
+-timer1_handler(int irq, void *dev_id, struct pt_regs *regs)
++timer1_handler(int irq, void *dev_id)
+ {
+ struct fast_timer *t;
+ unsigned long flags;
+
++ /* We keep interrupts disabled not only when we modify the
++ * fast timer list, but any time we hold a reference to a
++ * timer in the list, since del_fast_timer may be called
++ * from (another) interrupt context. Thus, the only time
++ * when interrupts are enabled is when calling the timer
++ * callback function.
++ */
+ local_irq_save(flags);
+
+ /* Clear timer1 irq */
+@@ -466,16 +371,16 @@
+ fast_timer_running = 0;
+ fast_timer_ints++;
+
+- local_irq_restore(flags);
+-
+ t = fast_timer_list;
+ while (t)
+ {
+- struct timeval tv;
++ struct fasttime_t tv;
++ fast_timer_function_type *f;
++ unsigned long d;
+
+ /* Has it really expired? */
+ do_gettimeofday_fast(&tv);
+- D1(printk("t: %is %06ius\n", tv.tv_sec, tv.tv_usec));
++ D1(printk("t: %is %06ius\n", tv.tv_jiff, tv.tv_usec));
+
+ if (timeval_cmp(&t->tv_expires, &tv) <= 0)
+ {
+@@ -486,7 +391,6 @@
+ fast_timers_expired++;
+
+ /* Remove this timer before call, since it may reuse the timer */
+- local_irq_save(flags);
+ if (t->prev)
+ {
+ t->prev->next = t->next;
+@@ -501,11 +405,21 @@
+ }
+ t->prev = NULL;
+ t->next = NULL;
+- local_irq_restore(flags);
+
+- if (t->function != NULL)
++ /* Save function callback data before enabling interrupts,
++ * since the timer may be removed and we don't know how it
++ * was allocated (e.g. ->function and ->data may become
++ * overwritten after deletion if the timer was stack-allocated).
++ */
++ f = t->function;
++ d = t->data;
++
++ if (f != NULL)
+ {
+- t->function(t->data);
++ /* Run the callback function with interrupts enabled. */
++ local_irq_restore(flags);
++ f(d);
++ local_irq_save(flags);
+ }
+ else
+ {
+@@ -518,16 +432,19 @@
+ D1(printk(".\n"));
+ }
+
+- local_irq_save(flags);
+ if ((t = fast_timer_list) != NULL)
+ {
+ /* Start next timer.. */
+- long us;
+- struct timeval tv;
++ long us = 0;
++ struct fasttime_t tv;
+
+ do_gettimeofday_fast(&tv);
+- us = ((t->tv_expires.tv_sec - tv.tv_sec) * 1000000 +
+- t->tv_expires.tv_usec - tv.tv_usec);
++
++ /* time_after_eq takes care of wrapping */
++ if (time_after_eq(t->tv_expires.tv_jiff, tv.tv_jiff))
++ us = ((t->tv_expires.tv_jiff - tv.tv_jiff) * 1000000 / HZ +
++ t->tv_expires.tv_usec - tv.tv_usec);
++
+ if (us > 0)
+ {
+ if (!fast_timer_running)
+@@ -537,7 +454,6 @@
+ #endif
+ start_timer1(us);
+ }
+- local_irq_restore(flags);
+ break;
+ }
+ else
+@@ -548,9 +464,10 @@
+ D1(printk("e! %d\n", us));
+ }
+ }
+- local_irq_restore(flags);
+ }
+
++ local_irq_restore(flags);
++
+ if (!t)
+ {
+ D1(printk("t1 stop!\n"));
+@@ -575,28 +492,17 @@
+ void schedule_usleep(unsigned long us)
+ {
+ struct fast_timer t;
+-#ifdef DECLARE_WAITQUEUE
+ wait_queue_head_t sleep_wait;
+ init_waitqueue_head(&sleep_wait);
+- {
+- DECLARE_WAITQUEUE(wait, current);
+-#else
+- struct wait_queue *sleep_wait = NULL;
+- struct wait_queue wait = { current, NULL };
+-#endif
+
+ D1(printk("schedule_usleep(%d)\n", us));
+- add_wait_queue(&sleep_wait, &wait);
+- set_current_state(TASK_INTERRUPTIBLE);
+ start_one_shot_timer(&t, wake_up_func, (unsigned long)&sleep_wait, us,
+ "usleep");
+- schedule();
+- set_current_state(TASK_RUNNING);
+- remove_wait_queue(&sleep_wait, &wait);
++ /* Uninterruptible sleep on the fast timer. (The condition is somewhat
++ redundant since the timer is what wakes us up.) */
++ wait_event(sleep_wait, !fast_timer_pending(&t));
++
+ D1(printk("done schedule_usleep(%d)\n", us));
+-#ifdef DECLARE_WAITQUEUE
+- }
+-#endif
+ }
+
+ #ifdef CONFIG_PROC_FS
+@@ -616,7 +522,7 @@
+ unsigned long flags;
+ int i = 0;
+ int num_to_show;
+- struct timeval tv;
++ struct fasttime_t tv;
+ struct fast_timer *t, *nextt;
+ static char *bigbuf = NULL;
+ static unsigned long used;
+@@ -624,7 +530,8 @@
+ if (!bigbuf && !(bigbuf = vmalloc(BIG_BUF_SIZE)))
+ {
+ used = 0;
+- bigbuf[0] = '\0';
++ if (buf)
++ buf[0] = '\0';
+ return 0;
+ }
+
+@@ -646,7 +553,7 @@
+ used += sprintf(bigbuf + used, "Fast timer running: %s\n",
+ fast_timer_running ? "yes" : "no");
+ used += sprintf(bigbuf + used, "Current time: %lu.%06lu\n",
+- (unsigned long)tv.tv_sec,
++ (unsigned long)tv.tv_jiff,
+ (unsigned long)tv.tv_usec);
+ #ifdef FAST_TIMER_SANITY_CHECKS
+ used += sprintf(bigbuf + used, "Sanity failed: %i\n",
+@@ -696,9 +603,9 @@
+ "d: %6li us data: 0x%08lX"
+ "\n",
+ t->name,
+- (unsigned long)t->tv_set.tv_sec,
++ (unsigned long)t->tv_set.tv_jiff,
+ (unsigned long)t->tv_set.tv_usec,
+- (unsigned long)t->tv_expires.tv_sec,
++ (unsigned long)t->tv_expires.tv_jiff,
+ (unsigned long)t->tv_expires.tv_usec,
+ t->delay_us,
+ t->data
+@@ -718,9 +625,9 @@
+ "d: %6li us data: 0x%08lX"
+ "\n",
+ t->name,
+- (unsigned long)t->tv_set.tv_sec,
++ (unsigned long)t->tv_set.tv_jiff,
+ (unsigned long)t->tv_set.tv_usec,
+- (unsigned long)t->tv_expires.tv_sec,
++ (unsigned long)t->tv_expires.tv_jiff,
+ (unsigned long)t->tv_expires.tv_usec,
+ t->delay_us,
+ t->data
+@@ -738,9 +645,9 @@
+ "d: %6li us data: 0x%08lX"
+ "\n",
+ t->name,
+- (unsigned long)t->tv_set.tv_sec,
++ (unsigned long)t->tv_set.tv_jiff,
+ (unsigned long)t->tv_set.tv_usec,
+- (unsigned long)t->tv_expires.tv_sec,
++ (unsigned long)t->tv_expires.tv_jiff,
+ (unsigned long)t->tv_expires.tv_usec,
+ t->delay_us,
+ t->data
+@@ -761,15 +668,15 @@
+ /* " func: 0x%08lX" */
+ "\n",
+ t->name,
+- (unsigned long)t->tv_set.tv_sec,
++ (unsigned long)t->tv_set.tv_jiff,
+ (unsigned long)t->tv_set.tv_usec,
+- (unsigned long)t->tv_expires.tv_sec,
++ (unsigned long)t->tv_expires.tv_jiff,
+ (unsigned long)t->tv_expires.tv_usec,
+ t->delay_us,
+ t->data
+ /* , t->function */
+ );
+- local_irq_disable();
++ local_irq_save(flags);
+ if (t->next != nextt)
+ {
+ printk(KERN_WARNING "timer removed!\n");
+@@ -798,7 +705,7 @@
+ static struct fast_timer tr[10];
+ static int exp_num[10];
+
+-static struct timeval tv_exp[100];
++static struct fasttime_t tv_exp[100];
+
+ static void test_timeout(unsigned long data)
+ {
+@@ -836,7 +743,7 @@
+ int prev_num;
+ int j;
+
+- struct timeval tv, tv0, tv1, tv2;
++ struct fasttime_t tv, tv0, tv1, tv2;
+
+ printk("fast_timer_test() start\n");
+ do_gettimeofday_fast(&tv);
+@@ -849,7 +756,7 @@
+ {
+ do_gettimeofday_fast(&tv_exp[j]);
+ }
+- printk("fast_timer_test() %is %06i\n", tv.tv_sec, tv.tv_usec);
++ printk("fast_timer_test() %is %06i\n", tv.tv_jiff, tv.tv_usec);
+
+ for (j = 0; j < 1000; j++)
+ {
+@@ -859,11 +766,11 @@
+ for (j = 0; j < 100; j++)
+ {
+ printk("%i.%i %i.%i %i.%i %i.%i %i.%i\n",
+- tv_exp[j].tv_sec,tv_exp[j].tv_usec,
+- tv_exp[j+1].tv_sec,tv_exp[j+1].tv_usec,
+- tv_exp[j+2].tv_sec,tv_exp[j+2].tv_usec,
+- tv_exp[j+3].tv_sec,tv_exp[j+3].tv_usec,
+- tv_exp[j+4].tv_sec,tv_exp[j+4].tv_usec);
++ tv_exp[j].tv_jiff,tv_exp[j].tv_usec,
++ tv_exp[j+1].tv_jiff,tv_exp[j+1].tv_usec,
++ tv_exp[j+2].tv_jiff,tv_exp[j+2].tv_usec,
++ tv_exp[j+3].tv_jiff,tv_exp[j+3].tv_usec,
++ tv_exp[j+4].tv_jiff,tv_exp[j+4].tv_usec);
+ j += 4;
+ }
+ do_gettimeofday_fast(&tv0);
+@@ -895,9 +802,9 @@
+ }
+ }
+ do_gettimeofday_fast(&tv2);
+- printk("Timers started %is %06i\n", tv0.tv_sec, tv0.tv_usec);
+- printk("Timers started at %is %06i\n", tv1.tv_sec, tv1.tv_usec);
+- printk("Timers done %is %06i\n", tv2.tv_sec, tv2.tv_usec);
++ printk("Timers started %is %06i\n", tv0.tv_jiff, tv0.tv_usec);
++ printk("Timers started at %is %06i\n", tv1.tv_jiff, tv1.tv_usec);
++ printk("Timers done %is %06i\n", tv2.tv_jiff, tv2.tv_usec);
+ DP(printk("buf0:\n");
+ printk(buf0);
+ printk("buf1:\n");
+@@ -919,9 +826,9 @@
+ printk("%-10s set: %6is %06ius exp: %6is %06ius "
+ "data: 0x%08X func: 0x%08X\n",
+ t->name,
+- t->tv_set.tv_sec,
++ t->tv_set.tv_jiff,
+ t->tv_set.tv_usec,
+- t->tv_expires.tv_sec,
++ t->tv_expires.tv_jiff,
+ t->tv_expires.tv_usec,
+ t->data,
+ t->function
+@@ -929,10 +836,10 @@
+
+ printk(" del: %6ius did exp: %6is %06ius as #%i error: %6li\n",
+ t->delay_us,
+- tv_exp[j].tv_sec,
++ tv_exp[j].tv_jiff,
+ tv_exp[j].tv_usec,
+ exp_num[j],
+- (tv_exp[j].tv_sec - t->tv_expires.tv_sec)*1000000 + tv_exp[j].tv_usec - t->tv_expires.tv_usec);
++ (tv_exp[j].tv_jiff - t->tv_expires.tv_jiff)*1000000 + tv_exp[j].tv_usec - t->tv_expires.tv_usec);
+ }
+ proc_fasttimer_read(buf5, NULL, 0, 0, 0);
+ printk("buf5 after all done:\n");
+@@ -942,7 +849,7 @@
+ #endif
+
+
+-void fast_timer_init(void)
++int fast_timer_init(void)
+ {
+ /* For some reason, request_irq() hangs when called froom time_init() */
+ if (!fast_timer_is_init)
+@@ -975,4 +882,6 @@
+ fast_timer_test();
+ #endif
+ }
++ return 0;
+ }
++__initcall(fast_timer_init);
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/kernel/head.S linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/head.S
+--- linux-2.6.19.2.old/arch/cris/arch-v10/kernel/head.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/head.S 2006-10-20 09:33:26.000000000 +0200
+@@ -1,4 +1,4 @@
+-/* $Id: head.S,v 1.10 2005/06/20 05:12:54 starvik Exp $
++/* $Id: head.S,v 1.13 2006/10/20 07:33:26 kjelld Exp $
+ *
+ * Head of the kernel - alter with care
+ *
+@@ -7,6 +7,19 @@
+ * Authors: Bjorn Wesen (bjornw@axis.com)
+ *
+ * $Log: head.S,v $
++ * Revision 1.13 2006/10/20 07:33:26 kjelld
++ * If serial port 2 is used, select it in R_GEN_CONFIG.
++ * If serial port 2 is used, setup the control registers for the port.
++ * This is done to avoid a puls on the TXD line during start up.
++ * This puls could disturbe some units (e.g. some Axis 214 with internal
++ * ver. 1.08).
++ *
++ * Revision 1.12 2006/10/13 12:43:11 starvik
++ * Merge of 2.6.18
++ *
++ * Revision 1.11 2005/08/29 07:32:17 starvik
++ * Merge of 2.6.13
++ *
+ * Revision 1.10 2005/06/20 05:12:54 starvik
+ * Remove unnecessary diff to kernel.org tree
+ *
+@@ -595,11 +608,17 @@
+
+ moveq 0,$r0
+
++ ;; Select or disable serial port 2
++#ifdef CONFIG_ETRAX_SERIAL_PORT2
++ or.d IO_STATE (R_GEN_CONFIG, ser2, select),$r0
++#else
++ or.d IO_STATE (R_GEN_CONFIG, ser2, disable),$r0
++#endif
++
+ ;; Init interfaces (disable them).
+ or.d IO_STATE (R_GEN_CONFIG, scsi0, disable) \
+ | IO_STATE (R_GEN_CONFIG, ata, disable) \
+ | IO_STATE (R_GEN_CONFIG, par0, disable) \
+- | IO_STATE (R_GEN_CONFIG, ser2, disable) \
+ | IO_STATE (R_GEN_CONFIG, mio, disable) \
+ | IO_STATE (R_GEN_CONFIG, scsi1, disable) \
+ | IO_STATE (R_GEN_CONFIG, scsi0w, disable) \
+@@ -801,6 +820,41 @@
+ | IO_STATE (R_SERIAL1_TR_CTRL, tr_bitnr, tr_8bit),$r0
+ move.b $r0,[R_SERIAL1_TR_CTRL]
+
++#ifdef CONFIG_ETRAX_SERIAL_PORT2
++ ;; setup the serial port 2 at 115200 baud for debug purposes
++
++ moveq IO_STATE (R_SERIAL2_XOFF, tx_stop, enable) \
++ | IO_STATE (R_SERIAL2_XOFF, auto_xoff, disable) \
++ | IO_FIELD (R_SERIAL2_XOFF, xoff_char, 0),$r0
++ move.d $r0,[R_SERIAL2_XOFF]
++
++ ; 115.2kbaud for both transmit and receive
++ move.b IO_STATE (R_SERIAL2_BAUD, tr_baud, c115k2Hz) \
++ | IO_STATE (R_SERIAL2_BAUD, rec_baud, c115k2Hz),$r0
++ move.b $r0,[R_SERIAL2_BAUD]
++
++ ; Set up and enable the serial2 receiver.
++ move.b IO_STATE (R_SERIAL2_REC_CTRL, dma_err, stop) \
++ | IO_STATE (R_SERIAL2_REC_CTRL, rec_enable, enable) \
++ | IO_STATE (R_SERIAL2_REC_CTRL, rts_, active) \
++ | IO_STATE (R_SERIAL2_REC_CTRL, sampling, middle) \
++ | IO_STATE (R_SERIAL2_REC_CTRL, rec_stick_par, normal) \
++ | IO_STATE (R_SERIAL2_REC_CTRL, rec_par, even) \
++ | IO_STATE (R_SERIAL2_REC_CTRL, rec_par_en, disable) \
++ | IO_STATE (R_SERIAL2_REC_CTRL, rec_bitnr, rec_8bit),$r0
++ move.b $r0,[R_SERIAL2_REC_CTRL]
++
++ ; Set up and enable the serial2 transmitter.
++ move.b IO_FIELD (R_SERIAL2_TR_CTRL, txd, 0) \
++ | IO_STATE (R_SERIAL2_TR_CTRL, tr_enable, enable) \
++ | IO_STATE (R_SERIAL2_TR_CTRL, auto_cts, disabled) \
++ | IO_STATE (R_SERIAL2_TR_CTRL, stop_bits, one_bit) \
++ | IO_STATE (R_SERIAL2_TR_CTRL, tr_stick_par, normal) \
++ | IO_STATE (R_SERIAL2_TR_CTRL, tr_par, even) \
++ | IO_STATE (R_SERIAL2_TR_CTRL, tr_par_en, disable) \
++ | IO_STATE (R_SERIAL2_TR_CTRL, tr_bitnr, tr_8bit),$r0
++ move.b $r0,[R_SERIAL2_TR_CTRL]
++#endif
+
+ #ifdef CONFIG_ETRAX_SERIAL_PORT3
+ ;; setup the serial port 3 at 115200 baud for debug purposes
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/kernel/io_interface_mux.c linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/io_interface_mux.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/kernel/io_interface_mux.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/io_interface_mux.c 2006-10-04 20:21:18.000000000 +0200
+@@ -1,10 +1,10 @@
+ /* IO interface mux allocator for ETRAX100LX.
+- * Copyright 2004, Axis Communications AB
+- * $Id: io_interface_mux.c,v 1.2 2004/12/21 12:08:38 starvik Exp $
++ * Copyright 2004-2006, Axis Communications AB
++ * $Id: io_interface_mux.c,v 1.4 2006/10/04 18:21:18 henriken Exp $
+ */
+
+
+-/* C.f. ETRAX100LX Designer's Reference 20.9 */
++/* C.f. ETRAX100LX Designer's Reference 19.9 */
+
+ #include <linux/kernel.h>
+ #include <linux/slab.h>
+@@ -35,7 +35,7 @@
+ struct watcher
+ {
+ void (*notify)(const unsigned int gpio_in_available,
+- const unsigned int gpio_out_available,
++ const unsigned int gpio_out_available,
+ const unsigned char pa_available,
+ const unsigned char pb_available);
+ struct watcher *next;
+@@ -45,17 +45,40 @@
+ struct if_group
+ {
+ enum io_if_group group;
+- unsigned char used;
+- enum cris_io_interface owner;
++ // name - the name of the group 'A' to 'F'
++ char *name;
++ // used - a bit mask of all pins in the group in the order listed
++ // in in the tables in 19.9.1 to 19.9.6. Note that no
++ // distinction is made between in, out and in/out pins.
++ unsigned int used;
+ };
+
+
+ struct interface
+ {
+ enum cris_io_interface ioif;
++ // name - the name of the interface
++ char *name;
++ // groups - OR'ed together io_if_group flags describing what pin groups
++ // the interface uses pins in.
+ unsigned char groups;
++ // used - set when the interface is allocated.
+ unsigned char used;
+ char *owner;
++ // group_a through group_f - bit masks describing what pins in the
++ // pin groups the interface uses.
++ unsigned int group_a;
++ unsigned int group_b;
++ unsigned int group_c;
++ unsigned int group_d;
++ unsigned int group_e;
++ unsigned int group_f;
++
++ // gpio_g_in, gpio_g_out, gpio_b - bit masks telling what pins in the
++ // GPIO ports the interface uses. This
++ // could be reconstucted using the group_X
++ // masks and a table of what pins the GPIO
++ // ports use, but that would be messy.
+ unsigned int gpio_g_in;
+ unsigned int gpio_g_out;
+ unsigned char gpio_b;
+@@ -64,26 +87,32 @@
+ static struct if_group if_groups[6] = {
+ {
+ .group = group_a,
++ .name = "A",
+ .used = 0,
+ },
+ {
+ .group = group_b,
++ .name = "B",
+ .used = 0,
+ },
+ {
+ .group = group_c,
++ .name = "C",
+ .used = 0,
+ },
+ {
+ .group = group_d,
++ .name = "D",
+ .used = 0,
+ },
+ {
+ .group = group_e,
++ .name = "E",
+ .used = 0,
+ },
+ {
+ .group = group_f,
++ .name = "F",
+ .used = 0,
+ }
+ };
+@@ -94,14 +123,32 @@
+ /* Begin Non-multiplexed interfaces */
+ {
+ .ioif = if_eth,
++ .name = "ethernet",
+ .groups = 0,
++
++ .group_a = 0,
++ .group_b = 0,
++ .group_c = 0,
++ .group_d = 0,
++ .group_e = 0,
++ .group_f = 0,
++
+ .gpio_g_in = 0,
+ .gpio_g_out = 0,
+ .gpio_b = 0
+ },
+ {
+ .ioif = if_serial_0,
++ .name = "serial_0",
+ .groups = 0,
++
++ .group_a = 0,
++ .group_b = 0,
++ .group_c = 0,
++ .group_d = 0,
++ .group_e = 0,
++ .group_f = 0,
++
+ .gpio_g_in = 0,
+ .gpio_g_out = 0,
+ .gpio_b = 0
+@@ -109,172 +156,385 @@
+ /* End Non-multiplexed interfaces */
+ {
+ .ioif = if_serial_1,
++ .name = "serial_1",
+ .groups = group_e,
++
++ .group_a = 0,
++ .group_b = 0,
++ .group_c = 0,
++ .group_d = 0,
++ .group_e = 0x0f,
++ .group_f = 0,
++
+ .gpio_g_in = 0x00000000,
+ .gpio_g_out = 0x00000000,
+ .gpio_b = 0x00
+ },
+ {
+ .ioif = if_serial_2,
++ .name = "serial_2",
+ .groups = group_b,
++
++ .group_a = 0,
++ .group_b = 0x0f,
++ .group_c = 0,
++ .group_d = 0,
++ .group_e = 0,
++ .group_f = 0,
++
+ .gpio_g_in = 0x000000c0,
+ .gpio_g_out = 0x000000c0,
+ .gpio_b = 0x00
+ },
+ {
+ .ioif = if_serial_3,
++ .name = "serial_3",
+ .groups = group_c,
++
++ .group_a = 0,
++ .group_b = 0,
++ .group_c = 0x0f,
++ .group_d = 0,
++ .group_e = 0,
++ .group_f = 0,
++
+ .gpio_g_in = 0xc0000000,
+ .gpio_g_out = 0xc0000000,
+ .gpio_b = 0x00
+ },
+ {
+ .ioif = if_sync_serial_1,
+- .groups = group_e | group_f, /* if_sync_serial_1 and if_sync_serial_3
+- can be used simultaneously */
++ .name = "sync_serial_1",
++ .groups = group_e | group_f,
++
++ .group_a = 0,
++ .group_b = 0,
++ .group_c = 0,
++ .group_d = 0,
++ .group_e = 0x0f,
++ .group_f = 0x10,
++
+ .gpio_g_in = 0x00000000,
+ .gpio_g_out = 0x00000000,
+ .gpio_b = 0x10
+ },
+ {
+ .ioif = if_sync_serial_3,
++ .name = "sync_serial_3",
+ .groups = group_c | group_f,
++
++ .group_a = 0,
++ .group_b = 0,
++ .group_c = 0x0f,
++ .group_d = 0,
++ .group_e = 0,
++ .group_f = 0x80,
++
+ .gpio_g_in = 0xc0000000,
+ .gpio_g_out = 0xc0000000,
+ .gpio_b = 0x80
+ },
+ {
+ .ioif = if_shared_ram,
++ .name = "shared_ram",
+ .groups = group_a,
++
++ .group_a = 0x7f8ff,
++ .group_b = 0,
++ .group_c = 0,
++ .group_d = 0,
++ .group_e = 0,
++ .group_f = 0,
++
+ .gpio_g_in = 0x0000ff3e,
+ .gpio_g_out = 0x0000ff38,
+ .gpio_b = 0x00
+ },
+ {
+ .ioif = if_shared_ram_w,
++ .name = "shared_ram_w",
+ .groups = group_a | group_d,
++
++ .group_a = 0x7f8ff,
++ .group_b = 0,
++ .group_c = 0,
++ .group_d = 0xff,
++ .group_e = 0,
++ .group_f = 0,
++
+ .gpio_g_in = 0x00ffff3e,
+ .gpio_g_out = 0x00ffff38,
+ .gpio_b = 0x00
+ },
+ {
+ .ioif = if_par_0,
++ .name = "par_0",
+ .groups = group_a,
++
++ .group_a = 0x7fbff,
++ .group_b = 0,
++ .group_c = 0,
++ .group_d = 0,
++ .group_e = 0,
++ .group_f = 0,
++
+ .gpio_g_in = 0x0000ff3e,
+ .gpio_g_out = 0x0000ff3e,
+ .gpio_b = 0x00
+ },
+ {
+ .ioif = if_par_1,
++ .name = "par_1",
+ .groups = group_d,
++
++ .group_a = 0,
++ .group_b = 0,
++ .group_c = 0,
++ .group_d = 0x7feff,
++ .group_e = 0,
++ .group_f = 0,
++
+ .gpio_g_in = 0x3eff0000,
+ .gpio_g_out = 0x3eff0000,
+ .gpio_b = 0x00
+ },
+ {
+ .ioif = if_par_w,
++ .name = "par_w",
+ .groups = group_a | group_d,
++
++ .group_a = 0x7fbff,
++ .group_b = 0,
++ .group_c = 0,
++ .group_d = 0xff,
++ .group_e = 0,
++ .group_f = 0,
++
+ .gpio_g_in = 0x00ffff3e,
+ .gpio_g_out = 0x00ffff3e,
+ .gpio_b = 0x00
+ },
+ {
+ .ioif = if_scsi8_0,
+- .groups = group_a | group_b | group_f, /* if_scsi8_0 and if_scsi8_1
+- can be used simultaneously */
++ .name = "scsi8_0",
++ .groups = group_a | group_b | group_f,
++
++ .group_a = 0x7ffff,
++ .group_b = 0x0f,
++ .group_c = 0,
++ .group_d = 0,
++ .group_e = 0,
++ .group_f = 0x10,
++
+ .gpio_g_in = 0x0000ffff,
+ .gpio_g_out = 0x0000ffff,
+ .gpio_b = 0x10
+ },
+ {
+ .ioif = if_scsi8_1,
+- .groups = group_c | group_d | group_f, /* if_scsi8_0 and if_scsi8_1
+- can be used simultaneously */
++ .name = "scsi8_1",
++ .groups = group_c | group_d | group_f,
++
++ .group_a = 0,
++ .group_b = 0,
++ .group_c = 0x0f,
++ .group_d = 0x7ffff,
++ .group_e = 0,
++ .group_f = 0x80,
++
+ .gpio_g_in = 0xffff0000,
+ .gpio_g_out = 0xffff0000,
+ .gpio_b = 0x80
+ },
+ {
+ .ioif = if_scsi_w,
++ .name = "scsi_w",
+ .groups = group_a | group_b | group_d | group_f,
++
++ .group_a = 0x7ffff,
++ .group_b = 0x0f,
++ .group_c = 0,
++ .group_d = 0x601ff,
++ .group_e = 0,
++ .group_f = 0x90,
++
+ .gpio_g_in = 0x01ffffff,
+ .gpio_g_out = 0x07ffffff,
+ .gpio_b = 0x80
+ },
+ {
+ .ioif = if_ata,
++ .name = "ata",
+ .groups = group_a | group_b | group_c | group_d,
++
++ .group_a = 0x7ffff,
++ .group_b = 0x0f,
++ .group_c = 0x0f,
++ .group_d = 0x7cfff,
++ .group_e = 0,
++ .group_f = 0,
++
+ .gpio_g_in = 0xf9ffffff,
+ .gpio_g_out = 0xffffffff,
+ .gpio_b = 0x80
+ },
+ {
+ .ioif = if_csp,
+- .groups = group_f, /* if_csp and if_i2c can be used simultaneously */
++ .name = "csp",
++ .groups = group_f,
++
++ .group_a = 0,
++ .group_b = 0,
++ .group_c = 0,
++ .group_d = 0,
++ .group_e = 0,
++ .group_f = 0xfc,
++
+ .gpio_g_in = 0x00000000,
+ .gpio_g_out = 0x00000000,
+ .gpio_b = 0xfc
+ },
+ {
+ .ioif = if_i2c,
+- .groups = group_f, /* if_csp and if_i2c can be used simultaneously */
++ .name = "i2c",
++ .groups = group_f,
++
++ .group_a = 0,
++ .group_b = 0,
++ .group_c = 0,
++ .group_d = 0,
++ .group_e = 0,
++ .group_f = 0x03,
++
+ .gpio_g_in = 0x00000000,
+ .gpio_g_out = 0x00000000,
+ .gpio_b = 0x03
+ },
+ {
+ .ioif = if_usb_1,
++ .name = "usb_1",
+ .groups = group_e | group_f,
++
++ .group_a = 0,
++ .group_b = 0,
++ .group_c = 0,
++ .group_d = 0,
++ .group_e = 0x0f,
++ .group_f = 0x2c,
++
+ .gpio_g_in = 0x00000000,
+ .gpio_g_out = 0x00000000,
+ .gpio_b = 0x2c
+ },
+ {
+ .ioif = if_usb_2,
++ .name = "usb_2",
+ .groups = group_d,
+- .gpio_g_in = 0x0e000000,
+- .gpio_g_out = 0x3c000000,
++
++ .group_a = 0,
++ .group_b = 0,
++ .group_c = 0,
++ .group_d = 0,
++ .group_e = 0x33e00,
++ .group_f = 0,
++
++ .gpio_g_in = 0x3e000000,
++ .gpio_g_out = 0x0c000000,
+ .gpio_b = 0x00
+ },
+ /* GPIO pins */
+ {
+ .ioif = if_gpio_grp_a,
++ .name = "gpio_a",
+ .groups = group_a,
++
++ .group_a = 0,
++ .group_b = 0,
++ .group_c = 0,
++ .group_d = 0,
++ .group_e = 0,
++ .group_f = 0,
++
+ .gpio_g_in = 0x0000ff3f,
+ .gpio_g_out = 0x0000ff3f,
+ .gpio_b = 0x00
+ },
+ {
+ .ioif = if_gpio_grp_b,
++ .name = "gpio_b",
+ .groups = group_b,
++
++ .group_a = 0,
++ .group_b = 0,
++ .group_c = 0,
++ .group_d = 0,
++ .group_e = 0,
++ .group_f = 0,
++
+ .gpio_g_in = 0x000000c0,
+ .gpio_g_out = 0x000000c0,
+ .gpio_b = 0x00
+ },
+ {
+ .ioif = if_gpio_grp_c,
++ .name = "gpio_c",
+ .groups = group_c,
++
++ .group_a = 0,
++ .group_b = 0,
++ .group_c = 0,
++ .group_d = 0,
++ .group_e = 0,
++ .group_f = 0,
++
+ .gpio_g_in = 0xc0000000,
+ .gpio_g_out = 0xc0000000,
+ .gpio_b = 0x00
+ },
+ {
+ .ioif = if_gpio_grp_d,
++ .name = "gpio_d",
+ .groups = group_d,
++
++ .group_a = 0,
++ .group_b = 0,
++ .group_c = 0,
++ .group_d = 0,
++ .group_e = 0,
++ .group_f = 0,
++
+ .gpio_g_in = 0x3fff0000,
+ .gpio_g_out = 0x3fff0000,
+ .gpio_b = 0x00
+ },
+ {
+ .ioif = if_gpio_grp_e,
++ .name = "gpio_e",
+ .groups = group_e,
++
++ .group_a = 0,
++ .group_b = 0,
++ .group_c = 0,
++ .group_d = 0,
++ .group_e = 0,
++ .group_f = 0,
++
+ .gpio_g_in = 0x00000000,
+ .gpio_g_out = 0x00000000,
+ .gpio_b = 0x00
+ },
+ {
+ .ioif = if_gpio_grp_f,
++ .name = "gpio_f",
+ .groups = group_f,
++
++ .group_a = 0,
++ .group_b = 0,
++ .group_c = 0,
++ .group_d = 0,
++ .group_e = 0,
++ .group_f = 0,
++
+ .gpio_g_in = 0x00000000,
+ .gpio_g_out = 0x00000000,
+ .gpio_b = 0xff
+@@ -284,11 +544,13 @@
+
+ static struct watcher *watchers = NULL;
+
++// The pins that are free to use in the GPIO ports.
+ static unsigned int gpio_in_pins = 0xffffffff;
+ static unsigned int gpio_out_pins = 0xffffffff;
+ static unsigned char gpio_pb_pins = 0xff;
+ static unsigned char gpio_pa_pins = 0xff;
+
++// Identifiers for the owners of the GPIO pins.
+ static enum cris_io_interface gpio_pa_owners[8];
+ static enum cris_io_interface gpio_pb_owners[8];
+ static enum cris_io_interface gpio_pg_owners[32];
+@@ -318,7 +580,7 @@
+ struct watcher *w = watchers;
+
+ DBG(printk("io_interface_mux: notifying watchers\n"));
+-
++
+ while (NULL != w) {
+ w->notify((const unsigned int)gpio_in_pins,
+ (const unsigned int)gpio_out_pins,
+@@ -354,37 +616,48 @@
+
+ if (interfaces[ioif].used) {
+ local_irq_restore(flags);
+- printk(KERN_CRIT "cris_io_interface: Cannot allocate interface for %s, in use by %s\n",
++ printk(KERN_CRIT "cris_io_interface: Cannot allocate interface %s for %s, in use by %s\n",
++ interfaces[ioif].name,
+ device_id,
+ interfaces[ioif].owner);
+ return -EBUSY;
+ }
+
+- /* Check that all required groups are free before allocating, */
++ /* Check that all required pins in the used groups are free
++ * before allocating. */
+ group_set = interfaces[ioif].groups;
+ while (NULL != (grp = get_group(group_set))) {
+- if (grp->used) {
+- if (grp->group == group_f) {
+- if ((if_sync_serial_1 == ioif) ||
+- (if_sync_serial_3 == ioif)) {
+- if ((grp->owner != if_sync_serial_1) &&
+- (grp->owner != if_sync_serial_3)) {
+- local_irq_restore(flags);
+- return -EBUSY;
+- }
+- } else if ((if_scsi8_0 == ioif) ||
+- (if_scsi8_1 == ioif)) {
+- if ((grp->owner != if_scsi8_0) &&
+- (grp->owner != if_scsi8_1)) {
+- local_irq_restore(flags);
+- return -EBUSY;
+- }
+- }
+- } else {
+- local_irq_restore(flags);
+- return -EBUSY;
+- }
++ unsigned int if_group_use = 0;
++
++ switch(grp->group) {
++ case group_a:
++ if_group_use = interfaces[ioif].group_a;
++ break;
++ case group_b:
++ if_group_use = interfaces[ioif].group_b;
++ break;
++ case group_c:
++ if_group_use = interfaces[ioif].group_c;
++ break;
++ case group_d:
++ if_group_use = interfaces[ioif].group_d;
++ break;
++ case group_e:
++ if_group_use = interfaces[ioif].group_e;
++ break;
++ case group_f:
++ if_group_use = interfaces[ioif].group_f;
++ break;
++ default:
++ BUG_ON(1);
+ }
++
++ if(if_group_use & grp->used) {
++ local_irq_restore(flags);
++ printk(KERN_INFO "cris_request_io_interface: group %s needed by %s not available\n", grp->name, interfaces[ioif].name);
++ return -EBUSY;
++ }
++
+ group_set = clear_group_from_set(group_set, grp);
+ }
+
+@@ -392,22 +665,16 @@
+ if (((interfaces[ioif].gpio_g_in & gpio_in_pins) != interfaces[ioif].gpio_g_in) ||
+ ((interfaces[ioif].gpio_g_out & gpio_out_pins) != interfaces[ioif].gpio_g_out) ||
+ ((interfaces[ioif].gpio_b & gpio_pb_pins) != interfaces[ioif].gpio_b)) {
+- printk(KERN_CRIT "cris_request_io_interface: Could not get required pins for interface %u\n",
+- ioif);
++ local_irq_restore(flags);
++ printk(KERN_CRIT "cris_request_io_interface: Could not get required pins for interface %s\n",
++ interfaces[ioif].name);
+ return -EBUSY;
+ }
+
+- /* All needed I/O pins and pin groups are free, allocate. */
+- group_set = interfaces[ioif].groups;
+- while (NULL != (grp = get_group(group_set))) {
+- grp->used = 1;
+- grp->owner = ioif;
+- group_set = clear_group_from_set(group_set, grp);
+- }
+-
++ /* Check which registers need to be reconfigured. */
+ gens = genconfig_shadow;
+ gens_ii = gen_config_ii_shadow;
+-
++
+ set_gen_config = 1;
+ switch (ioif)
+ {
+@@ -494,9 +761,43 @@
+ set_gen_config = 0;
+ break;
+ default:
+- panic("cris_request_io_interface: Bad interface %u submitted for %s\n",
+- ioif,
+- device_id);
++ local_irq_restore(flags);
++ printk(KERN_INFO "cris_request_io_interface: Bad interface %u submitted for %s\n",
++ ioif,
++ device_id);
++ return -EBUSY;
++ }
++
++ /* All needed I/O pins and pin groups are free, allocate. */
++ group_set = interfaces[ioif].groups;
++ while (NULL != (grp = get_group(group_set))) {
++ unsigned int if_group_use = 0;
++
++ switch(grp->group) {
++ case group_a:
++ if_group_use = interfaces[ioif].group_a;
++ break;
++ case group_b:
++ if_group_use = interfaces[ioif].group_b;
++ break;
++ case group_c:
++ if_group_use = interfaces[ioif].group_c;
++ break;
++ case group_d:
++ if_group_use = interfaces[ioif].group_d;
++ break;
++ case group_e:
++ if_group_use = interfaces[ioif].group_e;
++ break;
++ case group_f:
++ if_group_use = interfaces[ioif].group_f;
++ break;
++ default:
++ BUG_ON(1);
++ }
++ grp->used |= if_group_use;
++
++ group_set = clear_group_from_set(group_set, grp);
+ }
+
+ interfaces[ioif].used = 1;
+@@ -528,7 +829,7 @@
+
+ DBG(printk("GPIO pins: available after: g_in=0x%08x g_out=0x%08x pb=0x%02x\n",
+ gpio_in_pins, gpio_out_pins, gpio_pb_pins));
+-
++
+ local_irq_restore(flags);
+
+ notify_watchers();
+@@ -559,43 +860,36 @@
+ }
+ group_set = interfaces[ioif].groups;
+ while (NULL != (grp = get_group(group_set))) {
+- if (grp->group == group_f) {
+- switch (ioif)
+- {
+- case if_sync_serial_1:
+- if ((grp->owner == if_sync_serial_1) &&
+- interfaces[if_sync_serial_3].used) {
+- grp->owner = if_sync_serial_3;
+- } else
+- grp->used = 0;
+- break;
+- case if_sync_serial_3:
+- if ((grp->owner == if_sync_serial_3) &&
+- interfaces[if_sync_serial_1].used) {
+- grp->owner = if_sync_serial_1;
+- } else
+- grp->used = 0;
+- break;
+- case if_scsi8_0:
+- if ((grp->owner == if_scsi8_0) &&
+- interfaces[if_scsi8_1].used) {
+- grp->owner = if_scsi8_1;
+- } else
+- grp->used = 0;
+- break;
+- case if_scsi8_1:
+- if ((grp->owner == if_scsi8_1) &&
+- interfaces[if_scsi8_0].used) {
+- grp->owner = if_scsi8_0;
+- } else
+- grp->used = 0;
+- break;
+- default:
+- grp->used = 0;
+- }
+- } else {
+- grp->used = 0;
++ unsigned int if_group_use = 0;
++
++ switch(grp->group) {
++ case group_a:
++ if_group_use = interfaces[ioif].group_a;
++ break;
++ case group_b:
++ if_group_use = interfaces[ioif].group_b;
++ break;
++ case group_c:
++ if_group_use = interfaces[ioif].group_c;
++ break;
++ case group_d:
++ if_group_use = interfaces[ioif].group_d;
++ break;
++ case group_e:
++ if_group_use = interfaces[ioif].group_e;
++ break;
++ case group_f:
++ if_group_use = interfaces[ioif].group_f;
++ break;
++ default:
++ BUG_ON(1);
+ }
++
++ if ((grp->used & if_group_use) != if_group_use) {
++ BUG_ON(1);
++ }
++ grp->used = grp->used & ~if_group_use;
++
+ group_set = clear_group_from_set(group_set, grp);
+ }
+ interfaces[ioif].used = 0;
+@@ -784,7 +1078,7 @@
+
+ for (i = start_bit; i <= stop_bit; i++) {
+ owners[i] = if_unclaimed;
+- }
++ }
+ local_irq_restore(flags);
+ notify_watchers();
+
+@@ -821,7 +1115,7 @@
+ }
+
+ void cris_io_interface_delete_watcher(void (*notify)(const unsigned int gpio_in_available,
+- const unsigned int gpio_out_available,
++ const unsigned int gpio_out_available,
+ const unsigned char pa_available,
+ const unsigned char pb_available))
+ {
+@@ -870,7 +1164,7 @@
+
+ module_init(cris_io_interface_init);
+
+-
++
+ EXPORT_SYMBOL(cris_request_io_interface);
+ EXPORT_SYMBOL(cris_free_io_interface);
+ EXPORT_SYMBOL(cris_io_interface_allocate_pins);
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/kernel/irq.c linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/irq.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/kernel/irq.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/irq.c 2006-10-30 16:17:03.000000000 +0100
+@@ -1,4 +1,4 @@
+-/* $Id: irq.c,v 1.4 2005/01/04 12:22:28 starvik Exp $
++/* $Id: irq.c,v 1.9 2006/10/30 15:17:03 pkj Exp $
+ *
+ * linux/arch/cris/kernel/irq.c
+ *
+@@ -12,7 +12,9 @@
+ */
+
+ #include <asm/irq.h>
++#include <asm/current.h>
+ #include <linux/irq.h>
++#include <linux/interrupt.h>
+ #include <linux/kernel.h>
+ #include <linux/init.h>
+
+@@ -75,8 +77,8 @@
+ BUILD_IRQ(13, 0x2000)
+ void mmu_bus_fault(void); /* IRQ 14 is the bus fault interrupt */
+ void multiple_interrupt(void); /* IRQ 15 is the multiple IRQ interrupt */
+-BUILD_IRQ(16, 0x10000)
+-BUILD_IRQ(17, 0x20000)
++BUILD_IRQ(16, 0x10000 | 0x20000) /* ethernet tx interrupt needs to block rx */
++BUILD_IRQ(17, 0x20000 | 0x10000) /* ...and vice versa */
+ BUILD_IRQ(18, 0x40000)
+ BUILD_IRQ(19, 0x80000)
+ BUILD_IRQ(20, 0x100000)
+@@ -147,6 +149,55 @@
+ void do_sigtrap(void); /* from entry.S */
+ void gdb_handle_breakpoint(void); /* from entry.S */
+
++extern void do_IRQ(int irq, struct pt_regs * regs);
++
++/* Handle multiple IRQs */
++void do_multiple_IRQ(struct pt_regs* regs)
++{
++ int bit;
++ unsigned masked;
++ unsigned mask;
++ unsigned ethmask = 0;
++
++ /* Get interrupts to mask and handle */
++ mask = masked = *R_VECT_MASK_RD;
++
++ /* Never mask timer IRQ */
++ mask &= ~(IO_MASK(R_VECT_MASK_RD, timer0));
++
++ /*
++ * If either ethernet interrupt (rx or tx) is active then block
++ * the other one too. Unblock afterwards also.
++ */
++ if (mask &
++ (IO_STATE(R_VECT_MASK_RD, dma0, active) |
++ IO_STATE(R_VECT_MASK_RD, dma1, active))) {
++ ethmask = (IO_MASK(R_VECT_MASK_RD, dma0) |
++ IO_MASK(R_VECT_MASK_RD, dma1));
++ }
++
++ /* Block them */
++ *R_VECT_MASK_CLR = (mask | ethmask);
++
++ /* An extra irq_enter here to prevent softIRQs to run after
++ * each do_IRQ. This will decrease the interrupt latency.
++ */
++ irq_enter();
++
++ /* Handle all IRQs */
++ for (bit = 2; bit < 32; bit++) {
++ if (masked & (1 << bit)) {
++ do_IRQ(bit, regs);
++ }
++ }
++
++ /* This irq_exit() will trigger the soft IRQs. */
++ irq_exit();
++
++ /* Unblock the IRQs again */
++ *R_VECT_MASK_SET = (masked | ethmask);
++}
++
+ /* init_IRQ() is called by start_kernel and is responsible for fixing IRQ masks and
+ setting the irq vector table.
+ */
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/kernel/kgdb.c linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/kgdb.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/kernel/kgdb.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/kgdb.c 2006-03-22 10:56:55.000000000 +0100
+@@ -18,6 +18,10 @@
+ *! Jul 21 1999 Bjorn Wesen eLinux port
+ *!
+ *! $Log: kgdb.c,v $
++*! Revision 1.7 2006/03/22 09:56:55 starvik
++*! Merge of Linux 2.6.16
++*!
++*!
+ *! Revision 1.6 2005/01/14 10:12:17 starvik
+ *! KGDB on separate port.
+ *! Console fixes from 2.4.
+@@ -75,7 +79,7 @@
+ *!
+ *!---------------------------------------------------------------------------
+ *!
+-*! $Id: kgdb.c,v 1.6 2005/01/14 10:12:17 starvik Exp $
++*! $Id: kgdb.c,v 1.7 2006/03/22 09:56:55 starvik Exp $
+ *!
+ *! (C) Copyright 1999, Axis Communications AB, LUND, SWEDEN
+ *!
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/kernel/process.c linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/process.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/kernel/process.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/process.c 2006-10-13 14:43:11.000000000 +0200
+@@ -1,4 +1,4 @@
+-/* $Id: process.c,v 1.12 2004/12/27 11:18:32 starvik Exp $
++/* $Id: process.c,v 1.14 2006/10/13 12:43:11 starvik Exp $
+ *
+ * linux/arch/cris/kernel/process.c
+ *
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/kernel/ptrace.c linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/ptrace.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/kernel/ptrace.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/ptrace.c 2006-10-30 16:17:57.000000000 +0100
+@@ -66,6 +66,7 @@
+ ptrace_disable(struct task_struct *child)
+ {
+ /* Todo - pending singlesteps? */
++ clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+ }
+
+ /*
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/kernel/setup.c linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/setup.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/kernel/setup.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/setup.c 2006-10-13 14:43:11.000000000 +0200
+@@ -1,4 +1,4 @@
+-/*
++/*
+ *
+ * linux/arch/cris/arch-v10/kernel/setup.c
+ *
+@@ -13,6 +13,7 @@
+ #include <linux/seq_file.h>
+ #include <linux/proc_fs.h>
+ #include <linux/delay.h>
++#include <linux/param.h>
+
+ #ifdef CONFIG_PROC_FS
+ #define HAS_FPU 0x0001
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/kernel/signal.c linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/signal.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/kernel/signal.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/signal.c 2006-03-22 10:56:55.000000000 +0100
+@@ -41,7 +41,7 @@
+ */
+ #define RESTART_CRIS_SYS(regs) regs->r10 = regs->orig_r10; regs->irp -= 2;
+
+-int do_signal(int canrestart, sigset_t *oldset, struct pt_regs *regs);
++void do_signal(int canrestart, struct pt_regs *regs);
+
+ /*
+ * Atomically swap in the new signal mask, and wait for a signal. Define
+@@ -52,68 +52,16 @@
+ sys_sigsuspend(old_sigset_t mask, long r11, long r12, long r13, long mof,
+ long srp, struct pt_regs *regs)
+ {
+- sigset_t saveset;
+-
+ mask &= _BLOCKABLE;
+ spin_lock_irq(&current->sighand->siglock);
+- saveset = current->blocked;
+- siginitset(&current->blocked, mask);
+- recalc_sigpending();
+- spin_unlock_irq(&current->sighand->siglock);
+-
+- regs->r10 = -EINTR;
+- while (1) {
+- current->state = TASK_INTERRUPTIBLE;
+- schedule();
+- if (do_signal(0, &saveset, regs))
+- /* We will get here twice: once to call the signal
+- handler, then again to return from the
+- sigsuspend system call. When calling the
+- signal handler, R10 holds the signal number as
+- set through do_signal. The sigsuspend call
+- will return with the restored value set above;
+- always -EINTR. */
+- return regs->r10;
+- }
+-}
+-
+-/* Define dummy arguments to be able to reach the regs argument. (Note that
+- * this arrangement relies on size_t occupying one register.)
+- */
+-int
+-sys_rt_sigsuspend(sigset_t *unewset, size_t sigsetsize, long r12, long r13,
+- long mof, long srp, struct pt_regs *regs)
+-{
+- sigset_t saveset, newset;
+-
+- /* XXX: Don't preclude handling different sized sigset_t's. */
+- if (sigsetsize != sizeof(sigset_t))
+- return -EINVAL;
+-
+- if (copy_from_user(&newset, unewset, sizeof(newset)))
+- return -EFAULT;
+- sigdelsetmask(&newset, ~_BLOCKABLE);
+-
+- spin_lock_irq(&current->sighand->siglock);
+- saveset = current->blocked;
+- current->blocked = newset;
++ current->saved_sigmask = current->blocked;
++ siginitset(&current->blocked, mask);
+ recalc_sigpending();
+ spin_unlock_irq(&current->sighand->siglock);
+-
+- regs->r10 = -EINTR;
+- while (1) {
+- current->state = TASK_INTERRUPTIBLE;
+- schedule();
+- if (do_signal(0, &saveset, regs))
+- /* We will get here twice: once to call the signal
+- handler, then again to return from the
+- sigsuspend system call. When calling the
+- signal handler, R10 holds the signal number as
+- set through do_signal. The sigsuspend call
+- will return with the restored value set above;
+- always -EINTR. */
+- return regs->r10;
+- }
++ current->state = TASK_INTERRUPTIBLE;
++ schedule();
++ set_thread_flag(TIF_RESTORE_SIGMASK);
++ return -ERESTARTNOHAND;
+ }
+
+ int
+@@ -353,8 +301,8 @@
+ * user-mode trampoline.
+ */
+
+-static void setup_frame(int sig, struct k_sigaction *ka,
+- sigset_t *set, struct pt_regs * regs)
++static int setup_frame(int sig, struct k_sigaction *ka,
++ sigset_t *set, struct pt_regs * regs)
+ {
+ struct sigframe __user *frame;
+ unsigned long return_ip;
+@@ -402,14 +350,15 @@
+
+ wrusp((unsigned long)frame);
+
+- return;
++ return 0;
+
+ give_sigsegv:
+ force_sigsegv(sig, current);
++ return -EFAULT;
+ }
+
+-static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
+- sigset_t *set, struct pt_regs * regs)
++static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
++ sigset_t *set, struct pt_regs * regs)
+ {
+ struct rt_sigframe __user *frame;
+ unsigned long return_ip;
+@@ -466,21 +415,24 @@
+
+ wrusp((unsigned long)frame);
+
+- return;
++ return 0;
+
+ give_sigsegv:
+ force_sigsegv(sig, current);
++ return -EFAULT;
+ }
+
+ /*
+ * OK, we're invoking a handler
+ */
+
+-static inline void
++static inline int
+ handle_signal(int canrestart, unsigned long sig,
+ siginfo_t *info, struct k_sigaction *ka,
+ sigset_t *oldset, struct pt_regs * regs)
+ {
++ int ret;
++
+ /* Are we from a system call? */
+ if (canrestart) {
+ /* If so, check system call restarting.. */
+@@ -510,19 +462,20 @@
+
+ /* Set up the stack frame */
+ if (ka->sa.sa_flags & SA_SIGINFO)
+- setup_rt_frame(sig, ka, info, oldset, regs);
++ ret = setup_rt_frame(sig, ka, info, oldset, regs);
+ else
+- setup_frame(sig, ka, oldset, regs);
++ ret = setup_frame(sig, ka, oldset, regs);
+
+- if (ka->sa.sa_flags & SA_ONESHOT)
+- ka->sa.sa_handler = SIG_DFL;
++ if (ret == 0) {
++ spin_lock_irq(&current->sighand->siglock);
++ sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
++ if (!(ka->sa.sa_flags & SA_NODEFER))
++ sigaddset(&current->blocked,sig);
++ recalc_sigpending();
++ spin_unlock_irq(&current->sighand->siglock);
++ }
+
+- spin_lock_irq(&current->sighand->siglock);
+- sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
+- if (!(ka->sa.sa_flags & SA_NODEFER))
+- sigaddset(&current->blocked,sig);
+- recalc_sigpending();
+- spin_unlock_irq(&current->sighand->siglock);
++ return ret;
+ }
+
+ /*
+@@ -537,12 +490,13 @@
+ * mode below.
+ */
+
+-int do_signal(int canrestart, sigset_t *oldset, struct pt_regs *regs)
++void do_signal(int canrestart, struct pt_regs *regs)
+ {
+ siginfo_t info;
+ int signr;
+ struct k_sigaction ka;
+-
++ sigset_t *oldset;
++
+ /*
+ * We want the common case to go fast, which
+ * is why we may in certain cases get here from
+@@ -550,16 +504,26 @@
+ * if so.
+ */
+ if (!user_mode(regs))
+- return 1;
++ return;
+
+- if (!oldset)
++ if (test_thread_flag(TIF_RESTORE_SIGMASK))
++ oldset = &current->saved_sigmask;
++ else
+ oldset = &current->blocked;
+
+ signr = get_signal_to_deliver(&info, &ka, regs, NULL);
+ if (signr > 0) {
+ /* Whee! Actually deliver the signal. */
+- handle_signal(canrestart, signr, &info, &ka, oldset, regs);
+- return 1;
++ if (handle_signal(canrestart, signr, &info, &ka, oldset, regs)) {
++ /* a signal was successfully delivered; the saved
++ * sigmask will have been stored in the signal frame,
++ * and will be restored by sigreturn, so we can simply
++ * clear the TIF_RESTORE_SIGMASK flag */
++ if (test_thread_flag(TIF_RESTORE_SIGMASK))
++ clear_thread_flag(TIF_RESTORE_SIGMASK);
++ }
++
++ return;
+ }
+
+ /* Did we come from a system call? */
+@@ -575,5 +539,11 @@
+ regs->irp -= 2;
+ }
+ }
+- return 0;
++
++ /* if there's no signal to deliver, we just put the saved sigmask
++ * back */
++ if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
++ clear_thread_flag(TIF_RESTORE_SIGMASK);
++ sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
++ }
+ }
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/kernel/time.c linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/time.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/kernel/time.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/time.c 2007-01-09 10:29:18.000000000 +0100
+@@ -1,4 +1,4 @@
+-/* $Id: time.c,v 1.5 2004/09/29 06:12:46 starvik Exp $
++/* $Id: time.c,v 1.10 2007/01/09 09:29:18 starvik Exp $
+ *
+ * linux/arch/cris/arch-v10/kernel/time.c
+ *
+@@ -20,6 +20,7 @@
+ #include <asm/io.h>
+ #include <asm/delay.h>
+ #include <asm/rtc.h>
++#include <asm/irq_regs.h>
+
+ /* define this if you need to use print_timestamp */
+ /* it will make jiffies at 96 hz instead of 100 hz though */
+@@ -202,8 +203,9 @@
+ extern void cris_do_profile(struct pt_regs *regs);
+
+ static inline irqreturn_t
+-timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
++timer_interrupt(int irq, void *dev_id)
+ {
++ struct pt_regs* regs = get_irq_regs();
+ /* acknowledge the timer irq */
+
+ #ifdef USE_CASCADE_TIMERS
+@@ -222,9 +224,11 @@
+ #endif
+
+ /* reset watchdog otherwise it resets us! */
+-
+ reset_watchdog();
+
++ /* Update statistics. */
++ update_process_times(user_mode(regs));
++
+ /* call the real timer interrupt handler */
+
+ do_timer(1);
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/kernel/traps.c linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/traps.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/kernel/traps.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/kernel/traps.c 2006-12-11 14:04:24.000000000 +0100
+@@ -1,13 +1,10 @@
+-/* $Id: traps.c,v 1.4 2005/04/24 18:47:55 starvik Exp $
++/*
++ * Helper functions for trap handlers
+ *
+- * linux/arch/cris/arch-v10/traps.c
++ * Copyright (C) 2000-2006, Axis Communications AB.
+ *
+- * Heler functions for trap handlers
+- *
+- * Copyright (C) 2000-2002 Axis Communications AB
+- *
+- * Authors: Bjorn Wesen
+- * Hans-Peter Nilsson
++ * Authors: Bjorn Wesen
++ * Hans-Peter Nilsson
+ *
+ */
+
+@@ -15,124 +12,118 @@
+ #include <asm/uaccess.h>
+ #include <asm/arch/sv_addr_ag.h>
+
+-extern int raw_printk(const char *fmt, ...);
+-
+-void
+-show_registers(struct pt_regs * regs)
++void
++show_registers(struct pt_regs *regs)
+ {
+- /* We either use rdusp() - the USP register, which might not
+- correspond to the current process for all cases we're called,
+- or we use the current->thread.usp, which is not up to date for
+- the current process. Experience shows we want the USP
+- register. */
++ /*
++ * It's possible to use either the USP register or current->thread.usp.
++ * USP might not correspond to the current process for all cases this
++ * function is called, and current->thread.usp isn't up to date for the
++ * current process. Experience shows that using USP is the way to go.
++ */
+ unsigned long usp = rdusp();
+
+- raw_printk("IRP: %08lx SRP: %08lx DCCR: %08lx USP: %08lx MOF: %08lx\n",
+- regs->irp, regs->srp, regs->dccr, usp, regs->mof );
+- raw_printk(" r0: %08lx r1: %08lx r2: %08lx r3: %08lx\n",
++ printk("IRP: %08lx SRP: %08lx DCCR: %08lx USP: %08lx MOF: %08lx\n",
++ regs->irp, regs->srp, regs->dccr, usp, regs->mof);
++
++ printk(" r0: %08lx r1: %08lx r2: %08lx r3: %08lx\n",
+ regs->r0, regs->r1, regs->r2, regs->r3);
+- raw_printk(" r4: %08lx r5: %08lx r6: %08lx r7: %08lx\n",
++
++ printk(" r4: %08lx r5: %08lx r6: %08lx r7: %08lx\n",
+ regs->r4, regs->r5, regs->r6, regs->r7);
+- raw_printk(" r8: %08lx r9: %08lx r10: %08lx r11: %08lx\n",
++
++ printk(" r8: %08lx r9: %08lx r10: %08lx r11: %08lx\n",
+ regs->r8, regs->r9, regs->r10, regs->r11);
+- raw_printk("r12: %08lx r13: %08lx oR10: %08lx sp: %08lx\n",
+- regs->r12, regs->r13, regs->orig_r10, regs);
+- raw_printk("R_MMU_CAUSE: %08lx\n", (unsigned long)*R_MMU_CAUSE);
+- raw_printk("Process %s (pid: %d, stackpage=%08lx)\n",
++
++ printk("r12: %08lx r13: %08lx oR10: %08lx sp: %08lx\n",
++ regs->r12, regs->r13, regs->orig_r10, (long unsigned)regs);
++
++ printk("R_MMU_CAUSE: %08lx\n", (unsigned long)*R_MMU_CAUSE);
++
++ printk("Process %s (pid: %d, stackpage=%08lx)\n",
+ current->comm, current->pid, (unsigned long)current);
+
+ /*
+- * When in-kernel, we also print out the stack and code at the
+- * time of the fault..
+- */
+- if (! user_mode(regs)) {
+- int i;
++ * When in-kernel, we also print out the stack and code at the
++ * time of the fault..
++ */
++ if (!user_mode(regs)) {
++ int i;
+
+- show_stack(NULL, (unsigned long*)usp);
++ show_stack(NULL, (unsigned long *)usp);
+
+- /* Dump kernel stack if the previous dump wasn't one. */
++ /*
++ * If the previous stack-dump wasn't a kernel one, dump the
++ * kernel stack now.
++ */
+ if (usp != 0)
+- show_stack (NULL, NULL);
++ show_stack(NULL, NULL);
+
+- raw_printk("\nCode: ");
+- if(regs->irp < PAGE_OFFSET)
+- goto bad;
+-
+- /* Often enough the value at regs->irp does not point to
+- the interesting instruction, which is most often the
+- _previous_ instruction. So we dump at an offset large
+- enough that instruction decoding should be in sync at
+- the interesting point, but small enough to fit on a row
+- (sort of). We point out the regs->irp location in a
+- ksymoops-friendly way by wrapping the byte for that
+- address in parentheses. */
+- for(i = -12; i < 12; i++)
+- {
+- unsigned char c;
+- if(__get_user(c, &((unsigned char*)regs->irp)[i])) {
+-bad:
+- raw_printk(" Bad IP value.");
+- break;
+- }
++ printk("\nCode: ");
++
++ if (regs->irp < PAGE_OFFSET)
++ goto bad_value;
++
++ /*
++ * Quite often the value at regs->irp doesn't point to the
++ * interesting instruction, which often is the previous
++ * instruction. So dump at an offset large enough that the
++ * instruction decoding should be in sync at the interesting
++ * point, but small enough to fit on a row. The regs->irp
++ * location is pointed out in a ksymoops-friendly way by
++ * wrapping the byte for that address in parenthesises.
++ */
++ for (i = -12; i < 12; i++) {
++ unsigned char c;
++
++ if (__get_user(c, &((unsigned char *)regs->irp)[i])) {
++bad_value:
++ printk(" Bad IP value.");
++ break;
++ }
+
+ if (i == 0)
+- raw_printk("(%02x) ", c);
++ printk("(%02x) ", c);
+ else
+- raw_printk("%02x ", c);
+- }
+- raw_printk("\n");
+- }
++ printk("%02x ", c);
++ }
++ printk("\n");
++ }
+ }
+
+-/* Called from entry.S when the watchdog has bitten
+- * We print out something resembling an oops dump, and if
+- * we have the nice doggy development flag set, we halt here
+- * instead of rebooting.
+- */
+-
+-extern void reset_watchdog(void);
+-extern void stop_watchdog(void);
+-
+-
+ void
+-watchdog_bite_hook(struct pt_regs *regs)
++arch_enable_nmi(void)
+ {
+-#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
+- local_irq_disable();
+- stop_watchdog();
+- show_registers(regs);
+- while(1) /* nothing */;
+-#else
+- show_registers(regs);
+-#endif
++ asm volatile ("setf m");
+ }
+
+-/* This is normally the 'Oops' routine */
+-void
+-die_if_kernel(const char * str, struct pt_regs * regs, long err)
++extern void (*nmi_handler)(struct pt_regs*);
++void handle_nmi(struct pt_regs* regs)
+ {
+- if(user_mode(regs))
+- return;
+-
+-#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
+- /* This printout might take too long and trigger the
+- * watchdog normally. If we're in the nice doggy
+- * development mode, stop the watchdog during printout.
+- */
+- stop_watchdog();
+-#endif
+-
+- raw_printk("%s: %04lx\n", str, err & 0xffff);
+-
+- show_registers(regs);
++ if (nmi_handler)
++ nmi_handler(regs);
+
+-#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
+- reset_watchdog();
+-#endif
+- do_exit(SIGSEGV);
++ /* Wait until nmi is no longer active. (We enable NMI immediately after
++ returning from this function, and we don't want it happening while
++ exiting from the NMI interrupt handler.) */
++ while(*R_IRQ_MASK0_RD & IO_STATE(R_IRQ_MASK0_RD, nmi_pin, active));
+ }
+
+-void arch_enable_nmi(void)
++#ifdef CONFIG_DEBUG_BUGVERBOSE
++void
++handle_BUG(struct pt_regs *regs)
+ {
+- asm volatile("setf m");
++ struct bug_frame f;
++ unsigned char c;
++ unsigned long irp = regs->irp;
++
++ if (__copy_from_user(&f, (const void __user *)(irp - 8), sizeof f))
++ return;
++ if (f.prefix != BUG_PREFIX || f.magic != BUG_MAGIC)
++ return;
++ if (__get_user(c, f.filename))
++ f.filename = "<bad filename>";
++
++ printk("kernel BUG at %s:%d!\n", f.filename, f.line);
+ }
++#endif
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/lib/checksum.S linux-2.6.19.2.dev/arch/cris/arch-v10/lib/checksum.S
+--- linux-2.6.19.2.old/arch/cris/arch-v10/lib/checksum.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/lib/checksum.S 2005-08-16 12:38:52.000000000 +0200
+@@ -1,4 +1,4 @@
+-/* $Id: checksum.S,v 1.1 2001/12/17 13:59:27 bjornw Exp $
++/* $Id: checksum.S,v 1.2 2005/08/16 10:38:52 edgar Exp $
+ * A fast checksum routine using movem
+ * Copyright (c) 1998-2001 Axis Communications AB
+ *
+@@ -61,8 +61,6 @@
+
+ ax
+ addq 0,$r12
+- ax ; do it again, since we might have generated a carry
+- addq 0,$r12
+
+ subq 10*4,$r11
+ bge _mloop
+@@ -88,10 +86,6 @@
+ lsrq 16,$r13 ; r13 = checksum >> 16
+ and.d $r9,$r12 ; checksum = checksum & 0xffff
+ add.d $r13,$r12 ; checksum += r13
+- move.d $r12,$r13 ; do the same again, maybe we got a carry last add
+- lsrq 16,$r13
+- and.d $r9,$r12
+- add.d $r13,$r12
+
+ _no_fold:
+ cmpq 2,$r11
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/lib/checksumcopy.S linux-2.6.19.2.dev/arch/cris/arch-v10/lib/checksumcopy.S
+--- linux-2.6.19.2.old/arch/cris/arch-v10/lib/checksumcopy.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/lib/checksumcopy.S 2005-08-16 12:38:52.000000000 +0200
+@@ -1,4 +1,4 @@
+-/* $Id: checksumcopy.S,v 1.1 2001/12/17 13:59:27 bjornw Exp $
++/* $Id: checksumcopy.S,v 1.2 2005/08/16 10:38:52 edgar Exp $
+ * A fast checksum+copy routine using movem
+ * Copyright (c) 1998, 2001 Axis Communications AB
+ *
+@@ -67,8 +67,6 @@
+
+ ax
+ addq 0,$r13
+- ax ; do it again, since we might have generated a carry
+- addq 0,$r13
+
+ subq 10*4,$r12
+ bge _mloop
+@@ -91,10 +89,6 @@
+ lsrq 16,$r9 ; r0 = checksum >> 16
+ and.d 0xffff,$r13 ; checksum = checksum & 0xffff
+ add.d $r9,$r13 ; checksum += r0
+- move.d $r13,$r9 ; do the same again, maybe we got a carry last add
+- lsrq 16,$r9
+- and.d 0xffff,$r13
+- add.d $r9,$r13
+
+ _no_fold:
+ cmpq 2,$r12
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/lib/dram_init.S linux-2.6.19.2.dev/arch/cris/arch-v10/lib/dram_init.S
+--- linux-2.6.19.2.old/arch/cris/arch-v10/lib/dram_init.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/lib/dram_init.S 2006-10-13 14:43:11.000000000 +0200
+@@ -1,4 +1,4 @@
+-/* $Id: dram_init.S,v 1.4 2003/09/22 09:21:59 starvik Exp $
++/* $Id: dram_init.S,v 1.5 2006/10/13 12:43:11 starvik Exp $
+ *
+ * DRAM/SDRAM initialization - alter with care
+ * This file is intended to be included from other assembler files
+@@ -11,6 +11,9 @@
+ * Authors: Mikael Starvik (starvik@axis.com)
+ *
+ * $Log: dram_init.S,v $
++ * Revision 1.5 2006/10/13 12:43:11 starvik
++ * Merge of 2.6.18
++ *
+ * Revision 1.4 2003/09/22 09:21:59 starvik
+ * Decompresser is linked to 0x407xxxxx and sdram commands are at 0x000xxxxx
+ * so we need to mask off 12 bits.
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/mm/fault.c linux-2.6.19.2.dev/arch/cris/arch-v10/mm/fault.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/mm/fault.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/mm/fault.c 2006-12-11 12:32:10.000000000 +0100
+@@ -73,7 +73,7 @@
+ /* leave it to the MM system fault handler */
+ if (miss)
+ do_page_fault(address, regs, 0, writeac);
+- else
++ else
+ do_page_fault(address, regs, 1, we);
+
+ /* Reload TLB with new entry to avoid an extra miss exception.
+@@ -84,12 +84,13 @@
+ local_irq_disable();
+ pmd = (pmd_t *)(pgd + pgd_index(address));
+ if (pmd_none(*pmd))
+- return;
++ goto exit;
+ pte = *pte_offset_kernel(pmd, address);
+ if (!pte_present(pte))
+- return;
++ goto exit;
+ *R_TLB_SELECT = select;
+ *R_TLB_HI = cause;
+ *R_TLB_LO = pte_val(pte);
++exit:
+ local_irq_restore(flags);
+ }
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v10/mm/tlb.c linux-2.6.19.2.dev/arch/cris/arch-v10/mm/tlb.c
+--- linux-2.6.19.2.old/arch/cris/arch-v10/mm/tlb.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v10/mm/tlb.c 2006-08-07 12:08:35.000000000 +0200
+@@ -179,23 +179,26 @@
+ switch_mm(struct mm_struct *prev, struct mm_struct *next,
+ struct task_struct *tsk)
+ {
+- /* make sure we have a context */
++ if (prev != next) {
++ /* make sure we have a context */
++ get_mmu_context(next);
++
++ /* remember the pgd for the fault handlers
++ * this is similar to the pgd register in some other CPU's.
++ * we need our own copy of it because current and active_mm
++ * might be invalid at points where we still need to derefer
++ * the pgd.
++ */
+
+- get_mmu_context(next);
++ per_cpu(current_pgd, smp_processor_id()) = next->pgd;
+
+- /* remember the pgd for the fault handlers
+- * this is similar to the pgd register in some other CPU's.
+- * we need our own copy of it because current and active_mm
+- * might be invalid at points where we still need to derefer
+- * the pgd.
+- */
+-
+- per_cpu(current_pgd, smp_processor_id()) = next->pgd;
+-
+- /* switch context in the MMU */
++ /* switch context in the MMU */
+
+- D(printk("switching mmu_context to %d (%p)\n", next->context, next));
++ D(printk("switching mmu_context to %d (%p)\n",
++ next->context, next));
+
+- *R_MMU_CONTEXT = IO_FIELD(R_MMU_CONTEXT, page_id, next->context.page_id);
++ *R_MMU_CONTEXT = IO_FIELD(R_MMU_CONTEXT,
++ page_id, next->context.page_id);
++ }
+ }
+
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/Kconfig linux-2.6.19.2.dev/arch/cris/arch-v32/Kconfig
+--- linux-2.6.19.2.old/arch/cris/arch-v32/Kconfig 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/Kconfig 2007-01-09 10:29:18.000000000 +0100
+@@ -1,23 +1,66 @@
++source drivers/cpufreq/Kconfig
++
+ config ETRAX_DRAM_VIRTUAL_BASE
+ hex
+ depends on ETRAX_ARCH_V32
+ default "c0000000"
+
+-config ETRAX_LED1G
+- string "First green LED bit"
++choice
++ prompt "Nbr of Ethernet LED groups"
+ depends on ETRAX_ARCH_V32
++ default ETRAX_NBR_LED_GRP_ONE
++ help
++ Select how many Ethernet LED groups that can be used. Usually one per Ethernet
++ interface is a good choice.
++
++config ETRAX_NBR_LED_GRP_ZERO
++ bool "Use zero LED groups"
++ help
++ Select this if you do not want any Ethernet LEDs.
++
++config ETRAX_NBR_LED_GRP_ONE
++ bool "Use one LED group"
++ help
++ Select this if you want one Ethernet LED group. This LED group can be used for
++ one or more Ethernet interfaces. However, it is recomended that each Ethernet
++ interface use a dedicated LED group.
++
++config ETRAX_NBR_LED_GRP_TWO
++ bool "Use two LED groups"
++ help
++ Select this if you want two Ethernet LED groups. This is the best choice if you
++ have more than one Ethernet interface and would like to have separate LEDs for
++ the interfaces.
++
++endchoice
++
++config ETRAX_LED_G_NET0
++ string "Ethernet LED group 0 green LED bit"
++ depends on ETRAX_ARCH_V32 && (ETRAX_NBR_LED_GRP_ONE || ETRAX_NBR_LED_GRP_TWO)
+ default "PA3"
+ help
+- Bit to use for the first green LED (network LED).
+- Most Axis products use bit A3 here.
++ Bit to use for the green LED in Ethernet LED group 0.
+
+-config ETRAX_LED1R
+- string "First red LED bit"
+- depends on ETRAX_ARCH_V32
++config ETRAX_LED_R_NET0
++ string "Ethernet LED group 0 red LED bit"
++ depends on ETRAX_ARCH_V32 && (ETRAX_NBR_LED_GRP_ONE || ETRAX_NBR_LED_GRP_TWO)
+ default "PA4"
+ help
+- Bit to use for the first red LED (network LED).
+- Most Axis products use bit A4 here.
++ Bit to use for the red LED in Ethernet LED group 0.
++
++config ETRAX_LED_G_NET1
++ string "Ethernet group 1 green LED bit"
++ depends on ETRAX_ARCH_V32 && ETRAX_NBR_LED_GRP_TWO
++ default ""
++ help
++ Bit to use for the green LED in Ethernet LED group 1.
++
++config ETRAX_LED_R_NET1
++ string "Ethernet group 1 red LED bit"
++ depends on ETRAX_ARCH_V32 && ETRAX_NBR_LED_GRP_TWO
++ default ""
++ help
++ Bit to use for the red LED in Ethernet LED group 1.
+
+ config ETRAX_LED2G
+ string "Second green LED bit"
+@@ -294,3 +337,22 @@
+ help
+ Configures the initial data for the general port E bits. Most
+ products should use 00000 here.
++
++config ETRAX_DEF_GIO_PV_OE
++ hex "GIO_PV_OE"
++ depends on ETRAX_VIRTUAL_GPIO
++ default "0000"
++ help
++ Configures the direction of virtual general port V bits. 1 is out,
++ 0 is in. This is often totally different depending on the product
++ used. These bits are used for all kinds of stuff. If you don't know
++ what to use, it is always safe to put all as inputs, although
++ floating inputs isn't good.
++
++config ETRAX_DEF_GIO_PV_OUT
++ hex "GIO_PV_OUT"
++ depends on ETRAX_VIRTUAL_GPIO
++ default "0000"
++ help
++ Configures the initial data for the virtual general port V bits.
++ Most products should use 0000 here.
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/Makefile linux-2.6.19.2.dev/arch/cris/arch-v32/boot/Makefile
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/Makefile 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/Makefile 2006-11-29 17:05:41.000000000 +0100
+@@ -1,14 +1,21 @@
+ #
+ # arch/cris/arch-v32/boot/Makefile
+ #
+-target = $(target_boot_dir)
+-src = $(src_boot_dir)
+
+-zImage: compressed/vmlinuz
++OBJCOPY = objcopy-cris
++OBJCOPYFLAGS = -O binary -R .note -R .comment
+
+-compressed/vmlinuz: $(objtree)/vmlinux
+- @$(MAKE) -f $(src)/compressed/Makefile $(objtree)/vmlinuz
++subdir- := compressed rescue
++targets := Image
+
+-clean:
+- rm -f zImage tools/build compressed/vmlinux.out
+- @$(MAKE) -f $(src)/compressed/Makefile clean
++$(obj)/Image: vmlinux FORCE
++ $(call if_changed,objcopy)
++ @echo ' Kernel: $@ is ready'
++
++$(obj)/compressed/vmlinux: $(obj)/Image FORCE
++ $(Q)$(MAKE) $(build)=$(obj)/compressed $@
++ $(Q)$(MAKE) $(build)=$(obj)/rescue $(obj)/rescue/rescue.bin
++
++$(obj)/zImage: $(obj)/compressed/vmlinux
++ @cp $< $@
++ @echo ' Kernel: $@ is ready'
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/compressed/Makefile linux-2.6.19.2.dev/arch/cris/arch-v32/boot/compressed/Makefile
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/compressed/Makefile 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/compressed/Makefile 2006-11-29 17:05:42.000000000 +0100
+@@ -1,41 +1,29 @@
+ #
+-# lx25/arch/cris/arch-v32/boot/compressed/Makefile
++# arch/cris/arch-v32/boot/compressed/Makefile
+ #
+-# create a compressed vmlinux image from the original vmlinux files and romfs
+-#
+-
+-target = $(target_compressed_dir)
+-src = $(src_compressed_dir)
+
+ CC = gcc-cris -mlinux -march=v32 -I $(TOPDIR)/include
+ CFLAGS = -O2
+ LD = gcc-cris -mlinux -march=v32 -nostdlib
++LDFLAGS = -T $(obj)/decompress.ld
++obj-y = head.o misc.o
++OBJECTS = $(obj)/head.o $(obj)/misc.o
+ OBJCOPY = objcopy-cris
+ OBJCOPYFLAGS = -O binary --remove-section=.bss
+-OBJECTS = $(target)/head.o $(target)/misc.o
+-
+-# files to compress
+-SYSTEM = $(objtree)/vmlinux.bin
+-
+-all: vmlinuz
+-
+-$(target)/decompress.bin: $(OBJECTS)
+- $(LD) -T $(src)/decompress.ld -o $(target)/decompress.o $(OBJECTS)
+- $(OBJCOPY) $(OBJCOPYFLAGS) $(target)/decompress.o $(target)/decompress.bin
+
+-$(objtree)/vmlinuz: $(target) piggy.img $(target)/decompress.bin
+- cat $(target)/decompress.bin piggy.img > $(objtree)/vmlinuz
+- rm -f piggy.img
+- cp $(objtree)/vmlinuz $(src)
++quiet_cmd_image = BUILD $@
++cmd_image = cat $(obj)/decompress.bin $(obj)/piggy.gz > $@
+
+-$(target)/head.o: $(src)/head.S
+- $(CC) -D__ASSEMBLY__ -c $< -o $@
++targets := vmlinux piggy.gz decompress.o decompress.bin
+
+-# gzip the kernel image
++$(obj)/decompress.o: $(OBJECTS) FORCE
++ $(call if_changed,ld)
+
+-piggy.img: $(SYSTEM)
+- cat $(SYSTEM) | gzip -f -9 > piggy.img
++$(obj)/decompress.bin: $(obj)/decompress.o FORCE
++ $(call if_changed,objcopy)
+
+-clean:
+- rm -f piggy.img $(objtree)/vmlinuz vmlinuz.o decompress.o decompress.bin $(OBJECTS)
++$(obj)/vmlinux: $(obj)/piggy.gz $(obj)/decompress.bin FORCE
++ $(call if_changed,image)
+
++$(obj)/piggy.gz: $(obj)/../Image FORCE
++ $(call if_changed,gzip)
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/compressed/README linux-2.6.19.2.dev/arch/cris/arch-v32/boot/compressed/README
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/compressed/README 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/compressed/README 2003-08-21 11:37:03.000000000 +0200
+@@ -5,14 +5,14 @@
+ This can be slightly confusing because it's a process with many steps.
+
+ The kernel object built by the arch/etrax100/Makefile, vmlinux, is split
+-by that makefile into text and data binary files, vmlinux.text and
++by that makefile into text and data binary files, vmlinux.text and
+ vmlinux.data.
+
+ Those files together with a ROM filesystem can be catted together and
+ burned into a flash or executed directly at the DRAM origin.
+
+ They can also be catted together and compressed with gzip, which is what
+-happens in this makefile. Together they make up piggy.img.
++happens in this makefile. Together they make up piggy.img.
+
+ The decompressor is built into the file decompress.o. It is turned into
+ the binary file decompress.bin, which is catted together with piggy.img
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/compressed/decompress.ld linux-2.6.19.2.dev/arch/cris/arch-v32/boot/compressed/decompress.ld
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/compressed/decompress.ld 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/compressed/decompress.ld 2003-08-21 11:57:56.000000000 +0200
+@@ -1,7 +1,7 @@
+ /*#OUTPUT_FORMAT(elf32-us-cris) */
+ OUTPUT_ARCH (crisv32)
+
+-MEMORY
++MEMORY
+ {
+ dram : ORIGIN = 0x40700000,
+ LENGTH = 0x00100000
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/compressed/head.S linux-2.6.19.2.dev/arch/cris/arch-v32/boot/compressed/head.S
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/compressed/head.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/compressed/head.S 2007-01-09 10:29:20.000000000 +0100
+@@ -2,19 +2,19 @@
+ * Code that sets up the DRAM registers, calls the
+ * decompressor to unpack the piggybacked kernel, and jumps.
+ *
+- * Copyright (C) 1999 - 2003, Axis Communications AB
++ * Copyright (C) 1999 - 2006, Axis Communications AB
+ */
+
+ #define ASSEMBLER_MACROS_ONLY
+ #include <asm/arch/hwregs/asm/reg_map_asm.h>
+ #include <asm/arch/hwregs/asm/gio_defs_asm.h>
+ #include <asm/arch/hwregs/asm/config_defs_asm.h>
+-
++
+ #define RAM_INIT_MAGIC 0x56902387
+ #define COMMAND_LINE_MAGIC 0x87109563
+
+ ;; Exported symbols
+-
++
+ .globl input_data
+
+ .text
+@@ -29,53 +29,16 @@
+ REG_STATE(config, rw_clk_ctrl, fix_io, yes), $r0
+ move.d $r0, [$r1]
+
+- ;; If booting from NAND flash we first have to copy some
+- ;; data from NAND flash to internal RAM to get the code
+- ;; that initializes the SDRAM. Lets copy 20 KB. This
+- ;; code executes at 0x38010000 if booting from NAND and
+- ;; we are guaranted that at least 0x200 bytes are good so
+- ;; lets start from there. The first 8192 bytes in the nand
+- ;; flash is spliced with zeroes and is thus 16384 bytes.
+- move.d 0x38010200, $r10
+- move.d 0x14200, $r11 ; Start offset in NAND flash 0x10200 + 16384
+- move.d 0x5000, $r12 ; Length of copy
+-
+- ;; Before this code the tools add a partitiontable so the PC
+- ;; has an offset from the linked address.
+-offset1:
+- lapcq ., $r13 ; get PC
+- add.d first_copy_complete-offset1, $r13
+-
+-#include "../../lib/nand_init.S"
+-
+-first_copy_complete:
+- ;; Initialze the DRAM registers.
++ ;; Initialize the DRAM registers.
+ cmp.d RAM_INIT_MAGIC, $r8 ; Already initialized?
+ beq dram_init_finished
+ nop
+
+ #include "../../lib/dram_init.S"
+-
++
+ dram_init_finished:
+- lapcq ., $r13 ; get PC
+- add.d second_copy_complete-dram_init_finished, $r13
+-
+- move.d REG_ADDR(config, regi_config, r_bootsel), $r0
+- move.d [$r0], $r0
+- and.d REG_MASK(config, r_bootsel, boot_mode), $r0
+- cmp.d REG_STATE(config, r_bootsel, boot_mode, nand), $r0
+- bne second_copy_complete ; No NAND boot
+- nop
+-
+- ;; Copy 2MB from NAND flash to SDRAM (at 2-4MB into the SDRAM)
+- move.d 0x40204000, $r10
+- move.d 0x8000, $r11
+- move.d 0x200000, $r12
+- ba copy_nand_to_ram
+- nop
+-second_copy_complete:
+-
+- ;; Initiate the PA port.
++
++ ;; Initiate the GIO ports.
+ move.d CONFIG_ETRAX_DEF_GIO_PA_OUT, $r0
+ move.d REG_ADDR(gio, regi_gio, rw_pa_dout), $r1
+ move.d $r0, [$r1]
+@@ -84,57 +47,74 @@
+ move.d REG_ADDR(gio, regi_gio, rw_pa_oe), $r1
+ move.d $r0, [$r1]
+
++ move.d CONFIG_ETRAX_DEF_GIO_PB_OUT, $r0
++ move.d REG_ADDR(gio, regi_gio, rw_pb_dout), $r1
++ move.d $r0, [$r1]
++
++ move.d CONFIG_ETRAX_DEF_GIO_PB_OE, $r0
++ move.d REG_ADDR(gio, regi_gio, rw_pb_oe), $r1
++ move.d $r0, [$r1]
++
++ move.d CONFIG_ETRAX_DEF_GIO_PC_OUT, $r0
++ move.d REG_ADDR(gio, regi_gio, rw_pc_dout), $r1
++ move.d $r0, [$r1]
++
++ move.d CONFIG_ETRAX_DEF_GIO_PC_OE, $r0
++ move.d REG_ADDR(gio, regi_gio, rw_pc_oe), $r1
++ move.d $r0, [$r1]
++
++ move.d CONFIG_ETRAX_DEF_GIO_PD_OUT, $r0
++ move.d REG_ADDR(gio, regi_gio, rw_pd_dout), $r1
++ move.d $r0, [$r1]
++
++ move.d CONFIG_ETRAX_DEF_GIO_PD_OE, $r0
++ move.d REG_ADDR(gio, regi_gio, rw_pd_oe), $r1
++ move.d $r0, [$r1]
++
++ move.d CONFIG_ETRAX_DEF_GIO_PE_OUT, $r0
++ move.d REG_ADDR(gio, regi_gio, rw_pe_dout), $r1
++ move.d $r0, [$r1]
++
++ move.d CONFIG_ETRAX_DEF_GIO_PE_OE, $r0
++ move.d REG_ADDR(gio, regi_gio, rw_pe_oe), $r1
++ move.d $r0, [$r1]
++
+ ;; Setup the stack to a suitably high address.
+- ;; We assume 8 MB is the minimum DRAM and put
++ ;; We assume 8 MB is the minimum DRAM and put
+ ;; the SP at the top for now.
+
+ move.d 0x40800000, $sp
+
+- ;; Figure out where the compressed piggyback image is
+- ;; in the flash (since we wont try to copy it to DRAM
+- ;; before unpacking). It is at _edata, but in flash.
++ ;; Figure out where the compressed piggyback image is.
++ ;; It is either in [NOR] flash (we don't want to copy it
++ ;; to DRAM before unpacking), or copied to DRAM
++ ;; by the [NAND] flash boot loader.
++ ;; The piggyback image is at _edata, but relative to where the
++ ;; image is actually located in memory, not where it is linked
++ ;; (the decompressor is linked at 0x40700000+ and runs there).
+ ;; Use (_edata - herami) as offset to the current PC.
+
+- move.d REG_ADDR(config, regi_config, r_bootsel), $r0
+- move.d [$r0], $r0
+- and.d REG_MASK(config, r_bootsel, boot_mode), $r0
+- cmp.d REG_STATE(config, r_bootsel, boot_mode, nand), $r0
+- beq hereami2
+- nop
+-hereami:
++hereami:
+ lapcq ., $r5 ; get PC
+ and.d 0x7fffffff, $r5 ; strip any non-cache bit
+- move.d $r5, $r0 ; save for later - flash address of 'herami'
++ move.d $r5, $r0 ; source address of 'herami'
+ add.d _edata, $r5
+ sub.d hereami, $r5 ; r5 = flash address of '_edata'
+ move.d hereami, $r1 ; destination
+- ba 2f
+- nop
+-hereami2:
+- lapcq ., $r5 ; get PC
+- and.d 0x00ffffff, $r5 ; strip any non-cache bit
+- move.d $r5, $r6
+- or.d 0x40200000, $r6
+- move.d $r6, $r0 ; save for later - flash address of 'herami'
+- add.d _edata, $r5
+- sub.d hereami2, $r5 ; r5 = flash address of '_edata'
+- add.d 0x40200000, $r5
+- move.d hereami2, $r1 ; destination
+-2:
+- ;; Copy text+data to DRAM
+
++ ;; Copy text+data to DRAM
++
+ move.d _edata, $r2 ; end destination
+-1: move.w [$r0+], $r3
+- move.w $r3, [$r1+]
+- cmp.d $r2, $r1
++1: move.w [$r0+], $r3 ; from herami+ source
++ move.w $r3, [$r1+] ; to hereami+ destination (linked address)
++ cmp.d $r2, $r1 ; finish when destination == _edata
+ bcs 1b
+ nop
+-
+- move.d input_data, $r0 ; for the decompressor
++ move.d input_data, $r0 ; for the decompressor
+ move.d $r5, [$r0] ; for the decompressor
+
+ ;; Clear the decompressors BSS (between _edata and _end)
+-
++
+ moveq 0, $r0
+ move.d _edata, $r1
+ move.d _end, $r2
+@@ -144,40 +124,47 @@
+ nop
+
+ ;; Save command line magic and address.
+- move.d _cmd_line_magic, $r12
+- move.d $r10, [$r12]
+- move.d _cmd_line_addr, $r12
+- move.d $r11, [$r12]
+-
++ move.d _cmd_line_magic, $r0
++ move.d $r10, [$r0]
++ move.d _cmd_line_addr, $r0
++ move.d $r11, [$r0]
++
++ ;; Save boot source indicator
++ move.d _boot_source, $r0
++ move.d $r12, [$r0]
++
+ ;; Do the decompression and save compressed size in _inptr
+
+ jsr decompress_kernel
+ nop
+
++ ;; Restore boot source indicator
++ move.d _boot_source, $r12
++ move.d [$r12], $r12
++
+ ;; Restore command line magic and address.
+ move.d _cmd_line_magic, $r10
+ move.d [$r10], $r10
+ move.d _cmd_line_addr, $r11
+ move.d [$r11], $r11
+-
++
+ ;; Put start address of root partition in r9 so the kernel can use it
+ ;; when mounting from flash
+ move.d input_data, $r0
+ move.d [$r0], $r9 ; flash address of compressed kernel
+ move.d inptr, $r0
+ add.d [$r0], $r9 ; size of compressed kernel
+- cmp.d 0x40200000, $r9
+- blo enter_kernel
+- nop
+- sub.d 0x40200000, $r9
+- add.d 0x4000, $r9
+-
+-enter_kernel:
++ cmp.d 0x40000000, $r9 ; image in DRAM ?
++ blo enter_kernel ; no, must be [NOR] flash, jump
++ nop ; delay slot
++ and.d 0x001fffff, $r9 ; assume compressed kernel was < 2M
++
++enter_kernel:
+ ;; Enter the decompressed kernel
+ move.d RAM_INIT_MAGIC, $r8 ; Tell kernel that DRAM is initialized
+ jump 0x40004000 ; kernel is linked to this address
+ nop
+-
++
+ .data
+
+ input_data:
+@@ -185,8 +172,8 @@
+ _cmd_line_magic:
+ .dword 0
+ _cmd_line_addr:
++ .dword 0
++_boot_source:
+ .dword 0
+-is_nand_boot:
+- .dword 0
+-
++
+ #include "../../lib/hw_settings.S"
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/compressed/misc.c linux-2.6.19.2.dev/arch/cris/arch-v32/boot/compressed/misc.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/compressed/misc.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/compressed/misc.c 2006-11-03 11:35:51.000000000 +0100
+@@ -1,15 +1,15 @@
+ /*
+ * misc.c
+ *
+- * $Id: misc.c,v 1.8 2005/04/24 18:34:29 starvik Exp $
+- *
+- * This is a collection of several routines from gzip-1.0.3
++ * $Id: misc.c,v 1.12 2006/11/03 10:35:51 pkj Exp $
++ *
++ * This is a collection of several routines from gzip-1.0.3
+ * adapted for Linux.
+ *
+ * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
+ * puts by Nick Holloway 1993, better puts by Martin Mares 1995
+ * adoptation for Linux/CRIS Axis Communications AB, 1999
+- *
++ *
+ */
+
+ /* where the piggybacked kernel image expects itself to live.
+@@ -20,11 +20,11 @@
+
+ #define KERNEL_LOAD_ADR 0x40004000
+
+-
+ #include <linux/types.h>
+ #include <asm/arch/hwregs/reg_rdwr.h>
+ #include <asm/arch/hwregs/reg_map.h>
+ #include <asm/arch/hwregs/ser_defs.h>
++#include <asm/arch/hwregs/pinmux_defs.h>
+
+ /*
+ * gzip declarations
+@@ -66,8 +66,8 @@
+ #define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */
+ #define RESERVED 0xC0 /* bit 6,7: reserved */
+
+-#define get_byte() inbuf[inptr++]
+-
++#define get_byte() inbuf[inptr++]
++
+ /* Diagnostic functions */
+ #ifdef DEBUG
+ # define Assert(cond,msg) {if(!(cond)) error(msg);}
+@@ -96,20 +96,20 @@
+ static long bytes_out = 0;
+ static uch *output_data;
+ static unsigned long output_ptr = 0;
+-
++
+ static void *malloc(int size);
+ static void free(void *where);
+ static void error(char *m);
+ static void gzip_mark(void **);
+ static void gzip_release(void **);
+-
++
+ static void puts(const char *);
+
+ /* the "heap" is put directly after the BSS ends, at end */
+-
++
+ extern int _end;
+ static long free_mem_ptr = (long)&_end;
+-
++
+ #include "../../../../../lib/inflate.c"
+
+ static void *malloc(int size)
+@@ -152,7 +152,7 @@
+ rs = REG_RD(ser, regi_ser, rs_stat_din);
+ }
+ while (!rs.tr_rdy);/* Wait for tranceiver. */
+-
++
+ REG_WR(ser, regi_ser, rw_dout, dout);
+ }
+
+@@ -209,9 +209,9 @@
+ ulg c = crc; /* temporary variable */
+ unsigned n;
+ uch *in, *out, ch;
+-
++
+ in = window;
+- out = &output_data[output_ptr];
++ out = &output_data[output_ptr];
+ for (n = 0; n < outcnt; n++) {
+ ch = *out++ = *in++;
+ c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
+@@ -225,9 +225,9 @@
+ static void
+ error(char *x)
+ {
+- puts("\n\n");
++ puts("\r\n\n");
+ puts(x);
+- puts("\n\n -- System halted\n");
++ puts("\r\n\n -- System halted\n");
+
+ while(1); /* Halt */
+ }
+@@ -246,13 +246,13 @@
+ reg_ser_rw_rec_ctrl rec_ctrl;
+ reg_ser_rw_tr_baud_div tr_baud;
+ reg_ser_rw_rec_baud_div rec_baud;
+-
++
+ /* Turn off XOFF. */
+ xoff = REG_RD(ser, regi_ser, rw_xoff);
+-
++
+ xoff.chr = 0;
+ xoff.automatic = regk_ser_no;
+-
++
+ REG_WR(ser, regi_ser, rw_xoff, xoff);
+
+ /* Set baudrate and stopbits. */
+@@ -260,19 +260,21 @@
+ rec_ctrl = REG_RD(ser, regi_ser, rw_rec_ctrl);
+ tr_baud = REG_RD(ser, regi_ser, rw_tr_baud_div);
+ rec_baud = REG_RD(ser, regi_ser, rw_rec_baud_div);
+-
++
+ tr_ctrl.stop_bits = 1; /* 2 stop bits. */
+-
+- /*
+- * The baudrate setup is a bit fishy, but in the end the tranceiver is
+- * set to 4800 and the receiver to 115200. The magic value is
+- * 29.493 MHz.
++ tr_ctrl.en = 1; /* enable transmitter */
++ rec_ctrl.en = 1; /* enabler receiver */
++
++ /*
++ * The baudrate setup used to be a bit fishy, but now transmitter and
++ * receiver are both set to the intended baud rate, 115200.
++ * The magic value is 29.493 MHz.
+ */
+ tr_ctrl.base_freq = regk_ser_f29_493;
+ rec_ctrl.base_freq = regk_ser_f29_493;
+- tr_baud.div = (29493000 / 8) / 4800;
++ tr_baud.div = (29493000 / 8) / 115200;
+ rec_baud.div = (29493000 / 8) / 115200;
+-
++
+ REG_WR(ser, regi_ser, rw_tr_ctrl, tr_ctrl);
+ REG_WR(ser, regi_ser, rw_tr_baud_div, tr_baud);
+ REG_WR(ser, regi_ser, rw_rec_ctrl, rec_ctrl);
+@@ -283,22 +285,28 @@
+ decompress_kernel()
+ {
+ char revision;
+-
++ reg_pinmux_rw_hwprot hwprot;
++
+ /* input_data is set in head.S */
+ inbuf = input_data;
+-
++
++ hwprot = REG_RD(pinmux, regi_pinmux, rw_hwprot);
+ #ifdef CONFIG_ETRAX_DEBUG_PORT0
+ serial_setup(regi_ser0);
+ #endif
+ #ifdef CONFIG_ETRAX_DEBUG_PORT1
++ hwprot.ser1 = regk_pinmux_yes;
+ serial_setup(regi_ser1);
+ #endif
+ #ifdef CONFIG_ETRAX_DEBUG_PORT2
++ hwprot.ser2 = regk_pinmux_yes;
+ serial_setup(regi_ser2);
+ #endif
+ #ifdef CONFIG_ETRAX_DEBUG_PORT3
++ hwprot.ser3 = regk_pinmux_yes;
+ serial_setup(regi_ser3);
+ #endif
++ REG_WR(pinmux, regi_pinmux, rw_hwprot, hwprot);
+
+ setup_normal_output_buffer();
+
+@@ -307,11 +315,11 @@
+ __asm__ volatile ("move $vr,%0" : "=rm" (revision));
+ if (revision < 32)
+ {
+- puts("You need an ETRAX FS to run Linux 2.6/crisv32.\n");
++ puts("You need an ETRAX FS to run Linux 2.6/crisv32.\r\n");
+ while(1);
+ }
+
+- puts("Uncompressing Linux...\n");
++ puts("Uncompressing Linux...\r\n");
+ gunzip();
+- puts("Done. Now booting the kernel.\n");
++ puts("Done. Now booting the kernel.\r\n");
+ }
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/Makefile linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/Makefile
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/Makefile 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/Makefile 2007-01-17 14:24:50.000000000 +0100
+@@ -1,36 +1,29 @@
+ #
+-# Makefile for rescue code
++# Makefile for rescue (bootstrap) code
+ #
+-target = $(target_rescue_dir)
+-src = $(src_rescue_dir)
+
+ CC = gcc-cris -mlinux -march=v32 $(LINUXINCLUDE)
+ CFLAGS = -O2
+-LD = gcc-cris -mlinux -march=v32 -nostdlib
++LD = gcc-cris -mlinux -march=v32 -nostdlib
++LDFLAGS = -T $(obj)/rescue.ld
++LDPOSTFLAGS = -lgcc
+ OBJCOPY = objcopy-cris
+ OBJCOPYFLAGS = -O binary --remove-section=.bss
+-
+-all: $(target)/rescue.bin
+-
+-rescue: rescue.bin
+- # do nothing
+-
+-$(target)/rescue.bin: $(target) $(target)/head.o
+- $(LD) -T $(src)/rescue.ld -o $(target)/rescue.o $(target)/head.o
+- $(OBJCOPY) $(OBJCOPYFLAGS) $(target)/rescue.o $(target)/rescue.bin
+- cp -p $(target)/rescue.bin $(objtree)
+-
+-$(target):
+- mkdir -p $(target)
+-
+-$(target)/head.o: $(src)/head.S
+- $(CC) -D__ASSEMBLY__ -c $< -o $*.o
+-
+-clean:
+- rm -f $(target)/*.o $(target)/*.bin
+-
+-fastdep:
+-
+-modules:
+-
+-modules-install:
++obj-y = head.o bootload.o crisv32_nand.o nand_base.o nand_ids.o nand_ecc.o \
++ lib.o
++OBJECTS = $(obj)/head.o $(obj)/bootload.o \
++ $(obj)/crisv32_nand.o $(obj)/nand_base.o \
++ $(obj)/nand_ids.o $(obj)/nand_ecc.o \
++ $(obj)/lib.o $(obj)/../../lib/lib.a
++
++targets := rescue.o rescue.bin
++
++quiet_cmd_ldlibgcc = LD $@
++cmd_ldlibgcc = $(LD) $(LDFLAGS) $(filter-out FORCE,$^) $(LDPOSTFLAGS) -o $@
++
++$(obj)/rescue.o: $(OBJECTS) FORCE
++ $(call if_changed,ldlibgcc)
++
++$(obj)/rescue.bin: $(obj)/rescue.o FORCE
++ $(call if_changed,objcopy)
++ cp -p $(obj)/rescue.bin $(objtree)
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/bootload.c linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/bootload.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/bootload.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/bootload.c 2006-11-28 11:05:39.000000000 +0100
+@@ -0,0 +1,277 @@
++/*
++ * bootload.c
++ * Simple boot loader for NAND chips on Etrax FS
++ *
++ * $Id: bootload.c,v 1.8 2006/11/28 10:05:39 ricardw Exp $
++ *
++ */
++
++#include <linux/types.h>
++#include <linux/delay.h>
++
++#include "mtd.h"
++#include "nand.h"
++
++#include <asm/arch/hwregs/reg_rdwr.h>
++#include <asm/arch/hwregs/reg_map.h>
++#include <asm/arch/hwregs/pinmux_defs.h>
++
++#include "lib.h"
++
++#define BOOT_ADDR (CONFIG_ETRAX_PTABLE_SECTOR + 0x40200000)
++
++/* bits for nand_rw() `cmd'; or together as needed */
++
++#define NANDRW_READ 0x01
++#define NANDRW_WRITE 0x00
++#define NANDRW_JFFS2 0x02
++#define NANDRW_JFFS2_SKIP 0x04
++
++#define ROUND_DOWN(value, boundary) ((value) & (~((boundary)-1)))
++
++/* set $r8 to RAM_INIT_MAGIC, $r12 to NAND_BOOT_MAGIC then jump */
++#define BOOT(addr) __asm__ volatile (" \
++ move.d 0x56902387, $r8\n\
++ move.d 0x9A9DB001, $r12\n\
++ jump %0\n\
++ nop\n\
++ " : : "r" (addr))
++
++#define D(x)
++
++extern struct mtd_info *crisv32_nand_flash_probe(void);
++
++extern int _end, _bss, _edata;
++
++/*
++ * NAND read/write from U-Boot 1.4.4
++ * Modified for newer mtd and use of mtd interface instead of nand directly.
++ *
++ * cmd: 0: NANDRW_WRITE write, fail on bad block
++ * 1: NANDRW_READ read, fail on bad block
++ * 2: NANDRW_WRITE | NANDRW_JFFS2 write, skip bad blocks
++ * 3: NANDRW_READ | NANDRW_JFFS2 read, data all 0xff for bad blocks
++ * 7: NANDRW_READ | NANDRW_JFFS2 | NANDRW_JFFS2_SKIP read, skip bad blocks
++ */
++static int
++nand_rw (struct mtd_info* mtd, int cmd,
++ size_t start, size_t len,
++ size_t *retlen, u_char * buf)
++{
++ int ret = 0, n, total = 0;
++
++ /* eblk (once set) is the start of the erase block containing the
++ * data being processed.
++ */
++ size_t eblk = ~0; /* force mismatch on first pass */
++ size_t erasesize = mtd->erasesize;
++
++ while (len) {
++ if ((start & (-erasesize)) != eblk) {
++ /* have crossed into new erase block, deal with
++ * it if it is marked bad.
++ */
++ eblk = start & (-erasesize); /* start of block */
++ D(
++ puts("New block ");
++ putx(eblk);
++ putnl();
++ )
++ if (mtd->block_isbad(mtd, eblk)) {
++ if (cmd == (NANDRW_READ | NANDRW_JFFS2)) {
++ while (len > 0 &&
++ start - eblk < erasesize) {
++ *(buf++) = 0xff;
++ ++start;
++ ++total;
++ --len;
++ }
++ continue;
++ } else if (cmd == (NANDRW_READ | NANDRW_JFFS2 | NANDRW_JFFS2_SKIP)) {
++ start += erasesize;
++ continue;
++ } else if (cmd == (NANDRW_WRITE | NANDRW_JFFS2)) {
++ /* skip bad block */
++ start += erasesize;
++ continue;
++ } else {
++ ret = 1;
++ break;
++ }
++ }
++ }
++ /* The ECC will not be calculated correctly if
++ less than 512 is written or read */
++ /* Is request at least 512 bytes AND it starts on a proper boundry */
++ if((start != ROUND_DOWN(start, 0x200)) || (len < 0x200))
++ puts("Warning block writes should be at least 512 bytes and start on a 512 byte boundry\r\n");
++
++#if 0
++ buf = (void *) 0x38008000; /* to fixed address, for testing */
++#endif
++
++ if (cmd & NANDRW_READ) {
++ ret = mtd->read_ecc(mtd, start,
++ min(len, eblk + erasesize - start),
++ (size_t *)&n, (u_char*)buf,
++ NULL, NULL);
++ } else {
++ ret = mtd->write_ecc(mtd, start,
++ min(len, eblk + erasesize - start),
++ (size_t *)&n, (u_char*)buf,
++ NULL, NULL);
++ }
++
++ if (ret) {
++ break;
++ }
++
++ start += n;
++ buf += n;
++ total += n;
++ len -= n;
++ }
++ if (retlen)
++ *retlen = total;
++
++ return ret;
++}
++
++
++void
++bootload()
++{
++ char revision;
++ struct mtd_info *mtd;
++
++ serial_init();
++
++ __asm__ volatile ("move $vr,%0" : "=rm" (revision));
++ if (revision < 32)
++ {
++ puts("You need an ETRAX FS to run Linux 2.6/crisv32.\r\n");
++ while(1);
++ }
++
++ puts("\r\n\nETRAX FS NAND boot loader\r\n");
++ puts("=========================\r\n");
++ puts("Rev 1, " __DATE__ " " __TIME__ "\r\n");
++
++ puts("CPU revision: ");
++ putx(revision);
++ putnl();
++
++ puts("Bootloader main at ") ;
++ putx((int) bootload);
++ putnl();
++
++ puts("Data end: ");
++ putx((long) &_edata);
++ putnl();
++
++ puts("Bss: ");
++ putx((long) &_bss);
++ putnl();
++
++ puts("Heap: ");
++ putx((long) &_end);
++ putnl();
++
++#if 0 /* loop calibration */
++ volatile int i;
++ puts ("10000 loops...");
++ for (i = 0; i < 10000; i++)
++ udelay(1000);
++ puts("done\r\n");
++#endif
++
++ puts("Identifying nand chip...\r\n");
++ mtd = crisv32_nand_flash_probe();
++ puts("Done.\r\n");
++
++ if (mtd) {
++ puts("Chip identified. ");
++#if 0 /* print chip parameters */
++ if (mtd->name)
++ puts(mtd->name);
++
++ puts("\r\ntype: ");
++ putx(mtd->type);
++ puts("\r\nflags: ");
++ putx(mtd->flags);
++ puts("\r\nsize: ");
++ putx(mtd->size);
++ puts("\r\nerasesize: ");
++ putx(mtd->erasesize);
++ puts("\r\noobblock: ");
++ putx(mtd->oobblock);
++ puts("\r\noobsize: ");
++ putx(mtd->oobsize);
++ puts("\r\necctype: ");
++ putx(mtd->ecctype);
++ puts("\r\neccsize: ");
++ putx(mtd->eccsize);
++#endif
++ putnl();
++
++ puts("Bad blocks:\r\n");
++
++ int i;
++ for (i = 0; i < mtd->size; i += mtd->erasesize) {
++ if (mtd->block_isbad(mtd, i)) {
++ putx(i);
++ putnl();
++ }
++ }
++
++#if 0 /* print oob parameters */
++ puts("Oob info:\r\n");
++ puts("useecc: ");
++ putx(mtd->oobinfo.useecc);
++ puts("\r\neccbytes: ");
++ putx(mtd->oobinfo.eccbytes);
++ puts("\r\neccpos: ");
++ for (i = 0; i < mtd->oobinfo.eccbytes; i++) {
++ putx(mtd->oobinfo.eccpos[i]);
++ putc(' ');
++ }
++ putnl();
++#endif
++
++ puts("Bootload in progress...");
++ int res, copied;
++ res = nand_rw(mtd,
++ NANDRW_READ | NANDRW_JFFS2 | NANDRW_JFFS2_SKIP,
++ CONFIG_ETRAX_PTABLE_SECTOR,
++ 0x200000, /* 2 megs */
++ &copied,
++ (void *) BOOT_ADDR);
++
++ puts("complete, status ");
++ putx(res);
++ puts(", loaded ");
++ putx(copied);
++ puts(" bytes\r\n");
++#if 1
++ puts("Data in DRAM:\r\n");
++ putx(* (int *) (BOOT_ADDR + 0));
++ putc(' ');
++ putx(* (int *) (BOOT_ADDR + 4));
++ putc(' ');
++ putx(* (int *) (BOOT_ADDR + 8));
++ putnl();
++#endif
++
++ if (res)
++ error("Corrupt data in NAND flash.");
++ else
++ {
++ puts("Booting...\r\n");
++ BOOT(BOOT_ADDR);
++ }
++ } else
++ error("No NAND flash chip found to boot from.");
++
++ while (1)
++ ; /* hang around until hell freezes over */
++}
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/crisv32_nand.c linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/crisv32_nand.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/crisv32_nand.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/crisv32_nand.c 2006-11-21 15:40:02.000000000 +0100
+@@ -0,0 +1,157 @@
++/*
++ * Taken from arch/cris/arch-v32/drivers/nandflash.c
++ * and modified to use for boot loader.
++ *
++ * Copyright (c) 2004
++ *
++ * Derived from drivers/mtd/nand/spia.c
++ * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
++ *
++ * $Id: crisv32_nand.c,v 1.2 2006/11/21 14:40:02 ricardw Exp $
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ */
++
++#include "mtd.h"
++#include "nand.h"
++
++#if 0
++#include <linux/mtd/partitions.h>
++#endif
++
++#if 0
++#include <asm/arch/memmap.h>
++#endif
++
++#include <asm/arch/hwregs/reg_map.h>
++#include <asm/arch/hwregs/reg_rdwr.h>
++#include <asm/arch/hwregs/gio_defs.h>
++#include <asm/arch/hwregs/bif_core_defs.h>
++
++#include "lib.h"
++
++/* Hardware */
++
++#define CE_BIT 4
++#define CLE_BIT 5
++#define ALE_BIT 6
++#define BY_BIT 7
++
++#define NAND_RD_ADDR 0x90000000 /* read address */
++#define NAND_WR_ADDR 0x94000000 /* write address */
++
++static struct mtd_info *crisv32_mtd = NULL;
++
++/*
++ * hardware specific access to control-lines
++ */
++static void crisv32_hwcontrol(struct mtd_info *mtd, int cmd)
++{
++ unsigned long flags;
++ reg_gio_rw_pa_dout dout = REG_RD(gio, regi_gio, rw_pa_dout);
++
++ switch(cmd){
++ case NAND_CTL_SETCLE:
++ dout.data |= (1<<CLE_BIT);
++ break;
++ case NAND_CTL_CLRCLE:
++ dout.data &= ~(1<<CLE_BIT);
++ break;
++ case NAND_CTL_SETALE:
++ dout.data |= (1<<ALE_BIT);
++ break;
++ case NAND_CTL_CLRALE:
++ dout.data &= ~(1<<ALE_BIT);
++ break;
++ case NAND_CTL_SETNCE:
++ dout.data &= ~(1<<CE_BIT);
++ break;
++ case NAND_CTL_CLRNCE:
++ dout.data |= (1<<CE_BIT);
++ break;
++ }
++ REG_WR(gio, regi_gio, rw_pa_dout, dout);
++#if 0
++ /* read from gpio reg to flush pipeline.
++ * doesn't seem to be necessary.
++ */
++ (void) REG_RD(gio, regi_gio, rw_pa_dout); /* gpio sync */
++#endif
++}
++
++/*
++ * read device ready pin
++ */
++int crisv32_device_ready(struct mtd_info *mtd)
++{
++ reg_gio_r_pa_din din = REG_RD(gio, regi_gio, r_pa_din);
++ return ((din.data & (1 << BY_BIT)) >> BY_BIT);
++}
++
++/*
++ * Main initialization routine
++ */
++struct mtd_info* crisv32_nand_flash_probe (void)
++{
++ reg_bif_core_rw_grp3_cfg bif_cfg = REG_RD(bif_core, regi_bif_core, rw_grp3_cfg);
++ reg_gio_rw_pa_oe pa_oe = REG_RD(gio, regi_gio, rw_pa_oe);
++ struct nand_chip *this;
++ int err = 0;
++
++ /* Allocate memory for MTD device structure and private data */
++ crisv32_mtd = malloc (sizeof(struct mtd_info) + sizeof (struct nand_chip));
++ if (!crisv32_mtd) {
++ puts ("Unable to allocate CRISv32 NAND MTD device structure.\r\n");
++ err = -ENOMEM;
++ return NULL;
++ }
++
++ /* Get pointer to private data */
++ this = (struct nand_chip *) (&crisv32_mtd[1]);
++
++ pa_oe.oe |= 1 << CE_BIT;
++ pa_oe.oe |= 1 << ALE_BIT;
++ pa_oe.oe |= 1 << CLE_BIT;
++ pa_oe.oe &= ~ (1 << BY_BIT);
++ REG_WR(gio, regi_gio, rw_pa_oe, pa_oe);
++
++ bif_cfg.gated_csp0 = regk_bif_core_rd;
++ bif_cfg.gated_csp1 = regk_bif_core_wr;
++ REG_WR(bif_core, regi_bif_core, rw_grp3_cfg, bif_cfg);
++
++ /* Initialize structures */
++ memset((char *) crisv32_mtd, 0, sizeof(struct mtd_info));
++ memset((char *) this, 0, sizeof(struct nand_chip));
++
++ /* Link the private data with the MTD structure */
++ crisv32_mtd->priv = this;
++
++ /* Set address of NAND IO lines */
++ this->IO_ADDR_R = (void *) NAND_RD_ADDR;
++ this->IO_ADDR_W = (void *) NAND_WR_ADDR;
++ this->hwcontrol = crisv32_hwcontrol;
++ this->dev_ready = crisv32_device_ready;
++ /* 20 us command delay time */
++ this->chip_delay = 20;
++ this->eccmode = NAND_ECC_SOFT;
++
++#if 0 /* don't use BBT in boot loader */
++ /* Enable the following for a flash based bad block table */
++ this->options = NAND_USE_FLASH_BBT;
++#endif
++ /* don't scan for BBT */
++ this->options = NAND_SKIP_BBTSCAN;
++
++ /* Scan to find existance of the device */
++ if (nand_scan (crisv32_mtd, 1)) {
++ err = -ENXIO;
++ puts ("nand_scan failed\r\n");
++ free (crisv32_mtd);
++ return NULL;
++ }
++
++ return crisv32_mtd;
++}
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/head.S linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/head.S
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/head.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/head.S 2007-01-31 16:52:19.000000000 +0100
+@@ -1,14 +1,85 @@
+-/* $Id: head.S,v 1.4 2004/11/01 16:10:28 starvik Exp $
+- *
+- * This used to be the rescue code but now that is handled by the
+- * RedBoot based RFL instead. Nothing to see here, move along.
++/* $Id: head.S,v 1.16 2007/01/31 15:52:19 pkj Exp $
++ *
++ * Simple boot loader which can also handle NAND chips.
+ */
+
+-#include <asm/arch/hwregs/reg_map_asm.h>
+-#include <asm/arch/hwregs/config_defs_asm.h>
++#include <asm/arch/hwregs/asm/reg_map_asm.h>
++#include <asm/arch/hwregs/asm/config_defs_asm.h>
++
++#define RAM_INIT_MAGIC 0x56902387
++#define NAND_BOOT_MAGIC 0x9A9DB001
++
++;; Debugging. Normally all these are set to 0.
++#define LEDS (0)
++#define LEDTEST (0)
++#define FLASH_LEDS_INSTEAD_OF_BOOT (0)
++#define SERIAL_DUMP (0)
++#define SERIAL_PORT (0)
++#define SERIAL_RECEIVE (0)
++
++#if LEDS
++#include <asm/arch/hwregs/asm/gio_defs_asm.h>
++#include <asm/arch/hwregs/asm/pinmux_defs_asm.h>
++#include <asm/arch/hwregs/asm/bif_core_defs_asm.h>
++#endif
++
++#if SERIAL_DUMP
++#include <asm/arch/hwregs/asm/ser_defs_asm.h>
++#include <asm/arch/hwregs/asm/pinmux_defs_asm.h>
++#endif
++
++
++#if (SERIAL_PORT == 0)
++#define regi_serial regi_ser0
++#endif
++#if (SERIAL_PORT == 1)
++#define regi_serial regi_ser1
++#endif
++
++;; Macros
++
++#if LEDS
++.macro SAY x
++ orq 31, $r9
++ and.d ~(\x), $r9
++ move.d $r9, [$r8]
++.endm
++#else
++.macro SAY x
++ ;; nothing
++.endm
++#endif
++
++#if SERIAL_DUMP
++.macro DISPLAY x
++ move.d \x, $r6 ; save value
++ moveq 28, $r5 ; counter / shift amount
++8:
++ move.d $r6, $r3 ; fetch value
++ bsr nybbleout
++ lsr.d $r5, $r3 ; shift nybble we want (delay slot)
++ subq 4, $r5 ; count down bits
++ bpl 8b ; loop
++ nop
++ bsr serout
++ moveq 13, $r3 ; delay slot
++ bsr serout
++ moveq 10, $r3 ; delay slot
++.endm
++#else
++.macro DISPLAY x
++ ;; nothing
++.endm
++#endif
++
++
++;; Code
+
+ .text
++start:
+
++ ;; TODO: Add code for Ronny's search-for-good-block boot rom algorithm
++
+ ;; Start clocks for used blocks.
+ move.d REG_ADDR(config, regi_config, rw_clk_ctrl), $r1
+ move.d [$r1], $r0
+@@ -17,22 +88,258 @@
+ REG_STATE(config, rw_clk_ctrl, fix_io, yes), $r0
+ move.d $r0, [$r1]
+
+- ;; Copy 68KB NAND flash to Internal RAM (if NAND boot)
+- move.d 0x38004000, $r10
+- move.d 0x8000, $r11
+- move.d 0x11000, $r12
+- move.d copy_complete, $r13
+- and.d 0x000fffff, $r13
+- or.d 0x38000000, $r13
++
++#if LEDS
++ ;; set up for led control on PB 0..4
++ move.d REG_ADDR(gio, regi_gio, rw_pb_dout), $r8 ; output reg
++ move.d [$r8], $r9 ; shadow
++
++ ;; set up pinmux
++ move.d REG_ADDR(pinmux, regi_pinmux, rw_pb_gio), $r2
++ move.d [$r2], $r3
++ orq 31, $r3
++ move.d $r3, [$r2]
++
++ ;; set up GPIO
++ ;; set to outputs
++ move.d REG_ADDR(gio, regi_gio, rw_pb_oe), $r2
++ move.d [$r2], $r3
++ orq 31, $r3
++ move.d $r3, [$r2]
++
++
++#if LEDTEST
++ ;; led test
++
++ moveq 0, $r1 ; led 5-bit binary counter
++1:
++ or.d 31, $r9
++ xor $r1, $r9
++ move.d $r9, [$r8]
++ addq 1, $r1
++
++ move.d 100000000, $r2 ; delay loop (100e6 => 1s @200Mc)
++2:
++ bne 2b
++ subq 1, $r2
++
++ ba 1b ; loop
++ nop
++#endif
++
++#endif
++
++
++check_nand_boot:
++ ;; Check boot source by checking highest nybble of PC:
++ ;; If we're running at address 0x0XXXXXXX, we're in flash/eprom/sram
++ ;; If we're running at address 0x38000000, we're in internal RAM,
++ ;; so we're most likely coming from NAND.
++ ;; If we're running at address 0x40000000, we're in SDRAM,
++ ;; so we've most likely been started by some sort of bootstrapper
++ ;; e.g. fsboot, which in turn implies NAND, else we would be booting
++ ;; normally at 0x0XXXXXXX
++
++ SAY 1
++
++here:
++ lapcq ., $r0 ; get PC
++ sub.d (here-start), $r0 ; offset from here
++ beq normal_boot ; running at address 0 - normal boot
++ move.d $r0, $r13 ; save offset for later (unused delay slot)
++ lsrq 28, $r0 ; get highest nybble
++
++ SAY 2
++
++ ;; Prepare to copy 128KB of the NAND flash to internal RAM
++ move.d 0x38000200, $r10 ; dest in internal RAM
++ move.d 0x1fe00, $r12 ; #bytes
++ cmpq 4, $r0 ; running in RAM => started by fsboot
++ bhs copy_from_ram
++ movu.w 0x0200, $r11 ; source in flash (byte address) (DELAY SLOT)
+
+ #include "../../lib/nand_init.S"
+
+- ;; No NAND found
++#if LEDS
++ ;; must set up registers again (clobbered by nand_init)
++ move.d REG_ADDR(gio, regi_gio, rw_pb_dout), $r8 ; output reg
++ move.d [$r8], $r9 ; shadow
++#endif
++
++ SAY 3
++
++ ba copy_complete
++ nop
++
++ ; Since the code above has to reside within the first 256 bytes of
++ ; NAND flash, verify that the code so far hasn't gone past this
++ ; limit. If you're considering removing this, you haven't
++ ; properly understood the problem; see nand_init.S for details.
++ .org PAGE_SIZE_ADDRESSES ; from nand_init.S
++ .org PAGE_SIZE_BYTES ; from nand_init.S
++
++normal_boot:
++ SAY 4
++
++ ;; Normal NOR boot
+ move.d CONFIG_ETRAX_PTABLE_SECTOR, $r10
+- jump $r10 ; Jump to decompresser
++ jump $r10 ; Jump to decompresser
++ nop
++
++copy_from_ram:
++ add.d $r13, $r11 ; mem offs + src offs -> src addr
++1:
++ move.d [$r11+], $r0 ; read source
++ subq 4, $r12 ; 4 bytes at a time
++ bne 1b ; loop until done
++ move.d $r0, [$r10+] ; write dest (DELAY SLOT)
++ jump copy_complete ; jump to internal RAM
++ nop ; delay slot
++
++copy_complete:
++ SAY 5
++
++#if FLASH_LEDS_INSTEAD_OF_BOOT
++
++flash:
++
++ ;; led test
++
++ moveq 0, $r1 ; led binary counter
++1:
++ or.d 31, $r9
++ xor $r1, $r9
++ move.d $r9, [$r8]
++ addq 1, $r1
++
++ move.d 100000000, $r2 ; delay loop (100e6 => 1s)
++2:
++ bne 2b
++ subq 1, $r2
++
++ ba 1b ; loop forever
+ nop
++#endif
+
+-copy_complete:
+- move.d 0x38000000 + CONFIG_ETRAX_PTABLE_SECTOR, $r10
+- jump $r10 ; Jump to decompresser
++
++#if SERIAL_DUMP
++ ;; dump memory to serial port
++
++#if (SERIAL_PORT == 1)
++ ;; set up serial-1 pins
++ move.d REG_ADDR(pinmux, regi_pinmux, rw_hwprot), $r1
++ move.d [$r1], $r0
++ or.d REG_STATE(pinmux, rw_hwprot, ser1, yes), $r0
++ move.d $r0, [$r1]
++#endif
++
++ ;; rw_xoff: chr and automatic = 0
++ move.d REG_ADDR(ser, regi_serial, rw_xoff), $r1
++ move.d [$r1], $r0
++ and.d ~(REG_MASK(ser, rw_xoff, automatic) | REG_MASK(ser, rw_xoff, chr)), $r0
++ move.d $r0, [$r1]
++
++ ;; tr control
++ move.d REG_ADDR(ser, regi_serial, rw_tr_ctrl), $r1
++ move.d [$r1], $r0
++ and.d ~(REG_MASK(ser, rw_tr_ctrl, base_freq) | REG_MASK(ser, rw_tr_ctrl, stop_bits)), $r0
++ or.d REG_STATE(ser, rw_tr_ctrl, stop_bits, bits2) | REG_STATE(ser, rw_tr_ctrl, base_freq, f29_493) | REG_STATE(ser, rw_tr_ctrl, en, yes), $r0
++ move.d $r0, [$r1]
++
++ ;; tr baud
++ move.d REG_ADDR(ser, regi_serial, rw_tr_baud_div), $r1
++ move.d [$r1], $r0
++ move.w (29493000 / 8) / 115200, $r0
++ move.d $r0, [$r1]
++
++#if SERIAL_RECEIVE
++ ;; rec control
++ move.d REG_ADDR(ser, regi_serial, rw_rec_ctrl), $r1
++ move.d [$r1], $r0
++ and.d ~(REG_MASK(ser, rw_rec_ctrl, base_freq)), $r0
++ or.d REG_STATE(ser, rw_rec_ctrl, base_freq, f29_493) | REG_STATE(ser, rw_tr_ctrl, en, yes), $r0
++ move.d $r0, [$r1]
++
++ ;; rec baud
++ move.d REG_ADDR(ser, regi_serial, rw_rec_baud_div), $r1
++ move.d [$r1], $r0
++ move.w (29493000 / 8) / 115200, $r0
++ move.d $r0, [$r1]
++#endif
++
++ ;; dump memory
++
++ move.d 0x38000000, $r5 ; pointer
++
++ bsr serout
++ moveq 13, $r3
++ bsr serout
++ moveq 10, $r3
++ bsr serout
++ moveq 10, $r3
++
++1:
++ movu.b [$r5+], $r3 ; get value
++ move.d $r3, $r6 ; save
++
++ bsr nybbleout
++ lsrq 4, $r3 ; high nybble (delay slot)
++
++ move.d $r6, $r3 ; restore
++ bsr nybbleout
++ andq 15, $r3 ; delay slot
++
++ movu.b 32, $r3
++ bsr serout
+ nop
++
++ move.d $r5, $r3
++ andq 15, $r3
++ bne 1b
++ nop
++
++ bsr serout
++ moveq 13, $r3 ; delay slot
++ bsr serout
++ moveq 10, $r3 ; delay slot
++
++ ba 1b ; loop forever
++ nop
++
++nybbleout:
++ cmpq 10, $r3
++ blo 1f
++ addq 48, $r3 ; delay slot
++ addq 7, $r3
++1:
++serout:
++ move.d REG_ADDR(ser, regi_serial, rs_stat_din), $r1
++ move.d REG_ADDR(ser, regi_serial, rw_dout), $r2
++2:
++ move.d [$r1], $r4
++ btstq REG_BIT(ser, rs_stat_din, tr_rdy), $r4
++ bpl 2b
++ nop
++ ret
++ move.d $r3, [$r2] ; delay slot
++
++#endif
++
++;; Init DRAM
++
++#include "../../lib/dram_init.S"
++ move.d RAM_INIT_MAGIC, $r8 ; tell kernel boot loader dram init'd
++ move.d NAND_BOOT_MAGIC, $r12 ; booted from NAND flash
++
++;; TODO: Clear .bss (not needed yet because size of .bss is zero)
++;; TODO: Change .ld script so that BSS is in DRAM?
++
++;; Ok, time to do something. Continue with boot loader in C.
++;; Must set up minimal C environment first though.
++
++ move.d 0x38020000, $sp ; stack pointer at top of internal RAM
++
++ move.d bootload, $r10
++ jump $r10 ; Jump to boot loader
++ nop
++
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/lib.c linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/lib.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/lib.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/lib.c 2006-11-03 11:35:52.000000000 +0100
+@@ -0,0 +1,243 @@
++/*
++ * lib.c
++ * Small practical functions for boot loader
++ * malloc/free
++ * memcpy/memset
++ * writeb/writew/readb/readw
++ * putc/puts/putnybble/putx
++ * error/error2/BUG
++ * serial_init
++ *
++ * $Id: lib.c,v 1.4 2006/11/03 10:35:52 pkj Exp $
++ *
++ */
++
++#include <linux/types.h>
++#include <asm/arch/hwregs/reg_rdwr.h>
++#include <asm/arch/hwregs/reg_map.h>
++#include <asm/arch/hwregs/ser_defs.h>
++#include <asm/arch/hwregs/pinmux_defs.h>
++
++#include "lib.h"
++
++/* the "heap" is put directly after BSS ends, at _end */
++
++extern int _end;
++static long free_mem_ptr = (long)&_end;
++
++void *malloc(int size)
++{
++ void *p;
++
++ if (size <0) error("Malloc error");
++
++ free_mem_ptr = (free_mem_ptr + 3) & ~3; /* Align */
++
++ p = (void *)free_mem_ptr;
++ free_mem_ptr += size;
++
++ return p;
++}
++
++void free(void *where)
++{ /* Don't care */
++}
++
++/* I/O */
++
++unsigned char readb(const volatile void *addr)
++{
++ return *(volatile unsigned char *) addr;
++}
++
++unsigned short readw(const volatile void *addr)
++{
++ return *(volatile unsigned short *) addr;
++}
++
++void writeb(unsigned char b, volatile void *addr)
++{
++ *(volatile unsigned char *) addr = b;
++}
++
++void writew(unsigned short b, volatile void *addr)
++{
++ *(volatile unsigned short *) addr = b;
++}
++
++/* info and error messages to serial console */
++
++#ifndef CONFIG_ETRAX_DEBUG_PORT_NULL
++static inline void
++serout(const char c, reg_scope_instances regi_ser)
++{
++ reg_ser_rs_stat_din rs;
++ reg_ser_rw_dout dout = {.data = c};
++
++ do {
++ rs = REG_RD(ser, regi_ser, rs_stat_din);
++ }
++ while (!rs.tr_rdy);/* Wait for tranceiver. */
++
++ REG_WR(ser, regi_ser, rw_dout, dout);
++}
++
++
++void
++putc(const char c)
++{
++#ifdef CONFIG_ETRAX_DEBUG_PORT0
++ serout(c, regi_ser0);
++#endif
++#ifdef CONFIG_ETRAX_DEBUG_PORT1
++ serout(c, regi_ser1);
++#endif
++#ifdef CONFIG_ETRAX_DEBUG_PORT2
++ serout(c, regi_ser2);
++#endif
++#ifdef CONFIG_ETRAX_DEBUG_PORT3
++ serout(c, regi_ser3);
++#endif
++}
++
++
++void
++puts(const char *s)
++{
++ while (*s)
++ putc(*s++);
++}
++
++void
++putnybble(int n)
++{
++ putc("0123456789abcdef"[n & 15]);
++}
++
++void
++putx(int x)
++{
++ int i;
++
++ puts("0x");
++ for (i = 7; i >= 0; i--)
++ putnybble(x >> 4*i);
++}
++
++void
++putnl()
++{
++ puts("\r\n");
++}
++
++#endif /* CONFIG_ETRAX_DEBUG_PORT_NULL */
++
++void*
++memset(void* s, int c, size_t n)
++{
++ int i;
++ char *ss = (char*)s;
++
++ for (i=0;i<n;i++) ss[i] = c;
++}
++
++void*
++memcpy(void* __dest, __const void* __src,
++ size_t __n)
++{
++ int i;
++ char *d = (char *)__dest, *s = (char *)__src;
++
++ for (i=0;i<__n;i++) d[i] = s[i];
++}
++
++void
++error(const char *x)
++{
++ puts("\r\n\n");
++ puts(x);
++ puts("\r\n\n -- System halted\n");
++
++ while(1); /* Halt */
++}
++
++void
++error2(const char *x, int y, const char *z)
++{
++ puts("\r\n\n");
++ puts(x);
++ putc(':');
++ putx(y);
++ putc(':');
++ puts(z);
++ puts("\r\n\n -- System halted\n");
++
++ while(1); /* Halt */
++}
++
++static inline void
++serial_setup(reg_scope_instances regi_ser)
++{
++ reg_ser_rw_xoff xoff;
++ reg_ser_rw_tr_ctrl tr_ctrl;
++ reg_ser_rw_rec_ctrl rec_ctrl;
++ reg_ser_rw_tr_baud_div tr_baud;
++ reg_ser_rw_rec_baud_div rec_baud;
++
++ /* Turn off XOFF. */
++ xoff = REG_RD(ser, regi_ser, rw_xoff);
++
++ xoff.chr = 0;
++ xoff.automatic = regk_ser_no;
++
++ REG_WR(ser, regi_ser, rw_xoff, xoff);
++
++ /* Set baudrate and stopbits. */
++ tr_ctrl = REG_RD(ser, regi_ser, rw_tr_ctrl);
++ rec_ctrl = REG_RD(ser, regi_ser, rw_rec_ctrl);
++ tr_baud = REG_RD(ser, regi_ser, rw_tr_baud_div);
++ rec_baud = REG_RD(ser, regi_ser, rw_rec_baud_div);
++
++ tr_ctrl.stop_bits = 1; /* 2 stop bits. */
++ tr_ctrl.en = 1; /* enable transmitter */
++ rec_ctrl.en = 1; /* enabler receiver */
++
++ /*
++ * The baudrate setup used to be a bit fishy, but now transmitter and
++ * receiver are both set to the intended baud rate, 115200.
++ * The magic value is 29.493 MHz.
++ */
++ tr_ctrl.base_freq = regk_ser_f29_493;
++ rec_ctrl.base_freq = regk_ser_f29_493;
++ tr_baud.div = (29493000 / 8) / 115200;
++ rec_baud.div = (29493000 / 8) / 115200;
++
++ REG_WR(ser, regi_ser, rw_tr_ctrl, tr_ctrl);
++ REG_WR(ser, regi_ser, rw_tr_baud_div, tr_baud);
++ REG_WR(ser, regi_ser, rw_rec_ctrl, rec_ctrl);
++ REG_WR(ser, regi_ser, rw_rec_baud_div, rec_baud);
++}
++
++void
++serial_init()
++{
++ reg_pinmux_rw_hwprot hwprot;
++
++ hwprot = REG_RD(pinmux, regi_pinmux, rw_hwprot);
++#ifdef CONFIG_ETRAX_DEBUG_PORT0
++ serial_setup(regi_ser0);
++#endif
++#ifdef CONFIG_ETRAX_DEBUG_PORT1
++ hwprot.ser1 = regk_pinmux_yes;
++ serial_setup(regi_ser1);
++#endif
++#ifdef CONFIG_ETRAX_DEBUG_PORT2
++ hwprot.ser2 = regk_pinmux_yes;
++ serial_setup(regi_ser2);
++#endif
++#ifdef CONFIG_ETRAX_DEBUG_PORT3
++ hwprot.ser3 = regk_pinmux_yes;
++ serial_setup(regi_ser3);
++#endif
++ REG_WR(pinmux, regi_pinmux, rw_hwprot, hwprot);
++}
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/lib.h linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/lib.h
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/lib.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/lib.h 2006-11-03 11:35:52.000000000 +0100
+@@ -0,0 +1,56 @@
++/*
++ * lib.c
++ * Small practical functions for boot loader
++ * malloc/free
++ * memset/memcpy
++ * putc/puts/putnybble/putd
++ * writeb/writew/readb/readw
++ * error/error2/BUG
++ * serial_init
++ *
++ * $Id: lib.h,v 1.3 2006/11/03 10:35:52 pkj Exp $
++ *
++ */
++
++#ifndef _LIB_H
++#define _LIB_H
++
++#include <linux/types.h>
++
++/* nice stuff we need without having any library around */
++
++void* memset(void* s, int c, size_t n);
++void* memcpy(void* __dest, __const void* __src,
++ size_t __n);
++
++#define memzero(s, n) memset ((s), 0, (n))
++
++#undef BUG
++#define BUG() error2("BUG in " __FILE__, __LINE__, __FUNCTION__)
++
++void *malloc(int size);
++void free(void *where);
++void error(const char *m);
++void error2(const char *m, int l, const char *f);
++void serial_init(void);
++
++#ifndef CONFIG_ETRAX_DEBUG_PORT_NULL
++void putc(const char);
++void puts(const char *);
++void putnybble(int n);
++void putx(int x);
++void putnl();
++#else
++#define putc(ch)
++#define puts(str)
++#define putnybble(nyb)
++#define putx(x)
++#define putnl()
++#endif /* CONFIG_ETRAX_DEBUG_PORT_NULL */
++
++unsigned char readb(const volatile void *addr);
++unsigned short readw(const volatile void *addr);
++void writeb(unsigned char b, volatile void *addr);
++void writew(unsigned short b, volatile void *addr);
++
++#endif /* _LIB_H */
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/mtd-abi.h linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/mtd-abi.h
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/mtd-abi.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/mtd-abi.h 2006-09-06 11:21:07.000000000 +0200
+@@ -0,0 +1,121 @@
++/*
++ * $Id: mtd-abi.h,v 1.1 2006/09/06 09:21:07 ricardw Exp $
++ *
++ * Portions of MTD ABI definition which are shared by kernel and user space
++ */
++
++#ifndef __MTD_ABI_H__
++#define __MTD_ABI_H__
++
++#ifndef __KERNEL__ /* Urgh. The whole point of splitting this out into
++ separate files was to avoid #ifdef __KERNEL__ */
++#define __user
++#endif
++
++struct erase_info_user {
++ uint32_t start;
++ uint32_t length;
++};
++
++struct mtd_oob_buf {
++ uint32_t start;
++ uint32_t length;
++ unsigned char __user *ptr;
++};
++
++#define MTD_ABSENT 0
++#define MTD_RAM 1
++#define MTD_ROM 2
++#define MTD_NORFLASH 3
++#define MTD_NANDFLASH 4
++#define MTD_PEROM 5
++#define MTD_DATAFLASH 6
++#define MTD_OTHER 14
++#define MTD_UNKNOWN 15
++
++#define MTD_CLEAR_BITS 1 // Bits can be cleared (flash)
++#define MTD_SET_BITS 2 // Bits can be set
++#define MTD_ERASEABLE 4 // Has an erase function
++#define MTD_WRITEB_WRITEABLE 8 // Direct IO is possible
++#define MTD_VOLATILE 16 // Set for RAMs
++#define MTD_XIP 32 // eXecute-In-Place possible
++#define MTD_OOB 64 // Out-of-band data (NAND flash)
++#define MTD_ECC 128 // Device capable of automatic ECC
++#define MTD_NO_VIRTBLOCKS 256 // Virtual blocks not allowed
++#define MTD_PROGRAM_REGIONS 512 // Configurable Programming Regions
++
++// Some common devices / combinations of capabilities
++#define MTD_CAP_ROM 0
++#define MTD_CAP_RAM (MTD_CLEAR_BITS|MTD_SET_BITS|MTD_WRITEB_WRITEABLE)
++#define MTD_CAP_NORFLASH (MTD_CLEAR_BITS|MTD_ERASEABLE)
++#define MTD_CAP_NANDFLASH (MTD_CLEAR_BITS|MTD_ERASEABLE|MTD_OOB)
++#define MTD_WRITEABLE (MTD_CLEAR_BITS|MTD_SET_BITS)
++
++
++// Types of automatic ECC/Checksum available
++#define MTD_ECC_NONE 0 // No automatic ECC available
++#define MTD_ECC_RS_DiskOnChip 1 // Automatic ECC on DiskOnChip
++#define MTD_ECC_SW 2 // SW ECC for Toshiba & Samsung devices
++
++/* ECC byte placement */
++#define MTD_NANDECC_OFF 0 // Switch off ECC (Not recommended)
++#define MTD_NANDECC_PLACE 1 // Use the given placement in the structure (YAFFS1 legacy mode)
++#define MTD_NANDECC_AUTOPLACE 2 // Use the default placement scheme
++#define MTD_NANDECC_PLACEONLY 3 // Use the given placement in the structure (Do not store ecc result on read)
++#define MTD_NANDECC_AUTOPL_USR 4 // Use the given autoplacement scheme rather than using the default
++
++/* OTP mode selection */
++#define MTD_OTP_OFF 0
++#define MTD_OTP_FACTORY 1
++#define MTD_OTP_USER 2
++
++struct mtd_info_user {
++ uint8_t type;
++ uint32_t flags;
++ uint32_t size; // Total size of the MTD
++ uint32_t erasesize;
++ uint32_t oobblock; // Size of OOB blocks (e.g. 512)
++ uint32_t oobsize; // Amount of OOB data per block (e.g. 16)
++ uint32_t ecctype;
++ uint32_t eccsize;
++};
++
++struct region_info_user {
++ uint32_t offset; /* At which this region starts,
++ * from the beginning of the MTD */
++ uint32_t erasesize; /* For this region */
++ uint32_t numblocks; /* Number of blocks in this region */
++ uint32_t regionindex;
++};
++
++struct otp_info {
++ uint32_t start;
++ uint32_t length;
++ uint32_t locked;
++};
++
++#define MEMGETINFO _IOR('M', 1, struct mtd_info_user)
++#define MEMERASE _IOW('M', 2, struct erase_info_user)
++#define MEMWRITEOOB _IOWR('M', 3, struct mtd_oob_buf)
++#define MEMREADOOB _IOWR('M', 4, struct mtd_oob_buf)
++#define MEMLOCK _IOW('M', 5, struct erase_info_user)
++#define MEMUNLOCK _IOW('M', 6, struct erase_info_user)
++#define MEMGETREGIONCOUNT _IOR('M', 7, int)
++#define MEMGETREGIONINFO _IOWR('M', 8, struct region_info_user)
++#define MEMSETOOBSEL _IOW('M', 9, struct nand_oobinfo)
++#define MEMGETOOBSEL _IOR('M', 10, struct nand_oobinfo)
++#define MEMGETBADBLOCK _IOW('M', 11, loff_t)
++#define MEMSETBADBLOCK _IOW('M', 12, loff_t)
++#define OTPSELECT _IOR('M', 13, int)
++#define OTPGETREGIONCOUNT _IOW('M', 14, int)
++#define OTPGETREGIONINFO _IOW('M', 15, struct otp_info)
++#define OTPLOCK _IOR('M', 16, struct otp_info)
++
++struct nand_oobinfo {
++ uint32_t useecc;
++ uint32_t eccbytes;
++ uint32_t oobfree[8][2];
++ uint32_t eccpos[32];
++};
++
++#endif /* __MTD_ABI_H__ */
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/mtd.h linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/mtd.h
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/mtd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/mtd.h 2006-12-14 07:59:24.000000000 +0100
+@@ -0,0 +1,270 @@
++/*
++ * $Id: mtd.h,v 1.5 2006/12/14 06:59:24 ricardw Exp $
++ *
++ * Copyright (C) 1999-2003 David Woodhouse <dwmw2@infradead.org> et al.
++ *
++ * Released under GPL
++ */
++
++#ifndef __MTD_MTD_H__
++#define __MTD_MTD_H__
++
++#ifndef __KERNEL__
++#error This is a kernel header. Perhaps include mtd-user.h instead?
++#endif
++
++/* only include absolutely necessary linux headers which will not change
++ * significantly
++ */
++#include <linux/types.h>
++#include <linux/errno.h>
++
++#if 0
++#include <linux/module.h>
++#include <linux/uio.h>
++#include <linux/notifier.h>
++
++#include <linux/mtd/compatmac.h>
++#include <mtd/mtd-abi.h>
++#endif
++
++#include "mtd-abi.h"
++
++/* local config, we don't want linux/config.h here */
++/* any undef/define pairs here avoid warnings due to linux autoconf includes */
++#undef CONFIG_MTD_PARTITIONS
++#undef CONFIG_MTD_DEBUG
++#undef CONFIG_MTD_NAND_VERIFY_WRITE
++#define CONFIG_MTD_NAND_VERIFY_WRITE
++
++/* our MTD config */
++
++#define NAND_BBT_SUPPORT 0
++#define NAND_WRITE_SUPPORT 0
++#define NAND_ERASE_SUPPORT 0
++#define NAND_MULTICHIP_SUPPORT 0
++#define NAND_HWECC_SUPPORT 0
++#define NAND_KVEC_SUPPORT 0
++
++
++#define MTD_CHAR_MAJOR 90
++#define MTD_BLOCK_MAJOR 31
++#define MAX_MTD_DEVICES 16
++
++#define MTD_ERASE_PENDING 0x01
++#define MTD_ERASING 0x02
++#define MTD_ERASE_SUSPEND 0x04
++#define MTD_ERASE_DONE 0x08
++#define MTD_ERASE_FAILED 0x10
++
++/* If the erase fails, fail_addr might indicate exactly which block failed. If
++ fail_addr = 0xffffffff, the failure was not at the device level or was not
++ specific to any particular block. */
++struct erase_info {
++ struct mtd_info *mtd;
++ u_int32_t addr;
++ u_int32_t len;
++ u_int32_t fail_addr;
++ u_long time;
++ u_long retries;
++ u_int dev;
++ u_int cell;
++ void (*callback) (struct erase_info *self);
++ u_long priv;
++ u_char state;
++ struct erase_info *next;
++};
++
++struct mtd_erase_region_info {
++ u_int32_t offset; /* At which this region starts, from the beginning of the MTD */
++ u_int32_t erasesize; /* For this region */
++ u_int32_t numblocks; /* Number of blocks of erasesize in this region */
++};
++
++struct mtd_info {
++ u_char type;
++ u_int32_t flags;
++ u_int32_t size; // Total size of the MTD
++
++ /* "Major" erase size for the device. Naïve users may take this
++ * to be the only erase size available, or may use the more detailed
++ * information below if they desire
++ */
++ u_int32_t erasesize;
++
++ u_int32_t oobblock; // Size of OOB blocks (e.g. 512)
++ u_int32_t oobsize; // Amount of OOB data per block (e.g. 16)
++ u_int32_t ecctype;
++ u_int32_t eccsize;
++
++ /*
++ * Reuse some of the above unused fields in the case of NOR flash
++ * with configurable programming regions to avoid modifying the
++ * user visible structure layout/size. Only valid when the
++ * MTD_PROGRAM_REGIONS flag is set.
++ * (Maybe we should have an union for those?)
++ */
++#define MTD_PROGREGION_SIZE(mtd) (mtd)->oobblock
++#define MTD_PROGREGION_CTRLMODE_VALID(mtd) (mtd)->oobsize
++#define MTD_PROGREGION_CTRLMODE_INVALID(mtd) (mtd)->ecctype
++
++ // Kernel-only stuff starts here.
++ char *name;
++ int index;
++
++ // oobinfo is a nand_oobinfo structure, which can be set by iotcl (MEMSETOOBINFO)
++ struct nand_oobinfo oobinfo;
++ u_int32_t oobavail; // Number of bytes in OOB area available for fs
++
++ /* Data for variable erase regions. If numeraseregions is zero,
++ * it means that the whole device has erasesize as given above.
++ */
++ int numeraseregions;
++ struct mtd_erase_region_info *eraseregions;
++
++ /* This really shouldn't be here. It can go away in 2.5 */
++ u_int32_t bank_size;
++
++ int (*erase) (struct mtd_info *mtd, struct erase_info *instr);
++
++ /* This stuff for eXecute-In-Place */
++ int (*point) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char **mtdbuf);
++
++ /* We probably shouldn't allow XIP if the unpoint isn't a NULL */
++ void (*unpoint) (struct mtd_info *mtd, u_char * addr, loff_t from, size_t len);
++
++
++ int (*read) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
++ int (*write) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
++
++ int (*read_ecc) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf, u_char *eccbuf, struct nand_oobinfo *oobsel);
++ int (*write_ecc) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf, u_char *eccbuf, struct nand_oobinfo *oobsel);
++
++ int (*read_oob) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
++ int (*write_oob) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
++
++ /*
++ * Methods to access the protection register area, present in some
++ * flash devices. The user data is one time programmable but the
++ * factory data is read only.
++ */
++ int (*get_fact_prot_info) (struct mtd_info *mtd, struct otp_info *buf, size_t len);
++ int (*read_fact_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
++ int (*get_user_prot_info) (struct mtd_info *mtd, struct otp_info *buf, size_t len);
++ int (*read_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
++ int (*write_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
++ int (*lock_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len);
++
++#if NAND_KVEC_SUPPORT
++ /* kvec-based read/write methods. We need these especially for NAND flash,
++ with its limited number of write cycles per erase.
++ NB: The 'count' parameter is the number of _vectors_, each of
++ which contains an (ofs, len) tuple.
++ */
++ int (*readv) (struct mtd_info *mtd, struct kvec *vecs, unsigned long count, loff_t from, size_t *retlen);
++ int (*readv_ecc) (struct mtd_info *mtd, struct kvec *vecs, unsigned long count, loff_t from,
++ size_t *retlen, u_char *eccbuf, struct nand_oobinfo *oobsel);
++ int (*writev) (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, loff_t to, size_t *retlen);
++ int (*writev_ecc) (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, loff_t to,
++ size_t *retlen, u_char *eccbuf, struct nand_oobinfo *oobsel);
++#endif
++
++ /* Sync */
++ void (*sync) (struct mtd_info *mtd);
++
++ /* Chip-supported device locking */
++ int (*lock) (struct mtd_info *mtd, loff_t ofs, size_t len);
++ int (*unlock) (struct mtd_info *mtd, loff_t ofs, size_t len);
++
++ /* Power Management functions */
++ int (*suspend) (struct mtd_info *mtd);
++ void (*resume) (struct mtd_info *mtd);
++
++ /* Bad block management functions */
++ int (*block_isbad) (struct mtd_info *mtd, loff_t ofs);
++ int (*block_markbad) (struct mtd_info *mtd, loff_t ofs);
++
++#if 0 /* don't know what this is for */
++ struct notifier_block reboot_notifier; /* default mode before reboot */
++#endif
++
++ void *priv;
++
++ struct module *owner;
++ int usecount;
++};
++
++#if 0 /* don't need these */
++ /* Kernel-side ioctl definitions */
++
++extern int add_mtd_device(struct mtd_info *mtd);
++extern int del_mtd_device (struct mtd_info *mtd);
++
++extern struct mtd_info *get_mtd_device(struct mtd_info *mtd, int num);
++
++extern void put_mtd_device(struct mtd_info *mtd);
++
++
++struct mtd_notifier {
++ void (*add)(struct mtd_info *mtd);
++ void (*remove)(struct mtd_info *mtd);
++ struct list_head list;
++};
++
++
++extern void register_mtd_user (struct mtd_notifier *new);
++extern int unregister_mtd_user (struct mtd_notifier *old);
++#endif
++
++#if NAND_KVEC_SUPPORT
++int default_mtd_writev(struct mtd_info *mtd, const struct kvec *vecs,
++ unsigned long count, loff_t to, size_t *retlen);
++
++int default_mtd_readv(struct mtd_info *mtd, struct kvec *vecs,
++ unsigned long count, loff_t from, size_t *retlen);
++#endif
++
++#define MTD_ERASE(mtd, args...) (*(mtd->erase))(mtd, args)
++#define MTD_POINT(mtd, a,b,c,d) (*(mtd->point))(mtd, a,b,c, (u_char **)(d))
++#define MTD_UNPOINT(mtd, arg) (*(mtd->unpoint))(mtd, (u_char *)arg)
++#define MTD_READ(mtd, args...) (*(mtd->read))(mtd, args)
++#define MTD_WRITE(mtd, args...) (*(mtd->write))(mtd, args)
++#define MTD_READV(mtd, args...) (*(mtd->readv))(mtd, args)
++#define MTD_WRITEV(mtd, args...) (*(mtd->writev))(mtd, args)
++#define MTD_READECC(mtd, args...) (*(mtd->read_ecc))(mtd, args)
++#define MTD_WRITEECC(mtd, args...) (*(mtd->write_ecc))(mtd, args)
++#define MTD_READOOB(mtd, args...) (*(mtd->read_oob))(mtd, args)
++#define MTD_WRITEOOB(mtd, args...) (*(mtd->write_oob))(mtd, args)
++#define MTD_SYNC(mtd) do { if (mtd->sync) (*(mtd->sync))(mtd); } while (0)
++
++
++#ifdef CONFIG_MTD_PARTITIONS
++void mtd_erase_callback(struct erase_info *instr);
++#else
++static inline void mtd_erase_callback(struct erase_info *instr)
++{
++ if (instr->callback)
++ instr->callback(instr);
++}
++#endif
++
++/*
++ * Debugging macro and defines
++ */
++#define MTD_DEBUG_LEVEL0 (0) /* Quiet */
++#define MTD_DEBUG_LEVEL1 (1) /* Audible */
++#define MTD_DEBUG_LEVEL2 (2) /* Loud */
++#define MTD_DEBUG_LEVEL3 (3) /* Noisy */
++
++#ifdef CONFIG_MTD_DEBUG
++#define DEBUG(n, args...) \
++ do { \
++ if (n <= CONFIG_MTD_DEBUG_VERBOSE) \
++ printk(KERN_INFO args); \
++ } while(0)
++#else /* CONFIG_MTD_DEBUG */
++#define DEBUG(n, args...) do { } while(0)
++
++#endif /* CONFIG_MTD_DEBUG */
++
++#endif /* __MTD_MTD_H__ */
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/nand.h linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/nand.h
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/nand.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/nand.h 2006-11-03 11:35:52.000000000 +0100
+@@ -0,0 +1,521 @@
++/*
++ * linux/include/linux/mtd/nand.h
++ *
++ * Copyright (c) 2000 David Woodhouse <dwmw2@mvhi.com>
++ * Steven J. Hill <sjhill@realitydiluted.com>
++ * Thomas Gleixner <tglx@linutronix.de>
++ *
++ * $Id: nand.h,v 1.4 2006/11/03 10:35:52 pkj Exp $
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ * Info:
++ * Contains standard defines and IDs for NAND flash devices
++ *
++ * Changelog:
++ * 01-31-2000 DMW Created
++ * 09-18-2000 SJH Moved structure out of the Disk-On-Chip drivers
++ * so it can be used by other NAND flash device
++ * drivers. I also changed the copyright since none
++ * of the original contents of this file are specific
++ * to DoC devices. David can whack me with a baseball
++ * bat later if I did something naughty.
++ * 10-11-2000 SJH Added private NAND flash structure for driver
++ * 10-24-2000 SJH Added prototype for 'nand_scan' function
++ * 10-29-2001 TG changed nand_chip structure to support
++ * hardwarespecific function for accessing control lines
++ * 02-21-2002 TG added support for different read/write adress and
++ * ready/busy line access function
++ * 02-26-2002 TG added chip_delay to nand_chip structure to optimize
++ * command delay times for different chips
++ * 04-28-2002 TG OOB config defines moved from nand.c to avoid duplicate
++ * defines in jffs2/wbuf.c
++ * 08-07-2002 TG forced bad block location to byte 5 of OOB, even if
++ * CONFIG_MTD_NAND_ECC_JFFS2 is not set
++ * 08-10-2002 TG extensions to nand_chip structure to support HW-ECC
++ *
++ * 08-29-2002 tglx nand_chip structure: data_poi for selecting
++ * internal / fs-driver buffer
++ * support for 6byte/512byte hardware ECC
++ * read_ecc, write_ecc extended for different oob-layout
++ * oob layout selections: NAND_NONE_OOB, NAND_JFFS2_OOB,
++ * NAND_YAFFS_OOB
++ * 11-25-2002 tglx Added Manufacturer code FUJITSU, NATIONAL
++ * Split manufacturer and device ID structures
++ *
++ * 02-08-2004 tglx added option field to nand structure for chip anomalities
++ * 05-25-2004 tglx added bad block table support, ST-MICRO manufacturer id
++ * update of nand_chip structure description
++ * 01-17-2005 dmarlin added extended commands for AG-AND device and added option
++ * for BBT_AUTO_REFRESH.
++ * 01-20-2005 dmarlin added optional pointer to hardware specific callback for
++ * extra error status checks.
++ */
++#ifndef __LINUX_MTD_NAND_H
++#define __LINUX_MTD_NAND_H
++
++#if 0 /* avoid these as much as possible */
++#include <linux/wait.h>
++#include <linux/spinlock.h>
++#include <linux/mtd/mtd.h>
++#endif
++
++#include "mtd.h" /* local */
++
++#include <linux/kernel.h> /* we do need this though ... */
++
++struct mtd_info;
++/* Scan and identify a NAND device */
++extern int nand_scan (struct mtd_info *mtd, int max_chips);
++/* Free resources held by the NAND device */
++extern void nand_release (struct mtd_info *mtd);
++
++/* Read raw data from the device without ECC */
++extern int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_t len, size_t ooblen);
++
++
++/* The maximum number of NAND chips in an array */
++#define NAND_MAX_CHIPS 8
++
++/* This constant declares the max. oobsize / page, which
++ * is supported now. If you add a chip with bigger oobsize/page
++ * adjust this accordingly.
++ */
++#define NAND_MAX_OOBSIZE 64
++
++/*
++ * Constants for hardware specific CLE/ALE/NCE function
++*/
++/* Select the chip by setting nCE to low */
++#define NAND_CTL_SETNCE 1
++/* Deselect the chip by setting nCE to high */
++#define NAND_CTL_CLRNCE 2
++/* Select the command latch by setting CLE to high */
++#define NAND_CTL_SETCLE 3
++/* Deselect the command latch by setting CLE to low */
++#define NAND_CTL_CLRCLE 4
++/* Select the address latch by setting ALE to high */
++#define NAND_CTL_SETALE 5
++/* Deselect the address latch by setting ALE to low */
++#define NAND_CTL_CLRALE 6
++/* Set write protection by setting WP to high. Not used! */
++#define NAND_CTL_SETWP 7
++/* Clear write protection by setting WP to low. Not used! */
++#define NAND_CTL_CLRWP 8
++
++/*
++ * Standard NAND flash commands
++ */
++#define NAND_CMD_READ0 0
++#define NAND_CMD_READ1 1
++#define NAND_CMD_PAGEPROG 0x10
++#define NAND_CMD_READOOB 0x50
++#define NAND_CMD_ERASE1 0x60
++#define NAND_CMD_STATUS 0x70
++#define NAND_CMD_STATUS_MULTI 0x71
++#define NAND_CMD_SEQIN 0x80
++#define NAND_CMD_READID 0x90
++#define NAND_CMD_ERASE2 0xd0
++#define NAND_CMD_RESET 0xff
++
++/* Extended commands for large page devices */
++#define NAND_CMD_READSTART 0x30
++#define NAND_CMD_CACHEDPROG 0x15
++
++/* Extended commands for AG-AND device */
++/*
++ * Note: the command for NAND_CMD_DEPLETE1 is really 0x00 but
++ * there is no way to distinguish that from NAND_CMD_READ0
++ * until the remaining sequence of commands has been completed
++ * so add a high order bit and mask it off in the command.
++ */
++#define NAND_CMD_DEPLETE1 0x100
++#define NAND_CMD_DEPLETE2 0x38
++#define NAND_CMD_STATUS_MULTI 0x71
++#define NAND_CMD_STATUS_ERROR 0x72
++/* multi-bank error status (banks 0-3) */
++#define NAND_CMD_STATUS_ERROR0 0x73
++#define NAND_CMD_STATUS_ERROR1 0x74
++#define NAND_CMD_STATUS_ERROR2 0x75
++#define NAND_CMD_STATUS_ERROR3 0x76
++#define NAND_CMD_STATUS_RESET 0x7f
++#define NAND_CMD_STATUS_CLEAR 0xff
++
++/* Status bits */
++#define NAND_STATUS_FAIL 0x01
++#define NAND_STATUS_FAIL_N1 0x02
++#define NAND_STATUS_TRUE_READY 0x20
++#define NAND_STATUS_READY 0x40
++#define NAND_STATUS_WP 0x80
++
++/*
++ * Constants for ECC_MODES
++ */
++
++/* No ECC. Usage is not recommended ! */
++#define NAND_ECC_NONE 0
++/* Software ECC 3 byte ECC per 256 Byte data */
++#define NAND_ECC_SOFT 1
++/* Hardware ECC 3 byte ECC per 256 Byte data */
++#define NAND_ECC_HW3_256 2
++/* Hardware ECC 3 byte ECC per 512 Byte data */
++#define NAND_ECC_HW3_512 3
++/* Hardware ECC 3 byte ECC per 512 Byte data */
++#define NAND_ECC_HW6_512 4
++/* Hardware ECC 8 byte ECC per 512 Byte data */
++#define NAND_ECC_HW8_512 6
++/* Hardware ECC 12 byte ECC per 2048 Byte data */
++#define NAND_ECC_HW12_2048 7
++
++/*
++ * Constants for Hardware ECC
++ */
++/* Reset Hardware ECC for read */
++#define NAND_ECC_READ 0
++/* Reset Hardware ECC for write */
++#define NAND_ECC_WRITE 1
++/* Enable Hardware ECC before syndrom is read back from flash */
++#define NAND_ECC_READSYN 2
++
++/* Bit mask for flags passed to do_nand_read_ecc */
++#define NAND_GET_DEVICE 0x80
++
++
++/* Option constants for bizarre disfunctionality and real
++* features
++*/
++/* Chip can not auto increment pages */
++#define NAND_NO_AUTOINCR 0x00000001
++/* Buswitdh is 16 bit */
++#define NAND_BUSWIDTH_16 0x00000002
++/* Device supports partial programming without padding */
++#define NAND_NO_PADDING 0x00000004
++/* Chip has cache program function */
++#define NAND_CACHEPRG 0x00000008
++/* Chip has copy back function */
++#define NAND_COPYBACK 0x00000010
++/* AND Chip which has 4 banks and a confusing page / block
++ * assignment. See Renesas datasheet for further information */
++#define NAND_IS_AND 0x00000020
++/* Chip has a array of 4 pages which can be read without
++ * additional ready /busy waits */
++#define NAND_4PAGE_ARRAY 0x00000040
++/* Chip requires that BBT is periodically rewritten to prevent
++ * bits from adjacent blocks from 'leaking' in altering data.
++ * This happens with the Renesas AG-AND chips, possibly others. */
++#define BBT_AUTO_REFRESH 0x00000080
++
++/* Options valid for Samsung large page devices */
++#define NAND_SAMSUNG_LP_OPTIONS \
++ (NAND_NO_PADDING | NAND_CACHEPRG | NAND_COPYBACK)
++
++/* Macros to identify the above */
++#define NAND_CANAUTOINCR(chip) (!(chip->options & NAND_NO_AUTOINCR))
++#define NAND_MUST_PAD(chip) (!(chip->options & NAND_NO_PADDING))
++#define NAND_HAS_CACHEPROG(chip) ((chip->options & NAND_CACHEPRG))
++#define NAND_HAS_COPYBACK(chip) ((chip->options & NAND_COPYBACK))
++
++/* Mask to zero out the chip options, which come from the id table */
++#define NAND_CHIPOPTIONS_MSK (0x0000ffff & ~NAND_NO_AUTOINCR)
++
++/* Non chip related options */
++/* Use a flash based bad block table. This option is passed to the
++ * default bad block table function. */
++#define NAND_USE_FLASH_BBT 0x00010000
++/* The hw ecc generator provides a syndrome instead a ecc value on read
++ * This can only work if we have the ecc bytes directly behind the
++ * data bytes. Applies for DOC and AG-AND Renesas HW Reed Solomon generators */
++#define NAND_HWECC_SYNDROME 0x00020000
++/* This option skips the bbt scan during initialization. */
++#define NAND_SKIP_BBTSCAN 0x00040000
++
++/* Options set by nand scan */
++/* Nand scan has allocated oob_buf */
++#define NAND_OOBBUF_ALLOC 0x40000000
++/* Nand scan has allocated data_buf */
++#define NAND_DATABUF_ALLOC 0x80000000
++
++
++/*
++ * nand_state_t - chip states
++ * Enumeration for NAND flash chip state
++ */
++typedef enum {
++ FL_READY,
++ FL_READING,
++ FL_WRITING,
++ FL_ERASING,
++ FL_SYNCING,
++ FL_CACHEDPRG,
++ FL_PM_SUSPENDED,
++} nand_state_t;
++
++/* Keep gcc happy */
++struct nand_chip;
++
++/**
++ * struct nand_hw_control - Control structure for hardware controller (e.g ECC generator) shared among independend devices
++ * @lock: protection lock
++ * @active: the mtd device which holds the controller currently
++ * @wq: wait queue to sleep on if a NAND operation is in progress
++ * used instead of the per chip wait queue when a hw controller is available
++ */
++#if NAND_HWECC_SUPPORT
++struct nand_hw_control {
++ spinlock_t lock;
++ struct nand_chip *active;
++ wait_queue_head_t wq;
++};
++#endif
++
++/**
++ * struct nand_chip - NAND Private Flash Chip Data
++ * @IO_ADDR_R: [BOARDSPECIFIC] address to read the 8 I/O lines of the flash device
++ * @IO_ADDR_W: [BOARDSPECIFIC] address to write the 8 I/O lines of the flash device
++ * @read_byte: [REPLACEABLE] read one byte from the chip
++ * @write_byte: [REPLACEABLE] write one byte to the chip
++ * @read_word: [REPLACEABLE] read one word from the chip
++ * @write_word: [REPLACEABLE] write one word to the chip
++ * @write_buf: [REPLACEABLE] write data from the buffer to the chip
++ * @read_buf: [REPLACEABLE] read data from the chip into the buffer
++ * @verify_buf: [REPLACEABLE] verify buffer contents against the chip data
++ * @select_chip: [REPLACEABLE] select chip nr
++ * @block_bad: [REPLACEABLE] check, if the block is bad
++ * @block_markbad: [REPLACEABLE] mark the block bad
++ * @hwcontrol: [BOARDSPECIFIC] hardwarespecific function for accesing control-lines
++ * @dev_ready: [BOARDSPECIFIC] hardwarespecific function for accesing device ready/busy line
++ * If set to NULL no access to ready/busy is available and the ready/busy information
++ * is read from the chip status register
++ * @cmdfunc: [REPLACEABLE] hardwarespecific function for writing commands to the chip
++ * @waitfunc: [REPLACEABLE] hardwarespecific function for wait on ready
++ * @calculate_ecc: [REPLACEABLE] function for ecc calculation or readback from ecc hardware
++ * @correct_data: [REPLACEABLE] function for ecc correction, matching to ecc generator (sw/hw)
++ * @enable_hwecc: [BOARDSPECIFIC] function to enable (reset) hardware ecc generator. Must only
++ * be provided if a hardware ECC is available
++ * @erase_cmd: [INTERN] erase command write function, selectable due to AND support
++ * @scan_bbt: [REPLACEABLE] function to scan bad block table
++ * @eccmode: [BOARDSPECIFIC] mode of ecc, see defines
++ * @eccsize: [INTERN] databytes used per ecc-calculation
++ * @eccbytes: [INTERN] number of ecc bytes per ecc-calculation step
++ * @eccsteps: [INTERN] number of ecc calculation steps per page
++ * @chip_delay: [BOARDSPECIFIC] chip dependent delay for transfering data from array to read regs (tR)
++ * @chip_lock: [INTERN] spinlock used to protect access to this structure and the chip
++ * @wq: [INTERN] wait queue to sleep on if a NAND operation is in progress
++ * @state: [INTERN] the current state of the NAND device
++ * @page_shift: [INTERN] number of address bits in a page (column address bits)
++ * @phys_erase_shift: [INTERN] number of address bits in a physical eraseblock
++ * @bbt_erase_shift: [INTERN] number of address bits in a bbt entry
++ * @chip_shift: [INTERN] number of address bits in one chip
++ * @data_buf: [INTERN] internal buffer for one page + oob
++ * @oob_buf: [INTERN] oob buffer for one eraseblock
++ * @oobdirty: [INTERN] indicates that oob_buf must be reinitialized
++ * @data_poi: [INTERN] pointer to a data buffer
++ * @options: [BOARDSPECIFIC] various chip options. They can partly be set to inform nand_scan about
++ * special functionality. See the defines for further explanation
++ * @badblockpos: [INTERN] position of the bad block marker in the oob area
++ * @numchips: [INTERN] number of physical chips
++ * @chipsize: [INTERN] the size of one chip for multichip arrays
++ * @pagemask: [INTERN] page number mask = number of (pages / chip) - 1
++ * @pagebuf: [INTERN] holds the pagenumber which is currently in data_buf
++ * @autooob: [REPLACEABLE] the default (auto)placement scheme
++ * @bbt: [INTERN] bad block table pointer
++ * @bbt_td: [REPLACEABLE] bad block table descriptor for flash lookup
++ * @bbt_md: [REPLACEABLE] bad block table mirror descriptor
++ * @badblock_pattern: [REPLACEABLE] bad block scan pattern used for initial bad block scan
++ * @controller: [OPTIONAL] a pointer to a hardware controller structure which is shared among multiple independend devices
++ * @priv: [OPTIONAL] pointer to private chip date
++ * @errstat: [OPTIONAL] hardware specific function to perform additional error status checks
++ * (determine if errors are correctable)
++ */
++
++struct nand_chip {
++ void __iomem *IO_ADDR_R;
++ void __iomem *IO_ADDR_W;
++
++ u_char (*read_byte)(struct mtd_info *mtd);
++ void (*write_byte)(struct mtd_info *mtd, u_char byte);
++ u16 (*read_word)(struct mtd_info *mtd);
++ void (*write_word)(struct mtd_info *mtd, u16 word);
++
++ void (*write_buf)(struct mtd_info *mtd, const u_char *buf, int len);
++ void (*read_buf)(struct mtd_info *mtd, u_char *buf, int len);
++ int (*verify_buf)(struct mtd_info *mtd, const u_char *buf, int len);
++ void (*select_chip)(struct mtd_info *mtd, int chip);
++ int (*block_bad)(struct mtd_info *mtd, loff_t ofs, int getchip);
++ int (*block_markbad)(struct mtd_info *mtd, loff_t ofs);
++ void (*hwcontrol)(struct mtd_info *mtd, int cmd);
++ int (*dev_ready)(struct mtd_info *mtd);
++ void (*cmdfunc)(struct mtd_info *mtd, unsigned command, int column, int page_addr);
++ int (*waitfunc)(struct mtd_info *mtd, struct nand_chip *this, int state);
++ int (*calculate_ecc)(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code);
++ int (*correct_data)(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc);
++ void (*enable_hwecc)(struct mtd_info *mtd, int mode);
++ void (*erase_cmd)(struct mtd_info *mtd, int page);
++ int (*scan_bbt)(struct mtd_info *mtd);
++ int eccmode;
++ int eccsize;
++ int eccbytes;
++ int eccsteps;
++ int chip_delay;
++#if 0 /* no spinlocks or wait queues in boot loader */
++ spinlock_t chip_lock;
++ wait_queue_head_t wq;
++#endif
++ nand_state_t state;
++ int page_shift;
++ int phys_erase_shift;
++ int bbt_erase_shift;
++ int chip_shift;
++ u_char *data_buf;
++ u_char *oob_buf;
++ int oobdirty;
++ u_char *data_poi;
++ unsigned int options;
++ int badblockpos;
++ int numchips;
++ unsigned long chipsize;
++ int pagemask;
++ int pagebuf;
++ struct nand_oobinfo *autooob;
++ uint8_t *bbt;
++ struct nand_bbt_descr *bbt_td;
++ struct nand_bbt_descr *bbt_md;
++ struct nand_bbt_descr *badblock_pattern;
++ struct nand_hw_control *controller;
++ void *priv;
++ int (*errstat)(struct mtd_info *mtd, struct nand_chip *this, int state, int status, int page);
++};
++
++/*
++ * NAND Flash Manufacturer ID Codes
++ */
++#define NAND_MFR_TOSHIBA 0x98
++#define NAND_MFR_SAMSUNG 0xec
++#define NAND_MFR_FUJITSU 0x04
++#define NAND_MFR_NATIONAL 0x8f
++#define NAND_MFR_RENESAS 0x07
++#define NAND_MFR_STMICRO 0x20
++#define NAND_MFR_HYNIX 0xad
++
++/**
++ * struct nand_flash_dev - NAND Flash Device ID Structure
++ *
++ * @name: Identify the device type
++ * @id: device ID code
++ * @pagesize: Pagesize in bytes. Either 256 or 512 or 0
++ * If the pagesize is 0, then the real pagesize
++ * and the eraseize are determined from the
++ * extended id bytes in the chip
++ * @erasesize: Size of an erase block in the flash device.
++ * @chipsize: Total chipsize in Mega Bytes
++ * @options: Bitfield to store chip relevant options
++ */
++struct nand_flash_dev {
++ char *name;
++ int id;
++ unsigned long pagesize;
++ unsigned long chipsize;
++ unsigned long erasesize;
++ unsigned long options;
++};
++
++/**
++ * struct nand_manufacturers - NAND Flash Manufacturer ID Structure
++ * @name: Manufacturer name
++ * @id: manufacturer ID code of device.
++*/
++struct nand_manufacturers {
++ int id;
++ char * name;
++};
++
++extern struct nand_flash_dev nand_flash_ids[];
++extern struct nand_manufacturers nand_manuf_ids[];
++
++/**
++ * struct nand_bbt_descr - bad block table descriptor
++ * @options: options for this descriptor
++ * @pages: the page(s) where we find the bbt, used with option BBT_ABSPAGE
++ * when bbt is searched, then we store the found bbts pages here.
++ * Its an array and supports up to 8 chips now
++ * @offs: offset of the pattern in the oob area of the page
++ * @veroffs: offset of the bbt version counter in the oob are of the page
++ * @version: version read from the bbt page during scan
++ * @len: length of the pattern, if 0 no pattern check is performed
++ * @maxblocks: maximum number of blocks to search for a bbt. This number of
++ * blocks is reserved at the end of the device where the tables are
++ * written.
++ * @reserved_block_code: if non-0, this pattern denotes a reserved (rather than
++ * bad) block in the stored bbt
++ * @pattern: pattern to identify bad block table or factory marked good /
++ * bad blocks, can be NULL, if len = 0
++ *
++ * Descriptor for the bad block table marker and the descriptor for the
++ * pattern which identifies good and bad blocks. The assumption is made
++ * that the pattern and the version count are always located in the oob area
++ * of the first block.
++ */
++struct nand_bbt_descr {
++ int options;
++ int pages[NAND_MAX_CHIPS];
++ int offs;
++ int veroffs;
++ uint8_t version[NAND_MAX_CHIPS];
++ int len;
++ int maxblocks;
++ int reserved_block_code;
++ uint8_t *pattern;
++};
++
++/* Options for the bad block table descriptors */
++
++/* The number of bits used per block in the bbt on the device */
++#define NAND_BBT_NRBITS_MSK 0x0000000F
++#define NAND_BBT_1BIT 0x00000001
++#define NAND_BBT_2BIT 0x00000002
++#define NAND_BBT_4BIT 0x00000004
++#define NAND_BBT_8BIT 0x00000008
++/* The bad block table is in the last good block of the device */
++#define NAND_BBT_LASTBLOCK 0x00000010
++/* The bbt is at the given page, else we must scan for the bbt */
++#define NAND_BBT_ABSPAGE 0x00000020
++/* The bbt is at the given page, else we must scan for the bbt */
++#define NAND_BBT_SEARCH 0x00000040
++/* bbt is stored per chip on multichip devices */
++#define NAND_BBT_PERCHIP 0x00000080
++/* bbt has a version counter at offset veroffs */
++#define NAND_BBT_VERSION 0x00000100
++/* Create a bbt if none axists */
++#define NAND_BBT_CREATE 0x00000200
++/* Search good / bad pattern through all pages of a block */
++#define NAND_BBT_SCANALLPAGES 0x00000400
++/* Scan block empty during good / bad block scan */
++#define NAND_BBT_SCANEMPTY 0x00000800
++/* Write bbt if neccecary */
++#define NAND_BBT_WRITE 0x00001000
++/* Read and write back block contents when writing bbt */
++#define NAND_BBT_SAVECONTENT 0x00002000
++/* Search good / bad pattern on the first and the second page */
++#define NAND_BBT_SCAN2NDPAGE 0x00004000
++
++/* The maximum number of blocks to scan for a bbt */
++#define NAND_BBT_SCAN_MAXBLOCKS 4
++
++extern int nand_scan_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd);
++extern int nand_update_bbt (struct mtd_info *mtd, loff_t offs);
++extern int nand_default_bbt (struct mtd_info *mtd);
++extern int nand_isbad_bbt (struct mtd_info *mtd, loff_t offs, int allowbbt);
++extern int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbbt);
++extern int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
++ size_t * retlen, u_char * buf, u_char * oob_buf,
++ struct nand_oobinfo *oobsel, int flags);
++
++/*
++* Constants for oob configuration
++*/
++#define NAND_SMALL_BADBLOCK_POS 5
++#define NAND_LARGE_BADBLOCK_POS 0
++
++#endif /* __LINUX_MTD_NAND_H */
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/nand_base.c linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/nand_base.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/nand_base.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/nand_base.c 2006-11-10 09:55:58.000000000 +0100
+@@ -0,0 +1,2910 @@
++/*
++ * Snitched from drivers/mtd/nand_base.c
++ * Modified to run outside Linux.
++ * #if 0'd to remove non-essential functionality
++ *
++ * Overview:
++ * This is the generic MTD driver for NAND flash devices. It should be
++ * capable of working with almost all NAND chips currently available.
++ * Basic support for AG-AND chips is provided.
++ *
++ * Additional technical information is available on
++ * http://www.linux-mtd.infradead.org/tech/nand.html
++ *
++ * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
++ * 2002 Thomas Gleixner (tglx@linutronix.de)
++ *
++ * 02-08-2004 tglx: support for strange chips, which cannot auto increment
++ * pages on read / read_oob
++ *
++ * 03-17-2004 tglx: Check ready before auto increment check. Simon Bayes
++ * pointed this out, as he marked an auto increment capable chip
++ * as NOAUTOINCR in the board driver.
++ * Make reads over block boundaries work too
++ *
++ * 04-14-2004 tglx: first working version for 2k page size chips
++ *
++ * 05-19-2004 tglx: Basic support for Renesas AG-AND chips
++ *
++ * 09-24-2004 tglx: add support for hardware controllers (e.g. ECC) shared
++ * among multiple independend devices. Suggestions and initial patch
++ * from Ben Dooks <ben-mtd@fluff.org>
++ *
++ * 12-05-2004 dmarlin: add workaround for Renesas AG-AND chips "disturb" issue.
++ * Basically, any block not rewritten may lose data when surrounding blocks
++ * are rewritten many times. JFFS2 ensures this doesn't happen for blocks
++ * it uses, but the Bad Block Table(s) may not be rewritten. To ensure they
++ * do not lose data, force them to be rewritten when some of the surrounding
++ * blocks are erased. Rather than tracking a specific nearby block (which
++ * could itself go bad), use a page address 'mask' to select several blocks
++ * in the same area, and rewrite the BBT when any of them are erased.
++ *
++ * 01-03-2005 dmarlin: added support for the device recovery command sequence for Renesas
++ * AG-AND chips. If there was a sudden loss of power during an erase operation,
++ * a "device recovery" operation must be performed when power is restored
++ * to ensure correct operation.
++ *
++ * 01-20-2005 dmarlin: added support for optional hardware specific callback routine to
++ * perform extra error status checks on erase and write failures. This required
++ * adding a wrapper function for nand_read_ecc.
++ *
++ * 08-20-2005 vwool: suspend/resume added
++ *
++ * Credits:
++ * David Woodhouse for adding multichip support
++ *
++ * Aleph One Ltd. and Toby Churchill Ltd. for supporting the
++ * rework for 2K page size chips
++ *
++ * TODO:
++ * Enable cached programming for 2k page size chips
++ * Check, if mtd->ecctype should be set to MTD_ECC_HW
++ * if we have HW ecc support.
++ * The AG-AND chips have nice features for speed improvement,
++ * which are not supported yet. Read / program 4 pages in one go.
++ *
++ * $Id: nand_base.c,v 1.11 2006/11/10 08:55:58 ricardw Exp $
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ */
++
++#include <linux/types.h>
++#include <linux/delay.h>
++#include <linux/errno.h>
++#if 0
++#include <linux/sched.h>
++#include <linux/slab.h>
++#endif
++
++#include "mtd.h"
++#include "nand.h"
++#include "nand_ecc.h"
++
++#if 0
++#include <linux/mtd/compatmac.h>
++#include <linux/interrupt.h>
++#include <linux/bitops.h>
++#include <asm/io.h>
++#endif
++
++#ifdef CONFIG_MTD_PARTITIONS
++#include <linux/mtd/partitions.h>
++
++#endif
++
++#include "lib.h"
++
++#define GPIO_SYNC 0
++
++#undef DEBUG /* from mtd.h */
++#define DEBUG(n, args...) do { } while(0)
++
++#define D(x)
++
++/* Define default oob placement schemes for large and small page devices */
++static struct nand_oobinfo nand_oob_8 = {
++ .useecc = MTD_NANDECC_AUTOPLACE,
++ .eccbytes = 3,
++ .eccpos = {0, 1, 2},
++ .oobfree = { {3, 2}, {6, 2} }
++};
++
++static struct nand_oobinfo nand_oob_16 = {
++ .useecc = MTD_NANDECC_AUTOPLACE,
++ .eccbytes = 6,
++ .eccpos = {0, 1, 2, 3, 6, 7},
++ .oobfree = { {8, 8} }
++};
++
++static struct nand_oobinfo nand_oob_64 = {
++ .useecc = MTD_NANDECC_AUTOPLACE,
++ .eccbytes = 24,
++ .eccpos = {
++ 40, 41, 42, 43, 44, 45, 46, 47,
++ 48, 49, 50, 51, 52, 53, 54, 55,
++ 56, 57, 58, 59, 60, 61, 62, 63},
++ .oobfree = { {2, 38} }
++};
++
++/* This is used for padding purposes in nand_write_oob */
++#if NAND_WRITE_SUPPORT
++static u_char ffchars[] = {
++ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
++ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
++ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
++ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
++ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
++ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
++ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
++ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
++};
++#endif
++
++/*
++ * NAND low-level MTD interface functions
++ */
++static void nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len);
++static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len);
++static int nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len);
++
++static int nand_read (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf);
++static int nand_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
++ size_t * retlen, u_char * buf, u_char * eccbuf, struct nand_oobinfo *oobsel);
++static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf);
++static int nand_write (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char * buf);
++static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
++ size_t * retlen, const u_char * buf, u_char * eccbuf, struct nand_oobinfo *oobsel);
++static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char *buf);
++#if NAND_KVEC_SUPPORT
++static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs,
++ unsigned long count, loff_t to, size_t * retlen);
++static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs,
++ unsigned long count, loff_t to, size_t * retlen, u_char *eccbuf, struct nand_oobinfo *oobsel);
++#endif
++static int nand_erase (struct mtd_info *mtd, struct erase_info *instr);
++static void nand_sync (struct mtd_info *mtd);
++
++/* Some internal functions */
++static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int page, u_char *oob_buf,
++ struct nand_oobinfo *oobsel, int mode);
++#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
++static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int page, int numpages,
++ u_char *oob_buf, struct nand_oobinfo *oobsel, int chipnr, int oobmode);
++#else
++#define nand_verify_pages(...) (0)
++#endif
++
++static int nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int new_state);
++
++/**
++ * nand_release_device - [GENERIC] release chip
++ * @mtd: MTD device structure
++ *
++ * Deselect, release chip lock and wake up anyone waiting on the device
++ */
++static void nand_release_device (struct mtd_info *mtd)
++{
++ struct nand_chip *this = mtd->priv;
++
++ /* De-select the NAND device */
++ this->select_chip(mtd, -1);
++#if 0
++
++ if (this->controller) {
++ /* Release the controller and the chip */
++ spin_lock(&this->controller->lock);
++ this->controller->active = NULL;
++ this->state = FL_READY;
++ wake_up(&this->controller->wq);
++ spin_unlock(&this->controller->lock);
++ } else {
++ /* Release the chip */
++ spin_lock(&this->chip_lock);
++ this->state = FL_READY;
++ wake_up(&this->wq);
++ spin_unlock(&this->chip_lock);
++ }
++#endif
++}
++
++/**
++ * nand_read_byte - [DEFAULT] read one byte from the chip
++ * @mtd: MTD device structure
++ *
++ * Default read function for 8bit buswith
++ */
++static u_char nand_read_byte(struct mtd_info *mtd)
++{
++ struct nand_chip *this = mtd->priv;
++ return readb(this->IO_ADDR_R);
++}
++
++/**
++ * nand_write_byte - [DEFAULT] write one byte to the chip
++ * @mtd: MTD device structure
++ * @byte: pointer to data byte to write
++ *
++ * Default write function for 8it buswith
++ */
++static void nand_write_byte(struct mtd_info *mtd, u_char byte)
++{
++ struct nand_chip *this = mtd->priv;
++ writeb(byte, this->IO_ADDR_W);
++
++#if GPIO_SYNC
++ /* Bus sync: Read from address we just wrote.
++ * This generates no signal to the NAND flash, since only chip
++ * select lines are pulled out to the chip, and read is not
++ * gated with chip select for the write area.
++ * Turns out this is (probably) the wrong way to do it; the
++ * right way is to set up suitable wait states in the kernel
++ * config (CONFIG_ETRAX_MEM_GRP3_CONFIG).
++ */
++ (void) readb(this->IO_ADDR_W); /* that's right, IO_ADDR_W */
++#endif
++}
++
++/**
++ * nand_read_byte16 - [DEFAULT] read one byte endianess aware from the chip
++ * @mtd: MTD device structure
++ *
++ * Default read function for 16bit buswith with
++ * endianess conversion
++ */
++static u_char nand_read_byte16(struct mtd_info *mtd)
++{
++ struct nand_chip *this = mtd->priv;
++ return (u_char) cpu_to_le16(readw(this->IO_ADDR_R));
++}
++
++/**
++ * nand_write_byte16 - [DEFAULT] write one byte endianess aware to the chip
++ * @mtd: MTD device structure
++ * @byte: pointer to data byte to write
++ *
++ * Default write function for 16bit buswith with
++ * endianess conversion
++ */
++static void nand_write_byte16(struct mtd_info *mtd, u_char byte)
++{
++ struct nand_chip *this = mtd->priv;
++ writew(le16_to_cpu((u16) byte), this->IO_ADDR_W);
++}
++
++/**
++ * nand_read_word - [DEFAULT] read one word from the chip
++ * @mtd: MTD device structure
++ *
++ * Default read function for 16bit buswith without
++ * endianess conversion
++ */
++static u16 nand_read_word(struct mtd_info *mtd)
++{
++ struct nand_chip *this = mtd->priv;
++ return readw(this->IO_ADDR_R);
++}
++
++/**
++ * nand_write_word - [DEFAULT] write one word to the chip
++ * @mtd: MTD device structure
++ * @word: data word to write
++ *
++ * Default write function for 16bit buswith without
++ * endianess conversion
++ */
++static void nand_write_word(struct mtd_info *mtd, u16 word)
++{
++ struct nand_chip *this = mtd->priv;
++ writew(word, this->IO_ADDR_W);
++}
++
++/**
++ * nand_select_chip - [DEFAULT] control CE line
++ * @mtd: MTD device structure
++ * @chip: chipnumber to select, -1 for deselect
++ *
++ * Default select function for 1 chip devices.
++ */
++static void nand_select_chip(struct mtd_info *mtd, int chip)
++{
++ struct nand_chip *this = mtd->priv;
++ switch(chip) {
++ case -1:
++ this->hwcontrol(mtd, NAND_CTL_CLRNCE);
++ break;
++ case 0:
++ this->hwcontrol(mtd, NAND_CTL_SETNCE);
++ break;
++
++ default:
++ BUG();
++ }
++}
++
++/**
++ * nand_write_buf - [DEFAULT] write buffer to chip
++ * @mtd: MTD device structure
++ * @buf: data buffer
++ * @len: number of bytes to write
++ *
++ * Default write function for 8bit buswith
++ */
++static void nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
++{
++ int i;
++ struct nand_chip *this = mtd->priv;
++
++ for (i=0; i<len; i++)
++ writeb(buf[i], this->IO_ADDR_W);
++}
++
++/**
++ * nand_read_buf - [DEFAULT] read chip data into buffer
++ * @mtd: MTD device structure
++ * @buf: buffer to store date
++ * @len: number of bytes to read
++ *
++ * Default read function for 8bit buswith
++ */
++static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
++{
++ int i;
++ struct nand_chip *this = mtd->priv;
++
++ for (i=0; i<len; i++)
++ buf[i] = readb(this->IO_ADDR_R);
++}
++
++/**
++ * nand_verify_buf - [DEFAULT] Verify chip data against buffer
++ * @mtd: MTD device structure
++ * @buf: buffer containing the data to compare
++ * @len: number of bytes to compare
++ *
++ * Default verify function for 8bit buswith
++ */
++static int nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
++{
++ int i;
++ struct nand_chip *this = mtd->priv;
++
++ for (i=0; i<len; i++)
++ if (buf[i] != readb(this->IO_ADDR_R))
++ return -EFAULT;
++
++ return 0;
++}
++
++/**
++ * nand_write_buf16 - [DEFAULT] write buffer to chip
++ * @mtd: MTD device structure
++ * @buf: data buffer
++ * @len: number of bytes to write
++ *
++ * Default write function for 16bit buswith
++ */
++static void nand_write_buf16(struct mtd_info *mtd, const u_char *buf, int len)
++{
++ int i;
++ struct nand_chip *this = mtd->priv;
++ u16 *p = (u16 *) buf;
++ len >>= 1;
++
++ for (i=0; i<len; i++)
++ writew(p[i], this->IO_ADDR_W);
++
++}
++
++/**
++ * nand_read_buf16 - [DEFAULT] read chip data into buffer
++ * @mtd: MTD device structure
++ * @buf: buffer to store date
++ * @len: number of bytes to read
++ *
++ * Default read function for 16bit buswith
++ */
++static void nand_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
++{
++ int i;
++ struct nand_chip *this = mtd->priv;
++ u16 *p = (u16 *) buf;
++ len >>= 1;
++
++ for (i=0; i<len; i++)
++ p[i] = readw(this->IO_ADDR_R);
++}
++
++/**
++ * nand_verify_buf16 - [DEFAULT] Verify chip data against buffer
++ * @mtd: MTD device structure
++ * @buf: buffer containing the data to compare
++ * @len: number of bytes to compare
++ *
++ * Default verify function for 16bit buswith
++ */
++static int nand_verify_buf16(struct mtd_info *mtd, const u_char *buf, int len)
++{
++ int i;
++ struct nand_chip *this = mtd->priv;
++ u16 *p = (u16 *) buf;
++ len >>= 1;
++
++ for (i=0; i<len; i++)
++ if (p[i] != readw(this->IO_ADDR_R))
++ return -EFAULT;
++
++ return 0;
++}
++
++/**
++ * nand_block_bad - [DEFAULT] Read bad block marker from the chip
++ * @mtd: MTD device structure
++ * @ofs: offset from device start
++ * @getchip: 0, if the chip is already selected
++ *
++ * Check, if the block is bad.
++ */
++static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
++{
++ int page, chipnr, res = 0;
++ struct nand_chip *this = mtd->priv;
++ u16 bad;
++
++ if (getchip) {
++ page = (int)(ofs >> this->page_shift);
++ chipnr = (int)(ofs >> this->chip_shift);
++
++ /* Grab the lock and see if the device is available */
++ nand_get_device (this, mtd, FL_READING);
++
++ /* Select the NAND device */
++ this->select_chip(mtd, chipnr);
++ } else
++ page = (int) ofs;
++
++ if (this->options & NAND_BUSWIDTH_16) {
++ this->cmdfunc (mtd, NAND_CMD_READOOB, this->badblockpos & 0xFE, page & this->pagemask);
++ bad = cpu_to_le16(this->read_word(mtd));
++ if (this->badblockpos & 0x1)
++ bad >>= 8;
++ if ((bad & 0xFF) != 0xff)
++ res = 1;
++ } else {
++ this->cmdfunc (mtd, NAND_CMD_READOOB, this->badblockpos, page & this->pagemask);
++ if (this->read_byte(mtd) != 0xff)
++ res = 1;
++ }
++
++ if (getchip) {
++ /* Deselect and wake up anyone waiting on the device */
++ nand_release_device(mtd);
++ }
++
++ return res;
++}
++
++/**
++ * nand_default_block_markbad - [DEFAULT] mark a block bad
++ * @mtd: MTD device structure
++ * @ofs: offset from device start
++ *
++ * This is the default implementation, which can be overridden by
++ * a hardware specific driver.
++*/
++#if NAND_WRITE_SUPPORT
++static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
++{
++ struct nand_chip *this = mtd->priv;
++ u_char buf[2] = {0, 0};
++ size_t retlen;
++ int block;
++
++ /* Get block number */
++ block = ((int) ofs) >> this->bbt_erase_shift;
++ if (this->bbt)
++ this->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1);
++
++#if NAND_BBT_SUPPORT
++ /* Do we have a flash based bad block table ? */
++ if (this->options & NAND_USE_FLASH_BBT)
++ return nand_update_bbt (mtd, ofs);
++#endif
++
++ /* We write two bytes, so we dont have to mess with 16 bit access */
++ ofs += mtd->oobsize + (this->badblockpos & ~0x01);
++ return nand_write_oob (mtd, ofs , 2, &retlen, buf);
++}
++#endif
++
++/**
++ * nand_check_wp - [GENERIC] check if the chip is write protected
++ * @mtd: MTD device structure
++ * Check, if the device is write protected
++ *
++ * The function expects, that the device is already selected
++ */
++#if NAND_WRITE_SUPPORT
++static int nand_check_wp (struct mtd_info *mtd)
++{
++ struct nand_chip *this = mtd->priv;
++ /* Check the WP bit */
++ this->cmdfunc (mtd, NAND_CMD_STATUS, -1, -1);
++ return (this->read_byte(mtd) & NAND_STATUS_WP) ? 0 : 1;
++}
++#endif
++
++/**
++ * nand_block_checkbad - [GENERIC] Check if a block is marked bad
++ * @mtd: MTD device structure
++ * @ofs: offset from device start
++ * @getchip: 0, if the chip is already selected
++ * @allowbbt: 1, if its allowed to access the bbt area
++ *
++ * Check, if the block is bad. Either by reading the bad block table or
++ * calling of the scan function.
++ */
++static int nand_block_checkbad (struct mtd_info *mtd, loff_t ofs, int getchip, int allowbbt)
++{
++ struct nand_chip *this = mtd->priv;
++
++ if (!this->bbt)
++ return this->block_bad(mtd, ofs, getchip);
++
++#if NAND_BBT_SUPPORT
++ /* Return info from the table */
++ return nand_isbad_bbt (mtd, ofs, allowbbt);
++#endif
++ BUG(); /* should not happen */
++}
++
++/*
++ * Wait for the ready pin, after a command
++ * The timeout is catched later.
++ */
++static void nand_wait_ready(struct mtd_info *mtd)
++{
++ struct nand_chip *this = mtd->priv;
++#if 0
++ unsigned long timeo = jiffies + 2;
++#endif
++
++ /* wait until command is processed or timeout occures */
++ do {
++ if (this->dev_ready(mtd))
++ return;
++#if 0
++ touch_softlockup_watchdog();
++ } while (time_before(jiffies, timeo));
++#endif
++ } while (1);
++}
++
++/**
++ * nand_command - [DEFAULT] Send command to NAND device
++ * @mtd: MTD device structure
++ * @command: the command to be sent
++ * @column: the column address for this command, -1 if none
++ * @page_addr: the page address for this command, -1 if none
++ *
++ * Send command to NAND device. This function is used for small page
++ * devices (256/512 Bytes per page)
++ */
++static void nand_command (struct mtd_info *mtd, unsigned command, int column, int page_addr)
++{
++ register struct nand_chip *this = mtd->priv;
++
++ /* Begin command latch cycle */
++ this->hwcontrol(mtd, NAND_CTL_SETCLE);
++ /*
++ * Write out the command to the device.
++ */
++ if (command == NAND_CMD_SEQIN) {
++ int readcmd;
++
++ if (column >= mtd->oobblock) {
++ /* OOB area */
++ column -= mtd->oobblock;
++ readcmd = NAND_CMD_READOOB;
++ } else if (column < 256) {
++ /* First 256 bytes --> READ0 */
++ readcmd = NAND_CMD_READ0;
++ } else {
++ column -= 256;
++ readcmd = NAND_CMD_READ1;
++ }
++ this->write_byte(mtd, readcmd);
++ }
++ this->write_byte(mtd, command);
++
++ /* Set ALE and clear CLE to start address cycle */
++ this->hwcontrol(mtd, NAND_CTL_CLRCLE);
++
++ if (column != -1 || page_addr != -1) {
++ this->hwcontrol(mtd, NAND_CTL_SETALE);
++
++ /* Serially input address */
++ if (column != -1) {
++ /* Adjust columns for 16 bit buswidth */
++ if (this->options & NAND_BUSWIDTH_16)
++ column >>= 1;
++ this->write_byte(mtd, column);
++ }
++ if (page_addr != -1) {
++ this->write_byte(mtd, (unsigned char) (page_addr & 0xff));
++ this->write_byte(mtd, (unsigned char) ((page_addr >> 8) & 0xff));
++ /* One more address cycle for devices > 32MiB */
++ if (this->chipsize > (32 << 20))
++ this->write_byte(mtd, (unsigned char) ((page_addr >> 16) & 0x0f));
++ }
++ /* Latch in address */
++ this->hwcontrol(mtd, NAND_CTL_CLRALE);
++ }
++
++ /*
++ * program and erase have their own busy handlers
++ * status and sequential in needs no delay
++ */
++ switch (command) {
++
++ case NAND_CMD_PAGEPROG:
++ case NAND_CMD_ERASE1:
++ case NAND_CMD_ERASE2:
++ case NAND_CMD_SEQIN:
++ case NAND_CMD_STATUS:
++ return;
++
++ case NAND_CMD_RESET:
++ if (this->dev_ready)
++ break;
++ udelay(this->chip_delay);
++ this->hwcontrol(mtd, NAND_CTL_SETCLE);
++ this->write_byte(mtd, NAND_CMD_STATUS);
++ this->hwcontrol(mtd, NAND_CTL_CLRCLE);
++ while ( !(this->read_byte(mtd) & NAND_STATUS_READY));
++ return;
++
++ /* This applies to read commands */
++ default:
++ /*
++ * If we don't have access to the busy pin, we apply the given
++ * command delay
++ */
++ if (!this->dev_ready) {
++ udelay (this->chip_delay);
++ return;
++ }
++ }
++ /* Apply this short delay always to ensure that we do wait tWB in
++ * any case on any machine. */
++ ndelay (100);
++
++ nand_wait_ready(mtd);
++}
++
++/**
++ * nand_command_lp - [DEFAULT] Send command to NAND large page device
++ * @mtd: MTD device structure
++ * @command: the command to be sent
++ * @column: the column address for this command, -1 if none
++ * @page_addr: the page address for this command, -1 if none
++ *
++ * Send command to NAND device. This is the version for the new large page devices
++ * We dont have the seperate regions as we have in the small page devices.
++ * We must emulate NAND_CMD_READOOB to keep the code compatible.
++ *
++ */
++static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column, int page_addr)
++{
++ register struct nand_chip *this = mtd->priv;
++
++ /* Emulate NAND_CMD_READOOB */
++ if (command == NAND_CMD_READOOB) {
++ column += mtd->oobblock;
++ command = NAND_CMD_READ0;
++ }
++
++
++ /* Begin command latch cycle */
++ this->hwcontrol(mtd, NAND_CTL_SETCLE);
++ /* Write out the command to the device. */
++ this->write_byte(mtd, (command & 0xff));
++ /* End command latch cycle */
++ this->hwcontrol(mtd, NAND_CTL_CLRCLE);
++
++ if (column != -1 || page_addr != -1) {
++ this->hwcontrol(mtd, NAND_CTL_SETALE);
++
++ /* Serially input address */
++ if (column != -1) {
++ /* Adjust columns for 16 bit buswidth */
++ if (this->options & NAND_BUSWIDTH_16)
++ column >>= 1;
++ this->write_byte(mtd, column & 0xff);
++ this->write_byte(mtd, column >> 8);
++ }
++ if (page_addr != -1) {
++ this->write_byte(mtd, (unsigned char) (page_addr & 0xff));
++ this->write_byte(mtd, (unsigned char) ((page_addr >> 8) & 0xff));
++ /* One more address cycle for devices > 128MiB */
++ if (this->chipsize > (128 << 20))
++ this->write_byte(mtd, (unsigned char) ((page_addr >> 16) & 0xff));
++ }
++ /* Latch in address */
++ this->hwcontrol(mtd, NAND_CTL_CLRALE);
++ }
++
++ /*
++ * program and erase have their own busy handlers
++ * status, sequential in, and deplete1 need no delay
++ */
++ switch (command) {
++
++ case NAND_CMD_CACHEDPROG:
++ case NAND_CMD_PAGEPROG:
++ case NAND_CMD_ERASE1:
++ case NAND_CMD_ERASE2:
++ case NAND_CMD_SEQIN:
++ case NAND_CMD_STATUS:
++ case NAND_CMD_DEPLETE1:
++ return;
++
++ /*
++ * read error status commands require only a short delay
++ */
++ case NAND_CMD_STATUS_ERROR:
++ case NAND_CMD_STATUS_ERROR0:
++ case NAND_CMD_STATUS_ERROR1:
++ case NAND_CMD_STATUS_ERROR2:
++ case NAND_CMD_STATUS_ERROR3:
++ udelay(this->chip_delay);
++ return;
++
++ case NAND_CMD_RESET:
++ if (this->dev_ready)
++ break;
++ udelay(this->chip_delay);
++ this->hwcontrol(mtd, NAND_CTL_SETCLE);
++ this->write_byte(mtd, NAND_CMD_STATUS);
++ this->hwcontrol(mtd, NAND_CTL_CLRCLE);
++ while ( !(this->read_byte(mtd) & NAND_STATUS_READY));
++ return;
++
++ case NAND_CMD_READ0:
++ /* Begin command latch cycle */
++ this->hwcontrol(mtd, NAND_CTL_SETCLE);
++ /* Write out the start read command */
++ this->write_byte(mtd, NAND_CMD_READSTART);
++ /* End command latch cycle */
++ this->hwcontrol(mtd, NAND_CTL_CLRCLE);
++ /* Fall through into ready check */
++
++ /* This applies to read commands */
++ default:
++ /*
++ * If we don't have access to the busy pin, we apply the given
++ * command delay
++ */
++ if (!this->dev_ready) {
++ udelay (this->chip_delay);
++ return;
++ }
++ }
++
++ /* Apply this short delay always to ensure that we do wait tWB in
++ * any case on any machine. */
++ ndelay (100);
++
++ nand_wait_ready(mtd);
++}
++
++/**
++ * nand_get_device - [GENERIC] Get chip for selected access
++ * @this: the nand chip descriptor
++ * @mtd: MTD device structure
++ * @new_state: the state which is requested
++ *
++ * Get the device and lock it for exclusive access
++ */
++static int nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int new_state)
++{
++ this->state = new_state;
++ return 0;
++#if 0
++ struct nand_chip *active;
++ spinlock_t *lock;
++ wait_queue_head_t *wq;
++ DECLARE_WAITQUEUE (wait, current);
++
++ lock = (this->controller) ? &this->controller->lock : &this->chip_lock;
++ wq = (this->controller) ? &this->controller->wq : &this->wq;
++retry:
++ active = this;
++ spin_lock(lock);
++
++ /* Hardware controller shared among independend devices */
++ if (this->controller) {
++ if (this->controller->active)
++ active = this->controller->active;
++ else
++ this->controller->active = this;
++ }
++ if (active == this && this->state == FL_READY) {
++ this->state = new_state;
++ spin_unlock(lock);
++ return 0;
++ }
++ if (new_state == FL_PM_SUSPENDED) {
++ spin_unlock(lock);
++ return (this->state == FL_PM_SUSPENDED) ? 0 : -EAGAIN;
++ }
++ set_current_state(TASK_UNINTERRUPTIBLE);
++ add_wait_queue(wq, &wait);
++ spin_unlock(lock);
++ schedule();
++ remove_wait_queue(wq, &wait);
++ goto retry;
++#endif
++}
++
++/**
++ * nand_wait - [DEFAULT] wait until the command is done
++ * @mtd: MTD device structure
++ * @this: NAND chip structure
++ * @state: state to select the max. timeout value
++ *
++ * Wait for command done. This applies to erase and program only
++ * Erase can take up to 400ms and program up to 20ms according to
++ * general NAND and SmartMedia specs
++ *
++*/
++static int nand_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
++{
++
++#if 0
++ unsigned long timeo = jiffies;
++#endif
++ int status;
++
++#if 0
++ if (state == FL_ERASING)
++ timeo += (HZ * 400) / 1000;
++ else
++ timeo += (HZ * 20) / 1000;
++#endif
++
++ /* Apply this short delay always to ensure that we do wait tWB in
++ * any case on any machine. */
++ ndelay (100);
++
++ if ((state == FL_ERASING) && (this->options & NAND_IS_AND))
++ this->cmdfunc (mtd, NAND_CMD_STATUS_MULTI, -1, -1);
++ else
++ this->cmdfunc (mtd, NAND_CMD_STATUS, -1, -1);
++
++#if 0
++ while (time_before(jiffies, timeo)) {
++ /* Check, if we were interrupted */
++ if (this->state != state)
++ return 0;
++#endif
++ while (1) { /* wait indefinitely */
++
++ if (this->dev_ready) {
++ if (this->dev_ready(mtd))
++ break;
++ } else {
++ if (this->read_byte(mtd) & NAND_STATUS_READY)
++ break;
++ }
++
++#if 0
++ cond_resched();
++#endif
++ }
++ status = (int) this->read_byte(mtd);
++ return status;
++}
++
++/**
++ * nand_write_page - [GENERIC] write one page
++ * @mtd: MTD device structure
++ * @this: NAND chip structure
++ * @page: startpage inside the chip, must be called with (page & this->pagemask)
++ * @oob_buf: out of band data buffer
++ * @oobsel: out of band selecttion structre
++ * @cached: 1 = enable cached programming if supported by chip
++ *
++ * Nand_page_program function is used for write and writev !
++ * This function will always program a full page of data
++ * If you call it with a non page aligned buffer, you're lost :)
++ *
++ * Cached programming is not supported yet.
++ */
++#if NAND_WRITE_SUPPORT
++static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int page,
++ u_char *oob_buf, struct nand_oobinfo *oobsel, int cached)
++{
++ int i, status;
++ u_char ecc_code[32];
++ int eccmode = oobsel->useecc ? this->eccmode : NAND_ECC_NONE;
++ int *oob_config = oobsel->eccpos;
++ int datidx = 0, eccidx = 0, eccsteps = this->eccsteps;
++ int eccbytes = 0;
++
++ /* FIXME: Enable cached programming */
++ cached = 0;
++
++ /* Send command to begin auto page programming */
++ this->cmdfunc (mtd, NAND_CMD_SEQIN, 0x00, page);
++
++ /* Write out complete page of data, take care of eccmode */
++ switch (eccmode) {
++ /* No ecc, write all */
++ case NAND_ECC_NONE:
++ puts ("Writing data without ECC to NAND-FLASH is not recommended\r\n");
++ this->write_buf(mtd, this->data_poi, mtd->oobblock);
++ break;
++
++ /* Software ecc 3/256, write all */
++ case NAND_ECC_SOFT:
++ for (; eccsteps; eccsteps--) {
++ this->calculate_ecc(mtd, &this->data_poi[datidx], ecc_code);
++ for (i = 0; i < 3; i++, eccidx++)
++ oob_buf[oob_config[eccidx]] = ecc_code[i];
++ datidx += this->eccsize;
++ }
++ this->write_buf(mtd, this->data_poi, mtd->oobblock);
++ break;
++ default:
++ eccbytes = this->eccbytes;
++ for (; eccsteps; eccsteps--) {
++ /* enable hardware ecc logic for write */
++ this->enable_hwecc(mtd, NAND_ECC_WRITE);
++ this->write_buf(mtd, &this->data_poi[datidx], this->eccsize);
++ this->calculate_ecc(mtd, &this->data_poi[datidx], ecc_code);
++ for (i = 0; i < eccbytes; i++, eccidx++)
++ oob_buf[oob_config[eccidx]] = ecc_code[i];
++ /* If the hardware ecc provides syndromes then
++ * the ecc code must be written immidiately after
++ * the data bytes (words) */
++ if (this->options & NAND_HWECC_SYNDROME)
++ this->write_buf(mtd, ecc_code, eccbytes);
++ datidx += this->eccsize;
++ }
++ break;
++ }
++
++ /* Write out OOB data */
++ if (this->options & NAND_HWECC_SYNDROME)
++ this->write_buf(mtd, &oob_buf[oobsel->eccbytes], mtd->oobsize - oobsel->eccbytes);
++ else
++ this->write_buf(mtd, oob_buf, mtd->oobsize);
++
++ /* Send command to actually program the data */
++ this->cmdfunc (mtd, cached ? NAND_CMD_CACHEDPROG : NAND_CMD_PAGEPROG, -1, -1);
++
++ if (!cached) {
++ /* call wait ready function */
++ status = this->waitfunc (mtd, this, FL_WRITING);
++
++ /* See if operation failed and additional status checks are available */
++ if ((status & NAND_STATUS_FAIL) && (this->errstat)) {
++ status = this->errstat(mtd, this, FL_WRITING, status, page);
++ }
++
++ /* See if device thinks it succeeded */
++ if (status & NAND_STATUS_FAIL) {
++ DEBUG (MTD_DEBUG_LEVEL0, "%s: " "Failed write, page 0x%08x, ", __FUNCTION__, page);
++ return -EIO;
++ }
++ } else {
++ /* FIXME: Implement cached programming ! */
++ /* wait until cache is ready*/
++ // status = this->waitfunc (mtd, this, FL_CACHEDRPG);
++ }
++ return 0;
++}
++#endif
++
++#if NAND_WRITE_SUPPORT
++#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
++/**
++ * nand_verify_pages - [GENERIC] verify the chip contents after a write
++ * @mtd: MTD device structure
++ * @this: NAND chip structure
++ * @page: startpage inside the chip, must be called with (page & this->pagemask)
++ * @numpages: number of pages to verify
++ * @oob_buf: out of band data buffer
++ * @oobsel: out of band selecttion structre
++ * @chipnr: number of the current chip
++ * @oobmode: 1 = full buffer verify, 0 = ecc only
++ *
++ * The NAND device assumes that it is always writing to a cleanly erased page.
++ * Hence, it performs its internal write verification only on bits that
++ * transitioned from 1 to 0. The device does NOT verify the whole page on a
++ * byte by byte basis. It is possible that the page was not completely erased
++ * or the page is becoming unusable due to wear. The read with ECC would catch
++ * the error later when the ECC page check fails, but we would rather catch
++ * it early in the page write stage. Better to write no data than invalid data.
++ */
++static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int page, int numpages,
++ u_char *oob_buf, struct nand_oobinfo *oobsel, int chipnr, int oobmode)
++{
++ int i, j, datidx = 0, oobofs = 0, res = -EIO;
++ int eccsteps = this->eccsteps;
++ int hweccbytes;
++ u_char oobdata[64];
++
++ hweccbytes = (this->options & NAND_HWECC_SYNDROME) ? (oobsel->eccbytes / eccsteps) : 0;
++
++ /* Send command to read back the first page */
++ this->cmdfunc (mtd, NAND_CMD_READ0, 0, page);
++
++ for(;;) {
++ for (j = 0; j < eccsteps; j++) {
++ /* Loop through and verify the data */
++ if (this->verify_buf(mtd, &this->data_poi[datidx], mtd->eccsize)) {
++ DEBUG (MTD_DEBUG_LEVEL0, "%s: " "Failed write verify, page 0x%08x ", __FUNCTION__, page);
++ goto out;
++ }
++ datidx += mtd->eccsize;
++ /* Have we a hw generator layout ? */
++ if (!hweccbytes)
++ continue;
++ if (this->verify_buf(mtd, &this->oob_buf[oobofs], hweccbytes)) {
++ DEBUG (MTD_DEBUG_LEVEL0, "%s: " "Failed write verify, page 0x%08x ", __FUNCTION__, page);
++ goto out;
++ }
++ oobofs += hweccbytes;
++ }
++
++ /* check, if we must compare all data or if we just have to
++ * compare the ecc bytes
++ */
++ if (oobmode) {
++ if (this->verify_buf(mtd, &oob_buf[oobofs], mtd->oobsize - hweccbytes * eccsteps)) {
++ DEBUG (MTD_DEBUG_LEVEL0, "%s: " "Failed write verify, page 0x%08x ", __FUNCTION__, page);
++ goto out;
++ }
++ } else {
++ /* Read always, else autoincrement fails */
++ this->read_buf(mtd, oobdata, mtd->oobsize - hweccbytes * eccsteps);
++
++ if (oobsel->useecc != MTD_NANDECC_OFF && !hweccbytes) {
++ int ecccnt = oobsel->eccbytes;
++
++ for (i = 0; i < ecccnt; i++) {
++ int idx = oobsel->eccpos[i];
++ if (oobdata[idx] != oob_buf[oobofs + idx] ) {
++ DEBUG (MTD_DEBUG_LEVEL0,
++ "%s: Failed ECC write "
++ "verify, page 0x%08x, " "%6i bytes were succesful\n", __FUNCTION__, page, i);
++ goto out;
++ }
++ }
++ }
++ }
++ oobofs += mtd->oobsize - hweccbytes * eccsteps;
++ page++;
++ numpages--;
++
++ /* Apply delay or wait for ready/busy pin
++ * Do this before the AUTOINCR check, so no problems
++ * arise if a chip which does auto increment
++ * is marked as NOAUTOINCR by the board driver.
++ * Do this also before returning, so the chip is
++ * ready for the next command.
++ */
++ if (!this->dev_ready)
++ udelay (this->chip_delay);
++ else
++ nand_wait_ready(mtd);
++
++ /* All done, return happy */
++ if (!numpages)
++ return 0;
++
++
++ /* Check, if the chip supports auto page increment */
++ if (!NAND_CANAUTOINCR(this))
++ this->cmdfunc (mtd, NAND_CMD_READ0, 0x00, page);
++ }
++ /*
++ * Terminate the read command. We come here in case of an error
++ * So we must issue a reset command.
++ */
++out:
++ this->cmdfunc (mtd, NAND_CMD_RESET, -1, -1);
++ return res;
++}
++#endif
++#endif
++
++/**
++ * nand_read - [MTD Interface] MTD compability function for nand_do_read_ecc
++ * @mtd: MTD device structure
++ * @from: offset to read from
++ * @len: number of bytes to read
++ * @retlen: pointer to variable to store the number of read bytes
++ * @buf: the databuffer to put data
++ *
++ * This function simply calls nand_do_read_ecc with oob buffer and oobsel = NULL
++ * and flags = 0xff
++ */
++static int nand_read (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf)
++{
++ return nand_do_read_ecc (mtd, from, len, retlen, buf, NULL, &mtd->oobinfo, 0xff);
++}
++
++
++/**
++ * nand_read_ecc - [MTD Interface] MTD compability function for nand_do_read_ecc
++ * @mtd: MTD device structure
++ * @from: offset to read from
++ * @len: number of bytes to read
++ * @retlen: pointer to variable to store the number of read bytes
++ * @buf: the databuffer to put data
++ * @oob_buf: filesystem supplied oob data buffer
++ * @oobsel: oob selection structure
++ *
++ * This function simply calls nand_do_read_ecc with flags = 0xff
++ */
++static int nand_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
++ size_t * retlen, u_char * buf, u_char * oob_buf, struct nand_oobinfo *oobsel)
++{
++ /* use userspace supplied oobinfo, if zero */
++ if (oobsel == NULL)
++ oobsel = &mtd->oobinfo;
++ return nand_do_read_ecc(mtd, from, len, retlen, buf, oob_buf, oobsel, 0xff);
++}
++
++
++/**
++ * nand_do_read_ecc - [MTD Interface] Read data with ECC
++ * @mtd: MTD device structure
++ * @from: offset to read from
++ * @len: number of bytes to read
++ * @retlen: pointer to variable to store the number of read bytes
++ * @buf: the databuffer to put data
++ * @oob_buf: filesystem supplied oob data buffer (can be NULL)
++ * @oobsel: oob selection structure
++ * @flags: flag to indicate if nand_get_device/nand_release_device should be preformed
++ * and how many corrected error bits are acceptable:
++ * bits 0..7 - number of tolerable errors
++ * bit 8 - 0 == do not get/release chip, 1 == get/release chip
++ *
++ * NAND read with ECC
++ */
++int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
++ size_t * retlen, u_char * buf, u_char * oob_buf,
++ struct nand_oobinfo *oobsel, int flags)
++{
++
++ int i, j, col, realpage, page, end, ecc, chipnr, sndcmd = 1;
++ int read = 0, oob = 0, ecc_status = 0, ecc_failed = 0;
++ struct nand_chip *this = mtd->priv;
++ u_char *data_poi, *oob_data = oob_buf;
++ u_char ecc_calc[32];
++ u_char ecc_code[32];
++ int eccmode, eccsteps;
++ int *oob_config, datidx;
++ int blockcheck = (1 << (this->phys_erase_shift - this->page_shift)) - 1;
++ int eccbytes;
++ int compareecc = 1;
++ int oobreadlen;
++
++
++ DEBUG (MTD_DEBUG_LEVEL3, "nand_read_ecc: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
++ D(
++ puts ("nand_read_ecc: from = ");
++ putx (from);
++ puts (", len = ");
++ putx(len);
++ putnl();
++ )
++
++ /* Do not allow reads past end of device */
++ if ((from + len) > mtd->size) {
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_read_ecc: Attempt read beyond end of device\n");
++ D(puts("nand_read_ecc: Attempt read beyond end of device\r\n"));
++ *retlen = 0;
++ return -EINVAL;
++ }
++
++ /* Grab the lock and see if the device is available */
++ if (flags & NAND_GET_DEVICE)
++ nand_get_device (this, mtd, FL_READING);
++
++ /* Autoplace of oob data ? Use the default placement scheme */
++ if (oobsel->useecc == MTD_NANDECC_AUTOPLACE)
++ oobsel = this->autooob;
++
++ eccmode = oobsel->useecc ? this->eccmode : NAND_ECC_NONE;
++ oob_config = oobsel->eccpos;
++
++ /* Select the NAND device */
++ chipnr = (int)(from >> this->chip_shift);
++ this->select_chip(mtd, chipnr);
++
++ /* First we calculate the starting page */
++ realpage = (int) (from >> this->page_shift);
++ page = realpage & this->pagemask;
++
++ /* Get raw starting column */
++ col = from & (mtd->oobblock - 1);
++
++ end = mtd->oobblock;
++ ecc = this->eccsize;
++ eccbytes = this->eccbytes;
++
++ if ((eccmode == NAND_ECC_NONE) || (this->options & NAND_HWECC_SYNDROME))
++ compareecc = 0;
++
++ oobreadlen = mtd->oobsize;
++ if (this->options & NAND_HWECC_SYNDROME)
++ oobreadlen -= oobsel->eccbytes;
++
++ /* Loop until all data read */
++ while (read < len) {
++
++ int aligned = (!col && (len - read) >= end);
++ /*
++ * If the read is not page aligned, we have to read into data buffer
++ * due to ecc, else we read into return buffer direct
++ */
++ if (aligned)
++ data_poi = &buf[read];
++ else
++ data_poi = this->data_buf;
++
++ /* Check, if we have this page in the buffer
++ *
++ * FIXME: Make it work when we must provide oob data too,
++ * check the usage of data_buf oob field
++ */
++ if (realpage == this->pagebuf && !oob_buf) {
++ /* aligned read ? */
++ if (aligned)
++ memcpy (data_poi, this->data_buf, end);
++ goto readdata;
++ }
++
++ /* Check, if we must send the read command */
++ if (sndcmd) {
++ this->cmdfunc (mtd, NAND_CMD_READ0, 0x00, page);
++ sndcmd = 0;
++ }
++
++ /* get oob area, if we have no oob buffer from fs-driver */
++ if (!oob_buf || oobsel->useecc == MTD_NANDECC_AUTOPLACE ||
++ oobsel->useecc == MTD_NANDECC_AUTOPL_USR)
++ oob_data = &this->data_buf[end];
++
++ eccsteps = this->eccsteps;
++
++ switch (eccmode) {
++ case NAND_ECC_NONE: { /* No ECC, Read in a page */
++#if 0
++ static unsigned long lastwhinge = 0;
++ if ((lastwhinge / HZ) != (jiffies / HZ)) {
++ puts ("Reading data from NAND FLASH without ECC is not recommended\r\n");
++ lastwhinge = jiffies;
++ }
++#endif
++ this->read_buf(mtd, data_poi, end);
++ break;
++ }
++
++ case NAND_ECC_SOFT: /* Software ECC 3/256: Read in a page + oob data */
++ this->read_buf(mtd, data_poi, end);
++ for (i = 0, datidx = 0; eccsteps; eccsteps--, i+=3, datidx += ecc)
++ this->calculate_ecc(mtd, &data_poi[datidx], &ecc_calc[i]);
++ break;
++
++ default:
++#if NAND_HWECC_SUPPORT
++ for (i = 0, datidx = 0; eccsteps; eccsteps--, i+=eccbytes, datidx += ecc) {
++ this->enable_hwecc(mtd, NAND_ECC_READ);
++ this->read_buf(mtd, &data_poi[datidx], ecc);
++
++ /* HW ecc with syndrome calculation must read the
++ * syndrome from flash immidiately after the data */
++ if (!compareecc) {
++ /* Some hw ecc generators need to know when the
++ * syndrome is read from flash */
++ this->enable_hwecc(mtd, NAND_ECC_READSYN);
++ this->read_buf(mtd, &oob_data[i], eccbytes);
++ /* We calc error correction directly, it checks the hw
++ * generator for an error, reads back the syndrome and
++ * does the error correction on the fly */
++ ecc_status = this->correct_data(mtd, &data_poi[datidx], &oob_data[i], &ecc_code[i]);
++ if ((ecc_status == -1) || (ecc_status > (flags && 0xff))) {
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_read_ecc: "
++ "Failed ECC read, page 0x%08x on chip %d\n", page, chipnr);
++ ecc_failed++;
++ }
++ } else {
++ this->calculate_ecc(mtd, &data_poi[datidx], &ecc_calc[i]);
++ }
++ }
++#endif
++ break;
++ }
++
++ /* read oobdata */
++ this->read_buf(mtd, &oob_data[mtd->oobsize - oobreadlen], oobreadlen);
++
++ /* Skip ECC check, if not requested (ECC_NONE or HW_ECC with syndromes) */
++ if (!compareecc)
++ goto readoob;
++
++ /* Pick the ECC bytes out of the oob data */
++ for (j = 0; j < oobsel->eccbytes; j++)
++ ecc_code[j] = oob_data[oob_config[j]];
++
++ /* correct data, if neccecary */
++ for (i = 0, j = 0, datidx = 0; i < this->eccsteps; i++, datidx += ecc) {
++ ecc_status = this->correct_data(mtd, &data_poi[datidx], &ecc_code[j], &ecc_calc[j]);
++
++ /* Get next chunk of ecc bytes */
++ j += eccbytes;
++
++ /* Check, if we have a fs supplied oob-buffer,
++ * This is the legacy mode. Used by YAFFS1
++ * Should go away some day
++ */
++ if (oob_buf && oobsel->useecc == MTD_NANDECC_PLACE) {
++ int *p = (int *)(&oob_data[mtd->oobsize]);
++ p[i] = ecc_status;
++ }
++
++ if ((ecc_status == -1) || (ecc_status > (flags && 0xff))) {
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_read_ecc: " "Failed ECC read, page 0x%08x\n", page);
++ D(
++ puts ("nand_read_ecc: " "Failed ECC read, page ");
++ putx (page);
++ putnl();
++ )
++ ecc_failed++;
++ }
++ }
++
++ readoob:
++ /* check, if we have a fs supplied oob-buffer */
++ if (oob_buf) {
++ /* without autoplace. Legacy mode used by YAFFS1 */
++ switch(oobsel->useecc) {
++ case MTD_NANDECC_AUTOPLACE:
++ case MTD_NANDECC_AUTOPL_USR:
++ /* Walk through the autoplace chunks */
++ for (i = 0; oobsel->oobfree[i][1]; i++) {
++ int from = oobsel->oobfree[i][0];
++ int num = oobsel->oobfree[i][1];
++ memcpy(&oob_buf[oob], &oob_data[from], num);
++ oob += num;
++ }
++ break;
++ case MTD_NANDECC_PLACE:
++ /* YAFFS1 legacy mode */
++ oob_data += this->eccsteps * sizeof (int);
++ default:
++ oob_data += mtd->oobsize;
++ }
++ }
++ readdata:
++ /* Partial page read, transfer data into fs buffer */
++ if (!aligned) {
++ for (j = col; j < end && read < len; j++)
++ buf[read++] = data_poi[j];
++ this->pagebuf = realpage;
++ } else
++ read += mtd->oobblock;
++
++ /* Apply delay or wait for ready/busy pin
++ * Do this before the AUTOINCR check, so no problems
++ * arise if a chip which does auto increment
++ * is marked as NOAUTOINCR by the board driver.
++ */
++ if (!this->dev_ready)
++ udelay (this->chip_delay);
++ else
++ nand_wait_ready(mtd);
++
++ if (read == len)
++ break;
++
++ /* For subsequent reads align to page boundary. */
++ col = 0;
++ /* Increment page address */
++ realpage++;
++
++ page = realpage & this->pagemask;
++ /* Check, if we cross a chip boundary */
++ if (!page) {
++ chipnr++;
++ this->select_chip(mtd, -1);
++ this->select_chip(mtd, chipnr);
++ }
++ /* Check, if the chip supports auto page increment
++ * or if we have hit a block boundary.
++ */
++ if (!NAND_CANAUTOINCR(this) || !(page & blockcheck))
++ sndcmd = 1;
++ }
++
++ /* Deselect and wake up anyone waiting on the device */
++ if (flags & NAND_GET_DEVICE)
++ nand_release_device(mtd);
++
++ /*
++ * Return success, if no ECC failures, else -EBADMSG
++ * fs driver will take care of that, because
++ * retlen == desired len and result == -EBADMSG
++ */
++ *retlen = read;
++ return ecc_failed ? -EBADMSG : 0;
++}
++
++/**
++ * nand_read_oob - [MTD Interface] NAND read out-of-band
++ * @mtd: MTD device structure
++ * @from: offset to read from
++ * @len: number of bytes to read
++ * @retlen: pointer to variable to store the number of read bytes
++ * @buf: the databuffer to put data
++ *
++ * NAND read out-of-band data from the spare area
++ */
++static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf)
++{
++ int i, col, page, chipnr;
++ struct nand_chip *this = mtd->priv;
++ int blockcheck = (1 << (this->phys_erase_shift - this->page_shift)) - 1;
++
++ DEBUG (MTD_DEBUG_LEVEL3, "nand_read_oob: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
++
++ /* Shift to get page */
++ page = (int)(from >> this->page_shift);
++ chipnr = (int)(from >> this->chip_shift);
++
++ /* Mask to get column */
++ col = from & (mtd->oobsize - 1);
++
++ /* Initialize return length value */
++ *retlen = 0;
++
++ /* Do not allow reads past end of device */
++ if ((from + len) > mtd->size) {
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_read_oob: Attempt read beyond end of device\n");
++ *retlen = 0;
++ return -EINVAL;
++ }
++
++ /* Grab the lock and see if the device is available */
++ nand_get_device (this, mtd , FL_READING);
++
++ /* Select the NAND device */
++ this->select_chip(mtd, chipnr);
++
++ /* Send the read command */
++ this->cmdfunc (mtd, NAND_CMD_READOOB, col, page & this->pagemask);
++ /*
++ * Read the data, if we read more than one page
++ * oob data, let the device transfer the data !
++ */
++ i = 0;
++ while (i < len) {
++ int thislen = mtd->oobsize - col;
++ thislen = min_t(int, thislen, len);
++ this->read_buf(mtd, &buf[i], thislen);
++ i += thislen;
++
++ /* Read more ? */
++ if (i < len) {
++ page++;
++ col = 0;
++
++ /* Check, if we cross a chip boundary */
++ if (!(page & this->pagemask)) {
++ chipnr++;
++ this->select_chip(mtd, -1);
++ this->select_chip(mtd, chipnr);
++ }
++
++ /* Apply delay or wait for ready/busy pin
++ * Do this before the AUTOINCR check, so no problems
++ * arise if a chip which does auto increment
++ * is marked as NOAUTOINCR by the board driver.
++ */
++ if (!this->dev_ready)
++ udelay (this->chip_delay);
++ else
++ nand_wait_ready(mtd);
++
++ /* Check, if the chip supports auto page increment
++ * or if we have hit a block boundary.
++ */
++ if (!NAND_CANAUTOINCR(this) || !(page & blockcheck)) {
++ /* For subsequent page reads set offset to 0 */
++ this->cmdfunc (mtd, NAND_CMD_READOOB, 0x0, page & this->pagemask);
++ }
++ }
++ }
++
++ /* Deselect and wake up anyone waiting on the device */
++ nand_release_device(mtd);
++
++ /* Return happy */
++ *retlen = len;
++ return 0;
++}
++
++/**
++ * nand_read_raw - [GENERIC] Read raw data including oob into buffer
++ * @mtd: MTD device structure
++ * @buf: temporary buffer
++ * @from: offset to read from
++ * @len: number of bytes to read
++ * @ooblen: number of oob data bytes to read
++ *
++ * Read raw data including oob into buffer
++ */
++int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_t len, size_t ooblen)
++{
++ struct nand_chip *this = mtd->priv;
++ int page = (int) (from >> this->page_shift);
++ int chip = (int) (from >> this->chip_shift);
++ int sndcmd = 1;
++ int cnt = 0;
++ int pagesize = mtd->oobblock + mtd->oobsize;
++ int blockcheck = (1 << (this->phys_erase_shift - this->page_shift)) - 1;
++
++ /* Do not allow reads past end of device */
++ if ((from + len) > mtd->size) {
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_read_raw: Attempt read beyond end of device\n");
++ return -EINVAL;
++ }
++
++ /* Grab the lock and see if the device is available */
++ nand_get_device (this, mtd , FL_READING);
++
++ this->select_chip (mtd, chip);
++
++ /* Add requested oob length */
++ len += ooblen;
++
++ while (len) {
++ if (sndcmd)
++ this->cmdfunc (mtd, NAND_CMD_READ0, 0, page & this->pagemask);
++ sndcmd = 0;
++
++ this->read_buf (mtd, &buf[cnt], pagesize);
++
++ len -= pagesize;
++ cnt += pagesize;
++ page++;
++
++ if (!this->dev_ready)
++ udelay (this->chip_delay);
++ else
++ nand_wait_ready(mtd);
++
++ /* Check, if the chip supports auto page increment */
++ if (!NAND_CANAUTOINCR(this) || !(page & blockcheck))
++ sndcmd = 1;
++ }
++
++ /* Deselect and wake up anyone waiting on the device */
++ nand_release_device(mtd);
++ return 0;
++}
++
++
++/**
++ * nand_prepare_oobbuf - [GENERIC] Prepare the out of band buffer
++ * @mtd: MTD device structure
++ * @fsbuf: buffer given by fs driver
++ * @oobsel: out of band selection structre
++ * @autoplace: 1 = place given buffer into the oob bytes
++ * @numpages: number of pages to prepare
++ *
++ * Return:
++ * 1. Filesystem buffer available and autoplacement is off,
++ * return filesystem buffer
++ * 2. No filesystem buffer or autoplace is off, return internal
++ * buffer
++ * 3. Filesystem buffer is given and autoplace selected
++ * put data from fs buffer into internal buffer and
++ * retrun internal buffer
++ *
++ * Note: The internal buffer is filled with 0xff. This must
++ * be done only once, when no autoplacement happens
++ * Autoplacement sets the buffer dirty flag, which
++ * forces the 0xff fill before using the buffer again.
++ *
++*/
++#if NAND_WRITE_SUPPORT
++static u_char * nand_prepare_oobbuf (struct mtd_info *mtd, u_char *fsbuf, struct nand_oobinfo *oobsel,
++ int autoplace, int numpages)
++{
++ struct nand_chip *this = mtd->priv;
++ int i, len, ofs;
++
++ /* Zero copy fs supplied buffer */
++ if (fsbuf && !autoplace)
++ return fsbuf;
++
++ /* Check, if the buffer must be filled with ff again */
++ if (this->oobdirty) {
++ memset (this->oob_buf, 0xff,
++ mtd->oobsize << (this->phys_erase_shift - this->page_shift));
++ this->oobdirty = 0;
++ }
++
++ /* If we have no autoplacement or no fs buffer use the internal one */
++ if (!autoplace || !fsbuf)
++ return this->oob_buf;
++
++ /* Walk through the pages and place the data */
++ this->oobdirty = 1;
++ ofs = 0;
++ while (numpages--) {
++ for (i = 0, len = 0; len < mtd->oobavail; i++) {
++ int to = ofs + oobsel->oobfree[i][0];
++ int num = oobsel->oobfree[i][1];
++ memcpy (&this->oob_buf[to], fsbuf, num);
++ len += num;
++ fsbuf += num;
++ }
++ ofs += mtd->oobavail;
++ }
++ return this->oob_buf;
++}
++#endif
++
++#define NOTALIGNED(x) (x & (mtd->oobblock-1)) != 0
++
++/**
++ * nand_write - [MTD Interface] compability function for nand_write_ecc
++ * @mtd: MTD device structure
++ * @to: offset to write to
++ * @len: number of bytes to write
++ * @retlen: pointer to variable to store the number of written bytes
++ * @buf: the data to write
++ *
++ * This function simply calls nand_write_ecc with oob buffer and oobsel = NULL
++ *
++*/
++#if NAND_WRITE_SUPPORT
++static int nand_write (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char * buf)
++{
++ return (nand_write_ecc (mtd, to, len, retlen, buf, NULL, NULL));
++}
++#endif
++
++/**
++ * nand_write_ecc - [MTD Interface] NAND write with ECC
++ * @mtd: MTD device structure
++ * @to: offset to write to
++ * @len: number of bytes to write
++ * @retlen: pointer to variable to store the number of written bytes
++ * @buf: the data to write
++ * @eccbuf: filesystem supplied oob data buffer
++ * @oobsel: oob selection structure
++ *
++ * NAND write with ECC
++ */
++#if NAND_WRITE_SUPPORT
++static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
++ size_t * retlen, const u_char * buf, u_char * eccbuf, struct nand_oobinfo *oobsel)
++{
++ int startpage, page, ret = -EIO, oob = 0, written = 0, chipnr;
++ int autoplace = 0, numpages, totalpages;
++ struct nand_chip *this = mtd->priv;
++ u_char *oobbuf, *bufstart;
++ int ppblock = (1 << (this->phys_erase_shift - this->page_shift));
++
++ DEBUG (MTD_DEBUG_LEVEL3, "nand_write_ecc: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
++
++ /* Initialize retlen, in case of early exit */
++ *retlen = 0;
++
++ /* Do not allow write past end of device */
++ if ((to + len) > mtd->size) {
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: Attempt to write past end of page\n");
++ return -EINVAL;
++ }
++
++ /* reject writes, which are not page aligned */
++ if (NOTALIGNED (to) || NOTALIGNED(len)) {
++ puts ("nand_write_ecc: Attempt to write not page aligned data\r\n");
++ return -EINVAL;
++ }
++
++ /* Grab the lock and see if the device is available */
++ nand_get_device (this, mtd, FL_WRITING);
++
++ /* Calculate chipnr */
++ chipnr = (int)(to >> this->chip_shift);
++ /* Select the NAND device */
++ this->select_chip(mtd, chipnr);
++
++ /* Check, if it is write protected */
++ if (nand_check_wp(mtd))
++ goto out;
++
++ /* if oobsel is NULL, use chip defaults */
++ if (oobsel == NULL)
++ oobsel = &mtd->oobinfo;
++
++ /* Autoplace of oob data ? Use the default placement scheme */
++ if (oobsel->useecc == MTD_NANDECC_AUTOPLACE) {
++ oobsel = this->autooob;
++ autoplace = 1;
++ }
++ if (oobsel->useecc == MTD_NANDECC_AUTOPL_USR)
++ autoplace = 1;
++
++ /* Setup variables and oob buffer */
++ totalpages = len >> this->page_shift;
++ page = (int) (to >> this->page_shift);
++ /* Invalidate the page cache, if we write to the cached page */
++ if (page <= this->pagebuf && this->pagebuf < (page + totalpages))
++ this->pagebuf = -1;
++
++ /* Set it relative to chip */
++ page &= this->pagemask;
++ startpage = page;
++ /* Calc number of pages we can write in one go */
++ numpages = min (ppblock - (startpage & (ppblock - 1)), totalpages);
++ oobbuf = nand_prepare_oobbuf (mtd, eccbuf, oobsel, autoplace, numpages);
++ bufstart = (u_char *)buf;
++
++ /* Loop until all data is written */
++ while (written < len) {
++
++ this->data_poi = (u_char*) &buf[written];
++ /* Write one page. If this is the last page to write
++ * or the last page in this block, then use the
++ * real pageprogram command, else select cached programming
++ * if supported by the chip.
++ */
++ ret = nand_write_page (mtd, this, page, &oobbuf[oob], oobsel, (--numpages > 0));
++ if (ret) {
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: write_page failed %d\n", ret);
++ goto out;
++ }
++ /* Next oob page */
++ oob += mtd->oobsize;
++ /* Update written bytes count */
++ written += mtd->oobblock;
++ if (written == len)
++ goto cmp;
++
++ /* Increment page address */
++ page++;
++
++ /* Have we hit a block boundary ? Then we have to verify and
++ * if verify is ok, we have to setup the oob buffer for
++ * the next pages.
++ */
++ if (!(page & (ppblock - 1))){
++ int ofs;
++ this->data_poi = bufstart;
++ ret = nand_verify_pages (mtd, this, startpage,
++ page - startpage,
++ oobbuf, oobsel, chipnr, (eccbuf != NULL));
++ if (ret) {
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: verify_pages failed %d\n", ret);
++ goto out;
++ }
++ *retlen = written;
++
++ ofs = autoplace ? mtd->oobavail : mtd->oobsize;
++ if (eccbuf)
++ eccbuf += (page - startpage) * ofs;
++ totalpages -= page - startpage;
++ numpages = min (totalpages, ppblock);
++ page &= this->pagemask;
++ startpage = page;
++ oobbuf = nand_prepare_oobbuf (mtd, eccbuf, oobsel,
++ autoplace, numpages);
++ oob = 0;
++ /* Check, if we cross a chip boundary */
++ if (!page) {
++ chipnr++;
++ this->select_chip(mtd, -1);
++ this->select_chip(mtd, chipnr);
++ }
++ }
++ }
++ /* Verify the remaining pages */
++cmp:
++ this->data_poi = bufstart;
++ ret = nand_verify_pages (mtd, this, startpage, totalpages,
++ oobbuf, oobsel, chipnr, (eccbuf != NULL));
++ if (!ret)
++ *retlen = written;
++ else
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: verify_pages failed %d\n", ret);
++
++out:
++ /* Deselect and wake up anyone waiting on the device */
++ nand_release_device(mtd);
++
++ return ret;
++}
++#endif
++
++
++/**
++ * nand_write_oob - [MTD Interface] NAND write out-of-band
++ * @mtd: MTD device structure
++ * @to: offset to write to
++ * @len: number of bytes to write
++ * @retlen: pointer to variable to store the number of written bytes
++ * @buf: the data to write
++ *
++ * NAND write out-of-band
++ */
++#if NAND_WRITE_SUPPORT
++static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char * buf)
++{
++ int column, page, status, ret = -EIO, chipnr;
++ struct nand_chip *this = mtd->priv;
++
++ DEBUG (MTD_DEBUG_LEVEL3, "nand_write_oob: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
++
++ /* Shift to get page */
++ page = (int) (to >> this->page_shift);
++ chipnr = (int) (to >> this->chip_shift);
++
++ /* Mask to get column */
++ column = to & (mtd->oobsize - 1);
++
++ /* Initialize return length value */
++ *retlen = 0;
++
++ /* Do not allow write past end of page */
++ if ((column + len) > mtd->oobsize) {
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: Attempt to write past end of page\n");
++ return -EINVAL;
++ }
++
++ /* Grab the lock and see if the device is available */
++ nand_get_device (this, mtd, FL_WRITING);
++
++ /* Select the NAND device */
++ this->select_chip(mtd, chipnr);
++
++ /* Reset the chip. Some chips (like the Toshiba TC5832DC found
++ in one of my DiskOnChip 2000 test units) will clear the whole
++ data page too if we don't do this. I have no clue why, but
++ I seem to have 'fixed' it in the doc2000 driver in
++ August 1999. dwmw2. */
++ this->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
++
++ /* Check, if it is write protected */
++ if (nand_check_wp(mtd))
++ goto out;
++
++ /* Invalidate the page cache, if we write to the cached page */
++ if (page == this->pagebuf)
++ this->pagebuf = -1;
++
++ if (NAND_MUST_PAD(this)) {
++ /* Write out desired data */
++ this->cmdfunc (mtd, NAND_CMD_SEQIN, mtd->oobblock, page & this->pagemask);
++ /* prepad 0xff for partial programming */
++ this->write_buf(mtd, ffchars, column);
++ /* write data */
++ this->write_buf(mtd, buf, len);
++ /* postpad 0xff for partial programming */
++ this->write_buf(mtd, ffchars, mtd->oobsize - (len+column));
++ } else {
++ /* Write out desired data */
++ this->cmdfunc (mtd, NAND_CMD_SEQIN, mtd->oobblock + column, page & this->pagemask);
++ /* write data */
++ this->write_buf(mtd, buf, len);
++ }
++ /* Send command to program the OOB data */
++ this->cmdfunc (mtd, NAND_CMD_PAGEPROG, -1, -1);
++
++ status = this->waitfunc (mtd, this, FL_WRITING);
++
++ /* See if device thinks it succeeded */
++ if (status & NAND_STATUS_FAIL) {
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: " "Failed write, page 0x%08x\n", page);
++ ret = -EIO;
++ goto out;
++ }
++ /* Return happy */
++ *retlen = len;
++
++#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
++ /* Send command to read back the data */
++ this->cmdfunc (mtd, NAND_CMD_READOOB, column, page & this->pagemask);
++
++ if (this->verify_buf(mtd, buf, len)) {
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: " "Failed write verify, page 0x%08x\n", page);
++ ret = -EIO;
++ goto out;
++ }
++#endif
++ ret = 0;
++out:
++ /* Deselect and wake up anyone waiting on the device */
++ nand_release_device(mtd);
++
++ return ret;
++}
++#endif
++
++
++/**
++ * nand_writev - [MTD Interface] compabilty function for nand_writev_ecc
++ * @mtd: MTD device structure
++ * @vecs: the iovectors to write
++ * @count: number of vectors
++ * @to: offset to write to
++ * @retlen: pointer to variable to store the number of written bytes
++ *
++ * NAND write with kvec. This just calls the ecc function
++ */
++#if NAND_KVEC_SUPPORT
++#if NAND_WRITE_SUPPORT
++static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count,
++ loff_t to, size_t * retlen)
++{
++ return (nand_writev_ecc (mtd, vecs, count, to, retlen, NULL, NULL));
++}
++#endif
++#endif
++
++/**
++ * nand_writev_ecc - [MTD Interface] write with iovec with ecc
++ * @mtd: MTD device structure
++ * @vecs: the iovectors to write
++ * @count: number of vectors
++ * @to: offset to write to
++ * @retlen: pointer to variable to store the number of written bytes
++ * @eccbuf: filesystem supplied oob data buffer
++ * @oobsel: oob selection structure
++ *
++ * NAND write with iovec with ecc
++ */
++#if NAND_KVEC_SUPPORT
++#if NAND_WRITE_SUPPORT
++static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count,
++ loff_t to, size_t * retlen, u_char *eccbuf, struct nand_oobinfo *oobsel)
++{
++ int i, page, len, total_len, ret = -EIO, written = 0, chipnr;
++ int oob, numpages, autoplace = 0, startpage;
++ struct nand_chip *this = mtd->priv;
++ int ppblock = (1 << (this->phys_erase_shift - this->page_shift));
++ u_char *oobbuf, *bufstart;
++
++ /* Preset written len for early exit */
++ *retlen = 0;
++
++ /* Calculate total length of data */
++ total_len = 0;
++ for (i = 0; i < count; i++)
++ total_len += (int) vecs[i].iov_len;
++
++ DEBUG (MTD_DEBUG_LEVEL3,
++ "nand_writev: to = 0x%08x, len = %i, count = %ld\n", (unsigned int) to, (unsigned int) total_len, count);
++
++ /* Do not allow write past end of page */
++ if ((to + total_len) > mtd->size) {
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_writev: Attempted write past end of device\n");
++ return -EINVAL;
++ }
++
++ /* reject writes, which are not page aligned */
++ if (NOTALIGNED (to) || NOTALIGNED(total_len)) {
++ puts ("nand_write_ecc: Attempt to write not page aligned data\r\n");
++ return -EINVAL;
++ }
++
++ /* Grab the lock and see if the device is available */
++ nand_get_device (this, mtd, FL_WRITING);
++
++ /* Get the current chip-nr */
++ chipnr = (int) (to >> this->chip_shift);
++ /* Select the NAND device */
++ this->select_chip(mtd, chipnr);
++
++ /* Check, if it is write protected */
++ if (nand_check_wp(mtd))
++ goto out;
++
++ /* if oobsel is NULL, use chip defaults */
++ if (oobsel == NULL)
++ oobsel = &mtd->oobinfo;
++
++ /* Autoplace of oob data ? Use the default placement scheme */
++ if (oobsel->useecc == MTD_NANDECC_AUTOPLACE) {
++ oobsel = this->autooob;
++ autoplace = 1;
++ }
++ if (oobsel->useecc == MTD_NANDECC_AUTOPL_USR)
++ autoplace = 1;
++
++ /* Setup start page */
++ page = (int) (to >> this->page_shift);
++ /* Invalidate the page cache, if we write to the cached page */
++ if (page <= this->pagebuf && this->pagebuf < ((to + total_len) >> this->page_shift))
++ this->pagebuf = -1;
++
++ startpage = page & this->pagemask;
++
++ /* Loop until all kvec' data has been written */
++ len = 0;
++ while (count) {
++ /* If the given tuple is >= pagesize then
++ * write it out from the iov
++ */
++ if ((vecs->iov_len - len) >= mtd->oobblock) {
++ /* Calc number of pages we can write
++ * out of this iov in one go */
++ numpages = (vecs->iov_len - len) >> this->page_shift;
++ /* Do not cross block boundaries */
++ numpages = min (ppblock - (startpage & (ppblock - 1)), numpages);
++ oobbuf = nand_prepare_oobbuf (mtd, NULL, oobsel, autoplace, numpages);
++ bufstart = (u_char *)vecs->iov_base;
++ bufstart += len;
++ this->data_poi = bufstart;
++ oob = 0;
++ for (i = 1; i <= numpages; i++) {
++ /* Write one page. If this is the last page to write
++ * then use the real pageprogram command, else select
++ * cached programming if supported by the chip.
++ */
++ ret = nand_write_page (mtd, this, page & this->pagemask,
++ &oobbuf[oob], oobsel, i != numpages);
++ if (ret)
++ goto out;
++ this->data_poi += mtd->oobblock;
++ len += mtd->oobblock;
++ oob += mtd->oobsize;
++ page++;
++ }
++ /* Check, if we have to switch to the next tuple */
++ if (len >= (int) vecs->iov_len) {
++ vecs++;
++ len = 0;
++ count--;
++ }
++ } else {
++ /* We must use the internal buffer, read data out of each
++ * tuple until we have a full page to write
++ */
++ int cnt = 0;
++ while (cnt < mtd->oobblock) {
++ if (vecs->iov_base != NULL && vecs->iov_len)
++ this->data_buf[cnt++] = ((u_char *) vecs->iov_base)[len++];
++ /* Check, if we have to switch to the next tuple */
++ if (len >= (int) vecs->iov_len) {
++ vecs++;
++ len = 0;
++ count--;
++ }
++ }
++ this->pagebuf = page;
++ this->data_poi = this->data_buf;
++ bufstart = this->data_poi;
++ numpages = 1;
++ oobbuf = nand_prepare_oobbuf (mtd, NULL, oobsel, autoplace, numpages);
++ ret = nand_write_page (mtd, this, page & this->pagemask,
++ oobbuf, oobsel, 0);
++ if (ret)
++ goto out;
++ page++;
++ }
++
++ this->data_poi = bufstart;
++ ret = nand_verify_pages (mtd, this, startpage, numpages, oobbuf, oobsel, chipnr, 0);
++ if (ret)
++ goto out;
++
++ written += mtd->oobblock * numpages;
++ /* All done ? */
++ if (!count)
++ break;
++
++ startpage = page & this->pagemask;
++ /* Check, if we cross a chip boundary */
++ if (!startpage) {
++ chipnr++;
++ this->select_chip(mtd, -1);
++ this->select_chip(mtd, chipnr);
++ }
++ }
++ ret = 0;
++out:
++ /* Deselect and wake up anyone waiting on the device */
++ nand_release_device(mtd);
++
++ *retlen = written;
++ return ret;
++}
++#endif
++#endif
++
++/**
++ * single_erease_cmd - [GENERIC] NAND standard block erase command function
++ * @mtd: MTD device structure
++ * @page: the page address of the block which will be erased
++ *
++ * Standard erase command for NAND chips
++ */
++#if NAND_ERASE_SUPPORT
++static void single_erase_cmd (struct mtd_info *mtd, int page)
++{
++ struct nand_chip *this = mtd->priv;
++ /* Send commands to erase a block */
++ this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page);
++ this->cmdfunc (mtd, NAND_CMD_ERASE2, -1, -1);
++}
++#endif
++
++/**
++ * multi_erease_cmd - [GENERIC] AND specific block erase command function
++ * @mtd: MTD device structure
++ * @page: the page address of the block which will be erased
++ *
++ * AND multi block erase command function
++ * Erase 4 consecutive blocks
++ */
++#if NAND_ERASE_SUPPORT
++static void multi_erase_cmd (struct mtd_info *mtd, int page)
++{
++ struct nand_chip *this = mtd->priv;
++ /* Send commands to erase a block */
++ this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page++);
++ this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page++);
++ this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page++);
++ this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page);
++ this->cmdfunc (mtd, NAND_CMD_ERASE2, -1, -1);
++}
++#endif
++
++/**
++ * nand_erase - [MTD Interface] erase block(s)
++ * @mtd: MTD device structure
++ * @instr: erase instruction
++ *
++ * Erase one ore more blocks
++ */
++#if NAND_ERASE_SUPPORT
++static int nand_erase (struct mtd_info *mtd, struct erase_info *instr)
++{
++ return nand_erase_nand (mtd, instr, 0);
++}
++#endif
++
++#define BBT_PAGE_MASK 0xffffff3f
++/**
++ * nand_erase_intern - [NAND Interface] erase block(s)
++ * @mtd: MTD device structure
++ * @instr: erase instruction
++ * @allowbbt: allow erasing the bbt area
++ *
++ * Erase one ore more blocks
++ */
++#if NAND_ERASE_SUPPORT
++int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbbt)
++{
++ int page, len, status, pages_per_block, ret, chipnr;
++ struct nand_chip *this = mtd->priv;
++ int rewrite_bbt[NAND_MAX_CHIPS]={0}; /* flags to indicate the page, if bbt needs to be rewritten. */
++ unsigned int bbt_masked_page; /* bbt mask to compare to page being erased. */
++ /* It is used to see if the current page is in the same */
++ /* 256 block group and the same bank as the bbt. */
++
++ DEBUG (MTD_DEBUG_LEVEL3,
++ "nand_erase: start = 0x%08x, len = %i\n", (unsigned int) instr->addr, (unsigned int) instr->len);
++
++ /* Start address must align on block boundary */
++ if (instr->addr & ((1 << this->phys_erase_shift) - 1)) {
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: Unaligned address\n");
++ return -EINVAL;
++ }
++
++ /* Length must align on block boundary */
++ if (instr->len & ((1 << this->phys_erase_shift) - 1)) {
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: Length not block aligned\n");
++ return -EINVAL;
++ }
++
++ /* Do not allow erase past end of device */
++ if ((instr->len + instr->addr) > mtd->size) {
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: Erase past end of device\n");
++ return -EINVAL;
++ }
++
++ instr->fail_addr = 0xffffffff;
++
++ /* Grab the lock and see if the device is available */
++ nand_get_device (this, mtd, FL_ERASING);
++
++ /* Shift to get first page */
++ page = (int) (instr->addr >> this->page_shift);
++ chipnr = (int) (instr->addr >> this->chip_shift);
++
++ /* Calculate pages in each block */
++ pages_per_block = 1 << (this->phys_erase_shift - this->page_shift);
++
++ /* Select the NAND device */
++ this->select_chip(mtd, chipnr);
++
++ /* Check the WP bit */
++ /* Check, if it is write protected */
++ if (nand_check_wp(mtd)) {
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: Device is write protected!!!\n");
++ instr->state = MTD_ERASE_FAILED;
++ goto erase_exit;
++ }
++
++ /* if BBT requires refresh, set the BBT page mask to see if the BBT should be rewritten */
++ if (this->options & BBT_AUTO_REFRESH) {
++ bbt_masked_page = this->bbt_td->pages[chipnr] & BBT_PAGE_MASK;
++ } else {
++ bbt_masked_page = 0xffffffff; /* should not match anything */
++ }
++
++ /* Loop through the pages */
++ len = instr->len;
++
++ instr->state = MTD_ERASING;
++
++ while (len) {
++ /* Check if we have a bad block, we do not erase bad blocks ! */
++ if (nand_block_checkbad(mtd, ((loff_t) page) << this->page_shift, 0, allowbbt)) {
++ puts ("nand_erase: attempt to erase a bad block at page ");
++ putx (page);
++ putnl ();
++ instr->state = MTD_ERASE_FAILED;
++ goto erase_exit;
++ }
++
++ /* Invalidate the page cache, if we erase the block which contains
++ the current cached page */
++ if (page <= this->pagebuf && this->pagebuf < (page + pages_per_block))
++ this->pagebuf = -1;
++
++ this->erase_cmd (mtd, page & this->pagemask);
++
++ status = this->waitfunc (mtd, this, FL_ERASING);
++
++ /* See if operation failed and additional status checks are available */
++ if ((status & NAND_STATUS_FAIL) && (this->errstat)) {
++ status = this->errstat(mtd, this, FL_ERASING, status, page);
++ }
++
++ /* See if block erase succeeded */
++ if (status & NAND_STATUS_FAIL) {
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: " "Failed erase, page 0x%08x\n", page);
++ instr->state = MTD_ERASE_FAILED;
++ instr->fail_addr = (page << this->page_shift);
++ goto erase_exit;
++ }
++
++ /* if BBT requires refresh, set the BBT rewrite flag to the page being erased */
++ if (this->options & BBT_AUTO_REFRESH) {
++ if (((page & BBT_PAGE_MASK) == bbt_masked_page) &&
++ (page != this->bbt_td->pages[chipnr])) {
++ rewrite_bbt[chipnr] = (page << this->page_shift);
++ }
++ }
++
++ /* Increment page address and decrement length */
++ len -= (1 << this->phys_erase_shift);
++ page += pages_per_block;
++
++ /* Check, if we cross a chip boundary */
++ if (len && !(page & this->pagemask)) {
++ chipnr++;
++ this->select_chip(mtd, -1);
++ this->select_chip(mtd, chipnr);
++
++ /* if BBT requires refresh and BBT-PERCHIP,
++ * set the BBT page mask to see if this BBT should be rewritten */
++ if ((this->options & BBT_AUTO_REFRESH) && (this->bbt_td->options & NAND_BBT_PERCHIP)) {
++ bbt_masked_page = this->bbt_td->pages[chipnr] & BBT_PAGE_MASK;
++ }
++
++ }
++ }
++ instr->state = MTD_ERASE_DONE;
++
++erase_exit:
++
++ ret = instr->state == MTD_ERASE_DONE ? 0 : -EIO;
++#if 0
++ /* Do call back function */
++ if (!ret)
++ mtd_erase_callback(instr);
++#endif
++
++ /* Deselect and wake up anyone waiting on the device */
++ nand_release_device(mtd);
++
++#if NAND_BBT_SUPPORT
++ /* if BBT requires refresh and erase was successful, rewrite any selected bad block tables */
++ if ((this->options & BBT_AUTO_REFRESH) && (!ret)) {
++ for (chipnr = 0; chipnr < this->numchips; chipnr++) {
++ if (rewrite_bbt[chipnr]) {
++ /* update the BBT for chip */
++ DEBUG (MTD_DEBUG_LEVEL0, "nand_erase_nand: nand_update_bbt (%d:0x%0x 0x%0x)\n",
++ chipnr, rewrite_bbt[chipnr], this->bbt_td->pages[chipnr]);
++ nand_update_bbt (mtd, rewrite_bbt[chipnr]);
++ }
++ }
++ }
++#endif
++
++ /* Return more or less happy */
++ return ret;
++}
++#endif
++
++/**
++ * nand_sync - [MTD Interface] sync
++ * @mtd: MTD device structure
++ *
++ * Sync is actually a wait for chip ready function
++ */
++#if 0 /* not needed */
++static void nand_sync (struct mtd_info *mtd)
++{
++ struct nand_chip *this = mtd->priv;
++
++ DEBUG (MTD_DEBUG_LEVEL3, "nand_sync: called\n");
++
++ /* Grab the lock and see if the device is available */
++ nand_get_device (this, mtd, FL_SYNCING);
++ /* Release it and go back */
++ nand_release_device (mtd);
++}
++#endif
++
++
++/**
++ * nand_block_isbad - [MTD Interface] Check whether the block at the given offset is bad
++ * @mtd: MTD device structure
++ * @ofs: offset relative to mtd start
++ */
++static int nand_block_isbad (struct mtd_info *mtd, loff_t ofs)
++{
++ /* Check for invalid offset */
++ if (ofs > mtd->size)
++ return -EINVAL;
++
++ return nand_block_checkbad (mtd, ofs, 1, 0);
++}
++
++/**
++ * nand_block_markbad - [MTD Interface] Mark the block at the given offset as bad
++ * @mtd: MTD device structure
++ * @ofs: offset relative to mtd start
++ */
++#if NAND_WRITE_SUPPORT
++static int nand_block_markbad (struct mtd_info *mtd, loff_t ofs)
++{
++ struct nand_chip *this = mtd->priv;
++ int ret;
++
++ if ((ret = nand_block_isbad(mtd, ofs))) {
++ /* If it was bad already, return success and do nothing. */
++ if (ret > 0)
++ return 0;
++ return ret;
++ }
++
++ return this->block_markbad(mtd, ofs);
++}
++#endif
++
++/**
++ * nand_suspend - [MTD Interface] Suspend the NAND flash
++ * @mtd: MTD device structure
++ */
++#if 0 /* don't need it */
++static int nand_suspend(struct mtd_info *mtd)
++{
++ struct nand_chip *this = mtd->priv;
++
++ return nand_get_device (this, mtd, FL_PM_SUSPENDED);
++}
++#endif
++
++/**
++ * nand_resume - [MTD Interface] Resume the NAND flash
++ * @mtd: MTD device structure
++ */
++#if 0 /* don't need it */
++static void nand_resume(struct mtd_info *mtd)
++{
++ struct nand_chip *this = mtd->priv;
++
++ if (this->state == FL_PM_SUSPENDED)
++ nand_release_device(mtd);
++ else
++ puts("resume() called for the chip which is not in suspended state\n");
++
++}
++#endif
++
++
++/**
++ * nand_scan - [NAND Interface] Scan for the NAND device
++ * @mtd: MTD device structure
++ * @maxchips: Number of chips to scan for
++ *
++ * This fills out all the not initialized function pointers
++ * with the defaults.
++ * The flash ID is read and the mtd/chip structures are
++ * filled with the appropriate values. Buffers are allocated if
++ * they are not provided by the board driver
++ *
++ */
++int nand_scan (struct mtd_info *mtd, int maxchips)
++{
++ int i, nand_maf_id, nand_dev_id, busw, maf_id;
++ struct nand_chip *this = mtd->priv;
++
++ /* Get buswidth to select the correct functions*/
++ busw = this->options & NAND_BUSWIDTH_16;
++
++ /* check for proper chip_delay setup, set 20us if not */
++ if (!this->chip_delay)
++ this->chip_delay = 20;
++
++ /* check, if a user supplied command function given */
++ if (this->cmdfunc == NULL)
++ this->cmdfunc = nand_command;
++
++ /* check, if a user supplied wait function given */
++ if (this->waitfunc == NULL)
++ this->waitfunc = nand_wait;
++
++ if (!this->select_chip)
++ this->select_chip = nand_select_chip;
++ if (!this->write_byte)
++ this->write_byte = busw ? nand_write_byte16 : nand_write_byte;
++ if (!this->read_byte)
++ this->read_byte = busw ? nand_read_byte16 : nand_read_byte;
++ if (!this->write_word)
++ this->write_word = nand_write_word;
++ if (!this->read_word)
++ this->read_word = nand_read_word;
++ if (!this->block_bad)
++ this->block_bad = nand_block_bad;
++#if NAND_WRITE_SUPPORT
++ if (!this->block_markbad)
++ this->block_markbad = nand_default_block_markbad;
++#endif
++ if (!this->write_buf)
++ this->write_buf = busw ? nand_write_buf16 : nand_write_buf;
++ if (!this->read_buf)
++ this->read_buf = busw ? nand_read_buf16 : nand_read_buf;
++ if (!this->verify_buf)
++ this->verify_buf = busw ? nand_verify_buf16 : nand_verify_buf;
++#if NAND_BBT_SUPPORT
++ if (!this->scan_bbt)
++ this->scan_bbt = nand_default_bbt;
++#endif
++
++ /* Select the device */
++ this->select_chip(mtd, 0);
++
++ /* Send the command for reading device ID */
++ this->cmdfunc (mtd, NAND_CMD_READID, 0x00, -1);
++
++ /* Read manufacturer and device IDs */
++ nand_maf_id = this->read_byte(mtd);
++ nand_dev_id = this->read_byte(mtd);
++
++ /* Print and store flash device information */
++ for (i = 0; nand_flash_ids[i].name != NULL; i++) {
++
++ if (nand_dev_id != nand_flash_ids[i].id)
++ continue;
++
++ if (!mtd->name) mtd->name = nand_flash_ids[i].name;
++ this->chipsize = nand_flash_ids[i].chipsize << 20;
++
++ /* New devices have all the information in additional id bytes */
++ if (!nand_flash_ids[i].pagesize) {
++ int extid;
++ /* The 3rd id byte contains non relevant data ATM */
++ extid = this->read_byte(mtd);
++ /* The 4th id byte is the important one */
++ extid = this->read_byte(mtd);
++ /* Calc pagesize */
++ mtd->oobblock = 1024 << (extid & 0x3);
++ extid >>= 2;
++ /* Calc oobsize */
++ mtd->oobsize = (8 << (extid & 0x01)) * (mtd->oobblock >> 9);
++ extid >>= 2;
++ /* Calc blocksize. Blocksize is multiples of 64KiB */
++ mtd->erasesize = (64 * 1024) << (extid & 0x03);
++ extid >>= 2;
++ /* Get buswidth information */
++ busw = (extid & 0x01) ? NAND_BUSWIDTH_16 : 0;
++
++ } else {
++ /* Old devices have this data hardcoded in the
++ * device id table */
++ mtd->erasesize = nand_flash_ids[i].erasesize;
++ mtd->oobblock = nand_flash_ids[i].pagesize;
++ mtd->oobsize = mtd->oobblock / 32;
++ busw = nand_flash_ids[i].options & NAND_BUSWIDTH_16;
++ }
++
++ /* Try to identify manufacturer */
++ for (maf_id = 0; nand_manuf_ids[maf_id].id != 0x0; maf_id++) {
++ if (nand_manuf_ids[maf_id].id == nand_maf_id)
++ break;
++ }
++
++ /* Check, if buswidth is correct. Hardware drivers should set
++ * this correct ! */
++ if (busw != (this->options & NAND_BUSWIDTH_16)) {
++#if 0
++ puts ("Manufacturer ID: ");
++ putx (nand_maf_id);
++ puts (", Chip ID: ");
++ putx (nand_dev_id);
++ puts (" (");
++ puts (nand_manuf_ids[maf_id].name);
++ putc (' ');
++ puts (mtd->name);
++ puts (")\r\n");
++#endif
++ puts ("Expected NAND bus width ");
++ putx ((this->options & NAND_BUSWIDTH_16) ? 16 : 8);
++ puts (",found ");
++ putx (busw ? 16 : 8);
++ putnl();
++ this->select_chip(mtd, -1);
++ return 1;
++ }
++
++ /* Calculate the address shift from the page size */
++ this->page_shift = ffs(mtd->oobblock) - 1;
++ this->bbt_erase_shift = this->phys_erase_shift = ffs(mtd->erasesize) - 1;
++ this->chip_shift = ffs(this->chipsize) - 1;
++
++ /* Set the bad block position */
++ this->badblockpos = mtd->oobblock > 512 ?
++ NAND_LARGE_BADBLOCK_POS : NAND_SMALL_BADBLOCK_POS;
++
++ /* Get chip options, preserve non chip based options */
++ this->options &= ~NAND_CHIPOPTIONS_MSK;
++ this->options |= nand_flash_ids[i].options & NAND_CHIPOPTIONS_MSK;
++ /* Set this as a default. Board drivers can override it, if neccecary */
++ this->options |= NAND_NO_AUTOINCR;
++ /* Check if this is a not a samsung device. Do not clear the options
++ * for chips which are not having an extended id.
++ */
++ if (nand_maf_id != NAND_MFR_SAMSUNG && !nand_flash_ids[i].pagesize)
++ this->options &= ~NAND_SAMSUNG_LP_OPTIONS;
++
++#if NAND_ERASE_SUPPORT
++ /* Check for AND chips with 4 page planes */
++ if (this->options & NAND_4PAGE_ARRAY)
++ this->erase_cmd = multi_erase_cmd;
++ else
++ this->erase_cmd = single_erase_cmd;
++#endif
++
++ /* Do not replace user supplied command function ! */
++ if (mtd->oobblock > 512 && this->cmdfunc == nand_command)
++ this->cmdfunc = nand_command_lp;
++
++ puts ("Manufacturer ID / Chip ID: ");
++ putx (nand_maf_id << 8 | nand_dev_id);
++ puts (" (");
++ puts (nand_manuf_ids[maf_id].name);
++ putc (' ');
++ puts (nand_flash_ids[i].name);
++ puts (")\r\n");
++ break;
++ }
++
++ if (!nand_flash_ids[i].name) {
++ puts ("No NAND device found!!!\r\n");
++ this->select_chip(mtd, -1);
++ return 1;
++ }
++
++#if NAND_MULTICHIP_SUPPORT
++ for (i=1; i < maxchips; i++) {
++ this->select_chip(mtd, i);
++
++ /* Send the command for reading device ID */
++ this->cmdfunc (mtd, NAND_CMD_READID, 0x00, -1);
++
++ /* Read manufacturer and device IDs */
++ if (nand_maf_id != this->read_byte(mtd) ||
++ nand_dev_id != this->read_byte(mtd))
++ break;
++ }
++ if (i > 1) {
++ putx (i);
++ puts (" NAND chips detected\r\n");
++ }
++#endif
++
++ /* Allocate buffers, if neccecary */
++ if (!this->oob_buf) {
++ size_t len;
++ len = mtd->oobsize << (this->phys_erase_shift - this->page_shift);
++ this->oob_buf = malloc (len);
++ if (!this->oob_buf) {
++ puts ("nand_scan(): Cannot allocate oob_buf\r\n");
++ return -ENOMEM;
++ }
++ this->options |= NAND_OOBBUF_ALLOC;
++ }
++
++ if (!this->data_buf) {
++ size_t len;
++ len = mtd->oobblock + mtd->oobsize;
++ this->data_buf = malloc (len);
++ if (!this->data_buf) {
++ if (this->options & NAND_OOBBUF_ALLOC)
++ free (this->oob_buf);
++ puts ("nand_scan(): Cannot allocate data_buf\r\n");
++ return -ENOMEM;
++ }
++ this->options |= NAND_DATABUF_ALLOC;
++ }
++
++#if NAND_MULTICHIP_SUPP0RT
++ /* Store the number of chips and calc total size for mtd */
++ this->numchips = i;
++ mtd->size = i * this->chipsize;
++#else
++ /* Store the number of chips and calc total size for mtd */
++ this->numchips = 1;
++ mtd->size = this->chipsize;
++#endif
++
++ /* Convert chipsize to number of pages per chip -1. */
++ this->pagemask = (this->chipsize >> this->page_shift) - 1;
++ /* Preset the internal oob buffer */
++ memset(this->oob_buf, 0xff, mtd->oobsize << (this->phys_erase_shift - this->page_shift));
++
++ /* If no default placement scheme is given, select an
++ * appropriate one */
++ if (!this->autooob) {
++ /* Select the appropriate default oob placement scheme for
++ * placement agnostic filesystems */
++ switch (mtd->oobsize) {
++ case 8:
++ this->autooob = &nand_oob_8;
++ break;
++ case 16:
++ this->autooob = &nand_oob_16;
++ break;
++ case 64:
++ this->autooob = &nand_oob_64;
++ break;
++ default:
++ puts ("No oob scheme defined for oobsize ");
++ putx (mtd->oobsize);
++ putnl ();
++ BUG();
++ }
++ }
++
++ /* The number of bytes available for the filesystem to place fs dependend
++ * oob data */
++ mtd->oobavail = 0;
++ for (i = 0; this->autooob->oobfree[i][1]; i++)
++ mtd->oobavail += this->autooob->oobfree[i][1];
++
++ /*
++ * check ECC mode, default to software
++ * if 3byte/512byte hardware ECC is selected and we have 256 byte pagesize
++ * fallback to software ECC
++ */
++ this->eccsize = 256; /* set default eccsize */
++ this->eccbytes = 3;
++
++ switch (this->eccmode) {
++#if NAND_HWECC_SUPPORT
++ case NAND_ECC_HW12_2048:
++ if (mtd->oobblock < 2048) {
++ puts ("2048 byte HW ECC not possible on ");
++ putx (mtd->oobblock);
++ puts (" byte page size, fallback to SW ECC\r\n");
++ this->eccmode = NAND_ECC_SOFT;
++ this->calculate_ecc = nand_calculate_ecc;
++ this->correct_data = nand_correct_data;
++ } else
++ this->eccsize = 2048;
++ break;
++
++ case NAND_ECC_HW3_512:
++ case NAND_ECC_HW6_512:
++ case NAND_ECC_HW8_512:
++ if (mtd->oobblock == 256) {
++ puts ("512 byte HW ECC not possible on 256 Byte pagesize, fallback to SW ECC\r\n");
++ this->eccmode = NAND_ECC_SOFT;
++ this->calculate_ecc = nand_calculate_ecc;
++ this->correct_data = nand_correct_data;
++ } else
++ this->eccsize = 512; /* set eccsize to 512 */
++ break;
++
++ case NAND_ECC_HW3_256:
++ break;
++#endif
++
++ case NAND_ECC_NONE:
++ puts ("NAND_ECC_NONE selected by board driver. This is not recommended !!\r\n");
++ this->eccmode = NAND_ECC_NONE;
++ break;
++
++ case NAND_ECC_SOFT:
++ this->calculate_ecc = nand_calculate_ecc;
++ this->correct_data = nand_correct_data;
++ break;
++
++ default:
++ puts ("Invalid NAND_ECC_MODE ");
++ putx (this->eccmode);
++ putnl ();
++ BUG();
++ }
++
++ /* Check hardware ecc function availability and adjust number of ecc bytes per
++ * calculation step
++ */
++ switch (this->eccmode) {
++ case NAND_ECC_HW12_2048:
++ this->eccbytes += 4;
++ case NAND_ECC_HW8_512:
++ this->eccbytes += 2;
++ case NAND_ECC_HW6_512:
++ this->eccbytes += 3;
++ case NAND_ECC_HW3_512:
++ case NAND_ECC_HW3_256:
++ if (this->calculate_ecc && this->correct_data && this->enable_hwecc)
++ break;
++ puts ("No ECC functions supplied, Hardware ECC not possible\r\n");
++ BUG();
++ }
++
++ mtd->eccsize = this->eccsize;
++
++ /* Set the number of read / write steps for one page to ensure ECC generation */
++ switch (this->eccmode) {
++ case NAND_ECC_HW12_2048:
++ this->eccsteps = mtd->oobblock / 2048;
++ break;
++ case NAND_ECC_HW3_512:
++ case NAND_ECC_HW6_512:
++ case NAND_ECC_HW8_512:
++ this->eccsteps = mtd->oobblock / 512;
++ break;
++ case NAND_ECC_HW3_256:
++ case NAND_ECC_SOFT:
++ this->eccsteps = mtd->oobblock / 256;
++ break;
++
++ case NAND_ECC_NONE:
++ this->eccsteps = 1;
++ break;
++ }
++
++ /* Initialize state, waitqueue and spinlock */
++ this->state = FL_READY;
++#if 0
++ init_waitqueue_head (&this->wq);
++ spin_lock_init (&this->chip_lock);
++#endif
++
++ /* De-select the device */
++ this->select_chip(mtd, -1);
++
++ /* Invalidate the pagebuffer reference */
++ this->pagebuf = -1;
++
++ /* Fill in remaining MTD driver data */
++ mtd->type = MTD_NANDFLASH;
++ mtd->flags = MTD_CAP_NANDFLASH | MTD_ECC;
++ mtd->ecctype = MTD_ECC_SW;
++#if NAND_ERASE_SUPPORT
++ mtd->erase = nand_erase;
++#endif
++#if 0 /* not needed */
++ mtd->point = NULL;
++ mtd->unpoint = NULL;
++#endif
++ mtd->read = nand_read;
++#if NAND_WRITE_SUPPORT
++ mtd->write = nand_write;
++#endif
++ mtd->read_ecc = nand_read_ecc;
++#if NAND_WRITE_SUPPORT
++ mtd->write_ecc = nand_write_ecc;
++#endif
++ mtd->read_oob = nand_read_oob;
++#if NAND_WRITE_SUPPORT
++ mtd->write_oob = nand_write_oob;
++#endif
++#if NAND_KVEC_SUPPORT
++ mtd->readv = NULL;
++#endif
++#if NAND_WRITE_SUPPORT && NAND_KVEC_SUPPORT
++ mtd->writev = nand_writev;
++ mtd->writev_ecc = nand_writev_ecc;
++#endif
++#if 0 /* not needed */
++ mtd->sync = nand_sync;
++ mtd->lock = NULL;
++ mtd->unlock = NULL;
++ mtd->suspend = nand_suspend;
++ mtd->resume = nand_resume;
++#endif
++ mtd->block_isbad = nand_block_isbad;
++#if NAND_WRITE_SUPPORT
++ mtd->block_markbad = nand_block_markbad;
++#endif
++
++ /* and make the autooob the default one */
++ memcpy(&mtd->oobinfo, this->autooob, sizeof(mtd->oobinfo));
++
++#ifdef THIS_MODULE /* normally isn't for us */
++ mtd->owner = THIS_MODULE;
++#endif
++
++ /* Check, if we should skip the bad block table scan */
++ if (this->options & NAND_SKIP_BBTSCAN)
++ return 0;
++
++#if NAND_BBT_SUPPORT
++ /* Build bad block table */
++ return this->scan_bbt (mtd);
++#else
++ return -1;
++#endif
++}
++
++/**
++ * nand_release - [NAND Interface] Free resources held by the NAND device
++ * @mtd: MTD device structure
++*/
++#if 0 /* don't need it */
++void nand_release (struct mtd_info *mtd)
++{
++ struct nand_chip *this = mtd->priv;
++
++#if 0
++#ifdef CONFIG_MTD_PARTITIONS
++ /* Deregister partitions */
++ del_mtd_partitions (mtd);
++#endif
++ /* Deregister the device */
++ del_mtd_device (mtd);
++#endif
++
++ /* Free bad block table memory */
++ free (this->bbt);
++ /* Buffer allocated by nand_scan ? */
++ if (this->options & NAND_OOBBUF_ALLOC)
++ free (this->oob_buf);
++ /* Buffer allocated by nand_scan ? */
++ if (this->options & NAND_DATABUF_ALLOC)
++ free (this->data_buf);
++}
++#endif
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/nand_bbt.c linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/nand_bbt.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/nand_bbt.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/nand_bbt.c 2006-11-10 09:55:58.000000000 +0100
+@@ -0,0 +1,1151 @@
++/*
++ * drivers/mtd/nand_bbt.c
++ *
++ * Overview:
++ * Bad block table support for the NAND driver
++ *
++ * Copyright (C) 2004 Thomas Gleixner (tglx@linutronix.de)
++ *
++ * $Id: nand_bbt.c,v 1.5 2006/11/10 08:55:58 ricardw Exp $
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ * Description:
++ *
++ * When nand_scan_bbt is called, then it tries to find the bad block table
++ * depending on the options in the bbt descriptor(s). If a bbt is found
++ * then the contents are read and the memory based bbt is created. If a
++ * mirrored bbt is selected then the mirror is searched too and the
++ * versions are compared. If the mirror has a greater version number
++ * than the mirror bbt is used to build the memory based bbt.
++ * If the tables are not versioned, then we "or" the bad block information.
++ * If one of the bbt's is out of date or does not exist it is (re)created.
++ * If no bbt exists at all then the device is scanned for factory marked
++ * good / bad blocks and the bad block tables are created.
++ *
++ * For manufacturer created bbts like the one found on M-SYS DOC devices
++ * the bbt is searched and read but never created
++ *
++ * The autogenerated bad block table is located in the last good blocks
++ * of the device. The table is mirrored, so it can be updated eventually.
++ * The table is marked in the oob area with an ident pattern and a version
++ * number which indicates which of both tables is more up to date.
++ *
++ * The table uses 2 bits per block
++ * 11b: block is good
++ * 00b: block is factory marked bad
++ * 01b, 10b: block is marked bad due to wear
++ *
++ * The memory bad block table uses the following scheme:
++ * 00b: block is good
++ * 01b: block is marked bad due to wear
++ * 10b: block is reserved (to protect the bbt area)
++ * 11b: block is factory marked bad
++ *
++ * Multichip devices like DOC store the bad block info per floor.
++ *
++ * Following assumptions are made:
++ * - bbts start at a page boundary, if autolocated on a block boundary
++ * - the space neccecary for a bbt in FLASH does not exceed a block boundary
++ *
++ */
++
++#if 0
++#include <linux/slab.h>
++#endif
++
++#include <linux/types.h>
++#include "mtd.h"
++#include "nand.h"
++#include "nand_ecc.h"
++
++#if 0
++#include <linux/mtd/compatmac.h>
++#include <linux/bitops.h>
++#endif
++
++#include <linux/delay.h>
++
++#include "lib.h"
++
++
++/**
++ * check_pattern - [GENERIC] check if a pattern is in the buffer
++ * @buf: the buffer to search
++ * @len: the length of buffer to search
++ * @paglen: the pagelength
++ * @td: search pattern descriptor
++ *
++ * Check for a pattern at the given place. Used to search bad block
++ * tables and good / bad block identifiers.
++ * If the SCAN_EMPTY option is set then check, if all bytes except the
++ * pattern area contain 0xff
++ *
++*/
++static int check_pattern (uint8_t *buf, int len, int paglen, struct nand_bbt_descr *td)
++{
++ int i, end = 0;
++ uint8_t *p = buf;
++
++ end = paglen + td->offs;
++ if (td->options & NAND_BBT_SCANEMPTY) {
++ for (i = 0; i < end; i++) {
++ if (p[i] != 0xff)
++ return -1;
++ }
++ }
++ p += end;
++
++ /* Compare the pattern */
++ for (i = 0; i < td->len; i++) {
++ if (p[i] != td->pattern[i])
++ return -1;
++ }
++
++ if (td->options & NAND_BBT_SCANEMPTY) {
++ p += td->len;
++ end += td->len;
++ for (i = end; i < len; i++) {
++ if (*p++ != 0xff)
++ return -1;
++ }
++ }
++ return 0;
++}
++
++/**
++ * check_short_pattern - [GENERIC] check if a pattern is in the buffer
++ * @buf: the buffer to search
++ * @td: search pattern descriptor
++ *
++ * Check for a pattern at the given place. Used to search bad block
++ * tables and good / bad block identifiers. Same as check_pattern, but
++ * no optional empty check
++ *
++*/
++static int check_short_pattern (uint8_t *buf, struct nand_bbt_descr *td)
++{
++ int i;
++ uint8_t *p = buf;
++
++ /* Compare the pattern */
++ for (i = 0; i < td->len; i++) {
++ if (p[td->offs + i] != td->pattern[i])
++ return -1;
++ }
++ return 0;
++}
++
++/**
++ * read_bbt - [GENERIC] Read the bad block table starting from page
++ * @mtd: MTD device structure
++ * @buf: temporary buffer
++ * @page: the starting page
++ * @num: the number of bbt descriptors to read
++ * @bits: number of bits per block
++ * @offs: offset in the memory table
++ * @reserved_block_code: Pattern to identify reserved blocks
++ *
++ * Read the bad block table starting from page.
++ *
++ */
++static int read_bbt (struct mtd_info *mtd, uint8_t *buf, int page, int num,
++ int bits, int offs, int reserved_block_code)
++{
++ int res, i, j, act = 0;
++ struct nand_chip *this = mtd->priv;
++ size_t retlen, len, totlen;
++ loff_t from;
++ uint8_t msk = (uint8_t) ((1 << bits) - 1);
++
++ totlen = (num * bits) >> 3;
++ from = ((loff_t)page) << this->page_shift;
++
++ while (totlen) {
++ len = min (totlen, (size_t) (1 << this->bbt_erase_shift));
++ res = mtd->read_ecc (mtd, from, len, &retlen, buf, NULL, this->autooob);
++ if (res < 0) {
++ if (retlen != len) {
++ puts ("nand_bbt: Error reading bad block table\n");
++ return res;
++ }
++ puts ("nand_bbt: ECC error while reading bad block table\n");
++ }
++
++ /* Analyse data */
++ for (i = 0; i < len; i++) {
++ uint8_t dat = buf[i];
++ for (j = 0; j < 8; j += bits, act += 2) {
++ uint8_t tmp = (dat >> j) & msk;
++ if (tmp == msk)
++ continue;
++ if (reserved_block_code &&
++ (tmp == reserved_block_code)) {
++ puts ("nand_read_bbt: Reserved block at");
++ putx (((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
++ putnl ();
++ this->bbt[offs + (act >> 3)] |= 0x2 << (act & 0x06);
++ continue;
++ }
++ /* Leave it for now, if its matured we can move this
++ * message to MTD_DEBUG_LEVEL0 */
++ puts ("nand_read_bbt: Bad block at ");
++ putx (((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
++ putnl ();
++ /* Factory marked bad or worn out ? */
++ if (tmp == 0)
++ this->bbt[offs + (act >> 3)] |= 0x3 << (act & 0x06);
++ else
++ this->bbt[offs + (act >> 3)] |= 0x1 << (act & 0x06);
++ }
++ }
++ totlen -= len;
++ from += len;
++ }
++ return 0;
++}
++
++/**
++ * read_abs_bbt - [GENERIC] Read the bad block table starting at a given page
++ * @mtd: MTD device structure
++ * @buf: temporary buffer
++ * @td: descriptor for the bad block table
++ * @chip: read the table for a specific chip, -1 read all chips.
++ * Applies only if NAND_BBT_PERCHIP option is set
++ *
++ * Read the bad block table for all chips starting at a given page
++ * We assume that the bbt bits are in consecutive order.
++*/
++static int read_abs_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, int chip)
++{
++ struct nand_chip *this = mtd->priv;
++ int res = 0, i;
++ int bits;
++
++ bits = td->options & NAND_BBT_NRBITS_MSK;
++ if (td->options & NAND_BBT_PERCHIP) {
++ int offs = 0;
++ for (i = 0; i < this->numchips; i++) {
++ if (chip == -1 || chip == i)
++ res = read_bbt (mtd, buf, td->pages[i], this->chipsize >> this->bbt_erase_shift, bits, offs, td->reserved_block_code);
++ if (res)
++ return res;
++ offs += this->chipsize >> (this->bbt_erase_shift + 2);
++ }
++ } else {
++ res = read_bbt (mtd, buf, td->pages[0], mtd->size >> this->bbt_erase_shift, bits, 0, td->reserved_block_code);
++ if (res)
++ return res;
++ }
++ return 0;
++}
++
++/**
++ * read_abs_bbts - [GENERIC] Read the bad block table(s) for all chips starting at a given page
++ * @mtd: MTD device structure
++ * @buf: temporary buffer
++ * @td: descriptor for the bad block table
++ * @md: descriptor for the bad block table mirror
++ *
++ * Read the bad block table(s) for all chips starting at a given page
++ * We assume that the bbt bits are in consecutive order.
++ *
++*/
++static int read_abs_bbts (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td,
++ struct nand_bbt_descr *md)
++{
++ struct nand_chip *this = mtd->priv;
++
++ /* Read the primary version, if available */
++ if (td->options & NAND_BBT_VERSION) {
++ nand_read_raw (mtd, buf, td->pages[0] << this->page_shift, mtd->oobblock, mtd->oobsize);
++ td->version[0] = buf[mtd->oobblock + td->veroffs];
++ puts ("Bad block table at page ");
++ putx (td->pages[0]);
++ puts (", version ");
++ putx (td->version[0]);
++ putnl ();
++ }
++
++ /* Read the mirror version, if available */
++ if (md && (md->options & NAND_BBT_VERSION)) {
++ nand_read_raw (mtd, buf, md->pages[0] << this->page_shift, mtd->oobblock, mtd->oobsize);
++ md->version[0] = buf[mtd->oobblock + md->veroffs];
++ puts ("Bad block table at page ");
++ putx (md->pages[0]);
++ puts (", version ");
++ putx (md->version[0]);
++ putnl ();
++ }
++
++ return 1;
++}
++
++/**
++ * create_bbt - [GENERIC] Create a bad block table by scanning the device
++ * @mtd: MTD device structure
++ * @buf: temporary buffer
++ * @bd: descriptor for the good/bad block search pattern
++ * @chip: create the table for a specific chip, -1 read all chips.
++ * Applies only if NAND_BBT_PERCHIP option is set
++ *
++ * Create a bad block table by scanning the device
++ * for the given good/bad block identify pattern
++ */
++static int create_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *bd, int chip)
++{
++ struct nand_chip *this = mtd->priv;
++ int i, j, numblocks, len, scanlen;
++ int startblock;
++ loff_t from;
++ size_t readlen, ooblen;
++
++ puts ("Scanning device for bad blocks\n");
++
++ if (bd->options & NAND_BBT_SCANALLPAGES)
++ len = 1 << (this->bbt_erase_shift - this->page_shift);
++ else {
++ if (bd->options & NAND_BBT_SCAN2NDPAGE)
++ len = 2;
++ else
++ len = 1;
++ }
++
++ if (!(bd->options & NAND_BBT_SCANEMPTY)) {
++ /* We need only read few bytes from the OOB area */
++ scanlen = ooblen = 0;
++ readlen = bd->len;
++ } else {
++ /* Full page content should be read */
++ scanlen = mtd->oobblock + mtd->oobsize;
++ readlen = len * mtd->oobblock;
++ ooblen = len * mtd->oobsize;
++ }
++
++ if (chip == -1) {
++ /* Note that numblocks is 2 * (real numblocks) here, see i+=2 below as it
++ * makes shifting and masking less painful */
++ numblocks = mtd->size >> (this->bbt_erase_shift - 1);
++ startblock = 0;
++ from = 0;
++ } else {
++ if (chip >= this->numchips) {
++ puts ("create_bbt(): chipnr (");
++ putx (chip + 1);
++ puts (" > available chips ");
++ putx (this->numchips);
++ putnl ();
++ return -EINVAL;
++ }
++ numblocks = this->chipsize >> (this->bbt_erase_shift - 1);
++ startblock = chip * numblocks;
++ numblocks += startblock;
++ from = startblock << (this->bbt_erase_shift - 1);
++ }
++
++ for (i = startblock; i < numblocks;) {
++ int ret;
++
++ if (bd->options & NAND_BBT_SCANEMPTY)
++ if ((ret = nand_read_raw (mtd, buf, from, readlen, ooblen)))
++ return ret;
++
++ for (j = 0; j < len; j++) {
++ if (!(bd->options & NAND_BBT_SCANEMPTY)) {
++ size_t retlen;
++
++ /* Read the full oob until read_oob is fixed to
++ * handle single byte reads for 16 bit buswidth */
++ ret = mtd->read_oob(mtd, from + j * mtd->oobblock,
++ mtd->oobsize, &retlen, buf);
++ if (ret)
++ return ret;
++
++ if (check_short_pattern (buf, bd)) {
++ this->bbt[i >> 3] |= 0x03 << (i & 0x6);
++ puts ("Bad eraseblock ");
++ putx (i >> 1);
++ puts (" at ");
++ putx ((unsigned int) from);
++ putnl ();
++ break;
++ }
++ } else {
++ if (check_pattern (&buf[j * scanlen], scanlen, mtd->oobblock, bd)) {
++ this->bbt[i >> 3] |= 0x03 << (i & 0x6);
++ puts ("Bad eraseblock ");
++ putx (i >> 1);
++ puts (" at ");
++ putx ((unsigned int) from);
++ putnl ();
++ break;
++ }
++ }
++ }
++ i += 2;
++ from += (1 << this->bbt_erase_shift);
++ }
++ return 0;
++}
++
++/**
++ * search_bbt - [GENERIC] scan the device for a specific bad block table
++ * @mtd: MTD device structure
++ * @buf: temporary buffer
++ * @td: descriptor for the bad block table
++ *
++ * Read the bad block table by searching for a given ident pattern.
++ * Search is preformed either from the beginning up or from the end of
++ * the device downwards. The search starts always at the start of a
++ * block.
++ * If the option NAND_BBT_PERCHIP is given, each chip is searched
++ * for a bbt, which contains the bad block information of this chip.
++ * This is neccecary to provide support for certain DOC devices.
++ *
++ * The bbt ident pattern resides in the oob area of the first page
++ * in a block.
++ */
++static int search_bbt (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td)
++{
++ struct nand_chip *this = mtd->priv;
++ int i, chips;
++ int bits, startblock, block, dir;
++ int scanlen = mtd->oobblock + mtd->oobsize;
++ int bbtblocks;
++
++ /* Search direction top -> down ? */
++ if (td->options & NAND_BBT_LASTBLOCK) {
++ startblock = (mtd->size >> this->bbt_erase_shift) -1;
++ dir = -1;
++ } else {
++ startblock = 0;
++ dir = 1;
++ }
++
++ /* Do we have a bbt per chip ? */
++ if (td->options & NAND_BBT_PERCHIP) {
++ chips = this->numchips;
++ bbtblocks = this->chipsize >> this->bbt_erase_shift;
++ startblock &= bbtblocks - 1;
++ } else {
++ chips = 1;
++ bbtblocks = mtd->size >> this->bbt_erase_shift;
++ }
++
++ /* Number of bits for each erase block in the bbt */
++ bits = td->options & NAND_BBT_NRBITS_MSK;
++
++ for (i = 0; i < chips; i++) {
++ /* Reset version information */
++ td->version[i] = 0;
++ td->pages[i] = -1;
++ /* Scan the maximum number of blocks */
++ for (block = 0; block < td->maxblocks; block++) {
++ int actblock = startblock + dir * block;
++ /* Read first page */
++ nand_read_raw (mtd, buf, actblock << this->bbt_erase_shift, mtd->oobblock, mtd->oobsize);
++ if (!check_pattern(buf, scanlen, mtd->oobblock, td)) {
++ td->pages[i] = actblock << (this->bbt_erase_shift - this->page_shift);
++ if (td->options & NAND_BBT_VERSION) {
++ td->version[i] = buf[mtd->oobblock + td->veroffs];
++ }
++ break;
++ }
++ }
++ startblock += this->chipsize >> this->bbt_erase_shift;
++ }
++ /* Check, if we found a bbt for each requested chip */
++ for (i = 0; i < chips; i++) {
++ if (td->pages[i] == -1) {
++ puts ("Bad block table not found for chip ");
++ putx (i);
++ putnl ();
++ } else {
++ puts ("Bad block table found at page ");
++ putx (td->pages[i]);
++ puts (" version ");
++ putx (td->version[i]);
++ putnl ();
++ }
++ }
++ return 0;
++}
++
++/**
++ * search_read_bbts - [GENERIC] scan the device for bad block table(s)
++ * @mtd: MTD device structure
++ * @buf: temporary buffer
++ * @td: descriptor for the bad block table
++ * @md: descriptor for the bad block table mirror
++ *
++ * Search and read the bad block table(s)
++*/
++static int search_read_bbts (struct mtd_info *mtd, uint8_t *buf,
++ struct nand_bbt_descr *td, struct nand_bbt_descr *md)
++{
++ /* Search the primary table */
++ search_bbt (mtd, buf, td);
++
++ /* Search the mirror table */
++ if (md)
++ search_bbt (mtd, buf, md);
++
++ /* Force result check */
++ return 1;
++}
++
++
++/**
++ * write_bbt - [GENERIC] (Re)write the bad block table
++ *
++ * @mtd: MTD device structure
++ * @buf: temporary buffer
++ * @td: descriptor for the bad block table
++ * @md: descriptor for the bad block table mirror
++ * @chipsel: selector for a specific chip, -1 for all
++ *
++ * (Re)write the bad block table
++ *
++*/
++static int write_bbt (struct mtd_info *mtd, uint8_t *buf,
++ struct nand_bbt_descr *td, struct nand_bbt_descr *md, int chipsel)
++{
++ struct nand_chip *this = mtd->priv;
++ struct nand_oobinfo oobinfo;
++ struct erase_info einfo;
++ int i, j, res, chip = 0;
++ int bits, startblock, dir, page, offs, numblocks, sft, sftmsk;
++ int nrchips, bbtoffs, pageoffs;
++ uint8_t msk[4];
++ uint8_t rcode = td->reserved_block_code;
++ size_t retlen, len = 0;
++ loff_t to;
++
++ if (!rcode)
++ rcode = 0xff;
++ /* Write bad block table per chip rather than per device ? */
++ if (td->options & NAND_BBT_PERCHIP) {
++ numblocks = (int) (this->chipsize >> this->bbt_erase_shift);
++ /* Full device write or specific chip ? */
++ if (chipsel == -1) {
++ nrchips = this->numchips;
++ } else {
++ nrchips = chipsel + 1;
++ chip = chipsel;
++ }
++ } else {
++ numblocks = (int) (mtd->size >> this->bbt_erase_shift);
++ nrchips = 1;
++ }
++
++ /* Loop through the chips */
++ for (; chip < nrchips; chip++) {
++
++ /* There was already a version of the table, reuse the page
++ * This applies for absolute placement too, as we have the
++ * page nr. in td->pages.
++ */
++ if (td->pages[chip] != -1) {
++ page = td->pages[chip];
++ goto write;
++ }
++
++ /* Automatic placement of the bad block table */
++ /* Search direction top -> down ? */
++ if (td->options & NAND_BBT_LASTBLOCK) {
++ startblock = numblocks * (chip + 1) - 1;
++ dir = -1;
++ } else {
++ startblock = chip * numblocks;
++ dir = 1;
++ }
++
++ for (i = 0; i < td->maxblocks; i++) {
++ int block = startblock + dir * i;
++ /* Check, if the block is bad */
++ switch ((this->bbt[block >> 2] >> (2 * (block & 0x03))) & 0x03) {
++ case 0x01:
++ case 0x03:
++ continue;
++ }
++ page = block << (this->bbt_erase_shift - this->page_shift);
++ /* Check, if the block is used by the mirror table */
++ if (!md || md->pages[chip] != page)
++ goto write;
++ }
++ puts ("No space left to write bad block table\r\n");
++ return -ENOSPC;
++write:
++
++ /* Set up shift count and masks for the flash table */
++ bits = td->options & NAND_BBT_NRBITS_MSK;
++ switch (bits) {
++ case 1: sft = 3; sftmsk = 0x07; msk[0] = 0x00; msk[1] = 0x01; msk[2] = ~rcode; msk[3] = 0x01; break;
++ case 2: sft = 2; sftmsk = 0x06; msk[0] = 0x00; msk[1] = 0x01; msk[2] = ~rcode; msk[3] = 0x03; break;
++ case 4: sft = 1; sftmsk = 0x04; msk[0] = 0x00; msk[1] = 0x0C; msk[2] = ~rcode; msk[3] = 0x0f; break;
++ case 8: sft = 0; sftmsk = 0x00; msk[0] = 0x00; msk[1] = 0x0F; msk[2] = ~rcode; msk[3] = 0xff; break;
++ default: return -EINVAL;
++ }
++
++ bbtoffs = chip * (numblocks >> 2);
++
++ to = ((loff_t) page) << this->page_shift;
++
++ memcpy (&oobinfo, this->autooob, sizeof(oobinfo));
++ oobinfo.useecc = MTD_NANDECC_PLACEONLY;
++
++ /* Must we save the block contents ? */
++ if (td->options & NAND_BBT_SAVECONTENT) {
++ /* Make it block aligned */
++ to &= ~((loff_t) ((1 << this->bbt_erase_shift) - 1));
++ len = 1 << this->bbt_erase_shift;
++ res = mtd->read_ecc (mtd, to, len, &retlen, buf, &buf[len], &oobinfo);
++ if (res < 0) {
++ if (retlen != len) {
++ puts ("nand_bbt: Error reading block for writing the bad block table\r\n");
++ return res;
++ }
++ puts ("nand_bbt: ECC error while reading block for writing bad block table\r\n");
++ }
++ /* Calc the byte offset in the buffer */
++ pageoffs = page - (int)(to >> this->page_shift);
++ offs = pageoffs << this->page_shift;
++ /* Preset the bbt area with 0xff */
++ memset (&buf[offs], 0xff, (size_t)(numblocks >> sft));
++ /* Preset the bbt's oob area with 0xff */
++ memset (&buf[len + pageoffs * mtd->oobsize], 0xff,
++ ((len >> this->page_shift) - pageoffs) * mtd->oobsize);
++ if (td->options & NAND_BBT_VERSION) {
++ buf[len + (pageoffs * mtd->oobsize) + td->veroffs] = td->version[chip];
++ }
++ } else {
++ /* Calc length */
++ len = (size_t) (numblocks >> sft);
++ /* Make it page aligned ! */
++ len = (len + (mtd->oobblock-1)) & ~(mtd->oobblock-1);
++ /* Preset the buffer with 0xff */
++ memset (buf, 0xff, len + (len >> this->page_shift) * mtd->oobsize);
++ offs = 0;
++ /* Pattern is located in oob area of first page */
++ memcpy (&buf[len + td->offs], td->pattern, td->len);
++ if (td->options & NAND_BBT_VERSION) {
++ buf[len + td->veroffs] = td->version[chip];
++ }
++ }
++
++ /* walk through the memory table */
++ for (i = 0; i < numblocks; ) {
++ uint8_t dat;
++ dat = this->bbt[bbtoffs + (i >> 2)];
++ for (j = 0; j < 4; j++ , i++) {
++ int sftcnt = (i << (3 - sft)) & sftmsk;
++ /* Do not store the reserved bbt blocks ! */
++ buf[offs + (i >> sft)] &= ~(msk[dat & 0x03] << sftcnt);
++ dat >>= 2;
++ }
++ }
++
++ memset (&einfo, 0, sizeof (einfo));
++ einfo.mtd = mtd;
++ einfo.addr = (unsigned long) to;
++ einfo.len = 1 << this->bbt_erase_shift;
++ res = nand_erase_nand (mtd, &einfo, 1);
++ if (res < 0) {
++ puts ("nand_bbt: Error during block erase: ");
++ putx (res);
++ putnl();
++ return res;
++ }
++
++ res = mtd->write_ecc (mtd, to, len, &retlen, buf, &buf[len], &oobinfo);
++ if (res < 0) {
++ puts ("nand_bbt: Error while writing bad block table ");
++ putx (res);
++ putnl ();
++ return res;
++ }
++ puts ("Bad block table written to ");
++ putx ((unsigned int) to);
++ puts (", version ");
++ putx (td->version[chip]);
++ putnl ();
++
++ /* Mark it as used */
++ td->pages[chip] = page;
++ }
++ return 0;
++}
++
++/**
++ * nand_memory_bbt - [GENERIC] create a memory based bad block table
++ * @mtd: MTD device structure
++ * @bd: descriptor for the good/bad block search pattern
++ *
++ * The function creates a memory based bbt by scanning the device
++ * for manufacturer / software marked good / bad blocks
++*/
++static inline int nand_memory_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd)
++{
++ struct nand_chip *this = mtd->priv;
++
++ bd->options &= ~NAND_BBT_SCANEMPTY;
++ return create_bbt (mtd, this->data_buf, bd, -1);
++}
++
++/**
++ * check_create - [GENERIC] create and write bbt(s) if neccecary
++ * @mtd: MTD device structure
++ * @buf: temporary buffer
++ * @bd: descriptor for the good/bad block search pattern
++ *
++ * The function checks the results of the previous call to read_bbt
++ * and creates / updates the bbt(s) if neccecary
++ * Creation is neccecary if no bbt was found for the chip/device
++ * Update is neccecary if one of the tables is missing or the
++ * version nr. of one table is less than the other
++*/
++static int check_create (struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *bd)
++{
++ int i, chips, writeops, chipsel, res;
++ struct nand_chip *this = mtd->priv;
++ struct nand_bbt_descr *td = this->bbt_td;
++ struct nand_bbt_descr *md = this->bbt_md;
++ struct nand_bbt_descr *rd, *rd2;
++
++ /* Do we have a bbt per chip ? */
++ if (td->options & NAND_BBT_PERCHIP)
++ chips = this->numchips;
++ else
++ chips = 1;
++
++ for (i = 0; i < chips; i++) {
++ writeops = 0;
++ rd = NULL;
++ rd2 = NULL;
++ /* Per chip or per device ? */
++ chipsel = (td->options & NAND_BBT_PERCHIP) ? i : -1;
++ /* Mirrored table avilable ? */
++ if (md) {
++ if (td->pages[i] == -1 && md->pages[i] == -1) {
++ writeops = 0x03;
++ goto create;
++ }
++
++ if (td->pages[i] == -1) {
++ rd = md;
++ td->version[i] = md->version[i];
++ writeops = 1;
++ goto writecheck;
++ }
++
++ if (md->pages[i] == -1) {
++ rd = td;
++ md->version[i] = td->version[i];
++ writeops = 2;
++ goto writecheck;
++ }
++
++ if (td->version[i] == md->version[i]) {
++ rd = td;
++ if (!(td->options & NAND_BBT_VERSION))
++ rd2 = md;
++ goto writecheck;
++ }
++
++ if (((int8_t) (td->version[i] - md->version[i])) > 0) {
++ rd = td;
++ md->version[i] = td->version[i];
++ writeops = 2;
++ } else {
++ rd = md;
++ td->version[i] = md->version[i];
++ writeops = 1;
++ }
++
++ goto writecheck;
++
++ } else {
++ if (td->pages[i] == -1) {
++ writeops = 0x01;
++ goto create;
++ }
++ rd = td;
++ goto writecheck;
++ }
++create:
++ /* Create the bad block table by scanning the device ? */
++ if (!(td->options & NAND_BBT_CREATE))
++ continue;
++
++ /* Create the table in memory by scanning the chip(s) */
++ create_bbt (mtd, buf, bd, chipsel);
++
++ td->version[i] = 1;
++ if (md)
++ md->version[i] = 1;
++writecheck:
++ /* read back first ? */
++ if (rd)
++ read_abs_bbt (mtd, buf, rd, chipsel);
++ /* If they weren't versioned, read both. */
++ if (rd2)
++ read_abs_bbt (mtd, buf, rd2, chipsel);
++
++ /* Write the bad block table to the device ? */
++ if ((writeops & 0x01) && (td->options & NAND_BBT_WRITE)) {
++ res = write_bbt (mtd, buf, td, md, chipsel);
++ if (res < 0)
++ return res;
++ }
++
++ /* Write the mirror bad block table to the device ? */
++ if ((writeops & 0x02) && md && (md->options & NAND_BBT_WRITE)) {
++ res = write_bbt (mtd, buf, md, td, chipsel);
++ if (res < 0)
++ return res;
++ }
++ }
++ return 0;
++}
++
++/**
++ * mark_bbt_regions - [GENERIC] mark the bad block table regions
++ * @mtd: MTD device structure
++ * @td: bad block table descriptor
++ *
++ * The bad block table regions are marked as "bad" to prevent
++ * accidental erasures / writes. The regions are identified by
++ * the mark 0x02.
++*/
++static void mark_bbt_region (struct mtd_info *mtd, struct nand_bbt_descr *td)
++{
++ struct nand_chip *this = mtd->priv;
++ int i, j, chips, block, nrblocks, update;
++ uint8_t oldval, newval;
++
++ /* Do we have a bbt per chip ? */
++ if (td->options & NAND_BBT_PERCHIP) {
++ chips = this->numchips;
++ nrblocks = (int)(this->chipsize >> this->bbt_erase_shift);
++ } else {
++ chips = 1;
++ nrblocks = (int)(mtd->size >> this->bbt_erase_shift);
++ }
++
++ for (i = 0; i < chips; i++) {
++ if ((td->options & NAND_BBT_ABSPAGE) ||
++ !(td->options & NAND_BBT_WRITE)) {
++ if (td->pages[i] == -1) continue;
++ block = td->pages[i] >> (this->bbt_erase_shift - this->page_shift);
++ block <<= 1;
++ oldval = this->bbt[(block >> 3)];
++ newval = oldval | (0x2 << (block & 0x06));
++ this->bbt[(block >> 3)] = newval;
++ if ((oldval != newval) && td->reserved_block_code)
++ nand_update_bbt(mtd, block << (this->bbt_erase_shift - 1));
++ continue;
++ }
++ update = 0;
++ if (td->options & NAND_BBT_LASTBLOCK)
++ block = ((i + 1) * nrblocks) - td->maxblocks;
++ else
++ block = i * nrblocks;
++ block <<= 1;
++ for (j = 0; j < td->maxblocks; j++) {
++ oldval = this->bbt[(block >> 3)];
++ newval = oldval | (0x2 << (block & 0x06));
++ this->bbt[(block >> 3)] = newval;
++ if (oldval != newval) update = 1;
++ block += 2;
++ }
++ /* If we want reserved blocks to be recorded to flash, and some
++ new ones have been marked, then we need to update the stored
++ bbts. This should only happen once. */
++ if (update && td->reserved_block_code)
++ nand_update_bbt(mtd, (block - 2) << (this->bbt_erase_shift - 1));
++ }
++}
++
++/**
++ * nand_scan_bbt - [NAND Interface] scan, find, read and maybe create bad block table(s)
++ * @mtd: MTD device structure
++ * @bd: descriptor for the good/bad block search pattern
++ *
++ * The function checks, if a bad block table(s) is/are already
++ * available. If not it scans the device for manufacturer
++ * marked good / bad blocks and writes the bad block table(s) to
++ * the selected place.
++ *
++ * The bad block table memory is allocated here. It must be freed
++ * by calling the nand_free_bbt function.
++ *
++*/
++int nand_scan_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd)
++{
++ struct nand_chip *this = mtd->priv;
++ int len, res = 0;
++ uint8_t *buf;
++ struct nand_bbt_descr *td = this->bbt_td;
++ struct nand_bbt_descr *md = this->bbt_md;
++
++ len = mtd->size >> (this->bbt_erase_shift + 2);
++ /* Allocate memory (2bit per block) */
++ this->bbt = malloc (len);
++ if (!this->bbt) {
++ puts ("nand_scan_bbt: Out of memory\r\n");
++ return -ENOMEM;
++ }
++ /* Clear the memory bad block table */
++ memset (this->bbt, 0x00, len);
++
++ /* If no primary table decriptor is given, scan the device
++ * to build a memory based bad block table
++ */
++ if (!td) {
++ if ((res = nand_memory_bbt(mtd, bd))) {
++ puts ("nand_bbt: Can't scan flash and build the RAM-based BBT\r\n");
++ free (this->bbt);
++ this->bbt = NULL;
++ }
++ return res;
++ }
++
++ /* Allocate a temporary buffer for one eraseblock incl. oob */
++ len = (1 << this->bbt_erase_shift);
++ len += (len >> this->page_shift) * mtd->oobsize;
++ buf = malloc (len);
++ if (!buf) {
++ puts ("nand_bbt: Out of memory\r\n");
++ free (this->bbt);
++ this->bbt = NULL;
++ return -ENOMEM;
++ }
++
++ /* Is the bbt at a given page ? */
++ if (td->options & NAND_BBT_ABSPAGE) {
++ res = read_abs_bbts (mtd, buf, td, md);
++ } else {
++ /* Search the bad block table using a pattern in oob */
++ res = search_read_bbts (mtd, buf, td, md);
++ }
++
++ if (res)
++ res = check_create (mtd, buf, bd);
++
++ /* Prevent the bbt regions from erasing / writing */
++ mark_bbt_region (mtd, td);
++ if (md)
++ mark_bbt_region (mtd, md);
++
++ free (buf);
++ return res;
++}
++
++
++/**
++ * nand_update_bbt - [NAND Interface] update bad block table(s)
++ * @mtd: MTD device structure
++ * @offs: the offset of the newly marked block
++ *
++ * The function updates the bad block table(s)
++*/
++int nand_update_bbt (struct mtd_info *mtd, loff_t offs)
++{
++ struct nand_chip *this = mtd->priv;
++ int len, res = 0, writeops = 0;
++ int chip, chipsel;
++ uint8_t *buf;
++ struct nand_bbt_descr *td = this->bbt_td;
++ struct nand_bbt_descr *md = this->bbt_md;
++
++ if (!this->bbt || !td)
++ return -EINVAL;
++
++ len = mtd->size >> (this->bbt_erase_shift + 2);
++ /* Allocate a temporary buffer for one eraseblock incl. oob */
++ len = (1 << this->bbt_erase_shift);
++ len += (len >> this->page_shift) * mtd->oobsize;
++ buf = malloc (len);
++ if (!buf) {
++ puts ("nand_update_bbt: Out of memory\r\n");
++ return -ENOMEM;
++ }
++
++ writeops = md != NULL ? 0x03 : 0x01;
++
++ /* Do we have a bbt per chip ? */
++ if (td->options & NAND_BBT_PERCHIP) {
++ chip = (int) (offs >> this->chip_shift);
++ chipsel = chip;
++ } else {
++ chip = 0;
++ chipsel = -1;
++ }
++
++ td->version[chip]++;
++ if (md)
++ md->version[chip]++;
++
++ /* Write the bad block table to the device ? */
++ if ((writeops & 0x01) && (td->options & NAND_BBT_WRITE)) {
++ res = write_bbt (mtd, buf, td, md, chipsel);
++ if (res < 0)
++ goto out;
++ }
++ /* Write the mirror bad block table to the device ? */
++ if ((writeops & 0x02) && md && (md->options & NAND_BBT_WRITE)) {
++ res = write_bbt (mtd, buf, md, td, chipsel);
++ }
++
++out:
++ free (buf);
++ return res;
++}
++
++/* Define some generic bad / good block scan pattern which are used
++ * while scanning a device for factory marked good / bad blocks. */
++static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
++
++static struct nand_bbt_descr smallpage_memorybased = {
++ .options = NAND_BBT_SCAN2NDPAGE,
++ .offs = 5,
++ .len = 1,
++ .pattern = scan_ff_pattern
++};
++
++static struct nand_bbt_descr largepage_memorybased = {
++ .options = 0,
++ .offs = 0,
++ .len = 2,
++ .pattern = scan_ff_pattern
++};
++
++static struct nand_bbt_descr smallpage_flashbased = {
++ .options = NAND_BBT_SCANEMPTY | NAND_BBT_SCANALLPAGES,
++ .offs = 5,
++ .len = 1,
++ .pattern = scan_ff_pattern
++};
++
++static struct nand_bbt_descr largepage_flashbased = {
++ .options = NAND_BBT_SCANEMPTY | NAND_BBT_SCANALLPAGES,
++ .offs = 0,
++ .len = 2,
++ .pattern = scan_ff_pattern
++};
++
++static uint8_t scan_agand_pattern[] = { 0x1C, 0x71, 0xC7, 0x1C, 0x71, 0xC7 };
++
++static struct nand_bbt_descr agand_flashbased = {
++ .options = NAND_BBT_SCANEMPTY | NAND_BBT_SCANALLPAGES,
++ .offs = 0x20,
++ .len = 6,
++ .pattern = scan_agand_pattern
++};
++
++/* Generic flash bbt decriptors
++*/
++static uint8_t bbt_pattern[] = {'B', 'b', 't', '0' };
++static uint8_t mirror_pattern[] = {'1', 't', 'b', 'B' };
++
++static struct nand_bbt_descr bbt_main_descr = {
++ .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE
++ | NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP,
++ .offs = 8,
++ .len = 4,
++ .veroffs = 12,
++ .maxblocks = 4,
++ .pattern = bbt_pattern
++};
++
++static struct nand_bbt_descr bbt_mirror_descr = {
++ .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE
++ | NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP,
++ .offs = 8,
++ .len = 4,
++ .veroffs = 12,
++ .maxblocks = 4,
++ .pattern = mirror_pattern
++};
++
++/**
++ * nand_default_bbt - [NAND Interface] Select a default bad block table for the device
++ * @mtd: MTD device structure
++ *
++ * This function selects the default bad block table
++ * support for the device and calls the nand_scan_bbt function
++ *
++*/
++int nand_default_bbt (struct mtd_info *mtd)
++{
++ struct nand_chip *this = mtd->priv;
++
++ /* Default for AG-AND. We must use a flash based
++ * bad block table as the devices have factory marked
++ * _good_ blocks. Erasing those blocks leads to loss
++ * of the good / bad information, so we _must_ store
++ * this information in a good / bad table during
++ * startup
++ */
++ if (this->options & NAND_IS_AND) {
++ /* Use the default pattern descriptors */
++ if (!this->bbt_td) {
++ this->bbt_td = &bbt_main_descr;
++ this->bbt_md = &bbt_mirror_descr;
++ }
++ this->options |= NAND_USE_FLASH_BBT;
++ return nand_scan_bbt (mtd, &agand_flashbased);
++ }
++
++
++ /* Is a flash based bad block table requested ? */
++ if (this->options & NAND_USE_FLASH_BBT) {
++ /* Use the default pattern descriptors */
++ if (!this->bbt_td) {
++ this->bbt_td = &bbt_main_descr;
++ this->bbt_md = &bbt_mirror_descr;
++ }
++ if (!this->badblock_pattern) {
++ this->badblock_pattern = (mtd->oobblock > 512) ?
++ &largepage_flashbased : &smallpage_flashbased;
++ }
++ } else {
++ this->bbt_td = NULL;
++ this->bbt_md = NULL;
++ if (!this->badblock_pattern) {
++ this->badblock_pattern = (mtd->oobblock > 512) ?
++ &largepage_memorybased : &smallpage_memorybased;
++ }
++ }
++ return nand_scan_bbt (mtd, this->badblock_pattern);
++}
++
++/**
++ * nand_isbad_bbt - [NAND Interface] Check if a block is bad
++ * @mtd: MTD device structure
++ * @offs: offset in the device
++ * @allowbbt: allow access to bad block table region
++ *
++*/
++int nand_isbad_bbt (struct mtd_info *mtd, loff_t offs, int allowbbt)
++{
++ struct nand_chip *this = mtd->priv;
++ int block;
++ uint8_t res;
++
++ /* Get block number * 2 */
++ block = (int) (offs >> (this->bbt_erase_shift - 1));
++ res = (this->bbt[block >> 3] >> (block & 0x06)) & 0x03;
++
++ DEBUG (MTD_DEBUG_LEVEL2, "nand_isbad_bbt(): bbt info for offs 0x%08x: (block %d) 0x%02x\n",
++ (unsigned int)offs, block >> 1, res);
++
++ switch ((int)res) {
++ case 0x00: return 0;
++ case 0x01: return 1;
++ case 0x02: return allowbbt ? 0 : 1;
++ }
++ return 1;
++}
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/nand_ecc.c linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/nand_ecc.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/nand_ecc.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/nand_ecc.c 2006-08-04 16:38:14.000000000 +0200
+@@ -0,0 +1,246 @@
++/*
++ * This file contains an ECC algorithm from Toshiba that detects and
++ * corrects 1 bit errors in a 256 byte block of data.
++ *
++ * Taken from drivers/mtd/nand/nand_ecc.c, modified for
++ * NAND flash boot on Etrax FS.
++ *
++ * Copyright (C) 2000-2004 Steven J. Hill (sjhill@realitydiluted.com)
++ * Toshiba America Electronics Components, Inc.
++ *
++ * $Id: nand_ecc.c,v 1.1 2006/08/04 14:38:14 ricardw Exp $
++ *
++ * This file is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License as published by the
++ * Free Software Foundation; either version 2 or (at your option) any
++ * later version.
++ *
++ * This file is distributed in the hope that it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
++ * for more details.
++ *
++ * You should have received a copy of the GNU General Public License along
++ * with this file; if not, write to the Free Software Foundation, Inc.,
++ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
++ *
++ * As a special exception, if other files instantiate templates or use
++ * macros or inline functions from these files, or you compile these
++ * files and link them with other works to produce a work based on these
++ * files, these files do not by themselves cause the resulting work to be
++ * covered by the GNU General Public License. However the source code for
++ * these files must still be made available in accordance with section (3)
++ * of the GNU General Public License.
++ *
++ * This exception does not invalidate any other reasons why a work based on
++ * this file might be covered by the GNU General Public License.
++ */
++
++#include <linux/types.h>
++#if 0
++#include <linux/kernel.h>
++#include <linux/module.h>
++#endif
++#include "nand_ecc.h"
++
++/*
++ * Pre-calculated 256-way 1 byte column parity
++ */
++static const u_char nand_ecc_precalc_table[] = {
++ 0x00, 0x55, 0x56, 0x03, 0x59, 0x0c, 0x0f, 0x5a, 0x5a, 0x0f, 0x0c, 0x59, 0x03, 0x56, 0x55, 0x00,
++ 0x65, 0x30, 0x33, 0x66, 0x3c, 0x69, 0x6a, 0x3f, 0x3f, 0x6a, 0x69, 0x3c, 0x66, 0x33, 0x30, 0x65,
++ 0x66, 0x33, 0x30, 0x65, 0x3f, 0x6a, 0x69, 0x3c, 0x3c, 0x69, 0x6a, 0x3f, 0x65, 0x30, 0x33, 0x66,
++ 0x03, 0x56, 0x55, 0x00, 0x5a, 0x0f, 0x0c, 0x59, 0x59, 0x0c, 0x0f, 0x5a, 0x00, 0x55, 0x56, 0x03,
++ 0x69, 0x3c, 0x3f, 0x6a, 0x30, 0x65, 0x66, 0x33, 0x33, 0x66, 0x65, 0x30, 0x6a, 0x3f, 0x3c, 0x69,
++ 0x0c, 0x59, 0x5a, 0x0f, 0x55, 0x00, 0x03, 0x56, 0x56, 0x03, 0x00, 0x55, 0x0f, 0x5a, 0x59, 0x0c,
++ 0x0f, 0x5a, 0x59, 0x0c, 0x56, 0x03, 0x00, 0x55, 0x55, 0x00, 0x03, 0x56, 0x0c, 0x59, 0x5a, 0x0f,
++ 0x6a, 0x3f, 0x3c, 0x69, 0x33, 0x66, 0x65, 0x30, 0x30, 0x65, 0x66, 0x33, 0x69, 0x3c, 0x3f, 0x6a,
++ 0x6a, 0x3f, 0x3c, 0x69, 0x33, 0x66, 0x65, 0x30, 0x30, 0x65, 0x66, 0x33, 0x69, 0x3c, 0x3f, 0x6a,
++ 0x0f, 0x5a, 0x59, 0x0c, 0x56, 0x03, 0x00, 0x55, 0x55, 0x00, 0x03, 0x56, 0x0c, 0x59, 0x5a, 0x0f,
++ 0x0c, 0x59, 0x5a, 0x0f, 0x55, 0x00, 0x03, 0x56, 0x56, 0x03, 0x00, 0x55, 0x0f, 0x5a, 0x59, 0x0c,
++ 0x69, 0x3c, 0x3f, 0x6a, 0x30, 0x65, 0x66, 0x33, 0x33, 0x66, 0x65, 0x30, 0x6a, 0x3f, 0x3c, 0x69,
++ 0x03, 0x56, 0x55, 0x00, 0x5a, 0x0f, 0x0c, 0x59, 0x59, 0x0c, 0x0f, 0x5a, 0x00, 0x55, 0x56, 0x03,
++ 0x66, 0x33, 0x30, 0x65, 0x3f, 0x6a, 0x69, 0x3c, 0x3c, 0x69, 0x6a, 0x3f, 0x65, 0x30, 0x33, 0x66,
++ 0x65, 0x30, 0x33, 0x66, 0x3c, 0x69, 0x6a, 0x3f, 0x3f, 0x6a, 0x69, 0x3c, 0x66, 0x33, 0x30, 0x65,
++ 0x00, 0x55, 0x56, 0x03, 0x59, 0x0c, 0x0f, 0x5a, 0x5a, 0x0f, 0x0c, 0x59, 0x03, 0x56, 0x55, 0x00
++};
++
++
++/**
++ * nand_trans_result - [GENERIC] create non-inverted ECC
++ * @reg2: line parity reg 2
++ * @reg3: line parity reg 3
++ * @ecc_code: ecc
++ *
++ * Creates non-inverted ECC code from line parity
++ */
++static void nand_trans_result(u_char reg2, u_char reg3,
++ u_char *ecc_code)
++{
++ u_char a, b, i, tmp1, tmp2;
++
++ /* Initialize variables */
++ a = b = 0x80;
++ tmp1 = tmp2 = 0;
++
++ /* Calculate first ECC byte */
++ for (i = 0; i < 4; i++) {
++ if (reg3 & a) /* LP15,13,11,9 --> ecc_code[0] */
++ tmp1 |= b;
++ b >>= 1;
++ if (reg2 & a) /* LP14,12,10,8 --> ecc_code[0] */
++ tmp1 |= b;
++ b >>= 1;
++ a >>= 1;
++ }
++
++ /* Calculate second ECC byte */
++ b = 0x80;
++ for (i = 0; i < 4; i++) {
++ if (reg3 & a) /* LP7,5,3,1 --> ecc_code[1] */
++ tmp2 |= b;
++ b >>= 1;
++ if (reg2 & a) /* LP6,4,2,0 --> ecc_code[1] */
++ tmp2 |= b;
++ b >>= 1;
++ a >>= 1;
++ }
++
++ /* Store two of the ECC bytes */
++ ecc_code[0] = tmp1;
++ ecc_code[1] = tmp2;
++}
++
++/**
++ * nand_calculate_ecc - [NAND Interface] Calculate 3 byte ECC code for 256 byte block
++ * @mtd: MTD block structure
++ * @dat: raw data
++ * @ecc_code: buffer for ECC
++ */
++int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code)
++{
++ u_char idx, reg1, reg2, reg3;
++ int j;
++
++ /* Initialize variables */
++ reg1 = reg2 = reg3 = 0;
++ ecc_code[0] = ecc_code[1] = ecc_code[2] = 0;
++
++ /* Build up column parity */
++ for(j = 0; j < 256; j++) {
++
++ /* Get CP0 - CP5 from table */
++ idx = nand_ecc_precalc_table[dat[j]];
++ reg1 ^= (idx & 0x3f);
++
++ /* All bit XOR = 1 ? */
++ if (idx & 0x40) {
++ reg3 ^= (u_char) j;
++ reg2 ^= ~((u_char) j);
++ }
++ }
++
++ /* Create non-inverted ECC code from line parity */
++ nand_trans_result(reg2, reg3, ecc_code);
++
++ /* Calculate final ECC code */
++ ecc_code[0] = ~ecc_code[0];
++ ecc_code[1] = ~ecc_code[1];
++ ecc_code[2] = ((~reg1) << 2) | 0x03;
++ return 0;
++}
++
++/**
++ * nand_correct_data - [NAND Interface] Detect and correct bit error(s)
++ * @mtd: MTD block structure
++ * @dat: raw data read from the chip
++ * @read_ecc: ECC from the chip
++ * @calc_ecc: the ECC calculated from raw data
++ *
++ * Detect and correct a 1 bit error for 256 byte block
++ */
++int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc)
++{
++ u_char a, b, c, d1, d2, d3, add, bit, i;
++
++ /* Do error detection */
++ d1 = calc_ecc[0] ^ read_ecc[0];
++ d2 = calc_ecc[1] ^ read_ecc[1];
++ d3 = calc_ecc[2] ^ read_ecc[2];
++
++ if ((d1 | d2 | d3) == 0) {
++ /* No errors */
++ return 0;
++ }
++ else {
++ a = (d1 ^ (d1 >> 1)) & 0x55;
++ b = (d2 ^ (d2 >> 1)) & 0x55;
++ c = (d3 ^ (d3 >> 1)) & 0x54;
++
++ /* Found and will correct single bit error in the data */
++ if ((a == 0x55) && (b == 0x55) && (c == 0x54)) {
++ c = 0x80;
++ add = 0;
++ a = 0x80;
++ for (i=0; i<4; i++) {
++ if (d1 & c)
++ add |= a;
++ c >>= 2;
++ a >>= 1;
++ }
++ c = 0x80;
++ for (i=0; i<4; i++) {
++ if (d2 & c)
++ add |= a;
++ c >>= 2;
++ a >>= 1;
++ }
++ bit = 0;
++ b = 0x04;
++ c = 0x80;
++ for (i=0; i<3; i++) {
++ if (d3 & c)
++ bit |= b;
++ c >>= 2;
++ b >>= 1;
++ }
++ b = 0x01;
++ a = dat[add];
++ a ^= (b << bit);
++ dat[add] = a;
++ return 1;
++ }
++ else {
++ i = 0;
++ while (d1) {
++ if (d1 & 0x01)
++ ++i;
++ d1 >>= 1;
++ }
++ while (d2) {
++ if (d2 & 0x01)
++ ++i;
++ d2 >>= 1;
++ }
++ while (d3) {
++ if (d3 & 0x01)
++ ++i;
++ d3 >>= 1;
++ }
++ if (i == 1) {
++ /* ECC Code Error Correction */
++ read_ecc[0] = calc_ecc[0];
++ read_ecc[1] = calc_ecc[1];
++ read_ecc[2] = calc_ecc[2];
++ return 2;
++ }
++ else {
++ /* Uncorrectable Error */
++ return -1;
++ }
++ }
++ }
++
++ /* Should never happen */
++ return -1;
++}
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/nand_ecc.h linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/nand_ecc.h
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/nand_ecc.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/nand_ecc.h 2006-08-04 16:38:14.000000000 +0200
+@@ -0,0 +1,30 @@
++/*
++ * drivers/mtd/nand_ecc.h
++ *
++ * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
++ *
++ * $Id: nand_ecc.h,v 1.1 2006/08/04 14:38:14 ricardw Exp $
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ * This file is the header for the ECC algorithm.
++ */
++
++#ifndef __MTD_NAND_ECC_H__
++#define __MTD_NAND_ECC_H__
++
++struct mtd_info;
++
++/*
++ * Calculate 3 byte ECC code for 256 byte block
++ */
++int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code);
++
++/*
++ * Detect and correct a 1 bit error for 256 byte block
++ */
++int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc);
++
++#endif /* __MTD_NAND_ECC_H__ */
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/nand_ids.c linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/nand_ids.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/nand_ids.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/nand_ids.c 2006-08-04 16:38:14.000000000 +0200
+@@ -0,0 +1,133 @@
++/*
++ * drivers/mtd/nandids.c
++ *
++ * Copyright (C) 2002 Thomas Gleixner (tglx@linutronix.de)
++ *
++ * $Id: nand_ids.c,v 1.1 2006/08/04 14:38:14 ricardw Exp $
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ */
++#if 0
++#include <linux/module.h>
++#endif
++
++#include "nand.h"
++/*
++* Chip ID list
++*
++* Name. ID code, pagesize, chipsize in MegaByte, eraseblock size,
++* options
++*
++* Pagesize; 0, 256, 512
++* 0 get this information from the extended chip ID
+++ 256 256 Byte page size
++* 512 512 Byte page size
++*/
++struct nand_flash_dev nand_flash_ids[] = {
++ {"NAND 1MiB 5V 8-bit", 0x6e, 256, 1, 0x1000, 0},
++ {"NAND 2MiB 5V 8-bit", 0x64, 256, 2, 0x1000, 0},
++ {"NAND 4MiB 5V 8-bit", 0x6b, 512, 4, 0x2000, 0},
++ {"NAND 1MiB 3,3V 8-bit", 0xe8, 256, 1, 0x1000, 0},
++ {"NAND 1MiB 3,3V 8-bit", 0xec, 256, 1, 0x1000, 0},
++ {"NAND 2MiB 3,3V 8-bit", 0xea, 256, 2, 0x1000, 0},
++ {"NAND 4MiB 3,3V 8-bit", 0xd5, 512, 4, 0x2000, 0},
++ {"NAND 4MiB 3,3V 8-bit", 0xe3, 512, 4, 0x2000, 0},
++ {"NAND 4MiB 3,3V 8-bit", 0xe5, 512, 4, 0x2000, 0},
++ {"NAND 8MiB 3,3V 8-bit", 0xd6, 512, 8, 0x2000, 0},
++
++ {"NAND 8MiB 1,8V 8-bit", 0x39, 512, 8, 0x2000, 0},
++ {"NAND 8MiB 3,3V 8-bit", 0xe6, 512, 8, 0x2000, 0},
++ {"NAND 8MiB 1,8V 16-bit", 0x49, 512, 8, 0x2000, NAND_BUSWIDTH_16},
++ {"NAND 8MiB 3,3V 16-bit", 0x59, 512, 8, 0x2000, NAND_BUSWIDTH_16},
++
++ {"NAND 16MiB 1,8V 8-bit", 0x33, 512, 16, 0x4000, 0},
++ {"NAND 16MiB 3,3V 8-bit", 0x73, 512, 16, 0x4000, 0},
++ {"NAND 16MiB 1,8V 16-bit", 0x43, 512, 16, 0x4000, NAND_BUSWIDTH_16},
++ {"NAND 16MiB 3,3V 16-bit", 0x53, 512, 16, 0x4000, NAND_BUSWIDTH_16},
++
++ {"NAND 32MiB 1,8V 8-bit", 0x35, 512, 32, 0x4000, 0},
++ {"NAND 32MiB 3,3V 8-bit", 0x75, 512, 32, 0x4000, 0},
++ {"NAND 32MiB 1,8V 16-bit", 0x45, 512, 32, 0x4000, NAND_BUSWIDTH_16},
++ {"NAND 32MiB 3,3V 16-bit", 0x55, 512, 32, 0x4000, NAND_BUSWIDTH_16},
++
++ {"NAND 64MiB 1,8V 8-bit", 0x36, 512, 64, 0x4000, 0},
++ {"NAND 64MiB 3,3V 8-bit", 0x76, 512, 64, 0x4000, 0},
++ {"NAND 64MiB 1,8V 16-bit", 0x46, 512, 64, 0x4000, NAND_BUSWIDTH_16},
++ {"NAND 64MiB 3,3V 16-bit", 0x56, 512, 64, 0x4000, NAND_BUSWIDTH_16},
++
++ {"NAND 128MiB 1,8V 8-bit", 0x78, 512, 128, 0x4000, 0},
++ {"NAND 128MiB 1,8V 8-bit", 0x39, 512, 128, 0x4000, 0},
++ {"NAND 128MiB 3,3V 8-bit", 0x79, 512, 128, 0x4000, 0},
++ {"NAND 128MiB 1,8V 16-bit", 0x72, 512, 128, 0x4000, NAND_BUSWIDTH_16},
++ {"NAND 128MiB 1,8V 16-bit", 0x49, 512, 128, 0x4000, NAND_BUSWIDTH_16},
++ {"NAND 128MiB 3,3V 16-bit", 0x74, 512, 128, 0x4000, NAND_BUSWIDTH_16},
++ {"NAND 128MiB 3,3V 16-bit", 0x59, 512, 128, 0x4000, NAND_BUSWIDTH_16},
++
++ {"NAND 256MiB 3,3V 8-bit", 0x71, 512, 256, 0x4000, 0},
++
++ /* These are the new chips with large page size. The pagesize
++ * and the erasesize is determined from the extended id bytes
++ */
++ /*512 Megabit */
++ {"NAND 64MiB 1,8V 8-bit", 0xA2, 0, 64, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
++ {"NAND 64MiB 3,3V 8-bit", 0xF2, 0, 64, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
++ {"NAND 64MiB 1,8V 16-bit", 0xB2, 0, 64, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
++ {"NAND 64MiB 3,3V 16-bit", 0xC2, 0, 64, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
++
++ /* 1 Gigabit */
++ {"NAND 128MiB 1,8V 8-bit", 0xA1, 0, 128, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
++ {"NAND 128MiB 3,3V 8-bit", 0xF1, 0, 128, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
++ {"NAND 128MiB 1,8V 16-bit", 0xB1, 0, 128, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
++ {"NAND 128MiB 3,3V 16-bit", 0xC1, 0, 128, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
++
++ /* 2 Gigabit */
++ {"NAND 256MiB 1,8V 8-bit", 0xAA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
++ {"NAND 256MiB 3,3V 8-bit", 0xDA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
++ {"NAND 256MiB 1,8V 16-bit", 0xBA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
++ {"NAND 256MiB 3,3V 16-bit", 0xCA, 0, 256, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
++
++ /* 4 Gigabit */
++ {"NAND 512MiB 1,8V 8-bit", 0xAC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
++ {"NAND 512MiB 3,3V 8-bit", 0xDC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
++ {"NAND 512MiB 1,8V 16-bit", 0xBC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
++ {"NAND 512MiB 3,3V 16-bit", 0xCC, 0, 512, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
++
++ /* 8 Gigabit */
++ {"NAND 1GiB 1,8V 8-bit", 0xA3, 0, 1024, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
++ {"NAND 1GiB 3,3V 8-bit", 0xD3, 0, 1024, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
++ {"NAND 1GiB 1,8V 16-bit", 0xB3, 0, 1024, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
++ {"NAND 1GiB 3,3V 16-bit", 0xC3, 0, 1024, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
++
++ /* 16 Gigabit */
++ {"NAND 2GiB 1,8V 8-bit", 0xA5, 0, 2048, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
++ {"NAND 2GiB 3,3V 8-bit", 0xD5, 0, 2048, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_NO_AUTOINCR},
++ {"NAND 2GiB 1,8V 16-bit", 0xB5, 0, 2048, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
++ {"NAND 2GiB 3,3V 16-bit", 0xC5, 0, 2048, 0, NAND_SAMSUNG_LP_OPTIONS | NAND_BUSWIDTH_16 | NAND_NO_AUTOINCR},
++
++ /* Renesas AND 1 Gigabit. Those chips do not support extended id and have a strange page/block layout !
++ * The chosen minimum erasesize is 4 * 2 * 2048 = 16384 Byte, as those chips have an array of 4 page planes
++ * 1 block = 2 pages, but due to plane arrangement the blocks 0-3 consists of page 0 + 4,1 + 5, 2 + 6, 3 + 7
++ * Anyway JFFS2 would increase the eraseblock size so we chose a combined one which can be erased in one go
++ * There are more speed improvements for reads and writes possible, but not implemented now
++ */
++ {"AND 128MiB 3,3V 8-bit", 0x01, 2048, 128, 0x4000, NAND_IS_AND | NAND_NO_AUTOINCR | NAND_4PAGE_ARRAY | BBT_AUTO_REFRESH},
++
++ {NULL,}
++};
++
++/*
++* Manufacturer ID list
++*/
++struct nand_manufacturers nand_manuf_ids[] = {
++ {NAND_MFR_TOSHIBA, "Toshiba"},
++ {NAND_MFR_SAMSUNG, "Samsung"},
++ {NAND_MFR_FUJITSU, "Fujitsu"},
++ {NAND_MFR_NATIONAL, "National"},
++ {NAND_MFR_RENESAS, "Renesas"},
++ {NAND_MFR_STMICRO, "ST Micro"},
++ {NAND_MFR_HYNIX, "Hynix"},
++ {0x0, "Unknown"}
++};
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/rescue.ld linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/rescue.ld
+--- linux-2.6.19.2.old/arch/cris/arch-v32/boot/rescue/rescue.ld 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/boot/rescue/rescue.ld 2006-10-18 10:52:47.000000000 +0200
+@@ -1,20 +1,40 @@
+-MEMORY
++/*#OUTPUT_FORMAT(elf32-us-cris) */
++OUTPUT_ARCH (crisv32)
++
++MEMORY
+ {
+- flash : ORIGIN = 0x00000000,
+- LENGTH = 0x00100000
++ bootblk : ORIGIN = 0x38000000,
++ LENGTH = 0x00004000
++ intmem : ORIGIN = 0x38004000,
++ LENGTH = 0x00005000
+ }
+
+ SECTIONS
+ {
+ .text :
+ {
+- stext = . ;
++ _stext = . ;
+ *(.text)
+- etext = . ;
+- } > flash
++ *(.rodata)
++ *(.rodata.*)
++ _etext = . ;
++ } > bootblk
+ .data :
+ {
+ *(.data)
+- edata = . ;
+- } > flash
++ _edata = . ;
++ } > bootblk
++ .bss :
++ {
++ _bss = . ;
++ *(.bss)
++ _end = ALIGN( 0x10 ) ;
++ } > intmem
++
++ /* Get rid of stuff from EXPORT_SYMBOL(foo). */
++ /DISCARD/ :
++ {
++ *(__ksymtab_strings)
++ *(__ksymtab)
++ }
+ }
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/drivers/Kconfig linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/Kconfig
+--- linux-2.6.19.2.old/arch/cris/arch-v32/drivers/Kconfig 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/Kconfig 2007-01-29 16:14:16.000000000 +0100
+@@ -6,14 +6,6 @@
+ This option enables the ETRAX FS built-in 10/100Mbit Ethernet
+ controller.
+
+-config ETRAX_ETHERNET_HW_CSUM
+- bool "Hardware accelerated ethernet checksum and scatter/gather"
+- depends on ETRAX_ETHERNET
+- depends on ETRAX_STREAMCOPROC
+- default y
+- help
+- Hardware acceleration of checksumming and scatter/gather
+-
+ config ETRAX_ETHERNET_IFACE0
+ depends on ETRAX_ETHERNET
+ bool "Enable network interface 0"
+@@ -23,6 +15,52 @@
+ bool "Enable network interface 1 (uses DMA6 and DMA7)"
+
+ choice
++ prompt "Eth0 led group"
++ depends on ETRAX_ETHERNET_IFACE0
++ default ETRAX_ETH0_USE_LEDGRP0
++
++config ETRAX_ETH0_USE_LEDGRP0
++ bool "Use LED grp 0"
++ depends on ETRAX_NBR_LED_GRP_ONE || ETRAX_NBR_LED_GRP_TWO
++ help
++ Use LED grp 0 for eth0
++
++config ETRAX_ETH0_USE_LEDGRP1
++ bool "Use LED grp 1"
++ depends on ETRAX_NBR_LED_GRP_TWO
++ help
++ Use LED grp 1 for eth0
++
++config ETRAX_ETH0_USE_LEDGRPNULL
++ bool "Use no LEDs for eth0"
++ help
++ Use no LEDs for eth0
++endchoice
++
++choice
++ prompt "Eth1 led group"
++ depends on ETRAX_ETHERNET_IFACE1
++ default ETRAX_ETH1_USE_LEDGRP1
++
++config ETRAX_ETH1_USE_LEDGRP0
++ bool "Use LED grp 0"
++ depends on ETRAX_NBR_LED_GRP_ONE || ETRAX_NBR_LED_GRP_TWO
++ help
++ Use LED grp 0 for eth1
++
++config ETRAX_ETH1_USE_LEDGRP1
++ bool "Use LED grp 1"
++ depends on ETRAX_NBR_LED_GRP_TWO
++ help
++ Use LED grp 1 for eth1
++
++config ETRAX_ETH1_USE_LEDGRPNULL
++ bool "Use no LEDs for eth1"
++ help
++ Use no LEDs for eth1
++endchoice
++
++choice
+ prompt "Network LED behavior"
+ depends on ETRAX_ETHERNET
+ default ETRAX_NETWORK_LED_ON_WHEN_ACTIVITY
+@@ -56,10 +94,25 @@
+ config ETRAXFS_SERIAL
+ bool "Serial-port support"
+ depends on ETRAX_ARCH_V32
++ select SERIAL_CORE
++ select SERIAL_CORE_CONSOLE
+ help
+ Enables the ETRAX FS serial driver for ser0 (ttyS0)
+ You probably want this enabled.
+
++config ETRAX_RS485
++ bool "RS-485 support"
++ depends on ETRAXFS_SERIAL
++ help
++ Enables support for RS-485 serial communication.
++
++config ETRAX_RS485_DISABLE_RECEIVER
++ bool "Disable serial receiver"
++ depends on ETRAX_RS485
++ help
++ It is necessary to disable the serial receiver to avoid serial
++ loopback. Not all products are able to do this in software only.
++
+ config ETRAX_SERIAL_PORT0
+ bool "Serial port 0 enabled"
+ depends on ETRAXFS_SERIAL
+@@ -70,6 +123,31 @@
+ ser0 can use dma4 or dma6 for output and dma5 or dma7 for input.
+
+ choice
++ prompt "Ser0 default port type "
++ depends on ETRAX_SERIAL_PORT0
++ default ETRAX_SERIAL_PORT0_TYPE_232
++ help
++ Type of serial port.
++
++config ETRAX_SERIAL_PORT0_TYPE_232
++ bool "Ser0 is a RS-232 port"
++ help
++ Configure serial port 0 to be a RS-232 port.
++
++config ETRAX_SERIAL_PORT0_TYPE_485HD
++ bool "Ser0 is a half duplex RS-485 port"
++ depends on ETRAX_RS485
++ help
++ Configure serial port 0 to be a half duplex (two wires) RS-485 port.
++
++config ETRAX_SERIAL_PORT0_TYPE_485FD
++ bool "Ser0 is a full duplex RS-485 port"
++ depends on ETRAX_RS485
++ help
++ Configure serial port 0 to be a full duplex (four wires) RS-485 port.
++endchoice
++
++choice
+ prompt "Ser0 DMA in channel "
+ depends on ETRAX_SERIAL_PORT0
+ default ETRAX_SERIAL_PORT0_NO_DMA_IN
+@@ -139,6 +217,31 @@
+ Enables the ETRAX FS serial driver for ser1 (ttyS1).
+
+ choice
++ prompt "Ser1 default port type"
++ depends on ETRAX_SERIAL_PORT1
++ default ETRAX_SERIAL_PORT1_TYPE_232
++ help
++ Type of serial port.
++
++config ETRAX_SERIAL_PORT1_TYPE_232
++ bool "Ser1 is a RS-232 port"
++ help
++ Configure serial port 1 to be a RS-232 port.
++
++config ETRAX_SERIAL_PORT1_TYPE_485HD
++ bool "Ser1 is a half duplex RS-485 port"
++ depends on ETRAX_RS485
++ help
++ Configure serial port 1 to be a half duplex (two wires) RS-485 port.
++
++config ETRAX_SERIAL_PORT1_TYPE_485FD
++ bool "Ser1 is a full duplex RS-485 port"
++ depends on ETRAX_RS485
++ help
++ Configure serial port 1 to be a full duplex (four wires) RS-485 port.
++endchoice
++
++choice
+ prompt "Ser1 DMA in channel "
+ depends on ETRAX_SERIAL_PORT1
+ default ETRAX_SERIAL_PORT1_NO_DMA_IN
+@@ -210,6 +313,31 @@
+ Enables the ETRAX FS serial driver for ser2 (ttyS2).
+
+ choice
++ prompt "Ser2 default port type"
++ depends on ETRAX_SERIAL_PORT2
++ default ETRAX_SERIAL_PORT2_TYPE_232
++ help
++ What DMA channel to use for ser2
++
++config ETRAX_SERIAL_PORT2_TYPE_232
++ bool "Ser2 is a RS-232 port"
++ help
++ Configure serial port 2 to be a RS-232 port.
++
++config ETRAX_SERIAL_PORT2_TYPE_485HD
++ bool "Ser2 is a half duplex RS-485 port"
++ depends on ETRAX_RS485
++ help
++ Configure serial port 2 to be a half duplex (two wires) RS-485 port.
++
++config ETRAX_SERIAL_PORT2_TYPE_485FD
++ bool "Ser2 is a full duplex RS-485 port"
++ depends on ETRAX_RS485
++ help
++ Configure serial port 2 to be a full duplex (four wires) RS-485 port.
++endchoice
++
++choice
+ prompt "Ser2 DMA in channel "
+ depends on ETRAX_SERIAL_PORT2
+ default ETRAX_SERIAL_PORT2_NO_DMA_IN
+@@ -279,6 +407,31 @@
+ Enables the ETRAX FS serial driver for ser3 (ttyS3).
+
+ choice
++ prompt "Ser3 default port type"
++ depends on ETRAX_SERIAL_PORT3
++ default ETRAX_SERIAL_PORT3_TYPE_232
++ help
++ What DMA channel to use for ser3.
++
++config ETRAX_SERIAL_PORT3_TYPE_232
++ bool "Ser3 is a RS-232 port"
++ help
++ Configure serial port 3 to be a RS-232 port.
++
++config ETRAX_SERIAL_PORT3_TYPE_485HD
++ bool "Ser3 is a half duplex RS-485 port"
++ depends on ETRAX_RS485
++ help
++ Configure serial port 3 to be a half duplex (two wires) RS-485 port.
++
++config ETRAX_SERIAL_PORT3_TYPE_485FD
++ bool "Ser3 is a full duplex RS-485 port"
++ depends on ETRAX_RS485
++ help
++ Configure serial port 3 to be a full duplex (four wires) RS-485 port.
++endchoice
++
++choice
+ prompt "Ser3 DMA in channel "
+ depends on ETRAX_SERIAL_PORT3
+ default ETRAX_SERIAL_PORT3_NO_DMA_IN
+@@ -341,38 +494,6 @@
+ string "Ser 3 CD bit (empty = not used)"
+ depends on ETRAX_SERIAL_PORT3
+
+-config ETRAX_RS485
+- bool "RS-485 support"
+- depends on ETRAX_SERIAL
+- help
+- Enables support for RS-485 serial communication. For a primer on
+- RS-485, see <http://www.hw.cz/english/docs/rs485/rs485.html>.
+-
+-config ETRAX_RS485_DISABLE_RECEIVER
+- bool "Disable serial receiver"
+- depends on ETRAX_RS485
+- help
+- It is necessary to disable the serial receiver to avoid serial
+- loopback. Not all products are able to do this in software only.
+- Axis 2400/2401 must disable receiver.
+-
+-config ETRAX_AXISFLASHMAP
+- bool "Axis flash-map support"
+- depends on ETRAX_ARCH_V32
+- select MTD
+- select MTD_CFI
+- select MTD_CFI_AMDSTD
+- select MTD_OBSOLETE_CHIPS
+- select MTD_AMDSTD
+- select MTD_CHAR
+- select MTD_BLOCK
+- select MTD_PARTITIONS
+- select MTD_CONCAT
+- select MTD_COMPLEX_MAPPINGS
+- help
+- This option enables MTD mapping of flash devices. Needed to use
+- flash memories. If unsure, say Y.
+-
+ config ETRAX_SYNCHRONOUS_SERIAL
+ bool "Synchronous serial-port support"
+ depends on ETRAX_ARCH_V32
+@@ -405,6 +526,31 @@
+ A synchronous serial port can run in manual or DMA mode.
+ Selecting this option will make it run in DMA mode.
+
++config ETRAX_AXISFLASHMAP
++ bool "Axis flash-map support"
++ depends on ETRAX_ARCH_V32
++ select MTD
++ select MTD_CFI
++ select MTD_CFI_AMDSTD
++ select MTD_JEDECPROBE
++ select MTD_CHAR
++ select MTD_BLOCK
++ select MTD_PARTITIONS
++ select MTD_CONCAT
++ select MTD_COMPLEX_MAPPINGS
++ help
++ This option enables MTD mapping of flash devices. Needed to use
++ flash memories. If unsure, say Y.
++
++config ETRAX_AXISFLASHMAP_MTD0WHOLE
++ bool "MTD0 is whole boot flash device"
++ depends on ETRAX_AXISFLASHMAP
++ default N
++ help
++ When this option is not set, mtd0 refers to the first partition
++ on the boot flash device. When set, mtd0 refers to the whole
++ device, with mtd1 referring to the first partition etc.
++
+ config ETRAX_PTABLE_SECTOR
+ int "Byte-offset of partition table sector"
+ depends on ETRAX_AXISFLASHMAP
+@@ -425,11 +571,19 @@
+ This option enables MTD mapping of NAND flash devices. Needed to use
+ NAND flash memories. If unsure, say Y.
+
++config ETRAX_NANDBOOT
++ bool "Boot from NAND flash"
++ depends on ETRAX_NANDFLASH
++ help
++ This options enables booting from NAND flash devices.
++ Say Y if your boot code, kernel and root file system is in
++ NAND flash. Say N if they are in NOR flash.
++
+ config ETRAX_I2C
+ bool "I2C driver"
+ depends on ETRAX_ARCH_V32
+ help
+- This option enabled the I2C driver used by e.g. the RTC driver.
++ This option enables the I2C driver used by e.g. the RTC driver.
+
+ config ETRAX_I2C_DATA_PORT
+ string "I2C data pin"
+@@ -476,18 +630,19 @@
+ Remember that you need to setup the port directions appropriately in
+ the General configuration.
+
+-config ETRAX_PA_BUTTON_BITMASK
+- hex "PA-buttons bitmask"
++config ETRAX_VIRTUAL_GPIO
++ bool "Virtual GPIO support"
+ depends on ETRAX_GPIO
+- default "0x02"
+ help
+- This is a bitmask (8 bits) with information about what bits on PA
+- that are used for buttons.
+- Most products has a so called TEST button on PA1, if that is true
+- use 0x02 here.
+- Use 00 if there are no buttons on PA.
+- If the bitmask is <> 00 a button driver will be included in the gpio
+- driver. ETRAX general I/O support must be enabled.
++ Enables the virtual Etrax general port device (major 120, minor 6).
++ It uses an I/O expander for the I2C-bus.
++
++config ETRAX_VIRTUAL_GPIO_INTERRUPT_PA_PIN
++ int "Virtual GPIO interrupt pin on PA pin"
++ range 0 7
++ depends on ETRAX_VIRTUAL_GPIO
++ help
++ The pin to use on PA for virtual gpio interrupt.
+
+ config ETRAX_PA_CHANGEABLE_DIR
+ hex "PA user changeable dir mask"
+@@ -584,6 +739,25 @@
+ that a user can change the value on using ioctl's.
+ Bit set = changeable.
+
++config ETRAX_PV_CHANGEABLE_DIR
++ hex "PV user changeable dir mask"
++ depends on ETRAX_VIRTUAL_GPIO
++ default "0x0000"
++ help
++ This is a bitmask (16 bits) with information of what bits in PV
++ that a user can change direction on using ioctl's.
++ Bit set = changeable.
++ You probably want 0x0000 here, but it depends on your hardware.
++
++config ETRAX_PV_CHANGEABLE_BITS
++ hex "PV user changeable bits mask"
++ depends on ETRAX_VIRTUAL_GPIO
++ default "0x0000"
++ help
++ This is a bitmask (16 bits) with information of what bits in PV
++ that a user can change the value on using ioctl's.
++ Bit set = changeable.
++
+ config ETRAX_IDE
+ bool "ATA/IDE support"
+ depends on ETRAX_ARCH_V32
+@@ -603,11 +777,11 @@
+ select HOTPLUG
+ select PCCARD_NONSTATIC
+ help
+- Enabled the ETRAX Carbus driver.
++ Enabled the ETRAX Carbus driver.
+
+ config PCI
+ bool
+- depends on ETRAX_CARDBUS
++ depends on ETRAX_CARDBUS
+ default y
+
+ config ETRAX_IOP_FW_LOAD
+@@ -623,3 +797,175 @@
+ help
+ This option enables a driver for the stream co-processor
+ for cryptographic operations.
++
++source drivers/mmc/Kconfig
++
++config ETRAX_SPI_MMC
++# Make this one of several "choices" (possible simultaneously but
++# suggested uniquely) when an IOP driver emerges for "real" MMC/SD
++# protocol support.
++ tristate
++ depends on MMC
++ default MMC
++ select SPI
++ select MMC_SPI
++ select ETRAX_SPI_MMC_BOARD
++
++# For the parts that can't be a module (due to restrictions in
++# framework elsewhere).
++config ETRAX_SPI_MMC_BOARD
++ boolean
++ default n
++
++# While the board info is MMC_SPI only, the drivers are written to be
++# independent of MMC_SPI, so we'll keep SPI non-dependent on the
++# MMC_SPI config choices (well, except for a single depends-on-line
++# for the board-info file until a separate non-MMC SPI board file
++# emerges).
++# FIXME: When that happens, we'll need to be able to ask for and
++# configure non-MMC SPI ports together with MMC_SPI ports (if multiple
++# SPI ports are enabled).
++
++config ETRAX_SPI_SSER0
++ tristate "SPI using synchronous serial port 0 (sser0)"
++ depends on ETRAX_SPI_MMC
++ default m if MMC_SPI=m
++ default y if MMC_SPI=y
++ default y if MMC_SPI=n
++ select SPI_ETRAX_SSER
++ help
++ Say Y for an MMC/SD socket connected to synchronous serial port 0,
++ or for devices using the SPI protocol on that port. Say m if you
++ want to build it as a module, which will be named spi_crisv32_sser.
++ (You need to select MMC separately.)
++
++config ETRAX_SPI_SSER0_DMA
++ bool "DMA for SPI on sser0 enabled"
++ depends on ETRAX_SPI_SSER0
++ depends on !ETRAX_SERIAL_PORT1_DMA4_OUT && !ETRAX_SERIAL_PORT1_DMA5_IN
++ default y
++ help
++ Say Y if using DMA (dma4/dma5) for SPI on synchronous serial port 0.
++
++config ETRAX_SPI_MMC_CD_SSER0_PIN
++ string "MMC/SD card detect pin for SPI on sser0"
++ depends on ETRAX_SPI_SSER0 && MMC_SPI
++ default "pd11"
++ help
++ The pin to use for SD/MMC card detect. This pin should be pulled up
++ and grounded when a card is present. If defined as " " (space), no
++ pin is selected. A card must then always be inserted for proper
++ action.
++
++config ETRAX_SPI_MMC_WP_SSER0_PIN
++ string "MMC/SD card write-protect pin for SPI on sser0"
++ depends on ETRAX_SPI_SSER0 && MMC_SPI
++ default "pd10"
++ help
++ The pin to use for the SD/MMC write-protect signal for a memory
++ card. If defined as " " (space), the card is considered writable.
++
++config ETRAX_SPI_SSER1
++ tristate "SPI using synchronous serial port 1 (sser1)"
++ depends on ETRAX_SPI_MMC
++ default m if MMC_SPI=m && ETRAX_SPI_SSER0=n
++ default y if MMC_SPI=y && ETRAX_SPI_SSER0=n
++ default y if MMC_SPI=n && ETRAX_SPI_SSER0=n
++ select SPI_ETRAX_SSER
++ help
++ Say Y for an MMC/SD socket connected to synchronous serial port 1,
++ or for devices using the SPI protocol on that port. Say m if you
++ want to build it as a module, which will be named spi_crisv32_sser.
++ (You need to select MMC separately.)
++
++config ETRAX_SPI_SSER1_DMA
++ bool "DMA for SPI on sser1 enabled"
++ depends on ETRAX_SPI_SSER1 && !ETRAX_ETHERNET_IFACE1
++ depends on !ETRAX_SERIAL_PORT0_DMA6_OUT && !ETRAX_SERIAL_PORT0_DMA7_IN
++ default y
++ help
++ Say Y if using DMA (dma6/dma7) for SPI on synchronous serial port 1.
++
++config ETRAX_SPI_MMC_CD_SSER1_PIN
++ string "MMC/SD card detect pin for SPI on sser1"
++ depends on ETRAX_SPI_SSER1 && MMC_SPI
++ default "pd12"
++ help
++ The pin to use for SD/MMC card detect. This pin should be pulled up
++ and grounded when a card is present. If defined as " " (space), no
++ pin is selected. A card must then always be inserted for proper
++ action.
++
++config ETRAX_SPI_MMC_WP_SSER1_PIN
++ string "MMC/SD card write-protect pin for SPI on sser1"
++ depends on ETRAX_SPI_SSER1 && MMC_SPI
++ default "pd9"
++ help
++ The pin to use for the SD/MMC write-protect signal for a memory
++ card. If defined as " " (space), the card is considered writable.
++
++config ETRAX_SPI_GPIO
++ tristate "Bitbanged SPI using gpio pins"
++ depends on ETRAX_SPI_MMC
++ select SPI_ETRAX_GPIO
++ default m if MMC_SPI=m && ETRAX_SPI_SSER0=n && ETRAX_SPI_SSER1=n
++ default y if MMC_SPI=y && ETRAX_SPI_SSER0=n && ETRAX_SPI_SSER1=n
++ default y if MMC_SPI=n && ETRAX_SPI_SSER0=n && ETRAX_SPI_SSER1=n
++ help
++ Say Y for an MMC/SD socket connected to general I/O pins (but not
++ a complete synchronous serial ports), or for devices using the SPI
++ protocol on general I/O pins. Slow and slows down the system.
++ Say m to build it as a module, which will be called spi_crisv32_gpio.
++ (You need to select MMC separately.)
++
++# The default match that of sser0, only because that's how it was tested.
++config ETRAX_SPI_CS_PIN
++ string "SPI chip select pin"
++ depends on ETRAX_SPI_GPIO
++ default "pc3"
++ help
++ The pin to use for SPI chip select.
++
++config ETRAX_SPI_CLK_PIN
++ string "SPI clock pin"
++ depends on ETRAX_SPI_GPIO
++ default "pc1"
++ help
++ The pin to use for the SPI clock.
++
++config ETRAX_SPI_DATAIN_PIN
++ string "SPI MISO (data in) pin"
++ depends on ETRAX_SPI_GPIO
++ default "pc16"
++ help
++ The pin to use for SPI data in from the device.
++
++config ETRAX_SPI_DATAOUT_PIN
++ string "SPI MOSI (data out) pin"
++ depends on ETRAX_SPI_GPIO
++ default "pc0"
++ help
++ The pin to use for SPI data out to the device.
++
++config ETRAX_SPI_MMC_CD_GPIO_PIN
++ string "MMC/SD card detect pin for SPI using gpio (space for none)"
++ depends on ETRAX_SPI_GPIO && MMC_SPI
++ default "pd11"
++ help
++ The pin to use for SD/MMC card detect. This pin should be pulled up
++ and grounded when a card is present. If defined as " " (space), no
++ pin is selected. A card must then always be inserted for proper
++ action.
++
++config ETRAX_SPI_MMC_WP_GPIO_PIN
++ string "MMC/SD card write-protect pin for SPI using gpio (space for none)"
++ depends on ETRAX_SPI_GPIO && MMC_SPI
++ default "pd10"
++ help
++ The pin to use for the SD/MMC write-protect signal for a memory
++ card. If defined as " " (space), the card is considered writable.
++
++# Avoid choices causing non-working configs by conditionalizing the inclusion.
++if ETRAX_SPI_MMC
++source drivers/spi/Kconfig
++endif
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/drivers/Makefile linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/Makefile
+--- linux-2.6.19.2.old/arch/cris/arch-v32/drivers/Makefile 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/Makefile 2007-01-29 16:14:16.000000000 +0100
+@@ -11,3 +11,4 @@
+ obj-$(CONFIG_ETRAX_I2C) += i2c.o
+ obj-$(CONFIG_ETRAX_SYNCHRONOUS_SERIAL) += sync_serial.o
+ obj-$(CONFIG_PCI) += pci/
++obj-$(CONFIG_ETRAX_SPI_MMC_BOARD) += board_mmcspi.o
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/drivers/axisflashmap.c linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/axisflashmap.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/drivers/axisflashmap.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/axisflashmap.c 2007-02-06 17:37:50.000000000 +0100
+@@ -11,7 +11,7 @@
+ * partition split defined below.
+ *
+ * Copy of os/lx25/arch/cris/arch-v10/drivers/axisflashmap.c 1.5
+- * with minor changes.
++ * with quite a few changes now.
+ *
+ */
+
+@@ -27,6 +27,8 @@
+ #include <linux/mtd/mtdram.h>
+ #include <linux/mtd/partitions.h>
+
++#include <linux/cramfs_fs.h>
++
+ #include <asm/arch/hwregs/config_defs.h>
+ #include <asm/axisflashmap.h>
+ #include <asm/mmu.h>
+@@ -37,16 +39,24 @@
+ #define FLASH_UNCACHED_ADDR KSEG_E
+ #define FLASH_CACHED_ADDR KSEG_F
+
++#define PAGESIZE (512)
++
+ #if CONFIG_ETRAX_FLASH_BUSWIDTH==1
+ #define flash_data __u8
+ #elif CONFIG_ETRAX_FLASH_BUSWIDTH==2
+ #define flash_data __u16
+ #elif CONFIG_ETRAX_FLASH_BUSWIDTH==4
+-#define flash_data __u16
++#define flash_data __u32
+ #endif
+
+ /* From head.S */
+-extern unsigned long romfs_start, romfs_length, romfs_in_flash;
++extern unsigned long romfs_in_flash; /* 1 when romfs_start, _length in flash */
++extern unsigned long romfs_start, romfs_length;
++extern unsigned long nand_boot; /* 1 when booted from nand flash */
++
++struct partition_name {
++ char name[6];
++};
+
+ /* The master mtd for the entire flash. */
+ struct mtd_info* axisflash_mtd = NULL;
+@@ -112,32 +122,20 @@
+ .map_priv_1 = FLASH_UNCACHED_ADDR + MEM_CSE0_SIZE
+ };
+
+-/* If no partition-table was found, we use this default-set. */
+-#define MAX_PARTITIONS 7
+-#define NUM_DEFAULT_PARTITIONS 3
++#define MAX_PARTITIONS 7
++#ifdef CONFIG_ETRAX_NANDBOOT
++#define NUM_DEFAULT_PARTITIONS 4
++#define DEFAULT_ROOTFS_PARTITION_NO 2
++#define DEFAULT_MEDIA_SIZE 0x2000000 /* 32 megs */
++#else
++#define NUM_DEFAULT_PARTITIONS 3
++#define DEFAULT_ROOTFS_PARTITION_NO (-1)
++#define DEFAULT_MEDIA_SIZE 0x800000 /* 8 megs */
++#endif
+
+-/*
+- * Default flash size is 2MB. CONFIG_ETRAX_PTABLE_SECTOR is most likely the
+- * size of one flash block and "filesystem"-partition needs 5 blocks to be able
+- * to use JFFS.
+- */
+-static struct mtd_partition axis_default_partitions[NUM_DEFAULT_PARTITIONS] = {
+- {
+- .name = "boot firmware",
+- .size = CONFIG_ETRAX_PTABLE_SECTOR,
+- .offset = 0
+- },
+- {
+- .name = "kernel",
+- .size = 0x200000 - (6 * CONFIG_ETRAX_PTABLE_SECTOR),
+- .offset = CONFIG_ETRAX_PTABLE_SECTOR
+- },
+- {
+- .name = "filesystem",
+- .size = 5 * CONFIG_ETRAX_PTABLE_SECTOR,
+- .offset = 0x200000 - (5 * CONFIG_ETRAX_PTABLE_SECTOR)
+- }
+-};
++#if (MAX_PARTITIONS < NUM_DEFAULT_PARTITIONS)
++#error MAX_PARTITIONS must be >= than NUM_DEFAULT_PARTITIONS
++#endif
+
+ /* Initialize the ones normally used. */
+ static struct mtd_partition axis_partitions[MAX_PARTITIONS] = {
+@@ -178,6 +176,56 @@
+ },
+ };
+
++
++/* If no partition-table was found, we use this default-set.
++ * Default flash size is 8MB (NOR). CONFIG_ETRAX_PTABLE_SECTOR is most
++ * likely the size of one flash block and "filesystem"-partition needs
++ * to be >=5 blocks to be able to use JFFS.
++ */
++static struct mtd_partition axis_default_partitions[NUM_DEFAULT_PARTITIONS] = {
++ {
++ .name = "boot firmware",
++ .size = CONFIG_ETRAX_PTABLE_SECTOR,
++ .offset = 0
++ },
++ {
++ .name = "kernel",
++ .size = 10 * CONFIG_ETRAX_PTABLE_SECTOR,
++ .offset = CONFIG_ETRAX_PTABLE_SECTOR
++ },
++#define FILESYSTEM_SECTOR (11 * CONFIG_ETRAX_PTABLE_SECTOR)
++#ifdef CONFIG_ETRAX_NANDBOOT
++ {
++ .name = "rootfs",
++ .size = 10 * CONFIG_ETRAX_PTABLE_SECTOR,
++ .offset = FILESYSTEM_SECTOR
++ },
++#undef FILESYSTEM_SECTOR
++#define FILESYSTEM_SECTOR (21 * CONFIG_ETRAX_PTABLE_SECTOR)
++#endif
++ {
++ .name = "rwfs",
++ .size = DEFAULT_MEDIA_SIZE - FILESYSTEM_SECTOR,
++ .offset = FILESYSTEM_SECTOR
++ }
++};
++
++#ifdef CONFIG_ETRAX_AXISFLASHMAP_MTD0WHOLE
++/* Main flash device */
++static struct mtd_partition main_partition = {
++ .name = "main",
++ .size = 0,
++ .offset = 0
++};
++#endif
++
++/* Auxilliary partition if we find another flash */
++static struct mtd_partition aux_partition = {
++ .name = "aux",
++ .size = 0,
++ .offset = 0
++};
++
+ /*
+ * Probe a chip select for AMD-compatible (JEDEC) or CFI-compatible flash
+ * chips in that order (because the amd_flash-driver is faster).
+@@ -186,23 +234,23 @@
+ {
+ struct mtd_info *mtd_cs = NULL;
+
+- printk(KERN_INFO
++ printk(KERN_INFO
+ "%s: Probing a 0x%08lx bytes large window at 0x%08lx.\n",
+ map_cs->name, map_cs->size, map_cs->map_priv_1);
+
+-#ifdef CONFIG_MTD_AMDSTD
+- mtd_cs = do_map_probe("amd_flash", map_cs);
+-#endif
+ #ifdef CONFIG_MTD_CFI
++ mtd_cs = do_map_probe("cfi_probe", map_cs);
++#endif
++#ifdef CONFIG_MTD_JEDECPROBE
+ if (!mtd_cs) {
+- mtd_cs = do_map_probe("cfi_probe", map_cs);
++ mtd_cs = do_map_probe("jedec_probe", map_cs);
+ }
+ #endif
+
+ return mtd_cs;
+ }
+
+-/*
++/*
+ * Probe each chip select individually for flash chips. If there are chips on
+ * both cse0 and cse1, the mtd_info structs will be concatenated to one struct
+ * so that MTD partitions can cross chip boundries.
+@@ -217,22 +265,17 @@
+ {
+ struct mtd_info *mtd_cse0;
+ struct mtd_info *mtd_cse1;
+- struct mtd_info *mtd_nand = NULL;
+ struct mtd_info *mtd_total;
+- struct mtd_info *mtds[3];
++ struct mtd_info *mtds[2];
+ int count = 0;
+
+ if ((mtd_cse0 = probe_cs(&map_cse0)) != NULL)
+ mtds[count++] = mtd_cse0;
+ if ((mtd_cse1 = probe_cs(&map_cse1)) != NULL)
+ mtds[count++] = mtd_cse1;
++
+
+-#ifdef CONFIG_ETRAX_NANDFLASH
+- if ((mtd_nand = crisv32_nand_flash_probe()) != NULL)
+- mtds[count++] = mtd_nand;
+-#endif
+-
+- if (!mtd_cse0 && !mtd_cse1 && !mtd_nand) {
++ if (!mtd_cse0 && !mtd_cse1) {
+ /* No chip found. */
+ return NULL;
+ }
+@@ -248,7 +291,7 @@
+ */
+ mtd_total = mtd_concat_create(mtds,
+ count,
+- "cse0+cse1+nand");
++ "cse0+cse1");
+ #else
+ printk(KERN_ERR "%s and %s: Cannot concatenate due to kernel "
+ "(mis)configuration!\n", map_cse0.name, map_cse1.name);
+@@ -260,57 +303,155 @@
+
+ /* The best we can do now is to only use what we found
+ * at cse0.
+- */
++ */
+ mtd_total = mtd_cse0;
+ map_destroy(mtd_cse1);
+ }
+ } else {
+- mtd_total = mtd_cse0? mtd_cse0 : mtd_cse1 ? mtd_cse1 : mtd_nand;
+-
++ mtd_total = mtd_cse0 ? mtd_cse0 : mtd_cse1;
++
+ }
+
+ return mtd_total;
+ }
+
+-extern unsigned long crisv32_nand_boot;
+-extern unsigned long crisv32_nand_cramfs_offset;
+-
+ /*
+ * Probe the flash chip(s) and, if it succeeds, read the partition-table
+ * and register the partitions with MTD.
+ */
+ static int __init init_axis_flash(void)
+ {
+- struct mtd_info *mymtd;
++ struct mtd_info *main_mtd;
++ struct mtd_info *aux_mtd = NULL;
+ int err = 0;
+ int pidx = 0;
+ struct partitiontable_head *ptable_head = NULL;
+ struct partitiontable_entry *ptable;
+- int use_default_ptable = 1; /* Until proven otherwise. */
+- const char *pmsg = KERN_INFO " /dev/flash%d at 0x%08x, size 0x%08x\n";
+- static char page[512];
++ int ptable_ok = 0;
++ static char page[PAGESIZE];
+ size_t len;
++ int ram_rootfs_partition = -1; /* -1 => no RAM rootfs partition */
++ int part;
++
++ /* We need a root fs. If it resides in RAM, we need to use an
++ * MTDRAM device, so it must be enabled in the kernel config,
++ * but its size must be configured as 0 so as not to conflict
++ * with our usage.
++ */
++#if !defined(CONFIG_MTD_MTDRAM) || (CONFIG_MTDRAM_TOTAL_SIZE != 0) || (CONFIG_MTDRAM_ABS_POS != 0)
++ if (!romfs_in_flash && !nand_boot) {
++ printk(KERN_EMERG "axisflashmap: Cannot create an MTD RAM "
++ "device; configure CONFIG_MTD_MTDRAM with size = 0!\n");
++ panic("This kernel cannot boot from RAM!\n");
++ }
++#endif
+
+ #ifndef CONFIG_ETRAXFS_SIM
+- mymtd = flash_probe();
+- mymtd->read(mymtd, CONFIG_ETRAX_PTABLE_SECTOR, 512, &len, page);
+- ptable_head = (struct partitiontable_head *)(page + PARTITION_TABLE_OFFSET);
++ main_mtd = flash_probe();
++ if (main_mtd)
++ printk(KERN_INFO "%s: 0x%08x bytes of NOR flash memory.\n",
++ main_mtd->name, main_mtd->size);
++
++#ifdef CONFIG_ETRAX_NANDFLASH
++ aux_mtd = crisv32_nand_flash_probe();
++ if (aux_mtd)
++ printk(KERN_INFO "%s: 0x%08x bytes of NAND flash memory.\n",
++ aux_mtd->name, aux_mtd->size);
+
+- if (!mymtd) {
++#ifdef CONFIG_ETRAX_NANDBOOT
++ {
++ struct mtd_info *tmp_mtd;
++
++ printk(KERN_INFO "axisflashmap: Set to boot from NAND flash, "
++ "making NAND flash primary device.\n");
++ tmp_mtd = main_mtd;
++ main_mtd = aux_mtd;
++ aux_mtd = tmp_mtd;
++ }
++#endif /* CONFIG_ETRAX_NANDBOOT */
++#endif /* CONFIG_ETRAX_NANDFLASH */
++
++ if (!main_mtd && !aux_mtd) {
+ /* There's no reason to use this module if no flash chip can
+ * be identified. Make sure that's understood.
+ */
+ printk(KERN_INFO "axisflashmap: Found no flash chip.\n");
+- } else {
+- printk(KERN_INFO "%s: 0x%08x bytes of flash memory.\n",
+- mymtd->name, mymtd->size);
+- axisflash_mtd = mymtd;
+ }
+
+- if (mymtd) {
+- mymtd->owner = THIS_MODULE;
++#if 0 /* Dump flash memory so we can see what is going on */
++ if (main_mtd) {
++ int sectoraddr, i;
++ for (sectoraddr = 0; sectoraddr < 2*65536+4096; sectoraddr += PAGESIZE) {
++ main_mtd->read(main_mtd, sectoraddr, PAGESIZE, &len, page);
++ printk(KERN_INFO
++ "Sector at %d (length %d):\n",
++ sectoraddr, len);
++ for (i = 0; i < PAGESIZE; i += 16) {
++ printk(KERN_INFO
++ "%02x %02x %02x %02x %02x %02x %02x %02x "
++ "%02x %02x %02x %02x %02x %02x %02x %02x\n",
++ page[i] & 255, page[i+1] & 255,
++ page[i+2] & 255, page[i+3] & 255,
++ page[i+4] & 255, page[i+5] & 255,
++ page[i+6] & 255, page[i+7] & 255,
++ page[i+8] & 255, page[i+9] & 255,
++ page[i+10] & 255, page[i+11] & 255,
++ page[i+12] & 255, page[i+13] & 255,
++ page[i+14] & 255, page[i+15] & 255);
++ }
++
++ }
++ }
++#endif
++
++ if (main_mtd) {
++ main_mtd->owner = THIS_MODULE;
++ axisflash_mtd = main_mtd;
++
++ loff_t ptable_sector = CONFIG_ETRAX_PTABLE_SECTOR;
++
++ pidx++; /* First partition (rescue) is always set to the default. */
++#ifdef CONFIG_ETRAX_NANDBOOT
++ /* We know where the partition table should be located,
++ * it will be in first good block after that.
++ */
++ int blockstat;
++ do {
++ blockstat = main_mtd->block_isbad(main_mtd, ptable_sector);
++ if (blockstat < 0)
++ ptable_sector = 0; /* read error */
++ else if (blockstat)
++ ptable_sector += main_mtd->erasesize;
++ } while (blockstat && ptable_sector);
++#endif
++ if (ptable_sector) {
++ main_mtd->read(main_mtd, ptable_sector, PAGESIZE, &len, page);
++ ptable_head = &((struct partitiontable *) page)->head;
++ }
++
++#if 0 /* Dump partition table so we can see what is going on */
++ printk(KERN_INFO
++ "axisflashmap: flash read %d bytes at 0x%08x, data: "
++ "%02x %02x %02x %02x %02x %02x %02x %02x\n",
++ len, CONFIG_ETRAX_PTABLE_SECTOR,
++ page[0] & 255, page[1] & 255,
++ page[2] & 255, page[3] & 255,
++ page[4] & 255, page[5] & 255,
++ page[6] & 255, page[7] & 255);
++ printk(KERN_INFO
++ "axisflashmap: partition table offset %d, data: "
++ "%02x %02x %02x %02x %02x %02x %02x %02x\n",
++ PARTITION_TABLE_OFFSET,
++ page[PARTITION_TABLE_OFFSET+0] & 255,
++ page[PARTITION_TABLE_OFFSET+1] & 255,
++ page[PARTITION_TABLE_OFFSET+2] & 255,
++ page[PARTITION_TABLE_OFFSET+3] & 255,
++ page[PARTITION_TABLE_OFFSET+4] & 255,
++ page[PARTITION_TABLE_OFFSET+5] & 255,
++ page[PARTITION_TABLE_OFFSET+6] & 255,
++ page[PARTITION_TABLE_OFFSET+7] & 255);
++#endif
+ }
+- pidx++; /* First partition is always set to the default. */
+
+ if (ptable_head && (ptable_head->magic == PARTITION_TABLE_MAGIC)
+ && (ptable_head->size <
+@@ -323,7 +464,6 @@
+ /* Looks like a start, sane length and end of a
+ * partition table, lets check csum etc.
+ */
+- int ptable_ok = 0;
+ struct partitiontable_entry *max_addr =
+ (struct partitiontable_entry *)
+ ((unsigned long)ptable_head + sizeof(*ptable_head) +
+@@ -331,7 +471,7 @@
+ unsigned long offset = CONFIG_ETRAX_PTABLE_SECTOR;
+ unsigned char *p;
+ unsigned long csum = 0;
+-
++
+ ptable = (struct partitiontable_entry *)
+ ((unsigned long)ptable_head + sizeof(*ptable_head));
+
+@@ -343,108 +483,177 @@
+ csum += *p++;
+ csum += *p++;
+ csum += *p++;
+- }
++ }
+ ptable_ok = (csum == ptable_head->checksum);
+
+ /* Read the entries and use/show the info. */
+- printk(KERN_INFO " Found a%s partition table at 0x%p-0x%p.\n",
++ printk(KERN_INFO "axisflashmap: "
++ "Found a%s partition table at 0x%p-0x%p.\n",
+ (ptable_ok ? " valid" : "n invalid"), ptable_head,
+ max_addr);
+
+ /* We have found a working bootblock. Now read the
+- * partition table. Scan the table. It ends when
+- * there is 0xffffffff, that is, empty flash.
++ * partition table. Scan the table. It ends with 0xffffffff.
+ */
+ while (ptable_ok
+- && ptable->offset != 0xffffffff
++ && ptable->offset != PARTITIONTABLE_END_MARKER
+ && ptable < max_addr
+- && pidx < MAX_PARTITIONS) {
++ && pidx < MAX_PARTITIONS - 1) {
+
+- axis_partitions[pidx].offset = offset + ptable->offset + (crisv32_nand_boot ? 16384 : 0);
+- axis_partitions[pidx].size = ptable->size;
+-
+- printk(pmsg, pidx, axis_partitions[pidx].offset,
+- axis_partitions[pidx].size);
++ axis_partitions[pidx].offset = offset + ptable->offset;
++#ifdef CONFIG_ETRAX_NANDFLASH
++ if (main_mtd->type == MTD_NANDFLASH) {
++ axis_partitions[pidx].size =
++ (((ptable+1)->offset ==
++ PARTITIONTABLE_END_MARKER) ?
++ main_mtd->size :
++ ((ptable+1)->offset + offset)) -
++ (ptable->offset + offset);
++
++ } else
++#endif /* CONFIG_ETRAX_NANDFLASH */
++ axis_partitions[pidx].size = ptable->size;
++#ifdef CONFIG_ETRAX_NANDBOOT
++ /* Save partition number of jffs2 ro partition.
++ * Needed if RAM booting or root file system in RAM.
++ */
++ if (!nand_boot &&
++ ram_rootfs_partition < 0 && /* not already set */
++ ptable->type == PARTITION_TYPE_JFFS2 &&
++ (ptable->flags & PARTITION_FLAGS_READONLY_MASK) ==
++ PARTITION_FLAGS_READONLY)
++ ram_rootfs_partition = pidx;
++#endif /* CONFIG_ETRAX_NANDBOOT */
+ pidx++;
+ ptable++;
+ }
+- use_default_ptable = !ptable_ok;
+ }
+
+- if (romfs_in_flash) {
+- /* Add an overlapping device for the root partition (romfs). */
++ /* Decide whether to use default partition table. */
++ /* Only use default table if we actually have a device (main_mtd) */
+
+- axis_partitions[pidx].name = "romfs";
+- if (crisv32_nand_boot) {
+- char* data = kmalloc(1024, GFP_KERNEL);
+- int len;
+- int offset = crisv32_nand_cramfs_offset & ~(1024-1);
+- char* tmp;
+-
+- mymtd->read(mymtd, offset, 1024, &len, data);
+- tmp = &data[crisv32_nand_cramfs_offset % 512];
+- axis_partitions[pidx].size = *(unsigned*)(tmp + 4);
+- axis_partitions[pidx].offset = crisv32_nand_cramfs_offset;
+- kfree(data);
+- } else {
+- axis_partitions[pidx].size = romfs_length;
+- axis_partitions[pidx].offset = romfs_start - FLASH_CACHED_ADDR;
+- }
++ struct mtd_partition *partition = &axis_partitions[0];
++ if (main_mtd && !ptable_ok) {
++ memcpy(axis_partitions, axis_default_partitions,
++ sizeof(axis_default_partitions));
++ pidx = NUM_DEFAULT_PARTITIONS;
++ ram_rootfs_partition = DEFAULT_ROOTFS_PARTITION_NO;
++ }
+
++ /* Add artificial partitions for rootfs if necessary */
++ if (romfs_in_flash) {
++ /* rootfs is in directly accessible flash memory = NOR flash.
++ Add an overlapping device for the rootfs partition. */
++ printk(KERN_INFO "axisflashmap: Adding partition for "
++ "overlapping root file system image\n");
++ axis_partitions[pidx].size = romfs_length;
++ axis_partitions[pidx].offset = romfs_start - FLASH_CACHED_ADDR;
++ axis_partitions[pidx].name = "romfs";
+ axis_partitions[pidx].mask_flags |= MTD_WRITEABLE;
+-
+- printk(KERN_INFO
+- " Adding readonly flash partition for romfs image:\n");
+- printk(pmsg, pidx, axis_partitions[pidx].offset,
+- axis_partitions[pidx].size);
++ ram_rootfs_partition = -1;
+ pidx++;
+ }
+-
+- if (mymtd) {
+- if (use_default_ptable) {
+- printk(KERN_INFO " Using default partition table.\n");
+- err = add_mtd_partitions(mymtd, axis_default_partitions,
+- NUM_DEFAULT_PARTITIONS);
+- } else {
+- err = add_mtd_partitions(mymtd, axis_partitions, pidx);
++ else if (romfs_length && !nand_boot) {
++ /* romfs exists in memory, but not in flash, so must be in RAM.
++ * Configure an MTDRAM partition. */
++ if (ram_rootfs_partition < 0) { /* none set yet */
++ ram_rootfs_partition = pidx; /* put it at the end */
++ pidx++;
+ }
++ printk(KERN_INFO "axisflashmap: Adding partition for "
++ "root file system image in RAM\n");
++ axis_partitions[ram_rootfs_partition].size = romfs_length;
++ axis_partitions[ram_rootfs_partition].offset = romfs_start;
++ axis_partitions[ram_rootfs_partition].name = "romfs";
++ axis_partitions[ram_rootfs_partition].mask_flags |=
++ MTD_WRITEABLE;
++ }
+
+- if (err) {
+- panic("axisflashmap could not add MTD partitions!\n");
+- }
++#ifdef CONFIG_ETRAX_AXISFLASHMAP_MTD0WHOLE
++ if (main_mtd) {
++ main_partition.size = main_mtd->size;
++ err = add_mtd_partitions(main_mtd, &main_partition, 1);
++ if (err)
++ panic("axisflashmap: Could not initialize "
++ "partition for whole main mtd device!\n");
+ }
+-/* CONFIG_EXTRAXFS_SIM */
+ #endif
+
+- if (!romfs_in_flash) {
+- /* Create an RAM device for the root partition (romfs). */
++ /* Now, register all partitions with mtd.
++ * We do this one at a time so we can slip in an MTDRAM device
++ * in the proper place if required. */
++
++ for (part = 0; part < pidx; part++) {
++ if (part == ram_rootfs_partition) {
++ /* add MTDRAM partition here */
++ struct mtd_info *mtd_ram;
++
++ mtd_ram = kmalloc(sizeof(struct mtd_info), GFP_KERNEL);
++ if (!mtd_ram)
++ panic("axisflashmap: Couldn't allocate memory "
++ "for mtd_info!\n");
++ printk(KERN_INFO "axisflashmap: Adding RAM partition "
++ "for rootfs image.\n");
++ err = mtdram_init_device(mtd_ram,
++ (void *)partition[part].offset,
++ partition[part].size,
++ partition[part].name);
++ if (err)
++ panic("axisflashmap: Could not initialize "
++ "MTD RAM device!\n");
++ /* JFFS2 likes to have an erasesize. Keep potential
++ * JFFS2 rootfs happy by providing one. Since image
++ * was most likely created for main mtd, use that
++ * erasesize, if available. Otherwise, make a guess. */
++ mtd_ram->erasesize = (main_mtd ? main_mtd->erasesize :
++ CONFIG_ETRAX_PTABLE_SECTOR);
++ } else {
++ err = add_mtd_partitions(main_mtd,
++ &partition[part], 1);
++ if (err)
++ panic("axisflashmap: Could not add mtd "
++ "partition %d\n", part);
++ }
++ }
+
+-#if !defined(CONFIG_MTD_MTDRAM) || (CONFIG_MTDRAM_TOTAL_SIZE != 0) || (CONFIG_MTDRAM_ABS_POS != 0)
+- /* No use trying to boot this kernel from RAM. Panic! */
+- printk(KERN_EMERG "axisflashmap: Cannot create an MTD RAM "
+- "device due to kernel (mis)configuration!\n");
+- panic("This kernel cannot boot from RAM!\n");
+-#else
+- struct mtd_info *mtd_ram;
++#endif /* CONFIG_EXTRAXFS_SIM */
+
+- mtd_ram = (struct mtd_info *)kmalloc(sizeof(struct mtd_info),
+- GFP_KERNEL);
+- if (!mtd_ram) {
+- panic("axisflashmap couldn't allocate memory for "
+- "mtd_info!\n");
+- }
++#ifdef CONFIG_ETRAXFS_SIM
++ /* For simulator, always use a RAM partition.
++ * The rootfs will be found after the kernel in RAM,
++ * with romfs_start and romfs_end indicating location and size.
++ */
++ struct mtd_info *mtd_ram;
++
++ mtd_ram = (struct mtd_info *)kmalloc(sizeof(struct mtd_info),
++ GFP_KERNEL);
++ if (!mtd_ram) {
++ panic("axisflashmap: Couldn't allocate memory for "
++ "mtd_info!\n");
++ }
+
+- printk(KERN_INFO " Adding RAM partition for romfs image:\n");
+- printk(pmsg, pidx, romfs_start, romfs_length);
++ printk(KERN_INFO "axisflashmap: Adding RAM partition for romfs, "
++ "at %u, size %u\n",
++ (unsigned) romfs_start, (unsigned) romfs_length);
++
++ err = mtdram_init_device(mtd_ram, (void*)romfs_start,
++ romfs_length, "romfs");
++ if (err) {
++ panic("axisflashmap: Could not initialize MTD RAM "
++ "device!\n");
++ }
++#endif /* CONFIG_EXTRAXFS_SIM */
++
++#ifndef CONFIG_ETRAXFS_SIM
++ if (aux_mtd) {
++ aux_partition.size = aux_mtd->size;
++ err = add_mtd_partitions(aux_mtd, &aux_partition, 1);
++ if (err)
++ panic("axisflashmap: Could not initialize "
++ "aux mtd device!\n");
+
+- err = mtdram_init_device(mtd_ram, (void*)romfs_start,
+- romfs_length, "romfs");
+- if (err) {
+- panic("axisflashmap could not initialize MTD RAM "
+- "device!\n");
+- }
+-#endif
+ }
++#endif /* CONFIG_EXTRAXFS_SIM */
+
+ return err;
+ }
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/drivers/board_mmcspi.c linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/board_mmcspi.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/drivers/board_mmcspi.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/board_mmcspi.c 2007-01-29 15:51:19.000000000 +0100
+@@ -0,0 +1,686 @@
++/*
++ * Somewhat generic "board-side" code to support SPI drivers for chips
++ * with a CRIS v32 and later. Not really board-specific, and only for
++ * registration of SPI devices for MMC, hence the "mmcspi" part of the
++ * name instead of a proper board name.
++ *
++ * Copyright (c) 2007 Axis Communications AB
++ *
++ * TODO: SDIO interrupt-pin support (though can't be done until
++ * there's support added in both the mmc_spi and the mmc frameworks).
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ */
++
++#include <linux/types.h>
++#include <linux/platform_device.h>
++#include <linux/spi/spi.h>
++#include <linux/spi/mmc_spi.h>
++#include <linux/mmc/host.h>
++#include <asm/arch/board.h>
++#include <asm/arch/pinmux.h>
++#include <asm/arch/dma.h>
++#include <linux/err.h>
++
++#include <asm/io.h>
++
++/* We need some housekeeping. */
++#define CONCAT_(a, b) a ## b
++#define CONCAT(a, b) CONCAT_(a, b)
++#define CONCAT3(a, b, c) CONCAT(CONCAT(a, b), c)
++
++/* Grr. Why not define them as usual in autoconf, #ifdef REVEAL_MODULES? */
++#if !defined(CONFIG_SPI_ETRAX_SSER) && defined(CONFIG_SPI_ETRAX_SSER_MODULE)
++#define CONFIG_SPI_ETRAX_SSER
++#endif
++
++#if !defined(CONFIG_ETRAX_SPI_SSER0) && defined(CONFIG_ETRAX_SPI_SSER0_MODULE)
++#define CONFIG_ETRAX_SPI_SSER0
++#endif
++
++#if !defined(CONFIG_ETRAX_SPI_SSER1) && defined(CONFIG_ETRAX_SPI_SSER1_MODULE)
++#define CONFIG_ETRAX_SPI_SSER1
++#endif
++
++#if !defined(CONFIG_SPI_ETRAX_GPIO) && defined(CONFIG_SPI_ETRAX_GPIO_MODULE)
++#define CONFIG_SPI_ETRAX_GPIO
++#endif
++
++#define CONFIGURED_PIN(x) ((x) != NULL && *(x) != 0 && *(x) != ' ')
++
++/* Helper function to configure an iopin for input. */
++
++static int crisv32_config_pin_in(struct crisv32_iopin *pin, const char *name)
++{
++ int ret = crisv32_io_get_name(pin, name);
++ if (ret)
++ return ret;
++
++ crisv32_io_set_dir(pin, crisv32_io_dir_in);
++ return 0;
++}
++
++/*
++ * Writable data pointed to by the constant parts of each MMC_SPI bus
++ * interface. Should only hold MMC-specific state (for the
++ * MMC-specific pins), nothing SPI-generic.
++ */
++
++struct crisv32_mmc_spi_pinstate {
++ struct crisv32_iopin write_protect_pin;
++ struct crisv32_iopin card_detect_pin;
++
++ /* We must poll for card-detect, which we do each: */
++#define CARD_DETECT_CHECK_INTERVAL (2*HZ)
++ /* We poll using a self-arming workqueue function. */
++ struct work_struct cd_work;
++
++ /* When we detect a change in card presence, we call this
++ * function, supplied by the mmc_spi framework: */
++ irqreturn_t (*detectfunc)(int, void *);
++
++ /*
++ * We call that function with this parameter as the second
++ * one. We must assume the other parameters are unused, as we
++ * don't have an interrupt context.
++ */
++ void *detectfunc_param2;
++
++ /* State for the card-detect worker. */
++ int card_present;
++};
++
++/* Rearming "work" function for card-detect polling. */
++
++static void crisv32_cd_worker(void *x)
++{
++ struct crisv32_mmc_spi_pinstate *state = x;
++
++ /* It's a pull-up, so a card is present when 0. */
++ int card_present = crisv32_io_rd(&state->card_detect_pin) == 0;
++
++ if (card_present != state->card_present) {
++ state->card_present = card_present;
++ state->detectfunc(0, state->detectfunc_param2);
++ }
++ schedule_delayed_work(&state->cd_work, CARD_DETECT_CHECK_INTERVAL);
++}
++
++/* The parts of MMC-specific configuration common to GPIO and SSER. */
++
++static int crisv32_mmcspi_config_common(struct spi_device *spidev,
++ irqreturn_t (*intfunc)(int, void *),
++ struct mmc_host *mmc_host,
++ const struct crisv32_mmc_spi_pindata *pd)
++{
++ int ret = 0;
++ struct crisv32_mmc_spi_pinstate *ps = pd->pinstate;
++
++ /*
++ * If we don't have a card-detect pin, the card must be
++ * present at startup (including insmod/modprobe). No
++ * re-scans are done if no card is present at that time.
++ */
++ if (CONFIGURED_PIN(pd->card_detect)) {
++ ret = crisv32_config_pin_in(&ps->card_detect_pin,
++ pd->card_detect);
++
++ if (ret != 0)
++ goto bad_card_detect;
++
++ /* Need to cast away const from pd, unfortunately. */
++ INIT_WORK(&ps->cd_work, crisv32_cd_worker, (void *) ps);
++ ps->card_present = 1;
++ ps->detectfunc = intfunc;
++ ps->detectfunc_param2 = mmc_host;
++ crisv32_cd_worker(ps);
++ } else
++ ps->detectfunc = NULL;
++
++ /*
++ * We set up for checking for presence of a write-protect pin
++ * as pin.port being non-NULL.
++ */
++ memset(&ps->write_protect_pin, 0, sizeof ps->write_protect_pin);
++ if (CONFIGURED_PIN(pd->write_protect)) {
++ ret = crisv32_config_pin_in(&ps->write_protect_pin,
++ pd->write_protect);
++
++ if (ret != 0)
++ goto bad_write_protect;
++ }
++
++ return 0;
++
++ bad_write_protect:
++ if (ps->detectfunc) {
++ cancel_rearming_delayed_work(&ps->cd_work);
++ ps->detectfunc = NULL;
++ }
++
++ bad_card_detect:
++ return ret;
++}
++
++/* A function to undo crisv32_mmcspi_config_common. */
++
++static void crisv32_mmcspi_deconfig_common(const struct
++ crisv32_mmc_spi_pindata *pd)
++{
++ if (pd->pinstate->detectfunc) {
++ cancel_rearming_delayed_work(&pd->pinstate->cd_work);
++ pd->pinstate->detectfunc = NULL;
++ }
++
++ /* We don't have to undo the pin allocations, being GPIO. */
++}
++
++/* Helper function for write-protect sense. */
++
++static int crisv32_mmcspi_get_ro_helper(struct crisv32_mmc_spi_pinstate *ps)
++{
++ return ps->write_protect_pin.port != NULL
++ && crisv32_io_rd(&ps->write_protect_pin) != 0;
++}
++
++/* The hardware-interface-specific SPI+MMC parts. */
++
++#ifdef CONFIG_SPI_ETRAX_SSER
++static const char crisv32_matching_spi_sser_driver_name[] __init_or_module
++ = "spi_crisv32_sser";
++
++/*
++ * Make up something we can use in tables and function without
++ * #ifdef-cluttering.
++ */
++#ifdef CONFIG_ETRAX_SPI_SSER0_DMA
++#define WITH_ETRAX_SPI_SSER0_DMA 1
++#else
++#define WITH_ETRAX_SPI_SSER0_DMA 0
++#endif
++#ifdef CONFIG_ETRAX_SPI_SSER1_DMA
++#define WITH_ETRAX_SPI_SSER1_DMA 1
++#else
++#define WITH_ETRAX_SPI_SSER1_DMA 0
++#endif
++
++/* Write-protect sense for the SSER interface. */
++
++static int crisv32_mmcspi_sser_get_ro(struct device *dev)
++{
++ struct spi_device *spidev = to_spi_device(dev);
++ struct crisv32_mmc_spi_sser_hwdata *sser_defs
++ = spidev->controller_data;
++ struct crisv32_mmc_spi_pindata *pd = &sser_defs->mmc;
++ return crisv32_mmcspi_get_ro_helper(pd->pinstate);
++}
++
++/* Initialize the MMC-specific parts of the MMC+SPI interface, SSER. */
++
++static int crisv32_mmcspi_sser_init(struct device *dev,
++ irqreturn_t (*intfunc)(int, void *),
++ void *xmmc_host)
++{
++ struct mmc_host *mmc_host = xmmc_host;
++ struct spi_device *spidev = to_spi_device(dev);
++ struct crisv32_mmc_spi_sser_hwdata *sser_defs
++ = spidev->controller_data;
++ int ret = crisv32_mmcspi_config_common(spidev, intfunc, mmc_host,
++ &sser_defs->mmc);
++ if (ret != 0)
++ return ret;
++
++ mmc_host->f_max = spidev->max_speed_hz;
++
++ /*
++ * Let's just set this to ceil(100e6/65536). It wouldn't be
++ * hard to change the base frequency to support down to 450Hz,
++ * but there's no apparent requirement from known hardware.
++ * Would also require adjustments to the SPI code, not just
++ * here.
++ *
++ * On second thought, let's not set f_min unconditionally, as
++ * mmc doesn't treat it as a limit, but as the frequency to
++ * use at initialization. We stick with what mmc_spi sets, if
++ * it fits.
++ */
++ if (mmc_host->f_min < 1526)
++ mmc_host->f_min = 1526;
++
++ dev_info(dev, "CRIS v32 mmc_spi support hooked to SPI on sser%d"
++ " (cd: %s, wp: %s)\n",
++ spidev->master->bus_num,
++ CONFIGURED_PIN(sser_defs->mmc.card_detect)
++ ? sser_defs->mmc.card_detect : "(none)",
++ CONFIGURED_PIN(sser_defs->mmc.write_protect)
++ ? sser_defs->mmc.write_protect : "(none)");
++ return 0;
++}
++
++/* Similarly, to undo crisv32_mmcspi_sser_init. */
++
++static void crisv32_mmcspi_sser_exit(struct device *dev, void *xmmc_host)
++{
++ struct spi_device *spidev = to_spi_device(dev);
++ struct crisv32_mmc_spi_sser_hwdata *sser_defs
++ = spidev->controller_data;
++
++ crisv32_mmcspi_deconfig_common(&sser_defs->mmc);
++}
++
++/*
++ * Connect sser and DMA channels and return the proper numbers to use.
++ *
++ * This function exists really only to avoid having the following constants
++ * tabled: regi_sserN, SSERn_INTR_VECT, pinmux_sserN, SYNC_SERn_TX_DMA_NBR,
++ * SYNC_SERn_RX_DMA_NBR dma_sserN, regi_dmaM, regi_dmaN, DMAm_INTR_VECT,
++ * DMAn_INTR_VECT. I might have missed some. :-)
++ */
++static int crisv32_allocate_sser(struct crisv32_regi_n_int *sserp,
++ struct crisv32_regi_n_int *dmainp,
++ struct crisv32_regi_n_int *dmaoutp,
++ u32 sserno)
++{
++ int ret;
++ u32 regi_sser = sserno == 0 ? regi_sser0 : regi_sser1;
++ u32 sser_irq = sserno == 0 ? SSER0_INTR_VECT : SSER1_INTR_VECT;
++ BUG_ON(sserno > 1 || sserp == NULL);
++
++ ret = crisv32_pinmux_alloc_fixed(sserno == 0
++ ? pinmux_sser0 : pinmux_sser1);
++ if (ret != 0)
++ return ret;
++
++ sserp->regi = regi_sser;
++ sserp->irq = sser_irq;
++
++ if (dmaoutp) {
++ crisv32_request_dma(sserno == 0
++ ? SYNC_SER0_TX_DMA_NBR
++ : SYNC_SER1_TX_DMA_NBR,
++ "SD/MMC SPI dma tr",
++ DMA_VERBOSE_ON_ERROR | DMA_PANIC_ON_ERROR,
++ /* Let's be brave and ask for the
++ max. Except it's simplex, so
++ let's request half the max
++ speed in either direction. */
++ 50 * 1000 * 1000 / 8 / 2,
++ sserno == 0 ? dma_sser0 : dma_sser1);
++ dmaoutp->regi = sserno == 0
++ ? CONCAT(regi_dma, SYNC_SER0_TX_DMA_NBR)
++ : CONCAT(regi_dma, SYNC_SER1_TX_DMA_NBR);
++ dmaoutp->irq = sserno == 0
++ ? CONCAT3(DMA, SYNC_SER0_TX_DMA_NBR, _INTR_VECT)
++ : CONCAT3(DMA, SYNC_SER1_TX_DMA_NBR, _INTR_VECT);
++ }
++
++ if (dmainp) {
++ crisv32_request_dma(sserno == 0
++ ? SYNC_SER0_RX_DMA_NBR
++ : SYNC_SER1_RX_DMA_NBR,
++ "SD/MMC SPI dma rec",
++ DMA_VERBOSE_ON_ERROR | DMA_PANIC_ON_ERROR,
++ 50 * 1000 * 1000 / 8 / 2,
++ sserno == 0 ? dma_sser0 : dma_sser1);
++ dmainp->regi = sserno == 0
++ ? CONCAT(regi_dma, SYNC_SER0_RX_DMA_NBR)
++ : CONCAT(regi_dma, SYNC_SER1_RX_DMA_NBR);
++ dmainp->irq = sserno == 0
++ ? CONCAT3(DMA, SYNC_SER0_RX_DMA_NBR, _INTR_VECT)
++ : CONCAT3(DMA, SYNC_SER1_RX_DMA_NBR, _INTR_VECT);
++ }
++
++ return 0;
++}
++
++/* Undo whatever allocations et. al. that crisv32_allocate_sser did. */
++
++static void crisv32_free_sser(u32 sserno, int with_dma)
++{
++ int ret;
++
++ if (with_dma) {
++ crisv32_free_dma(sserno == 0
++ ? SYNC_SER0_RX_DMA_NBR
++ : SYNC_SER1_RX_DMA_NBR);
++ crisv32_free_dma(sserno == 0
++ ? SYNC_SER0_TX_DMA_NBR
++ : SYNC_SER1_TX_DMA_NBR);
++ }
++
++ ret = crisv32_pinmux_dealloc_fixed(sserno == 0
++ ? pinmux_sser0 : pinmux_sser1);
++
++ if (ret != 0)
++ panic("%s: crisv32_pinmux_dealloc_fixed returned %d\n",
++ __FUNCTION__, ret);
++}
++
++/* Convenience-macro to avoid typos causing diffs between sser ports. */
++
++#define SSER_CDATA(n) \
++ { \
++ { \
++ .using_dma = WITH_ETRAX_SPI_SSER##n##_DMA, \
++ .iface_allocate = crisv32_allocate_sser##n, \
++ .iface_free = crisv32_free_sser##n \
++ }, \
++ { \
++ .card_detect \
++ = CONFIG_ETRAX_SPI_MMC_CD_SSER##n##_PIN,\
++ .write_protect \
++ = CONFIG_ETRAX_SPI_MMC_WP_SSER##n##_PIN,\
++ .pinstate \
++ = &crisv32_mmcspi_sser##n##_pinstate \
++ } \
++ }
++
++#ifdef CONFIG_ETRAX_SPI_SSER0
++
++/* Allocate hardware to go with sser0 and fill in the right numbers. */
++
++static int crisv32_allocate_sser0(struct crisv32_regi_n_int *sserp,
++ struct crisv32_regi_n_int *dmainp,
++ struct crisv32_regi_n_int *dmaoutp)
++{
++ return crisv32_allocate_sser(sserp, dmainp, dmaoutp, 0);
++}
++
++/* Undo those allocations. */
++
++static void crisv32_free_sser0(void)
++{
++ crisv32_free_sser(0, WITH_ETRAX_SPI_SSER0_DMA);
++}
++
++static struct crisv32_mmc_spi_pinstate crisv32_mmcspi_sser0_pinstate;
++static const struct crisv32_mmc_spi_sser_hwdata crisv32_mmcspi_sser0_cdata
++ = SSER_CDATA(0);
++#endif /* CONFIG_ETRAX_SPI_SSER0 */
++
++#ifdef CONFIG_ETRAX_SPI_SSER1
++
++/* Allocate hardware to go with sser0 and fill in the right numbers. */
++
++static int crisv32_allocate_sser1(struct crisv32_regi_n_int *sserp,
++ struct crisv32_regi_n_int *dmainp,
++ struct crisv32_regi_n_int *dmaoutp)
++{
++ return crisv32_allocate_sser(sserp, dmainp, dmaoutp, 1);
++}
++
++/* Undo those allocations. */
++
++static void crisv32_free_sser1(void)
++{
++ crisv32_free_sser(1, WITH_ETRAX_SPI_SSER1_DMA);
++}
++
++static struct crisv32_mmc_spi_pinstate crisv32_mmcspi_sser1_pinstate;
++static const struct crisv32_mmc_spi_sser_hwdata crisv32_mmcspi_sser1_cdata
++ = SSER_CDATA(1);
++
++#endif /* CONFIG_ETRAX_SPI_SSER1 */
++
++static struct mmc_spi_platform_data crisv32_mmcspi_sser_pdata = {
++ .init = crisv32_mmcspi_sser_init,
++ .exit = __devexit_p(crisv32_mmcspi_sser_exit),
++ .detect_delay = 0,
++ .get_ro = crisv32_mmcspi_sser_get_ro,
++ .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
++ .setpower = NULL
++};
++
++#endif /* CONFIG_SPI_ETRAX_SSER */
++
++#ifdef CONFIG_SPI_ETRAX_GPIO
++
++static const char crisv32_matching_spi_gpio_driver_name[] __init_or_module
++ = "spi_crisv32_gpio";
++
++/* Write-protect sense for the GPIO interface. */
++
++static int crisv32_mmcspi_gpio_get_ro(struct device *dev)
++{
++ struct spi_device *spidev = to_spi_device(dev);
++ struct crisv32_mmc_spi_gpio_hwdata *gpio_defs
++ = spidev->controller_data;
++ struct crisv32_mmc_spi_pindata *pd = &gpio_defs->mmc;
++
++ return crisv32_mmcspi_get_ro_helper(pd->pinstate);
++}
++
++/* Initialize the MMC-specific parts of the MMC+SPI interface, GPIO. */
++
++static int crisv32_mmcspi_gpio_init(struct device *dev,
++ irqreturn_t (*intfunc)(int, void *),
++ void *xmmc_host)
++{
++ struct mmc_host *mmc_host = xmmc_host;
++ struct spi_device *spidev = to_spi_device(dev);
++ struct crisv32_mmc_spi_gpio_hwdata *gpio_defs
++ = spidev->controller_data;
++ int ret = crisv32_mmcspi_config_common(spidev, intfunc, mmc_host,
++ &gpio_defs->mmc);
++ if (ret)
++ return ret;
++
++ mmc_host->f_max = spidev->max_speed_hz;
++
++ /*
++ * We don't set f_min, as the mmc code doesn't treat it as a
++ * limit, but as the frequency to use at initialization. We
++ * stick with what mmc_spi sets.
++ */
++ dev_info(dev, "CRIS v32 mmc_spi support hooked to SPI on GPIO"
++ " (bus #%d, cd: %s, wp: %s)\n",
++ spidev->master->bus_num,
++ CONFIGURED_PIN(gpio_defs->mmc.card_detect)
++ ? gpio_defs->mmc.card_detect : "(none)",
++ CONFIGURED_PIN(gpio_defs->mmc.write_protect)
++ ? gpio_defs->mmc.write_protect : "(none)");
++ return 0;
++}
++
++/* Similarly, to undo crisv32_mmcspi_gpio_init. */
++
++static void crisv32_mmcspi_gpio_exit(struct device *dev, void *xmmc_host)
++{
++ struct spi_device *spidev = to_spi_device(dev);
++ struct crisv32_mmc_spi_gpio_hwdata *gpio_defs
++ = spidev->controller_data;
++
++ crisv32_mmcspi_deconfig_common(&gpio_defs->mmc);
++}
++
++static const struct mmc_spi_platform_data crisv32_mmcspi_gpio_pdata = {
++ .init = crisv32_mmcspi_gpio_init,
++ .exit = __devexit_p(crisv32_mmcspi_gpio_exit),
++ .detect_delay = 0,
++ .get_ro = crisv32_mmcspi_gpio_get_ro,
++ .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
++ .setpower = NULL
++};
++
++static struct crisv32_mmc_spi_pinstate crisv32_mmcspi_gpio_pinstate;
++static const struct crisv32_mmc_spi_gpio_hwdata crisv32_mmcspi_gpio_cdata = {
++ {
++ .cs = CONFIG_ETRAX_SPI_CS_PIN,
++ .miso = CONFIG_ETRAX_SPI_DATAIN_PIN,
++ .mosi = CONFIG_ETRAX_SPI_DATAOUT_PIN,
++ .sclk = CONFIG_ETRAX_SPI_CLK_PIN
++ },
++ {
++ .card_detect = CONFIG_ETRAX_SPI_MMC_CD_GPIO_PIN,
++ .write_protect = CONFIG_ETRAX_SPI_MMC_WP_GPIO_PIN,
++ .pinstate = &crisv32_mmcspi_gpio_pinstate
++ }
++};
++#endif /* CONFIG_SPI_ETRAX_GPIO */
++
++struct crisv32_s_b_i_and_driver_info {
++ struct spi_board_info sbi;
++ const char *driver_name;
++
++ /*
++ * We have to adjust the platform device at time of creation
++ * below, to allow the Linux DMA framework to handle DMA. In
++ * the name of simplicity, we state the dma:able property
++ * twice, a bit redundantly; here and in the controller_data
++ * structure pointed to by spi_board_info.
++ */
++ int dma_able;
++};
++
++/* Convenience-macro to avoid typos causing diffs between sser ports. */
++
++#define SSER_CONFIG(n) \
++ { \
++ /* \
++ * No meaningful values for .irq or .chip_select, \
++ * so we leave them out. \
++ */ \
++ { \
++ .modalias = "mmc_spi", \
++ .platform_data \
++ = &crisv32_mmcspi_sser_pdata, \
++ /* \
++ * Casting to avoid a compiler const-warning. \
++ */ \
++ .controller_data \
++ = ((void *) \
++ &crisv32_mmcspi_sser##n##_cdata), \
++ .max_speed_hz = 50 * 1000 * 1000, \
++ .bus_num = n, \
++ /* \
++ * We only provide one mode, so it must be \
++ * default. \
++ */ \
++ .mode = SPI_MODE_3 \
++ }, \
++ crisv32_matching_spi_sser_driver_name, \
++ WITH_ETRAX_SPI_SSER##n##_DMA \
++ }
++
++static const struct crisv32_s_b_i_and_driver_info
++crisv32_mmcspi_devices[] __initdata = {
++#ifdef CONFIG_ETRAX_SPI_SSER0
++ SSER_CONFIG(0),
++#endif
++#ifdef CONFIG_ETRAX_SPI_SSER1
++ SSER_CONFIG(1),
++#endif
++#ifdef CONFIG_SPI_ETRAX_GPIO
++ {
++ {
++ .modalias = "mmc_spi",
++ .platform_data = &crisv32_mmcspi_gpio_pdata,
++ /* Casting to avoid a compiler const-warning. */
++ .controller_data
++ = (void *) &crisv32_mmcspi_gpio_cdata,
++
++ /* No, we can't even reach this number with GPIO. */
++ .max_speed_hz = 5 * 1000 * 1000,
++ .bus_num = 2
++ },
++ crisv32_matching_spi_gpio_driver_name,
++ 0
++ },
++#endif
++};
++
++/* Must not be __initdata. */
++static const char controller_data_ptr_name[] = "controller_data_ptr";
++static u64 allmem_mask = ~(u32) 0;
++
++/*
++ * We have to register the SSER and GPIO "platform_device"s separately
++ * from the "spi_board_info"s in order to have the drivers separated
++ * from the hardware instance info.
++ */
++
++static int __init crisv32_register_mmcspi(void)
++{
++ int ret;
++ void *retp;
++ const struct crisv32_s_b_i_and_driver_info *sbip;
++
++ for (sbip = crisv32_mmcspi_devices;
++ sbip < crisv32_mmcspi_devices
++ + ARRAY_SIZE(crisv32_mmcspi_devices);
++ sbip++) {
++
++ /*
++ * We have to pass the controller data as a device
++ * "resource" (FIXME: too?), so it can be available
++ * for the setup *before* starting the SPI core -
++ * which is where .controller_data makes it to the SPI
++ * structure!
++ */
++ struct resource mmcspi_res = {
++ .start = (resource_size_t) sbip->sbi.controller_data,
++ .end = (resource_size_t) sbip->sbi.controller_data,
++ .name = controller_data_ptr_name
++ };
++
++ /*
++ * Presumably we could pass the irqs and register
++ * addresses and... as individual resources here
++ * instead of privately in spi_board_info
++ * .controller_data, and make that part a bit more
++ * readable. Maybe not worthwhile.
++ */
++ /* Need to cast away const here. FIXME: fix the pdrs API. */
++ retp = platform_device_alloc(sbip->driver_name,
++ sbip->sbi.bus_num);
++ if (IS_ERR_VALUE(PTR_ERR(retp)))
++ return PTR_ERR(retp);
++
++ /*
++ * We can't use platform_device_register_simple as we
++ * want to set stuff in the device to mark that we'd
++ * prefer buffers explicitly passed as DMA-able.
++ * Disabling/omitting the "if" below, cause testing of
++ * the non-DMA-mem execution path of a DMA-capable
++ * driver.
++ */
++ if (sbip->dma_able) {
++ struct platform_device *pdev = retp;
++
++ pdev->dev.dma_mask = &allmem_mask;
++ pdev->dev.coherent_dma_mask = allmem_mask;
++ }
++
++ if ((ret = platform_device_add_resources(retp, &mmcspi_res, 1)) != 0
++ || (ret = platform_device_add(retp)) != 0) {
++ platform_device_put(retp);
++ return ret;
++ }
++
++ /*
++ * The cost of keeping all info rooted at
++ * crisv32_mmcspi_devices is the allocation overhead
++ * for allocating separately each board info (in the
++ * unlikely event that there's more than one).
++ */
++ ret = spi_register_board_info(&sbip->sbi, 1);
++ if (ret != 0)
++ return ret;
++ }
++
++ return 0;
++}
++#ifdef MODULE
++#error "Non-module because spi_register_board_info is one-way; there's no unregister function"
++#endif
++
++/*
++ * Needs to be called before __initcall/module_init because the SPI
++ * bus scanning happens when the actual driver registers with the SPI
++ * machinery (spi_bitbang_start/spi_register_master), not when the
++ * device registers (spi_register_board_info).
++ */
++subsys_initcall(crisv32_register_mmcspi);
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/drivers/cryptocop.c linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/cryptocop.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/drivers/cryptocop.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/cryptocop.c 2007-01-09 10:29:20.000000000 +0100
+@@ -1,4 +1,4 @@
+-/* $Id: cryptocop.c,v 1.13 2005/04/21 17:27:55 henriken Exp $
++/* $Id: cryptocop.c,v 1.22 2007/01/09 09:29:20 starvik Exp $
+ *
+ * Stream co-processor driver for the ETRAX FS
+ *
+@@ -1718,7 +1718,7 @@
+ * i = i + 1
+ * }
+ * i = Nk
+- *
++ *
+ * while (i < (Nb * (Nr + 1))) {
+ * temp = w[i - 1]
+ * if ((i mod Nk) == 0) {
+@@ -1886,7 +1886,7 @@
+ }
+
+ static irqreturn_t
+-dma_done_interrupt(int irq, void *dev_id, struct pt_regs * regs)
++dma_done_interrupt(int irq, void *dev_id)
+ {
+ struct cryptocop_prio_job *done_job;
+ reg_dma_rw_ack_intr ack_intr = {
+@@ -2226,6 +2226,7 @@
+ &pj->iop->ctx_out, (char*)virt_to_phys(&pj->iop->ctx_out)));
+
+ /* Start input DMA. */
++ flush_dma_context(&pj->iop->ctx_in);
+ DMA_START_CONTEXT(regi_dma9, virt_to_phys(&pj->iop->ctx_in));
+
+ /* Start output DMA. */
+@@ -3459,7 +3460,7 @@
+ int err;
+ int i;
+ static int initialized = 0;
+-
++
+ if (initialized)
+ return 0;
+
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/drivers/gpio.c linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/gpio.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/drivers/gpio.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/gpio.c 2007-01-09 10:29:20.000000000 +0100
+@@ -1,68 +1,15 @@
+-/* $Id: gpio.c,v 1.16 2005/06/19 17:06:49 starvik Exp $
+- *
++/*
+ * ETRAX CRISv32 general port I/O device
+ *
+- * Copyright (c) 1999, 2000, 2001, 2002, 2003 Axis Communications AB
++ * Copyright (c) 1999-2006 Axis Communications AB
+ *
+ * Authors: Bjorn Wesen (initial version)
+ * Ola Knutsson (LED handling)
+ * Johan Adolfsson (read/set directions, write, port G,
+ * port to ETRAX FS.
+ *
+- * $Log: gpio.c,v $
+- * Revision 1.16 2005/06/19 17:06:49 starvik
+- * Merge of Linux 2.6.12.
+- *
+- * Revision 1.15 2005/05/25 08:22:20 starvik
+- * Changed GPIO port order to fit packages/devices/axis-2.4.
+- *
+- * Revision 1.14 2005/04/24 18:35:08 starvik
+- * Updated with final register headers.
+- *
+- * Revision 1.13 2005/03/15 15:43:00 starvik
+- * dev_id needs to be supplied for shared IRQs.
+- *
+- * Revision 1.12 2005/03/10 17:12:00 starvik
+- * Protect alarm list with spinlock.
+- *
+- * Revision 1.11 2005/01/05 06:08:59 starvik
+- * No need to do local_irq_disable after local_irq_save.
+- *
+- * Revision 1.10 2004/11/19 08:38:31 starvik
+- * Removed old crap.
+- *
+- * Revision 1.9 2004/05/14 07:58:02 starvik
+- * Merge of changes from 2.4
+- *
+- * Revision 1.8 2003/09/11 07:29:50 starvik
+- * Merge of Linux 2.6.0-test5
+- *
+- * Revision 1.7 2003/07/10 13:25:46 starvik
+- * Compiles for 2.5.74
+- * Lindented ethernet.c
+- *
+- * Revision 1.6 2003/07/04 08:27:46 starvik
+- * Merge of Linux 2.5.74
+- *
+- * Revision 1.5 2003/06/10 08:26:37 johana
+- * Etrax -> ETRAX CRISv32
+- *
+- * Revision 1.4 2003/06/05 14:22:48 johana
+- * Initialise some_alarms.
+- *
+- * Revision 1.3 2003/06/05 10:15:46 johana
+- * New INTR_VECT macros.
+- * Enable interrupts in global config.
+- *
+- * Revision 1.2 2003/06/03 15:52:50 johana
+- * Initial CRIS v32 version.
+- *
+- * Revision 1.1 2003/06/03 08:53:15 johana
+- * Copy of os/lx25/arch/cris/arch-v10/drivers/gpio.c version 1.7.
+- *
+ */
+
+-
+ #include <linux/module.h>
+ #include <linux/sched.h>
+ #include <linux/slab.h>
+@@ -85,6 +32,13 @@
+ #include <asm/system.h>
+ #include <asm/irq.h>
+
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++#include "i2c.h"
++
++#define VIRT_I2C_ADDR 0x40
++#endif
++
++
+ /* The following gio ports on ETRAX FS is available:
+ * pa 8 bits, supports interrupts off, hi, low, set, posedge, negedge anyedge
+ * pb 18 bits
+@@ -111,6 +65,10 @@
+ static wait_queue_head_t *gpio_wq;
+ #endif
+
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++static int virtual_gpio_ioctl(struct file *file, unsigned int cmd,
++ unsigned long arg);
++#endif
+ static int gpio_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg);
+ static ssize_t gpio_write(struct file * file, const char * buf, size_t count,
+@@ -148,55 +106,75 @@
+ #define GIO_REG_RD_ADDR(reg) (volatile unsigned long*) (regi_gio + REG_RD_ADDR_gio_##reg )
+ #define GIO_REG_WR_ADDR(reg) (volatile unsigned long*) (regi_gio + REG_RD_ADDR_gio_##reg )
+ unsigned long led_dummy;
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++static unsigned long virtual_dummy;
++static unsigned long virtual_rw_pv_oe = CONFIG_ETRAX_DEF_GIO_PV_OE;
++static unsigned short cached_virtual_gpio_read = 0;
++#endif
+
+-static volatile unsigned long *data_out[NUM_PORTS] = {
+- GIO_REG_WR_ADDR(rw_pa_dout),
+- GIO_REG_WR_ADDR(rw_pb_dout),
++static volatile unsigned long *data_out[NUM_PORTS] = {
++ GIO_REG_WR_ADDR(rw_pa_dout),
++ GIO_REG_WR_ADDR(rw_pb_dout),
+ &led_dummy,
+- GIO_REG_WR_ADDR(rw_pc_dout),
+- GIO_REG_WR_ADDR(rw_pd_dout),
++ GIO_REG_WR_ADDR(rw_pc_dout),
++ GIO_REG_WR_ADDR(rw_pd_dout),
+ GIO_REG_WR_ADDR(rw_pe_dout),
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++ &virtual_dummy,
++#endif
+ };
+
+-static volatile unsigned long *data_in[NUM_PORTS] = {
+- GIO_REG_RD_ADDR(r_pa_din),
+- GIO_REG_RD_ADDR(r_pb_din),
++static volatile unsigned long *data_in[NUM_PORTS] = {
++ GIO_REG_RD_ADDR(r_pa_din),
++ GIO_REG_RD_ADDR(r_pb_din),
+ &led_dummy,
+- GIO_REG_RD_ADDR(r_pc_din),
+- GIO_REG_RD_ADDR(r_pd_din),
++ GIO_REG_RD_ADDR(r_pc_din),
++ GIO_REG_RD_ADDR(r_pd_din),
+ GIO_REG_RD_ADDR(r_pe_din),
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++ &virtual_dummy,
++#endif
+ };
+
+-static unsigned long changeable_dir[NUM_PORTS] = {
++static unsigned long changeable_dir[NUM_PORTS] = {
+ CONFIG_ETRAX_PA_CHANGEABLE_DIR,
+ CONFIG_ETRAX_PB_CHANGEABLE_DIR,
+ 0,
+ CONFIG_ETRAX_PC_CHANGEABLE_DIR,
+- CONFIG_ETRAX_PD_CHANGEABLE_DIR,
++ CONFIG_ETRAX_PD_CHANGEABLE_DIR,
+ CONFIG_ETRAX_PE_CHANGEABLE_DIR,
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++ CONFIG_ETRAX_PV_CHANGEABLE_DIR,
++#endif
+ };
+
+-static unsigned long changeable_bits[NUM_PORTS] = {
++static unsigned long changeable_bits[NUM_PORTS] = {
+ CONFIG_ETRAX_PA_CHANGEABLE_BITS,
+ CONFIG_ETRAX_PB_CHANGEABLE_BITS,
+ 0,
+ CONFIG_ETRAX_PC_CHANGEABLE_BITS,
+ CONFIG_ETRAX_PD_CHANGEABLE_BITS,
+ CONFIG_ETRAX_PE_CHANGEABLE_BITS,
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++ CONFIG_ETRAX_PV_CHANGEABLE_BITS,
++#endif
+ };
+
+-static volatile unsigned long *dir_oe[NUM_PORTS] = {
+- GIO_REG_WR_ADDR(rw_pa_oe),
+- GIO_REG_WR_ADDR(rw_pb_oe),
++static volatile unsigned long *dir_oe[NUM_PORTS] = {
++ GIO_REG_WR_ADDR(rw_pa_oe),
++ GIO_REG_WR_ADDR(rw_pb_oe),
+ &led_dummy,
+- GIO_REG_WR_ADDR(rw_pc_oe),
+- GIO_REG_WR_ADDR(rw_pd_oe),
++ GIO_REG_WR_ADDR(rw_pc_oe),
++ GIO_REG_WR_ADDR(rw_pd_oe),
+ GIO_REG_WR_ADDR(rw_pe_oe),
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++ &virtual_rw_pv_oe,
++#endif
+ };
+
+
+
+-static unsigned int
++static unsigned int
+ gpio_poll(struct file *file,
+ poll_table *wait)
+ {
+@@ -278,7 +256,7 @@
+ return 0;
+
+ if ((data & priv->highalarm) ||
+- (~data & priv->lowalarm)) {
++ (~data & priv->lowalarm)) {
+ mask = POLLIN|POLLRDNORM;
+ }
+
+@@ -288,11 +266,26 @@
+
+ int etrax_gpio_wake_up_check(void)
+ {
+- struct gpio_private *priv = alarmlist;
++ struct gpio_private *priv;
+ unsigned long data = 0;
++ unsigned long flags;
+ int ret = 0;
++ spin_lock_irqsave(&alarm_lock, flags);
++ priv = alarmlist;
+ while (priv) {
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++ if (priv->minor == GPIO_MINOR_V) {
++ data = (unsigned long)cached_virtual_gpio_read;
++ }
++ else {
++ data = *data_in[priv->minor];
++ if (priv->minor == GPIO_MINOR_A) {
++ priv->lowalarm |= (1 << CONFIG_ETRAX_VIRTUAL_GPIO_INTERRUPT_PA_PIN);
++ }
++ }
++#else
+ data = *data_in[priv->minor];
++#endif
+ if ((data & priv->highalarm) ||
+ (~data & priv->lowalarm)) {
+ DP(printk("etrax_gpio_wake_up_check %i\n",priv->minor));
+@@ -301,11 +294,12 @@
+ }
+ priv = priv->next;
+ }
++ spin_unlock_irqrestore(&alarm_lock, flags);
+ return ret;
+ }
+
+-static irqreturn_t
+-gpio_poll_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
++static irqreturn_t
++gpio_poll_timer_interrupt(int irq, void *dev_id)
+ {
+ if (gpio_some_alarms) {
+ return IRQ_RETVAL(etrax_gpio_wake_up_check());
+@@ -314,14 +308,17 @@
+ }
+
+ static irqreturn_t
+-gpio_pa_interrupt(int irq, void *dev_id, struct pt_regs *regs)
++gpio_pa_interrupt(int irq, void *dev_id)
+ {
+ reg_gio_rw_intr_mask intr_mask;
+ reg_gio_r_masked_intr masked_intr;
+ reg_gio_rw_ack_intr ack_intr;
+ unsigned long tmp;
+ unsigned long tmp2;
+-
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++ unsigned char enable_gpiov_ack = 0;
++#endif
++
+ /* Find what PA interrupts are active */
+ masked_intr = REG_RD(gio, regi_gio, r_masked_intr);
+ tmp = REG_TYPE_CONV(unsigned long, reg_gio_r_masked_intr, masked_intr);
+@@ -331,6 +328,17 @@
+ tmp &= (gpio_pa_high_alarms | gpio_pa_low_alarms);
+ spin_unlock(&alarm_lock);
+
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++ /* Something changed on virtual GPIO. Interrupt is acked by
++ * reading the device.
++ */
++ if (tmp & (1 << CONFIG_ETRAX_VIRTUAL_GPIO_INTERRUPT_PA_PIN)) {
++ i2c_read(VIRT_I2C_ADDR, (void *)&cached_virtual_gpio_read,
++ sizeof(cached_virtual_gpio_read));
++ enable_gpiov_ack = 1;
++ }
++#endif
++
+ /* Ack them */
+ ack_intr = REG_TYPE_CONV(reg_gio_rw_ack_intr, unsigned long, tmp);
+ REG_WR(gio, regi_gio, rw_ack_intr, ack_intr);
+@@ -339,13 +347,21 @@
+ intr_mask = REG_RD(gio, regi_gio, rw_intr_mask);
+ tmp2 = REG_TYPE_CONV(unsigned long, reg_gio_rw_intr_mask, intr_mask);
+ tmp2 &= ~tmp;
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++ /* Do not disable interrupt on virtual GPIO. Changes on virtual
++ * pins are only noticed by an interrupt.
++ */
++ if (enable_gpiov_ack) {
++ tmp2 |= (1 << CONFIG_ETRAX_VIRTUAL_GPIO_INTERRUPT_PA_PIN);
++ }
++#endif
+ intr_mask = REG_TYPE_CONV(reg_gio_rw_intr_mask, unsigned long, tmp2);
+ REG_WR(gio, regi_gio, rw_intr_mask, intr_mask);
+
+ if (gpio_some_alarms) {
+ return IRQ_RETVAL(etrax_gpio_wake_up_check());
+ }
+- return IRQ_NONE;
++ return IRQ_NONE;
+ }
+
+
+@@ -358,8 +374,13 @@
+ unsigned long shadow;
+ volatile unsigned long *port;
+ ssize_t retval = count;
+- /* Only bits 0-7 may be used for write operations but allow all
++ /* Only bits 0-7 may be used for write operations but allow all
+ devices except leds... */
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++ if (priv->minor == GPIO_MINOR_V) {
++ return -EFAULT;
++ }
++#endif
+ if (priv->minor == GPIO_MINOR_LEDS) {
+ return -EFAULT;
+ }
+@@ -416,25 +437,24 @@
+
+ static int
+ gpio_open(struct inode *inode, struct file *filp)
+-{
++{
+ struct gpio_private *priv;
+ int p = iminor(inode);
+
+ if (p > GPIO_MINOR_LAST)
+ return -EINVAL;
+
+- priv = (struct gpio_private *)kmalloc(sizeof(struct gpio_private),
++ priv = (struct gpio_private *)kmalloc(sizeof(struct gpio_private),
+ GFP_KERNEL);
+
+ if (!priv)
+ return -ENOMEM;
++ memset(priv, 0, sizeof(*priv));
+
+ priv->minor = p;
+
+- /* initialize the io/alarm struct and link it into our alarmlist */
++ /* initialize the io/alarm struct */
+
+- priv->next = alarmlist;
+- alarmlist = priv;
+ priv->clk_mask = 0;
+ priv->data_mask = 0;
+ priv->highalarm = 0;
+@@ -443,20 +463,30 @@
+
+ filp->private_data = (void *)priv;
+
++ /* link it into our alarmlist */
++ spin_lock_irq(&alarm_lock);
++ priv->next = alarmlist;
++ alarmlist = priv;
++ spin_unlock_irq(&alarm_lock);
++
+ return 0;
+ }
+
+ static int
+ gpio_release(struct inode *inode, struct file *filp)
+ {
+- struct gpio_private *p = alarmlist;
+- struct gpio_private *todel = (struct gpio_private *)filp->private_data;
++ struct gpio_private *p;
++ struct gpio_private *todel;
+ /* local copies while updating them: */
+ unsigned long a_high, a_low;
+ unsigned long some_alarms;
+
+ /* unlink from alarmlist and free the private structure */
+
++ spin_lock_irq(&alarm_lock);
++ p = alarmlist;
++ todel = (struct gpio_private *)filp->private_data;
++
+ if (p == todel) {
+ alarmlist = todel->next;
+ } else {
+@@ -473,6 +503,9 @@
+ a_low = 0;
+ while (p) {
+ if (p->minor == GPIO_MINOR_A) {
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++ p->lowalarm |= (1 << CONFIG_ETRAX_VIRTUAL_GPIO_INTERRUPT_PA_PIN);
++#endif
+ a_high |= p->highalarm;
+ a_low |= p->lowalarm;
+ }
+@@ -483,23 +516,30 @@
+ p = p->next;
+ }
+
+- spin_lock(&alarm_lock);
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++ /* Variables 'some_alarms' and 'a_low' needs to be set here again
++ * to ensure that interrupt for virtual GPIO is handled.
++ */
++ some_alarms = 1;
++ a_low |= (1 << CONFIG_ETRAX_VIRTUAL_GPIO_INTERRUPT_PA_PIN);
++#endif
++
+ gpio_some_alarms = some_alarms;
+ gpio_pa_high_alarms = a_high;
+ gpio_pa_low_alarms = a_low;
+- spin_unlock(&alarm_lock);
++ spin_unlock_irq(&alarm_lock);
+
+ return 0;
+ }
+
+-/* Main device API. ioctl's to read/set/clear bits, as well as to
++/* Main device API. ioctl's to read/set/clear bits, as well as to
+ * set alarms to wait for using a subsequent select().
+ */
+
+ unsigned long inline setget_input(struct gpio_private *priv, unsigned long arg)
+ {
+- /* Set direction 0=unchanged 1=input,
+- * return mask with 1=input
++ /* Set direction 0=unchanged 1=input,
++ * return mask with 1=input
+ */
+ unsigned long flags;
+ unsigned long dir_shadow;
+@@ -512,6 +552,10 @@
+
+ if (priv->minor == GPIO_MINOR_A)
+ dir_shadow ^= 0xFF; /* Only 8 bits */
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++ else if (priv->minor == GPIO_MINOR_V)
++ dir_shadow ^= 0xFFFF; /* Only 16 bits */
++#endif
+ else
+ dir_shadow ^= 0x3FFFF; /* Only 18 bits */
+ return dir_shadow;
+@@ -546,6 +590,11 @@
+ return -EINVAL;
+ }
+
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++ if (priv->minor == GPIO_MINOR_V)
++ return virtual_gpio_ioctl(file, cmd, arg);
++#endif
++
+ switch (_IOC_NR(cmd)) {
+ case IO_READBITS: /* Use IO_READ_INBITS and IO_READ_OUTBITS instead */
+ // read the port
+@@ -553,8 +602,6 @@
+ break;
+ case IO_SETBITS:
+ local_irq_save(flags);
+- if (arg & 0x04)
+- printk("GPIO SET 2\n");
+ // set changeable bits with a 1 in arg
+ shadow = *data_out[priv->minor];
+ shadow |= (arg & changeable_bits[priv->minor]);
+@@ -563,8 +610,6 @@
+ break;
+ case IO_CLRBITS:
+ local_irq_save(flags);
+- if (arg & 0x04)
+- printk("GPIO CLR 2\n");
+ // clear changeable bits with a 1 in arg
+ shadow = *data_out[priv->minor];
+ shadow &= ~(arg & changeable_bits[priv->minor]);
+@@ -574,52 +619,52 @@
+ case IO_HIGHALARM:
+ // set alarm when bits with 1 in arg go high
+ priv->highalarm |= arg;
+- spin_lock(&alarm_lock);
++ spin_lock_irqsave(&alarm_lock, flags);
+ gpio_some_alarms = 1;
+ if (priv->minor == GPIO_MINOR_A) {
+ gpio_pa_high_alarms |= arg;
+ }
+- spin_unlock(&alarm_lock);
++ spin_unlock_irqrestore(&alarm_lock, flags);
+ break;
+ case IO_LOWALARM:
+ // set alarm when bits with 1 in arg go low
+ priv->lowalarm |= arg;
+- spin_lock(&alarm_lock);
++ spin_lock_irqsave(&alarm_lock, flags);
+ gpio_some_alarms = 1;
+ if (priv->minor == GPIO_MINOR_A) {
+ gpio_pa_low_alarms |= arg;
+ }
+- spin_unlock(&alarm_lock);
++ spin_unlock_irqrestore(&alarm_lock, flags);
+ break;
+ case IO_CLRALARM:
+ // clear alarm for bits with 1 in arg
+ priv->highalarm &= ~arg;
+ priv->lowalarm &= ~arg;
+- spin_lock(&alarm_lock);
++ spin_lock_irqsave(&alarm_lock, flags);
+ if (priv->minor == GPIO_MINOR_A) {
+- if (gpio_pa_high_alarms & arg ||
++ if (gpio_pa_high_alarms & arg ||
+ gpio_pa_low_alarms & arg) {
+ /* Must update the gpio_pa_*alarms masks */
+ }
+ }
+- spin_unlock(&alarm_lock);
++ spin_unlock_irqrestore(&alarm_lock, flags);
+ break;
+ case IO_READDIR: /* Use IO_SETGET_INPUT/OUTPUT instead! */
+ /* Read direction 0=input 1=output */
+ return *dir_oe[priv->minor];
+ case IO_SETINPUT: /* Use IO_SETGET_INPUT instead! */
+- /* Set direction 0=unchanged 1=input,
+- * return mask with 1=input
++ /* Set direction 0=unchanged 1=input,
++ * return mask with 1=input
+ */
+ return setget_input(priv, arg);
+ break;
+ case IO_SETOUTPUT: /* Use IO_SETGET_OUTPUT instead! */
+- /* Set direction 0=unchanged 1=output,
+- * return mask with 1=output
++ /* Set direction 0=unchanged 1=output,
++ * return mask with 1=output
+ */
+ return setget_output(priv, arg);
+
+- case IO_CFG_WRITE_MODE:
++ case IO_CFG_WRITE_MODE:
+ {
+ unsigned long dir_shadow;
+ dir_shadow = *dir_oe[priv->minor];
+@@ -641,7 +686,7 @@
+ }
+ break;
+ }
+- case IO_READ_INBITS:
++ case IO_READ_INBITS:
+ /* *arg is result of reading the input pins */
+ val = *data_in[priv->minor];
+ if (copy_to_user((unsigned long*)arg, &val, sizeof(val)))
+@@ -654,7 +699,7 @@
+ if (copy_to_user((unsigned long*)arg, &val, sizeof(val)))
+ return -EFAULT;
+ break;
+- case IO_SETGET_INPUT:
++ case IO_SETGET_INPUT:
+ /* bits set in *arg is set to input,
+ * *arg updated with current input pins.
+ */
+@@ -684,6 +729,132 @@
+ return 0;
+ }
+
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++static int
++virtual_gpio_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
++{
++ unsigned long flags;
++ unsigned short val;
++ unsigned short shadow;
++ struct gpio_private *priv = (struct gpio_private *)file->private_data;
++
++ switch (_IOC_NR(cmd)) {
++ case IO_SETBITS:
++ local_irq_save(flags);
++ // set changeable bits with a 1 in arg
++ i2c_read(VIRT_I2C_ADDR, (void *)&shadow, sizeof(shadow));
++ shadow |= ~*dir_oe[priv->minor];
++ shadow |= (arg & changeable_bits[priv->minor]);
++ i2c_write(VIRT_I2C_ADDR, (void *)&shadow, sizeof(shadow));
++ local_irq_restore(flags);
++ break;
++ case IO_CLRBITS:
++ local_irq_save(flags);
++ // clear changeable bits with a 1 in arg
++ i2c_read(VIRT_I2C_ADDR, (void *)&shadow, sizeof(shadow));
++ shadow |= ~*dir_oe[priv->minor];
++ shadow &= ~(arg & changeable_bits[priv->minor]);
++ i2c_write(VIRT_I2C_ADDR, (void *)&shadow, sizeof(shadow));
++ local_irq_restore(flags);
++ break;
++ case IO_HIGHALARM:
++ // set alarm when bits with 1 in arg go high
++ priv->highalarm |= arg;
++ spin_lock(&alarm_lock);
++ gpio_some_alarms = 1;
++ spin_unlock(&alarm_lock);
++ break;
++ case IO_LOWALARM:
++ // set alarm when bits with 1 in arg go low
++ priv->lowalarm |= arg;
++ spin_lock(&alarm_lock);
++ gpio_some_alarms = 1;
++ spin_unlock(&alarm_lock);
++ break;
++ case IO_CLRALARM:
++ // clear alarm for bits with 1 in arg
++ priv->highalarm &= ~arg;
++ priv->lowalarm &= ~arg;
++ spin_lock(&alarm_lock);
++ spin_unlock(&alarm_lock);
++ break;
++ case IO_CFG_WRITE_MODE:
++ {
++ unsigned long dir_shadow;
++ dir_shadow = *dir_oe[priv->minor];
++
++ priv->clk_mask = arg & 0xFF;
++ priv->data_mask = (arg >> 8) & 0xFF;
++ priv->write_msb = (arg >> 16) & 0x01;
++ /* Check if we're allowed to change the bits and
++ * the direction is correct
++ */
++ if (!((priv->clk_mask & changeable_bits[priv->minor]) &&
++ (priv->data_mask & changeable_bits[priv->minor]) &&
++ (priv->clk_mask & dir_shadow) &&
++ (priv->data_mask & dir_shadow)))
++ {
++ priv->clk_mask = 0;
++ priv->data_mask = 0;
++ return -EPERM;
++ }
++ break;
++ }
++ case IO_READ_INBITS:
++ /* *arg is result of reading the input pins */
++ val = cached_virtual_gpio_read;
++ val &= ~*dir_oe[priv->minor];
++ if (copy_to_user((unsigned long*)arg, &val, sizeof(val)))
++ return -EFAULT;
++ return 0;
++ break;
++ case IO_READ_OUTBITS:
++ /* *arg is result of reading the output shadow */
++ i2c_read(VIRT_I2C_ADDR, (void *)&val, sizeof(val));
++ val &= *dir_oe[priv->minor];
++ if (copy_to_user((unsigned long*)arg, &val, sizeof(val)))
++ return -EFAULT;
++ break;
++ case IO_SETGET_INPUT:
++ {
++ /* bits set in *arg is set to input,
++ * *arg updated with current input pins.
++ */
++ unsigned short input_mask = ~*dir_oe[priv->minor];
++ if (copy_from_user(&val, (unsigned long*)arg, sizeof(val)))
++ return -EFAULT;
++ val = setget_input(priv, val);
++ if (copy_to_user((unsigned long*)arg, &val, sizeof(val)))
++ return -EFAULT;
++ if ((input_mask & val) != input_mask) {
++ /* Input pins changed. All ports desired as input
++ * should be set to logic 1.
++ */
++ unsigned short change = input_mask ^ val;
++ i2c_read(VIRT_I2C_ADDR, (void *)&shadow, sizeof(shadow));
++ shadow &= ~change;
++ shadow |= val;
++ i2c_write(VIRT_I2C_ADDR, (void *)&shadow, sizeof(shadow));
++ }
++ break;
++ }
++ case IO_SETGET_OUTPUT:
++ /* bits set in *arg is set to output,
++ * *arg updated with current output pins.
++ */
++ if (copy_from_user(&val, (unsigned long*)arg, sizeof(val)))
++ return -EFAULT;
++ val = setget_output(priv, val);
++ if (copy_to_user((unsigned long*)arg, &val, sizeof(val)))
++ return -EFAULT;
++ break;
++ default:
++ return -EINVAL;
++ } /* switch */
++ return 0;
++}
++#endif /* CONFIG_ETRAX_VIRTUAL_GPIO */
++
+ static int
+ gpio_leds_ioctl(unsigned int cmd, unsigned long arg)
+ {
+@@ -714,6 +885,66 @@
+ .release = gpio_release,
+ };
+
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++static void
++virtual_gpio_init(void)
++{
++ reg_gio_rw_intr_cfg intr_cfg;
++ reg_gio_rw_intr_mask intr_mask;
++ unsigned short shadow;
++
++ shadow = ~virtual_rw_pv_oe; /* Input ports should be set to logic 1 */
++ shadow |= CONFIG_ETRAX_DEF_GIO_PV_OUT;
++ i2c_write(VIRT_I2C_ADDR, (void *)&shadow, sizeof(shadow));
++
++ /* Set interrupt mask and on what state the interrupt shall trigger.
++ * For virtual gpio the interrupt shall trigger on logic '0'.
++ */
++ intr_cfg = REG_RD(gio, regi_gio, rw_intr_cfg);
++ intr_mask = REG_RD(gio, regi_gio, rw_intr_mask);
++
++ switch (CONFIG_ETRAX_VIRTUAL_GPIO_INTERRUPT_PA_PIN) {
++ case 0:
++ intr_cfg.pa0 = regk_gio_lo;
++ intr_mask.pa0 = regk_gio_yes;
++ break;
++ case 1:
++ intr_cfg.pa1 = regk_gio_lo;
++ intr_mask.pa1 = regk_gio_yes;
++ break;
++ case 2:
++ intr_cfg.pa2 = regk_gio_lo;
++ intr_mask.pa2 = regk_gio_yes;
++ break;
++ case 3:
++ intr_cfg.pa3 = regk_gio_lo;
++ intr_mask.pa3 = regk_gio_yes;
++ break;
++ case 4:
++ intr_cfg.pa4 = regk_gio_lo;
++ intr_mask.pa4 = regk_gio_yes;
++ break;
++ case 5:
++ intr_cfg.pa5 = regk_gio_lo;
++ intr_mask.pa5 = regk_gio_yes;
++ break;
++ case 6:
++ intr_cfg.pa6 = regk_gio_lo;
++ intr_mask.pa6 = regk_gio_yes;
++ break;
++ case 7:
++ intr_cfg.pa7 = regk_gio_lo;
++ intr_mask.pa7 = regk_gio_yes;
++ break;
++ }
++
++ REG_WR(gio, regi_gio, rw_intr_cfg, intr_cfg);
++ REG_WR(gio, regi_gio, rw_intr_mask, intr_mask);
++
++ gpio_pa_low_alarms |= (1 << CONFIG_ETRAX_VIRTUAL_GPIO_INTERRUPT_PA_PIN);
++ gpio_some_alarms = 1;
++}
++#endif
+
+ /* main driver initialization routine, called from mem.c */
+
+@@ -732,17 +963,18 @@
+ }
+
+ /* Clear all leds */
+- LED_NETWORK_SET(0);
++ LED_NETWORK_GRP0_SET(0);
++ LED_NETWORK_GRP1_SET(0);
+ LED_ACTIVE_SET(0);
+ LED_DISK_READ(0);
+ LED_DISK_WRITE(0);
+
+- printk("ETRAX FS GPIO driver v2.5, (c) 2003-2005 Axis Communications AB\n");
++ printk("ETRAX FS GPIO driver v2.5, (c) 2003-2006 Axis Communications AB\n");
+ /* We call etrax_gpio_wake_up_check() from timer interrupt and
+ * from cpu_idle() in kernel/process.c
+ * The check in cpu_idle() reduces latency from ~15 ms to ~6 ms
+ * in some tests.
+- */
++ */
+ if (request_irq(TIMER_INTR_VECT, gpio_poll_timer_interrupt,
+ IRQF_SHARED | IRQF_DISABLED,"gpio poll", &alarmlist)) {
+ printk("err: timer0 irq for gpio\n");
+@@ -757,6 +989,10 @@
+ intr_mask.gen_io = 1;
+ REG_WR(intr_vect, regi_irq, rw_mask, intr_mask);
+
++#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
++ virtual_gpio_init();
++#endif
++
+ return res;
+ }
+
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/drivers/i2c.c linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/i2c.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/drivers/i2c.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/i2c.c 2006-11-06 16:48:06.000000000 +0100
+@@ -8,11 +8,11 @@
+ *!
+ *! Nov 30 1998 Torbjorn Eliasson Initial version.
+ *! Bjorn Wesen Elinux kernel version.
+-*! Jan 14 2000 Johan Adolfsson Fixed PB shadow register stuff -
++*! Jan 14 2000 Johan Adolfsson Fixed PB shadow register stuff -
+ *! don't use PB_I2C if DS1302 uses same bits,
+ *! use PB.
+ *| June 23 2003 Pieter Grimmerink Added 'i2c_sendnack'. i2c_readreg now
+-*| generates nack on last received byte,
++*| generates nack on last received byte,
+ *| instead of ack.
+ *| i2c_getack changed data level while clock
+ *| was high, causing DS75 to see a stop condition
+@@ -22,7 +22,7 @@
+ *! (C) Copyright 1999-2002 Axis Communications AB, LUND, SWEDEN
+ *!
+ *!***************************************************************************/
+-/* $Id: i2c.c,v 1.2 2005/05/09 15:29:49 starvik Exp $ */
++/* $Id: i2c.c,v 1.6 2006/11/06 15:48:06 imres Exp $ */
+ /****************** INCLUDE FILES SECTION ***********************************/
+
+ #include <linux/module.h>
+@@ -60,8 +60,8 @@
+ #define I2C_DATA_HIGH 1
+ #define I2C_DATA_LOW 0
+
+-#define i2c_enable()
+-#define i2c_disable()
++#define i2c_enable()
++#define i2c_disable()
+
+ /* enable or disable output-enable, to select output or input on the i2c bus */
+
+@@ -79,6 +79,8 @@
+
+ #define i2c_delay(usecs) udelay(usecs)
+
++static DEFINE_SPINLOCK(i2c_lock); /* Protect directions etc */
++
+ /****************** VARIABLE SECTION ************************************/
+
+ static struct crisv32_iopin cris_i2c_clk;
+@@ -154,7 +156,7 @@
+ } else {
+ i2c_data(I2C_DATA_LOW);
+ }
+-
++
+ i2c_delay(CLOCK_LOW_TIME/2);
+ i2c_clk(I2C_CLOCK_HIGH);
+ i2c_delay(CLOCK_HIGH_TIME);
+@@ -213,7 +215,7 @@
+ }
+ i2c_clk(I2C_CLOCK_HIGH);
+ i2c_delay(CLOCK_HIGH_TIME);
+-
++
+ /*
+ * we leave the clock low, getbyte is usually followed
+ * by sendack/nack, they assume the clock to be low
+@@ -252,6 +254,7 @@
+ * generate ACK clock pulse
+ */
+ i2c_clk(I2C_CLOCK_HIGH);
++#if 0
+ /*
+ * Use PORT PB instead of I2C
+ * for input. (I2C not working)
+@@ -264,6 +267,8 @@
+ i2c_data(1);
+ i2c_disable();
+ i2c_dir_in();
++#endif
++
+ /*
+ * now wait for ack
+ */
+@@ -285,13 +290,15 @@
+ * before we enable our output. If we keep data high
+ * and enable output, we would generate a stop condition.
+ */
++#if 0
+ i2c_data(I2C_DATA_LOW);
+-
++
+ /*
+ * end clock pulse
+ */
+ i2c_enable();
+ i2c_dir_out();
++#endif
+ i2c_clk(I2C_CLOCK_LOW);
+ i2c_delay(CLOCK_HIGH_TIME/4);
+ /*
+@@ -338,7 +345,7 @@
+ */
+ i2c_data(I2C_DATA_HIGH);
+ i2c_delay(CLOCK_LOW_TIME);
+-
++
+ i2c_dir_in();
+ }
+
+@@ -369,24 +376,160 @@
+ i2c_delay(CLOCK_HIGH_TIME);
+ i2c_clk(I2C_CLOCK_LOW);
+ i2c_delay(CLOCK_LOW_TIME);
+-
++
+ i2c_dir_in();
+ }
+
+ /*#---------------------------------------------------------------------------
+ *#
++*# FUNCTION NAME: i2c_write
++*#
++*# DESCRIPTION : Writes a value to an I2C device
++*#
++*#--------------------------------------------------------------------------*/
++int
++i2c_write(unsigned char theSlave, void *data, size_t nbytes)
++{
++ int error, cntr = 3;
++ unsigned char bytes_wrote = 0;
++ unsigned char value;
++ unsigned long flags;
++
++ spin_lock(&i2c_lock);
++
++ do {
++ error = 0;
++ /*
++ * we don't like to be interrupted
++ */
++ local_irq_save(flags);
++
++ i2c_start();
++ /*
++ * send slave address
++ */
++ i2c_outbyte((theSlave & 0xfe));
++ /*
++ * wait for ack
++ */
++ if(!i2c_getack())
++ error = 1;
++ /*
++ * send data
++ */
++ for (bytes_wrote = 0; bytes_wrote < nbytes; bytes_wrote++) {
++ memcpy(&value, data + bytes_wrote, sizeof value);
++ i2c_outbyte(value);
++ /*
++ * now it's time to wait for ack
++ */
++ if (!i2c_getack())
++ error |= 4;
++ }
++ /*
++ * end byte stream
++ */
++ i2c_stop();
++ /*
++ * enable interrupt again
++ */
++ local_irq_restore(flags);
++
++ } while(error && cntr--);
++
++ i2c_delay(CLOCK_LOW_TIME);
++
++ spin_unlock(&i2c_lock);
++
++ return -error;
++}
++
++/*#---------------------------------------------------------------------------
++*#
++*# FUNCTION NAME: i2c_read
++*#
++*# DESCRIPTION : Reads a value from an I2C device
++*#
++*#--------------------------------------------------------------------------*/
++int
++i2c_read(unsigned char theSlave, void *data, size_t nbytes)
++{
++ unsigned char b = 0;
++ unsigned char bytes_read = 0;
++ int error, cntr = 3;
++ unsigned long flags;
++
++ spin_lock(&i2c_lock);
++
++ do {
++ error = 0;
++ memset(data, 0, nbytes);
++ /*
++ * we don't like to be interrupted
++ */
++ local_irq_save(flags);
++ /*
++ * generate start condition
++ */
++ i2c_start();
++
++ /*
++ * send slave address
++ */
++ i2c_outbyte((theSlave | 0x01));
++ /*
++ * wait for ack
++ */
++ if(!i2c_getack())
++ error = 1;
++ /*
++ * fetch data
++ */
++ for (bytes_read = 0; bytes_read < nbytes; bytes_read++) {
++ b = i2c_inbyte();
++ memcpy(data + bytes_read, &b, sizeof b);
++
++ if (bytes_read < (nbytes - 1)) {
++ i2c_sendack();
++ }
++ }
++ /*
++ * last received byte needs to be nacked
++ * instead of acked
++ */
++ i2c_sendnack();
++ /*
++ * end sequence
++ */
++ i2c_stop();
++ /*
++ * enable interrupt again
++ */
++ local_irq_restore(flags);
++
++ } while(error && cntr--);
++
++ spin_unlock(&i2c_lock);
++
++ return -error;
++}
++
++/*#---------------------------------------------------------------------------
++*#
+ *# FUNCTION NAME: i2c_writereg
+ *#
+ *# DESCRIPTION : Writes a value to an I2C device
+ *#
+ *#--------------------------------------------------------------------------*/
+ int
+-i2c_writereg(unsigned char theSlave, unsigned char theReg,
++i2c_writereg(unsigned char theSlave, unsigned char theReg,
+ unsigned char theValue)
+ {
+ int error, cntr = 3;
+ unsigned long flags;
+
++ spin_lock(&i2c_lock);
++
+ do {
+ error = 0;
+ /*
+@@ -431,10 +574,12 @@
+ * enable interrupt again
+ */
+ local_irq_restore(flags);
+-
++
+ } while(error && cntr--);
+
+ i2c_delay(CLOCK_LOW_TIME);
++
++ spin_unlock(&i2c_lock);
+
+ return -error;
+ }
+@@ -453,6 +598,8 @@
+ int error, cntr = 3;
+ unsigned long flags;
+
++ spin_lock(&i2c_lock);
++
+ do {
+ error = 0;
+ /*
+@@ -463,7 +610,7 @@
+ * generate start condition
+ */
+ i2c_start();
+-
++
+ /*
+ * send slave address
+ */
+@@ -482,7 +629,7 @@
+ * now it's time to wait for ack
+ */
+ if(!i2c_getack())
+- error = 1;
++ error |= 2;
+ /*
+ * repeat start condition
+ */
+@@ -496,7 +643,7 @@
+ * wait for ack
+ */
+ if(!i2c_getack())
+- error = 1;
++ error |= 4;
+ /*
+ * fetch register
+ */
+@@ -514,9 +661,11 @@
+ * enable interrupt again
+ */
+ local_irq_restore(flags);
+-
++
+ } while(error && cntr--);
+
++ spin_unlock(&i2c_lock);
++
+ return b;
+ }
+
+@@ -546,7 +695,7 @@
+ switch (_IOC_NR(cmd)) {
+ case I2C_WRITEREG:
+ /* write to an i2c slave */
+- D(printk("i2cw %d %d %d\n",
++ D(printk("i2cw %d %d %d\n",
+ I2C_ARGSLAVE(arg),
+ I2C_ARGREG(arg),
+ I2C_ARGVALUE(arg)));
+@@ -558,18 +707,18 @@
+ {
+ unsigned char val;
+ /* read from an i2c slave */
+- D(printk("i2cr %d %d ",
++ D(printk("i2cr %d %d ",
+ I2C_ARGSLAVE(arg),
+ I2C_ARGREG(arg)));
+ val = i2c_readreg(I2C_ARGSLAVE(arg), I2C_ARGREG(arg));
+ D(printk("= %d\n", val));
+ return val;
+- }
++ }
+ default:
+ return -EINVAL;
+
+ }
+-
++
+ return 0;
+ }
+
+@@ -583,28 +732,53 @@
+ int __init
+ i2c_init(void)
+ {
+- int res;
++ static int res = 0;
++ static int first = 1;
++
++ if (!first) {
++ return res;
++ }
++ first = 0;
+
+- /* Setup and enable the Port B I2C interface */
++ /* Setup and enable the DATA and CLK pins */
+
+- crisv32_io_get_name(&cris_i2c_data, CONFIG_ETRAX_I2C_DATA_PORT);
+- crisv32_io_get_name(&cris_i2c_clk, CONFIG_ETRAX_I2C_CLK_PORT);
++ res = crisv32_io_get_name(&cris_i2c_data, CONFIG_ETRAX_I2C_DATA_PORT);
++ if (res < 0) {
++ return res;
++ }
++
++ res = crisv32_io_get_name(&cris_i2c_clk, CONFIG_ETRAX_I2C_CLK_PORT);
++ crisv32_io_set_dir(&cris_i2c_clk, crisv32_io_dir_out);
++
++ return res;
++}
+
+- /* register char device */
+
++int __init
++i2c_register(void)
++{
++
++ int res;
++
++ res = i2c_init();
++ if (res < 0) {
++ return res;
++ }
++
++ /* register char device */
+ res = register_chrdev(I2C_MAJOR, i2c_name, &i2c_fops);
+ if(res < 0) {
+ printk(KERN_ERR "i2c: couldn't get a major number.\n");
+ return res;
+ }
+
+- printk(KERN_INFO "I2C driver v2.2, (c) 1999-2001 Axis Communications AB\n");
+-
++ printk(KERN_INFO "I2C driver v2.2, (c) 1999-2004 Axis Communications AB\n");
++
+ return 0;
+ }
+
+ /* this makes sure that i2c_init is called during boot */
+
+-module_init(i2c_init);
++module_init(i2c_register);
+
+ /****************** END OF FILE i2c.c ********************************/
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/drivers/i2c.h linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/i2c.h
+--- linux-2.6.19.2.old/arch/cris/arch-v32/drivers/i2c.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/i2c.h 2006-11-06 16:48:06.000000000 +0100
+@@ -3,6 +3,8 @@
+
+ /* High level I2C actions */
+ int __init i2c_init(void);
++int i2c_write(unsigned char theSlave, void *data, size_t nbytes);
++int i2c_read(unsigned char theSlave, void *data, size_t nbytes);
+ int i2c_writereg(unsigned char theSlave, unsigned char theReg, unsigned char theValue);
+ unsigned char i2c_readreg(unsigned char theSlave, unsigned char theReg);
+
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/drivers/iop_fw_load.c linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/iop_fw_load.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/drivers/iop_fw_load.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/iop_fw_load.c 2005-04-07 11:27:46.000000000 +0200
+@@ -67,12 +67,12 @@
+ return -ENODEV;
+
+ /* get firmware */
+- retval = request_firmware(&fw_entry,
+- fw_name,
++ retval = request_firmware(&fw_entry,
++ fw_name,
+ &iop_spu_device[spu_inst]);
+ if (retval != 0)
+ {
+- printk(KERN_ERR
++ printk(KERN_ERR
+ "iop_load_spu: Failed to load firmware \"%s\"\n",
+ fw_name);
+ return retval;
+@@ -123,7 +123,7 @@
+ return retval;
+ }
+
+-int iop_fw_load_mpu(unsigned char *fw_name)
++int iop_fw_load_mpu(unsigned char *fw_name)
+ {
+ const unsigned int start_addr = 0;
+ reg_iop_mpu_rw_ctrl mpu_ctrl;
+@@ -135,13 +135,13 @@
+ retval = request_firmware(&fw_entry, fw_name, &iop_mpu_device);
+ if (retval != 0)
+ {
+- printk(KERN_ERR
++ printk(KERN_ERR
+ "iop_load_spu: Failed to load firmware \"%s\"\n",
+ fw_name);
+ return retval;
+ }
+ data = (u32 *) fw_entry->data;
+-
++
+ /* disable MPU */
+ mpu_ctrl.en = regk_iop_mpu_no;
+ REG_WR(iop_mpu, regi_iop_mpu, rw_ctrl, mpu_ctrl);
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/drivers/nandflash.c linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/nandflash.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/drivers/nandflash.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/nandflash.c 2006-10-16 14:56:46.000000000 +0200
+@@ -5,8 +5,8 @@
+ *
+ * Derived from drivers/mtd/nand/spia.c
+ * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
+- *
+- * $Id: nandflash.c,v 1.3 2005/06/01 10:57:12 starvik Exp $
++ *
++ * $Id: nandflash.c,v 1.8 2006/10/16 12:56:46 ricardw Exp $
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+@@ -32,37 +32,53 @@
+ #define ALE_BIT 6
+ #define BY_BIT 7
+
++/* Bitmask for control pins */
++#define PIN_BITMASK ((1 << CE_BIT) | (1 << CLE_BIT) | (1 << ALE_BIT))
++
++/* Bitmask for mtd nand control bits */
++#define CTRL_BITMASK (NAND_NCE | NAND_CLE | NAND_ALE)
++
++
+ static struct mtd_info *crisv32_mtd = NULL;
+-/*
++/*
+ * hardware specific access to control-lines
+ */
+-static void crisv32_hwcontrol(struct mtd_info *mtd, int cmd)
++static void crisv32_hwcontrol(struct mtd_info *mtd, int cmd,
++ unsigned int ctrl)
+ {
+ unsigned long flags;
+- reg_gio_rw_pa_dout dout = REG_RD(gio, regi_gio, rw_pa_dout);
++ reg_gio_rw_pa_dout dout;
++ struct nand_chip *this = mtd->priv;
+
+ local_irq_save(flags);
+- switch(cmd){
+- case NAND_CTL_SETCLE:
+- dout.data |= (1<<CLE_BIT);
+- break;
+- case NAND_CTL_CLRCLE:
+- dout.data &= ~(1<<CLE_BIT);
+- break;
+- case NAND_CTL_SETALE:
+- dout.data |= (1<<ALE_BIT);
+- break;
+- case NAND_CTL_CLRALE:
+- dout.data &= ~(1<<ALE_BIT);
+- break;
+- case NAND_CTL_SETNCE:
+- dout.data |= (1<<CE_BIT);
+- break;
+- case NAND_CTL_CLRNCE:
+- dout.data &= ~(1<<CE_BIT);
+- break;
++
++ /* control bits change */
++ if (ctrl & NAND_CTRL_CHANGE) {
++ dout = REG_RD(gio, regi_gio, rw_pa_dout);
++ dout.data &= ~PIN_BITMASK;
++
++#if (CE_BIT == 4 && NAND_NCE == 1 && \
++ CLE_BIT == 5 && NAND_CLE == 2 && \
++ ALE_BIT == 6 && NAND_ALE == 4)
++ /* Pins in same order as control bits, but shifted.
++ * Optimize for this case; works for 2.6.18 */
++ dout.data |= ((ctrl & CTRL_BITMASK) ^ NAND_NCE) << CE_BIT;
++#else
++ /* the slow way */
++ if (!(ctrl & NAND_NCE))
++ dout.data |= (1 << CE_BIT);
++ if (ctrl & NAND_CLE)
++ dout.data |= (1 << CLE_BIT);
++ if (ctrl & NAND_ALE)
++ dout.data |= (1 << ALE_BIT);
++#endif
++ REG_WR(gio, regi_gio, rw_pa_dout, dout);
+ }
+- REG_WR(gio, regi_gio, rw_pa_dout, dout);
++
++ /* command to chip */
++ if (cmd != NAND_CMD_NONE)
++ writeb(cmd, this->IO_ADDR_W);
++
+ local_irq_restore(flags);
+ }
+
+@@ -129,26 +145,26 @@
+ /* Set address of NAND IO lines */
+ this->IO_ADDR_R = read_cs;
+ this->IO_ADDR_W = write_cs;
+- this->hwcontrol = crisv32_hwcontrol;
++ this->cmd_ctrl = crisv32_hwcontrol;
+ this->dev_ready = crisv32_device_ready;
+ /* 20 us command delay time */
+- this->chip_delay = 20;
+- this->eccmode = NAND_ECC_SOFT;
++ this->chip_delay = 20;
++ this->ecc.mode = NAND_ECC_SOFT;
+
+ /* Enable the following for a flash based bad block table */
+- this->options = NAND_USE_FLASH_BBT;
++ /* this->options = NAND_USE_FLASH_BBT; */
+
+ /* Scan to find existance of the device */
+ if (nand_scan (crisv32_mtd, 1)) {
+ err = -ENXIO;
+ goto out_ior;
+ }
+-
++
+ return crisv32_mtd;
+-
++
+ out_ior:
+ iounmap((void *)read_cs);
+- iounmap((void *)write_cs);
++ iounmap((void *)write_cs);
+ out_mtd:
+ kfree (crisv32_mtd);
+ return NULL;
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/drivers/pcf8563.c linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/pcf8563.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/drivers/pcf8563.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/pcf8563.c 2006-10-27 17:22:13.000000000 +0200
+@@ -10,7 +10,7 @@
+ * 400 kbits/s. The built-in word address register is incremented
+ * automatically after each written or read byte.
+ *
+- * Copyright (c) 2002-2003, Axis Communications AB
++ * Copyright (c) 2002-2006, Axis Communications AB
+ * All rights reserved.
+ *
+ * Author: Tobias Anderberg <tobiasa@axis.com>.
+@@ -37,24 +37,27 @@
+ #define PCF8563_MAJOR 121 /* Local major number. */
+ #define DEVICE_NAME "rtc" /* Name which is registered in /proc/devices. */
+ #define PCF8563_NAME "PCF8563"
+-#define DRIVER_VERSION "$Revision: 1.1 $"
++#define DRIVER_VERSION "$Revision: 1.9 $"
+
+ /* Two simple wrapper macros, saves a few keystrokes. */
+ #define rtc_read(x) i2c_readreg(RTC_I2C_READ, x)
+ #define rtc_write(x,y) i2c_writereg(RTC_I2C_WRITE, x, y)
+
++static DEFINE_SPINLOCK(rtc_lock); /* Protect state etc */
++
+ static const unsigned char days_in_month[] =
+ { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
+
+ int pcf8563_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
+-int pcf8563_open(struct inode *, struct file *);
+-int pcf8563_release(struct inode *, struct file *);
++
++/* Cache VL bit value read at driver init since writing the RTC_SECOND
++ * register clears the VL status.
++ */
++static int voltage_low = 0;
+
+ static struct file_operations pcf8563_fops = {
+ owner: THIS_MODULE,
+ ioctl: pcf8563_ioctl,
+- open: pcf8563_open,
+- release: pcf8563_release,
+ };
+
+ unsigned char
+@@ -62,7 +65,7 @@
+ {
+ unsigned char res = rtc_read(reg);
+
+- /* The PCF8563 does not return 0 for unimplemented bits */
++ /* The PCF8563 does not return 0 for unimplemented bits. */
+ switch (reg) {
+ case RTC_SECONDS:
+ case RTC_MINUTES:
+@@ -95,11 +98,6 @@
+ void
+ pcf8563_writereg(int reg, unsigned char val)
+ {
+-#ifdef CONFIG_ETRAX_RTC_READONLY
+- if (reg == RTC_CONTROL1 || (reg >= RTC_SECONDS && reg <= RTC_YEAR))
+- return;
+-#endif
+-
+ rtc_write(reg, val);
+ }
+
+@@ -114,11 +112,13 @@
+ tm->tm_mon = rtc_read(RTC_MONTH);
+ tm->tm_year = rtc_read(RTC_YEAR);
+
+- if (tm->tm_sec & 0x80)
++ if (tm->tm_sec & 0x80) {
+ printk(KERN_WARNING "%s: RTC Voltage Low - reliable date/time "
+ "information is no longer guaranteed!\n", PCF8563_NAME);
++ }
+
+- tm->tm_year = BCD_TO_BIN(tm->tm_year) + ((tm->tm_mon & 0x80) ? 100 : 0);
++ tm->tm_year = BCD_TO_BIN(tm->tm_year) +
++ ((tm->tm_mon & 0x80) ? 100 : 0);
+ tm->tm_sec &= 0x7F;
+ tm->tm_min &= 0x7F;
+ tm->tm_hour &= 0x3F;
+@@ -137,8 +137,20 @@
+ int __init
+ pcf8563_init(void)
+ {
++ static int res = 0;
++ static int first = 1;
++
++ if (!first) {
++ return res;
++ }
++ first = 0;
++
+ /* Initiate the i2c protocol. */
+- i2c_init();
++ res = i2c_init();
++ if (res < 0) {
++ printk(KERN_CRIT "pcf8563_init: Failed to init i2c.\n");
++ return res;
++ }
+
+ /*
+ * First of all we need to reset the chip. This is done by
+@@ -170,31 +182,28 @@
+ if (rtc_write(RTC_WEEKDAY_ALARM, 0x80) < 0)
+ goto err;
+
+- if (register_chrdev(PCF8563_MAJOR, DEVICE_NAME, &pcf8563_fops) < 0) {
+- printk(KERN_INFO "%s: Unable to get major numer %d for RTC device.\n",
+- PCF8563_NAME, PCF8563_MAJOR);
+- return -1;
++ /* Check for low voltage, and warn about it. */
++ if (rtc_read(RTC_SECONDS) & 0x80) {
++ voltage_low = 1;
++ printk(KERN_WARNING "%s: RTC Voltage Low - reliable "
++ "date/time information is no longer guaranteed!\n",
++ PCF8563_NAME);
+ }
+
+- printk(KERN_INFO "%s Real-Time Clock Driver, %s\n", PCF8563_NAME, DRIVER_VERSION);
+-
+- /* Check for low voltage, and warn about it.. */
+- if (rtc_read(RTC_SECONDS) & 0x80)
+- printk(KERN_WARNING "%s: RTC Voltage Low - reliable date/time "
+- "information is no longer guaranteed!\n", PCF8563_NAME);
+-
+- return 0;
++ return res;
+
+ err:
+ printk(KERN_INFO "%s: Error initializing chip.\n", PCF8563_NAME);
+- return -1;
++ res = -1;
++ return res;
+ }
+
+ void __exit
+ pcf8563_exit(void)
+ {
+ if (unregister_chrdev(PCF8563_MAJOR, DEVICE_NAME) < 0) {
+- printk(KERN_INFO "%s: Unable to unregister device.\n", PCF8563_NAME);
++ printk(KERN_INFO "%s: Unable to unregister device.\n",
++ PCF8563_NAME);
+ }
+ }
+
+@@ -203,7 +212,8 @@
+ * POSIX says so!
+ */
+ int
+-pcf8563_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg)
++pcf8563_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
++ unsigned long arg)
+ {
+ /* Some sanity checks. */
+ if (_IOC_TYPE(cmd) != RTC_MAGIC)
+@@ -217,31 +227,35 @@
+ {
+ struct rtc_time tm;
+
+- memset(&tm, 0, sizeof (struct rtc_time));
++ spin_lock(&rtc_lock);
++ memset(&tm, 0, sizeof tm);
+ get_rtc_time(&tm);
+
+- if (copy_to_user((struct rtc_time *) arg, &tm, sizeof tm)) {
++ if (copy_to_user((struct rtc_time *) arg, &tm,
++ sizeof tm)) {
++ spin_unlock(&rtc_lock);
+ return -EFAULT;
+ }
+
++ spin_unlock(&rtc_lock);
++
+ return 0;
+ }
+-
+ case RTC_SET_TIME:
+ {
+-#ifdef CONFIG_ETRAX_RTC_READONLY
+- return -EPERM;
+-#else
+ int leap;
+ int year;
+ int century;
+ struct rtc_time tm;
+
++ memset(&tm, 0, sizeof tm);
+ if (!capable(CAP_SYS_TIME))
+ return -EPERM;
+
+- if (copy_from_user(&tm, (struct rtc_time *) arg, sizeof tm))
++ if (copy_from_user(&tm, (struct rtc_time *) arg,
++ sizeof tm)) {
+ return -EFAULT;
++ }
+
+ /* Convert from struct tm to struct rtc_time. */
+ tm.tm_year += 1900;
+@@ -253,7 +267,8 @@
+ * that years divisible by 400 _are_ leap years.
+ */
+ year = tm.tm_year;
+- leap = (tm.tm_mon == 2) && ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0);
++ leap = (tm.tm_mon == 2) &&
++ ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0);
+
+ /* Perform some sanity checks. */
+ if ((tm.tm_year < 1970) ||
+@@ -263,19 +278,23 @@
+ (tm.tm_wday >= 7) ||
+ (tm.tm_hour >= 24) ||
+ (tm.tm_min >= 60) ||
+- (tm.tm_sec >= 60))
++ (tm.tm_sec >= 60)) {
+ return -EINVAL;
++ }
+
+ century = (tm.tm_year >= 2000) ? 0x80 : 0;
+ tm.tm_year = tm.tm_year % 100;
+
+ BIN_TO_BCD(tm.tm_year);
++ BIN_TO_BCD(tm.tm_mon);
+ BIN_TO_BCD(tm.tm_mday);
+ BIN_TO_BCD(tm.tm_hour);
+ BIN_TO_BCD(tm.tm_min);
+ BIN_TO_BCD(tm.tm_sec);
+ tm.tm_mon |= century;
+
++ spin_lock(&rtc_lock);
++
+ rtc_write(RTC_YEAR, tm.tm_year);
+ rtc_write(RTC_MONTH, tm.tm_mon);
+ rtc_write(RTC_WEEKDAY, tm.tm_wday); /* Not coded in BCD. */
+@@ -284,36 +303,40 @@
+ rtc_write(RTC_MINUTES, tm.tm_min);
+ rtc_write(RTC_SECONDS, tm.tm_sec);
+
++ spin_unlock(&rtc_lock);
++
+ return 0;
+-#endif /* !CONFIG_ETRAX_RTC_READONLY */
+ }
+-
+ case RTC_VLOW_RD:
+- {
+- int vl_bit = 0;
+-
+- if (rtc_read(RTC_SECONDS) & 0x80) {
+- vl_bit = 1;
+- printk(KERN_WARNING "%s: RTC Voltage Low - reliable "
+- "date/time information is no longer guaranteed!\n",
+- PCF8563_NAME);
++ if (voltage_low) {
++ printk(KERN_WARNING "%s: RTC Voltage Low - "
++ "reliable date/time information is no "
++ "longer guaranteed!\n", PCF8563_NAME);
+ }
+- if (copy_to_user((int *) arg, &vl_bit, sizeof(int)))
+- return -EFAULT;
+
++ if (copy_to_user((int *) arg, &voltage_low, sizeof(int))) {
++ return -EFAULT;
++ }
++
+ return 0;
+- }
+
+ case RTC_VLOW_SET:
+ {
+- /* Clear the VL bit in the seconds register */
++ /* Clear the VL bit in the seconds register in case
++ * the time has not been set already (which would
++ * have cleared it). This does not really matter
++ * because of the cached voltage_low value but do it
++ * anyway for consistency. */
++
+ int ret = rtc_read(RTC_SECONDS);
+
+ rtc_write(RTC_SECONDS, (ret & 0x7F));
+
++ /* Clear the cached value. */
++ voltage_low = 0;
++
+ return 0;
+ }
+-
+ default:
+ return -ENOTTY;
+ }
+@@ -321,17 +344,32 @@
+ return 0;
+ }
+
+-int
+-pcf8563_open(struct inode *inode, struct file *filp)
++static int __init
++pcf8563_register(void)
+ {
+- return 0;
+-}
++ if (pcf8563_init() < 0) {
++ printk(KERN_INFO "%s: Unable to initialize Real-Time Clock "
++ "Driver, %s\n", PCF8563_NAME, DRIVER_VERSION);
++ return -1;
++ }
++
++ if (register_chrdev(PCF8563_MAJOR, DEVICE_NAME, &pcf8563_fops) < 0) {
++ printk(KERN_INFO "%s: Unable to get major numer %d for RTC "
++ "device.\n", PCF8563_NAME, PCF8563_MAJOR);
++ return -1;
++ }
++
++ printk(KERN_INFO "%s Real-Time Clock Driver, %s\n", PCF8563_NAME,
++ DRIVER_VERSION);
++
++ /* Check for low voltage, and warn about it. */
++ if (voltage_low) {
++ printk(KERN_WARNING "%s: RTC Voltage Low - reliable date/time "
++ "information is no longer guaranteed!\n", PCF8563_NAME);
++ }
+
+-int
+-pcf8563_release(struct inode *inode, struct file *filp)
+-{
+ return 0;
+ }
+
+-module_init(pcf8563_init);
++module_init(pcf8563_register);
+ module_exit(pcf8563_exit);
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/drivers/pci/bios.c linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/pci/bios.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/drivers/pci/bios.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/pci/bios.c 2006-10-13 14:43:15.000000000 +0200
+@@ -60,7 +60,7 @@
+ u16 cmd, old_cmd;
+ int idx;
+ struct resource *r;
+-
++
+ pci_read_config_word(dev, PCI_COMMAND, &cmd);
+ old_cmd = cmd;
+ for(idx=0; idx<6; idx++) {
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/drivers/pci/dma.c linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/pci/dma.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/drivers/pci/dma.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/pci/dma.c 2005-10-31 09:48:04.000000000 +0100
+@@ -62,7 +62,7 @@
+ {
+ struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL;
+ int order = get_order(size);
+-
++
+ if (mem && vaddr >= mem->virt_base && vaddr < (mem->virt_base + (mem->size << PAGE_SHIFT))) {
+ int page = (vaddr - mem->virt_base) >> PAGE_SHIFT;
+
+@@ -120,7 +120,7 @@
+ void dma_release_declared_memory(struct device *dev)
+ {
+ struct dma_coherent_mem *mem = dev->dma_mem;
+-
++
+ if(!mem)
+ return;
+ dev->dma_mem = NULL;
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/drivers/sync_serial.c linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/sync_serial.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/drivers/sync_serial.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/drivers/sync_serial.c 2007-01-09 10:29:20.000000000 +0100
+@@ -50,7 +50,7 @@
+ /* readp writep */
+ /* */
+ /* If the application keeps up the pace readp will be right after writep.*/
+-/* If the application can't keep the pace we have to throw away data. */
++/* If the application can't keep the pace we have to throw away data. */
+ /* The idea is that readp should be ready with the data pointed out by */
+ /* Descr[i] when the DMA has filled in Descr[i+1]. */
+ /* Otherwise we will discard */
+@@ -65,6 +65,7 @@
+ #define IN_DESCR_SIZE 256
+ #define NUM_IN_DESCR (IN_BUFFER_SIZE/IN_DESCR_SIZE)
+ #define OUT_BUFFER_SIZE 4096
++#define NUM_OUT_DESCRS 4
+
+ #define DEFAULT_FRAME_RATE 0
+ #define DEFAULT_WORD_RATE 7
+@@ -112,7 +113,7 @@
+
+ dma_descr_data in_descr[NUM_IN_DESCR] __attribute__ ((__aligned__(16)));
+ dma_descr_context in_context __attribute__ ((__aligned__(32)));
+- dma_descr_data out_descr __attribute__ ((__aligned__(16)));
++ dma_descr_data out_descr[NUM_OUT_DESCRS] __attribute__ ((__aligned__(16)));
+ dma_descr_context out_context __attribute__ ((__aligned__(32)));
+ wait_queue_head_t out_wait_q;
+ wait_queue_head_t in_wait_q;
+@@ -130,9 +131,9 @@
+
+ static int sync_serial_ioctl(struct inode*, struct file*,
+ unsigned int cmd, unsigned long arg);
+-static ssize_t sync_serial_write(struct file * file, const char * buf,
++static ssize_t sync_serial_write(struct file * file, const char * buf,
+ size_t count, loff_t *ppos);
+-static ssize_t sync_serial_read(struct file *file, char *buf,
++static ssize_t sync_serial_read(struct file *file, char *buf,
+ size_t count, loff_t *ppos);
+
+ #if (defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL_PORT0) && \
+@@ -146,8 +147,8 @@
+ static void start_dma(struct sync_port *port, const char* data, int count);
+ static void start_dma_in(sync_port* port);
+ #ifdef SYNC_SER_DMA
+-static irqreturn_t tr_interrupt(int irq, void *dev_id, struct pt_regs * regs);
+-static irqreturn_t rx_interrupt(int irq, void *dev_id, struct pt_regs * regs);
++static irqreturn_t tr_interrupt(int irq, void *dev_id);
++static irqreturn_t rx_interrupt(int irq, void *dev_id);
+ #endif
+
+ #if (defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL_PORT0) && \
+@@ -157,7 +158,7 @@
+ #define SYNC_SER_MANUAL
+ #endif
+ #ifdef SYNC_SER_MANUAL
+-static irqreturn_t manual_interrupt(int irq, void *dev_id, struct pt_regs * regs);
++static irqreturn_t manual_interrupt(int irq, void *dev_id);
+ #endif
+
+ /* The ports */
+@@ -201,8 +202,8 @@
+ {
+ ports[0].enabled = 0;
+ ports[1].enabled = 0;
+-
+- if (register_chrdev(SYNC_SERIAL_MAJOR,"sync serial", &sync_serial_fops) <0 )
++
++ if (register_chrdev(SYNC_SERIAL_MAJOR,"sync serial", &sync_serial_fops) <0 )
+ {
+ printk("unable to get major for synchronous serial port\n");
+ return -EBUSY;
+@@ -243,13 +244,13 @@
+
+ DEBUG(printk("Init sync serial port %d\n", portnbr));
+
+- port->port_nbr = portnbr;
++ port->port_nbr = portnbr;
+ port->init_irqs = 1;
+
+ port->outp = port->out_buffer;
+ port->output = 1;
+ port->input = 0;
+-
++
+ port->readp = port->flip;
+ port->writep = port->flip;
+ port->in_buffer_size = IN_BUFFER_SIZE;
+@@ -286,11 +287,16 @@
+ tr_cfg.sample_size = 7;
+ tr_cfg.sh_dir = regk_sser_msbfirst;
+ tr_cfg.use_dma = port->use_dma ? regk_sser_yes : regk_sser_no;
++#if 0
+ tr_cfg.rate_ctrl = regk_sser_bulk;
+ tr_cfg.data_pin_use = regk_sser_dout;
++#else
++ tr_cfg.rate_ctrl = regk_sser_iso;
++ tr_cfg.data_pin_use = regk_sser_dout;
++#endif
+ tr_cfg.bulk_wspace = 1;
+ REG_WR(sser, port->regi_sser, rw_tr_cfg, tr_cfg);
+-
++
+ rec_cfg.sample_size = 7;
+ rec_cfg.sh_dir = regk_sser_msbfirst;
+ rec_cfg.use_dma = port->use_dma ? regk_sser_yes : regk_sser_no;
+@@ -303,17 +309,17 @@
+ int avail;
+ unsigned char *start;
+ unsigned char *end;
+-
++
+ start = (unsigned char*)port->readp; /* cast away volatile */
+ end = (unsigned char*)port->writep; /* cast away volatile */
+ /* 0123456789 0123456789
+ * ----- - -----
+ * ^rp ^wp ^wp ^rp
+ */
+-
++
+ if (end >= start)
+ avail = end - start;
+- else
++ else
+ avail = port->in_buffer_size - (start - end);
+ return avail;
+ }
+@@ -323,17 +329,17 @@
+ int avail;
+ unsigned char *start;
+ unsigned char *end;
+-
++
+ start = (unsigned char*)port->readp; /* cast away volatile */
+ end = (unsigned char*)port->writep; /* cast away volatile */
+ /* 0123456789 0123456789
+ * ----- -----
+ * ^rp ^wp ^wp ^rp
+ */
+-
++
+ if (end >= start)
+ avail = end - start;
+- else
++ else
+ avail = port->flip + port->in_buffer_size - start;
+ return avail;
+ }
+@@ -343,10 +349,10 @@
+ int dev = iminor(inode);
+ sync_port* port;
+ reg_dma_rw_cfg cfg = {.en = regk_dma_yes};
+- reg_dma_rw_intr_mask intr_mask = {.data = regk_dma_yes};
+-
+- DEBUG(printk("Open sync serial port %d\n", dev));
++ reg_dma_rw_intr_mask intr_mask = {.data = regk_dma_yes};
+
++ DEBUG(printk("Open sync serial port %d\n", dev));
++
+ if (dev < 0 || dev >= NUMBER_OF_PORTS || !ports[dev].enabled)
+ {
+ DEBUG(printk("Invalid minor %d\n", dev));
+@@ -354,7 +360,7 @@
+ }
+ port = &ports[dev];
+ /* Allow open this device twice (assuming one reader and one writer) */
+- if (port->busy == 2)
++ if (port->busy == 2)
+ {
+ DEBUG(printk("Device is busy.. \n"));
+ return -EBUSY;
+@@ -422,8 +428,8 @@
+ DMA_VERBOSE_ON_ERROR,
+ 0,
+ dma_sser1)) {
+- free_irq(21, &ports[1]);
+- free_irq(20, &ports[1]);
++ free_irq(DMA6_INTR_VECT, &ports[1]);
++ free_irq(DMA7_INTR_VECT, &ports[1]);
+ printk(KERN_CRIT "Can't allocate sync serial port 3 TX DMA channel");
+ return -EBUSY;
+ } else if (crisv32_request_dma(SYNC_SER1_RX_DMA_NBR,
+@@ -446,7 +452,7 @@
+ /* Enable DMA IRQs */
+ REG_WR(dma, port->regi_dmain, rw_intr_mask, intr_mask);
+ REG_WR(dma, port->regi_dmaout, rw_intr_mask, intr_mask);
+- /* Set up wordsize = 2 for DMAs. */
++ /* Set up wordsize = 1 for DMAs. */
+ DMA_WR_CMD (port->regi_dmain, regk_dma_set_w_size1);
+ DMA_WR_CMD (port->regi_dmaout, regk_dma_set_w_size1);
+
+@@ -497,7 +503,7 @@
+ port = &ports[dev];
+ if (port->busy)
+ port->busy--;
+- if (!port->busy)
++ if (!port->busy)
+ /* XXX */ ;
+ return 0;
+ }
+@@ -508,17 +514,29 @@
+ unsigned int mask = 0;
+ sync_port* port;
+ DEBUGPOLL( static unsigned int prev_mask = 0; );
+-
++
+ port = &ports[dev];
++
++ if (!port->started)
++ {
++ reg_sser_rw_cfg cfg = REG_RD(sser, port->regi_sser, rw_cfg);
++ reg_sser_rw_rec_cfg rec_cfg = REG_RD(sser, port->regi_sser, rw_rec_cfg);
++ cfg.en = regk_sser_yes;
++ rec_cfg.rec_en = port->input;
++ REG_WR(sser, port->regi_sser, rw_cfg, cfg);
++ REG_WR(sser, port->regi_sser, rw_rec_cfg, rec_cfg);
++ port->started = 1;
++ }
++
+ poll_wait(file, &port->out_wait_q, wait);
+ poll_wait(file, &port->in_wait_q, wait);
+ /* Some room to write */
+- if (port->out_count < OUT_BUFFER_SIZE)
++ if (port->output && port->out_count < OUT_BUFFER_SIZE)
+ mask |= POLLOUT | POLLWRNORM;
+ /* At least an inbufchunk of data */
+- if (sync_data_avail(port) >= port->inbufchunk)
++ if (port->input && sync_data_avail(port) >= port->inbufchunk)
+ mask |= POLLIN | POLLRDNORM;
+-
++
+ DEBUGPOLL(if (mask != prev_mask)
+ printk("sync_serial_poll: mask 0x%08X %s %s\n", mask,
+ mask&POLLOUT?"POLLOUT":"", mask&POLLIN?"POLLIN":"");
+@@ -531,14 +549,15 @@
+ unsigned int cmd, unsigned long arg)
+ {
+ int return_val = 0;
++ int dma_w_size = regk_dma_set_w_size1;
+ int dev = iminor(file->f_dentry->d_inode);
+ sync_port* port;
+ reg_sser_rw_tr_cfg tr_cfg;
+ reg_sser_rw_rec_cfg rec_cfg;
+- reg_sser_rw_frm_cfg frm_cfg;
++ reg_sser_rw_frm_cfg frm_cfg;
+ reg_sser_rw_cfg gen_cfg;
+ reg_sser_rw_intr_mask intr_mask;
+-
++
+ if (dev < 0 || dev >= NUMBER_OF_PORTS || !ports[dev].enabled)
+ {
+ DEBUG(printk("Invalid minor %d\n", dev));
+@@ -558,9 +577,32 @@
+ case SSP_SPEED:
+ if (GET_SPEED(arg) == CODEC)
+ {
++ unsigned int freq;
++
+ gen_cfg.base_freq = regk_sser_f32;
+- /* FREQ = 0 => 4 MHz => clk_div = 7*/
+- gen_cfg.clk_div = 6 + (1 << GET_FREQ(arg));
++
++ /* Clock divider will internally be
++ * gen_cfg.clk_div + 1.
++ */
++
++ freq = GET_FREQ(arg);
++ switch (freq)
++ {
++ case FREQ_32kHz:
++ case FREQ_64kHz:
++ case FREQ_128kHz:
++ case FREQ_256kHz:
++ gen_cfg.clk_div = 125 * (1 << (freq - FREQ_256kHz)) - 1;
++ break;
++ case FREQ_512kHz:
++ gen_cfg.clk_div = 62;
++ break;
++ case FREQ_1MHz:
++ case FREQ_2MHz:
++ case FREQ_4MHz:
++ gen_cfg.clk_div = 8 * (1 << freq) - 1;
++ break;
++ }
+ }
+ else
+ {
+@@ -625,87 +667,118 @@
+ case MASTER_OUTPUT:
+ port->output = 1;
+ port->input = 0;
++ frm_cfg.out_on = regk_sser_tr;
++ frm_cfg.frame_pin_dir = regk_sser_out;
+ gen_cfg.clk_dir = regk_sser_out;
+ break;
+ case SLAVE_OUTPUT:
+ port->output = 1;
+ port->input = 0;
++ frm_cfg.frame_pin_dir = regk_sser_in;
+ gen_cfg.clk_dir = regk_sser_in;
+ break;
+ case MASTER_INPUT:
+ port->output = 0;
+ port->input = 1;
++ frm_cfg.frame_pin_dir = regk_sser_out;
++ frm_cfg.out_on = regk_sser_intern_tb;
+ gen_cfg.clk_dir = regk_sser_out;
+ break;
+ case SLAVE_INPUT:
+ port->output = 0;
+ port->input = 1;
++ frm_cfg.frame_pin_dir = regk_sser_in;
+ gen_cfg.clk_dir = regk_sser_in;
+ break;
+ case MASTER_BIDIR:
+ port->output = 1;
+ port->input = 1;
++ frm_cfg.frame_pin_dir = regk_sser_out;
++ frm_cfg.out_on = regk_sser_intern_tb;
+ gen_cfg.clk_dir = regk_sser_out;
+ break;
+ case SLAVE_BIDIR:
+ port->output = 1;
+ port->input = 1;
++ frm_cfg.frame_pin_dir = regk_sser_in;
+ gen_cfg.clk_dir = regk_sser_in;
+ break;
+ default:
+ spin_unlock_irq(&port->lock);
+ return -EINVAL;
+-
++
+ }
+ if (!port->use_dma || (arg == MASTER_OUTPUT || arg == SLAVE_OUTPUT))
+ intr_mask.rdav = regk_sser_yes;
+ break;
+ case SSP_FRAME_SYNC:
+- if (arg & NORMAL_SYNC)
++ if (arg & NORMAL_SYNC) {
++ frm_cfg.rec_delay = 1;
+ frm_cfg.tr_delay = 1;
++ }
+ else if (arg & EARLY_SYNC)
+- frm_cfg.tr_delay = 0;
++ frm_cfg.rec_delay = frm_cfg.tr_delay = 0;
++ else if (arg & SECOND_WORD_SYNC) {
++ frm_cfg.rec_delay = 17;
++ frm_cfg.tr_delay = 1;
++ }
++
++
+
+ tr_cfg.bulk_wspace = frm_cfg.tr_delay;
+ frm_cfg.early_wend = regk_sser_yes;
+- if (arg & BIT_SYNC)
++ if (arg & BIT_SYNC)
+ frm_cfg.type = regk_sser_edge;
+ else if (arg & WORD_SYNC)
+ frm_cfg.type = regk_sser_level;
+ else if (arg & EXTENDED_SYNC)
+ frm_cfg.early_wend = regk_sser_no;
+-
++
+ if (arg & SYNC_ON)
+ frm_cfg.frame_pin_use = regk_sser_frm;
+ else if (arg & SYNC_OFF)
+ frm_cfg.frame_pin_use = regk_sser_gio0;
+-
+- if (arg & WORD_SIZE_8)
++
++ if (arg & WORD_SIZE_8) {
+ rec_cfg.sample_size = tr_cfg.sample_size = 7;
+- else if (arg & WORD_SIZE_12)
++ dma_w_size = regk_dma_set_w_size1;
++ }
++ else if (arg & WORD_SIZE_12) {
+ rec_cfg.sample_size = tr_cfg.sample_size = 11;
+- else if (arg & WORD_SIZE_16)
++ dma_w_size = regk_dma_set_w_size2;
++ }
++ else if (arg & WORD_SIZE_16) {
+ rec_cfg.sample_size = tr_cfg.sample_size = 15;
+- else if (arg & WORD_SIZE_24)
++ dma_w_size = regk_dma_set_w_size2;
++ }
++ else if (arg & WORD_SIZE_24) {
+ rec_cfg.sample_size = tr_cfg.sample_size = 23;
+- else if (arg & WORD_SIZE_32)
++ dma_w_size = regk_dma_set_w_size2;
++ }
++ else if (arg & WORD_SIZE_32) {
+ rec_cfg.sample_size = tr_cfg.sample_size = 31;
++ dma_w_size = regk_dma_set_w_size2;
++ }
+
+ if (arg & BIT_ORDER_MSB)
+ rec_cfg.sh_dir = tr_cfg.sh_dir = regk_sser_msbfirst;
+ else if (arg & BIT_ORDER_LSB)
+ rec_cfg.sh_dir = tr_cfg.sh_dir = regk_sser_lsbfirst;
+-
+- if (arg & FLOW_CONTROL_ENABLE)
++
++ if (arg & FLOW_CONTROL_ENABLE) {
++ frm_cfg.status_pin_use = regk_sser_frm;
+ rec_cfg.fifo_thr = regk_sser_thr16;
+- else if (arg & FLOW_CONTROL_DISABLE)
++ }
++ else if (arg & FLOW_CONTROL_DISABLE) {
++ frm_cfg.status_pin_use = regk_sser_gio0;
+ rec_cfg.fifo_thr = regk_sser_inf;
++ }
+
+ if (arg & CLOCK_NOT_GATED)
+ gen_cfg.gate_clk = regk_sser_no;
+ else if (arg & CLOCK_GATED)
+ gen_cfg.gate_clk = regk_sser_yes;
+-
++
+ break;
+ case SSP_IPOLARITY:
+ /* NOTE!! negedge is considered NORMAL */
+@@ -713,12 +786,12 @@
+ rec_cfg.clk_pol = regk_sser_neg;
+ else if (arg & CLOCK_INVERT)
+ rec_cfg.clk_pol = regk_sser_pos;
+-
++
+ if (arg & FRAME_NORMAL)
+ frm_cfg.level = regk_sser_pos_hi;
+ else if (arg & FRAME_INVERT)
+ frm_cfg.level = regk_sser_neg_lo;
+-
++
+ if (arg & STATUS_NORMAL)
+ gen_cfg.hold_pol = regk_sser_pos;
+ else if (arg & STATUS_INVERT)
+@@ -726,15 +799,15 @@
+ break;
+ case SSP_OPOLARITY:
+ if (arg & CLOCK_NORMAL)
+- gen_cfg.out_clk_pol = regk_sser_neg;
+- else if (arg & CLOCK_INVERT)
+ gen_cfg.out_clk_pol = regk_sser_pos;
+-
++ else if (arg & CLOCK_INVERT)
++ gen_cfg.out_clk_pol = regk_sser_neg;
++
+ if (arg & FRAME_NORMAL)
+ frm_cfg.level = regk_sser_pos_hi;
+ else if (arg & FRAME_INVERT)
+ frm_cfg.level = regk_sser_neg_lo;
+-
++
+ if (arg & STATUS_NORMAL)
+ gen_cfg.hold_pol = regk_sser_pos;
+ else if (arg & STATUS_INVERT)
+@@ -772,9 +845,10 @@
+
+ if (port->started)
+ {
+- tr_cfg.tr_en = port->output;
+ rec_cfg.rec_en = port->input;
++ gen_cfg.en = (port->output | port->input);
+ }
++
+
+ REG_WR(sser, port->regi_sser, rw_tr_cfg, tr_cfg);
+ REG_WR(sser, port->regi_sser, rw_rec_cfg, rec_cfg);
+@@ -782,11 +856,24 @@
+ REG_WR(sser, port->regi_sser, rw_intr_mask, intr_mask);
+ REG_WR(sser, port->regi_sser, rw_cfg, gen_cfg);
+
++
++ if (cmd == SSP_FRAME_SYNC &&
++ (arg & (WORD_SIZE_8 | WORD_SIZE_12 | WORD_SIZE_16 | WORD_SIZE_24 | WORD_SIZE_32))) {
++ int en = gen_cfg.en;
++ gen_cfg.en = 0;
++ REG_WR(sser, port->regi_sser, rw_cfg, gen_cfg);
++ /* ##### Should DMA be stoped before we change dma size? */
++ DMA_WR_CMD (port->regi_dmain, dma_w_size);
++ DMA_WR_CMD (port->regi_dmaout, dma_w_size);
++ gen_cfg.en = en;
++ REG_WR(sser, port->regi_sser, rw_cfg, gen_cfg);
++ }
++
+ spin_unlock_irq(&port->lock);
+ return return_val;
+ }
+
+-static ssize_t sync_serial_write(struct file * file, const char * buf,
++static ssize_t sync_serial_write(struct file * file, const char * buf,
+ size_t count, loff_t *ppos)
+ {
+ int dev = iminor(file->f_dentry->d_inode);
+@@ -807,7 +894,7 @@
+
+ DEBUGWRITE(printk("W d%d c %lu (%d/%d)\n", port->port_nbr, count, port->out_count, OUT_BUFFER_SIZE));
+ /* Space to end of buffer */
+- /*
++ /*
+ * out_buffer <c1>012345<- c ->OUT_BUFFER_SIZE
+ * outp^ +out_count
+ ^free_outp
+@@ -824,7 +911,7 @@
+ free_outp = outp + port->out_count;
+ spin_unlock_irqrestore(&port->lock, flags);
+ out_buffer = (unsigned long)port->out_buffer;
+-
++
+ /* Find out where and how much to write */
+ if (free_outp >= out_buffer + OUT_BUFFER_SIZE)
+ free_outp -= OUT_BUFFER_SIZE;
+@@ -834,7 +921,7 @@
+ c = outp - free_outp;
+ if (c > count)
+ c = count;
+-
++
+ // DEBUGWRITE(printk("w op %08lX fop %08lX c %lu\n", outp, free_outp, c));
+ if (copy_from_user((void*)free_outp, buf, c))
+ return -EFAULT;
+@@ -854,13 +941,10 @@
+ if (!port->started)
+ {
+ reg_sser_rw_cfg cfg = REG_RD(sser, port->regi_sser, rw_cfg);
+- reg_sser_rw_tr_cfg tr_cfg = REG_RD(sser, port->regi_sser, rw_tr_cfg);
+ reg_sser_rw_rec_cfg rec_cfg = REG_RD(sser, port->regi_sser, rw_rec_cfg);
+ cfg.en = regk_sser_yes;
+- tr_cfg.tr_en = port->output;
+ rec_cfg.rec_en = port->input;
+ REG_WR(sser, port->regi_sser, rw_cfg, cfg);
+- REG_WR(sser, port->regi_sser, rw_tr_cfg, tr_cfg);
+ REG_WR(sser, port->regi_sser, rw_rec_cfg, rec_cfg);
+ port->started = 1;
+ }
+@@ -887,7 +971,7 @@
+ }
+
+ /* Sleep until all sent */
+-
++
+ add_wait_queue(&port->out_wait_q, &wait);
+ set_current_state(TASK_INTERRUPTIBLE);
+ spin_lock_irqsave(&port->lock, flags);
+@@ -916,13 +1000,13 @@
+ return count;
+ }
+
+-static ssize_t sync_serial_read(struct file * file, char * buf,
++static ssize_t sync_serial_read(struct file * file, char * buf,
+ size_t count, loff_t *ppos)
+ {
+ int dev = iminor(file->f_dentry->d_inode);
+ int avail;
+ sync_port *port;
+- unsigned char* start;
++ unsigned char* start;
+ unsigned char* end;
+ unsigned long flags;
+
+@@ -949,7 +1033,7 @@
+ port->started = 1;
+ }
+
+-
++
+ /* Calculate number of available bytes */
+ /* Save pointers to avoid that they are modified by interrupt */
+ spin_lock_irqsave(&port->lock, flags);
+@@ -958,11 +1042,12 @@
+ spin_unlock_irqrestore(&port->lock, flags);
+ while ((start == end) && !port->full) /* No data */
+ {
++ DEBUGREAD(printk("&"));
+ if (file->f_flags & O_NONBLOCK)
+- {
++ {
+ return -EAGAIN;
+ }
+-
++
+ interruptible_sleep_on(&port->in_wait_q);
+ if (signal_pending(current))
+ {
+@@ -979,9 +1064,9 @@
+ avail = port->in_buffer_size;
+ else if (end > start)
+ avail = end - start;
+- else
++ else
+ avail = port->flip + port->in_buffer_size - start;
+-
++
+ count = count > avail ? avail : count;
+ if (copy_to_user(buf, start, count))
+ return -EFAULT;
+@@ -1016,7 +1101,7 @@
+ data |= *port->outp++;
+ port->out_count-=2;
+ tr_data.data = data;
+- REG_WR(sser, port->regi_sser, rw_tr_data, tr_data);
++ REG_WR(sser, port->regi_sser, rw_tr_data, tr_data);
+ if (port->outp >= port->out_buffer + OUT_BUFFER_SIZE)
+ port->outp = port->out_buffer;
+ }
+@@ -1032,7 +1117,7 @@
+ case 24:
+ port->out_count-=3;
+ tr_data.data = *(unsigned short *)port->outp;
+- REG_WR(sser, port->regi_sser, rw_tr_data, tr_data);
++ REG_WR(sser, port->regi_sser, rw_tr_data, tr_data);
+ port->outp+=2;
+ tr_data.data = *port->outp++;
+ REG_WR(sser, port->regi_sser, rw_tr_data, tr_data);
+@@ -1042,10 +1127,10 @@
+ case 32:
+ port->out_count-=4;
+ tr_data.data = *(unsigned short *)port->outp;
+- REG_WR(sser, port->regi_sser, rw_tr_data, tr_data);
++ REG_WR(sser, port->regi_sser, rw_tr_data, tr_data);
+ port->outp+=2;
+ tr_data.data = *(unsigned short *)port->outp;
+- REG_WR(sser, port->regi_sser, rw_tr_data, tr_data);
++ REG_WR(sser, port->regi_sser, rw_tr_data, tr_data);
+ port->outp+=2;
+ if (port->outp >= port->out_buffer + OUT_BUFFER_SIZE)
+ port->outp = port->out_buffer;
+@@ -1056,15 +1141,27 @@
+
+ static void start_dma(struct sync_port* port, const char* data, int count)
+ {
++ int i;
++ reg_sser_rw_tr_cfg tr_cfg = REG_RD(sser, port->regi_sser, rw_tr_cfg);
+ port->tr_running = 1;
+- port->out_descr.buf = (char*)virt_to_phys((char*)data);
+- port->out_descr.after = port->out_descr.buf + count;
+- port->out_descr.eol = port->out_descr.intr = 1;
++ for (i = 0; i < NUM_OUT_DESCRS; i++)
++ {
++ port->out_descr[i].buf = (char*)virt_to_phys(port->out_buffer + 1024*i);
++ port->out_descr[i].after = port->out_descr[i].buf + 1024;
++ port->out_descr[i].eol = 0;
++ port->out_descr[i].intr = 1;
++ port->out_descr[i].next = virt_to_phys(&port->out_descr[i+1]);
++ }
++ port->out_descr[i-1].next = virt_to_phys(&port->out_descr[0]);
+
+- port->out_context.saved_data = (dma_descr_data*)virt_to_phys(&port->out_descr);
+- port->out_context.saved_data_buf = port->out_descr.buf;
++ port->out_context.saved_data = (dma_descr_data*)virt_to_phys(&port->out_descr[0]);
++ port->out_context.saved_data_buf = port->out_descr[0].buf;
+
+ DMA_START_CONTEXT(port->regi_dmaout, virt_to_phys((char*)&port->out_context));
++
++ tr_cfg.tr_en = regk_sser_yes;
++ REG_WR(sser, port->regi_sser, rw_tr_cfg, tr_cfg);
++
+ DEBUGTXINT(printk("dma %08lX c %d\n", (unsigned long)data, count));
+ }
+
+@@ -1073,7 +1170,7 @@
+ int i;
+ char* buf;
+ port->writep = port->flip;
+-
++
+ if (port->writep > port->flip + port->in_buffer_size)
+ {
+ panic("Offset too large in sync serial driver\n");
+@@ -1099,7 +1196,7 @@
+ }
+
+ #ifdef SYNC_SER_DMA
+-static irqreturn_t tr_interrupt(int irq, void *dev_id, struct pt_regs * regs)
++static irqreturn_t tr_interrupt(int irq, void *dev_id)
+ {
+ reg_dma_r_masked_intr masked;
+ reg_dma_rw_ack_intr ack_intr = {.data = regk_dma_yes};
+@@ -1108,7 +1205,7 @@
+ unsigned int sentl;
+ int found = 0;
+
+- for (i = 0; i < NUMBER_OF_PORTS; i++)
++ for (i = 0; i < NUMBER_OF_PORTS; i++)
+ {
+ sync_port *port = &ports[i];
+ if (!port->enabled || !port->use_dma )
+@@ -1133,18 +1230,21 @@
+ if (c > port->out_count)
+ c = port->out_count;
+ DEBUGTXINT(printk("tx_int DMAWRITE %i %i\n", sentl, c));
+- start_dma(port, port->outp, c);
++ //start_dma(port, port->outp, c);
+ } else {
+- DEBUGTXINT(printk("tx_int DMA stop %i\n", sentl));
++ reg_sser_rw_tr_cfg tr_cfg = REG_RD(sser, port->regi_sser, rw_tr_cfg);
++ DEBUGTXINT(printk("tx_int DMA stop %i\n", sentl));
+ port->tr_running = 0;
++ tr_cfg.tr_en = regk_sser_no;
++ REG_WR(sser, port->regi_sser, rw_tr_cfg, tr_cfg);
+ }
+ wake_up_interruptible(&port->out_wait_q); /* wake up the waiting process */
+- }
++ }
+ }
+ return IRQ_RETVAL(found);
+ } /* tr_interrupt */
+
+-static irqreturn_t rx_interrupt(int irq, void *dev_id, struct pt_regs * regs)
++static irqreturn_t rx_interrupt(int irq, void *dev_id)
+ {
+ reg_dma_r_masked_intr masked;
+ reg_dma_rw_ack_intr ack_intr = {.data = regk_dma_yes};
+@@ -1152,7 +1252,7 @@
+ int i;
+ int found = 0;
+
+- for (i = 0; i < NUMBER_OF_PORTS; i++)
++ for (i = 0; i < NUMBER_OF_PORTS; i++)
+ {
+ sync_port *port = &ports[i];
+
+@@ -1164,17 +1264,17 @@
+ if (masked.data) /* Descriptor interrupt */
+ {
+ found = 1;
+- while (REG_RD(dma, port->regi_dmain, rw_data) !=
++ while (REG_RD(dma, port->regi_dmain, rw_data) !=
+ virt_to_phys(port->next_rx_desc)) {
+-
++ DEBUGRXINT(printk("!"));
+ if (port->writep + port->inbufchunk > port->flip + port->in_buffer_size) {
+ int first_size = port->flip + port->in_buffer_size - port->writep;
+ memcpy((char*)port->writep, phys_to_virt((unsigned)port->next_rx_desc->buf), first_size);
+ memcpy(port->flip, phys_to_virt((unsigned)port->next_rx_desc->buf+first_size), port->inbufchunk - first_size);
+ port->writep = port->flip + port->inbufchunk - first_size;
+ } else {
+- memcpy((char*)port->writep,
+- phys_to_virt((unsigned)port->next_rx_desc->buf),
++ memcpy((char*)port->writep,
++ phys_to_virt((unsigned)port->next_rx_desc->buf),
+ port->inbufchunk);
+ port->writep += port->inbufchunk;
+ if (port->writep >= port->flip + port->in_buffer_size)
+@@ -1184,11 +1284,13 @@
+ {
+ port->full = 1;
+ }
+-
+- port->next_rx_desc->eol = 0;
+- port->prev_rx_desc->eol = 1;
+- port->prev_rx_desc = phys_to_virt((unsigned)port->next_rx_desc);
++
++ port->next_rx_desc->eol = 1;
++ port->prev_rx_desc->eol = 0;
++ flush_dma_descr(port->prev_rx_desc,0); // Cache bug workaround
++ port->prev_rx_desc = port->next_rx_desc;
+ port->next_rx_desc = phys_to_virt((unsigned)port->next_rx_desc->next);
++ flush_dma_descr(port->prev_rx_desc,1); // Cache bug workaround
+ wake_up_interruptible(&port->in_wait_q); /* wake up the waiting process */
+ DMA_CONTINUE(port->regi_dmain);
+ REG_WR(dma, port->regi_dmain, rw_ack_intr, ack_intr);
+@@ -1201,7 +1303,7 @@
+ #endif /* SYNC_SER_DMA */
+
+ #ifdef SYNC_SER_MANUAL
+-static irqreturn_t manual_interrupt(int irq, void *dev_id, struct pt_regs * regs)
++static irqreturn_t manual_interrupt(int irq, void *dev_id)
+ {
+ int i;
+ int found = 0;
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/Makefile linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/Makefile
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/Makefile 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/Makefile 2006-12-06 14:17:02.000000000 +0100
+@@ -1,4 +1,4 @@
+-# $Id: Makefile,v 1.11 2004/12/17 10:16:13 starvik Exp $
++# $Id: Makefile,v 1.13 2006/12/06 13:17:02 starvik Exp $
+ #
+ # Makefile for the linux kernel.
+ #
+@@ -8,7 +8,7 @@
+
+ obj-y := entry.o traps.o irq.o debugport.o dma.o pinmux.o \
+ process.o ptrace.o setup.o signal.o traps.o time.o \
+- arbiter.o io.o
++ arbiter.o io.o cache.o cacheflush.o
+
+ obj-$(CONFIG_ETRAXFS_SIM) += vcs_hook.o
+
+@@ -16,6 +16,7 @@
+ obj-$(CONFIG_ETRAX_KGDB) += kgdb.o kgdb_asm.o
+ obj-$(CONFIG_ETRAX_FAST_TIMER) += fasttimer.o
+ obj-$(CONFIG_MODULES) += crisksyms.o
++obj-$(CONFIG_CPU_FREQ) += cpufreq.o
+
+ clean:
+
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/arbiter.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/arbiter.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/arbiter.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/arbiter.c 2006-10-13 14:43:13.000000000 +0200
+@@ -6,7 +6,7 @@
+ * bandwidth (e.g. ethernet) and then the remaining slots are divided
+ * on all the active clients.
+ *
+- * Copyright (c) 2004, 2005 Axis Communications AB.
++ * Copyright (c) 2004, 2005, 2006 Axis Communications AB.
+ */
+
+ #include <asm/arch/hwregs/reg_map.h>
+@@ -44,35 +44,88 @@
+ {regi_marb_bp3}
+ };
+
+-static int requested_slots[NBR_OF_REGIONS][NBR_OF_CLIENTS];
+-static int active_clients[NBR_OF_REGIONS][NBR_OF_CLIENTS];
++static u8 requested_slots[NBR_OF_REGIONS][NBR_OF_CLIENTS];
++static u8 active_clients[NBR_OF_REGIONS][NBR_OF_CLIENTS];
+ static int max_bandwidth[NBR_OF_REGIONS] = {SDRAM_BANDWIDTH, INTMEM_BANDWIDTH};
+
+ DEFINE_SPINLOCK(arbiter_lock);
+
+-static irqreturn_t
++static irqreturn_t
+ crisv32_arbiter_irq(int irq, void* dev_id, struct pt_regs* regs);
+
+-static void crisv32_arbiter_config(int region)
++/*
++ * "I'm the arbiter, I know the score.
++ * From square one I'll be watching all 64."
++ * (memory arbiter slots, that is)
++ *
++ * Or in other words:
++ * Program the memory arbiter slots for "region" according to what's
++ * in requested_slots[] and active_clients[], while minimizing
++ * latency. A caller may pass a non-zero positive amount for
++ * "unused_slots", which must then be the unallocated, remaining
++ * number of slots, free to hand out to any client.
++ */
++
++static void crisv32_arbiter_config(int region, int unused_slots)
+ {
+ int slot;
+ int client;
+ int interval = 0;
+- int val[NBR_OF_SLOTS];
++
++ /*
++ * This vector corresponds to the hardware arbiter slots (see
++ * the hardware documentation for semantics). We initialize
++ * each slot with a suitable sentinel value outside the valid
++ * range {0 .. NBR_OF_CLIENTS - 1} and replace them with
++ * client indexes. Then it's fed to the hardware.
++ */
++ s8 val[NBR_OF_SLOTS];
+
+ for (slot = 0; slot < NBR_OF_SLOTS; slot++)
+- val[slot] = NBR_OF_CLIENTS + 1;
++ val[slot] = -1;
+
+ for (client = 0; client < NBR_OF_CLIENTS; client++)
+ {
+ int pos;
++ /* Allocate the requested non-zero number of slots, but
++ * also give clients with zero-requests one slot each
++ * while stocks last. We do the latter here, in client
++ * order. This makes sure zero-request clients are the
++ * first to get to any spare slots, else those slots
++ * could, when bandwidth is allocated close to the limit,
++ * all be allocated to low-index non-zero-request clients
++ * in the default-fill loop below. Another positive but
++ * secondary effect is a somewhat better spread of the
++ * zero-bandwidth clients in the vector, avoiding some of
++ * the latency that could otherwise be caused by the
++ * partitioning of non-zero-bandwidth clients at low
++ * indexes and zero-bandwidth clients at high
++ * indexes. (Note that this spreading can only affect the
++ * unallocated bandwidth.) All the above only matters for
++ * memory-intensive situations, of course.
++ */
+ if (!requested_slots[region][client])
+- continue;
+- interval = NBR_OF_SLOTS / requested_slots[region][client];
++ {
++ /*
++ * Skip inactive clients. Also skip zero-slot
++ * allocations in this pass when there are no known
++ * free slots.
++ */
++ if (!active_clients[region][client] || unused_slots <= 0)
++ continue;
++
++ unused_slots--;
++
++ /* Only allocate one slot for this client. */
++ interval = NBR_OF_SLOTS;
++ }
++ else
++ interval = NBR_OF_SLOTS / requested_slots[region][client];
++
+ pos = 0;
+ while (pos < NBR_OF_SLOTS)
+ {
+- if (val[pos] != NBR_OF_CLIENTS + 1)
++ if (val[pos] >= 0)
+ pos++;
+ else
+ {
+@@ -85,7 +138,13 @@
+ client = 0;
+ for (slot = 0; slot < NBR_OF_SLOTS; slot++)
+ {
+- if (val[slot] == NBR_OF_CLIENTS + 1)
++ /*
++ * Allocate remaining slots in round-robin
++ * client-number order for active clients. For this
++ * pass, we ignore requested bandwidth and previous
++ * allocations.
++ */
++ if (val[slot] < 0)
+ {
+ int first = client;
+ while(!active_clients[region][client]) {
+@@ -100,7 +159,7 @@
+ REG_WR_INT_VECT(marb, regi_marb, rw_ext_slots, slot, val[slot]);
+ else if (region == INT_REGION)
+ REG_WR_INT_VECT(marb, regi_marb, rw_int_slots, slot, val[slot]);
+- }
++ }
+ }
+
+ extern char _stext, _etext;
+@@ -111,18 +170,28 @@
+
+ if (initialized)
+ return;
+-
++
+ initialized = 1;
+
+- /* CPU caches are active. */
+- active_clients[EXT_REGION][10] = active_clients[EXT_REGION][11] = 1;
+- crisv32_arbiter_config(EXT_REGION);
+- crisv32_arbiter_config(INT_REGION);
++ /*
++ * CPU caches are always set to active, but with zero
++ * bandwidth allocated. It should be ok to allocate zero
++ * bandwidth for the caches, because DMA for other channels
++ * will supposedly finish, once their programmed amount is
++ * done, and then the caches will get access according to the
++ * "fixed scheme" for unclaimed slots. Though, if for some
++ * use-case somewhere, there's a maximum CPU latency for
++ * e.g. some interrupt, we have to start allocating specific
++ * bandwidth for the CPU caches too.
++ */
++ active_clients[EXT_REGION][10] = active_clients[EXT_REGION][11] = 1;
++ crisv32_arbiter_config(EXT_REGION, 0);
++ crisv32_arbiter_config(INT_REGION, 0);
+
+ if (request_irq(MEMARB_INTR_VECT, crisv32_arbiter_irq, IRQF_DISABLED,
+ "arbiter", NULL))
+ printk(KERN_ERR "Couldn't allocate arbiter IRQ\n");
+-
++
+ #ifndef CONFIG_ETRAX_KGDB
+ /* Global watch for writes to kernel text segment. */
+ crisv32_arbiter_watch(virt_to_phys(&_stext), &_etext - &_stext,
+@@ -130,6 +199,7 @@
+ #endif
+ }
+
++/* Main entry for bandwidth allocation. */
+
+
+ int crisv32_arbiter_allocate_bandwidth(int client, int region,
+@@ -141,39 +211,76 @@
+ int req;
+
+ crisv32_arbiter_init();
+-
++
+ for (i = 0; i < NBR_OF_CLIENTS; i++)
+ {
+ total_assigned += requested_slots[region][i];
+ total_clients += active_clients[region][i];
+ }
+- req = NBR_OF_SLOTS / (max_bandwidth[region] / bandwidth);
+
+- if (total_assigned + total_clients + req + 1 > NBR_OF_SLOTS)
++ /* Avoid division by 0 for 0-bandwidth requests. */
++ req = bandwidth == 0
++ ? 0 : NBR_OF_SLOTS / (max_bandwidth[region] / bandwidth);
++
++ /*
++ * We make sure that there are enough slots only for non-zero
++ * requests. Requesting 0 bandwidth *may* allocate slots,
++ * though if all bandwidth is allocated, such a client won't
++ * get any and will have to rely on getting memory access
++ * according to the fixed scheme that's the default when one
++ * of the slot-allocated clients doesn't claim their slot.
++ */
++ if (total_assigned + req > NBR_OF_SLOTS)
+ return -ENOMEM;
+
+ active_clients[region][client] = 1;
+ requested_slots[region][client] = req;
+- crisv32_arbiter_config(region);
++ crisv32_arbiter_config(region, NBR_OF_SLOTS - total_assigned);
+
+ return 0;
+ }
+
++/*
++ * Main entry for bandwidth deallocation.
++ *
++ * Strictly speaking, for a somewhat constant set of clients where
++ * each client gets a constant bandwidth and is just enabled or
++ * disabled (somewhat dynamically), no action is necessary here to
++ * avoid starvation for non-zero-allocation clients, as the allocated
++ * slots will just be unused. However, handing out those unused slots
++ * to active clients avoids needless latency if the "fixed scheme"
++ * would give unclaimed slots to an eager low-index client.
++ */
++
++void crisv32_arbiter_deallocate_bandwidth(int client, int region)
++{
++ int i;
++ int total_assigned = 0;
++
++ requested_slots[region][client] = 0;
++ active_clients[region][client] = 0;
++
++ for (i = 0; i < NBR_OF_CLIENTS; i++)
++ total_assigned += requested_slots[region][i];
++
++ crisv32_arbiter_config(region, NBR_OF_SLOTS - total_assigned);
++}
++
+ int crisv32_arbiter_watch(unsigned long start, unsigned long size,
+ unsigned long clients, unsigned long accesses,
+ watch_callback* cb)
+ {
+ int i;
+-
++
+ crisv32_arbiter_init();
+-
++
+ if (start > 0x80000000) {
+ printk("Arbiter: %lX doesn't look like a physical address", start);
+ return -EFAULT;
+ }
+
+ spin_lock(&arbiter_lock);
+-
++
+ for (i = 0; i < NUMBER_OF_BP; i++) {
+ if (!watches[i].used) {
+ reg_marb_rw_intr_mask intr_mask = REG_RD(marb, regi_marb, rw_intr_mask);
+@@ -214,7 +321,7 @@
+ crisv32_arbiter_init();
+
+ spin_lock(&arbiter_lock);
+-
++
+ if ((id < 0) || (id >= NUMBER_OF_BP) || (!watches[id].used)) {
+ spin_unlock(&arbiter_lock);
+ return -EINVAL;
+@@ -239,7 +346,7 @@
+
+ extern void show_registers(struct pt_regs *regs);
+
+-static irqreturn_t
++static irqreturn_t
+ crisv32_arbiter_irq(int irq, void* dev_id, struct pt_regs* regs)
+ {
+ reg_marb_r_masked_intr masked_intr = REG_RD(marb, regi_marb, r_masked_intr);
+@@ -248,10 +355,10 @@
+ reg_marb_bp_r_brk_op r_op;
+ reg_marb_bp_r_brk_first_client r_first;
+ reg_marb_bp_r_brk_size r_size;
+- reg_marb_bp_rw_ack ack = {0};
++ reg_marb_bp_rw_ack ack = {0};
+ reg_marb_rw_ack_intr ack_intr = {.bp0=1,.bp1=1,.bp2=1,.bp3=1};
+ struct crisv32_watch_entry* watch;
+-
++
+ if (masked_intr.bp0) {
+ watch = &watches[0];
+ ack_intr.bp0 = regk_marb_yes;
+@@ -291,6 +398,6 @@
+ if (watch->cb)
+ watch->cb();
+
+-
++
+ return IRQ_HANDLED;
+ }
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/asm-offsets.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/asm-offsets.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/asm-offsets.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/asm-offsets.c 2003-06-02 10:39:38.000000000 +0200
+@@ -16,8 +16,8 @@
+ {
+ #define ENTRY(entry) DEFINE(PT_ ## entry, offsetof(struct pt_regs, entry))
+ ENTRY(orig_r10);
+- ENTRY(r13);
+- ENTRY(r12);
++ ENTRY(r13);
++ ENTRY(r12);
+ ENTRY(r11);
+ ENTRY(r10);
+ ENTRY(r9);
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/cache.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/cache.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/cache.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/cache.c 2007-01-23 13:09:57.000000000 +0100
+@@ -0,0 +1,31 @@
++#include <linux/module.h>
++#include <asm/io.h>
++#include <asm/arch/cache.h>
++#include <asm/arch/hwregs/dma.h>
++
++// This file is used to workaround a cache bug, Guinness TR 106
++
++inline void flush_dma_descr(dma_descr_data* descr, int flush_buf)
++{
++ // Flush descriptor to make sure we get correct in_eop and after
++ asm volatile ("ftagd [%0]" :: "r" (descr));
++ // Flush buffer pointed out by descriptor
++ if (flush_buf)
++ cris_flush_cache_range(phys_to_virt((unsigned)descr->buf), (unsigned)(descr->after - descr->buf));
++}
++
++void flush_dma_list(dma_descr_data* descr)
++{
++ while(1)
++ {
++ flush_dma_descr(descr, 1);
++ if (descr->eol)
++ break;
++ descr = phys_to_virt((unsigned)descr->next);
++ }
++}
++
++EXPORT_SYMBOL(flush_dma_list);
++EXPORT_SYMBOL(flush_dma_descr);
++EXPORT_SYMBOL(cris_flush_cache);
++EXPORT_SYMBOL(cris_flush_cache_range);
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/cacheflush.S linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/cacheflush.S
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/cacheflush.S 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/cacheflush.S 2006-12-06 14:17:02.000000000 +0100
+@@ -0,0 +1,93 @@
++ .global cris_flush_cache_range
++cris_flush_cache_range:
++ move.d 1024, $r12
++ cmp.d $r11, $r12
++ bhi cris_flush_1KB
++ nop
++ add.d $r10, $r11
++cris_flush_last:
++ addq 32, $r10
++ cmp.d $r11, $r10
++ blt cris_flush_last
++ ftagd [$r10]
++ ret
++ nop
++cris_flush_1KB:
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ftagd [$r10]
++ addq 32, $r10
++ ba cris_flush_cache_range
++ sub.d $r12, $r11
++
++ .global cris_flush_cache
++cris_flush_cache:
++ moveq 0, $r10
++cris_flush_line:
++ move.d 16*1024, $r11
++ addq 16, $r10
++ cmp.d $r10, $r11
++ blt cris_flush_line
++ fidxd [$r10]
++ ret
++ nop
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/cpufreq.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/cpufreq.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/cpufreq.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/cpufreq.c 2006-11-03 11:35:52.000000000 +0100
+@@ -0,0 +1,147 @@
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/cpufreq.h>
++#include <asm/arch/hwregs/reg_map.h>
++#include <asm/arch/hwregs/reg_rdwr.h>
++#include <asm/arch/hwregs/config_defs.h>
++#include <asm/arch/hwregs/bif_core_defs.h>
++
++static int
++cris_sdram_freq_notifier(struct notifier_block *nb, unsigned long val, void *data);
++
++static struct notifier_block cris_sdram_freq_notifier_block = {
++ .notifier_call = cris_sdram_freq_notifier
++};
++
++static struct cpufreq_frequency_table cris_freq_table[] = {
++ {0x01, 6000},
++ {0x02, 200000},
++ {0, CPUFREQ_TABLE_END},
++};
++
++static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)
++{
++ reg_config_rw_clk_ctrl clk_ctrl;
++ clk_ctrl = REG_RD(config, regi_config, rw_clk_ctrl);
++ return clk_ctrl.pll ? 200000 : 6000;
++}
++
++static void cris_freq_set_cpu_state (unsigned int state)
++{
++ int i;
++ struct cpufreq_freqs freqs;
++ reg_config_rw_clk_ctrl clk_ctrl;
++ clk_ctrl = REG_RD(config, regi_config, rw_clk_ctrl);
++
++ for_each_cpu(i) {
++ freqs.old = cris_freq_get_cpu_frequency(i);
++ freqs.new = cris_freq_table[state].frequency;
++ freqs.cpu = i;
++ }
++
++ cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
++
++ local_irq_disable();
++
++ // Even though we may be SMP they will share the same clock
++ // so all settings are made on CPU0.
++ if (cris_freq_table[state].frequency == 200000)
++ clk_ctrl.pll = 1;
++ else
++ clk_ctrl.pll = 0;
++ REG_WR(config, regi_config, rw_clk_ctrl, clk_ctrl);
++
++ local_irq_enable();
++
++ cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
++};
++
++static int cris_freq_verify (struct cpufreq_policy *policy)
++{
++ return cpufreq_frequency_table_verify(policy, &cris_freq_table[0]);
++}
++
++static int cris_freq_target (struct cpufreq_policy *policy,
++ unsigned int target_freq,
++ unsigned int relation)
++{
++ unsigned int newstate = 0;
++
++ if (cpufreq_frequency_table_target(policy, cris_freq_table, target_freq, relation, &newstate))
++ return -EINVAL;
++
++ cris_freq_set_cpu_state(newstate);
++
++ return 0;
++}
++
++static int cris_freq_cpu_init(struct cpufreq_policy *policy)
++{
++ int result;
++
++ /* cpuinfo and default policy values */
++ policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
++ policy->cpuinfo.transition_latency = 1000000; /* 1ms */
++ policy->cur = cris_freq_get_cpu_frequency(0);
++
++ result = cpufreq_frequency_table_cpuinfo(policy, cris_freq_table);
++ if (result)
++ return (result);
++
++ cpufreq_frequency_table_get_attr(cris_freq_table, policy->cpu);
++
++ return 0;
++}
++
++
++static int cris_freq_cpu_exit(struct cpufreq_policy *policy)
++{
++ cpufreq_frequency_table_put_attr(policy->cpu);
++ return 0;
++}
++
++
++static struct freq_attr* cris_freq_attr[] = {
++ &cpufreq_freq_attr_scaling_available_freqs,
++ NULL,
++};
++
++static struct cpufreq_driver cris_freq_driver = {
++ .get = cris_freq_get_cpu_frequency,
++ .verify = cris_freq_verify,
++ .target = cris_freq_target,
++ .init = cris_freq_cpu_init,
++ .exit = cris_freq_cpu_exit,
++ .name = "cris_freq",
++ .owner = THIS_MODULE,
++ .attr = cris_freq_attr,
++};
++
++static int __init cris_freq_init(void)
++{
++ int ret;
++ ret = cpufreq_register_driver(&cris_freq_driver);
++ cpufreq_register_notifier(&cris_sdram_freq_notifier_block,
++ CPUFREQ_TRANSITION_NOTIFIER);
++ return ret;
++}
++
++static int
++cris_sdram_freq_notifier(struct notifier_block *nb, unsigned long val, void *data)
++{
++ int i;
++ struct cpufreq_freqs *freqs = data;
++ if (val == CPUFREQ_PRECHANGE) {
++ reg_bif_core_rw_sdram_timing timing =
++ REG_RD(bif_core, regi_bif_core, rw_sdram_timing);
++ timing.cpd = (freqs->new == 200000 ? 0 : 1);
++
++ if (freqs->new == 200000)
++ for (i = 0; i < 50000; i++);
++ REG_WR(bif_core, regi_bif_core, rw_sdram_timing, timing);
++ }
++ return 0;
++}
++
++
++module_init(cris_freq_init);
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/crisksyms.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/crisksyms.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/crisksyms.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/crisksyms.c 2006-11-21 04:21:34.000000000 +0100
+@@ -3,6 +3,7 @@
+ #include <asm/arch/dma.h>
+ #include <asm/arch/intmem.h>
+ #include <asm/arch/pinmux.h>
++#include <asm/arch/io.h>
+
+ /* Functions for allocating DMA channels */
+ EXPORT_SYMBOL(crisv32_request_dma);
+@@ -16,7 +17,11 @@
+
+ /* Functions for handling pinmux */
+ EXPORT_SYMBOL(crisv32_pinmux_alloc);
++EXPORT_SYMBOL(crisv32_pinmux_alloc_fixed);
+ EXPORT_SYMBOL(crisv32_pinmux_dealloc);
++EXPORT_SYMBOL(crisv32_pinmux_dealloc_fixed);
++EXPORT_SYMBOL(crisv32_io_get_name);
++EXPORT_SYMBOL(crisv32_io_get);
+
+ /* Functions masking/unmasking interrupts */
+ EXPORT_SYMBOL(mask_irq);
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/debugport.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/debugport.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/debugport.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/debugport.c 2006-10-13 14:43:13.000000000 +0200
+@@ -4,18 +4,13 @@
+
+ #include <linux/console.h>
+ #include <linux/init.h>
+-#include <linux/major.h>
+-#include <linux/delay.h>
+-#include <linux/tty.h>
+ #include <asm/system.h>
+-#include <asm/io.h>
++#include <asm/arch/hwregs/reg_rdwr.h>
++#include <asm/arch/hwregs/reg_map.h>
+ #include <asm/arch/hwregs/ser_defs.h>
+ #include <asm/arch/hwregs/dma_defs.h>
+ #include <asm/arch/pinmux.h>
+
+-#include <asm/irq.h>
+-#include <asm/arch/hwregs/intr_vect_defs.h>
+-
+ struct dbg_port
+ {
+ unsigned char nbr;
+@@ -26,7 +21,7 @@
+ unsigned int bits;
+ };
+
+-struct dbg_port ports[] =
++struct dbg_port ports[] =
+ {
+ {
+ 0,
+@@ -89,15 +84,6 @@
+ #endif
+ #endif
+
+-#ifdef CONFIG_ETRAXFS_SIM
+-extern void print_str( const char *str );
+-static char buffer[1024];
+-static char msg[] = "Debug: ";
+-static int buffer_pos = sizeof(msg) - 1;
+-#endif
+-
+-extern struct tty_driver *serial_driver;
+-
+ static void
+ start_port(struct dbg_port* p)
+ {
+@@ -118,7 +104,7 @@
+ /* Set up serial port registers */
+ reg_ser_rw_tr_ctrl tr_ctrl = {0};
+ reg_ser_rw_tr_dma_en tr_dma_en = {0};
+-
++
+ reg_ser_rw_rec_ctrl rec_ctrl = {0};
+ reg_ser_rw_tr_baud_div tr_baud_div = {0};
+ reg_ser_rw_rec_baud_div rec_baud_div = {0};
+@@ -148,6 +134,7 @@
+ tr_ctrl.data_bits = regk_ser_bits7;
+ rec_ctrl.data_bits = regk_ser_bits7;
+ }
++
+
+ REG_WR (ser, p->instance, rw_tr_baud_div, tr_baud_div);
+ REG_WR (ser, p->instance, rw_rec_baud_div, rec_baud_div);
+@@ -156,124 +143,21 @@
+ REG_WR (ser, p->instance, rw_rec_ctrl, rec_ctrl);
+ }
+
+-/* No debug */
+-#ifdef CONFIG_ETRAX_DEBUG_PORT_NULL
+-
+-static void
+-console_write(struct console *co, const char *buf, unsigned int len)
+-{
+- return;
+-}
+-
+-/* Target debug */
+-#elif !defined(CONFIG_ETRAXFS_SIM)
+-
+-static void
+-console_write_direct(struct console *co, const char *buf, unsigned int len)
+-{
+- int i;
+- reg_ser_r_stat_din stat;
+- reg_ser_rw_tr_dma_en tr_dma_en, old;
+-
+- /* Switch to manual mode */
+- tr_dma_en = old = REG_RD (ser, port->instance, rw_tr_dma_en);
+- if (tr_dma_en.en == regk_ser_yes) {
+- tr_dma_en.en = regk_ser_no;
+- REG_WR(ser, port->instance, rw_tr_dma_en, tr_dma_en);
+- }
+-
+- /* Send data */
+- for (i = 0; i < len; i++) {
+- /* LF -> CRLF */
+- if (buf[i] == '\n') {
+- do {
+- stat = REG_RD (ser, port->instance, r_stat_din);
+- } while (!stat.tr_rdy);
+- REG_WR_INT (ser, port->instance, rw_dout, '\r');
+- }
+- /* Wait until transmitter is ready and send.*/
+- do {
+- stat = REG_RD (ser, port->instance, r_stat_din);
+- } while (!stat.tr_rdy);
+- REG_WR_INT (ser, port->instance, rw_dout, buf[i]);
+- }
+-
+- /* Restore mode */
+- if (tr_dma_en.en != old.en)
+- REG_WR(ser, port->instance, rw_tr_dma_en, old);
+-}
+-
+-static void
+-console_write(struct console *co, const char *buf, unsigned int len)
+-{
+- if (!port)
+- return;
+- console_write_direct(co, buf, len);
+-}
+-
+-
+-
+-#else
+-
+-/* VCS debug */
+-
+-static void
+-console_write(struct console *co, const char *buf, unsigned int len)
+-{
+- char* pos;
+- pos = memchr(buf, '\n', len);
+- if (pos) {
+- int l = ++pos - buf;
+- memcpy(buffer + buffer_pos, buf, l);
+- memcpy(buffer, msg, sizeof(msg) - 1);
+- buffer[buffer_pos + l] = '\0';
+- print_str(buffer);
+- buffer_pos = sizeof(msg) - 1;
+- if (pos - buf != len) {
+- memcpy(buffer + buffer_pos, pos, len - l);
+- buffer_pos += len - l;
+- }
+- } else {
+- memcpy(buffer + buffer_pos, buf, len);
+- buffer_pos += len;
+- }
+-}
+-
+-#endif
+-
+-int raw_printk(const char *fmt, ...)
+-{
+- static char buf[1024];
+- int printed_len;
+- va_list args;
+- va_start(args, fmt);
+- printed_len = vsnprintf(buf, sizeof(buf), fmt, args);
+- va_end(args);
+- console_write(NULL, buf, strlen(buf));
+- return printed_len;
+-}
+-
+-void
+-stupid_debug(char* buf)
+-{
+- console_write(NULL, buf, strlen(buf));
+-}
+-
+ #ifdef CONFIG_ETRAX_KGDB
+ /* Use polling to get a single character from the kernel debug port */
+ int
+ getDebugChar(void)
+ {
+- reg_ser_rs_status_data stat;
++ reg_ser_rs_stat_din stat;
+ reg_ser_rw_ack_intr ack_intr = { 0 };
+
+ do {
+- stat = REG_RD(ser, kgdb_instance, rs_status_data);
+- } while (!stat.data_avail);
++ stat = REG_RD(ser, kgdb_port->instance, rs_stat_din);
++ } while (!stat.dav);
+
+ /* Ack the data_avail interrupt. */
+- ack_intr.data_avail = 1;
+- REG_WR(ser, kgdb_instance, rw_ack_intr, ack_intr);
++ ack_intr.dav = 1;
++ REG_WR(ser, kgdb_port->instance, rw_ack_intr, ack_intr);
+
+ return stat.data;
+ }
+@@ -282,173 +166,18 @@
+ void
+ putDebugChar(int val)
+ {
+- reg_ser_r_status_data stat;
++ reg_ser_r_stat_din stat;
+ do {
+- stat = REG_RD (ser, kgdb_instance, r_status_data);
+- } while (!stat.tr_ready);
+- REG_WR (ser, kgdb_instance, rw_data_out, REG_TYPE_CONV(reg_ser_rw_data_out, int, val));
++ stat = REG_RD (ser, kgdb_port->instance, r_stat_din);
++ } while (!stat.tr_rdy);
++ REG_WR_INT (ser, kgdb_port->instance, rw_dout, val);
+ }
+ #endif /* CONFIG_ETRAX_KGDB */
+
+-static int __init
+-console_setup(struct console *co, char *options)
+-{
+- char* s;
+-
+- if (options) {
+- port = &ports[co->index];
+- port->baudrate = 115200;
+- port->parity = 'N';
+- port->bits = 8;
+- port->baudrate = simple_strtoul(options, NULL, 10);
+- s = options;
+- while(*s >= '0' && *s <= '9')
+- s++;
+- if (*s) port->parity = *s++;
+- if (*s) port->bits = *s++ - '0';
+- port->started = 0;
+- start_port(port);
+- }
+- return 0;
+-}
+-
+-/* This is a dummy serial device that throws away anything written to it.
+- * This is used when no debug output is wanted.
+- */
+-static struct tty_driver dummy_driver;
+-
+-static int dummy_open(struct tty_struct *tty, struct file * filp)
+-{
+- return 0;
+-}
+-
+-static void dummy_close(struct tty_struct *tty, struct file * filp)
+-{
+-}
+-
+-static int dummy_write(struct tty_struct * tty,
+- const unsigned char *buf, int count)
+-{
+- return count;
+-}
+-
+-static int
+-dummy_write_room(struct tty_struct *tty)
+-{
+- return 8192;
+-}
+-
+-void __init
+-init_dummy_console(void)
+-{
+- memset(&dummy_driver, 0, sizeof(struct tty_driver));
+- dummy_driver.driver_name = "serial";
+- dummy_driver.name = "ttyS";
+- dummy_driver.major = TTY_MAJOR;
+- dummy_driver.minor_start = 68;
+- dummy_driver.num = 1; /* etrax100 has 4 serial ports */
+- dummy_driver.type = TTY_DRIVER_TYPE_SERIAL;
+- dummy_driver.subtype = SERIAL_TYPE_NORMAL;
+- dummy_driver.init_termios = tty_std_termios;
+- dummy_driver.init_termios.c_cflag =
+- B115200 | CS8 | CREAD | HUPCL | CLOCAL; /* is normally B9600 default... */
+- dummy_driver.flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
+-
+- dummy_driver.open = dummy_open;
+- dummy_driver.close = dummy_close;
+- dummy_driver.write = dummy_write;
+- dummy_driver.write_room = dummy_write_room;
+- if (tty_register_driver(&dummy_driver))
+- panic("Couldn't register dummy serial driver\n");
+-}
+-
+-static struct tty_driver*
+-crisv32_console_device(struct console* co, int *index)
+-{
+- if (port)
+- *index = port->nbr;
+- return port ? serial_driver : &dummy_driver;
+-}
+-
+-static struct console sercons = {
+- name : "ttyS",
+- write: console_write,
+- read : NULL,
+- device : crisv32_console_device,
+- unblank : NULL,
+- setup : console_setup,
+- flags : CON_PRINTBUFFER,
+- index : -1,
+- cflag : 0,
+- next : NULL
+-};
+-static struct console sercons0 = {
+- name : "ttyS",
+- write: console_write,
+- read : NULL,
+- device : crisv32_console_device,
+- unblank : NULL,
+- setup : console_setup,
+- flags : CON_PRINTBUFFER,
+- index : 0,
+- cflag : 0,
+- next : NULL
+-};
+-
+-static struct console sercons1 = {
+- name : "ttyS",
+- write: console_write,
+- read : NULL,
+- device : crisv32_console_device,
+- unblank : NULL,
+- setup : console_setup,
+- flags : CON_PRINTBUFFER,
+- index : 1,
+- cflag : 0,
+- next : NULL
+-};
+-static struct console sercons2 = {
+- name : "ttyS",
+- write: console_write,
+- read : NULL,
+- device : crisv32_console_device,
+- unblank : NULL,
+- setup : console_setup,
+- flags : CON_PRINTBUFFER,
+- index : 2,
+- cflag : 0,
+- next : NULL
+-};
+-static struct console sercons3 = {
+- name : "ttyS",
+- write: console_write,
+- read : NULL,
+- device : crisv32_console_device,
+- unblank : NULL,
+- setup : console_setup,
+- flags : CON_PRINTBUFFER,
+- index : 3,
+- cflag : 0,
+- next : NULL
+-};
+-
+ /* Register console for printk's, etc. */
+ int __init
+ init_etrax_debug(void)
+ {
+- static int first = 1;
+-
+- if (!first) {
+- unregister_console(&sercons);
+- register_console(&sercons0);
+- register_console(&sercons1);
+- register_console(&sercons2);
+- register_console(&sercons3);
+- init_dummy_console();
+- return 0;
+- }
+- first = 0;
+- register_console(&sercons);
+ start_port(port);
+
+ #ifdef CONFIG_ETRAX_KGDB
+@@ -456,5 +185,3 @@
+ #endif /* CONFIG_ETRAX_KGDB */
+ return 0;
+ }
+-
+-__initcall(init_etrax_debug);
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/dma.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/dma.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/dma.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/dma.c 2007-02-02 08:45:22.000000000 +0100
+@@ -12,6 +12,16 @@
+ #include <asm/system.h>
+ #include <asm/arch/arbiter.h>
+
++/*
++ * The memory region we allocated bandwidth for is stored in
++ * used_dma_channels as an in-use flag.
++ */
++enum dma_region_allocated_marker {
++ DMA_NO_REGION_ALLOCATED = 0,
++ DMA_INT_REGION_ALLOCATED = 1,
++ DMA_EXT_REGION_ALLOCATED = 2
++};
++
+ static char used_dma_channels[MAX_DMA_CHANNELS];
+ static const char * used_dma_channels_users[MAX_DMA_CHANNELS];
+
+@@ -74,7 +84,7 @@
+ if (options & DMA_VERBOSE_ON_ERROR) {
+ printk("Failed to request DMA %i for %s, only 0-%i valid)\n", dmanr, device_id, MAX_DMA_CHANNELS-1);
+ }
+-
++
+ if (options & DMA_PANIC_ON_ERROR)
+ panic("request_dma error!");
+ return -EINVAL;
+@@ -202,13 +212,14 @@
+ if (dmanr == 3)
+ strmux_cfg.dma3 = regk_strmux_ext3;
+ else if (dmanr == 9)
+- strmux_cfg.dma9 = regk_strmux_ext2;
++ strmux_cfg.dma9 = regk_strmux_ext3;
+ else
+- panic("Invalid DMA channel for ext2\n");
++ panic("Invalid DMA channel for ext3\n");
+ break;
+ }
+
+- used_dma_channels[dmanr] = 1;
++ used_dma_channels[dmanr] = options & DMA_INT_MEM
++ ? DMA_INT_REGION_ALLOCATED : DMA_EXT_REGION_ALLOCATED;
+ used_dma_channels_users[dmanr] = device_id;
+ REG_WR(config, regi_config, rw_clk_ctrl, clk_ctrl);
+ REG_WR(strmux, regi_strmux, rw_cfg, strmux_cfg);
+@@ -218,7 +229,12 @@
+
+ void crisv32_free_dma(unsigned int dmanr)
+ {
++ int region;
++
+ spin_lock(&dma_lock);
++ region = used_dma_channels[dmanr] == DMA_INT_REGION_ALLOCATED
++ ? INT_REGION : EXT_REGION;
+ used_dma_channels[dmanr] = 0;
++ crisv32_arbiter_deallocate_bandwidth(dmanr, region);
+ spin_unlock(&dma_lock);
+ }
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/entry.S linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/entry.S
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/entry.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/entry.S 2007-01-09 10:29:19.000000000 +0100
+@@ -11,7 +11,7 @@
+ *
+ * Stack layout in 'ret_from_system_call':
+ * ptrace needs to have all regs on the stack.
+- * if the order here is changed, it needs to be
++ * if the order here is changed, it needs to be
+ * updated in fork.c:copy_process, signal.c:do_signal,
+ * ptrace.c and ptrace.h
+ *
+@@ -40,7 +40,7 @@
+ .globl sys_call_table
+
+ ; Check if preemptive kernel scheduling should be done.
+-#ifdef CONFIG_PREEMPT
++#ifdef CONFIG_PREEMPT
+ _resume_kernel:
+ di
+ ; Load current task struct.
+@@ -81,7 +81,7 @@
+ nop
+ ba ret_from_sys_call
+ nop
+-
++
+ ret_from_intr:
+ ;; Check for resched if preemptive kernel, or if we're going back to
+ ;; user-mode. This test matches the user_regs(regs) macro. Don't simply
+@@ -93,7 +93,7 @@
+ bpl _resume_kernel
+
+ ; Note that di below is in delay slot.
+-
++
+ _resume_userspace:
+ di ; So need_resched and sigpending don't change.
+
+@@ -107,19 +107,19 @@
+ nop
+ ba _Rexit
+ nop
+-
++
+ ;; The system_call is called by a BREAK instruction, which looks pretty
+ ;; much like any other exception.
+ ;;
+ ;; System calls can't be made from interrupts but we still stack ERP
+ ;; to have a complete stack frame.
+- ;;
++ ;;
+ ;; In r9 we have the wanted syscall number. Arguments come in r10,r11,r12,
+ ;; r13,mof,srp
+ ;;
+ ;; This function looks on the _surface_ like spaghetti programming, but it's
+- ;; really designed so that the fast-path does not force cache-loading of
+- ;; non-used instructions. Only the non-common cases cause the outlined code
++ ;; really designed so that the fast-path does not force cache-loading of
++ ;; non-used instructions. Only the non-common cases cause the outlined code
+ ;; to run..
+
+ system_call:
+@@ -151,7 +151,7 @@
+ or.d (1<<9), $r0
+ move $r0, $ccs
+ #endif
+-
++
+ movs.w -ENOSYS, $r0
+ addoq +PT_r10, $sp, $acr
+ move.d $r0, [$acr]
+@@ -166,9 +166,9 @@
+ bmi _syscall_trace_entry
+ nop
+
+-_syscall_traced:
++_syscall_traced:
+ ;; Check for sanity in the requested syscall number.
+- cmpu.w NR_syscalls, $r9
++ cmpu.w NR_syscalls, $r9
+ bhs ret_from_sys_call
+ lslq 2, $r9 ; Multiply by 4, in the delay slot.
+
+@@ -177,7 +177,7 @@
+ move.d $sp, $r0
+ subq 4, $sp
+ move.d $r0, [$sp]
+-
++
+ ;; The registers carrying parameters (R10-R13) are intact. The optional
+ ;; fifth and sixth parameters is in MOF and SRP respectivly. Put them
+ ;; back on the stack.
+@@ -185,33 +185,33 @@
+ move $srp, [$sp]
+ subq 4, $sp
+ move $mof, [$sp]
+-
++
+ ;; Actually to the system call.
+ addo.d +sys_call_table, $r9, $acr
+ move.d [$acr], $acr
+ jsr $acr
+ nop
+-
++
+ addq 3*4, $sp ; Pop the mof, srp and regs parameters.
+ addoq +PT_r10, $sp, $acr
+ move.d $r10, [$acr] ; Save the return value.
+
+- moveq 1, $r9 ; "Parameter" to ret_from_sys_call to
++ moveq 1, $r9 ; "Parameter" to ret_from_sys_call to
+ ; show it was a sys call.
+-
++
+ ;; Fall through into ret_from_sys_call to return.
+-
++
+ ret_from_sys_call:
+ ;; R9 is a parameter:
+ ;; >= 1 from syscall
+ ;; 0 from irq
+-
++
+ ;; Get the current task-struct pointer.
+- movs.w -8192, $r0 ; THREAD_SIZE == 8192
++ movs.w -8192, $r0 ; THREAD_SIZE == 8192
+ and.d $sp, $r0
+
+ di ; Make sure need_resched and sigpending don't change.
+-
++
+ addoq +TI_flags, $r0, $acr
+ move.d [$acr], $r1
+ and.d _TIF_ALLWORK_MASK, $r1
+@@ -253,14 +253,14 @@
+ move.d $r1, $r9
+ ba _resume_userspace
+ nop
+-
++
+ _work_pending:
+ addoq +TI_flags, $r0, $acr
+ move.d [$acr], $r10
+ btstq TIF_NEED_RESCHED, $r10 ; Need resched?
+ bpl _work_notifysig ; No, must be signal/notify.
+ nop
+-
++
+ _work_resched:
+ move.d $r9, $r1 ; Preserve R9.
+ jsr schedule
+@@ -281,28 +281,26 @@
+ ;; Deal with pending signals and notify-resume requests.
+
+ addoq +TI_flags, $r0, $acr
+- move.d [$acr], $r13 ; The thread_info_flags parameter.
+- move.d $r9, $r10 ; do_notify_resume syscall/irq param.
+- moveq 0, $r11 ; oldset param - 0 in this case.
+- move.d $sp, $r12 ; The regs param.
++ move.d [$acr], $r12 ; The thread_info_flags parameter.
++ move.d $sp, $r11 ; The regs param.
+ jsr do_notify_resume
+- nop
+-
++ move.d $r9, $r10 ; do_notify_resume syscall/irq param.
++
+ ba _Rexit
+ nop
+
+ ;; We get here as a sidetrack when we've entered a syscall with the
+ ;; trace-bit set. We need to call do_syscall_trace and then continue
+ ;; with the call.
+-
++
+ _syscall_trace_entry:
+ ;; PT_r10 in the frame contains -ENOSYS as required, at this point.
+-
++
+ jsr do_syscall_trace
+ nop
+
+ ;; Now re-enter the syscall code to do the syscall itself. We need to
+- ;; restore R9 here to contain the wanted syscall, and the other
++ ;; restore R9 here to contain the wanted syscall, and the other
+ ;; parameter-bearing registers.
+ addoq +PT_r9, $sp, $acr
+ move.d [$acr], $r9
+@@ -318,10 +316,10 @@
+ move [$acr], $mof
+ addoq +PT_srp, $sp, $acr
+ move [$acr], $srp
+-
++
+ ba _syscall_traced
+ nop
+-
++
+ ;; Resume performs the actual task-switching, by switching stack
+ ;; pointers. Input arguments are:
+ ;;
+@@ -331,7 +329,7 @@
+ ;;
+ ;; Returns old current in R10.
+
+-resume:
++resume:
+ subq 4, $sp
+ move $srp, [$sp] ; Keep old/new PC on the stack.
+ add.d $r12, $r10 ; R10 = current tasks tss.
+@@ -341,14 +339,14 @@
+
+ addoq +THREAD_usp, $r10, $acr
+ move $usp, [$acr] ; Save user-mode stackpointer.
+-
++
+ ;; See copy_thread for the reason why register R9 is saved.
+ subq 10*4, $sp
+ movem $r9, [$sp] ; Save non-scratch registers and R9.
+-
++
+ addoq +THREAD_ksp, $r10, $acr
+ move.d $sp, [$acr] ; Save kernel SP for old task.
+-
++
+ move.d $sp, $r10 ; Return last running task in R10.
+ and.d -8192, $r10 ; Get thread_info from stackpointer.
+ addoq +TI_task, $r10, $acr
+@@ -360,7 +358,7 @@
+
+ addoq +THREAD_usp, $r11, $acr
+ move [$acr], $usp ; Restore user-mode stackpointer.
+-
++
+ addoq +THREAD_ccs, $r11, $acr
+ move [$acr], $ccs ; Restore IRQ enable status.
+ move.d [$sp+], $acr
+@@ -407,7 +405,7 @@
+ movem [$sp+], $r13
+ move.d [$sp+], $acr
+ move [$sp], $srs
+- addq 4, $sp
++ addq 4, $sp
+ move [$sp+], $mof
+ move [$sp+], $spc
+ move [$sp+], $ccs
+@@ -419,7 +417,7 @@
+
+ .comm cause_of_death, 4 ;; Don't declare this anywhere.
+
+-spurious_interrupt:
++spurious_interrupt:
+ di
+ jump hard_reset_now
+ nop
+@@ -494,31 +492,38 @@
+ ;; thread_info as first parameter
+ move.d $r9, $r10
+ moveq 5, $r11 ; SIGTRAP as second argument.
+- jsr ugdb_trap_user
++ jsr ugdb_trap_user
+ nop
+ jump ret_from_intr ; Use the return routine for interrupts.
+ nop
+-
+-gdb_handle_exception:
++
++gdb_handle_exception:
+ subq 4, $sp
+ move.d $r0, [$sp]
+ #ifdef CONFIG_ETRAX_KGDB
+- move $ccs, $r0 ; U-flag not affected by previous insns.
++ move $ccs, $r0 ; U-flag not affected by previous insns.
+ btstq 16, $r0 ; Test the U-flag.
+- bmi _ugdb_handle_exception ; Go to user mode debugging.
+- nop ; Empty delay-slot (cannot pop R0 here).
++ bmi _ugdb_handle_exception ; Go to user mode debugging.
++ nop ; Empty delay-slot (cannot pop R0 here).
+ ba kgdb_handle_exception ; Go to kernel debugging.
+ move.d [$sp+], $r0 ; Restore R0 in delay slot.
+ #endif
+-
++
+ _ugdb_handle_exception:
+ ba do_sigtrap ; SIGTRAP the offending process.
+ move.d [$sp+], $r0 ; Restore R0 in delay slot.
+
++ .global kernel_execve
++kernel_execve:
++ move.d __NR_execve, $r9
++ break 13
++ ret
++ nop
++
+ .data
+
+ .section .rodata,"a"
+-sys_call_table:
++sys_call_table:
+ .long sys_restart_syscall ; 0 - old "setup()" system call, used
+ ; for restarting.
+ .long sys_exit
+@@ -647,7 +652,7 @@
+ .long sys_adjtimex
+ .long sys_mprotect /* 125 */
+ .long sys_sigprocmask
+- .long sys_ni_syscall /* old "create_module" */
++ .long sys_ni_syscall /* old "create_module" */
+ .long sys_init_module
+ .long sys_delete_module
+ .long sys_ni_syscall /* 130: old "get_kernel_syms" */
+@@ -789,7 +794,7 @@
+ .long sys_clock_getres
+ .long sys_clock_nanosleep
+ .long sys_statfs64
+- .long sys_fstatfs64
++ .long sys_fstatfs64
+ .long sys_tgkill /* 270 */
+ .long sys_utimes
+ .long sys_fadvise64_64
+@@ -805,7 +810,43 @@
+ .long sys_mq_getsetattr
+ .long sys_ni_syscall /* reserved for kexec */
+ .long sys_waitid
+-
++ .long sys_ni_syscall /* 285 */ /* available */
++ .long sys_add_key
++ .long sys_request_key
++ .long sys_keyctl
++ .long sys_ioprio_set
++ .long sys_ioprio_get /* 290 */
++ .long sys_inotify_init
++ .long sys_inotify_add_watch
++ .long sys_inotify_rm_watch
++ .long sys_migrate_pages
++ .long sys_openat /* 295 */
++ .long sys_mkdirat
++ .long sys_mknodat
++ .long sys_fchownat
++ .long sys_futimesat
++ .long sys_fstatat64 /* 300 */
++ .long sys_unlinkat
++ .long sys_renameat
++ .long sys_linkat
++ .long sys_symlinkat
++ .long sys_readlinkat /* 305 */
++ .long sys_fchmodat
++ .long sys_faccessat
++ .long sys_pselect6
++ .long sys_ppoll
++ .long sys_unshare /* 310 */
++ .long sys_set_robust_list
++ .long sys_set_robust_list
++ .long sys_get_robust_list
++ .long sys_splice
++ .long sys_sync_file_range
++ .long sys_tee /* 315 */
++ .long sys_vmsplice
++ .long sys_move_pages
++ .long sys_getcpu
++ .long sys_epoll_pwait
++
+ /*
+ * NOTE!! This doesn't have to be exact - we just have
+ * to make sure we have _enough_ of the "sys_ni_syscall"
+@@ -816,4 +857,4 @@
+ .rept NR_syscalls - (.-sys_call_table) / 4
+ .long sys_ni_syscall
+ .endr
+-
++
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/fasttimer.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/fasttimer.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/fasttimer.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/fasttimer.c 2007-01-09 10:29:19.000000000 +0100
+@@ -1,110 +1,10 @@
+-/* $Id: fasttimer.c,v 1.11 2005/01/04 11:15:46 starvik Exp $
++/*
+ * linux/arch/cris/kernel/fasttimer.c
+ *
+ * Fast timers for ETRAX FS
+ * This may be useful in other OS than Linux so use 2 space indentation...
+ *
+- * $Log: fasttimer.c,v $
+- * Revision 1.11 2005/01/04 11:15:46 starvik
+- * Don't share timer IRQ.
+- *
+- * Revision 1.10 2004/12/07 09:19:38 starvik
+- * Corrected includes.
+- * Use correct interrupt macros.
+- *
+- * Revision 1.9 2004/05/14 10:18:58 starvik
+- * Export fast_timer_list
+- *
+- * Revision 1.8 2004/05/14 07:58:03 starvik
+- * Merge of changes from 2.4
+- *
+- * Revision 1.7 2003/07/10 12:06:14 starvik
+- * Return IRQ_NONE if irq wasn't handled
+- *
+- * Revision 1.6 2003/07/04 08:27:49 starvik
+- * Merge of Linux 2.5.74
+- *
+- * Revision 1.5 2003/06/05 10:16:22 johana
+- * New INTR_VECT macros.
+- *
+- * Revision 1.4 2003/06/03 08:49:45 johana
+- * Fixed typo.
+- *
+- * Revision 1.3 2003/06/02 12:51:27 johana
+- * Now compiles.
+- * Commented some include files that probably can be removed.
+- *
+- * Revision 1.2 2003/06/02 12:09:41 johana
+- * Ported to ETRAX FS using the trig interrupt instead of timer1.
+- *
+- * Revision 1.3 2002/12/12 08:26:32 starvik
+- * Don't use C-comments inside CVS comments
+- *
+- * Revision 1.2 2002/12/11 15:42:02 starvik
+- * Extracted v10 (ETRAX 100LX) specific stuff from arch/cris/kernel/
+- *
+- * Revision 1.1 2002/11/18 07:58:06 starvik
+- * Fast timers (from Linux 2.4)
+- *
+- * Revision 1.5 2002/10/15 06:21:39 starvik
+- * Added call to init_waitqueue_head
+- *
+- * Revision 1.4 2002/05/28 17:47:59 johana
+- * Added del_fast_timer()
+- *
+- * Revision 1.3 2002/05/28 16:16:07 johana
+- * Handle empty fast_timer_list
+- *
+- * Revision 1.2 2002/05/27 15:38:42 johana
+- * Made it compile without warnings on Linux 2.4.
+- * (includes, wait_queue, PROC_FS and snprintf)
+- *
+- * Revision 1.1 2002/05/27 15:32:25 johana
+- * arch/etrax100/kernel/fasttimer.c v1.8 from the elinux tree.
+- *
+- * Revision 1.8 2001/11/27 13:50:40 pkj
+- * Disable interrupts while stopping the timer and while modifying the
+- * list of active timers in timer1_handler() as it may be interrupted
+- * by other interrupts (e.g., the serial interrupt) which may add fast
+- * timers.
+- *
+- * Revision 1.7 2001/11/22 11:50:32 pkj
+- * * Only store information about the last 16 timers.
+- * * proc_fasttimer_read() now uses an allocated buffer, since it
+- * requires more space than just a page even for only writing the
+- * last 16 timers. The buffer is only allocated on request, so
+- * unless /proc/fasttimer is read, it is never allocated.
+- * * Renamed fast_timer_started to fast_timers_started to match
+- * fast_timers_added and fast_timers_expired.
+- * * Some clean-up.
+- *
+- * Revision 1.6 2000/12/13 14:02:08 johana
+- * Removed volatile for fast_timer_list
+- *
+- * Revision 1.5 2000/12/13 13:55:35 johana
+- * Added DEBUG_LOG, added som cli() and cleanup
+- *
+- * Revision 1.4 2000/12/05 13:48:50 johana
+- * Added range check when writing proc file, modified timer int handling
+- *
+- * Revision 1.3 2000/11/23 10:10:20 johana
+- * More debug/logging possibilities.
+- * Moved GET_JIFFIES_USEC() to timex.h and time.c
+- *
+- * Revision 1.2 2000/11/01 13:41:04 johana
+- * Clean up and bugfixes.
+- * Created new do_gettimeofday_fast() that gets a timeval struct
+- * with time based on jiffies and *R_TIMER0_DATA, uses a table
+- * for fast conversion of timer value to microseconds.
+- * (Much faster the standard do_gettimeofday() and we don't really
+- * wan't to use the true time - we wan't the "uptime" so timers don't screw up
+- * when we change the time.
+- * TODO: Add efficient support for continuous timers as well.
+- *
+- * Revision 1.1 2000/10/26 15:49:16 johana
+- * Added fasttimer, highresolution timers.
+- *
+- * Copyright (C) 2000,2001 2002, 2003 Axis Communications AB, Lund, Sweden
++ * Copyright (C) 2000-2006 Axis Communications AB, Lund, Sweden
+ */
+
+ #include <linux/errno.h>
+@@ -128,13 +28,13 @@
+ #include <asm/fasttimer.h>
+ #include <linux/proc_fs.h>
+
+-/*
+- * timer0 is running at 100MHz and generating jiffies timer ticks
++/*
++ * timer0 is running at 100MHz and generating jiffies timer ticks
+ * at 100 or 1000 HZ.
+ * fasttimer gives an API that gives timers that expire "between" the jiffies
+ * giving microsecond resolution (10 ns).
+ * fasttimer uses reg_timer_rw_trig register to get interrupt when
+- * r_time reaches a certain value.
++ * r_time reaches a certain value.
+ */
+
+
+@@ -151,19 +51,19 @@
+ #define SANITYCHECK(x)
+ #endif
+
+-#define D1(x)
+-#define D2(x)
+-#define DP(x)
++#define D1(x)
++#define D2(x)
++#define DP(x)
+
+ #define __INLINE__ inline
+
+-static int fast_timer_running = 0;
+-static int fast_timers_added = 0;
+-static int fast_timers_started = 0;
+-static int fast_timers_expired = 0;
+-static int fast_timers_deleted = 0;
+-static int fast_timer_is_init = 0;
+-static int fast_timer_ints = 0;
++static unsigned int fast_timer_running = 0;
++static unsigned int fast_timers_added = 0;
++static unsigned int fast_timers_started = 0;
++static unsigned int fast_timers_expired = 0;
++static unsigned int fast_timers_deleted = 0;
++static unsigned int fast_timer_is_init = 0;
++static unsigned int fast_timer_ints = 0;
+
+ struct fast_timer *fast_timer_list = NULL;
+
+@@ -171,8 +71,8 @@
+ #define DEBUG_LOG_MAX 128
+ static const char * debug_log_string[DEBUG_LOG_MAX];
+ static unsigned long debug_log_value[DEBUG_LOG_MAX];
+-static int debug_log_cnt = 0;
+-static int debug_log_cnt_wrapped = 0;
++static unsigned int debug_log_cnt = 0;
++static unsigned int debug_log_cnt_wrapped = 0;
+
+ #define DEBUG_LOG(string, value) \
+ { \
+@@ -202,48 +102,33 @@
+ int timer_div_settings[NUM_TIMER_STATS];
+ int timer_delay_settings[NUM_TIMER_STATS];
+
++struct work_struct fast_work;
+
+ static void
+-timer_trig_handler(void);
++timer_trig_handler(void* dummy);
+
+
+
+ /* Not true gettimeofday, only checks the jiffies (uptime) + useconds */
+-void __INLINE__ do_gettimeofday_fast(struct timeval *tv)
++void __INLINE__ do_gettimeofday_fast(struct fasttime_t *tv)
+ {
+- unsigned long sec = jiffies;
+- unsigned long usec = GET_JIFFIES_USEC();
+-
+- usec += (sec % HZ) * (1000000 / HZ);
+- sec = sec / HZ;
+-
+- if (usec > 1000000)
+- {
+- usec -= 1000000;
+- sec++;
+- }
+- tv->tv_sec = sec;
+- tv->tv_usec = usec;
++ tv->tv_jiff = jiffies;
++ tv->tv_usec = GET_JIFFIES_USEC();
+ }
+
+-int __INLINE__ timeval_cmp(struct timeval *t0, struct timeval *t1)
++int __INLINE__ timeval_cmp(struct fasttime_t *t0, struct fasttime_t *t1)
+ {
+- if (t0->tv_sec < t1->tv_sec)
+- {
++ /* Compare jiffies. Takes care of wrapping */
++ if (time_before(t0->tv_jiff, t1->tv_jiff))
+ return -1;
+- }
+- else if (t0->tv_sec > t1->tv_sec)
+- {
++ else if (time_after(t0->tv_jiff, t1->tv_jiff))
+ return 1;
+- }
++
++ /* Compare us */
+ if (t0->tv_usec < t1->tv_usec)
+- {
+ return -1;
+- }
+ else if (t0->tv_usec > t1->tv_usec)
+- {
+ return 1;
+- }
+ return 0;
+ }
+
+@@ -254,20 +139,23 @@
+ reg_timer_rw_intr_mask intr_mask;
+ reg_timer_rw_trig trig;
+ reg_timer_rw_trig_cfg trig_cfg = { 0 };
+- reg_timer_r_time r_time;
+-
+- r_time = REG_RD(timer, regi_timer, r_time);
++ reg_timer_r_time r_time0;
++ reg_timer_r_time r_time1;
++ unsigned char trig_wrap;
++ unsigned char time_wrap;
+
++ r_time0 = REG_RD(timer, regi_timer, r_time);
++
+ D1(printk("start_timer_trig : %d us freq: %i div: %i\n",
+ delay_us, freq_index, div));
+ /* Clear trig irq */
+ intr_mask = REG_RD(timer, regi_timer, rw_intr_mask);
+ intr_mask.trig = 0;
+ REG_WR(timer, regi_timer, rw_intr_mask, intr_mask);
+-
+- /* Set timer values */
++
++ /* Set timer values and check if trigger wraps. */
+ /* r_time is 100MHz (10 ns resolution) */
+- trig = r_time + delay_us*(1000/10);
++ trig_wrap = (trig = r_time0 + delay_us*(1000/10)) < r_time0;
+
+ timer_div_settings[fast_timers_started % NUM_TIMER_STATS] = trig;
+ timer_delay_settings[fast_timers_started % NUM_TIMER_STATS] = delay_us;
+@@ -275,15 +163,17 @@
+ /* Ack interrupt */
+ ack_intr.trig = 1;
+ REG_WR(timer, regi_timer, rw_ack_intr, ack_intr);
+-
++
+ /* Start timer */
+ REG_WR(timer, regi_timer, rw_trig, trig);
+ trig_cfg.tmr = regk_timer_time;
+ REG_WR(timer, regi_timer, rw_trig_cfg, trig_cfg);
+
+ /* Check if we have already passed the trig time */
+- r_time = REG_RD(timer, regi_timer, r_time);
+- if (r_time < trig) {
++ r_time1 = REG_RD(timer, regi_timer, r_time);
++ time_wrap = r_time1 < r_time0;
++
++ if ((trig_wrap && !time_wrap) || (r_time1 < trig)) {
+ /* No, Enable trig irq */
+ intr_mask = REG_RD(timer, regi_timer, rw_intr_mask);
+ intr_mask.trig = 1;
+@@ -291,16 +181,17 @@
+ fast_timers_started++;
+ fast_timer_running = 1;
+ }
+- else
++ else
+ {
+ /* We have passed the time, disable trig point, ack intr */
+ trig_cfg.tmr = regk_timer_off;
+ REG_WR(timer, regi_timer, rw_trig_cfg, trig_cfg);
+ REG_WR(timer, regi_timer, rw_ack_intr, ack_intr);
+- /* call the int routine directly */
+- timer_trig_handler();
++ /* call the int routine */
++ INIT_WORK(&fast_work, timer_trig_handler, (void*)NULL);
++ schedule_work(&fast_work);
+ }
+-
++
+ }
+
+ /* In version 1.4 this function takes 27 - 50 us */
+@@ -327,7 +218,7 @@
+ {
+ printk("timer name: %s data: 0x%08lX already in list!\n", name, data);
+ sanity_failed++;
+- return;
++ goto done;
+ }
+ else
+ {
+@@ -343,11 +234,11 @@
+ t->name = name;
+
+ t->tv_expires.tv_usec = t->tv_set.tv_usec + delay_us % 1000000;
+- t->tv_expires.tv_sec = t->tv_set.tv_sec + delay_us / 1000000;
++ t->tv_expires.tv_jiff = t->tv_set.tv_jiff + delay_us / 1000000 / HZ;
+ if (t->tv_expires.tv_usec > 1000000)
+ {
+ t->tv_expires.tv_usec -= 1000000;
+- t->tv_expires.tv_sec++;
++ t->tv_expires.tv_jiff += HZ;
+ }
+ #ifdef FAST_TIMER_LOG
+ timer_added_log[fast_timers_added % NUM_TIMER_STATS] = *t;
+@@ -388,6 +279,7 @@
+
+ D2(printk("start_one_shot_timer: %d us done\n", delay_us));
+
++done:
+ local_irq_restore(flags);
+ } /* start_one_shot_timer */
+
+@@ -431,26 +323,32 @@
+ /* Timer interrupt handler for trig interrupts */
+
+ static irqreturn_t
+-timer_trig_interrupt(int irq, void *dev_id, struct pt_regs *regs)
++timer_trig_interrupt(int irq, void *dev_id)
+ {
+ reg_timer_r_masked_intr masked_intr;
+-
+ /* Check if the timer interrupt is for us (a trig int) */
+ masked_intr = REG_RD(timer, regi_timer, r_masked_intr);
+ if (!masked_intr.trig)
+ return IRQ_NONE;
+- timer_trig_handler();
++ timer_trig_handler(NULL);
+ return IRQ_HANDLED;
+ }
+
+-static void timer_trig_handler(void)
++static void timer_trig_handler(void* dummy)
+ {
+ reg_timer_rw_ack_intr ack_intr = { 0 };
+ reg_timer_rw_intr_mask intr_mask;
+ reg_timer_rw_trig_cfg trig_cfg = { 0 };
+ struct fast_timer *t;
+- unsigned long flags;
++ unsigned long flags;
+
++ /* We keep interrupts disabled not only when we modify the
++ * fast timer list, but any time we hold a reference to a
++ * timer in the list, since del_fast_timer may be called
++ * from (another) interrupt context. Thus, the only time
++ * when interrupts are enabled is when calling the timer
++ * callback function.
++ */
+ local_irq_save(flags);
+
+ /* Clear timer trig interrupt */
+@@ -470,16 +368,17 @@
+ fast_timer_running = 0;
+ fast_timer_ints++;
+
+- local_irq_restore(flags);
++ fast_timer_function_type *f;
++ unsigned long d;
+
+ t = fast_timer_list;
+ while (t)
+ {
+- struct timeval tv;
++ struct fasttime_t tv;
+
+ /* Has it really expired? */
+ do_gettimeofday_fast(&tv);
+- D1(printk("t: %is %06ius\n", tv.tv_sec, tv.tv_usec));
++ D1(printk("t: %is %06ius\n", tv.tv_jiff, tv.tv_usec));
+
+ if (timeval_cmp(&t->tv_expires, &tv) <= 0)
+ {
+@@ -490,7 +389,6 @@
+ fast_timers_expired++;
+
+ /* Remove this timer before call, since it may reuse the timer */
+- local_irq_save(flags);
+ if (t->prev)
+ {
+ t->prev->next = t->next;
+@@ -505,11 +403,21 @@
+ }
+ t->prev = NULL;
+ t->next = NULL;
+- local_irq_restore(flags);
+
+- if (t->function != NULL)
++ /* Save function callback data before enabling interrupts,
++ * since the timer may be removed and we don't know how it
++ * was allocated (e.g. ->function and ->data may become
++ * overwritten after deletion if the timer was stack-allocated).
++ */
++ f = t->function;
++ d = t->data;
++
++ if (f != NULL)
+ {
+- t->function(t->data);
++ /* Run the callback function with interrupts enabled. */
++ local_irq_restore(flags);
++ f(d);
++ local_irq_save(flags);
+ }
+ else
+ {
+@@ -522,16 +430,19 @@
+ D1(printk(".\n"));
+ }
+
+- local_irq_save(flags);
+ if ((t = fast_timer_list) != NULL)
+ {
+ /* Start next timer.. */
+- long us;
+- struct timeval tv;
++ long us = 0;
++ struct fasttime_t tv;
+
+ do_gettimeofday_fast(&tv);
+- us = ((t->tv_expires.tv_sec - tv.tv_sec) * 1000000 +
+- t->tv_expires.tv_usec - tv.tv_usec);
++
++ /* time_after_eq takes care of wrapping */
++ if (time_after_eq(t->tv_expires.tv_jiff, tv.tv_jiff))
++ us = ((t->tv_expires.tv_jiff - tv.tv_jiff) * 1000000 / HZ +
++ t->tv_expires.tv_usec - tv.tv_usec);
++
+ if (us > 0)
+ {
+ if (!fast_timer_running)
+@@ -541,7 +452,6 @@
+ #endif
+ start_timer_trig(us);
+ }
+- local_irq_restore(flags);
+ break;
+ }
+ else
+@@ -552,9 +462,10 @@
+ D1(printk("e! %d\n", us));
+ }
+ }
+- local_irq_restore(flags);
+ }
+
++ local_irq_restore(flags);
++
+ if (!t)
+ {
+ D1(printk("ttrig stop!\n"));
+@@ -577,28 +488,17 @@
+ void schedule_usleep(unsigned long us)
+ {
+ struct fast_timer t;
+-#ifdef DECLARE_WAITQUEUE
+ wait_queue_head_t sleep_wait;
+ init_waitqueue_head(&sleep_wait);
+- {
+- DECLARE_WAITQUEUE(wait, current);
+-#else
+- struct wait_queue *sleep_wait = NULL;
+- struct wait_queue wait = { current, NULL };
+-#endif
+
+ D1(printk("schedule_usleep(%d)\n", us));
+- add_wait_queue(&sleep_wait, &wait);
+- set_current_state(TASK_INTERRUPTIBLE);
+ start_one_shot_timer(&t, wake_up_func, (unsigned long)&sleep_wait, us,
+ "usleep");
+- schedule();
+- set_current_state(TASK_RUNNING);
+- remove_wait_queue(&sleep_wait, &wait);
++ /* Uninterruptible sleep on the fast timer. (The condition is somewhat
++ redundant since the timer is what wakes us up.) */
++ wait_event(sleep_wait, !fast_timer_pending(&t));
++
+ D1(printk("done schedule_usleep(%d)\n", us));
+-#ifdef DECLARE_WAITQUEUE
+- }
+-#endif
+ }
+
+ #ifdef CONFIG_PROC_FS
+@@ -638,7 +538,7 @@
+ unsigned long flags;
+ int i = 0;
+ int num_to_show;
+- struct timeval tv;
++ struct fasttime_t tv;
+ struct fast_timer *t, *nextt;
+ static char *bigbuf = NULL;
+ static unsigned long used;
+@@ -646,7 +546,8 @@
+ if (!bigbuf && !(bigbuf = vmalloc(BIG_BUF_SIZE)))
+ {
+ used = 0;
+- bigbuf[0] = '\0';
++ if (buf)
++ buf[0] = '\0';
+ return 0;
+ }
+
+@@ -668,7 +569,7 @@
+ used += sprintf(bigbuf + used, "Fast timer running: %s\n",
+ fast_timer_running ? "yes" : "no");
+ used += sprintf(bigbuf + used, "Current time: %lu.%06lu\n",
+- (unsigned long)tv.tv_sec,
++ (unsigned long)tv.tv_jiff,
+ (unsigned long)tv.tv_usec);
+ #ifdef FAST_TIMER_SANITY_CHECKS
+ used += sprintf(bigbuf + used, "Sanity failed: %i\n",
+@@ -717,9 +618,9 @@
+ "d: %6li us data: 0x%08lX"
+ "\n",
+ t->name,
+- (unsigned long)t->tv_set.tv_sec,
++ (unsigned long)t->tv_set.tv_jiff,
+ (unsigned long)t->tv_set.tv_usec,
+- (unsigned long)t->tv_expires.tv_sec,
++ (unsigned long)t->tv_expires.tv_jiff,
+ (unsigned long)t->tv_expires.tv_usec,
+ t->delay_us,
+ t->data
+@@ -739,9 +640,9 @@
+ "d: %6li us data: 0x%08lX"
+ "\n",
+ t->name,
+- (unsigned long)t->tv_set.tv_sec,
++ (unsigned long)t->tv_set.tv_jiff,
+ (unsigned long)t->tv_set.tv_usec,
+- (unsigned long)t->tv_expires.tv_sec,
++ (unsigned long)t->tv_expires.tv_jiff,
+ (unsigned long)t->tv_expires.tv_usec,
+ t->delay_us,
+ t->data
+@@ -759,9 +660,9 @@
+ "d: %6li us data: 0x%08lX"
+ "\n",
+ t->name,
+- (unsigned long)t->tv_set.tv_sec,
++ (unsigned long)t->tv_set.tv_jiff,
+ (unsigned long)t->tv_set.tv_usec,
+- (unsigned long)t->tv_expires.tv_sec,
++ (unsigned long)t->tv_expires.tv_jiff,
+ (unsigned long)t->tv_expires.tv_usec,
+ t->delay_us,
+ t->data
+@@ -772,7 +673,6 @@
+
+ used += sprintf(bigbuf + used, "Active timers:\n");
+ local_irq_save(flags);
+- local_irq_save(flags);
+ t = fast_timer_list;
+ while (t != NULL && (used+100 < BIG_BUF_SIZE))
+ {
+@@ -783,15 +683,15 @@
+ /* " func: 0x%08lX" */
+ "\n",
+ t->name,
+- (unsigned long)t->tv_set.tv_sec,
++ (unsigned long)t->tv_set.tv_jiff,
+ (unsigned long)t->tv_set.tv_usec,
+- (unsigned long)t->tv_expires.tv_sec,
++ (unsigned long)t->tv_expires.tv_jiff,
+ (unsigned long)t->tv_expires.tv_usec,
+ t->delay_us,
+ t->data
+ /* , t->function */
+ );
+- local_irq_disable();
++ local_irq_save(flags);
+ if (t->next != nextt)
+ {
+ printk("timer removed!\n");
+@@ -822,7 +722,7 @@
+ static struct fast_timer tr[10];
+ static int exp_num[10];
+
+-static struct timeval tv_exp[100];
++static struct fasttime_t tv_exp[100];
+
+ static void test_timeout(unsigned long data)
+ {
+@@ -860,7 +760,7 @@
+ int prev_num;
+ int j;
+
+- struct timeval tv, tv0, tv1, tv2;
++ struct fasttime_t tv, tv0, tv1, tv2;
+
+ printk("fast_timer_test() start\n");
+ do_gettimeofday_fast(&tv);
+@@ -873,7 +773,7 @@
+ {
+ do_gettimeofday_fast(&tv_exp[j]);
+ }
+- printk("fast_timer_test() %is %06i\n", tv.tv_sec, tv.tv_usec);
++ printk("fast_timer_test() %is %06i\n", tv.tv_jiff, tv.tv_usec);
+
+ for (j = 0; j < 1000; j++)
+ {
+@@ -883,11 +783,11 @@
+ for (j = 0; j < 100; j++)
+ {
+ printk("%i.%i %i.%i %i.%i %i.%i %i.%i\n",
+- tv_exp[j].tv_sec,tv_exp[j].tv_usec,
+- tv_exp[j+1].tv_sec,tv_exp[j+1].tv_usec,
+- tv_exp[j+2].tv_sec,tv_exp[j+2].tv_usec,
+- tv_exp[j+3].tv_sec,tv_exp[j+3].tv_usec,
+- tv_exp[j+4].tv_sec,tv_exp[j+4].tv_usec);
++ tv_exp[j].tv_jiff,tv_exp[j].tv_usec,
++ tv_exp[j+1].tv_jiff,tv_exp[j+1].tv_usec,
++ tv_exp[j+2].tv_jiff,tv_exp[j+2].tv_usec,
++ tv_exp[j+3].tv_jiff,tv_exp[j+3].tv_usec,
++ tv_exp[j+4].tv_jiff,tv_exp[j+4].tv_usec);
+ j += 4;
+ }
+ do_gettimeofday_fast(&tv0);
+@@ -919,9 +819,9 @@
+ }
+ }
+ do_gettimeofday_fast(&tv2);
+- printk("Timers started %is %06i\n", tv0.tv_sec, tv0.tv_usec);
+- printk("Timers started at %is %06i\n", tv1.tv_sec, tv1.tv_usec);
+- printk("Timers done %is %06i\n", tv2.tv_sec, tv2.tv_usec);
++ printk("Timers started %is %06i\n", tv0.tv_jiff, tv0.tv_usec);
++ printk("Timers started at %is %06i\n", tv1.tv_jiff, tv1.tv_usec);
++ printk("Timers done %is %06i\n", tv2.tv_jiff, tv2.tv_usec);
+ DP(printk("buf0:\n");
+ printk(buf0);
+ printk("buf1:\n");
+@@ -943,9 +843,9 @@
+ printk("%-10s set: %6is %06ius exp: %6is %06ius "
+ "data: 0x%08X func: 0x%08X\n",
+ t->name,
+- t->tv_set.tv_sec,
++ t->tv_set.tv_jiff,
+ t->tv_set.tv_usec,
+- t->tv_expires.tv_sec,
++ t->tv_expires.tv_jiff,
+ t->tv_expires.tv_usec,
+ t->data,
+ t->function
+@@ -953,10 +853,10 @@
+
+ printk(" del: %6ius did exp: %6is %06ius as #%i error: %6li\n",
+ t->delay_us,
+- tv_exp[j].tv_sec,
++ tv_exp[j].tv_jiff,
+ tv_exp[j].tv_usec,
+ exp_num[j],
+- (tv_exp[j].tv_sec - t->tv_expires.tv_sec)*1000000 + tv_exp[j].tv_usec - t->tv_expires.tv_usec);
++ (tv_exp[j].tv_jiff - t->tv_expires.tv_jiff)*1000000 + tv_exp[j].tv_usec - t->tv_expires.tv_usec);
+ }
+ proc_fasttimer_read(buf5, NULL, 0, 0, 0);
+ printk("buf5 after all done:\n");
+@@ -966,7 +866,7 @@
+ #endif
+
+
+-void fast_timer_init(void)
++int fast_timer_init(void)
+ {
+ /* For some reason, request_irq() hangs when called froom time_init() */
+ if (!fast_timer_is_init)
+@@ -981,10 +881,10 @@
+ proc_register_dynamic(&proc_root, &fasttimer_proc_entry);
+ #endif
+ #endif /* PROC_FS */
+- if(request_irq(TIMER_INTR_VECT, timer_trig_interrupt, IRQF_DISABLED,
+- "fast timer int", NULL))
++ if(request_irq(TIMER_INTR_VECT, timer_trig_interrupt, SA_SHIRQ | SA_INTERRUPT,
++ "fast timer int", &fast_timer_list))
+ {
+- printk("err: timer1 irq\n");
++ printk("err: fasttimer irq\n");
+ }
+ fast_timer_is_init = 1;
+ #ifdef FAST_TIMER_TEST
+@@ -992,4 +892,6 @@
+ fast_timer_test();
+ #endif
+ }
++ return 0;
+ }
++__initcall(fast_timer_init);
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/head.S linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/head.S
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/head.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/head.S 2007-01-09 10:29:19.000000000 +0100
+@@ -4,7 +4,6 @@
+ * Copyright (C) 2003, Axis Communications AB
+ */
+
+-
+ #define ASSEMBLER_MACROS_ONLY
+
+ /*
+@@ -12,14 +11,21 @@
+ * -traditional must not be used when assembling this file.
+ */
+ #include <asm/arch/hwregs/reg_rdwr.h>
++#include <asm/arch/memmap.h>
++#include <asm/arch/hwregs/intr_vect.h>
+ #include <asm/arch/hwregs/asm/mmu_defs_asm.h>
+ #include <asm/arch/hwregs/asm/reg_map_asm.h>
+ #include <asm/arch/hwregs/asm/config_defs_asm.h>
+ #include <asm/arch/hwregs/asm/bif_core_defs_asm.h>
+-
++#include <asm/arch/hwregs/asm/pinmux_defs_asm.h>
++#include <asm/arch/hwregs/asm/gio_defs_asm.h>
++
+ #define CRAMFS_MAGIC 0x28cd3d45
++#define JHEAD_MAGIC 0x1FF528A6
++#define JHEAD_SIZE 8
+ #define RAM_INIT_MAGIC 0x56902387
+-#define COMMAND_LINE_MAGIC 0x87109563
++#define COMMAND_LINE_MAGIC 0x87109563
++#define NAND_BOOT_MAGIC 0x9a9db001
+
+ ;; NOTE: R8 and R9 carry information from the decompressor (if the
+ ;; kernel was compressed). They must not be used in the code below
+@@ -30,11 +36,10 @@
+ .global romfs_start
+ .global romfs_length
+ .global romfs_in_flash
++ .global nand_boot
+ .global swapper_pg_dir
+- .global crisv32_nand_boot
+- .global crisv32_nand_cramfs_offset
+
+- ;; Dummy section to make it bootable with current VCS simulator
++ ;; Dummy section to make it bootable with current VCS simulator
+ #ifdef CONFIG_ETRAXFS_SIM
+ .section ".boot", "ax"
+ ba tstart
+@@ -42,13 +47,13 @@
+ #endif
+
+ .text
+-tstart:
++tstart:
+ ;; This is the entry point of the kernel. The CPU is currently in
+ ;; supervisor mode.
+- ;;
++ ;;
+ ;; 0x00000000 if flash.
+ ;; 0x40004000 if DRAM.
+- ;;
++ ;;
+ di
+
+ ;; Start clocks for used blocks.
+@@ -72,20 +77,25 @@
+ move.d REG_ADDR(bif_core, regi_bif_core, rw_grp4_cfg), $r0
+ move.d CONFIG_ETRAX_MEM_GRP4_CONFIG, $r1
+ move.d $r1, [$r0]
+-
+-#ifdef CONFIG_ETRAXFS_SIM
++
++#ifdef CONFIG_ETRAXFS_SIM
+ ;; Set up minimal flash waitstates
+ move.d 0, $r10
+ move.d REG_ADDR(bif_core, regi_bif_core, rw_grp1_cfg), $r11
+ move.d $r10, [$r11]
+-#endif
++#endif
+
++#ifdef CONFIG_SMP
++secondary_cpu_entry: /* Entry point for secondary CPUs */
++ di
++#endif
++
+ ;; Setup and enable the MMU. Use same configuration for both the data
+ ;; and the instruction MMU.
+ ;;
+ ;; Note; 3 cycles is needed for a bank-select to take effect. Further;
+ ;; bank 1 is the instruction MMU, bank 2 is the data MMU.
+-#ifndef CONFIG_ETRAXFS_SIM
++#ifndef CONFIG_ETRAXFS_SIM
+ move.d REG_FIELD(mmu, rw_mm_kbase_hi, base_e, 8) \
+ | REG_FIELD(mmu, rw_mm_kbase_hi, base_c, 4) \
+ | REG_FIELD(mmu, rw_mm_kbase_hi, base_b, 0xb), $r0
+@@ -96,7 +106,7 @@
+ | REG_FIELD(mmu, rw_mm_kbase_hi, base_c, 0) \
+ | REG_FIELD(mmu, rw_mm_kbase_hi, base_b, 0xb) \
+ | REG_FIELD(mmu, rw_mm_kbase_hi, base_a, 0xa), $r0
+-#endif
++#endif
+
+ ;; Temporary map of 0x40 -> 0x40 and 0x00 -> 0x00.
+ move.d REG_FIELD(mmu, rw_mm_kbase_lo, base_4, 4) \
+@@ -146,8 +156,8 @@
+ | REG_STATE(mmu, rw_mm_cfg, seg_2, page) \
+ | REG_STATE(mmu, rw_mm_cfg, seg_1, page) \
+ | REG_STATE(mmu, rw_mm_cfg, seg_0, linear), $r2
+-#endif
+-
++#endif
++
+ ;; Update instruction MMU.
+ move 1, $srs
+ nop
+@@ -165,7 +175,7 @@
+ move $r0, $s2 ; kbase_hi.
+ move $r1, $s1 ; kbase_lo
+ move $r2, $s0 ; mm_cfg, virtual memory configuration.
+-
++
+ ;; Enable data and instruction MMU.
+ move 0, $srs
+ moveq 0xf, $r0 ; IMMU, DMMU, DCache, Icache on
+@@ -183,17 +193,11 @@
+ nop
+ nop
+ nop
+- move $s10, $r0
++ move $s12, $r0
+ cmpq 0, $r0
+ beq master_cpu
+ nop
+ slave_cpu:
+- ; A slave waits for cpu_now_booting to be equal to CPU ID.
+- move.d cpu_now_booting, $r1
+-slave_wait:
+- cmp.d [$r1], $r0
+- bne slave_wait
+- nop
+ ; Time to boot-up. Get stack location provided by master CPU.
+ move.d smp_init_current_idle_thread, $r1
+ move.d [$r1], $sp
+@@ -203,9 +207,16 @@
+ jsr smp_callin
+ nop
+ master_cpu:
+-#endif
++ /* Set up entry point for secondary CPUs. The boot ROM has set up
++ * EBP at start of internal memory. The CPU will get there
++ * later when we issue an IPI to them... */
++ move.d MEM_INTMEM_START + IPI_INTR_VECT * 4, $r0
++ move.d secondary_cpu_entry, $r1
++ move.d $r1, [$r0]
++#endif
+ #ifndef CONFIG_ETRAXFS_SIM
+- ;; Check if starting from DRAM or flash.
++ ; Check if starting from DRAM (network->RAM boot or unpacked
++ ; compressed kernel), or directly from flash.
+ lapcq ., $r0
+ and.d 0x7fffffff, $r0 ; Mask off the non-cache bit.
+ cmp.d 0x10000, $r0 ; Arbitrary, something above this code.
+@@ -238,6 +249,7 @@
+ ;; Copy the text and data section to DRAM. This depends on that the
+ ;; variables used below are correctly set up by the linker script.
+ ;; The calculated value stored in R4 is used below.
++ ;; Leave the cramfs file system (piggybacked after the kernel) in flash.
+ moveq 0, $r0 ; Source.
+ move.d text_start, $r1 ; Destination.
+ move.d __vmlinux_end, $r2
+@@ -249,7 +261,7 @@
+ blo 1b
+ nop
+
+- ;; Keep CRAMFS in flash.
++ ;; Check for cramfs.
+ moveq 0, $r0
+ move.d romfs_length, $r1
+ move.d $r0, [$r1]
+@@ -257,7 +269,8 @@
+ cmp.d CRAMFS_MAGIC, $r0
+ bne 1f
+ nop
+-
++
++ ;; Set length and start of cramfs, set romfs_in_flash flag
+ addoq +4, $r4, $acr
+ move.d [$acr], $r0
+ move.d romfs_length, $r1
+@@ -273,35 +286,32 @@
+ nop
+
+ _inram:
+- ;; Check if booting from NAND flash (in that case we just remember the offset
+- ;; into the flash where cramfs should be).
+- move.d REG_ADDR(config, regi_config, r_bootsel), $r0
+- move.d [$r0], $r0
+- and.d REG_MASK(config, r_bootsel, boot_mode), $r0
+- cmp.d REG_STATE(config, r_bootsel, boot_mode, nand), $r0
+- bne move_cramfs
+- moveq 1,$r0
+- move.d crisv32_nand_boot, $r1
+- move.d $r0, [$r1]
+- move.d crisv32_nand_cramfs_offset, $r1
+- move.d $r9, [$r1]
++ ;; Check if booting from NAND flash; if so, set appropriate flags
++ ;; and move on.
++ cmp.d NAND_BOOT_MAGIC, $r12
++ bne move_cramfs ; not nand, jump
+ moveq 1, $r0
+- move.d romfs_in_flash, $r1
++ move.d nand_boot, $r1 ; tell axisflashmap we're booting from NAND
++ move.d $r0, [$r1]
++ moveq 0, $r0 ; tell axisflashmap romfs is not in
++ move.d romfs_in_flash, $r1 ; (directly accessed) flash
+ move.d $r0, [$r1]
+- jump _start_it
++ jump _start_it ; continue with boot
+ nop
+
+-move_cramfs:
+- ;; Move the cramfs after BSS.
++move_cramfs:
++ ;; kernel is in DRAM.
++ ;; Must figure out if there is a piggybacked rootfs image or not.
++ ;; Set romfs_length to 0 => no rootfs image available by default.
+ moveq 0, $r0
+ move.d romfs_length, $r1
+ move.d $r0, [$r1]
+
+-#ifndef CONFIG_ETRAXFS_SIM
++#ifndef CONFIG_ETRAXFS_SIM
+ ;; The kernel could have been unpacked to DRAM by the loader, but
+- ;; the cramfs image could still be inte the flash immediately
+- ;; following the compressed kernel image. The loaded passes the address
+- ;; of the bute succeeding the last compressed byte in the flash in
++ ;; the cramfs image could still be in the flash immediately
++ ;; following the compressed kernel image. The loader passes the address
++ ;; of the byte succeeding the last compressed byte in the flash in
+ ;; register R9 when starting the kernel.
+ cmp.d 0x0ffffff8, $r9
+ bhs _no_romfs_in_flash ; R9 points outside the flash area.
+@@ -309,12 +319,14 @@
+ #else
+ ba _no_romfs_in_flash
+ nop
+-#endif
++#endif
++ ;; cramfs rootfs might to be in flash. Check for it.
+ move.d [$r9], $r0 ; cramfs_super.magic
+ cmp.d CRAMFS_MAGIC, $r0
+ bne _no_romfs_in_flash
+ nop
+
++ ;; found cramfs in flash. set address and size, and romfs_in_flash flag.
+ addoq +4, $r9, $acr
+ move.d [$acr], $r0
+ move.d romfs_length, $r1
+@@ -330,29 +342,45 @@
+ nop
+
+ _no_romfs_in_flash:
+- ;; Look for cramfs.
+-#ifndef CONFIG_ETRAXFS_SIM
++ ;; No romfs in flash, so look for cramfs, or jffs2 with jhead,
++ ;; after kernel in RAM, as is the case with network->RAM boot.
++ ;; For cramfs, partition starts with magic and length.
++ ;; For jffs2, a jhead is prepended which contains with magic and length.
++ ;; The jhead is not part of the jffs2 partition however.
++#ifndef CONFIG_ETRAXFS_SIM
+ move.d __vmlinux_end, $r0
+ #else
+- move.d __end, $r0
+-#endif
++ move.d __end, $r0
++#endif
+ move.d [$r0], $r1
+- cmp.d CRAMFS_MAGIC, $r1
+- bne 2f
++ cmp.d CRAMFS_MAGIC, $r1 ; cramfs magic?
++ beq 2f ; yes, jump
++ nop
++ cmp.d JHEAD_MAGIC, $r1 ; jffs2 (jhead) magic?
++ bne 4f ; no, skip copy
++ nop
++ addq 4, $r0 ; location of jffs2 size
++ move.d [$r0+], $r2 ; fetch jffs2 size -> r2
++ ; r0 now points to start of jffs2
++ ba 3f
+ nop
++2:
++ addoq +4, $r0, $acr ; location of cramfs size
++ move.d [$acr], $r2 ; fetch cramfs size -> r2
++ ; r0 still points to start of cramfs
++3:
++ ;; Now, move the root fs to after kernel's BSS
+
+- addoq +4, $r0, $acr
+- move.d [$acr], $r2
+- move.d _end, $r1
++ move.d _end, $r1 ; start of cramfs -> r1
+ move.d romfs_start, $r3
+- move.d $r1, [$r3]
++ move.d $r1, [$r3] ; store at romfs_start (for axisflashmap)
+ move.d romfs_length, $r3
+- move.d $r2, [$r3]
++ move.d $r2, [$r3] ; store size at romfs_length
+
+-#ifndef CONFIG_ETRAXFS_SIM
+- add.d $r2, $r0
++#ifndef CONFIG_ETRAXFS_SIM
++ add.d $r2, $r0 ; copy from end and downwards
+ add.d $r2, $r1
+-
++
+ lsrq 1, $r2 ; Size is in bytes, we copy words.
+ addq 1, $r2
+ 1:
+@@ -364,17 +392,24 @@
+ bne 1b
+ nop
+ #endif
+-
+-2:
++
++4:
++ ;; BSS move done.
++ ;; Clear romfs_in_flash flag, as we now know romfs is in DRAM
++ ;; Also clear nand_boot flag; if we got here, we know we've not
++ ;; booted from NAND flash.
+ moveq 0, $r0
+ move.d romfs_in_flash, $r1
+ move.d $r0, [$r1]
++ moveq 0, $r0
++ move.d nand_boot, $r1
++ move.d $r0, [$r1]
+
+ jump _start_it ; Jump to cached code.
+ nop
+-
++
+ _start_it:
+-
++
+ ;; Check if kernel command line is supplied
+ cmp.d COMMAND_LINE_MAGIC, $r10
+ bne no_command_line
+@@ -383,9 +418,9 @@
+ move.d 256, $r13
+ move.d cris_command_line, $r10
+ or.d 0x80000000, $r11 ; Make it virtual
+-1:
+- move.b [$r11+], $r12
+- move.b $r12, [$r10+]
++1:
++ move.b [$r11+], $r1
++ move.b $r1, [$r10+]
+ subq 1, $r13
+ bne 1b
+ nop
+@@ -401,7 +436,7 @@
+ move.d etrax_irv, $r1 ; Set the exception base register and pointer.
+ move.d $r0, [$r1]
+
+-#ifndef CONFIG_ETRAXFS_SIM
++#ifndef CONFIG_ETRAXFS_SIM
+ ;; Clear the BSS region from _bss_start to _end.
+ move.d __bss_start, $r0
+ move.d _end, $r1
+@@ -429,17 +464,31 @@
+ .data
+ etrax_irv:
+ .dword 0
++
++; Variables for communication with the Axis flash map driver (axisflashmap),
++; and for setting up memory in arch/cris/kernel/setup.c .
++
++; romfs_start is set to the start of the root file system, if it exists
++; in directly accessible memory (i.e. NOR Flash when booting from Flash,
++; or RAM when booting directly from a network-downloaded RAM image)
+ romfs_start:
+ .dword 0
++
++; romfs_length is set to the size of the root file system image, if it exists
++; in directly accessible memory (see romfs_start). Otherwise it is set to 0.
+ romfs_length:
+ .dword 0
++
++; romfs_in_flash is set to 1 if the root file system resides in directly
++; accessible flash memory (i.e. NOR flash). It is set to 0 for RAM boot
++; or NAND flash boot.
+ romfs_in_flash:
+ .dword 0
+-crisv32_nand_boot:
+- .dword 0
+-crisv32_nand_cramfs_offset:
+- .dword 0
+
++; nand_boot is set to 1 when the kernel has been booted from NAND flash
++nand_boot:
++ .dword 0
++
+ swapper_pg_dir = 0xc0002000
+
+ .section ".init.data", "aw"
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/io.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/io.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/io.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/io.c 2006-11-21 00:04:55.000000000 +0100
+@@ -1,7 +1,7 @@
+-/*
++/*
+ * Helper functions for I/O pins.
+ *
+- * Copyright (c) 2004 Axis Communications AB.
++ * Copyright (c) 2004, 2006 Axis Communications AB.
+ */
+
+ #include <linux/types.h>
+@@ -15,6 +15,10 @@
+ #include <asm/arch/pinmux.h>
+ #include <asm/arch/hwregs/gio_defs.h>
+
++#ifndef DEBUG
++#define DEBUG(x)
++#endif
++
+ struct crisv32_ioport crisv32_ioports[] =
+ {
+ {
+@@ -46,13 +50,15 @@
+ (unsigned long*)REG_ADDR(gio, regi_gio, rw_pe_dout),
+ (unsigned long*)REG_ADDR(gio, regi_gio, r_pe_din),
+ 18
+- }
++ }
+ };
+
+ #define NBR_OF_PORTS sizeof(crisv32_ioports)/sizeof(struct crisv32_ioport)
+
+-struct crisv32_iopin crisv32_led1_green;
+-struct crisv32_iopin crisv32_led1_red;
++struct crisv32_iopin crisv32_led_net0_green;
++struct crisv32_iopin crisv32_led_net0_red;
++struct crisv32_iopin crisv32_led_net1_green;
++struct crisv32_iopin crisv32_led_net1_red;
+ struct crisv32_iopin crisv32_led2_green;
+ struct crisv32_iopin crisv32_led2_red;
+ struct crisv32_iopin crisv32_led3_green;
+@@ -76,34 +82,54 @@
+ static int __init crisv32_io_init(void)
+ {
+ int ret = 0;
++
++ u32 i;
++
++ /* Locks *should* be dynamically initialized. */
++ for (i = 0; i < ARRAY_SIZE(crisv32_ioports); i++)
++ spin_lock_init (&crisv32_ioports[i].lock);
++ spin_lock_init (&dummy_port.lock);
++
+ /* Initialize LEDs */
+- ret += crisv32_io_get_name(&crisv32_led1_green, CONFIG_ETRAX_LED1G);
+- ret += crisv32_io_get_name(&crisv32_led1_red, CONFIG_ETRAX_LED1R);
++#if (defined(CONFIG_ETRAX_NBR_LED_GRP_ONE) || defined(CONFIG_ETRAX_NBR_LED_GRP_TWO))
++ ret += crisv32_io_get_name(&crisv32_led_net0_green, CONFIG_ETRAX_LED_G_NET0);
++ crisv32_io_set_dir(&crisv32_led_net0_green, crisv32_io_dir_out);
++ if (strcmp(CONFIG_ETRAX_LED_G_NET0, CONFIG_ETRAX_LED_R_NET0)) {
++ ret += crisv32_io_get_name(&crisv32_led_net0_red, CONFIG_ETRAX_LED_R_NET0);
++ crisv32_io_set_dir(&crisv32_led_net0_red, crisv32_io_dir_out);
++ } else
++ crisv32_led_net0_red = dummy_led;
++#endif
++
++#ifdef CONFIG_ETRAX_NBR_LED_GRP_TWO
++ ret += crisv32_io_get_name(&crisv32_led_net1_green, CONFIG_ETRAX_LED_G_NET1);
++ crisv32_io_set_dir(&crisv32_led_net1_green, crisv32_io_dir_out);
++ if (strcmp(CONFIG_ETRAX_LED_G_NET1, CONFIG_ETRAX_LED_R_NET1)) {
++ crisv32_io_get_name(&crisv32_led_net1_red, CONFIG_ETRAX_LED_R_NET1);
++ crisv32_io_set_dir(&crisv32_led_net1_red, crisv32_io_dir_out);
++ } else
++ crisv32_led_net1_red = dummy_led;
++#endif
++
+ ret += crisv32_io_get_name(&crisv32_led2_green, CONFIG_ETRAX_LED2G);
+ ret += crisv32_io_get_name(&crisv32_led2_red, CONFIG_ETRAX_LED2R);
+ ret += crisv32_io_get_name(&crisv32_led3_green, CONFIG_ETRAX_LED3G);
+ ret += crisv32_io_get_name(&crisv32_led3_red, CONFIG_ETRAX_LED3R);
+- crisv32_io_set_dir(&crisv32_led1_green, crisv32_io_dir_out);
+- crisv32_io_set_dir(&crisv32_led1_red, crisv32_io_dir_out);
++
+ crisv32_io_set_dir(&crisv32_led2_green, crisv32_io_dir_out);
+ crisv32_io_set_dir(&crisv32_led2_red, crisv32_io_dir_out);
+ crisv32_io_set_dir(&crisv32_led3_green, crisv32_io_dir_out);
+ crisv32_io_set_dir(&crisv32_led3_red, crisv32_io_dir_out);
+
+- if (!strcmp(CONFIG_ETRAX_LED1G, CONFIG_ETRAX_LED1R))
+- crisv32_led1_red = dummy_led;
+- if (!strcmp(CONFIG_ETRAX_LED2G, CONFIG_ETRAX_LED2R))
+- crisv32_led2_red = dummy_led;
+-
+ return ret;
+ }
+
+ __initcall(crisv32_io_init);
+
+-int crisv32_io_get(struct crisv32_iopin* iopin,
++int crisv32_io_get(struct crisv32_iopin* iopin,
+ unsigned int port, unsigned int pin)
+ {
+- if (port > NBR_OF_PORTS)
++ if (port > NBR_OF_PORTS)
+ return -EINVAL;
+ if (port > crisv32_ioports[port].pin_count)
+ return -EINVAL;
+@@ -111,14 +137,17 @@
+ iopin->bit = 1 << pin;
+ iopin->port = &crisv32_ioports[port];
+
+- if (crisv32_pinmux_alloc(port, pin, pin, pinmux_gpio))
++ /* Only allocate pinmux gpiopins if port != PORT_A (port 0) */
++ /* NOTE! crisv32_pinmux_alloc thinks PORT_B is port 0 */
++ if (port != 0 && crisv32_pinmux_alloc(port-1, pin, pin, pinmux_gpio))
+ return -EIO;
+-
++ DEBUG(printk("crisv32_io_get: Allocated pin %d on port %d\n", pin, port ));
++
+ return 0;
+ }
+
+ int crisv32_io_get_name(struct crisv32_iopin* iopin,
+- char* name)
++ const char* name)
+ {
+ int port;
+ int pin;
+@@ -128,7 +157,7 @@
+
+ if (toupper(*name) < 'A' || toupper(*name) > 'E')
+ return -EINVAL;
+-
++
+ port = toupper(*name) - 'A';
+ name++;
+ pin = simple_strtoul(name, NULL, 10);
+@@ -139,9 +168,12 @@
+ iopin->bit = 1 << pin;
+ iopin->port = &crisv32_ioports[port];
+
+- if (crisv32_pinmux_alloc(port, pin, pin, pinmux_gpio))
++ /* Only allocate pinmux gpiopins if port != PORT_A (port 0) */
++ /* NOTE! crisv32_pinmux_alloc thinks PORT_B is port 0 */
++ if (port != 0 && crisv32_pinmux_alloc(port-1, pin, pin, pinmux_gpio))
+ return -EIO;
+
++ DEBUG(printk("crisv32_io_get_name: Allocated pin %d on port %d\n", pin, port));
+ return 0;
+ }
+
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/irq.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/irq.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/irq.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/irq.c 2006-10-13 14:43:13.000000000 +0200
+@@ -44,10 +44,10 @@
+ cpumask_t mask; /* The CPUs to which the IRQ may be allocated. */
+ };
+
+-struct cris_irq_allocation irq_allocations[NR_IRQS] =
++struct cris_irq_allocation irq_allocations[NR_IRQS] =
+ {[0 ... NR_IRQS - 1] = {0, CPU_MASK_ALL}};
+
+-static unsigned long irq_regs[NR_CPUS] =
++static unsigned long irq_regs[NR_CPUS] =
+ {
+ regi_irq,
+ #ifdef CONFIG_SMP
+@@ -79,9 +79,9 @@
+ extern void kgdb_init(void);
+ extern void breakpoint(void);
+
+-/*
+- * Build the IRQ handler stubs using macros from irq.h. First argument is the
+- * IRQ number, the second argument is the corresponding bit in
++/*
++ * Build the IRQ handler stubs using macros from irq.h. First argument is the
++ * IRQ number, the second argument is the corresponding bit in
+ * intr_rw_vect_mask found in asm/arch/hwregs/intr_vect_defs.h.
+ */
+ BUILD_IRQ(0x31, (1 << 0)) /* memarb */
+@@ -139,7 +139,7 @@
+
+ spin_lock_irqsave(&irq_lock, flags);
+ intr_mask = REG_RD_INT(intr_vect, irq_regs[cpu], rw_mask);
+-
++
+ /* Remember; 1 let thru, 0 block. */
+ intr_mask &= ~(1 << (irq - FIRST_IRQ));
+
+@@ -152,10 +152,10 @@
+ {
+ int intr_mask;
+ unsigned long flags;
+-
++
+ spin_lock_irqsave(&irq_lock, flags);
+ intr_mask = REG_RD_INT(intr_vect, irq_regs[cpu], rw_mask);
+-
++
+ /* Remember; 1 let thru, 0 block. */
+ intr_mask |= (1 << (irq - FIRST_IRQ));
+
+@@ -168,7 +168,7 @@
+ {
+ int cpu;
+ unsigned long flags;
+-
++
+ spin_lock_irqsave(&irq_lock, flags);
+ cpu = irq_allocations[irq - FIRST_IRQ].cpu;
+
+@@ -178,12 +178,12 @@
+ spin_unlock_irqrestore(&irq_lock, flags);
+ return smp_processor_id();
+ }
+-
++
+
+ /* Let the interrupt stay if possible */
+ if (cpu_isset(cpu, irq_allocations[irq - FIRST_IRQ].mask))
+ goto out;
+-
++
+ /* IRQ must be moved to another CPU. */
+ cpu = first_cpu(irq_allocations[irq - FIRST_IRQ].mask);
+ irq_allocations[irq - FIRST_IRQ].cpu = cpu;
+@@ -287,7 +287,7 @@
+ * interrupt from the CPU and software has to sort out which
+ * interrupts that happened. There are two special cases here:
+ *
+- * 1. Timer interrupts may never be blocked because of the
++ * 1. Timer interrupts may never be blocked because of the
+ * watchdog (refer to comment in include/asr/arch/irq.h)
+ * 2. GDB serial port IRQs are unhandled here and will be handled
+ * as a single IRQ when it strikes again because the GDB
+@@ -304,33 +304,33 @@
+ cpu = smp_processor_id();
+
+ /* An extra irq_enter here to prevent softIRQs to run after
+- * each do_IRQ. This will decrease the interrupt latency.
++ * each do_IRQ. This will decrease the interrupt latency.
+ */
+ irq_enter();
+
+ /* Get which IRQs that happend. */
+ masked = REG_RD_INT(intr_vect, irq_regs[cpu], r_masked_vect);
+-
++
+ /* Calculate new IRQ mask with these IRQs disabled. */
+ mask = REG_RD_INT(intr_vect, irq_regs[cpu], rw_mask);
+ mask &= ~masked;
+
+ /* Timer IRQ is never masked */
+ if (masked & TIMER_MASK)
+- mask |= TIMER_MASK;
++ mask |= TIMER_MASK;
+
+ /* Block all the IRQs */
+ REG_WR_INT(intr_vect, irq_regs[cpu], rw_mask, mask);
+-
++
+ /* Check for timer IRQ and handle it special. */
+ if (masked & TIMER_MASK) {
+ masked &= ~TIMER_MASK;
+- do_IRQ(TIMER_INTR_VECT, regs);
++ do_IRQ(TIMER_INTR_VECT, regs);
+ }
+
+ #ifdef IGNORE_MASK
+ /* Remove IRQs that can't be handled as multiple. */
+- masked &= ~IGNORE_MASK;
++ masked &= ~IGNORE_MASK;
+ #endif
+
+ /* Handle the rest of the IRQs. */
+@@ -377,7 +377,7 @@
+ irq_desc[TIMER_INTR_VECT].status |= IRQ_PER_CPU;
+ irq_allocations[IPI_INTR_VECT - FIRST_IRQ].cpu = CPU_FIXED;
+ irq_desc[IPI_INTR_VECT].status |= IRQ_PER_CPU;
+-
++
+ set_exception_vector(0x00, nmi_interrupt);
+ set_exception_vector(0x30, multiple_interrupt);
+
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/kgdb.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/kgdb.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/kgdb.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/kgdb.c 2005-07-06 11:40:49.000000000 +0200
+@@ -25,7 +25,7 @@
+ * kgdb usage notes:
+ * -----------------
+ *
+- * If you select CONFIG_ETRAX_KGDB in the configuration, the kernel will be
++ * If you select CONFIG_ETRAX_KGDB in the configuration, the kernel will be
+ * built with different gcc flags: "-g" is added to get debug infos, and
+ * "-fomit-frame-pointer" is omitted to make debugging easier. Since the
+ * resulting kernel will be quite big (approx. > 7 MB), it will be stripped
+@@ -118,7 +118,7 @@
+ * call to kgdb_init() is necessary in order to allow any breakpoints
+ * or error conditions to be properly intercepted and reported to gdb.
+ * Two, a breakpoint needs to be generated to begin communication. This
+- * is most easily accomplished by a call to breakpoint().
++ * is most easily accomplished by a call to breakpoint().
+ *
+ * The following gdb commands are supported:
+ *
+@@ -382,8 +382,8 @@
+ int getDebugChar(void);
+
+ #ifdef CONFIG_ETRAXFS_SIM
+-int getDebugChar(void)
+-{
++int getDebugChar(void)
++{
+ return socketread();
+ }
+ #endif
+@@ -490,7 +490,7 @@
+
+ /********************************** Breakpoint *******************************/
+ /* Use an internal stack in the breakpoint and interrupt response routines.
+- FIXME: How do we know the size of this stack is enough?
++ FIXME: How do we know the size of this stack is enough?
+ Global so it can be reached from assembler code. */
+ #define INTERNAL_STACK_SIZE 1024
+ char internal_stack[INTERNAL_STACK_SIZE];
+@@ -511,7 +511,7 @@
+ gdb_cris_strcpy(char *s1, const char *s2)
+ {
+ char *s = s1;
+-
++
+ for (s = s1; (*s++ = *s2++) != '\0'; )
+ ;
+ return s1;
+@@ -522,7 +522,7 @@
+ gdb_cris_strlen(const char *s)
+ {
+ const char *sc;
+-
++
+ for (sc = s; *sc != '\0'; sc++)
+ ;
+ return (sc - s);
+@@ -534,7 +534,7 @@
+ {
+ const unsigned char uc = c;
+ const unsigned char *su;
+-
++
+ for (su = s; 0 < n; ++su, --n)
+ if (*su == uc)
+ return (void *)su;
+@@ -549,15 +549,15 @@
+ char *s1;
+ char *sd;
+ int x = 0;
+-
++
+ for (s1 = (char*)s; (sd = gdb_cris_memchr(hexchars, *s1, base)) != NULL; ++s1)
+ x = x * base + (sd - hexchars);
+-
++
+ if (endptr) {
+ /* Unconverted suffix is stored in endptr unless endptr is NULL. */
+ *endptr = s1;
+ }
+-
++
+ return x;
+ }
+
+@@ -629,7 +629,7 @@
+ } else if (regno == PID) {
+ /* 32-bit register. */
+ *valptr = *(unsigned int *)((char *)&reg.pid);
+-
++
+ } else if (regno == SRS) {
+ /* 8-bit register. */
+ *valptr = (unsigned int)(*(unsigned char *)((char *)&reg.srs));
+@@ -726,7 +726,7 @@
+ *buf++ = highhex (ch);
+ *buf++ = lowhex (ch);
+ }
+-
++
+ /* Terminate properly. */
+ *buf = '\0';
+ return buf;
+@@ -804,7 +804,7 @@
+ continue;
+
+ buffer[count] = 0;
+-
++
+ if (ch == '#') {
+ xmitcsum = hex(getDebugChar()) << 4;
+ xmitcsum += hex(getDebugChar());
+@@ -836,7 +836,7 @@
+ int checksum;
+ int runlen;
+ int encode;
+-
++
+ do {
+ char *src = buffer;
+ putDebugChar('$');
+@@ -905,42 +905,42 @@
+ {
+ char *ptr = output_buffer;
+ unsigned int reg_cont;
+-
++
+ /* Send trap type (converted to signal) */
+
+- *ptr++ = 'T';
++ *ptr++ = 'T';
+ *ptr++ = highhex(sigval);
+ *ptr++ = lowhex(sigval);
+
+ if (((reg.exs & 0xff00) >> 8) == 0xc) {
+-
++
+ /* Some kind of hardware watchpoint triggered. Find which one
+ and determine its type (read/write/access). */
+ int S, bp, trig_bits = 0, rw_bits = 0;
+ int trig_mask = 0;
+ unsigned int *bp_d_regs = &sreg.s3_3;
+ /* In a lot of cases, the stopped data address will simply be EDA.
+- In some cases, we adjust it to match the watched data range.
++ In some cases, we adjust it to match the watched data range.
+ (We don't want to change the actual EDA though). */
+ unsigned int stopped_data_address;
+ /* The S field of EXS. */
+ S = (reg.exs & 0xffff0000) >> 16;
+-
++
+ if (S & 1) {
+ /* Instruction watchpoint. */
+ /* FIXME: Check against, and possibly adjust reported EDA. */
+ } else {
+ /* Data watchpoint. Find the one that triggered. */
+ for (bp = 0; bp < 6; bp++) {
+-
++
+ /* Dx_RD, Dx_WR in the S field of EXS for this BP. */
+ int bitpos_trig = 1 + bp * 2;
+ /* Dx_BPRD, Dx_BPWR in BP_CTRL for this BP. */
+ int bitpos_config = 2 + bp * 4;
+-
++
+ /* Get read/write trig bits for this BP. */
+ trig_bits = (S & (3 << bitpos_trig)) >> bitpos_trig;
+-
++
+ /* Read/write config bits for this BP. */
+ rw_bits = (sreg.s0_3 & (3 << bitpos_config)) >> bitpos_config;
+ if (trig_bits) {
+@@ -949,11 +949,11 @@
+ if ((rw_bits == 0x1 && trig_bits != 0x1) ||
+ (rw_bits == 0x2 && trig_bits != 0x2))
+ panic("Invalid r/w trigging for this BP");
+-
++
+ /* Mark this BP as trigged for future reference. */
+ trig_mask |= (1 << bp);
+-
+- if (reg.eda >= bp_d_regs[bp * 2] &&
++
++ if (reg.eda >= bp_d_regs[bp * 2] &&
+ reg.eda <= bp_d_regs[bp * 2 + 1]) {
+ /* EDA withing range for this BP; it must be the one
+ we're looking for. */
+@@ -972,7 +972,7 @@
+
+ /* Read/write config bits for this BP (needed later). */
+ rw_bits = (sreg.s0_3 & (3 << bitpos_config)) >> bitpos_config;
+-
++
+ if (trig_mask & (1 << bp)) {
+ /* EDA within 31 bytes of the configured start address? */
+ if (reg.eda + 31 >= bp_d_regs[bp * 2]) {
+@@ -987,12 +987,12 @@
+ }
+ }
+ }
+-
++
+ /* No match yet? */
+ BUG_ON(bp >= 6);
+ /* Note that we report the type according to what the BP is configured
+ for (otherwise we'd never report an 'awatch'), not according to how
+- it trigged. We did check that the trigged bits match what the BP is
++ it trigged. We did check that the trigged bits match what the BP is
+ configured for though. */
+ if (rw_bits == 0x1) {
+ /* read */
+@@ -1110,12 +1110,12 @@
+
+ if (sigval == SIGTRAP) {
+ /* Break 8, single step or hardware breakpoint exception. */
+-
++
+ /* Check IDX field of EXS. */
+ if (((reg.exs & 0xff00) >> 8) == 0x18) {
+
+ /* Break 8. */
+-
++
+ /* Static (compiled) breakpoints must return to the next instruction
+ in order to avoid infinite loops (default value of ERP). Dynamic
+ (gdb-invoked) must subtract the size of the break instruction from
+@@ -1132,7 +1132,7 @@
+ reg.pc -= 2;
+ }
+ }
+-
++
+ } else if (((reg.exs & 0xff00) >> 8) == 0x3) {
+ /* Single step. */
+ /* Don't fiddle with S1. */
+@@ -1190,10 +1190,10 @@
+ unsigned int *bp_d_regs = &sreg.s3_3;
+
+ /* The watchpoint allocation scheme is the simplest possible.
+- For example, if a region is watched for read and
++ For example, if a region is watched for read and
+ a write watch is requested, a new watchpoint will
+ be used. Also, if a watch for a region that is already
+- covered by one or more existing watchpoints, a new
++ covered by one or more existing watchpoints, a new
+ watchpoint will be used. */
+
+ /* First, find a free data watchpoint. */
+@@ -1205,13 +1205,13 @@
+ break;
+ }
+ }
+-
++
+ if (bp > 5) {
+ /* We're out of watchpoints. */
+ gdb_cris_strcpy(output_buffer, error_message[E04]);
+ return;
+ }
+-
++
+ /* Configure the control register first. */
+ if (type == '3' || type == '4') {
+ /* Trigger on read. */
+@@ -1221,11 +1221,11 @@
+ /* Trigger on write. */
+ sreg.s0_3 |= (2 << (2 + bp * 4));
+ }
+-
++
+ /* Ugly pointer arithmetics to configure the watched range. */
+ bp_d_regs[bp * 2] = addr;
+ bp_d_regs[bp * 2 + 1] = (addr + len - 1);
+- }
++ }
+
+ /* Set the S1 flag to enable watchpoints. */
+ reg.ccs |= (1 << (S_CCS_BITNR + CCS_SHIFT));
+@@ -1258,7 +1258,7 @@
+ /* Not in use. */
+ gdb_cris_strcpy(output_buffer, error_message[E04]);
+ return;
+- }
++ }
+ /* Deconfigure. */
+ sreg.s1_3 = 0;
+ sreg.s2_3 = 0;
+@@ -1268,8 +1268,8 @@
+ unsigned int *bp_d_regs = &sreg.s3_3;
+ /* Try to find a watchpoint that is configured for the
+ specified range, then check that read/write also matches. */
+-
+- /* Ugly pointer arithmetic, since I cannot rely on a
++
++ /* Ugly pointer arithmetic, since I cannot rely on a
+ single switch (addr) as there may be several watchpoints with
+ the same start address for example. */
+
+@@ -1279,7 +1279,7 @@
+ /* Matching range. */
+ int bitpos = 2 + bp * 4;
+ int rw_bits;
+-
++
+ /* Read/write bits for this BP. */
+ rw_bits = (sreg.s0_3 & (0x3 << bitpos)) >> bitpos;
+
+@@ -1347,7 +1347,7 @@
+ (char *)&sreg + (reg.srs * 16 * sizeof(unsigned int)),
+ 16 * sizeof(unsigned int));
+ break;
+- }
++ }
+ case 'G':
+ /* Write registers. GXX..XX
+ Each byte of register data is described by two hex digits.
+@@ -1357,11 +1357,11 @@
+ hex2mem((char *)&reg, &input_buffer[1], sizeof(registers));
+ /* Support registers. */
+ hex2mem((char *)&sreg + (reg.srs * 16 * sizeof(unsigned int)),
+- &input_buffer[1] + sizeof(registers),
++ &input_buffer[1] + sizeof(registers),
+ 16 * sizeof(unsigned int));
+ gdb_cris_strcpy(output_buffer, "OK");
+ break;
+-
++
+ case 'P':
+ /* Write register. Pn...=r...
+ Write register n..., hex value without 0x, with value r...,
+@@ -1393,7 +1393,7 @@
+ }
+ }
+ break;
+-
++
+ case 'm':
+ /* Read from memory. mAA..AA,LLLL
+ AA..AA is the address and LLLL is the length.
+@@ -1416,7 +1416,7 @@
+ mem2hex(output_buffer, addr, len);
+ }
+ break;
+-
++
+ case 'X':
+ /* Write to memory. XAA..AA,LLLL:XX..XX
+ AA..AA is the start address, LLLL is the number of bytes, and
+@@ -1448,7 +1448,7 @@
+ }
+ }
+ break;
+-
++
+ case 'c':
+ /* Continue execution. cAA..AA
+ AA..AA is the address where execution is resumed. If AA..AA is
+@@ -1472,15 +1472,15 @@
+ if ((sreg.s0_3 & 0x3fff) == 0) {
+ reg.ccs &= ~(1 << (S_CCS_BITNR + CCS_SHIFT));
+ }
+-
++
+ return;
+-
++
+ case 's':
+ /* Step. sAA..AA
+ AA..AA is the address where execution is resumed. If AA..AA is
+ omitted, resume at the present address. Success: return to the
+ executing thread. Failure: will never know. */
+-
++
+ if (input_buffer[1] != '\0') {
+ /* FIXME: Doesn't handle address argument. */
+ gdb_cris_strcpy(output_buffer, error_message[E04]);
+@@ -1497,7 +1497,7 @@
+ return;
+
+ case 'Z':
+-
++
+ /* Insert breakpoint or watchpoint, Ztype,addr,length.
+ Remote protocol says: A remote target shall return an empty string
+ for an unrecognized breakpoint or watchpoint packet type. */
+@@ -1522,7 +1522,7 @@
+ int addr = gdb_cris_strtol(&input_buffer[3], &lenptr, 16);
+ int len = gdb_cris_strtol(lenptr + 1, &dataptr, 16);
+ char type = input_buffer[1];
+-
++
+ remove_watchpoint(type, addr, len);
+ break;
+ }
+@@ -1537,14 +1537,14 @@
+ output_buffer[2] = lowhex(sigval);
+ output_buffer[3] = 0;
+ break;
+-
++
+ case 'D':
+ /* Detach from host. D
+ Success: OK, and return to the executing thread.
+ Failure: will never know */
+ putpacket("OK");
+ return;
+-
++
+ case 'k':
+ case 'r':
+ /* kill request or reset request.
+@@ -1552,7 +1552,7 @@
+ Failure: will never know. */
+ kill_restart();
+ break;
+-
++
+ case 'C':
+ case 'S':
+ case '!':
+@@ -1570,7 +1570,7 @@
+ and ignored (below)? */
+ gdb_cris_strcpy(output_buffer, error_message[E04]);
+ break;
+-
++
+ default:
+ /* The stub should ignore other request and send an empty
+ response ($#<checksum>). This way we can extend the protocol and GDB
+@@ -1587,7 +1587,7 @@
+ {
+ reg_intr_vect_rw_mask intr_mask;
+ reg_ser_rw_intr_mask ser_intr_mask;
+-
++
+ /* Configure the kgdb serial port. */
+ #if defined(CONFIG_ETRAX_KGDB_PORT0)
+ /* Note: no shortcut registered (not handled by multiple_interrupt).
+@@ -1597,9 +1597,9 @@
+ intr_mask = REG_RD(intr_vect, regi_irq, rw_mask);
+ intr_mask.ser0 = 1;
+ REG_WR(intr_vect, regi_irq, rw_mask, intr_mask);
+-
++
+ ser_intr_mask = REG_RD(ser, regi_ser0, rw_intr_mask);
+- ser_intr_mask.data_avail = regk_ser_yes;
++ ser_intr_mask.dav = regk_ser_yes;
+ REG_WR(ser, regi_ser0, rw_intr_mask, ser_intr_mask);
+ #elif defined(CONFIG_ETRAX_KGDB_PORT1)
+ /* Note: no shortcut registered (not handled by multiple_interrupt).
+@@ -1609,9 +1609,9 @@
+ intr_mask = REG_RD(intr_vect, regi_irq, rw_mask);
+ intr_mask.ser1 = 1;
+ REG_WR(intr_vect, regi_irq, rw_mask, intr_mask);
+-
++
+ ser_intr_mask = REG_RD(ser, regi_ser1, rw_intr_mask);
+- ser_intr_mask.data_avail = regk_ser_yes;
++ ser_intr_mask.dav = regk_ser_yes;
+ REG_WR(ser, regi_ser1, rw_intr_mask, ser_intr_mask);
+ #elif defined(CONFIG_ETRAX_KGDB_PORT2)
+ /* Note: no shortcut registered (not handled by multiple_interrupt).
+@@ -1621,9 +1621,9 @@
+ intr_mask = REG_RD(intr_vect, regi_irq, rw_mask);
+ intr_mask.ser2 = 1;
+ REG_WR(intr_vect, regi_irq, rw_mask, intr_mask);
+-
++
+ ser_intr_mask = REG_RD(ser, regi_ser2, rw_intr_mask);
+- ser_intr_mask.data_avail = regk_ser_yes;
++ ser_intr_mask.dav = regk_ser_yes;
+ REG_WR(ser, regi_ser2, rw_intr_mask, ser_intr_mask);
+ #elif defined(CONFIG_ETRAX_KGDB_PORT3)
+ /* Note: no shortcut registered (not handled by multiple_interrupt).
+@@ -1635,7 +1635,7 @@
+ REG_WR(intr_vect, regi_irq, rw_mask, intr_mask);
+
+ ser_intr_mask = REG_RD(ser, regi_ser3, rw_intr_mask);
+- ser_intr_mask.data_avail = regk_ser_yes;
++ ser_intr_mask.dav = regk_ser_yes;
+ REG_WR(ser, regi_ser3, rw_intr_mask, ser_intr_mask);
+ #endif
+
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/kgdb_asm.S linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/kgdb_asm.S
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/kgdb_asm.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/kgdb_asm.S 2006-10-13 14:43:13.000000000 +0200
+@@ -11,7 +11,7 @@
+ .globl kgdb_handle_exception
+
+ kgdb_handle_exception:
+-
++
+ ;; Create a register image of the caller.
+ ;;
+ ;; First of all, save the ACR on the stack since we need it for address calculations.
+@@ -262,7 +262,7 @@
+ ;; Nothing in S15, bank 3
+ clear.d [$acr]
+ addq 4, $acr
+-
++
+ ;; Check what got us here: get IDX field of EXS.
+ move $exs, $r10
+ and.d 0xff00, $r10
+@@ -307,7 +307,7 @@
+ handle_comm:
+ move.d internal_stack+1020, $sp ; Use the internal stack which grows upwards
+ jsr handle_exception ; Interactive routine
+- nop
++ nop
+
+ ;;
+ ;; Return to the caller
+@@ -345,7 +345,7 @@
+ ;; Nothing in S6 - S7, bank 0.
+ addq 4, $acr
+ addq 4, $acr
+-
++
+ move.d [$acr], $r0
+ move $r0, $s8
+ addq 4, $acr
+@@ -507,7 +507,7 @@
+ addq 8, $acr
+
+ ;; Skip BZ, VR.
+- addq 2, $acr
++ addq 2, $acr
+
+ move [$acr], $pid ; Restore PID
+ addq 4, $acr
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/pinmux.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/pinmux.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/pinmux.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/pinmux.c 2006-08-11 10:32:21.000000000 +0200
+@@ -1,7 +1,7 @@
+-/*
++/*
+ * Allocator for I/O pins. All pins are allocated to GPIO at bootup.
+ * Unassigned pins and GPIO pins can be allocated to a fixed interface
+- * or the I/O processor instead.
++ * or the I/O processor instead.
+ *
+ * Copyright (c) 2004 Axis Communications AB.
+ */
+@@ -33,9 +33,10 @@
+
+ if (!initialized) {
+ reg_pinmux_rw_pa pa = REG_RD(pinmux, regi_pinmux, rw_pa);
++ REG_WR_INT(pinmux, regi_pinmux, rw_hwprot, 0);
+ initialized = 1;
+- pa.pa0 = pa.pa1 = pa.pa2 = pa.pa3 =
+- pa.pa4 = pa.pa5 = pa.pa6 = pa.pa7 = regk_pinmux_yes;
++ pa.pa0 = pa.pa1 = pa.pa2 = pa.pa3 =
++ pa.pa4 = pa.pa5 = pa.pa6 = pa.pa7 = regk_pinmux_yes;
+ REG_WR(pinmux, regi_pinmux, rw_pa, pa);
+ crisv32_pinmux_alloc(PORT_B, 0, PORT_PINS - 1, pinmux_gpio);
+ crisv32_pinmux_alloc(PORT_C, 0, PORT_PINS - 1, pinmux_gpio);
+@@ -46,124 +47,137 @@
+ return 0;
+ }
+
+-int
+-crisv32_pinmux_alloc(int port, int first_pin, int last_pin, enum pin_mode mode)
++/*
++ * must be called with the pinmux_lock held.
++ */
++static int __crisv32_pinmux_alloc(int port, int first_pin, int last_pin,
++ enum pin_mode mode)
+ {
+ int i;
+- unsigned long flags;
+
+- crisv32_pinmux_init();
+-
+- if (port > PORTS)
++ if (port >= PORTS ||
++ first_pin < 0 || last_pin >= PORT_PINS || last_pin < first_pin)
+ return -EINVAL;
+-
+- spin_lock_irqsave(&pinmux_lock, flags);
+-
+- for (i = first_pin; i <= last_pin; i++)
++
++ for (i = first_pin; i <= last_pin; i++)
+ {
+- if ((pins[port][i] != pinmux_none) && (pins[port][i] != pinmux_gpio) &&
+- (pins[port][i] != mode))
++ if ((pins[port][i] != pinmux_none)
++ && (pins[port][i] != pinmux_gpio)
++ && (pins[port][i] != mode))
+ {
+- spin_unlock_irqrestore(&pinmux_lock, flags);
+ #ifdef DEBUG
+ panic("Pinmux alloc failed!\n");
+ #endif
+ return -EPERM;
+ }
+ }
+-
++
+ for (i = first_pin; i <= last_pin; i++)
+ pins[port][i] = mode;
+
+ crisv32_pinmux_set(port);
+-
+- spin_unlock_irqrestore(&pinmux_lock, flags);
+-
+ return 0;
+ }
+
+ int
++crisv32_pinmux_alloc(int port, int first_pin, int last_pin, enum pin_mode mode)
++{
++ int r;
++ unsigned long flags;
++
++ crisv32_pinmux_init();
++
++ spin_lock_irqsave(&pinmux_lock, flags);
++ r = __crisv32_pinmux_alloc(port, first_pin, last_pin, mode);
++ spin_unlock_irqrestore(&pinmux_lock, flags);
++ return r;
++}
++
++int
+ crisv32_pinmux_alloc_fixed(enum fixed_function function)
+ {
+ int ret = -EINVAL;
+ char saved[sizeof pins];
+ unsigned long flags;
+-
++ reg_pinmux_rw_hwprot hwprot;
++
++ crisv32_pinmux_init();
++
+ spin_lock_irqsave(&pinmux_lock, flags);
+
+ /* Save internal data for recovery */
+ memcpy(saved, pins, sizeof pins);
+-
+- reg_pinmux_rw_hwprot hwprot = REG_RD(pinmux, regi_pinmux, rw_hwprot);
+-
++
++ hwprot = REG_RD(pinmux, regi_pinmux, rw_hwprot);
++
+ switch(function)
+ {
+ case pinmux_ser1:
+- ret = crisv32_pinmux_alloc(PORT_C, 4, 7, pinmux_fixed);
++ ret = __crisv32_pinmux_alloc(PORT_C, 4, 7, pinmux_fixed);
+ hwprot.ser1 = regk_pinmux_yes;
+ break;
+ case pinmux_ser2:
+- ret = crisv32_pinmux_alloc(PORT_C, 8, 11, pinmux_fixed);
++ ret = __crisv32_pinmux_alloc(PORT_C, 8, 11, pinmux_fixed);
+ hwprot.ser2 = regk_pinmux_yes;
+ break;
+ case pinmux_ser3:
+- ret = crisv32_pinmux_alloc(PORT_C, 12, 15, pinmux_fixed);
++ ret = __crisv32_pinmux_alloc(PORT_C, 12, 15, pinmux_fixed);
+ hwprot.ser3 = regk_pinmux_yes;
+ break;
+ case pinmux_sser0:
+- ret = crisv32_pinmux_alloc(PORT_C, 0, 3, pinmux_fixed);
+- ret |= crisv32_pinmux_alloc(PORT_C, 16, 16, pinmux_fixed);
++ ret = __crisv32_pinmux_alloc(PORT_C, 0, 3, pinmux_fixed);
++ ret |= __crisv32_pinmux_alloc(PORT_C, 16, 16, pinmux_fixed);
+ hwprot.sser0 = regk_pinmux_yes;
+ break;
+ case pinmux_sser1:
+- ret = crisv32_pinmux_alloc(PORT_D, 0, 4, pinmux_fixed);
++ ret = __crisv32_pinmux_alloc(PORT_D, 0, 4, pinmux_fixed);
+ hwprot.sser1 = regk_pinmux_yes;
+ break;
+ case pinmux_ata0:
+- ret = crisv32_pinmux_alloc(PORT_D, 5, 7, pinmux_fixed);
+- ret |= crisv32_pinmux_alloc(PORT_D, 15, 17, pinmux_fixed);
++ ret = __crisv32_pinmux_alloc(PORT_D, 5, 7, pinmux_fixed);
++ ret |= __crisv32_pinmux_alloc(PORT_D, 15, 17, pinmux_fixed);
+ hwprot.ata0 = regk_pinmux_yes;
+ break;
+ case pinmux_ata1:
+- ret = crisv32_pinmux_alloc(PORT_D, 0, 4, pinmux_fixed);
+- ret |= crisv32_pinmux_alloc(PORT_E, 17, 17, pinmux_fixed);
++ ret = __crisv32_pinmux_alloc(PORT_D, 0, 4, pinmux_fixed);
++ ret |= __crisv32_pinmux_alloc(PORT_E, 17, 17, pinmux_fixed);
+ hwprot.ata1 = regk_pinmux_yes;
+ break;
+ case pinmux_ata2:
+- ret = crisv32_pinmux_alloc(PORT_C, 11, 15, pinmux_fixed);
+- ret |= crisv32_pinmux_alloc(PORT_E, 3, 3, pinmux_fixed);
++ ret = __crisv32_pinmux_alloc(PORT_C, 11, 15, pinmux_fixed);
++ ret |= __crisv32_pinmux_alloc(PORT_E, 3, 3, pinmux_fixed);
+ hwprot.ata2 = regk_pinmux_yes;
+ break;
+ case pinmux_ata3:
+- ret = crisv32_pinmux_alloc(PORT_C, 8, 10, pinmux_fixed);
+- ret |= crisv32_pinmux_alloc(PORT_C, 0, 2, pinmux_fixed);
++ ret = __crisv32_pinmux_alloc(PORT_C, 8, 10, pinmux_fixed);
++ ret |= __crisv32_pinmux_alloc(PORT_C, 0, 2, pinmux_fixed);
+ hwprot.ata2 = regk_pinmux_yes;
+ break;
+ case pinmux_ata:
+- ret = crisv32_pinmux_alloc(PORT_B, 0, 15, pinmux_fixed);
+- ret |= crisv32_pinmux_alloc(PORT_D, 8, 15, pinmux_fixed);
++ ret = __crisv32_pinmux_alloc(PORT_B, 0, 15, pinmux_fixed);
++ ret |= __crisv32_pinmux_alloc(PORT_D, 8, 15, pinmux_fixed);
+ hwprot.ata = regk_pinmux_yes;
+ break;
+ case pinmux_eth1:
+- ret = crisv32_pinmux_alloc(PORT_E, 0, 17, pinmux_fixed);
++ ret = __crisv32_pinmux_alloc(PORT_E, 0, 17, pinmux_fixed);
+ hwprot.eth1 = regk_pinmux_yes;
+ hwprot.eth1_mgm = regk_pinmux_yes;
+ break;
+ case pinmux_timer:
+- ret = crisv32_pinmux_alloc(PORT_C, 16, 16, pinmux_fixed);
++ ret = __crisv32_pinmux_alloc(PORT_C, 16, 16, pinmux_fixed);
+ hwprot.timer = regk_pinmux_yes;
+ spin_unlock_irqrestore(&pinmux_lock, flags);
+ return ret;
+ }
+-
++
+ if (!ret)
+ REG_WR(pinmux, regi_pinmux, rw_hwprot, hwprot);
+ else
+ memcpy(pins, saved, sizeof pins);
+-
+- spin_unlock_irqrestore(&pinmux_lock, flags);
+-
+- return ret;
++
++ spin_unlock_irqrestore(&pinmux_lock, flags);
++
++ return ret;
+ }
+
+ void
+@@ -189,33 +203,126 @@
+ #endif
+ }
+
+-int
+-crisv32_pinmux_dealloc(int port, int first_pin, int last_pin)
++/*
++ * must be called with the pinmux_lock held.
++ */
++static int __crisv32_pinmux_dealloc(int port, int first_pin, int last_pin)
+ {
+ int i;
++
++ if (port > PORTS)
++ return -EINVAL;
++
++ for (i = first_pin; i <= last_pin; i++)
++ pins[port][i] = pinmux_none;
++
++ crisv32_pinmux_set(port);
++
++ return 0;
++}
++
++int crisv32_pinmux_dealloc(int port, int first_pin, int last_pin)
++{
++ int r;
+ unsigned long flags;
+
+ crisv32_pinmux_init();
++
++ spin_lock_irqsave(&pinmux_lock, flags);
++ r = __crisv32_pinmux_dealloc(port, first_pin, last_pin);
++ spin_unlock_irqrestore(&pinmux_lock, flags);
++ return r;
++}
+
+- if (port > PORTS)
+- return -EINVAL;
++int
++crisv32_pinmux_dealloc_fixed(enum fixed_function function)
++{
++ int ret = -EINVAL;
++ char saved[sizeof pins];
++ unsigned long flags;
+
+ spin_lock_irqsave(&pinmux_lock, flags);
+
+- for (i = first_pin; i <= last_pin; i++)
+- pins[port][i] = pinmux_none;
++ /* Save internal data for recovery */
++ memcpy(saved, pins, sizeof pins);
++
++ reg_pinmux_rw_hwprot hwprot = REG_RD(pinmux, regi_pinmux, rw_hwprot);
++
++ switch(function)
++ {
++ case pinmux_ser1:
++ ret = __crisv32_pinmux_dealloc(PORT_C, 4, 7);
++ hwprot.ser1 = regk_pinmux_no;
++ break;
++ case pinmux_ser2:
++ ret = __crisv32_pinmux_dealloc(PORT_C, 8, 11);
++ hwprot.ser2 = regk_pinmux_no;
++ break;
++ case pinmux_ser3:
++ ret = __crisv32_pinmux_dealloc(PORT_C, 12, 15);
++ hwprot.ser3 = regk_pinmux_no;
++ break;
++ case pinmux_sser0:
++ ret = __crisv32_pinmux_dealloc(PORT_C, 0, 3);
++ ret |= __crisv32_pinmux_dealloc(PORT_C, 16, 16);
++ hwprot.sser0 = regk_pinmux_no;
++ break;
++ case pinmux_sser1:
++ ret = __crisv32_pinmux_dealloc(PORT_D, 0, 4);
++ hwprot.sser1 = regk_pinmux_no;
++ break;
++ case pinmux_ata0:
++ ret = __crisv32_pinmux_dealloc(PORT_D, 5, 7);
++ ret |= __crisv32_pinmux_dealloc(PORT_D, 15, 17);
++ hwprot.ata0 = regk_pinmux_no;
++ break;
++ case pinmux_ata1:
++ ret = __crisv32_pinmux_dealloc(PORT_D, 0, 4);
++ ret |= __crisv32_pinmux_dealloc(PORT_E, 17, 17);
++ hwprot.ata1 = regk_pinmux_no;
++ break;
++ case pinmux_ata2:
++ ret = __crisv32_pinmux_dealloc(PORT_C, 11, 15);
++ ret |= __crisv32_pinmux_dealloc(PORT_E, 3, 3);
++ hwprot.ata2 = regk_pinmux_no;
++ break;
++ case pinmux_ata3:
++ ret = __crisv32_pinmux_dealloc(PORT_C, 8, 10);
++ ret |= __crisv32_pinmux_dealloc(PORT_C, 0, 2);
++ hwprot.ata2 = regk_pinmux_no;
++ break;
++ case pinmux_ata:
++ ret = __crisv32_pinmux_dealloc(PORT_B, 0, 15);
++ ret |= __crisv32_pinmux_dealloc(PORT_D, 8, 15);
++ hwprot.ata = regk_pinmux_no;
++ break;
++ case pinmux_eth1:
++ ret = __crisv32_pinmux_dealloc(PORT_E, 0, 17);
++ hwprot.eth1 = regk_pinmux_no;
++ hwprot.eth1_mgm = regk_pinmux_no;
++ break;
++ case pinmux_timer:
++ ret = __crisv32_pinmux_dealloc(PORT_C, 16, 16);
++ hwprot.timer = regk_pinmux_no;
++ spin_unlock_irqrestore(&pinmux_lock, flags);
++ return ret;
++ }
++
++ if (!ret)
++ REG_WR(pinmux, regi_pinmux, rw_hwprot, hwprot);
++ else
++ memcpy(pins, saved, sizeof pins);
+
+- crisv32_pinmux_set(port);
+ spin_unlock_irqrestore(&pinmux_lock, flags);
+-
+- return 0;
++
++ return ret;
+ }
+
+ void
+ crisv32_pinmux_dump(void)
+ {
+ int i, j;
+-
++
+ crisv32_pinmux_init();
+
+ for (i = 0; i < PORTS; i++)
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/process.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/process.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/process.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/process.c 2006-10-13 14:43:13.000000000 +0200
+@@ -74,9 +74,9 @@
+ #else
+ {
+ reg_timer_rw_wd_ctrl wd_ctrl = {0};
+-
++
+ stop_watchdog();
+-
++
+ wd_ctrl.key = 16; /* Arbitrary key. */
+ wd_ctrl.cnt = 1; /* Minimum time. */
+ wd_ctrl.cmd = regk_timer_start;
+@@ -141,7 +141,7 @@
+ {
+ struct pt_regs *childregs;
+ struct switch_stack *swstack;
+-
++
+ /*
+ * Put the pt_regs structure at the end of the new kernel stack page and
+ * fix it up. Note: the task_struct doubles as the kernel stack for the
+@@ -152,7 +152,7 @@
+ p->set_child_tid = p->clear_child_tid = NULL;
+ childregs->r10 = 0; /* Child returns 0 after a fork/clone. */
+
+- /* Set a new TLS ?
++ /* Set a new TLS ?
+ * The TLS is in $mof beacuse it is the 5th argument to sys_clone.
+ */
+ if (p->mm && (clone_flags & CLONE_SETTLS)) {
+@@ -165,20 +165,20 @@
+ /* Paramater to ret_from_sys_call. 0 is don't restart the syscall. */
+ swstack->r9 = 0;
+
+- /*
++ /*
+ * We want to return into ret_from_sys_call after the _resume.
+ * ret_from_fork will call ret_from_sys_call.
+ */
+ swstack->return_ip = (unsigned long) ret_from_fork;
+-
++
+ /* Fix the user-mode and kernel-mode stackpointer. */
+- p->thread.usp = usp;
++ p->thread.usp = usp;
+ p->thread.ksp = (unsigned long) swstack;
+
+ return 0;
+ }
+
+-/*
++/*
+ * Be aware of the "magic" 7th argument in the four system-calls below.
+ * They need the latest stackframe, which is put as the 7th argument by
+ * entry.S. The previous arguments are dummies or actually used, but need
+@@ -200,7 +200,7 @@
+
+ /* FIXME: Is parent_tid/child_tid really third/fourth argument? Update lib? */
+ asmlinkage int
+-sys_clone(unsigned long newusp, unsigned long flags, int *parent_tid, int *child_tid,
++sys_clone(unsigned long newusp, unsigned long flags, int *parent_tid, int *child_tid,
+ unsigned long tls, long srp, struct pt_regs *regs)
+ {
+ if (!newusp)
+@@ -209,11 +209,11 @@
+ return do_fork(flags, newusp, regs, 0, parent_tid, child_tid);
+ }
+
+-/*
++/*
+ * vfork is a system call in i386 because of register-pressure - maybe
+ * we can remove it and handle it in libc but we put it here until then.
+ */
+-asmlinkage int
++asmlinkage int
+ sys_vfork(long r10, long r11, long r12, long r13, long mof, long srp,
+ struct pt_regs *regs)
+ {
+@@ -222,7 +222,7 @@
+
+ /* sys_execve() executes a new program. */
+ asmlinkage int
+-sys_execve(const char *fname, char **argv, char **envp, long r13, long mof, long srp,
++sys_execve(const char *fname, char **argv, char **envp, long r13, long mof, long srp,
+ struct pt_regs *regs)
+ {
+ int error;
+@@ -254,13 +254,13 @@
+ unsigned long usp = rdusp();
+ printk("ERP: %08lx SRP: %08lx CCS: %08lx USP: %08lx MOF: %08lx\n",
+ regs->erp, regs->srp, regs->ccs, usp, regs->mof);
+-
++
+ printk(" r0: %08lx r1: %08lx r2: %08lx r3: %08lx\n",
+ regs->r0, regs->r1, regs->r2, regs->r3);
+-
++
+ printk(" r4: %08lx r5: %08lx r6: %08lx r7: %08lx\n",
+ regs->r4, regs->r5, regs->r6, regs->r7);
+-
++
+ printk(" r8: %08lx r9: %08lx r10: %08lx r11: %08lx\n",
+ regs->r8, regs->r9, regs->r10, regs->r11);
+
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/ptrace.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/ptrace.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/ptrace.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/ptrace.c 2006-03-22 10:56:56.000000000 +0100
+@@ -20,7 +20,7 @@
+ #include <asm/processor.h>
+ #include <asm/arch/hwregs/supp_reg.h>
+
+-/*
++/*
+ * Determines which bits in CCS the user has access to.
+ * 1 = access, 0 = no access.
+ */
+@@ -84,7 +84,7 @@
+ *
+ * Make sure the single step bit is not set.
+ */
+-void
++void
+ ptrace_disable(struct task_struct *child)
+ {
+ unsigned long tmp;
+@@ -105,7 +105,7 @@
+ unsigned long __user *datap = (unsigned long __user *)data;
+
+ switch (request) {
+- /* Read word at location address. */
++ /* Read word at location address. */
+ case PTRACE_PEEKTEXT:
+ case PTRACE_PEEKDATA: {
+ unsigned long tmp;
+@@ -122,11 +122,11 @@
+ tmp = *(unsigned long*)addr;
+ } else {
+ copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
+-
++
+ if (copied != sizeof(tmp))
+ break;
+ }
+-
++
+ ret = put_user(tmp,datap);
+ break;
+ }
+@@ -143,18 +143,18 @@
+ ret = put_user(tmp, datap);
+ break;
+ }
+-
++
+ /* Write the word at location address. */
+ case PTRACE_POKETEXT:
+ case PTRACE_POKEDATA:
+ ret = 0;
+-
++
+ if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data))
+ break;
+-
++
+ ret = -EIO;
+ break;
+-
++
+ /* Write the word at location address in the USER area. */
+ case PTRACE_POKEUSR:
+ ret = -EIO;
+@@ -178,10 +178,10 @@
+ case PTRACE_SYSCALL:
+ case PTRACE_CONT:
+ ret = -EIO;
+-
++
+ if (!valid_signal(data))
+ break;
+-
++
+ /* Continue means no single-step. */
+ put_reg(child, PT_SPC, 0);
+
+@@ -198,27 +198,27 @@
+ else {
+ clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+ }
+-
++
+ child->exit_code = data;
+-
++
+ /* TODO: make sure any pending breakpoint is killed */
+ wake_up_process(child);
+ ret = 0;
+-
++
+ break;
+-
++
+ /* Make the child exit by sending it a sigkill. */
+ case PTRACE_KILL:
+ ret = 0;
+-
++
+ if (child->exit_state == EXIT_ZOMBIE)
+ break;
+-
++
+ child->exit_code = SIGKILL;
+-
++
+ /* Deconfigure single-step and h/w bp. */
+ ptrace_disable(child);
+-
++
+ /* TODO: make sure any pending breakpoint is killed */
+ wake_up_process(child);
+ break;
+@@ -227,7 +227,7 @@
+ case PTRACE_SINGLESTEP: {
+ unsigned long tmp;
+ ret = -EIO;
+-
++
+ /* Set up SPC if not set already (in which case we have
+ no other choice but to trust it). */
+ if (!get_reg(child, PT_SPC)) {
+@@ -240,7 +240,7 @@
+
+ if (!valid_signal(data))
+ break;
+-
++
+ clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+
+ /* TODO: set some clever breakpoint mechanism... */
+@@ -259,15 +259,15 @@
+ case PTRACE_GETREGS: {
+ int i;
+ unsigned long tmp;
+-
++
+ for (i = 0; i <= PT_MAX; i++) {
+ tmp = get_reg(child, i);
+-
++
+ if (put_user(tmp, datap)) {
+ ret = -EFAULT;
+ goto out_tsk;
+ }
+-
++
+ datap++;
+ }
+
+@@ -279,22 +279,22 @@
+ case PTRACE_SETREGS: {
+ int i;
+ unsigned long tmp;
+-
++
+ for (i = 0; i <= PT_MAX; i++) {
+ if (get_user(tmp, datap)) {
+ ret = -EFAULT;
+ goto out_tsk;
+ }
+-
++
+ if (i == PT_CCS) {
+ tmp &= CCS_MASK;
+ tmp |= get_reg(child, PT_CCS) & ~CCS_MASK;
+ }
+-
++
+ put_reg(child, i, tmp);
+ datap++;
+ }
+-
++
+ ret = 0;
+ break;
+ }
+@@ -304,6 +304,7 @@
+ break;
+ }
+
++out_tsk:
+ return ret;
+ }
+
+@@ -311,15 +312,15 @@
+ {
+ if (!test_thread_flag(TIF_SYSCALL_TRACE))
+ return;
+-
++
+ if (!(current->ptrace & PT_PTRACED))
+ return;
+-
++
+ /* the 0x80 provides a way for the tracing parent to distinguish
+ between a syscall stop and SIGTRAP delivery */
+ ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
+ ? 0x80 : 0));
+-
++
+ /*
+ * This isn't the same as continuing with a signal, but it will do for
+ * normal use.
+@@ -338,7 +339,7 @@
+ int copied;
+ int opsize = 0;
+
+- /* Read the opcode at pc (do what PTRACE_PEEKTEXT would do). */
++ /* Read the opcode at pc (do what PTRACE_PEEKTEXT would do). */
+ copied = access_process_vm(child, pc, &opcode, sizeof(opcode), 0);
+ if (copied != sizeof(opcode))
+ return 0;
+@@ -361,7 +362,7 @@
+ opsize = 6;
+ break;
+ default:
+- panic("ERROR: Couldn't find size of opcode 0x%lx at 0x%lx\n",
++ panic("ERROR: Couldn't find size of opcode 0x%lx at 0x%lx\n",
+ opcode, pc);
+ }
+
+@@ -378,7 +379,7 @@
+ /* Delay slot bit set. Report as stopped on proper
+ instruction. */
+ if (spc) {
+- /* Rely on SPC if set. FIXME: We might want to check
++ /* Rely on SPC if set. FIXME: We might want to check
+ that EXS indicates we stopped due to a single-step
+ exception. */
+ pc = spc;
+@@ -422,7 +423,7 @@
+ register int old_srs;
+
+ #ifdef CONFIG_ETRAX_KGDB
+- /* Ignore write, but pretend it was ok if value is 0
++ /* Ignore write, but pretend it was ok if value is 0
+ (we don't want POKEUSR/SETREGS failing unnessecarily). */
+ return (data == 0) ? ret : -1;
+ #endif
+@@ -431,7 +432,7 @@
+ if (!bp_owner)
+ bp_owner = pid;
+ else if (bp_owner != pid) {
+- /* Ignore write, but pretend it was ok if value is 0
++ /* Ignore write, but pretend it was ok if value is 0
+ (we don't want POKEUSR/SETREGS failing unnessecarily). */
+ return (data == 0) ? ret : -1;
+ }
+@@ -440,7 +441,7 @@
+ SPEC_REG_RD(SPEC_REG_SRS, old_srs);
+ /* Switch to BP bank. */
+ SUPP_BANK_SEL(BANK_BP);
+-
++
+ switch (regno - PT_BP) {
+ case 0:
+ SUPP_REG_WR(0, data); break;
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/setup.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/setup.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/setup.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/setup.c 2006-10-13 14:43:13.000000000 +0200
+@@ -40,12 +40,12 @@
+
+ {"ETRAX 100LX", 10, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB
+ | HAS_MMU | HAS_MMU_BUG},
+-
++
+ {"ETRAX 100LX v2", 11, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB
+ | HAS_MMU},
+-
++
+ {"ETRAX FS", 32, 32, HAS_ETHERNET100 | HAS_ATA | HAS_MMU},
+-
++
+ {"Unknown", 0, 0, 0}
+ };
+
+@@ -67,7 +67,7 @@
+ #endif
+
+ revision = rdvr();
+-
++
+ for (i = 0; i < entries; i++) {
+ if (cpinfo[i].rev == revision) {
+ info = &cpinfo[i];
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/signal.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/signal.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/signal.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/signal.c 2006-03-22 10:56:56.000000000 +0100
+@@ -50,7 +50,7 @@
+ unsigned char retcode[8]; /* Trampoline code. */
+ };
+
+-int do_signal(int restart, sigset_t *oldset, struct pt_regs *regs);
++void do_signal(int restart, struct pt_regs *regs);
+ void keep_debug_flags(unsigned long oldccs, unsigned long oldspc,
+ struct pt_regs *regs);
+ /*
+@@ -61,74 +61,16 @@
+ sys_sigsuspend(old_sigset_t mask, long r11, long r12, long r13, long mof,
+ long srp, struct pt_regs *regs)
+ {
+- sigset_t saveset;
+-
+ mask &= _BLOCKABLE;
+-
+ spin_lock_irq(&current->sighand->siglock);
+-
+- saveset = current->blocked;
+-
++ current->saved_sigmask = current->blocked;
+ siginitset(&current->blocked, mask);
+-
+ recalc_sigpending();
+ spin_unlock_irq(&current->sighand->siglock);
+-
+- regs->r10 = -EINTR;
+-
+- while (1) {
+- current->state = TASK_INTERRUPTIBLE;
+- schedule();
+-
+- if (do_signal(0, &saveset, regs)) {
+- /*
+- * This point is reached twice: once to call
+- * the signal handler, then again to return
+- * from the sigsuspend system call. When
+- * calling the signal handler, R10 hold the
+- * signal number as set by do_signal(). The
+- * sigsuspend call will always return with
+- * the restored value above; -EINTR.
+- */
+- return regs->r10;
+- }
+- }
+-}
+-
+-/* Define some dummy arguments to be able to reach the regs argument. */
+-int
+-sys_rt_sigsuspend(sigset_t *unewset, size_t sigsetsize, long r12, long r13,
+- long mof, long srp, struct pt_regs *regs)
+-{
+- sigset_t saveset;
+- sigset_t newset;
+-
+- if (sigsetsize != sizeof(sigset_t))
+- return -EINVAL;
+-
+- if (copy_from_user(&newset, unewset, sizeof(newset)))
+- return -EFAULT;
+-
+- sigdelsetmask(&newset, ~_BLOCKABLE);
+- spin_lock_irq(&current->sighand->siglock);
+-
+- saveset = current->blocked;
+- current->blocked = newset;
+-
+- recalc_sigpending();
+- spin_unlock_irq(&current->sighand->siglock);
+-
+- regs->r10 = -EINTR;
+-
+- while (1) {
+- current->state = TASK_INTERRUPTIBLE;
+- schedule();
+-
+- if (do_signal(0, &saveset, regs)) {
+- /* See comment in function above. */
+- return regs->r10;
+- }
+- }
++ current->state = TASK_INTERRUPTIBLE;
++ schedule();
++ set_thread_flag(TIF_RESTORE_SIGMASK);
++ return -ERESTARTNOHAND;
+ }
+
+ int
+@@ -263,7 +205,7 @@
+ unsigned long oldccs = regs->ccs;
+
+ frame = (struct rt_signal_frame *) rdusp();
+-
++
+ /*
+ * Since the signal is stacked on a dword boundary, the frame
+ * should be dword aligned here as well. It it's not, then the
+@@ -285,7 +227,7 @@
+
+ recalc_sigpending();
+ spin_unlock_irq(&current->sighand->siglock);
+-
++
+ if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
+ goto badframe;
+
+@@ -311,7 +253,7 @@
+
+ err = 0;
+ usp = rdusp();
+-
++
+ /*
+ * Copy the registers. They are located first in sc, so it's
+ * possible to use sc directly.
+@@ -351,7 +293,7 @@
+ * which performs the syscall sigreturn(), or a provided user-mode
+ * trampoline.
+ */
+-static void
++static int
+ setup_frame(int sig, struct k_sigaction *ka, sigset_t *set,
+ struct pt_regs * regs)
+ {
+@@ -388,7 +330,7 @@
+ /* Trampoline - the desired return ip is in the signal return page. */
+ return_ip = cris_signal_return_page;
+
+- /*
++ /*
+ * This is movu.w __NR_sigreturn, r9; break 13;
+ *
+ * WE DO NOT USE IT ANY MORE! It's only left here for historical
+@@ -402,7 +344,7 @@
+
+ if (err)
+ goto give_sigsegv;
+-
++
+ /*
+ * Set up registers for signal handler.
+ *
+@@ -417,16 +359,17 @@
+ /* Actually move the USP to reflect the stacked frame. */
+ wrusp((unsigned long)frame);
+
+- return;
++ return 0;
+
+ give_sigsegv:
+ if (sig == SIGSEGV)
+ ka->sa.sa_handler = SIG_DFL;
+-
++
+ force_sig(SIGSEGV, current);
++ return -EFAULT;
+ }
+
+-static void
++static int
+ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
+ sigset_t *set, struct pt_regs * regs)
+ {
+@@ -441,11 +384,11 @@
+ goto give_sigsegv;
+
+ /* TODO: what is the current->exec_domain stuff and invmap ? */
+-
++
+ err |= __put_user(&frame->info, &frame->pinfo);
+ err |= __put_user(&frame->uc, &frame->puc);
+ err |= copy_siginfo_to_user(&frame->info, info);
+-
++
+ if (err)
+ goto give_sigsegv;
+
+@@ -467,7 +410,7 @@
+ /* Trampoline - the desired return ip is in the signal return page. */
+ return_ip = cris_signal_return_page + 6;
+
+- /*
++ /*
+ * This is movu.w __NR_rt_sigreturn, r9; break 13;
+ *
+ * WE DO NOT USE IT ANY MORE! It's only left here for historical
+@@ -478,7 +421,7 @@
+
+ err |= __put_user(__NR_rt_sigreturn,
+ (short __user*)(frame->retcode+2));
+-
++
+ err |= __put_user(0xe93d, (short __user*)(frame->retcode+4));
+ }
+
+@@ -503,21 +446,24 @@
+ /* Actually move the usp to reflect the stacked frame. */
+ wrusp((unsigned long)frame);
+
+- return;
++ return 0;
+
+ give_sigsegv:
+ if (sig == SIGSEGV)
+ ka->sa.sa_handler = SIG_DFL;
+-
++
+ force_sig(SIGSEGV, current);
++ return -EFAULT;
+ }
+
+ /* Invoke a singal handler to, well, handle the signal. */
+-static inline void
++static inline int
+ handle_signal(int canrestart, unsigned long sig,
+ siginfo_t *info, struct k_sigaction *ka,
+ sigset_t *oldset, struct pt_regs * regs)
+ {
++ int ret;
++
+ /* Check if this got called from a system call. */
+ if (canrestart) {
+ /* If so, check system call restarting. */
+@@ -561,19 +507,23 @@
+
+ /* Set up the stack frame. */
+ if (ka->sa.sa_flags & SA_SIGINFO)
+- setup_rt_frame(sig, ka, info, oldset, regs);
++ ret = setup_rt_frame(sig, ka, info, oldset, regs);
+ else
+- setup_frame(sig, ka, oldset, regs);
++ ret = setup_frame(sig, ka, oldset, regs);
+
+ if (ka->sa.sa_flags & SA_ONESHOT)
+ ka->sa.sa_handler = SIG_DFL;
+
+- spin_lock_irq(&current->sighand->siglock);
+- sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
+- if (!(ka->sa.sa_flags & SA_NODEFER))
+- sigaddset(&current->blocked,sig);
+- recalc_sigpending();
+- spin_unlock_irq(&current->sighand->siglock);
++ if (ret == 0) {
++ spin_lock_irq(&current->sighand->siglock);
++ sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
++ if (!(ka->sa.sa_flags & SA_NODEFER))
++ sigaddset(&current->blocked,sig);
++ recalc_sigpending();
++ spin_unlock_irq(&current->sighand->siglock);
++ }
++
++ return ret;
+ }
+
+ /*
+@@ -587,12 +537,13 @@
+ * we can use user_mode(regs) to see if we came directly from kernel or user
+ * mode below.
+ */
+-int
+-do_signal(int canrestart, sigset_t *oldset, struct pt_regs *regs)
++void
++do_signal(int canrestart, struct pt_regs *regs)
+ {
+ int signr;
+ siginfo_t info;
+ struct k_sigaction ka;
++ sigset_t *oldset;
+
+ /*
+ * The common case should go fast, which is why this point is
+@@ -600,17 +551,27 @@
+ * without doing anything.
+ */
+ if (!user_mode(regs))
+- return 1;
++ return;
+
+- if (!oldset)
++ if (test_thread_flag(TIF_RESTORE_SIGMASK))
++ oldset = &current->saved_sigmask;
++ else
+ oldset = &current->blocked;
+
+ signr = get_signal_to_deliver(&info, &ka, regs, NULL);
+-
++
+ if (signr > 0) {
+- /* Deliver the signal. */
+- handle_signal(canrestart, signr, &info, &ka, oldset, regs);
+- return 1;
++ /* Whee! Actually deliver the signal. */
++ if (handle_signal(canrestart, signr, &info, &ka, oldset, regs)) {
++ /* a signal was successfully delivered; the saved
++ * sigmask will have been stored in the signal frame,
++ * and will be restored by sigreturn, so we can simply
++ * clear the TIF_RESTORE_SIGMASK flag */
++ if (test_thread_flag(TIF_RESTORE_SIGMASK))
++ clear_thread_flag(TIF_RESTORE_SIGMASK);
++ }
++
++ return;
+ }
+
+ /* Got here from a system call? */
+@@ -621,14 +582,19 @@
+ regs->r10 == -ERESTARTNOINTR) {
+ RESTART_CRIS_SYS(regs);
+ }
+-
++
+ if (regs->r10 == -ERESTART_RESTARTBLOCK){
+ regs->r10 = __NR_restart_syscall;
+ regs->erp -= 2;
+ }
+ }
+-
+- return 0;
++
++ /* if there's no signal to deliver, we just put the saved sigmask
++ * back */
++ if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
++ clear_thread_flag(TIF_RESTORE_SIGMASK);
++ sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
++ }
+ }
+
+ asmlinkage void
+@@ -651,7 +617,7 @@
+ sys_kill(ti->task->pid, sig);
+ }
+
+-void
++void
+ keep_debug_flags(unsigned long oldccs, unsigned long oldspc,
+ struct pt_regs *regs)
+ {
+@@ -666,7 +632,7 @@
+ regs->ccs |= (1 << (S_CCS_BITNR + CCS_SHIFT));
+ /* Assume the SPC is valid and interesting. */
+ regs->spc = oldspc;
+-
++
+ } else if (oldccs & (1 << (S_CCS_BITNR + CCS_SHIFT))) {
+ /* If a h/w bp was set in the signal handler we need
+ to keep the S flag. */
+@@ -679,7 +645,7 @@
+ have forgotten all about it. */
+ regs->spc = 0;
+ regs->ccs &= ~(1 << (S_CCS_BITNR + CCS_SHIFT));
+- }
++ }
+ }
+
+ /* Set up the trampolines on the signal return page. */
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/smp.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/smp.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/smp.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/smp.c 2007-01-09 10:29:19.000000000 +0100
+@@ -20,6 +20,7 @@
+ #define IPI_SCHEDULE 1
+ #define IPI_CALL 2
+ #define IPI_FLUSH_TLB 4
++#define IPI_BOOT 8
+
+ #define FLUSH_ALL (void*)0xffffffff
+
+@@ -30,6 +31,8 @@
+ cpumask_t cpu_online_map = CPU_MASK_NONE;
+ EXPORT_SYMBOL(cpu_online_map);
+ cpumask_t phys_cpu_present_map = CPU_MASK_NONE;
++cpumask_t cpu_possible_map;
++EXPORT_SYMBOL(cpu_possible_map);
+ EXPORT_SYMBOL(phys_cpu_present_map);
+
+ /* Variables used during SMP boot */
+@@ -55,7 +58,7 @@
+ extern int setup_irq(int, struct irqaction *);
+
+ /* Mode registers */
+-static unsigned long irq_regs[NR_CPUS] =
++static unsigned long irq_regs[NR_CPUS] =
+ {
+ regi_irq,
+ regi_irq2
+@@ -97,6 +100,7 @@
+
+ cpu_set(0, cpu_online_map);
+ cpu_set(0, phys_cpu_present_map);
++ cpu_set(0, cpu_possible_map);
+ }
+
+ void __init smp_cpus_done(unsigned int max_cpus)
+@@ -109,6 +113,7 @@
+ {
+ unsigned timeout;
+ struct task_struct *idle;
++ cpumask_t cpu_mask = CPU_MASK_NONE;
+
+ idle = fork_idle(cpuid);
+ if (IS_ERR(idle))
+@@ -120,6 +125,12 @@
+ smp_init_current_idle_thread = task_thread_info(idle);
+ cpu_now_booting = cpuid;
+
++ /* Kick it */
++ cpu_set(cpuid, cpu_online_map);
++ cpu_set(cpuid, cpu_mask);
++ send_ipi(IPI_BOOT, 0, cpu_mask);
++ cpu_clear(cpuid, cpu_online_map);
++
+ /* Wait for CPU to come online */
+ for (timeout = 0; timeout < 10000; timeout++) {
+ if(cpu_online(cpuid)) {
+@@ -142,7 +153,7 @@
+ * specific stuff such as the local timer and the MMU. */
+ void __init smp_callin(void)
+ {
+- extern void cpu_idle(void);
++ extern void cpu_idle(void);
+
+ int cpu = cpu_now_booting;
+ reg_intr_vect_rw_mask vect_mask = {0};
+@@ -190,8 +201,8 @@
+
+ /* cache_decay_ticks is used by the scheduler to decide if a process
+ * is "hot" on one CPU. A higher value means a higher penalty to move
+- * a process to another CPU. Our cache is rather small so we report
+- * 1 tick.
++ * a process to another CPU. Our cache is rather small so we report
++ * 1 tick.
+ */
+ unsigned long cache_decay_ticks = 1;
+
+@@ -205,14 +216,14 @@
+ {
+ cpumask_t cpu_mask = CPU_MASK_NONE;
+ cpu_set(cpu, cpu_mask);
+- send_ipi(IPI_SCHEDULE, 0, cpu_mask);
++ send_ipi(IPI_SCHEDULE, 0, cpu_mask);
+ }
+
+ /* TLB flushing
+ *
+ * Flush needs to be done on the local CPU and on any other CPU that
+ * may have the same mapping. The mm->cpu_vm_mask is used to keep track
+- * of which CPUs that a specific process has been executed on.
++ * of which CPUs that a specific process has been executed on.
+ */
+ void flush_tlb_common(struct mm_struct* mm, struct vm_area_struct* vma, unsigned long addr)
+ {
+@@ -244,7 +255,7 @@
+ cpu_set(smp_processor_id(), mm->cpu_vm_mask);
+ }
+
+-void flush_tlb_page(struct vm_area_struct *vma,
++void flush_tlb_page(struct vm_area_struct *vma,
+ unsigned long addr)
+ {
+ __flush_tlb_page(vma, addr);
+@@ -252,8 +263,8 @@
+ }
+
+ /* Inter processor interrupts
+- *
+- * The IPIs are used for:
++ *
++ * The IPIs are used for:
+ * * Force a schedule on a CPU
+ * * FLush TLB on other CPUs
+ * * Call a function on other CPUs
+@@ -341,7 +352,7 @@
+ else if (flush_vma == FLUSH_ALL)
+ __flush_tlb_mm(flush_mm);
+ else
+- __flush_tlb_page(flush_vma, flush_addr);
++ __flush_tlb_page(flush_vma, flush_addr);
+ }
+
+ ipi.vector = 0;
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/time.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/time.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/time.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/time.c 2007-01-09 10:29:19.000000000 +0100
+@@ -1,4 +1,4 @@
+-/* $Id: time.c,v 1.19 2005/04/29 05:40:09 starvik Exp $
++/* $Id: time.c,v 1.25 2007/01/09 09:29:19 starvik Exp $
+ *
+ * linux/arch/cris/arch-v32/kernel/time.c
+ *
+@@ -14,12 +14,14 @@
+ #include <linux/sched.h>
+ #include <linux/init.h>
+ #include <linux/threads.h>
++#include <linux/cpufreq.h>
+ #include <asm/types.h>
+ #include <asm/signal.h>
+ #include <asm/io.h>
+ #include <asm/delay.h>
+ #include <asm/rtc.h>
+ #include <asm/irq.h>
++#include <asm/irq_regs.h>
+
+ #include <asm/arch/hwregs/reg_map.h>
+ #include <asm/arch/hwregs/reg_rdwr.h>
+@@ -31,7 +33,7 @@
+ #define ETRAX_WD_HZ 763 /* watchdog counts at 763 Hz */
+ #define ETRAX_WD_CNT ((2*ETRAX_WD_HZ)/HZ + 1) /* Number of 763 counts before watchdog bites */
+
+-unsigned long timer_regs[NR_CPUS] =
++unsigned long timer_regs[NR_CPUS] =
+ {
+ regi_timer,
+ #ifdef CONFIG_SMP
+@@ -44,6 +46,15 @@
+ extern int setup_irq(int, struct irqaction *);
+ extern int have_rtc;
+
++#ifdef CONFIG_CPU_FREQ
++static int
++cris_time_freq_notifier(struct notifier_block *nb, unsigned long val, void *data);
++
++static struct notifier_block cris_time_freq_notifier_block = {
++ .notifier_call = cris_time_freq_notifier
++};
++#endif
++
+ unsigned long get_ns_in_jiffie(void)
+ {
+ reg_timer_r_tmr0_data data;
+@@ -63,7 +74,7 @@
+ static unsigned long jiffies_p = 0;
+
+ /*
+- * cache volatile jiffies temporarily; we have IRQs turned off.
++ * cache volatile jiffies temporarily; we have IRQs turned off.
+ */
+ unsigned long jiffies_t;
+
+@@ -82,7 +93,7 @@
+ */
+ if( jiffies_t == jiffies_p ) {
+ if( count > count_p ) {
+- /* Timer wrapped, use new count and prescale
++ /* Timer wrapped, use new count and prescale
+ * increase the time corresponding to one jiffie
+ */
+ usec_count = 1000000/HZ;
+@@ -101,7 +112,7 @@
+ * The watchdog timer is an 8-bit timer with a configurable start value.
+ * Once started the whatchdog counts downwards with a frequency of 763 Hz
+ * (100/131072 MHz). When the watchdog counts down to 1, it generates an
+- * NMI (Non Maskable Interrupt), and when it counts down to 0, it resets the
++ * NMI (Non Maskable Interrupt), and when it counts down to 0, it resets the
+ * chip.
+ */
+ /* This gives us 1.3 ms to do something useful when the NMI comes */
+@@ -124,7 +135,7 @@
+ {
+ #if defined(CONFIG_ETRAX_WATCHDOG)
+ reg_timer_rw_wd_ctrl wd_ctrl = { 0 };
+-
++
+ /* only keep watchdog happy as long as we have memory left! */
+ if(nr_free_pages() > WATCHDOG_MIN_FREE_PAGES) {
+ /* reset the watchdog with the inverse of the old key */
+@@ -139,7 +150,7 @@
+
+ /* stop the watchdog - we still need the correct key */
+
+-void
++void
+ stop_watchdog(void)
+ {
+ #if defined(CONFIG_ETRAX_WATCHDOG)
+@@ -149,7 +160,7 @@
+ wd_ctrl.cmd = regk_timer_stop;
+ wd_ctrl.key = watchdog_key;
+ REG_WR(timer, regi_timer, rw_wd_ctrl, wd_ctrl);
+-#endif
++#endif
+ }
+
+ extern void show_registers(struct pt_regs *regs);
+@@ -160,7 +171,8 @@
+ #if defined(CONFIG_ETRAX_WATCHDOG)
+ extern int cause_of_death;
+
+- raw_printk("Watchdog bite\n");
++ oops_in_progress = 1;
++ printk("Watchdog bite\n");
+
+ /* Check if forced restart or unexpected watchdog */
+ if (cause_of_death == 0xbedead) {
+@@ -169,8 +181,9 @@
+
+ /* Unexpected watchdog, stop the watchdog and dump registers*/
+ stop_watchdog();
+- raw_printk("Oops: bitten by watchdog\n");
+- show_registers(regs);
++ printk("Oops: bitten by watchdog\n");
++ show_registers(regs);
++ oops_in_progress = 0;
+ #ifndef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
+ reset_watchdog();
+ #endif
+@@ -191,8 +204,9 @@
+ extern void cris_do_profile(struct pt_regs *regs);
+
+ static inline irqreturn_t
+-timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
++timer_interrupt(int irq, void *dev_id)
+ {
++ struct pt_regs* regs = get_irq_regs();
+ int cpu = smp_processor_id();
+ reg_timer_r_masked_intr masked_intr;
+ reg_timer_rw_ack_intr ack_intr = { 0 };
+@@ -226,7 +240,7 @@
+ * CMOS clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
+ * called as close as possible to 500 ms before the new second starts.
+ *
+- * The division here is not time critical since it will run once in
++ * The division here is not time critical since it will run once in
+ * 11 minutes
+ */
+ if ((time_status & STA_UNSYNC) == 0 &&
+@@ -246,7 +260,7 @@
+ */
+
+ static struct irqaction irq_timer = {
+- .mask = timer_interrupt,
++ .handler = timer_interrupt,
+ .flags = IRQF_SHARED | IRQF_DISABLED,
+ .mask = CPU_MASK_NONE,
+ .name = "timer"
+@@ -262,7 +276,7 @@
+
+ /* Setup the etrax timers
+ * Base frequency is 100MHz, divider 1000000 -> 100 HZ
+- * We use timer0, so timer1 is free.
++ * We use timer0, so timer1 is free.
+ * The trig timer is used by the fasttimer API if enabled.
+ */
+
+@@ -284,11 +298,11 @@
+ {
+ reg_intr_vect_rw_mask intr_mask;
+
+- /* probe for the RTC and read it if it exists
+- * Before the RTC can be probed the loops_per_usec variable needs
+- * to be initialized to make usleep work. A better value for
+- * loops_per_usec is calculated by the kernel later once the
+- * clock has started.
++ /* probe for the RTC and read it if it exists
++ * Before the RTC can be probed the loops_per_usec variable needs
++ * to be initialized to make usleep work. A better value for
++ * loops_per_usec is calculated by the kernel later once the
++ * clock has started.
+ */
+ loops_per_usec = 50;
+
+@@ -297,7 +311,7 @@
+ xtime.tv_sec = 0;
+ xtime.tv_nsec = 0;
+ have_rtc = 0;
+- } else {
++ } else {
+ /* get the current time */
+ have_rtc = 1;
+ update_xtime_from_cmos();
+@@ -316,9 +330,9 @@
+ intr_mask = REG_RD(intr_vect, regi_irq, rw_mask);
+ intr_mask.timer = 1;
+ REG_WR(intr_vect, regi_irq, rw_mask, intr_mask);
+-
++
+ /* now actually register the timer irq handler that calls timer_interrupt() */
+-
++
+ setup_irq(TIMER_INTR_VECT, &irq_timer);
+
+ /* enable watchdog if we should use one */
+@@ -330,10 +344,7 @@
+ /* If we use the hardware watchdog, we want to trap it as an NMI
+ and dump registers before it resets us. For this to happen, we
+ must set the "m" NMI enable flag (which once set, is unset only
+- when an NMI is taken).
+-
+- The same goes for the external NMI, but that doesn't have any
+- driver or infrastructure support yet. */
++ when an NMI is taken). */
+ {
+ unsigned long flags;
+ local_save_flags(flags);
+@@ -341,4 +352,27 @@
+ local_irq_restore(flags);
+ }
+ #endif
++
++#ifdef CONFIG_CPU_FREQ
++ cpufreq_register_notifier(&cris_time_freq_notifier_block,
++ CPUFREQ_TRANSITION_NOTIFIER);
++#endif
++}
++
++#ifdef CONFIG_CPU_FREQ
++static int
++cris_time_freq_notifier(struct notifier_block *nb, unsigned long val, void *data)
++{
++ struct cpufreq_freqs *freqs = data;
++ if (val == CPUFREQ_POSTCHANGE) {
++ reg_timer_r_tmr0_data data;
++ reg_timer_rw_tmr0_div div = (freqs->new * 500) / HZ;
++ do
++ {
++ data = REG_RD(timer, timer_regs[freqs->cpu], r_tmr0_data);
++ } while (data > 20);
++ REG_WR(timer, timer_regs[freqs->cpu], rw_tmr0_div, div);
++ }
++ return 0;
+ }
++#endif
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/traps.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/traps.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/traps.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/traps.c 2006-12-11 14:04:24.000000000 +0100
+@@ -1,50 +1,43 @@
+ /*
+- * Copyright (C) 2003, Axis Communications AB.
++ * Copyright (C) 2003-2006, Axis Communications AB.
+ */
+
+ #include <linux/ptrace.h>
+ #include <asm/uaccess.h>
+-
+ #include <asm/arch/hwregs/supp_reg.h>
+-
+-extern void reset_watchdog(void);
+-extern void stop_watchdog(void);
+-
+-extern int raw_printk(const char *fmt, ...);
++#include <asm/arch/hwregs/intr_vect_defs.h>
+
+ void
+ show_registers(struct pt_regs *regs)
+ {
+ /*
+ * It's possible to use either the USP register or current->thread.usp.
+- * USP might not correspond to the current proccess for all cases this
++ * USP might not correspond to the current process for all cases this
+ * function is called, and current->thread.usp isn't up to date for the
+- * current proccess. Experience shows that using USP is the way to go.
++ * current process. Experience shows that using USP is the way to go.
+ */
+- unsigned long usp;
++ unsigned long usp = rdusp();
+ unsigned long d_mmu_cause;
+ unsigned long i_mmu_cause;
+
+- usp = rdusp();
++ printk("CPU: %d\n", smp_processor_id());
+
+- raw_printk("CPU: %d\n", smp_processor_id());
++ printk("ERP: %08lx SRP: %08lx CCS: %08lx USP: %08lx MOF: %08lx\n",
++ regs->erp, regs->srp, regs->ccs, usp, regs->mof);
+
+- raw_printk("ERP: %08lx SRP: %08lx CCS: %08lx USP: %08lx MOF: %08lx\n",
+- regs->erp, regs->srp, regs->ccs, usp, regs->mof);
++ printk(" r0: %08lx r1: %08lx r2: %08lx r3: %08lx\n",
++ regs->r0, regs->r1, regs->r2, regs->r3);
+
+- raw_printk(" r0: %08lx r1: %08lx r2: %08lx r3: %08lx\n",
+- regs->r0, regs->r1, regs->r2, regs->r3);
++ printk(" r4: %08lx r5: %08lx r6: %08lx r7: %08lx\n",
++ regs->r4, regs->r5, regs->r6, regs->r7);
+
+- raw_printk(" r4: %08lx r5: %08lx r6: %08lx r7: %08lx\n",
+- regs->r4, regs->r5, regs->r6, regs->r7);
++ printk(" r8: %08lx r9: %08lx r10: %08lx r11: %08lx\n",
++ regs->r8, regs->r9, regs->r10, regs->r11);
+
+- raw_printk(" r8: %08lx r9: %08lx r10: %08lx r11: %08lx\n",
+- regs->r8, regs->r9, regs->r10, regs->r11);
++ printk("r12: %08lx r13: %08lx oR10: %08lx acr: %08lx\n",
++ regs->r12, regs->r13, regs->orig_r10, regs->acr);
+
+- raw_printk("r12: %08lx r13: %08lx oR10: %08lx acr: %08lx\n",
+- regs->r12, regs->r13, regs->orig_r10, regs->acr);
+-
+- raw_printk("sp: %08lx\n", regs);
++ printk(" sp: %08lx\n", (unsigned long)regs);
+
+ SUPP_BANK_SEL(BANK_IM);
+ SUPP_REG_RD(RW_MM_CAUSE, i_mmu_cause);
+@@ -52,18 +45,20 @@
+ SUPP_BANK_SEL(BANK_DM);
+ SUPP_REG_RD(RW_MM_CAUSE, d_mmu_cause);
+
+- raw_printk(" Data MMU Cause: %08lx\n", d_mmu_cause);
+- raw_printk("Instruction MMU Cause: %08lx\n", i_mmu_cause);
++ printk(" Data MMU Cause: %08lx\n", d_mmu_cause);
++ printk("Instruction MMU Cause: %08lx\n", i_mmu_cause);
+
+- raw_printk("Process %s (pid: %d, stackpage: %08lx)\n",
+- current->comm, current->pid, (unsigned long) current);
++ printk("Process %s (pid: %d, stackpage=%08lx)\n",
++ current->comm, current->pid, (unsigned long)current);
+
+- /* Show additional info if in kernel-mode. */
++ /*
++ * When in-kernel, we also print out the stack and code at the
++ * time of the fault..
++ */
+ if (!user_mode(regs)) {
+ int i;
+- unsigned char c;
+
+- show_stack(NULL, (unsigned long *) usp);
++ show_stack(NULL, (unsigned long *)usp);
+
+ /*
+ * If the previous stack-dump wasn't a kernel one, dump the
+@@ -72,7 +67,7 @@
+ if (usp != 0)
+ show_stack(NULL, NULL);
+
+- raw_printk("\nCode: ");
++ printk("\nCode: ");
+
+ if (regs->erp < PAGE_OFFSET)
+ goto bad_value;
+@@ -84,76 +79,65 @@
+ * instruction decoding should be in sync at the interesting
+ * point, but small enough to fit on a row. The regs->erp
+ * location is pointed out in a ksymoops-friendly way by
+- * wrapping the byte for that address in parenthesis.
++ * wrapping the byte for that address in parenthesises.
+ */
+ for (i = -12; i < 12; i++) {
+- if (__get_user(c, &((unsigned char *) regs->erp)[i])) {
++ unsigned char c;
++
++ if (__get_user(c, &((unsigned char *)regs->erp)[i])) {
+ bad_value:
+- raw_printk(" Bad IP value.");
++ printk(" Bad IP value.");
+ break;
+ }
+
+ if (i == 0)
+- raw_printk("(%02x) ", c);
++ printk("(%02x) ", c);
+ else
+- raw_printk("%02x ", c);
++ printk("%02x ", c);
+ }
+-
+- raw_printk("\n");
++ printk("\n");
+ }
+ }
+
+-/*
+- * This gets called from entry.S when the watchdog has bitten. Show something
+- * similiar to an Oops dump, and if the kernel if configured to be a nice doggy;
+- * halt instead of reboot.
+- */
+ void
+-watchdog_bite_hook(struct pt_regs *regs)
++arch_enable_nmi(void)
+ {
+-#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
+- local_irq_disable();
+- stop_watchdog();
+- show_registers(regs);
+-
+- while (1)
+- ; /* Do nothing. */
+-#else
+- show_registers(regs);
+-#endif
++ unsigned long flags;
++
++ local_save_flags(flags);
++ flags |= (1 << 30); /* NMI M flag is at bit 30 */
++ local_irq_restore(flags);
+ }
+
+-/* This is normally the Oops function. */
+-void
+-die_if_kernel(const char *str, struct pt_regs *regs, long err)
++extern void (*nmi_handler)(struct pt_regs*);
++void handle_nmi(struct pt_regs* regs)
+ {
+- if (user_mode(regs))
+- return;
++ reg_intr_vect_r_nmi r;
+
+-#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
+- /*
+- * This printout might take too long and could trigger
+- * the watchdog normally. If NICE_DOGGY is set, simply
+- * stop the watchdog during the printout.
+- */
+- stop_watchdog();
+-#endif
+-
+- raw_printk("%s: %04lx\n", str, err & 0xffff);
++ if (nmi_handler)
++ nmi_handler(regs);
+
+- show_registers(regs);
+-
+-#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
+- reset_watchdog();
+-#endif
+-
+- do_exit(SIGSEGV);
++ /* Wait until nmi is no longer active. */
++ do {
++ r = REG_RD(intr_vect, regi_irq, r_nmi);
++ } while (r.ext == regk_intr_vect_on);
+ }
+
+-void arch_enable_nmi(void)
++#ifdef CONFIG_DEBUG_BUGVERBOSE
++void
++handle_BUG(struct pt_regs *regs)
+ {
+- unsigned long flags;
+- local_save_flags(flags);
+- flags |= (1<<30); /* NMI M flag is at bit 30 */
+- local_irq_restore(flags);
++ struct bug_frame f;
++ unsigned char c;
++ unsigned long erp = regs->erp;
++
++ if (__copy_from_user(&f, (const void __user *)(erp - 8), sizeof f))
++ return;
++ if (f.prefix != BUG_PREFIX || f.magic != BUG_MAGIC)
++ return;
++ if (__get_user(c, f.filename))
++ f.filename = "<bad filename>";
++
++ printk("kernel BUG at %s:%d!\n", f.filename, f.line);
+ }
++#endif
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/vcs_hook.c linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/vcs_hook.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/vcs_hook.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/vcs_hook.c 1970-01-01 01:00:00.000000000 +0100
+@@ -1,96 +0,0 @@
+-// $Id: vcs_hook.c,v 1.2 2003/08/12 12:01:06 starvik Exp $
+-//
+-// Call simulator hook. This is the part running in the
+-// simulated program.
+-//
+-
+-#include "vcs_hook.h"
+-#include <stdarg.h>
+-#include <asm/arch-v32/hwregs/reg_map.h>
+-#include <asm/arch-v32/hwregs/intr_vect_defs.h>
+-
+-#define HOOK_TRIG_ADDR 0xb7000000 /* hook cvlog model reg address */
+-#define HOOK_MEM_BASE_ADDR 0xa0000000 /* csp4 (shared mem) base addr */
+-
+-#define HOOK_DATA(offset) ((unsigned*) HOOK_MEM_BASE_ADDR)[offset]
+-#define VHOOK_DATA(offset) ((volatile unsigned*) HOOK_MEM_BASE_ADDR)[offset]
+-#define HOOK_TRIG(funcid) do { *((unsigned *) HOOK_TRIG_ADDR) = funcid; } while(0)
+-#define HOOK_DATA_BYTE(offset) ((unsigned char*) HOOK_MEM_BASE_ADDR)[offset]
+-
+-
+-// ------------------------------------------------------------------ hook_call
+-int hook_call( unsigned id, unsigned pcnt, ...) {
+- va_list ap;
+- unsigned i;
+- unsigned ret;
+-#ifdef USING_SOS
+- PREEMPT_OFF_SAVE();
+-#endif
+-
+- // pass parameters
+- HOOK_DATA(0) = id;
+-
+- /* Have to make hook_print_str a special case since we call with a
+- parameter of byte type. Should perhaps be a separate
+- hook_call. */
+-
+- if (id == hook_print_str) {
+- int i;
+- char *str;
+-
+- HOOK_DATA(1) = pcnt;
+-
+- va_start(ap, pcnt);
+- str = (char*)va_arg(ap,unsigned);
+-
+- for (i=0; i!=pcnt; i++) {
+- HOOK_DATA_BYTE(8+i) = str[i];
+- }
+- HOOK_DATA_BYTE(8+i) = 0; /* null byte */
+- }
+- else {
+- va_start(ap, pcnt);
+- for( i = 1; i <= pcnt; i++ ) HOOK_DATA(i) = va_arg(ap,unsigned);
+- va_end(ap);
+- }
+-
+- // read from mem to make sure data has propagated to memory before trigging
+- *((volatile unsigned*) HOOK_MEM_BASE_ADDR);
+-
+- // trigger hook
+- HOOK_TRIG(id);
+-
+- // wait for call to finish
+- while( VHOOK_DATA(0) > 0 ) {}
+-
+- // extract return value
+-
+- ret = VHOOK_DATA(1);
+-
+-#ifdef USING_SOS
+- PREEMPT_RESTORE();
+-#endif
+- return ret;
+-}
+-
+-unsigned
+-hook_buf(unsigned i)
+-{
+- return (HOOK_DATA(i));
+-}
+-
+-void print_str( const char *str ) {
+- int i;
+- for (i=1; str[i]; i++); /* find null at end of string */
+- hook_call(hook_print_str, i, str);
+-}
+-
+-// --------------------------------------------------------------- CPU_KICK_DOG
+-void CPU_KICK_DOG(void) {
+- (void) hook_call( hook_kick_dog, 0 );
+-}
+-
+-// ------------------------------------------------------- CPU_WATCHDOG_TIMEOUT
+-void CPU_WATCHDOG_TIMEOUT( unsigned t ) {
+- (void) hook_call( hook_dog_timeout, 1, t );
+-}
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/kernel/vcs_hook.h linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/vcs_hook.h
+--- linux-2.6.19.2.old/arch/cris/arch-v32/kernel/vcs_hook.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/kernel/vcs_hook.h 1970-01-01 01:00:00.000000000 +0100
+@@ -1,42 +0,0 @@
+-// $Id: vcs_hook.h,v 1.1 2003/08/12 12:01:06 starvik Exp $
+-//
+-// Call simulator hook functions
+-
+-#ifndef HOOK_H
+-#define HOOK_H
+-
+-int hook_call( unsigned id, unsigned pcnt, ...);
+-
+-enum hook_ids {
+- hook_debug_on = 1,
+- hook_debug_off,
+- hook_stop_sim_ok,
+- hook_stop_sim_fail,
+- hook_alloc_shared,
+- hook_ptr_shared,
+- hook_free_shared,
+- hook_file2shared,
+- hook_cmp_shared,
+- hook_print_params,
+- hook_sim_time,
+- hook_stop_sim,
+- hook_kick_dog,
+- hook_dog_timeout,
+- hook_rand,
+- hook_srand,
+- hook_rand_range,
+- hook_print_str,
+- hook_print_hex,
+- hook_cmp_offset_shared,
+- hook_fill_random_shared,
+- hook_alloc_random_data,
+- hook_calloc_random_data,
+- hook_print_int,
+- hook_print_uint,
+- hook_fputc,
+- hook_init_fd,
+- hook_sbrk
+-
+-};
+-
+-#endif
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/lib/Makefile linux-2.6.19.2.dev/arch/cris/arch-v32/lib/Makefile
+--- linux-2.6.19.2.old/arch/cris/arch-v32/lib/Makefile 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/lib/Makefile 2006-10-11 19:29:20.000000000 +0200
+@@ -2,5 +2,5 @@
+ # Makefile for Etrax-specific library files..
+ #
+
+-lib-y = checksum.o checksumcopy.o string.o usercopy.o memset.o csumcpfruser.o spinlock.o
++lib-y = checksum.o checksumcopy.o string.o usercopy.o memset.o csumcpfruser.o spinlock.o delay.o
+
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/lib/checksum.S linux-2.6.19.2.dev/arch/cris/arch-v32/lib/checksum.S
+--- linux-2.6.19.2.old/arch/cris/arch-v32/lib/checksum.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/lib/checksum.S 2005-08-15 15:53:12.000000000 +0200
+@@ -7,15 +7,15 @@
+
+ .globl csum_partial
+ csum_partial:
+-
++
+ ;; r10 - src
+ ;; r11 - length
+ ;; r12 - checksum
+
+ ;; check for breakeven length between movem and normal word looping versions
+- ;; we also do _NOT_ want to compute a checksum over more than the
++ ;; we also do _NOT_ want to compute a checksum over more than the
+ ;; actual length when length < 40
+-
++
+ cmpu.w 80,$r11
+ blo _word_loop
+ nop
+@@ -24,17 +24,17 @@
+ ;; this overhead is why we have a check above for breakeven length
+ ;; only r0 - r8 have to be saved, the other ones are clobber-able
+ ;; according to the ABI
+-
++
+ subq 9*4,$sp
+ subq 10*4,$r11 ; update length for the first loop
+ movem $r8,[$sp]
+-
++
+ ;; do a movem checksum
+
+ _mloop: movem [$r10+],$r9 ; read 10 longwords
+
+ ;; perform dword checksumming on the 10 longwords
+-
++
+ add.d $r0,$r12
+ addc $r1,$r12
+ addc $r2,$r12
+@@ -48,9 +48,8 @@
+
+ ;; fold the carry into the checksum, to avoid having to loop the carry
+ ;; back into the top
+-
++
+ addc 0,$r12
+- addc 0,$r12 ; do it again, since we might have generated a carry
+
+ subq 10*4,$r11
+ bge _mloop
+@@ -68,34 +67,30 @@
+
+ ;; fold 32-bit checksum into a 16-bit checksum, to avoid carries below.
+ ;; r9 and r13 can be used as temporaries.
+-
++
+ moveq -1,$r9 ; put 0xffff in r9, faster than move.d 0xffff,r9
+ lsrq 16,$r9
+-
++
+ move.d $r12,$r13
+ lsrq 16,$r13 ; r13 = checksum >> 16
+ and.d $r9,$r12 ; checksum = checksum & 0xffff
+ add.d $r13,$r12 ; checksum += r13
+- move.d $r12,$r13 ; do the same again, maybe we got a carry last add
+- lsrq 16,$r13
+- and.d $r9,$r12
+- add.d $r13,$r12
+
+ _no_fold:
+ cmpq 2,$r11
+ blt _no_words
+ nop
+-
++
+ ;; checksum the rest of the words
+-
++
+ subq 2,$r11
+-
++
+ _wloop: subq 2,$r11
+ bge _wloop
+ addu.w [$r10+],$r12
+-
++
+ addq 2,$r11
+-
++
+ _no_words:
+ ;; see if we have one odd byte more
+ cmpq 1,$r11
+@@ -104,7 +99,7 @@
+ ret
+ move.d $r12,$r10
+
+-_do_byte:
++_do_byte:
+ ;; copy and checksum the last byte
+ addu.b [$r10],$r12
+ ret
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/lib/checksumcopy.S linux-2.6.19.2.dev/arch/cris/arch-v32/lib/checksumcopy.S
+--- linux-2.6.19.2.old/arch/cris/arch-v32/lib/checksumcopy.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/lib/checksumcopy.S 2005-08-15 15:53:12.000000000 +0200
+@@ -3,23 +3,23 @@
+ * Copyright (c) 1998, 2001, 2003 Axis Communications AB
+ *
+ * Authors: Bjorn Wesen
+- *
++ *
+ * csum_partial_copy_nocheck(const char *src, char *dst,
+ * int len, unsigned int sum)
+ */
+
+ .globl csum_partial_copy_nocheck
+-csum_partial_copy_nocheck:
+-
++csum_partial_copy_nocheck:
++
+ ;; r10 - src
+ ;; r11 - dst
+ ;; r12 - length
+ ;; r13 - checksum
+
+ ;; check for breakeven length between movem and normal word looping versions
+- ;; we also do _NOT_ want to compute a checksum over more than the
++ ;; we also do _NOT_ want to compute a checksum over more than the
+ ;; actual length when length < 40
+-
++
+ cmpu.w 80,$r12
+ blo _word_loop
+ nop
+@@ -28,19 +28,19 @@
+ ;; this overhead is why we have a check above for breakeven length
+ ;; only r0 - r8 have to be saved, the other ones are clobber-able
+ ;; according to the ABI
+-
++
+ subq 9*4,$sp
+ subq 10*4,$r12 ; update length for the first loop
+ movem $r8,[$sp]
+-
++
+ ;; do a movem copy and checksum
+-
++
+ 1: ;; A failing userspace access (the read) will have this as PC.
+ _mloop: movem [$r10+],$r9 ; read 10 longwords
+ movem $r9,[$r11+] ; write 10 longwords
+
+ ;; perform dword checksumming on the 10 longwords
+-
++
+ add.d $r0,$r13
+ addc $r1,$r13
+ addc $r2,$r13
+@@ -54,9 +54,8 @@
+
+ ;; fold the carry into the checksum, to avoid having to loop the carry
+ ;; back into the top
+-
++
+ addc 0,$r13
+- addc 0,$r13 ; do it again, since we might have generated a carry
+
+ subq 10*4,$r12
+ bge _mloop
+@@ -74,34 +73,30 @@
+
+ ;; fold 32-bit checksum into a 16-bit checksum, to avoid carries below
+ ;; r9 can be used as temporary.
+-
++
+ move.d $r13,$r9
+ lsrq 16,$r9 ; r0 = checksum >> 16
+ and.d 0xffff,$r13 ; checksum = checksum & 0xffff
+ add.d $r9,$r13 ; checksum += r0
+- move.d $r13,$r9 ; do the same again, maybe we got a carry last add
+- lsrq 16,$r9
+- and.d 0xffff,$r13
+- add.d $r9,$r13
+-
++
+ _no_fold:
+ cmpq 2,$r12
+ blt _no_words
+ nop
+-
++
+ ;; copy and checksum the rest of the words
+-
++
+ subq 2,$r12
+-
++
+ 2: ;; A failing userspace access for the read below will have this as PC.
+ _wloop: move.w [$r10+],$r9
+ addu.w $r9,$r13
+ subq 2,$r12
+ bge _wloop
+ move.w $r9,[$r11+]
+-
++
+ addq 2,$r12
+-
++
+ _no_words:
+ ;; see if we have one odd byte more
+ cmpq 1,$r12
+@@ -110,7 +105,7 @@
+ ret
+ move.d $r13,$r10
+
+-_do_byte:
++_do_byte:
+ ;; copy and checksum the last byte
+ 3: ;; A failing userspace access for the read below will have this as PC.
+ move.b [$r10],$r9
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/lib/delay.c linux-2.6.19.2.dev/arch/cris/arch-v32/lib/delay.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/lib/delay.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/lib/delay.c 2006-10-16 01:08:41.000000000 +0200
+@@ -0,0 +1,28 @@
++/*
++ * Precise Delay Loops for ETRAX FS
++ *
++ * Copyright (C) 2006 Axis Communications AB.
++ *
++ */
++
++#include <asm/arch/hwregs/reg_map.h>
++#include <asm/arch/hwregs/reg_rdwr.h>
++#include <asm/arch/hwregs/timer_defs.h>
++#include <linux/types.h>
++#include <linux/delay.h>
++#include <linux/module.h>
++
++/*
++ * On ETRAX FS, we can check the free-running read-only 100MHz timer
++ * getting 32-bit 10ns precision, theoretically good for 42.94967295
++ * seconds. Unsigned arithmetic and careful expression handles
++ * wrapping.
++ */
++
++void cris_delay10ns(u32 n10ns)
++{
++ u32 t0 = REG_RD(timer, regi_timer, r_time);
++ while (REG_RD(timer, regi_timer, r_time) - t0 < n10ns)
++ ;
++}
++EXPORT_SYMBOL(cris_delay10ns);
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/lib/dram_init.S linux-2.6.19.2.dev/arch/cris/arch-v32/lib/dram_init.S
+--- linux-2.6.19.2.old/arch/cris/arch-v32/lib/dram_init.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/lib/dram_init.S 2006-11-28 11:06:19.000000000 +0100
+@@ -1,14 +1,14 @@
+-/* $Id: dram_init.S,v 1.4 2005/04/24 18:48:32 starvik Exp $
+- *
++/* $Id: dram_init.S,v 1.9 2006/11/28 10:06:19 ricardw Exp $
++ *
+ * DRAM/SDRAM initialization - alter with care
+ * This file is intended to be included from other assembler files
+ *
+- * Note: This file may not modify r8 or r9 because they are used to
+- * carry information from the decompresser to the kernel
++ * Note: This file may not modify r8 .. r12 because they are used to
++ * carry information from the decompressor to the kernel
+ *
+ * Copyright (C) 2000-2003 Axis Communications AB
+ *
+- * Authors: Mikael Starvik (starvik@axis.com)
++ * Authors: Mikael Starvik (starvik@axis.com)
+ */
+
+ /* Just to be certain the config file is included, we include it here
+@@ -18,13 +18,13 @@
+
+ #include <asm/arch/hwregs/asm/reg_map_asm.h>
+ #include <asm/arch/hwregs/asm/bif_core_defs_asm.h>
+-
+- ;; WARNING! The registers r8 and r9 are used as parameters carrying
+- ;; information from the decompressor (if the kernel was compressed).
++
++ ;; WARNING! The registers r8 .. r12 are used as parameters carrying
++ ;; information from the decompressor (if the kernel was compressed).
+ ;; They should not be used in the code below.
+
+ ; Refer to BIF MDS for a description of SDRAM initialization
+-
++
+ ; Bank configuration
+ move.d REG_ADDR(bif_core, regi_bif_core, rw_sdram_cfg_grp0), $r0
+ move.d CONFIG_ETRAX_SDRAM_GRP0_CONFIG, $r1
+@@ -33,7 +33,7 @@
+ move.d CONFIG_ETRAX_SDRAM_GRP1_CONFIG, $r1
+ move.d $r1, [$r0]
+
+- ; Calculate value of mrs_data
++ ; Calculate value of mrs_data
+ ; CAS latency = 2 && bus_width = 32 => 0x40
+ ; CAS latency = 3 && bus_width = 32 => 0x60
+ ; CAS latency = 2 && bus_width = 16 => 0x20
+@@ -43,7 +43,7 @@
+ move.d CONFIG_ETRAX_SDRAM_COMMAND, $r2
+ bne _set_timing
+ nop
+-
++
+ move.d 0x40, $r4 ; Assume 32 bits and CAS latency = 2
+ move.d CONFIG_ETRAX_SDRAM_TIMING, $r1
+ and.d 0x07, $r1 ; Get CAS latency
+@@ -51,7 +51,7 @@
+ beq _bw_check
+ nop
+ move.d 0x60, $r4
+-
++
+ _bw_check:
+ ; Assume that group 0 width is equal to group 1. This assumption
+ ; is wrong for a group 1 only hardware (such as the grand old
+@@ -67,23 +67,27 @@
+ move.d CONFIG_ETRAX_SDRAM_TIMING, $r1
+ and.d ~(3 << reg_bif_core_rw_sdram_timing___ref___lsb), $r1
+ move.d REG_ADDR(bif_core, regi_bif_core, rw_sdram_timing), $r0
+- move.d $r1, [$r0]
++ move.d $r1, [$r0]
++
++ ; Wait 200us
++ move.d 10000, $r2
++1: bne 1b
++ subq 1, $r2
+
+ ; Issue NOP command
+ move.d REG_ADDR(bif_core, regi_bif_core, rw_sdram_cmd), $r5
+ moveq regk_bif_core_nop, $r1
+ move.d $r1, [$r5]
+-
++
+ ; Wait 200us
+ move.d 10000, $r2
+ 1: bne 1b
+ subq 1, $r2
+-
++
+ ; Issue initialization command sequence
+- move.d _sdram_commands_start, $r2
+- and.d 0x000fffff, $r2 ; Make sure commands are read from flash
+- move.d _sdram_commands_end, $r3
+- and.d 0x000fffff, $r3
++ lapc.d _sdram_commands_start, $r2 ; position-independent
++ lapc.d _sdram_commands_end, $r3 ; position-independent
++
+ 1: clear.d $r6
+ move.b [$r2+], $r6 ; Load command
+ or.d $r4, $r6 ; Add calculated mrs
+@@ -100,7 +104,7 @@
+ move.d CONFIG_ETRAX_SDRAM_TIMING, $r1
+ move.d REG_ADDR(bif_core, regi_bif_core, rw_sdram_timing), $r0
+ move.d $r1, [$r0]
+-
++
+ ; Initialization finished
+ ba _sdram_commands_end
+ nop
+@@ -116,4 +120,4 @@
+ .byte regk_bif_core_ref ; refresh
+ .byte regk_bif_core_ref ; refresh
+ .byte regk_bif_core_mrs ; mrs
+-_sdram_commands_end:
++_sdram_commands_end:
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/lib/hw_settings.S linux-2.6.19.2.dev/arch/cris/arch-v32/lib/hw_settings.S
+--- linux-2.6.19.2.old/arch/cris/arch-v32/lib/hw_settings.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/lib/hw_settings.S 2006-10-13 14:43:15.000000000 +0200
+@@ -1,25 +1,25 @@
+ /*
+- * $Id: hw_settings.S,v 1.3 2005/04/24 18:36:57 starvik Exp $
+- *
++ * $Id: hw_settings.S,v 1.5 2006/10/13 12:43:15 starvik Exp $
++ *
+ * This table is used by some tools to extract hardware parameters.
+ * The table should be included in the kernel and the decompressor.
+ * Don't forget to update the tools if you change this table.
+ *
+ * Copyright (C) 2001 Axis Communications AB
+ *
+- * Authors: Mikael Starvik (starvik@axis.com)
++ * Authors: Mikael Starvik (starvik@axis.com)
+ */
+
+ #include <asm/arch/hwregs/asm/reg_map_asm.h>
+ #include <asm/arch/hwregs/asm/bif_core_defs_asm.h>
+ #include <asm/arch/hwregs/asm/gio_defs_asm.h>
+-
++
+ .ascii "HW_PARAM_MAGIC" ; Magic number
+ .dword 0xc0004000 ; Kernel start address
+
+ ; Debug port
+ #ifdef CONFIG_ETRAX_DEBUG_PORT0
+- .dword 0
++ .dword 0
+ #elif defined(CONFIG_ETRAX_DEBUG_PORT1)
+ .dword 1
+ #elif defined(CONFIG_ETRAX_DEBUG_PORT2)
+@@ -28,9 +28,9 @@
+ .dword 3
+ #else
+ .dword 4 ; No debug
+-#endif
++#endif
+
+- ; Register values
++ ; Register values
+ .dword REG_ADDR(bif_core, regi_bif_core, rw_grp1_cfg)
+ .dword CONFIG_ETRAX_MEM_GRP1_CONFIG
+ .dword REG_ADDR(bif_core, regi_bif_core, rw_grp2_cfg)
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/lib/memset.c linux-2.6.19.2.dev/arch/cris/arch-v32/lib/memset.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/lib/memset.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/lib/memset.c 2003-07-02 05:00:14.000000000 +0200
+@@ -66,7 +66,7 @@
+
+ {
+ register char *dst __asm__ ("r13") = pdst;
+-
++
+ /* This is NONPORTABLE, but since this whole routine is */
+ /* grossly nonportable that doesn't matter. */
+
+@@ -156,7 +156,7 @@
+ }
+
+ /* Either we directly starts copying, using dword copying
+- in a loop, or we copy as much as possible with 'movem'
++ in a loop, or we copy as much as possible with 'movem'
+ and then the last block (<44 bytes) is copied here.
+ This will work since 'movem' will have updated src,dst,n. */
+
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/lib/nand_init.S linux-2.6.19.2.dev/arch/cris/arch-v32/lib/nand_init.S
+--- linux-2.6.19.2.old/arch/cris/arch-v32/lib/nand_init.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/lib/nand_init.S 2007-01-31 16:52:19.000000000 +0100
+@@ -9,14 +9,16 @@
+ ##
+ ## Some notes about the bug/feature for future reference:
+ ## The bootrom copies the first 127 KB from NAND flash to internal
+-## memory. The problem is that it does a bytewise copy. NAND flashes
+-## does autoincrement on the address so for a 16-bite device each
+-## read/write increases the address by two. So the copy loop in the
++## memory. The problem is that it does a bytewise copy, copying
++## a single byte from the lowest byte of the bus for each address.
++## NAND flashes autoincrement on the address so for a 16 bit device
++## each read/write increases the address by two. So the copy loop in the
+ ## bootrom will discard every second byte. This is solved by inserting
+-## zeroes in every second byte in the first erase block.
++## zeroes in every second byte in the first erase block, in order
++## to get contiguous code.
+ ##
+ ## The bootrom also incorrectly assumes that it can read the flash
+-## linear with only one read command but the flash will actually
++## linearly with only one read command but the flash will actually
+ ## switch between normal area and spare area if you do that so we
+ ## can't trust more than the first 256 bytes.
+ ##
+@@ -29,14 +31,16 @@
+ #include <asm/arch/hwregs/asm/config_defs_asm.h>
+
+ ;; There are 8-bit NAND flashes and 16-bit NAND flashes.
+-;; We need to treat them slightly different.
+-#if CONFIG_ETRAX_FLASH_BUSWIDTH==2
+-#define PAGE_SIZE 256
++;; We need to treat them slightly differently.
++#if CONFIG_ETRAX_NANDFLASH_BUSWIDTH==2
++#define PAGE_SIZE_ADDRESSES 256
+ #else
+-#error 2
+-#define PAGE_SIZE 512
++#define PAGE_SIZE_ADDRESSES 512
+ #endif
++
++;; Block size for erase
+ #define ERASE_BLOCK 16384
++#define PAGE_SIZE_BYTES 512
+
+ ;; GPIO pins connected to NAND flash
+ #define CE 4
+@@ -49,6 +53,7 @@
+ #define NAND_WR_ADDR 0x94000000
+
+ #define READ_CMD 0x00
++#define RESET_CMD 0xFF
+
+ ;; Readability macros
+ #define CSP_MASK \
+@@ -58,6 +63,10 @@
+ REG_STATE(bif_core, rw_grp3_cfg, gated_csp0, rd) | \
+ REG_STATE(bif_core, rw_grp3_cfg, gated_csp1, wr)
+
++;; Normally we initialize GPIO and bus interfaces.
++;; This is strictly not necessary; boot ROM does this for us.
++#define INTERFACE_SETUP (1)
++
+ ;;----------------------------------------------------------------------------
+ ;; Macros to set/clear GPIO bits
+
+@@ -71,16 +80,41 @@
+ move.d $r9, [$r2]
+ .endm
+
++.macro GPIO_SYNC
++;; Originally, we read back data written to nand flash in order
++;; to flush the pipeline. It turned out however, that the real
++;; culprit was a lack of wait states.
++;; This macro remains in the code however in case this conclusion
++;; is wrong too.
++;;
++;; move.d [$r2], $r9 ; read back to flush pipeline
++.endm
++
+ ;;----------------------------------------------------------------------------
++;; Read value from bus to temporary register to sync with previous write
++;; This generates no signal to the NAND flash, since only chip select lines are
++;; pulled out to the chip, and read is not gated with chip select for the write
++;; area.
+
+-nand_boot:
+- ;; Check if nand boot was selected
+- move.d REG_ADDR(config, regi_config, r_bootsel), $r0
+- move.d [$r0], $r0
+- and.d REG_MASK(config, r_bootsel, boot_mode), $r0
+- cmp.d REG_STATE(config, r_bootsel, boot_mode, nand), $r0
+- bne normal_boot ; No NAND boot
+- nop
++.macro BUS_SYNC r
++ move.b [$r1], \r
++.endm
++
++;;----------------------------------------------------------------------------
++;; Delay macro
++;; x = delay = 10*x + 20 ns, e.g. DELAY 25 => 270ns delay, max 63 (650 ns)
++;;(@200Mc)
++;; r is temp reg used
++;; Macro currently not used, save for a rainy day.
++
++.macro DELAY x, r
++ clear.d \r
++ addq (\x),\r ; addq zero-extends its argument
++7: bne 7b
++ subq 1, \r
++.endm
++
++;;----------------------------------------------------------------------------
+
+ copy_nand_to_ram:
+ ;; copy_nand_to_ram
+@@ -88,7 +122,6 @@
+ ;; r10 - destination
+ ;; r11 - source offset
+ ;; r12 - size
+- ;; r13 - Address to jump to after completion
+ ;; Note : r10-r12 are clobbered on return
+ ;; Registers used:
+ ;; r0 - NAND_RD_ADDR
+@@ -96,83 +129,99 @@
+ ;; r2 - reg_gio_rw_pa_dout
+ ;; r3 - reg_gio_r_pa_din
+ ;; r4 - tmp
+- ;; r5 - byte counter within a page
+- ;; r6 - reg_pinmux_rw_pa
+- ;; r7 - reg_gio_rw_pa_oe
+- ;; r8 - reg_bif_core_rw_grp3_cfg
++ ;; r5 - byte counter within a page / tmp2
++ ;; r6 - r_bootsel masked w/ 0x18
++ ;; r7 - n/u
++ ;; r8 - n/u
+ ;; r9 - reg_gio_rw_pa_dout shadow
+- move.d 0x90000000, $r0
+- move.d 0x94000000, $r1
++ move.d NAND_RD_ADDR, $r0
++ move.d NAND_WR_ADDR, $r1
+ move.d REG_ADDR(gio, regi_gio, rw_pa_dout), $r2
+ move.d REG_ADDR(gio, regi_gio, r_pa_din), $r3
+- move.d REG_ADDR(pinmux, regi_pinmux, rw_pa), $r6
+- move.d REG_ADDR(gio, regi_gio, rw_pa_oe), $r7
+- move.d REG_ADDR(bif_core, regi_bif_core, rw_grp3_cfg), $r8
+
+-#if CONFIG_ETRAX_FLASH_BUSWIDTH==2
++#if CONFIG_ETRAX_NANDFLASH_BUSWIDTH==2
+ lsrq 1, $r11
+ #endif
++
++#if INTERFACE_SETUP
++ ;; Set up pinmux
++ move.d REG_ADDR(pinmux, regi_pinmux, rw_pa), $r5
++ move.d [$r5], $r4
++ or.b 0xf0, $r4 ; bits 4,5,6,7
++ move.d $r4, [$r5]
++
+ ;; Set up GPIO
+- move.d [$r2], $r9
+- move.d [$r7], $r4
++ move.d REG_ADDR(gio, regi_gio, rw_pa_oe), $r5
++ move.d [$r5], $r4
+ or.b (1<<ALE) | (1 << CLE) | (1<<CE), $r4
+- move.d $r4, [$r7]
++ move.d $r4, [$r5]
+
++#endif
+ ;; Set up bif
+- move.d [$r8], $r4
+- and.d CSP_MASK, $r4
++ move.d REG_ADDR(bif_core, regi_bif_core, rw_grp3_cfg), $r5
++ move.d CONFIG_ETRAX_MEM_GRP3_CONFIG, $r4 ; wait states
++ and.d ~CSP_MASK, $r4
+ or.d CSP_VAL, $r4
+- move.d $r4, [$r8]
++ move.d $r4, [$r5]
++
++ move.d [$r2], $r9 ; fetch PA DOUT to shadow register
++
++ ;; figure out how many address cycles the flash needs
++ move.d REG_ADDR(config, regi_config, r_bootsel), $r5
++ move.d [$r5], $r6
++ andq 0x18, $r6 ; mask out bs3,4 (00=>3, 08=>4, 18=>5 cycles)
+
+ 1: ;; Copy one page
+ CLR CE
+ SET CLE
++ GPIO_SYNC
+ moveq READ_CMD, $r4
+ move.b $r4, [$r1]
+- moveq 20, $r4
+-2: bne 2b
+- subq 1, $r4
++ BUS_SYNC $r4
+ CLR CLE
+ SET ALE
+- clear.w [$r1] ; Column address = 0
+- move.d $r11, $r4
++ GPIO_SYNC
++ clear.b [$r1] ; Column address = 0
++ move.d $r11, $r4 ; Address
++ lsrq 9, $r4 ; Row address is A9 and up
++ move.b $r4, [$r1] ; Row address byte #0
+ lsrq 8, $r4
+- move.b $r4, [$r1] ; Row address
++ cmpq 0x08, $r6 ; 8 => Z, 0 => C, 18h => NZ,NC
++ bcs 4f ; C (3 cycles) => jump
++ move.b $r4, [$r1] ; Row address byte #1 (DELAY SLOT) (no flagset)
++ beq 3f ; Z (4 cycles) => jump
++ lsrq 8, $r4 ; (DELAY SLOT)
++ move.b $r4, [$r1] ; Row address byte #2 (5 cyc only)
+ lsrq 8, $r4
+- move.b $r4, [$r1] ; Row adddress
+- moveq 20, $r4
+-2: bne 2b
+- subq 1, $r4
++3:
++ move.b $r4, [$r1] ; Row address byte #3 (5 cyc) or #2 (4 cyc)
++4:
++ BUS_SYNC $r4
+ CLR ALE
++ GPIO_SYNC
++
+ 2: move.d [$r3], $r4
+ and.d 1 << BY, $r4
+ beq 2b
+- movu.w PAGE_SIZE, $r5
++ nop
++ movu.w PAGE_SIZE_ADDRESSES, $r5
+ 2: ; Copy one byte/word
+-#if CONFIG_ETRAX_FLASH_BUSWIDTH==2
++#if CONFIG_ETRAX_NANDFLASH_BUSWIDTH==2
+ move.w [$r0], $r4
+ #else
+ move.b [$r0], $r4
+ #endif
+ subq 1, $r5
+ bne 2b
+-#if CONFIG_ETRAX_FLASH_BUSWIDTH==2
++#if CONFIG_ETRAX_NANDFLASH_BUSWIDTH==2
+ move.w $r4, [$r10+]
+- subu.w PAGE_SIZE*2, $r12
+ #else
+ move.b $r4, [$r10+]
+- subu.w PAGE_SIZE, $r12
+ #endif
+- bpl 1b
+- addu.w PAGE_SIZE, $r11
++ subu.w PAGE_SIZE_BYTES, $r12
++ bhi 1b
++ addu.w PAGE_SIZE_ADDRESSES, $r11
+
+- ;; End of copy
+- jump $r13
+- nop
++ SET CE
+
+- ;; This will warn if the code above is too large. If you consider
+- ;; to remove this you don't understand the bug/feature.
+- .org 256
+- .org ERASE_BLOCK
+-
+-normal_boot:
++ ;; End of copy
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/lib/spinlock.S linux-2.6.19.2.dev/arch/cris/arch-v32/lib/spinlock.S
+--- linux-2.6.19.2.old/arch/cris/arch-v32/lib/spinlock.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/lib/spinlock.S 2006-05-24 11:38:43.000000000 +0200
+@@ -1,22 +1,22 @@
+ ;; Core of the spinlock implementation
+ ;;
+-;; Copyright (C) 2004 Axis Communications AB.
++;; Copyright (C) 2004 Axis Communications AB.
+ ;;
+-;; Author: Mikael Starvik
+-
++;; Author: Mikael Starvik
+
++
+ .global cris_spin_lock
+ .global cris_spin_trylock
+
+ .text
+-
++
+ cris_spin_lock:
+ clearf p
+-1: test.d [$r10]
++1: test.b [$r10]
+ beq 1b
+ clearf p
+ ax
+- clear.d [$r10]
++ clear.b [$r10]
+ bcs 1b
+ clearf p
+ ret
+@@ -24,10 +24,10 @@
+
+ cris_spin_trylock:
+ clearf p
+-1: move.d [$r10], $r11
++1: move.b [$r10], $r11
+ ax
+- clear.d [$r10]
++ clear.b [$r10]
+ bcs 1b
+ clearf p
+ ret
+- move.d $r11,$r10
++ movu.b $r11,$r10
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/lib/string.c linux-2.6.19.2.dev/arch/cris/arch-v32/lib/string.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/lib/string.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/lib/string.c 2003-07-02 05:00:14.000000000 +0200
+@@ -48,8 +48,8 @@
+ register char *dst __asm__ ("r13") = pdst;
+ register const char *src __asm__ ("r11") = psrc;
+ register int n __asm__ ("r12") = pn;
+-
+-
++
++
+ /* When src is aligned but not dst, this makes a few extra needless
+ cycles. I believe it would take as many to check that the
+ re-alignment was unnecessary. */
+@@ -117,13 +117,13 @@
+ ;; Restore registers from stack \n\
+ movem [$sp+],$r10"
+
+- /* Outputs */ : "=r" (dst), "=r" (src), "=r" (n)
++ /* Outputs */ : "=r" (dst), "=r" (src), "=r" (n)
+ /* Inputs */ : "0" (dst), "1" (src), "2" (n));
+-
++
+ }
+
+ /* Either we directly starts copying, using dword copying
+- in a loop, or we copy as much as possible with 'movem'
++ in a loop, or we copy as much as possible with 'movem'
+ and then the last block (<44 bytes) is copied here.
+ This will work since 'movem' will have updated src,dst,n. */
+
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/mm/init.c linux-2.6.19.2.dev/arch/cris/arch-v32/mm/init.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/mm/init.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/mm/init.c 2006-10-13 14:43:14.000000000 +0200
+@@ -34,12 +34,12 @@
+ unsigned long mmu_kbase_hi;
+ unsigned long mmu_kbase_lo;
+ unsigned short mmu_page_id;
+-
+- /*
++
++ /*
+ * Make sure the current pgd table points to something sane, even if it
+ * is most probably not used until the next switch_mm.
+ */
+- per_cpu(current_pgd, smp_processor_id()) = init_mm.pgd;
++ per_cpu(current_pgd, smp_processor_id()) = init_mm.pgd;
+
+ #ifdef CONFIG_SMP
+ {
+@@ -65,7 +65,7 @@
+ REG_STATE(mmu, rw_mm_cfg, seg_d, page) |
+ REG_STATE(mmu, rw_mm_cfg, seg_c, linear) |
+ REG_STATE(mmu, rw_mm_cfg, seg_b, linear) |
+-#ifndef CONFIG_ETRAXFS_SIM
++#ifndef CONFIG_ETRAXFS_SIM
+ REG_STATE(mmu, rw_mm_cfg, seg_a, page) |
+ #else
+ REG_STATE(mmu, rw_mm_cfg, seg_a, linear) |
+@@ -115,7 +115,7 @@
+ SUPP_REG_WR(RW_MM_KBASE_HI, mmu_kbase_hi);
+ SUPP_REG_WR(RW_MM_KBASE_LO, mmu_kbase_lo);
+ SUPP_REG_WR(RW_MM_TLB_HI, mmu_page_id);
+-
++
+ /* Update the data MMU. */
+ SUPP_BANK_SEL(BANK_DM);
+ SUPP_REG_WR(RW_MM_CFG, mmu_config);
+@@ -125,7 +125,7 @@
+
+ SPEC_REG_WR(SPEC_REG_PID, 0);
+
+- /*
++ /*
+ * The MMU has been enabled ever since head.S but just to make it
+ * totally obvious enable it here as well.
+ */
+@@ -133,7 +133,7 @@
+ SUPP_REG_WR(RW_GC_CFG, 0xf); /* IMMU, DMMU, ICache, DCache on */
+ }
+
+-void __init
++void __init
+ paging_init(void)
+ {
+ int i;
+@@ -160,13 +160,13 @@
+ for (i = 1; i < MAX_NR_ZONES; i++)
+ zones_size[i] = 0;
+
+- /*
++ /*
+ * Use free_area_init_node instead of free_area_init, because it is
+- * designed for systems where the DRAM starts at an address
++ * designed for systems where the DRAM starts at an address
+ * substantially higher than 0, like us (we start at PAGE_OFFSET). This
+ * saves space in the mem_map page array.
+ */
+ free_area_init_node(0, &contig_page_data, zones_size, PAGE_OFFSET >> PAGE_SHIFT, 0);
+-
++
+ mem_map = contig_page_data.node_mem_map;
+ }
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/mm/intmem.c linux-2.6.19.2.dev/arch/cris/arch-v32/mm/intmem.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/mm/intmem.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/mm/intmem.c 2006-01-02 12:27:04.000000000 +0100
+@@ -27,7 +27,7 @@
+ {
+ static int initiated = 0;
+ if (!initiated) {
+- struct intmem_allocation* alloc =
++ struct intmem_allocation* alloc =
+ (struct intmem_allocation*)kmalloc(sizeof *alloc, GFP_KERNEL);
+ INIT_LIST_HEAD(&intmem_allocations);
+ intmem_virtual = ioremap(MEM_INTMEM_START, MEM_INTMEM_SIZE);
+@@ -44,7 +44,7 @@
+ struct intmem_allocation* allocation;
+ struct intmem_allocation* tmp;
+ void* ret = NULL;
+-
++
+ preempt_disable();
+ crisv32_intmem_init();
+
+@@ -55,7 +55,7 @@
+ if (allocation->status == STATUS_FREE &&
+ allocation->size >= size + alignment) {
+ if (allocation->size > size + alignment) {
+- struct intmem_allocation* alloc =
++ struct intmem_allocation* alloc =
+ (struct intmem_allocation*)
+ kmalloc(sizeof *alloc, GFP_ATOMIC);
+ alloc->status = STATUS_FREE;
+@@ -73,13 +73,13 @@
+ allocation->offset += alignment;
+ list_add_tail(&tmp->entry, &allocation->entry);
+ }
+- }
++ }
+ allocation->status = STATUS_ALLOCATED;
+ allocation->size = size;
+ ret = (void*)((int)intmem_virtual + allocation->offset);
+ }
+ }
+- preempt_enable();
++ preempt_enable();
+ return ret;
+ }
+
+@@ -96,22 +96,22 @@
+
+ list_for_each_entry_safe(allocation, tmp, &intmem_allocations, entry) {
+ if (allocation->offset == (int)(addr - intmem_virtual)) {
+- struct intmem_allocation* prev =
+- list_entry(allocation->entry.prev,
++ struct intmem_allocation* prev =
++ list_entry(allocation->entry.prev,
+ struct intmem_allocation, entry);
+- struct intmem_allocation* next =
+- list_entry(allocation->entry.next,
++ struct intmem_allocation* next =
++ list_entry(allocation->entry.next,
+ struct intmem_allocation, entry);
+
+ allocation->status = STATUS_FREE;
+ /* Join with prev and/or next if also free */
+- if (prev->status == STATUS_FREE) {
++ if ((prev != &intmem_allocations) && (prev->status == STATUS_FREE)) {
+ prev->size += allocation->size;
+ list_del(&allocation->entry);
+ kfree(allocation);
+ allocation = prev;
+ }
+- if (next->status == STATUS_FREE) {
++ if ((next != &intmem_allocations) && (next->status == STATUS_FREE)) {
+ allocation->size += next->size;
+ list_del(&next->entry);
+ kfree(next);
+@@ -125,13 +125,13 @@
+
+ void* crisv32_intmem_phys_to_virt(unsigned long addr)
+ {
+- return (void*)(addr - MEM_INTMEM_START+
++ return (void*)(addr - MEM_INTMEM_START+
+ (unsigned long)intmem_virtual);
+ }
+
+ unsigned long crisv32_intmem_virt_to_phys(void* addr)
+ {
+- return (unsigned long)((unsigned long )addr -
++ return (unsigned long)((unsigned long )addr -
+ (unsigned long)intmem_virtual + MEM_INTMEM_START);
+ }
+
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/mm/mmu.S linux-2.6.19.2.dev/arch/cris/arch-v32/mm/mmu.S
+--- linux-2.6.19.2.old/arch/cris/arch-v32/mm/mmu.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/mm/mmu.S 2006-08-04 10:10:20.000000000 +0200
+@@ -1,3 +1,5 @@
++; WARNING : The refill handler has been modified, see below !!!
++
+ /*
+ * Copyright (C) 2003 Axis Communications AB
+ *
+@@ -9,7 +11,7 @@
+
+ #include <asm/page.h>
+ #include <asm/pgtable.h>
+-
++
+ ; Save all register. Must save in same order as struct pt_regs.
+ .macro SAVE_ALL
+ subq 12, $sp
+@@ -29,11 +31,11 @@
+ subq 14*4, $sp
+ movem $r13, [$sp]
+ subq 4, $sp
+- move.d $r10, [$sp]
++ move.d $r10, [$sp]
+ .endm
+
+ ; Bus fault handler. Extracts relevant information and calls mm subsystem
+-; to handle the fault.
++; to handle the fault.
+ .macro MMU_BUS_FAULT_HANDLER handler, mmu, we, ex
+ .globl \handler
+ \handler:
+@@ -45,7 +47,7 @@
+ orq \ex << 1, $r13 ; execute?
+ move $s3, $r10 ; rw_mm_cause
+ and.d ~8191, $r10 ; Get faulting page start address
+-
++
+ jsr do_page_fault
+ nop
+ ba ret_from_intr
+@@ -59,15 +61,28 @@
+ ; The code below handles case 1 and calls the mm subsystem for case 2 and 3.
+ ; Do not touch this code without very good reasons and extensive testing.
+ ; Note that the code is optimized to minimize stalls (makes the code harder
+-; to read).
++; to read).
++;
++; WARNING !!!
++; Modified by Mikael Asker 060725: added a workaround for strange TLB
++; behavior. If the same PTE is present in more than one set, the TLB
++; doesn't recognize it and we get stuck in a loop of refill exceptions.
++; The workaround detects such loops and exits them by flushing
++; the TLB contents. The problem and workaround were verified
++; in VCS by Mikael Starvik.
+ ;
+ ; Each page is 8 KB. Each PMD holds 8192/4 PTEs (each PTE is 4 bytes) so each
+-; PMD holds 16 MB of virtual memory.
++; PMD holds 16 MB of virtual memory.
+ ; Bits 0-12 : Offset within a page
+ ; Bits 13-23 : PTE offset within a PMD
+ ; Bits 24-31 : PMD offset within the PGD
+-
++
+ .macro MMU_REFILL_HANDLER handler, mmu
++ .data
++1: .dword 0 ; refill_count
++ ; == 0 <=> last_refill_cause is invalid
++2: .dword 0 ; last_refill_cause
++ .text
+ .globl \handler
+ \handler:
+ subq 4, $sp
+@@ -76,40 +91,88 @@
+ subq 4, $sp
+ move \mmu, $srs ; Select MMU support register bank
+ move.d $acr, [$sp]
+- subq 4, $sp
+- move.d $r0, [$sp]
+-#ifdef CONFIG_SMP
++ subq 12, $sp
++ move.d 1b, $acr ; Point to refill_count
++ movem $r2, [$sp]
++
++ test.d [$acr] ; refill_count == 0 ?
++ beq 5f ; yes, last_refill_cause is invalid
++ move.d $acr, $r1
++
++ ; last_refill_cause is valid, investigate cause
++ addq 4, $r1 ; Point to last_refill_cause
++ move $s3, $r0 ; Get rw_mm_cause
++ move.d [$r1], $r2 ; Get last_refill_cause
++ cmp.d $r0, $r2 ; rw_mm_cause == last_refill_cause ?
++ beq 6f ; yes, increment count
++ moveq 1, $r2
++
++ ; rw_mm_cause != last_refill_cause
++ move.d $r2, [$acr] ; refill_count = 1
++ move.d $r0, [$r1] ; last_refill_cause = rw_mm_cause
++
++3: ; Probably not in a loop, continue normal processing
++#ifdef CONFIG_SMP
+ move $s7, $acr ; PGD
+ #else
+ move.d per_cpu__current_pgd, $acr ; PGD
+ #endif
+ ; Look up PMD in PGD
+- move $s3, $r0 ; rw_mm_cause
+ lsrq 24, $r0 ; Get PMD index into PGD (bit 24-31)
+ move.d [$acr], $acr ; PGD for the current process
+ addi $r0.d, $acr, $acr
+ move $s3, $r0 ; rw_mm_cause
+ move.d [$acr], $acr ; Get PMD
+- beq 1f
++ beq 8f
+ ; Look up PTE in PMD
+ lsrq PAGE_SHIFT, $r0
+ and.w PAGE_MASK, $acr ; Remove PMD flags
+ and.d 0x7ff, $r0 ; Get PTE index into PMD (bit 13-23)
+ addi $r0.d, $acr, $acr
+ move.d [$acr], $acr ; Get PTE
+- beq 2f
+- move.d [$sp+], $r0 ; Pop r0 in delayslot
++ beq 9f
++ movem [$sp], $r2 ; Restore r0-r2 in delay slot
++ addq 12, $sp
+ ; Store in TLB
+ move $acr, $s5
+- ; Return
++4: ; Return
+ move.d [$sp+], $acr
+ move [$sp], $srs
+ addq 4, $sp
+ rete
+ rfe
+-1: ; PMD missing, let the mm subsystem fix it up.
+- move.d [$sp+], $r0 ; Pop r0
+-2: ; PTE missing, let the mm subsystem fix it up.
++
++5: ; last_refill_cause is invalid
++ moveq 1, $r2
++ addq 4, $r1 ; Point to last_refill_cause
++ move.d $r2, [$acr] ; refill_count = 1
++ move $s3, $r0 ; Get rw_mm_cause
++ ba 3b ; Continue normal processing
++ move.d $r0,[$r1] ; last_refill_cause = rw_mm_cause
++
++6: ; rw_mm_cause == last_refill_cause
++ move.d [$acr], $r2 ; Get refill_count
++ cmpq 4, $r2 ; refill_count > 4 ?
++ bhi 7f ; yes
++ addq 1, $r2 ; refill_count++
++ ba 3b ; Continue normal processing
++ move.d $r2, [$acr]
++
++7: ; refill_count > 4, error
++ subq 4, $sp
++ move $srp, [$sp]
++ jsr __flush_tlb_all
++ move.d $acr, $r0 ; Save pointer to refill_count
++ move [$sp+], $srp
++ clear.d [$r0] ; refill_count = 0
++ movem [$sp], $r2
++ ba 4b ; Return
++ addq 12, $sp
++
++8: ; PMD missing, let the mm subsystem fix it up.
++ movem [$sp], $r2 ; Restore r0-r2
++9: ; PTE missing, let the mm subsystem fix it up.
++ addq 12, $sp
+ move.d [$sp+], $acr
+ move [$sp], $srs
+ addq 4, $sp
+@@ -128,7 +191,7 @@
+ ba ret_from_intr
+ nop
+ .endm
+-
++
+ ; This is the MMU bus fault handlers.
+
+ MMU_REFILL_HANDLER i_mmu_refill, 1
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/mm/tlb.c linux-2.6.19.2.dev/arch/cris/arch-v32/mm/tlb.c
+--- linux-2.6.19.2.old/arch/cris/arch-v32/mm/tlb.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/mm/tlb.c 2006-08-07 12:06:44.000000000 +0200
+@@ -2,7 +2,7 @@
+ * Low level TLB handling.
+ *
+ * Copyright (C) 2000-2003, Axis Communications AB.
+- *
++ *
+ * Authors: Bjorn Wesen <bjornw@axis.com>
+ * Tobias Anderberg <tobiasa@axis.com>, CRISv32 port.
+ */
+@@ -79,7 +79,7 @@
+ void
+ __flush_tlb_mm(struct mm_struct *mm)
+ {
+- int i;
++ int i;
+ int mmu;
+ unsigned long flags;
+ unsigned long page_id;
+@@ -90,7 +90,7 @@
+
+ if (page_id == NO_CONTEXT)
+ return;
+-
++
+ /* Mark the TLB entries that match the page_id as invalid. */
+ local_save_flags(flags);
+ local_irq_disable();
+@@ -99,15 +99,15 @@
+ SUPP_BANK_SEL(mmu);
+ for (i = 0; i < NUM_TLB_ENTRIES; i++) {
+ UPDATE_TLB_SEL_IDX(i);
+-
++
+ /* Get the page_id */
+ SUPP_REG_RD(RW_MM_TLB_HI, tlb_hi);
+
+ /* Check if the page_id match. */
+ if ((tlb_hi & 0xff) == page_id) {
+ mmu_tlb_hi = (REG_FIELD(mmu, rw_mm_tlb_hi, pid,
+- INVALID_PAGEID)
+- | REG_FIELD(mmu, rw_mm_tlb_hi, vpn,
++ INVALID_PAGEID)
++ | REG_FIELD(mmu, rw_mm_tlb_hi, vpn,
+ i & 0xf));
+
+ UPDATE_TLB_HILO(mmu_tlb_hi, 0);
+@@ -135,7 +135,7 @@
+ return;
+
+ addr &= PAGE_MASK;
+-
++
+ /*
+ * Invalidate those TLB entries that match both the mm context and the
+ * requested virtual address.
+@@ -150,11 +150,11 @@
+ SUPP_REG_RD(RW_MM_TLB_HI, tlb_hi);
+
+ /* Check if page_id and address matches */
+- if (((tlb_hi & 0xff) == page_id) &&
++ if (((tlb_hi & 0xff) == page_id) &&
+ ((tlb_hi & PAGE_MASK) == addr)) {
+ mmu_tlb_hi = REG_FIELD(mmu, rw_mm_tlb_hi, pid,
+ INVALID_PAGEID) | addr;
+-
++
+ UPDATE_TLB_HILO(mmu_tlb_hi, 0);
+ }
+ }
+@@ -178,33 +178,35 @@
+ static DEFINE_SPINLOCK(mmu_context_lock);
+
+ /* Called in schedule() just before actually doing the switch_to. */
+-void
++void
+ switch_mm(struct mm_struct *prev, struct mm_struct *next,
+ struct task_struct *tsk)
+-{
+- int cpu = smp_processor_id();
+-
+- /* Make sure there is a MMU context. */
+- spin_lock(&mmu_context_lock);
+- get_mmu_context(next);
+- cpu_set(cpu, next->cpu_vm_mask);
+- spin_unlock(&mmu_context_lock);
+-
+- /*
+- * Remember the pgd for the fault handlers. Keep a seperate copy of it
+- * because current and active_mm might be invalid at points where
+- * there's still a need to derefer the pgd.
+- */
+- per_cpu(current_pgd, cpu) = next->pgd;
+-
+- /* Switch context in the MMU. */
+- if (tsk && task_thread_info(tsk))
+- {
+- SPEC_REG_WR(SPEC_REG_PID, next->context.page_id | task_thread_info(tsk)->tls);
+- }
+- else
+- {
+- SPEC_REG_WR(SPEC_REG_PID, next->context.page_id);
+- }
++{
++ if (prev != next) {
++ int cpu = smp_processor_id();
++
++ /* Make sure there is a MMU context. */
++ spin_lock(&mmu_context_lock);
++ get_mmu_context(next);
++ cpu_set(cpu, next->cpu_vm_mask);
++ spin_unlock(&mmu_context_lock);
++
++ /*
++ * Remember the pgd for the fault handlers. Keep a seperate copy of it
++ * because current and active_mm might be invalid at points where
++ * there's still a need to derefer the pgd.
++ */
++ per_cpu(current_pgd, cpu) = next->pgd;
++
++ /* Switch context in the MMU. */
++ if (tsk && task_thread_info(tsk))
++ {
++ SPEC_REG_WR(SPEC_REG_PID, next->context.page_id | task_thread_info(tsk)->tls);
++ }
++ else
++ {
++ SPEC_REG_WR(SPEC_REG_PID, next->context.page_id);
++ }
++ }
+ }
+
+diff -urN linux-2.6.19.2.old/arch/cris/arch-v32/vmlinux.lds.S linux-2.6.19.2.dev/arch/cris/arch-v32/vmlinux.lds.S
+--- linux-2.6.19.2.old/arch/cris/arch-v32/vmlinux.lds.S 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/arch-v32/vmlinux.lds.S 2006-10-13 14:43:11.000000000 +0200
+@@ -5,11 +5,11 @@
+ * script. It is for example quite vital that all generated sections
+ * that are used are actually named here, otherwise the linker will
+ * put them at the end, where the init stuff is which is FREED after
+- * the kernel has booted.
+- */
++ * the kernel has booted.
++ */
+
+ #include <asm-generic/vmlinux.lds.h>
+-
++
+ jiffies = jiffies_64;
+ SECTIONS
+ {
+@@ -20,7 +20,7 @@
+ /* The boot section is only necessary until the VCS top level testbench */
+ /* includes both flash and DRAM. */
+ .boot : { *(.boot) }
+-
++
+ . = DRAM_VIRTUAL_BASE + 0x4000; /* See head.S and pages reserved at the start. */
+
+ _text = .; /* Text and read-only data. */
+@@ -35,7 +35,7 @@
+ *(.text.__*)
+ }
+
+- _etext = . ; /* End of text section. */
++ _etext = . ; /* End of text section. */
+ __etext = .;
+
+ . = ALIGN(4); /* Exception table. */
+@@ -59,7 +59,7 @@
+
+ . = ALIGN(8192); /* Init code and data. */
+ __init_begin = .;
+- .init.text : {
++ .init.text : {
+ _sinittext = .;
+ *(.init.text)
+ _einittext = .;
+@@ -81,7 +81,7 @@
+ *(.initcall5.init);
+ *(.initcall6.init);
+ *(.initcall7.init);
+- __initcall_end = .;
++ __initcall_end = .;
+ }
+
+ .con_initcall.init : {
+@@ -94,20 +94,20 @@
+ __per_cpu_start = .;
+ .data.percpu : { *(.data.percpu) }
+ __per_cpu_end = .;
+-
++
+ .init.ramfs : {
+ __initramfs_start = .;
+ *(.init.ramfs)
+ __initramfs_end = .;
+- /*
++ /*
+ * We fill to the next page, so we can discard all init
+ * pages without needing to consider what payload might be
+ * appended to the kernel image.
+ */
+- FILL (0);
++ FILL (0);
+ . = ALIGN (8192);
+ }
+-
++
+ __vmlinux_end = .; /* Last address of the physical file. */
+ __init_end = .;
+
+diff -urN linux-2.6.19.2.old/arch/cris/kernel/crisksyms.c linux-2.6.19.2.dev/arch/cris/kernel/crisksyms.c
+--- linux-2.6.19.2.old/arch/cris/kernel/crisksyms.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/kernel/crisksyms.c 2006-11-03 13:49:17.000000000 +0100
+@@ -9,7 +9,7 @@
+ #include <linux/kernel.h>
+ #include <linux/string.h>
+ #include <linux/tty.h>
+-
++
+ #include <asm/semaphore.h>
+ #include <asm/processor.h>
+ #include <asm/uaccess.h>
+@@ -28,6 +28,7 @@
+ extern void __ashldi3(void);
+ extern void __ashrdi3(void);
+ extern void __lshrdi3(void);
++extern void __negdi2(void);
+ extern void iounmap(volatile void * __iomem);
+
+ /* Platform dependent support */
+@@ -35,18 +36,7 @@
+ EXPORT_SYMBOL(get_cmos_time);
+ EXPORT_SYMBOL(loops_per_usec);
+
+-/* String functions */
+-EXPORT_SYMBOL(memcmp);
+-EXPORT_SYMBOL(memmove);
+-EXPORT_SYMBOL(strstr);
+-EXPORT_SYMBOL(strcpy);
+-EXPORT_SYMBOL(strchr);
+-EXPORT_SYMBOL(strcmp);
+-EXPORT_SYMBOL(strlen);
+-EXPORT_SYMBOL(strcat);
+-EXPORT_SYMBOL(strncat);
+-EXPORT_SYMBOL(strncmp);
+-EXPORT_SYMBOL(strncpy);
++EXPORT_SYMBOL(ktime_get_ts);
+
+ /* Math functions */
+ EXPORT_SYMBOL(__Udiv);
+@@ -56,6 +46,7 @@
+ EXPORT_SYMBOL(__ashldi3);
+ EXPORT_SYMBOL(__ashrdi3);
+ EXPORT_SYMBOL(__lshrdi3);
++EXPORT_SYMBOL(__negdi2);
+
+ /* Memory functions */
+ EXPORT_SYMBOL(__ioremap);
+@@ -85,4 +76,4 @@
+ EXPORT_SYMBOL(del_fast_timer);
+ EXPORT_SYMBOL(schedule_usleep);
+ #endif
+-
++EXPORT_SYMBOL(csum_partial);
+diff -urN linux-2.6.19.2.old/arch/cris/kernel/irq.c linux-2.6.19.2.dev/arch/cris/kernel/irq.c
+--- linux-2.6.19.2.old/arch/cris/kernel/irq.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/kernel/irq.c 2007-01-09 10:29:20.000000000 +0100
+@@ -92,14 +92,16 @@
+ asmlinkage void do_IRQ(int irq, struct pt_regs * regs)
+ {
+ unsigned long sp;
++ struct pt_regs *old_regs = set_irq_regs(regs);
+ irq_enter();
+ sp = rdsp();
+ if (unlikely((sp & (PAGE_SIZE - 1)) < (PAGE_SIZE/8))) {
+ printk("do_IRQ: stack overflow: %lX\n", sp);
+ show_stack(NULL, (unsigned long *)sp);
+ }
+- __do_IRQ(irq, regs);
++ __do_IRQ(irq);
+ irq_exit();
++ set_irq_regs(old_regs);
+ }
+
+ void weird_irq(void)
+diff -urN linux-2.6.19.2.old/arch/cris/kernel/process.c linux-2.6.19.2.dev/arch/cris/kernel/process.c
+--- linux-2.6.19.2.old/arch/cris/kernel/process.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/kernel/process.c 2006-06-25 17:00:10.000000000 +0200
+@@ -1,4 +1,4 @@
+-/* $Id: process.c,v 1.21 2005/03/04 08:16:17 starvik Exp $
++/* $Id: process.c,v 1.26 2006/06/25 15:00:10 starvik Exp $
+ *
+ * linux/arch/cris/kernel/process.c
+ *
+@@ -8,6 +8,21 @@
+ * Authors: Bjorn Wesen (bjornw@axis.com)
+ *
+ * $Log: process.c,v $
++ * Revision 1.26 2006/06/25 15:00:10 starvik
++ * Merge of Linux 2.6.17
++ *
++ * Revision 1.25 2006/03/22 09:56:56 starvik
++ * Merge of Linux 2.6.16
++ *
++ * Revision 1.24 2006/01/04 06:09:48 starvik
++ * Merge of Linux 2.6.15
++ *
++ * Revision 1.23 2005/08/29 07:32:19 starvik
++ * Merge of 2.6.13
++ *
++ * Revision 1.22 2005/08/18 08:33:18 starvik
++ * Corrected signature of machine_restart
++ *
+ * Revision 1.21 2005/03/04 08:16:17 starvik
+ * Merge of Linux 2.6.11.
+ *
+@@ -195,12 +210,18 @@
+ */
+ void (*pm_idle)(void);
+
++extern void default_idle(void);
++
++void (*pm_power_off)(void);
++EXPORT_SYMBOL(pm_power_off);
++
+ /*
+ * The idle thread. There's no useful work to be
+ * done, so just try to conserve power and have a
+ * low exit latency (ie sit in a loop waiting for
+ * somebody to say that they'd like to reschedule)
+ */
++
+ void cpu_idle (void)
+ {
+ /* endless idle loop with no priority at all */
+diff -urN linux-2.6.19.2.old/arch/cris/kernel/profile.c linux-2.6.19.2.dev/arch/cris/kernel/profile.c
+--- linux-2.6.19.2.old/arch/cris/kernel/profile.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/kernel/profile.c 2004-10-05 08:22:44.000000000 +0200
+@@ -42,7 +42,7 @@
+ return count;
+ }
+
+-static ssize_t
++static ssize_t
+ write_cris_profile(struct file *file, const char __user *buf,
+ size_t count, loff_t *ppos)
+ {
+diff -urN linux-2.6.19.2.old/arch/cris/kernel/ptrace.c linux-2.6.19.2.dev/arch/cris/kernel/ptrace.c
+--- linux-2.6.19.2.old/arch/cris/kernel/ptrace.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/kernel/ptrace.c 2006-03-23 15:54:02.000000000 +0100
+@@ -8,6 +8,9 @@
+ * Authors: Bjorn Wesen
+ *
+ * $Log: ptrace.c,v $
++ * Revision 1.11 2006/03/23 14:54:02 starvik
++ * Corrected signal handling.
++ *
+ * Revision 1.10 2004/09/22 11:50:01 orjanf
+ * * Moved get_reg/put_reg to arch-specific files.
+ * * Added functions to access debug registers (CRISv32).
+@@ -82,13 +85,13 @@
+ /* notification of userspace execution resumption
+ * - triggered by current->work.notify_resume
+ */
+-extern int do_signal(int canrestart, sigset_t *oldset, struct pt_regs *regs);
++extern int do_signal(int canrestart, struct pt_regs *regs);
+
+
+-void do_notify_resume(int canrestart, sigset_t *oldset, struct pt_regs *regs,
++void do_notify_resume(int canrestart, struct pt_regs *regs,
+ __u32 thread_info_flags )
+ {
+ /* deal with pending signal delivery */
+ if (thread_info_flags & _TIF_SIGPENDING)
+- do_signal(canrestart,oldset,regs);
++ do_signal(canrestart,regs);
+ }
+diff -urN linux-2.6.19.2.old/arch/cris/kernel/semaphore.c linux-2.6.19.2.dev/arch/cris/kernel/semaphore.c
+--- linux-2.6.19.2.old/arch/cris/kernel/semaphore.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/kernel/semaphore.c 2005-10-31 09:48:05.000000000 +0100
+@@ -4,7 +4,7 @@
+ */
+
+ #include <linux/sched.h>
+-#include <linux/init.h>
++#include <asm/semaphore.h>
+ #include <asm/semaphore-helper.h>
+
+ /*
+@@ -95,6 +95,7 @@
+ tsk->state = TASK_RUNNING; \
+ remove_wait_queue(&sem->wait, &wait);
+
++
+ void __sched __down(struct semaphore * sem)
+ {
+ DOWN_VAR
+diff -urN linux-2.6.19.2.old/arch/cris/kernel/setup.c linux-2.6.19.2.dev/arch/cris/kernel/setup.c
+--- linux-2.6.19.2.old/arch/cris/kernel/setup.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/kernel/setup.c 2007-01-09 10:29:20.000000000 +0100
+@@ -18,7 +18,7 @@
+ #include <linux/screen_info.h>
+ #include <linux/utsname.h>
+ #include <linux/pfn.h>
+-
++#include <linux/cpu.h>
+ #include <asm/setup.h>
+
+ /*
+@@ -36,6 +36,8 @@
+
+ extern unsigned long romfs_start, romfs_length, romfs_in_flash; /* from head.S */
+
++static struct cpu cpu_devices[NR_CPUS];
++
+ extern void show_etrax_copyright(void); /* arch-vX/kernel/setup.c */
+
+ /* This mainly sets up the memory area, and can be really confusing.
+@@ -187,4 +189,14 @@
+ .show = show_cpuinfo,
+ };
+
++static int __init topology_init(void)
++{
++ int i;
++
++ for_each_possible_cpu(i) {
++ return register_cpu(&cpu_devices[i], i);
++ }
++}
++
++subsys_initcall(topology_init);
+
+diff -urN linux-2.6.19.2.old/arch/cris/kernel/sys_cris.c linux-2.6.19.2.dev/arch/cris/kernel/sys_cris.c
+--- linux-2.6.19.2.old/arch/cris/kernel/sys_cris.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/kernel/sys_cris.c 2007-01-09 10:29:20.000000000 +0100
+@@ -1,4 +1,4 @@
+-/* $Id: sys_cris.c,v 1.6 2004/03/11 11:38:40 starvik Exp $
++/* $Id: sys_cris.c,v 1.7 2007/01/09 09:29:20 starvik Exp $
+ *
+ * linux/arch/cris/kernel/sys_cris.c
+ *
+@@ -172,3 +172,4 @@
+ return -ENOSYS;
+ }
+ }
++
+diff -urN linux-2.6.19.2.old/arch/cris/kernel/time.c linux-2.6.19.2.dev/arch/cris/kernel/time.c
+--- linux-2.6.19.2.old/arch/cris/kernel/time.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/kernel/time.c 2007-01-09 10:29:20.000000000 +0100
+@@ -1,4 +1,4 @@
+-/* $Id: time.c,v 1.18 2005/03/04 08:16:17 starvik Exp $
++/* $Id: time.c,v 1.23 2007/01/09 09:29:20 starvik Exp $
+ *
+ * linux/arch/cris/kernel/time.c
+ *
+@@ -172,10 +172,6 @@
+ mon = CMOS_READ(RTC_MONTH);
+ year = CMOS_READ(RTC_YEAR);
+
+- printk(KERN_DEBUG
+- "rtc: sec 0x%x min 0x%x hour 0x%x day 0x%x mon 0x%x year 0x%x\n",
+- sec, min, hour, day, mon, year);
+-
+ BCD_TO_BIN(sec);
+ BCD_TO_BIN(min);
+ BCD_TO_BIN(hour);
+@@ -208,11 +204,11 @@
+ cris_do_profile(struct pt_regs* regs)
+ {
+
+-#if CONFIG_SYSTEM_PROFILER
++#ifdef CONFIG_SYSTEM_PROFILER
+ cris_profile_sample(regs);
+ #endif
+
+-#if CONFIG_PROFILING
++#ifdef CONFIG_PROFILING
+ profile_tick(CPU_PROFILING, regs);
+ #endif
+ }
+@@ -222,10 +218,15 @@
+ */
+ unsigned long long sched_clock(void)
+ {
+- return (unsigned long long)jiffies * (1000000000 / HZ);
++ unsigned long long ns;
++
++ ns = jiffies;
++ ns *= 1000000000 / HZ;
++ ns += get_ns_in_jiffie();
++ return ns;
+ }
+
+-static int
++static int
+ __init init_udelay(void)
+ {
+ loops_per_usec = (loops_per_jiffy * HZ) / 1000000;
+diff -urN linux-2.6.19.2.old/arch/cris/kernel/traps.c linux-2.6.19.2.dev/arch/cris/kernel/traps.c
+--- linux-2.6.19.2.old/arch/cris/kernel/traps.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/kernel/traps.c 2006-12-11 14:04:23.000000000 +0100
+@@ -1,66 +1,78 @@
+-/* $Id: traps.c,v 1.11 2005/01/24 16:03:19 orjanf Exp $
+- *
++/*
+ * linux/arch/cris/traps.c
+ *
+- * Here we handle the break vectors not used by the system call
+- * mechanism, as well as some general stack/register dumping
++ * Here we handle the break vectors not used by the system call
++ * mechanism, as well as some general stack/register dumping
+ * things.
+- *
+- * Copyright (C) 2000-2002 Axis Communications AB
++ *
++ * Copyright (C) 2000-2006 Axis Communications AB
+ *
+ * Authors: Bjorn Wesen
+- * Hans-Peter Nilsson
++ * Hans-Peter Nilsson
+ *
+ */
+
+ #include <linux/init.h>
+ #include <linux/module.h>
++
+ #include <asm/pgtable.h>
+ #include <asm/uaccess.h>
+
++extern void arch_enable_nmi(void);
++extern void stop_watchdog(void);
++extern void reset_watchdog(void);
++extern void show_registers(struct pt_regs *regs);
++
++#ifdef CONFIG_DEBUG_BUGVERBOSE
++extern void handle_BUG(struct pt_regs *regs);
++#else
++#define handle_BUG(regs)
++#endif
++
+ static int kstack_depth_to_print = 24;
+
+-extern int raw_printk(const char *fmt, ...);
++void (*nmi_handler)(struct pt_regs*);
+
+-void show_trace(unsigned long * stack)
++void
++show_trace(unsigned long *stack)
+ {
+ unsigned long addr, module_start, module_end;
+ extern char _stext, _etext;
+ int i;
+
+- raw_printk("\nCall Trace: ");
++ printk("\nCall Trace: ");
+
+- i = 1;
+- module_start = VMALLOC_START;
+- module_end = VMALLOC_END;
++ i = 1;
++ module_start = VMALLOC_START;
++ module_end = VMALLOC_END;
+
+- while (((long) stack & (THREAD_SIZE-1)) != 0) {
+- if (__get_user (addr, stack)) {
++ while (((long)stack & (THREAD_SIZE-1)) != 0) {
++ if (__get_user(addr, stack)) {
+ /* This message matches "failing address" marked
+ s390 in ksymoops, so lines containing it will
+ not be filtered out by ksymoops. */
+- raw_printk ("Failing address 0x%lx\n", (unsigned long)stack);
++ printk("Failing address 0x%lx\n", (unsigned long)stack);
+ break;
+ }
+ stack++;
+
+- /*
+- * If the address is either in the text segment of the
+- * kernel, or in the region which contains vmalloc'ed
+- * memory, it *may* be the address of a calling
+- * routine; if so, print it so that someone tracing
+- * down the cause of the crash will be able to figure
+- * out the call path that was taken.
+- */
+- if (((addr >= (unsigned long) &_stext) &&
+- (addr <= (unsigned long) &_etext)) ||
+- ((addr >= module_start) && (addr <= module_end))) {
+- if (i && ((i % 8) == 0))
+- raw_printk("\n ");
+- raw_printk("[<%08lx>] ", addr);
+- i++;
+- }
+- }
++ /*
++ * If the address is either in the text segment of the
++ * kernel, or in the region which contains vmalloc'ed
++ * memory, it *may* be the address of a calling
++ * routine; if so, print it so that someone tracing
++ * down the cause of the crash will be able to figure
++ * out the call path that was taken.
++ */
++ if (((addr >= (unsigned long)&_stext) &&
++ (addr <= (unsigned long)&_etext)) ||
++ ((addr >= module_start) && (addr <= module_end))) {
++ if (i && ((i % 8) == 0))
++ printk("\n ");
++ printk("[<%08lx>] ", addr);
++ i++;
++ }
++ }
+ }
+
+ /*
+@@ -78,109 +90,150 @@
+ * with the ksymoops maintainer.
+ */
+
+-void
++void
+ show_stack(struct task_struct *task, unsigned long *sp)
+ {
+- unsigned long *stack, addr;
+- int i;
++ unsigned long *stack, addr;
++ int i;
+
+ /*
+ * debugging aid: "show_stack(NULL);" prints a
+ * back trace.
+ */
+
+- if(sp == NULL) {
++ if (sp == NULL) {
+ if (task)
+ sp = (unsigned long*)task->thread.ksp;
+ else
+ sp = (unsigned long*)rdsp();
+ }
+
+- stack = sp;
++ stack = sp;
+
+- raw_printk("\nStack from %08lx:\n ", (unsigned long)stack);
+- for(i = 0; i < kstack_depth_to_print; i++) {
+- if (((long) stack & (THREAD_SIZE-1)) == 0)
+- break;
+- if (i && ((i % 8) == 0))
+- raw_printk("\n ");
+- if (__get_user (addr, stack)) {
++ printk("\nStack from %08lx:\n ", (unsigned long)stack);
++ for (i = 0; i < kstack_depth_to_print; i++) {
++ if (((long)stack & (THREAD_SIZE-1)) == 0)
++ break;
++ if (i && ((i % 8) == 0))
++ printk("\n ");
++ if (__get_user(addr, stack)) {
+ /* This message matches "failing address" marked
+ s390 in ksymoops, so lines containing it will
+ not be filtered out by ksymoops. */
+- raw_printk ("Failing address 0x%lx\n", (unsigned long)stack);
++ printk("Failing address 0x%lx\n", (unsigned long)stack);
+ break;
+ }
+ stack++;
+- raw_printk("%08lx ", addr);
+- }
++ printk("%08lx ", addr);
++ }
+ show_trace(sp);
+ }
+
+-static void (*nmi_handler)(struct pt_regs*);
+-extern void arch_enable_nmi(void);
++#if 0
++/* displays a short stack trace */
+
+-void set_nmi_handler(void (*handler)(struct pt_regs*))
++int
++show_stack(void)
+ {
+- nmi_handler = handler;
+- arch_enable_nmi();
++ unsigned long *sp = (unsigned long *)rdusp();
++ int i;
++
++ printk("Stack dump [0x%08lx]:\n", (unsigned long)sp);
++ for (i = 0; i < 16; i++)
++ printk("sp + %d: 0x%08lx\n", i*4, sp[i]);
++ return 0;
+ }
++#endif
+
+-void handle_nmi(struct pt_regs* regs)
++void
++dump_stack(void)
+ {
+- if (nmi_handler)
+- nmi_handler(regs);
++ show_stack(NULL, NULL);
++}
++
++EXPORT_SYMBOL(dump_stack);
++
++void
++set_nmi_handler(void (*handler)(struct pt_regs*))
++{
++ nmi_handler = handler;
++ arch_enable_nmi();
+ }
+
+ #ifdef CONFIG_DEBUG_NMI_OOPS
+-void oops_nmi_handler(struct pt_regs* regs)
++void
++oops_nmi_handler(struct pt_regs* regs)
+ {
+- stop_watchdog();
+- raw_printk("NMI!\n");
+- show_registers(regs);
++ stop_watchdog();
++ oops_in_progress = 1;
++ printk("NMI!\n");
++ show_registers(regs);
++ oops_in_progress = 0;
+ }
+
+-static int
+-__init oops_nmi_register(void)
++static int __init
++oops_nmi_register(void)
+ {
+- set_nmi_handler(oops_nmi_handler);
+- return 0;
++ set_nmi_handler(oops_nmi_handler);
++ return 0;
+ }
+
+ __initcall(oops_nmi_register);
+
+ #endif
+
+-#if 0
+-/* displays a short stack trace */
+-
+-int
+-show_stack()
++/*
++ * This gets called from entry.S when the watchdog has bitten. Show something
++ * similiar to an Oops dump, and if the kernel is configured to be a nice
++ * doggy, then halt instead of reboot.
++ */
++void
++watchdog_bite_hook(struct pt_regs *regs)
+ {
+- unsigned long *sp = (unsigned long *)rdusp();
+- int i;
+- raw_printk("Stack dump [0x%08lx]:\n", (unsigned long)sp);
+- for(i = 0; i < 16; i++)
+- raw_printk("sp + %d: 0x%08lx\n", i*4, sp[i]);
+- return 0;
+-}
++#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
++ local_irq_disable();
++ stop_watchdog();
++ show_registers(regs);
++
++ while (1)
++ ; /* Do nothing. */
++#else
++ show_registers(regs);
+ #endif
++}
+
+-void dump_stack(void)
++/* This is normally the Oops function. */
++void
++die_if_kernel(const char *str, struct pt_regs *regs, long err)
+ {
+- show_stack(NULL, NULL);
+-}
++ if (user_mode(regs))
++ return;
+
+-EXPORT_SYMBOL(dump_stack);
++#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
++ /*
++ * This printout might take too long and could trigger
++ * the watchdog normally. If NICE_DOGGY is set, simply
++ * stop the watchdog during the printout.
++ */
++ stop_watchdog();
++#endif
+
+-void __init
+-trap_init(void)
+-{
+- /* Nothing needs to be done */
++ handle_BUG(regs);
++
++ printk("%s: %04lx\n", str, err & 0xffff);
++
++ show_registers(regs);
++
++ oops_in_progress = 0;
++
++#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
++ reset_watchdog();
++#endif
++ do_exit(SIGSEGV);
+ }
+
+-void spinning_cpu(void* addr)
++void __init
++trap_init(void)
+ {
+- raw_printk("CPU %d spinning on %X\n", smp_processor_id(), addr);
+- dump_stack();
++ /* Nothing needs to be done */
+ }
+diff -urN linux-2.6.19.2.old/arch/cris/mm/fault.c linux-2.6.19.2.dev/arch/cris/mm/fault.c
+--- linux-2.6.19.2.old/arch/cris/mm/fault.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/mm/fault.c 2006-09-29 13:14:06.000000000 +0200
+@@ -1,11 +1,27 @@
+ /*
+ * linux/arch/cris/mm/fault.c
+ *
+- * Copyright (C) 2000, 2001 Axis Communications AB
++ * Copyright (C) 2000-2006 Axis Communications AB
++ *
++ * Authors: Bjorn Wesen
+ *
+- * Authors: Bjorn Wesen
+- *
+ * $Log: fault.c,v $
++ * Revision 1.25 2006/09/29 11:14:06 orjanf
++ * * Use arch-independent macro to get irp/erp for v10/v32.
++ *
++ * Revision 1.24 2006/09/29 10:58:09 orjanf
++ * * Added user mode SIGSEGV printk.
++ *
++ * Revision 1.23 2006/06/20 07:42:56 pkj
++ * Removed an unnecessary reference to raw_printk().
++ *
++ * Revision 1.22 2005/08/29 07:32:20 starvik
++ * Merge of 2.6.13
++ *
++ * Revision 1.21 2005/07/02 12:29:37 starvik
++ * Use the generic oops_in_progress instead of the raw_printk hack.
++ * Moved some functions to achr-independent code.
++ *
+ * Revision 1.20 2005/03/04 08:16:18 starvik
+ * Merge of Linux 2.6.11.
+ *
+@@ -135,7 +151,6 @@
+
+ extern int find_fixup_code(struct pt_regs *);
+ extern void die_if_kernel(const char *, struct pt_regs *, long);
+-extern int raw_printk(const char *fmt, ...);
+
+ /* debug of low-level TLB reload */
+ #undef DEBUG
+@@ -164,8 +179,8 @@
+ * address.
+ *
+ * error_code:
+- * bit 0 == 0 means no page found, 1 means protection fault
+- * bit 1 == 0 means read, 1 means write
++ * bit 0 == 0 means no page found, 1 means protection fault
++ * bit 1 == 0 means read, 1 means write
+ *
+ * If this routine detects a bad access, it returns 1, otherwise it
+ * returns 0.
+@@ -180,9 +195,9 @@
+ struct vm_area_struct * vma;
+ siginfo_t info;
+
+- D(printk("Page fault for %lX on %X at %lX, prot %d write %d\n",
+- address, smp_processor_id(), instruction_pointer(regs),
+- protection, writeaccess));
++ D(printk("Page fault for %lX on %X at %lX, prot %d write %d\n",
++ address, smp_processor_id(), instruction_pointer(regs),
++ protection, writeaccess));
+
+ tsk = current;
+
+@@ -318,6 +333,8 @@
+ /* info.si_code has been set above */
+ info.si_addr = (void *)address;
+ force_sig_info(SIGSEGV, &info, tsk);
++ printk(KERN_NOTICE "%s (pid %d) segfaults for page address %08lx at pc %08lx\n",
++ tsk->comm, tsk->pid, address, instruction_pointer(regs));
+ return;
+ }
+
+@@ -325,7 +342,7 @@
+
+ /* Are we prepared to handle this kernel fault?
+ *
+- * (The kernel has valid exception-points in the source
++ * (The kernel has valid exception-points in the source
+ * when it acesses user-memory. When it fails in one
+ * of those points, we find it in a table and do a jump
+ * to some fixup code that loads an appropriate error
+@@ -340,13 +357,17 @@
+ * terminate things with extreme prejudice.
+ */
+
+- if ((unsigned long) (address) < PAGE_SIZE)
+- raw_printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
+- else
+- raw_printk(KERN_ALERT "Unable to handle kernel access");
+- raw_printk(" at virtual address %08lx\n",address);
++ if (!oops_in_progress) {
++ oops_in_progress = 1;
++ if ((unsigned long) (address) < PAGE_SIZE)
++ printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
++ else
++ printk(KERN_ALERT "Unable to handle kernel access");
++ printk(" at virtual address %08lx\n",address);
+
+- die_if_kernel("Oops", regs, (writeaccess << 1) | protection);
++ die_if_kernel("Oops", regs, (writeaccess << 1) | protection);
++ oops_in_progress = 0;
++ }
+
+ do_exit(SIGKILL);
+
+@@ -405,8 +426,8 @@
+ /* Since we're two-level, we don't need to do both
+ * set_pgd and set_pmd (they do the same thing). If
+ * we go three-level at some point, do the right thing
+- * with pgd_present and set_pgd here.
+- *
++ * with pgd_present and set_pgd here.
++ *
+ * Also, since the vmalloc area is global, we don't
+ * need to copy individual PTE's, it is enough to
+ * copy the pgd pointer into the pte page of the
+diff -urN linux-2.6.19.2.old/arch/cris/mm/init.c linux-2.6.19.2.dev/arch/cris/mm/init.c
+--- linux-2.6.19.2.old/arch/cris/mm/init.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/arch/cris/mm/init.c 2006-06-25 17:00:10.000000000 +0200
+@@ -7,6 +7,15 @@
+ * Authors: Bjorn Wesen (bjornw@axis.com)
+ *
+ * $Log: init.c,v $
++ * Revision 1.14 2006/06/25 15:00:10 starvik
++ * Merge of Linux 2.6.17
++ *
++ * Revision 1.13 2005/06/20 05:30:00 starvik
++ * Remove unnecessary diff to kernel.org tree
++ *
++ * Revision 1.12 2004/08/16 12:37:24 starvik
++ * Merge of Linux 2.6.8
++ *
+ * Revision 1.11 2004/05/28 09:28:56 starvik
+ * Calculation of loops_per_usec moved because initalization order has changed
+ * in Linux 2.6.
diff --git a/target/linux/etrax-2.6/patches/cris/003-drivers-cris.patch b/target/linux/etrax-2.6/patches/cris/003-drivers-cris.patch
new file mode 100644
index 0000000000..1f42fc86e6
--- /dev/null
+++ b/target/linux/etrax-2.6/patches/cris/003-drivers-cris.patch
@@ -0,0 +1,22601 @@
+diff -urN linux-2.6.19.2.orig/drivers/ide/cris/ide-cris.c linux-2.6.19.2.dev/drivers/ide/cris/ide-cris.c
+--- linux-2.6.19.2.orig/drivers/ide/cris/ide-cris.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/drivers/ide/cris/ide-cris.c 2006-12-06 14:17:02.000000000 +0100
+@@ -1,8 +1,8 @@
+-/* $Id: cris-ide-driver.patch,v 1.1 2005/06/29 21:39:07 akpm Exp $
++/* $Id: ide-cris.c,v 1.10 2006/12/06 13:17:02 starvik Exp $
+ *
+ * Etrax specific IDE functions, like init and PIO-mode setting etc.
+ * Almost the entire ide.c is used for the rest of the Etrax ATA driver.
+- * Copyright (c) 2000-2005 Axis Communications AB
++ * Copyright (c) 2000-2006 Axis Communications AB
+ *
+ * Authors: Bjorn Wesen (initial version)
+ * Mikael Starvik (crisv32 port)
+@@ -43,8 +43,8 @@
+
+ #define IDE_REGISTER_TIMEOUT 300
+
+-#define LOWDB(x)
+-#define D(x)
++#define LOWDB(x)
++#define D(x)
+
+ enum /* Transfer types */
+ {
+@@ -88,12 +88,50 @@
+ #define ATA_PIO0_STROBE 39
+ #define ATA_PIO0_HOLD 9
+
+-int
++/*
++ * On ETRAX FS, an interrupt remains latched and active until ack:ed.
++ * Further, ATA acks are without effect as long as INTRQ is asserted, as the
++ * corresponding ATA interrupt is continuously set to active. There will be a
++ * clearing ack at the usual cris_ide_ack_intr call, but that serves just to
++ * gracefully handle an actual spurious interrupt or similar situation (which
++ * will cause an early return without further actions, see the ide_intr
++ * function).
++ *
++ * However, the normal case at time of this writing is that nothing has
++ * changed from when INTRQ was asserted until the cris_ide_ack_intr call; no
++ * ATA registers written and no status register read, so INTRQ will *remain*
++ * asserted, thus *another* interrupt will be latched, and will be seen as a
++ * spurious interrupt after the "real" interrupt is serviced. With lots of
++ * ATA traffic (as in a trivial file-copy between two drives), this will trig
++ * the condition desc->irqs_unhandled > 99900 in
++ * kernel/irq/spurious.c:note_interrupt and the system will halt.
++ *
++ * To actually get rid of the interrupt corresponding to the current INTRQ
++ * assertion, we make a second ack after the next ATA register read or write;
++ * i.e. when INTRQ must be deasserted. At that time, we don't have the hwif
++ * pointer available, so we need to stash a local copy (safe, because it'll be
++ * set and cleared within the same spin_lock_irqsave region). The pointer
++ * serves doubly as a boolean flag that an ack is needed. The caller must
++ * NULL the pointer after the "second ack".
++ */
++
++static ide_hwif_t *hwif_to_ack;
++
++static int
+ cris_ide_ack_intr(ide_hwif_t* hwif)
+ {
+- reg_ata_rw_ctrl2 ctrl2 = REG_TYPE_CONV(reg_ata_rw_ctrl2,
++ /*
++ * The interrupt is shared so we need to find the interface bit number
++ * to ack. We define the ATA I/O register addresses to have the
++ * format of ata rw_ctrl2 register contents, conveniently holding this
++ * number.
++ */
++ reg_ata_rw_ctrl2 ctrl2 = REG_TYPE_CONV(reg_ata_rw_ctrl2,
+ int, hwif->io_ports[0]);
+ REG_WR_INT(ata, regi_ata, rw_ack_intr, 1 << ctrl2.sel);
++
++ /* Prepare to ack again, see above. */
++ hwif_to_ack = hwif;
+ return 1;
+ }
+
+@@ -122,8 +160,24 @@
+
+ static void
+ cris_ide_write_command(unsigned long command)
+-{
++{
+ REG_WR_INT(ata, regi_ata, rw_ctrl2, command); /* write data to the drive's register */
++
++ /*
++ * Perform a pending ack if needed; see hwif_ack definition. Perhaps
++ * we should check closer that this call is really a part of the
++ * preparation to read the ATA status register or write to the ATA
++ * command register (causing deassert of INTRQ; see the ATA standard),
++ * but at time of this writing (and expected to sanely remain so), the
++ * first ATA register activity after an cris_ide_ack_intr call is
++ * certain to do exactly that.
++ */
++ if (hwif_to_ack) {
++ /* The drive may take this long to deassert INTRQ. */
++ ndelay(400);
++ cris_ide_ack_intr(hwif_to_ack);
++ hwif_to_ack = NULL;
++ }
+ }
+
+ static void
+@@ -160,8 +214,8 @@
+ {
+ reg_ata_rw_ctrl2 ctrl2 = {0};
+ ctrl2.addr = addr;
+- ctrl2.cs1 = cs1;
+- ctrl2.cs0 = cs0;
++ ctrl2.cs1 = !cs1;
++ ctrl2.cs0 = !cs0;
+ return REG_TYPE_CONV(int, reg_ata_rw_ctrl2, ctrl2);
+ }
+
+@@ -184,14 +238,14 @@
+
+ intr_mask.bus0 = regk_ata_yes;
+ intr_mask.bus1 = regk_ata_yes;
+- intr_mask.bus2 = regk_ata_yes;
++ intr_mask.bus2 = regk_ata_yes;
+ intr_mask.bus3 = regk_ata_yes;
+
+ REG_WR(ata, regi_ata, rw_intr_mask, intr_mask);
+
+ crisv32_request_dma(2, "ETRAX FS built-in ATA", DMA_VERBOSE_ON_ERROR, 0, dma_ata);
+ crisv32_request_dma(3, "ETRAX FS built-in ATA", DMA_VERBOSE_ON_ERROR, 0, dma_ata);
+-
++
+ crisv32_pinmux_alloc_fixed(pinmux_ata);
+ crisv32_pinmux_alloc_fixed(pinmux_ata0);
+ crisv32_pinmux_alloc_fixed(pinmux_ata1);
+@@ -204,14 +258,15 @@
+ DMA_ENABLE(regi_dma3);
+
+ DMA_WR_CMD (regi_dma2, regk_dma_set_w_size2);
+- DMA_WR_CMD (regi_dma3, regk_dma_set_w_size2);
++ DMA_WR_CMD (regi_dma3, regk_dma_set_w_size2);
+ }
+
+ static dma_descr_context mycontext __attribute__ ((__aligned__(32)));
+
+ #define cris_dma_descr_type dma_descr_data
+-#define cris_pio_read regk_ata_rd
+-#define cris_ultra_mask 0x7
++#define cris_pio_read (regk_ata_rd << 24)
++#define cris_ultra_mask 0x0 /* 0x7 for UDMA */
++#define IRQ ATA_INTR_VECT
+ #define MAX_DESCR_SIZE 0xffffffffUL
+
+ static unsigned long
+@@ -226,6 +281,8 @@
+ d->buf = (char*)virt_to_phys(buf);
+ d->after = d->buf + len;
+ d->eol = last;
++ /* assume descriptors are consecutively placed in memory */
++ d->next = last ? 0 : (cris_dma_descr_type*)virt_to_phys(d+1);
+ }
+
+ static void
+@@ -237,8 +294,10 @@
+ mycontext.saved_data = (dma_descr_data*)virt_to_phys(d);
+ mycontext.saved_data_buf = d->buf;
+ /* start the dma channel */
++ if (dir)
++ flush_dma_context(&mycontext); // Cache bug workaround
+ DMA_START_CONTEXT(dir ? regi_dma3 : regi_dma2, virt_to_phys(&mycontext));
+-
++
+ /* initiate a multi word dma read using PIO handshaking */
+ trf_cnt.cnt = len >> 1;
+ /* Due to a "feature" the transfer count has to be one extra word for UDMA. */
+@@ -248,7 +307,7 @@
+
+ ctrl2.rw = dir ? regk_ata_rd : regk_ata_wr;
+ ctrl2.trf_mode = regk_ata_dma;
+- ctrl2.hsh = type == TYPE_PIO ? regk_ata_pio :
++ ctrl2.hsh = type == TYPE_PIO ? regk_ata_pio :
+ type == TYPE_DMA ? regk_ata_dma : regk_ata_udma;
+ ctrl2.multi = regk_ata_yes;
+ ctrl2.dma_size = regk_ata_word;
+@@ -339,7 +398,7 @@
+ #define ATA_PIO0_STROBE 19
+ #define ATA_PIO0_HOLD 4
+
+-int
++int
+ cris_ide_ack_intr(ide_hwif_t* hwif)
+ {
+ return 1;
+@@ -348,13 +407,13 @@
+ static inline int
+ cris_ide_busy(void)
+ {
+- return *R_ATA_STATUS_DATA & IO_MASK(R_ATA_STATUS_DATA, busy) ;
++ return *R_ATA_STATUS_DATA & IO_MASK(R_ATA_STATUS_DATA, busy) ;
+ }
+
+ static inline int
+ cris_ide_ready(void)
+ {
+- return *R_ATA_STATUS_DATA & IO_MASK(R_ATA_STATUS_DATA, tr_rdy) ;
++ return *R_ATA_STATUS_DATA & IO_MASK(R_ATA_STATUS_DATA, tr_rdy) ;
+ }
+
+ static inline int
+@@ -364,12 +423,12 @@
+ *data = (unsigned short)status;
+ return status & IO_MASK(R_ATA_STATUS_DATA, dav);
+ }
+-
++
+ static void
+ cris_ide_write_command(unsigned long command)
+ {
+- *R_ATA_CTRL_DATA = command;
+-}
++ *R_ATA_CTRL_DATA = command;
++}
+
+ static void
+ cris_ide_set_speed(int type, int setup, int strobe, int hold)
+@@ -406,8 +465,8 @@
+ cris_ide_reg_addr(unsigned long addr, int cs0, int cs1)
+ {
+ return IO_FIELD(R_ATA_CTRL_DATA, addr, addr) |
+- IO_FIELD(R_ATA_CTRL_DATA, cs0, cs0) |
+- IO_FIELD(R_ATA_CTRL_DATA, cs1, cs1);
++ IO_FIELD(R_ATA_CTRL_DATA, cs0, cs0 ? 0 : 1) |
++ IO_FIELD(R_ATA_CTRL_DATA, cs1, cs1 ? 0 : 1);
+ }
+
+ static __init void
+@@ -484,6 +543,7 @@
+ #define cris_dma_descr_type etrax_dma_descr
+ #define cris_pio_read IO_STATE(R_ATA_CTRL_DATA, rw, read)
+ #define cris_ultra_mask 0x0
++#define IRQ 4
+ #define MAX_DESCR_SIZE 0x10000UL
+
+ static unsigned long
+@@ -497,8 +557,8 @@
+ {
+ d->buf = virt_to_phys(buf);
+ d->sw_len = len == MAX_DESCR_SIZE ? 0 : len;
+- if (last)
+- d->ctrl |= d_eol;
++ d->ctrl = last ? d_eol : 0;
++ d->next = last ? 0 : virt_to_phys(d+1); /* assumes descr's in array */
+ }
+
+ static void cris_ide_start_dma(ide_drive_t *drive, cris_dma_descr_type *d, int dir, int type, int len)
+@@ -521,14 +581,14 @@
+ *R_DMA_CH2_FIRST = virt_to_phys(d);
+ *R_DMA_CH2_CMD = IO_STATE(R_DMA_CH2_CMD, cmd, start);
+ }
+-
++
+ /* initiate a multi word dma read using DMA handshaking */
+
+ *R_ATA_TRANSFER_CNT =
+ IO_FIELD(R_ATA_TRANSFER_CNT, count, len >> 1);
+
+ cmd = dir ? IO_STATE(R_ATA_CTRL_DATA, rw, read) : IO_STATE(R_ATA_CTRL_DATA, rw, write);
+- cmd |= type == TYPE_PIO ? IO_STATE(R_ATA_CTRL_DATA, handsh, pio) :
++ cmd |= type == TYPE_PIO ? IO_STATE(R_ATA_CTRL_DATA, handsh, pio) :
+ IO_STATE(R_ATA_CTRL_DATA, handsh, dma);
+ *R_ATA_CTRL_DATA =
+ cmd |
+@@ -570,7 +630,7 @@
+ }
+
+ #endif
+-
++
+ void
+ cris_ide_outw(unsigned short data, unsigned long reg) {
+ int timeleft;
+@@ -597,7 +657,7 @@
+ if(!timeleft)
+ printk("ATA timeout reg 0x%lx := 0x%x\n", reg, data);
+
+- cris_ide_write_command(reg|data); /* write data to the drive's register */
++ cris_ide_write_command(reg|data); /* write data to the drive's register */
+
+ timeleft = IDE_REGISTER_TIMEOUT;
+ /* wait for transmitter ready */
+@@ -684,13 +744,15 @@
+ static void cris_atapi_output_bytes(ide_drive_t *drive, void *, unsigned int);
+ static int cris_dma_off (ide_drive_t *drive);
+ static int cris_dma_on (ide_drive_t *drive);
++static int cris_dma_host_off (ide_drive_t *drive);
++static int cris_dma_host_on (ide_drive_t *drive);
+
+ static void tune_cris_ide(ide_drive_t *drive, u8 pio)
+ {
+ int setup, strobe, hold;
+
+ switch(pio)
+- {
++ {
+ case 0:
+ setup = ATA_PIO0_SETUP;
+ strobe = ATA_PIO0_STROBE;
+@@ -715,7 +777,7 @@
+ setup = ATA_PIO4_SETUP;
+ strobe = ATA_PIO4_STROBE;
+ hold = ATA_PIO4_HOLD;
+- break;
++ break;
+ default:
+ return;
+ }
+@@ -733,7 +795,7 @@
+ }
+
+ switch(speed)
+- {
++ {
+ case XFER_UDMA_0:
+ cyc = ATA_UDMA0_CYC;
+ dvs = ATA_UDMA0_DVS;
+@@ -765,7 +827,7 @@
+ if (speed >= XFER_UDMA_0)
+ cris_ide_set_speed(TYPE_UDMA, cyc, dvs, 0);
+ else
+- cris_ide_set_speed(TYPE_DMA, 0, strobe, hold);
++ cris_ide_set_speed(TYPE_DMA, 0, strobe, hold);
+
+ return 0;
+ }
+@@ -790,11 +852,13 @@
+
+ for(h = 0; h < MAX_HWIFS; h++) {
+ ide_hwif_t *hwif = &ide_hwifs[h];
+- ide_setup_ports(&hw, cris_ide_base_address(h),
++ memset(&hw, 0, sizeof(hw));
++ ide_setup_ports(&hw, cris_ide_base_address(h),
+ ide_offsets,
+ 0, 0, cris_ide_ack_intr,
+- ide_default_irq(0));
++ IRQ);
+ ide_register_hw(&hw, &hwif);
++ hwif->irq = IRQ;
+ hwif->mmio = 2;
+ hwif->chipset = ide_etrax100;
+ hwif->tuneproc = &tune_cris_ide;
+@@ -814,13 +878,15 @@
+ hwif->OUTBSYNC = &cris_ide_outbsync;
+ hwif->INB = &cris_ide_inb;
+ hwif->INW = &cris_ide_inw;
+- hwif->ide_dma_host_off = &cris_dma_off;
+- hwif->ide_dma_host_on = &cris_dma_on;
++ hwif->ide_dma_host_off = &cris_dma_host_off;
++ hwif->ide_dma_host_on = &cris_dma_host_on;
+ hwif->ide_dma_off_quietly = &cris_dma_off;
++ hwif->ide_dma_on = &cris_dma_on;
+ hwif->udma_four = 0;
+ hwif->ultra_mask = cris_ultra_mask;
+ hwif->mwdma_mask = 0x07; /* Multiword DMA 0-2 */
+ hwif->swdma_mask = 0x07; /* Singleword DMA 0-2 */
++ hwif->rqsize = 256;
+ }
+
+ /* Reset pulse */
+@@ -835,13 +901,25 @@
+ cris_ide_set_speed(TYPE_UDMA, ATA_UDMA2_CYC, ATA_UDMA2_DVS, 0);
+ }
+
++static int cris_dma_host_off (ide_drive_t *drive)
++{
++ return 0;
++}
++
++static int cris_dma_host_on (ide_drive_t *drive)
++{
++ return 0;
++}
++
+ static int cris_dma_off (ide_drive_t *drive)
+ {
++ drive->using_dma = 0;
+ return 0;
+ }
+
+ static int cris_dma_on (ide_drive_t *drive)
+ {
++ drive->using_dma = 1;
+ return 0;
+ }
+
+@@ -958,30 +1036,28 @@
+ size += sg_dma_len(sg);
+ }
+
+- /* did we run out of descriptors? */
+-
+- if(count >= MAX_DMA_DESCRS) {
+- printk("%s: too few DMA descriptors\n", drive->name);
+- return 1;
+- }
+-
+- /* however, this case is more difficult - rw_trf_cnt cannot be more
+- than 65536 words per transfer, so in that case we need to either
++ /* rw_trf_cnt cannot be more than 131072 words per transfer,
++ (- 1 word for UDMA CRC) so in that case we need to either:
+ 1) use a DMA interrupt to re-trigger rw_trf_cnt and continue with
+ the descriptors, or
+ 2) simply do the request here, and get dma_intr to only ide_end_request on
+ those blocks that were actually set-up for transfer.
++ (The ide framework will issue a new request for the remainder)
+ */
+
+- if(ata_tot_size + size > 131072) {
++ if(ata_tot_size + size > 262140) {
+ printk("too large total ATA DMA request, %d + %d!\n", ata_tot_size, (int)size);
+ return 1;
+ }
+
+- /* If size > MAX_DESCR_SIZE it has to be splitted into new descriptors. Since we
+- don't handle size > 131072 only one split is necessary */
++ /* If size > MAX_DESCR_SIZE it has to be splitted into new descriptors. */
+
+- if(size > MAX_DESCR_SIZE) {
++ while (size > MAX_DESCR_SIZE) {
++ /* did we run out of descriptors? */
++ if(count >= MAX_DMA_DESCRS) {
++ printk("%s: too few DMA descriptors\n", drive->name);
++ return 1;
++ }
+ cris_ide_fill_descriptor(&ata_descrs[count], (void*)addr, MAX_DESCR_SIZE, 0);
+ count++;
+ ata_tot_size += MAX_DESCR_SIZE;
+@@ -989,6 +1065,11 @@
+ addr += MAX_DESCR_SIZE;
+ }
+
++ /* did we run out of descriptors? */
++ if(count >= MAX_DMA_DESCRS) {
++ printk("%s: too few DMA descriptors\n", drive->name);
++ return 1;
++ }
+ cris_ide_fill_descriptor(&ata_descrs[count], (void*)addr, size,i ? 0 : 1);
+ count++;
+ ata_tot_size += size;
+@@ -1050,8 +1131,12 @@
+
+ if (id && (id->capability & 1)) {
+ if (ide_use_dma(drive)) {
+- if (cris_config_drive_for_dma(drive))
+- return hwif->ide_dma_on(drive);
++ if (cris_config_drive_for_dma(drive)) {
++ if (hwif->ide_dma_on)
++ return hwif->ide_dma_on(drive);
++ else
++ return 1;
++ }
+ }
+ }
+
+--- linux-2.6.19.2.orig/drivers/serial/crisv10.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/drivers/serial/crisv10.c 2007-01-09 10:30:54.000000000 +0100
+@@ -2,7 +2,7 @@
+ *
+ * Serial port driver for the ETRAX 100LX chip
+ *
+- * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Axis Communications AB
++ * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004 Axis Communications AB
+ *
+ * Many, many authors. Based once upon a time on serial.c for 16x50.
+ *
+@@ -445,6 +445,7 @@
+
+ #include <asm/io.h>
+ #include <asm/irq.h>
++#include <asm/dma.h>
+ #include <asm/system.h>
+ #include <asm/bitops.h>
+ #include <linux/delay.h>
+@@ -454,8 +455,9 @@
+ /* non-arch dependent serial structures are in linux/serial.h */
+ #include <linux/serial.h>
+ /* while we keep our own stuff (struct e100_serial) in a local .h file */
+-#include "serial.h"
++#include "crisv10.h"
+ #include <asm/fasttimer.h>
++#include <asm/arch/io_interface_mux.h>
+
+ #ifdef CONFIG_ETRAX_SERIAL_FAST_TIMER
+ #ifndef CONFIG_ETRAX_FAST_TIMER
+@@ -586,11 +588,10 @@
+ static void change_speed(struct e100_serial *info);
+ static void rs_throttle(struct tty_struct * tty);
+ static void rs_wait_until_sent(struct tty_struct *tty, int timeout);
+-static int rs_write(struct tty_struct * tty, int from_user,
++static int rs_write(struct tty_struct * tty,
+ const unsigned char *buf, int count);
+ #ifdef CONFIG_ETRAX_RS485
+-static int e100_write_rs485(struct tty_struct * tty, int from_user,
+- const unsigned char *buf, int count);
++static int e100_write_rs485(struct tty_struct * tty, const unsigned char *buf, int count);
+ #endif
+ static int get_lsr_info(struct e100_serial * info, unsigned int *value);
+
+@@ -677,20 +678,39 @@
+ .rx_ctrl = DEF_RX,
+ .tx_ctrl = DEF_TX,
+ .iseteop = 2,
++ .dma_owner = dma_ser0,
++ .io_if = if_serial_0,
+ #ifdef CONFIG_ETRAX_SERIAL_PORT0
+ .enabled = 1,
+ #ifdef CONFIG_ETRAX_SERIAL_PORT0_DMA6_OUT
+ .dma_out_enabled = 1,
++ .dma_out_nbr = SER0_TX_DMA_NBR,
++ .dma_out_irq_nbr = SER0_DMA_TX_IRQ_NBR,
++ .dma_out_irq_flags = IRQF_DISABLED,
++ .dma_out_irq_description = "serial 0 dma tr",
+ #else
+ .dma_out_enabled = 0,
++ .dma_out_nbr = UINT_MAX,
++ .dma_out_irq_nbr = 0,
++ .dma_out_irq_flags = 0,
++ .dma_out_irq_description = NULL,
+ #endif
+ #ifdef CONFIG_ETRAX_SERIAL_PORT0_DMA7_IN
+ .dma_in_enabled = 1,
++ .dma_in_nbr = SER0_RX_DMA_NBR,
++ .dma_in_irq_nbr = SER0_DMA_RX_IRQ_NBR,
++ .dma_in_irq_flags = IRQF_DISABLED,
++ .dma_in_irq_description = "serial 0 dma rec",
+ #else
+- .dma_in_enabled = 0
++ .dma_in_enabled = 0,
++ .dma_in_nbr = UINT_MAX,
++ .dma_in_irq_nbr = 0,
++ .dma_in_irq_flags = 0,
++ .dma_in_irq_description = NULL,
+ #endif
+ #else
+ .enabled = 0,
++ .io_if_description = NULL,
+ .dma_out_enabled = 0,
+ .dma_in_enabled = 0
+ #endif
+@@ -712,20 +732,42 @@
+ .rx_ctrl = DEF_RX,
+ .tx_ctrl = DEF_TX,
+ .iseteop = 3,
++ .dma_owner = dma_ser1,
++ .io_if = if_serial_1,
+ #ifdef CONFIG_ETRAX_SERIAL_PORT1
+ .enabled = 1,
++ .io_if_description = "ser1",
+ #ifdef CONFIG_ETRAX_SERIAL_PORT1_DMA8_OUT
+ .dma_out_enabled = 1,
++ .dma_out_nbr = SER1_TX_DMA_NBR,
++ .dma_out_irq_nbr = SER1_DMA_TX_IRQ_NBR,
++ .dma_out_irq_flags = IRQF_DISABLED,
++ .dma_out_irq_description = "serial 1 dma tr",
+ #else
+ .dma_out_enabled = 0,
++ .dma_out_nbr = UINT_MAX,
++ .dma_out_irq_nbr = 0,
++ .dma_out_irq_flags = 0,
++ .dma_out_irq_description = NULL,
+ #endif
+ #ifdef CONFIG_ETRAX_SERIAL_PORT1_DMA9_IN
+ .dma_in_enabled = 1,
++ .dma_in_nbr = SER1_RX_DMA_NBR,
++ .dma_in_irq_nbr = SER1_DMA_RX_IRQ_NBR,
++ .dma_in_irq_flags = IRQF_DISABLED,
++ .dma_in_irq_description = "serial 1 dma rec",
+ #else
+- .dma_in_enabled = 0
++ .dma_in_enabled = 0,
++ .dma_in_enabled = 0,
++ .dma_in_nbr = UINT_MAX,
++ .dma_in_irq_nbr = 0,
++ .dma_in_irq_flags = 0,
++ .dma_in_irq_description = NULL,
+ #endif
+ #else
+ .enabled = 0,
++ .io_if_description = NULL,
++ .dma_in_irq_nbr = 0,
+ .dma_out_enabled = 0,
+ .dma_in_enabled = 0
+ #endif
+@@ -746,20 +788,40 @@
+ .rx_ctrl = DEF_RX,
+ .tx_ctrl = DEF_TX,
+ .iseteop = 0,
++ .dma_owner = dma_ser2,
++ .io_if = if_serial_2,
+ #ifdef CONFIG_ETRAX_SERIAL_PORT2
+ .enabled = 1,
++ .io_if_description = "ser2",
+ #ifdef CONFIG_ETRAX_SERIAL_PORT2_DMA2_OUT
+ .dma_out_enabled = 1,
++ .dma_out_nbr = SER2_TX_DMA_NBR,
++ .dma_out_irq_nbr = SER2_DMA_TX_IRQ_NBR,
++ .dma_out_irq_flags = IRQF_DISABLED,
++ .dma_out_irq_description = "serial 2 dma tr",
+ #else
+ .dma_out_enabled = 0,
++ .dma_in_nbr = UINT_MAX,
++ .dma_in_irq_nbr = 0,
++ .dma_in_irq_flags = 0,
++ .dma_in_irq_description = NULL,
+ #endif
+ #ifdef CONFIG_ETRAX_SERIAL_PORT2_DMA3_IN
+ .dma_in_enabled = 1,
++ .dma_in_nbr = SER2_RX_DMA_NBR,
++ .dma_in_irq_nbr = SER2_DMA_RX_IRQ_NBR,
++ .dma_in_irq_flags = IRQF_DISABLED,
++ .dma_in_irq_description = "serial 2 dma rec",
+ #else
+- .dma_in_enabled = 0
++ .dma_in_enabled = 0,
++ .dma_in_nbr = UINT_MAX,
++ .dma_in_irq_nbr = 0,
++ .dma_in_irq_flags = 0,
++ .dma_in_irq_description = NULL,
+ #endif
+ #else
+ .enabled = 0,
++ .io_if_description = NULL,
+ .dma_out_enabled = 0,
+ .dma_in_enabled = 0
+ #endif
+@@ -780,20 +842,40 @@
+ .rx_ctrl = DEF_RX,
+ .tx_ctrl = DEF_TX,
+ .iseteop = 1,
++ .dma_owner = dma_ser3,
++ .io_if = if_serial_3,
+ #ifdef CONFIG_ETRAX_SERIAL_PORT3
+ .enabled = 1,
++ .io_if_description = "ser3",
+ #ifdef CONFIG_ETRAX_SERIAL_PORT3_DMA4_OUT
+ .dma_out_enabled = 1,
++ .dma_out_nbr = SER3_TX_DMA_NBR,
++ .dma_out_irq_nbr = SER3_DMA_TX_IRQ_NBR,
++ .dma_out_irq_flags = IRQF_DISABLED,
++ .dma_out_irq_description = "serial 3 dma tr",
+ #else
+ .dma_out_enabled = 0,
++ .dma_out_nbr = UINT_MAX,
++ .dma_out_irq_nbr = 0,
++ .dma_out_irq_flags = 0,
++ .dma_out_irq_description = NULL,
+ #endif
+ #ifdef CONFIG_ETRAX_SERIAL_PORT3_DMA5_IN
+ .dma_in_enabled = 1,
++ .dma_in_nbr = SER3_RX_DMA_NBR,
++ .dma_in_irq_nbr = SER3_DMA_RX_IRQ_NBR,
++ .dma_in_irq_flags = IRQF_DISABLED,
++ .dma_in_irq_description = "serial 3 dma rec",
+ #else
+- .dma_in_enabled = 0
++ .dma_in_enabled = 0,
++ .dma_in_nbr = UINT_MAX,
++ .dma_in_irq_nbr = 0,
++ .dma_in_irq_flags = 0,
++ .dma_in_irq_description = NULL
+ #endif
+ #else
+ .enabled = 0,
++ .io_if_description = NULL,
+ .dma_out_enabled = 0,
+ .dma_in_enabled = 0
+ #endif
+@@ -1414,12 +1496,11 @@
+ {
+ unsigned long flags;
+
+- save_flags(flags);
+- cli();
++ local_irq_save(flags);
+ *e100_modem_pins[info->line].dtr_shadow &= ~mask;
+ *e100_modem_pins[info->line].dtr_shadow |= (set ? 0 : mask);
+ *e100_modem_pins[info->line].dtr_port = *e100_modem_pins[info->line].dtr_shadow;
+- restore_flags(flags);
++ local_irq_restore(flags);
+ }
+
+ #ifdef SERIAL_DEBUG_IO
+@@ -1438,12 +1519,11 @@
+ {
+ #ifndef CONFIG_SVINTO_SIM
+ unsigned long flags;
+- save_flags(flags);
+- cli();
++ local_irq_save(flags);
+ info->rx_ctrl &= ~E100_RTS_MASK;
+ info->rx_ctrl |= (set ? 0 : E100_RTS_MASK); /* RTS is active low */
+ info->port[REG_REC_CTRL] = info->rx_ctrl;
+- restore_flags(flags);
++ local_irq_restore(flags);
+ #ifdef SERIAL_DEBUG_IO
+ printk("ser%i rts %i\n", info->line, set);
+ #endif
+@@ -1461,12 +1541,11 @@
+ unsigned char mask = e100_modem_pins[info->line].ri_mask;
+ unsigned long flags;
+
+- save_flags(flags);
+- cli();
++ local_irq_save(flags);
+ *e100_modem_pins[info->line].ri_shadow &= ~mask;
+ *e100_modem_pins[info->line].ri_shadow |= (set ? 0 : mask);
+ *e100_modem_pins[info->line].ri_port = *e100_modem_pins[info->line].ri_shadow;
+- restore_flags(flags);
++ local_irq_restore(flags);
+ }
+ #endif
+ }
+@@ -1479,12 +1558,11 @@
+ unsigned char mask = e100_modem_pins[info->line].cd_mask;
+ unsigned long flags;
+
+- save_flags(flags);
+- cli();
++ local_irq_save(flags);
+ *e100_modem_pins[info->line].cd_shadow &= ~mask;
+ *e100_modem_pins[info->line].cd_shadow |= (set ? 0 : mask);
+ *e100_modem_pins[info->line].cd_port = *e100_modem_pins[info->line].cd_shadow;
+- restore_flags(flags);
++ local_irq_restore(flags);
+ }
+ #endif
+ }
+@@ -1558,8 +1636,7 @@
+ /* Disable output DMA channel for the serial port in question
+ * ( set to something other then serialX)
+ */
+- save_flags(flags);
+- cli();
++ local_irq_save(flags);
+ DFLOW(DEBUG_LOG(info->line, "disable_txdma_channel %i\n", info->line));
+ if (info->line == 0) {
+ if ((genconfig_shadow & IO_MASK(R_GEN_CONFIG, dma6)) ==
+@@ -1587,7 +1664,7 @@
+ }
+ }
+ *R_GEN_CONFIG = genconfig_shadow;
+- restore_flags(flags);
++ local_irq_restore(flags);
+ }
+
+
+@@ -1595,8 +1672,7 @@
+ {
+ unsigned long flags;
+
+- save_flags(flags);
+- cli();
++ local_irq_save(flags);
+ DFLOW(DEBUG_LOG(info->line, "enable_txdma_channel %i\n", info->line));
+ /* Enable output DMA channel for the serial port in question */
+ if (info->line == 0) {
+@@ -1613,7 +1689,7 @@
+ genconfig_shadow |= IO_STATE(R_GEN_CONFIG, dma4, serial3);
+ }
+ *R_GEN_CONFIG = genconfig_shadow;
+- restore_flags(flags);
++ local_irq_restore(flags);
+ }
+
+ static void e100_disable_rxdma_channel(struct e100_serial *info)
+@@ -1623,8 +1699,7 @@
+ /* Disable input DMA channel for the serial port in question
+ * ( set to something other then serialX)
+ */
+- save_flags(flags);
+- cli();
++ local_irq_save(flags);
+ if (info->line == 0) {
+ if ((genconfig_shadow & IO_MASK(R_GEN_CONFIG, dma7)) ==
+ IO_STATE(R_GEN_CONFIG, dma7, serial0)) {
+@@ -1651,7 +1726,7 @@
+ }
+ }
+ *R_GEN_CONFIG = genconfig_shadow;
+- restore_flags(flags);
++ local_irq_restore(flags);
+ }
+
+
+@@ -1659,8 +1734,7 @@
+ {
+ unsigned long flags;
+
+- save_flags(flags);
+- cli();
++ local_irq_save(flags);
+ /* Enable input DMA channel for the serial port in question */
+ if (info->line == 0) {
+ genconfig_shadow &= ~IO_MASK(R_GEN_CONFIG, dma7);
+@@ -1676,7 +1750,7 @@
+ genconfig_shadow |= IO_STATE(R_GEN_CONFIG, dma5, serial3);
+ }
+ *R_GEN_CONFIG = genconfig_shadow;
+- restore_flags(flags);
++ local_irq_restore(flags);
+ }
+
+ #ifdef SERIAL_HANDLE_EARLY_ERRORS
+@@ -1783,7 +1857,7 @@
+ }
+
+ static int
+-e100_write_rs485(struct tty_struct *tty, int from_user,
++e100_write_rs485(struct tty_struct *tty,
+ const unsigned char *buf, int count)
+ {
+ struct e100_serial * info = (struct e100_serial *)tty->driver_data;
+@@ -1796,7 +1870,7 @@
+ */
+ info->rs485.enabled = 1;
+ /* rs_write now deals with RS485 if enabled */
+- count = rs_write(tty, from_user, buf, count);
++ count = rs_write(tty, buf, count);
+ info->rs485.enabled = old_enabled;
+ return count;
+ }
+@@ -1834,7 +1908,7 @@
+ unsigned long flags;
+ unsigned long xoff;
+
+- save_flags(flags); cli();
++ local_irq_save(flags);
+ DFLOW(DEBUG_LOG(info->line, "XOFF rs_stop xmit %i\n",
+ CIRC_CNT(info->xmit.head,
+ info->xmit.tail,SERIAL_XMIT_SIZE)));
+@@ -1846,7 +1920,7 @@
+ }
+
+ *((unsigned long *)&info->port[REG_XOFF]) = xoff;
+- restore_flags(flags);
++ local_irq_restore(flags);
+ }
+ }
+
+@@ -1858,7 +1932,7 @@
+ unsigned long flags;
+ unsigned long xoff;
+
+- save_flags(flags); cli();
++ local_irq_save(flags);
+ DFLOW(DEBUG_LOG(info->line, "XOFF rs_start xmit %i\n",
+ CIRC_CNT(info->xmit.head,
+ info->xmit.tail,SERIAL_XMIT_SIZE)));
+@@ -1873,7 +1947,7 @@
+ info->xmit.head != info->xmit.tail && info->xmit.buf)
+ e100_enable_serial_tx_ready_irq(info);
+
+- restore_flags(flags);
++ local_irq_restore(flags);
+ }
+ }
+
+@@ -2053,8 +2127,7 @@
+ static void flush_timeout_function(unsigned long data);
+ #define START_FLUSH_FAST_TIMER_TIME(info, string, usec) {\
+ unsigned long timer_flags; \
+- save_flags(timer_flags); \
+- cli(); \
++ local_irq_save(timer_flags); \
+ if (fast_timers[info->line].function == NULL) { \
+ serial_fast_timer_started++; \
+ TIMERD(DEBUG_LOG(info->line, "start_timer %i ", info->line)); \
+@@ -2068,7 +2141,7 @@
+ else { \
+ TIMERD(DEBUG_LOG(info->line, "timer %i already running\n", info->line)); \
+ } \
+- restore_flags(timer_flags); \
++ local_irq_restore(timer_flags); \
+ }
+ #define START_FLUSH_FAST_TIMER(info, string) START_FLUSH_FAST_TIMER_TIME(info, string, info->flush_time_usec)
+
+@@ -2097,8 +2170,7 @@
+ {
+ unsigned long flags;
+
+- save_flags(flags);
+- cli();
++ local_irq_save(flags);
+
+ if (!info->first_recv_buffer)
+ info->first_recv_buffer = buffer;
+@@ -2111,7 +2183,7 @@
+ if (info->recv_cnt > info->max_recv_cnt)
+ info->max_recv_cnt = info->recv_cnt;
+
+- restore_flags(flags);
++ local_irq_restore(flags);
+ }
+
+ static int
+@@ -2131,11 +2203,7 @@
+ info->icount.rx++;
+ } else {
+ struct tty_struct *tty = info->tty;
+- *tty->flip.char_buf_ptr = data;
+- *tty->flip.flag_buf_ptr = flag;
+- tty->flip.flag_buf_ptr++;
+- tty->flip.char_buf_ptr++;
+- tty->flip.count++;
++ tty_insert_flip_char(tty, data, flag);
+ info->icount.rx++;
+ }
+
+@@ -2320,7 +2388,6 @@
+ */
+ return;
+ #endif
+- info->tty->flip.count = 0;
+ if (info->uses_dma_in) {
+ /* reset the input dma channel to be sure it works */
+
+@@ -2482,70 +2549,21 @@
+ {
+ struct tty_struct *tty;
+ struct etrax_recv_buffer *buffer;
+- unsigned int length;
+ unsigned long flags;
+- int max_flip_size;
+-
+- if (!info->first_recv_buffer)
+- return;
+
+- save_flags(flags);
+- cli();
++ local_irq_save(flags);
++ tty = info->tty;
+
+- if (!(tty = info->tty)) {
+- restore_flags(flags);
++ if (!tty) {
++ local_irq_restore(flags);
+ return;
+ }
+
+- length = tty->flip.count;
+- /* Don't flip more than the ldisc has room for.
+- * The return value from ldisc.receive_room(tty) - might not be up to
+- * date, the previous flip of up to TTY_FLIPBUF_SIZE might be on the
+- * processed and not accounted for yet.
+- * Since we use DMA, 1 SERIAL_DESCR_BUF_SIZE could be on the way.
+- * Lets buffer data here and let flow control take care of it.
+- * Since we normally flip large chunks, the ldisc don't react
+- * with throttle until too late if we flip to much.
+- */
+- max_flip_size = tty->ldisc.receive_room(tty);
+- if (max_flip_size < 0)
+- max_flip_size = 0;
+- if (max_flip_size <= (TTY_FLIPBUF_SIZE + /* Maybe not accounted for */
+- length + info->recv_cnt + /* We have this queued */
+- 2*SERIAL_DESCR_BUF_SIZE + /* This could be on the way */
+- TTY_THRESHOLD_THROTTLE)) { /* Some slack */
+- /* check TTY_THROTTLED first so it indicates our state */
+- if (!test_and_set_bit(TTY_THROTTLED, &tty->flags)) {
+- DFLOW(DEBUG_LOG(info->line,"flush_to_flip throttles room %lu\n", max_flip_size));
+- rs_throttle(tty);
+- }
+-#if 0
+- else if (max_flip_size <= (TTY_FLIPBUF_SIZE + /* Maybe not accounted for */
+- length + info->recv_cnt + /* We have this queued */
+- SERIAL_DESCR_BUF_SIZE + /* This could be on the way */
+- TTY_THRESHOLD_THROTTLE)) { /* Some slack */
+- DFLOW(DEBUG_LOG(info->line,"flush_to_flip throttles again! %lu\n", max_flip_size));
+- rs_throttle(tty);
+- }
+-#endif
+- }
+-
+- if (max_flip_size > TTY_FLIPBUF_SIZE)
+- max_flip_size = TTY_FLIPBUF_SIZE;
+-
+- while ((buffer = info->first_recv_buffer) && length < max_flip_size) {
++ while ((buffer = info->first_recv_buffer)) {
+ unsigned int count = buffer->length;
+
+- if (length + count > max_flip_size)
+- count = max_flip_size - length;
+-
+- memcpy(tty->flip.char_buf_ptr + length, buffer->buffer, count);
+- memset(tty->flip.flag_buf_ptr + length, TTY_NORMAL, count);
+- tty->flip.flag_buf_ptr[length] = buffer->error;
+-
+- length += count;
++ tty_insert_flip_string(tty, buffer->buffer, count);
+ info->recv_cnt -= count;
+- DFLIP(DEBUG_LOG(info->line,"flip: %i\n", length));
+
+ if (count == buffer->length) {
+ info->first_recv_buffer = buffer->next;
+@@ -2560,24 +2578,7 @@
+ if (!info->first_recv_buffer)
+ info->last_recv_buffer = NULL;
+
+- tty->flip.count = length;
+- DFLIP(if (tty->ldisc.chars_in_buffer(tty) > 3500) {
+- DEBUG_LOG(info->line, "ldisc %lu\n",
+- tty->ldisc.chars_in_buffer(tty));
+- DEBUG_LOG(info->line, "flip.count %lu\n",
+- tty->flip.count);
+- }
+- );
+- restore_flags(flags);
+-
+- DFLIP(
+- if (1) {
+- DEBUG_LOG(info->line, "*** rxtot %i\n", info->icount.rx);
+- DEBUG_LOG(info->line, "ldisc %lu\n", tty->ldisc.chars_in_buffer(tty));
+- DEBUG_LOG(info->line, "room %lu\n", tty->ldisc.receive_room(tty));
+- }
+-
+- );
++ local_irq_restore(flags);
+
+ /* this includes a check for low-latency */
+ tty_flip_buffer_push(tty);
+@@ -2722,21 +2723,7 @@
+ printk("!NO TTY!\n");
+ return info;
+ }
+- if (tty->flip.count >= TTY_FLIPBUF_SIZE - TTY_THRESHOLD_THROTTLE) {
+- /* check TTY_THROTTLED first so it indicates our state */
+- if (!test_and_set_bit(TTY_THROTTLED, &tty->flags)) {
+- DFLOW(DEBUG_LOG(info->line, "rs_throttle flip.count: %i\n", tty->flip.count));
+- rs_throttle(tty);
+- }
+- }
+- if (tty->flip.count >= TTY_FLIPBUF_SIZE) {
+- DEBUG_LOG(info->line, "force FLIP! %i\n", tty->flip.count);
+- tty->flip.work.func((void *) tty);
+- if (tty->flip.count >= TTY_FLIPBUF_SIZE) {
+- DEBUG_LOG(info->line, "FLIP FULL! %i\n", tty->flip.count);
+- return info; /* if TTY_DONT_FLIP is set */
+- }
+- }
++
+ /* Read data and status at the same time */
+ data_read = *((unsigned long *)&info->port[REG_DATA_STATUS32]);
+ more_data:
+@@ -2789,27 +2776,25 @@
+ DEBUG_LOG(info->line, "EBRK %i\n", info->break_detected_cnt);
+ info->errorcode = ERRCODE_INSERT_BREAK;
+ } else {
++ unsigned char data = IO_EXTRACT(R_SERIAL0_READ, data_in, data_read);
++ char flag = TTY_NORMAL;
+ if (info->errorcode == ERRCODE_INSERT_BREAK) {
+- info->icount.brk++;
+- *tty->flip.char_buf_ptr = 0;
+- *tty->flip.flag_buf_ptr = TTY_BREAK;
+- tty->flip.flag_buf_ptr++;
+- tty->flip.char_buf_ptr++;
+- tty->flip.count++;
++ struct tty_struct *tty = info->tty;
++ tty_insert_flip_char(tty, 0, flag);
+ info->icount.rx++;
+ }
+- *tty->flip.char_buf_ptr = IO_EXTRACT(R_SERIAL0_READ, data_in, data_read);
+
+ if (data_read & IO_MASK(R_SERIAL0_READ, par_err)) {
+ info->icount.parity++;
+- *tty->flip.flag_buf_ptr = TTY_PARITY;
++ flag = TTY_PARITY;
+ } else if (data_read & IO_MASK(R_SERIAL0_READ, overrun)) {
+ info->icount.overrun++;
+- *tty->flip.flag_buf_ptr = TTY_OVERRUN;
++ flag = TTY_OVERRUN;
+ } else if (data_read & IO_MASK(R_SERIAL0_READ, framing_err)) {
+ info->icount.frame++;
+- *tty->flip.flag_buf_ptr = TTY_FRAME;
++ flag = TTY_FRAME;
+ }
++ tty_insert_flip_char(tty, data, flag);
+ info->errorcode = 0;
+ }
+ info->break_detected_cnt = 0;
+@@ -2825,16 +2810,12 @@
+ log_int(rdpc(), 0, 0);
+ }
+ );
+- *tty->flip.char_buf_ptr = IO_EXTRACT(R_SERIAL0_READ, data_in, data_read);
+- *tty->flip.flag_buf_ptr = 0;
++ tty_insert_flip_char(tty, IO_EXTRACT(R_SERIAL0_READ, data_in, data_read), TTY_NORMAL);
+ } else {
+ DEBUG_LOG(info->line, "ser_rx int but no data_avail %08lX\n", data_read);
+ }
+
+
+- tty->flip.flag_buf_ptr++;
+- tty->flip.char_buf_ptr++;
+- tty->flip.count++;
+ info->icount.rx++;
+ data_read = *((unsigned long *)&info->port[REG_DATA_STATUS32]);
+ if (data_read & IO_MASK(R_SERIAL0_READ, data_avail)) {
+@@ -2972,7 +2953,7 @@
+ if (info->x_char) {
+ unsigned char rstat;
+ DFLOW(DEBUG_LOG(info->line, "tx_int: xchar 0x%02X\n", info->x_char));
+- save_flags(flags); cli();
++ local_irq_save(flags);
+ rstat = info->port[REG_STATUS];
+ DFLOW(DEBUG_LOG(info->line, "stat %x\n", rstat));
+
+@@ -2981,7 +2962,7 @@
+ info->x_char = 0;
+ /* We must enable since it is disabled in ser_interrupt */
+ e100_enable_serial_tx_ready_irq(info);
+- restore_flags(flags);
++ local_irq_restore(flags);
+ return;
+ }
+ if (info->uses_dma_out) {
+@@ -2989,7 +2970,7 @@
+ int i;
+ /* We only use normal tx interrupt when sending x_char */
+ DFLOW(DEBUG_LOG(info->line, "tx_int: xchar sent\n", 0));
+- save_flags(flags); cli();
++ local_irq_save(flags);
+ rstat = info->port[REG_STATUS];
+ DFLOW(DEBUG_LOG(info->line, "stat %x\n", rstat));
+ e100_disable_serial_tx_ready_irq(info);
+@@ -3002,7 +2983,7 @@
+ nop();
+
+ *info->ocmdadr = IO_STATE(R_DMA_CH6_CMD, cmd, continue);
+- restore_flags(flags);
++ local_irq_restore(flags);
+ return;
+ }
+ /* Normal char-by-char interrupt */
+@@ -3016,7 +2997,7 @@
+ }
+ DINTR2(DEBUG_LOG(info->line, "tx_int %c\n", info->xmit.buf[info->xmit.tail]));
+ /* Send a byte, rs485 timing is critical so turn of ints */
+- save_flags(flags); cli();
++ local_irq_save(flags);
+ info->port[REG_TR_DATA] = info->xmit.buf[info->xmit.tail];
+ info->xmit.tail = (info->xmit.tail + 1) & (SERIAL_XMIT_SIZE-1);
+ info->icount.tx++;
+@@ -3040,7 +3021,7 @@
+ /* We must enable since it is disabled in ser_interrupt */
+ e100_enable_serial_tx_ready_irq(info);
+ }
+- restore_flags(flags);
++ local_irq_restore(flags);
+
+ if (CIRC_CNT(info->xmit.head,
+ info->xmit.tail,
+@@ -3065,7 +3046,7 @@
+ int handled = 0;
+ static volatile unsigned long reentered_ready_mask = 0;
+
+- save_flags(flags); cli();
++ local_irq_save(flags);
+ irq_mask1_rd = *R_IRQ_MASK1_RD;
+ /* First handle all rx interrupts with ints disabled */
+ info = rs_table;
+@@ -3110,7 +3091,7 @@
+ /* Unblock the serial interrupt */
+ *R_VECT_MASK_SET = IO_STATE(R_VECT_MASK_SET, serial, set);
+
+- sti();
++ local_irq_enable();
+ ready_mask = (1 << (8+1+2*0)); /* ser0 tr_ready */
+ info = rs_table;
+ for (i = 0; i < NR_PORTS; i++) {
+@@ -3123,11 +3104,11 @@
+ ready_mask <<= 2;
+ }
+ /* handle_ser_tx_interrupt enables tr_ready interrupts */
+- cli();
++ local_irq_disable();
+ /* Handle reentered TX interrupt */
+ irq_mask1_rd = reentered_ready_mask;
+ }
+- cli();
++ local_irq_disable();
+ tx_started = 0;
+ } else {
+ unsigned long ready_mask;
+@@ -3143,7 +3124,7 @@
+ }
+ }
+
+- restore_flags(flags);
++ local_irq_restore(flags);
+ return IRQ_RETVAL(handled);
+ } /* ser_interrupt */
+ #endif
+@@ -3192,13 +3173,12 @@
+ if (!xmit_page)
+ return -ENOMEM;
+
+- save_flags(flags);
+- cli();
++ local_irq_save(flags);
+
+ /* if it was already initialized, skip this */
+
+ if (info->flags & ASYNC_INITIALIZED) {
+- restore_flags(flags);
++ local_irq_restore(flags);
+ free_page(xmit_page);
+ return 0;
+ }
+@@ -3324,7 +3304,7 @@
+
+ info->flags |= ASYNC_INITIALIZED;
+
+- restore_flags(flags);
++ local_irq_restore(flags);
+ return 0;
+ }
+
+@@ -3375,8 +3355,7 @@
+ info->irq);
+ #endif
+
+- save_flags(flags);
+- cli(); /* Disable interrupts */
++ local_irq_save(flags);
+
+ if (info->xmit.buf) {
+ free_page((unsigned long)info->xmit.buf);
+@@ -3400,7 +3379,7 @@
+ set_bit(TTY_IO_ERROR, &info->tty->flags);
+
+ info->flags &= ~ASYNC_INITIALIZED;
+- restore_flags(flags);
++ local_irq_restore(flags);
+ }
+
+
+@@ -3492,8 +3471,7 @@
+
+ #ifndef CONFIG_SVINTO_SIM
+ /* start with default settings and then fill in changes */
+- save_flags(flags);
+- cli();
++ local_irq_save(flags);
+ /* 8 bit, no/even parity */
+ info->rx_ctrl &= ~(IO_MASK(R_SERIAL0_REC_CTRL, rec_bitnr) |
+ IO_MASK(R_SERIAL0_REC_CTRL, rec_par_en) |
+@@ -3557,7 +3535,7 @@
+ }
+
+ *((unsigned long *)&info->port[REG_XOFF]) = xoff;
+- restore_flags(flags);
++ local_irq_restore(flags);
+ #endif /* !CONFIG_SVINTO_SIM */
+
+ update_char_time(info);
+@@ -3585,13 +3563,12 @@
+
+ /* this protection might not exactly be necessary here */
+
+- save_flags(flags);
+- cli();
++ local_irq_save(flags);
+ start_transmit(info);
+- restore_flags(flags);
++ local_irq_restore(flags);
+ }
+
+-static int rs_raw_write(struct tty_struct * tty, int from_user,
++static int rs_raw_write(struct tty_struct * tty,
+ const unsigned char *buf, int count)
+ {
+ int c, ret = 0;
+@@ -3614,72 +3591,37 @@
+ SIMCOUT(buf, count);
+ return count;
+ #endif
+- save_flags(flags);
++ local_save_flags(flags);
+ DFLOW(DEBUG_LOG(info->line, "write count %i ", count));
+ DFLOW(DEBUG_LOG(info->line, "ldisc %i\n", tty->ldisc.chars_in_buffer(tty)));
+
+
+- /* the cli/restore_flags pairs below are needed because the
++ /* the local_irq_disable/restore_flags pairs below are needed because the
+ * DMA interrupt handler moves the info->xmit values. the memcpy
+ * needs to be in the critical region unfortunately, because we
+ * need to read xmit values, memcpy, write xmit values in one
+ * atomic operation... this could perhaps be avoided by more clever
+ * design.
+ */
+- if (from_user) {
+- mutex_lock(&tmp_buf_mutex);
+- while (1) {
+- int c1;
+- c = CIRC_SPACE_TO_END(info->xmit.head,
+- info->xmit.tail,
+- SERIAL_XMIT_SIZE);
+- if (count < c)
+- c = count;
+- if (c <= 0)
+- break;
+-
+- c -= copy_from_user(tmp_buf, buf, c);
+- if (!c) {
+- if (!ret)
+- ret = -EFAULT;
+- break;
+- }
+- cli();
+- c1 = CIRC_SPACE_TO_END(info->xmit.head,
+- info->xmit.tail,
+- SERIAL_XMIT_SIZE);
+- if (c1 < c)
+- c = c1;
+- memcpy(info->xmit.buf + info->xmit.head, tmp_buf, c);
+- info->xmit.head = ((info->xmit.head + c) &
+- (SERIAL_XMIT_SIZE-1));
+- restore_flags(flags);
+- buf += c;
+- count -= c;
+- ret += c;
+- }
+- mutex_unlock(&tmp_buf_mutex);
+- } else {
+- cli();
+- while (count) {
+- c = CIRC_SPACE_TO_END(info->xmit.head,
+- info->xmit.tail,
+- SERIAL_XMIT_SIZE);
+-
+- if (count < c)
+- c = count;
+- if (c <= 0)
+- break;
+-
+- memcpy(info->xmit.buf + info->xmit.head, buf, c);
+- info->xmit.head = (info->xmit.head + c) &
+- (SERIAL_XMIT_SIZE-1);
+- buf += c;
+- count -= c;
+- ret += c;
+- }
+- restore_flags(flags);
++ local_irq_disable();
++ while (count) {
++ c = CIRC_SPACE_TO_END(info->xmit.head,
++ info->xmit.tail,
++ SERIAL_XMIT_SIZE);
++
++ if (count < c)
++ c = count;
++ if (c <= 0)
++ break;
++
++ memcpy(info->xmit.buf + info->xmit.head, buf, c);
++ info->xmit.head = (info->xmit.head + c) &
++ (SERIAL_XMIT_SIZE-1);
++ buf += c;
++ count -= c;
++ ret += c;
+ }
++ local_irq_restore(flags);
+
+ /* enable transmitter if not running, unless the tty is stopped
+ * this does not need IRQ protection since if tr_running == 0
+@@ -3698,7 +3640,7 @@
+ } /* raw_raw_write() */
+
+ static int
+-rs_write(struct tty_struct * tty, int from_user,
++rs_write(struct tty_struct * tty,
+ const unsigned char *buf, int count)
+ {
+ #if defined(CONFIG_ETRAX_RS485)
+@@ -3725,7 +3667,7 @@
+ }
+ #endif /* CONFIG_ETRAX_RS485 */
+
+- count = rs_raw_write(tty, from_user, buf, count);
++ count = rs_raw_write(tty, buf, count);
+
+ #if defined(CONFIG_ETRAX_RS485)
+ if (info->rs485.enabled)
+@@ -3793,10 +3735,9 @@
+ struct e100_serial *info = (struct e100_serial *)tty->driver_data;
+ unsigned long flags;
+
+- save_flags(flags);
+- cli();
++ local_irq_save(flags);
+ info->xmit.head = info->xmit.tail = 0;
+- restore_flags(flags);
++ local_irq_restore(flags);
+
+ wake_up_interruptible(&tty->write_wait);
+
+@@ -3818,7 +3759,7 @@
+ {
+ struct e100_serial *info = (struct e100_serial *)tty->driver_data;
+ unsigned long flags;
+- save_flags(flags); cli();
++ local_irq_save(flags);
+ if (info->uses_dma_out) {
+ /* Put the DMA on hold and disable the channel */
+ *info->ocmdadr = IO_STATE(R_DMA_CH6_CMD, cmd, hold);
+@@ -3835,7 +3776,7 @@
+ DFLOW(DEBUG_LOG(info->line, "rs_send_xchar 0x%02X\n", ch));
+ info->x_char = ch;
+ e100_enable_serial_tx_ready_irq(info);
+- restore_flags(flags);
++ local_irq_restore(flags);
+ }
+
+ /*
+@@ -4085,61 +4026,6 @@
+ return 0;
+ }
+
+-
+-static int
+-set_modem_info(struct e100_serial * info, unsigned int cmd,
+- unsigned int *value)
+-{
+- unsigned int arg;
+-
+- if (copy_from_user(&arg, value, sizeof(int)))
+- return -EFAULT;
+-
+- switch (cmd) {
+- case TIOCMBIS:
+- if (arg & TIOCM_RTS) {
+- e100_rts(info, 1);
+- }
+- if (arg & TIOCM_DTR) {
+- e100_dtr(info, 1);
+- }
+- /* Handle FEMALE behaviour */
+- if (arg & TIOCM_RI) {
+- e100_ri_out(info, 1);
+- }
+- if (arg & TIOCM_CD) {
+- e100_cd_out(info, 1);
+- }
+- break;
+- case TIOCMBIC:
+- if (arg & TIOCM_RTS) {
+- e100_rts(info, 0);
+- }
+- if (arg & TIOCM_DTR) {
+- e100_dtr(info, 0);
+- }
+- /* Handle FEMALE behaviour */
+- if (arg & TIOCM_RI) {
+- e100_ri_out(info, 0);
+- }
+- if (arg & TIOCM_CD) {
+- e100_cd_out(info, 0);
+- }
+- break;
+- case TIOCMSET:
+- e100_rts(info, arg & TIOCM_RTS);
+- e100_dtr(info, arg & TIOCM_DTR);
+- /* Handle FEMALE behaviour */
+- e100_ri_out(info, arg & TIOCM_RI);
+- e100_cd_out(info, arg & TIOCM_CD);
+- break;
+- default:
+- return -EINVAL;
+- }
+- return 0;
+-}
+-
+-
+ static void
+ rs_break(struct tty_struct *tty, int break_state)
+ {
+@@ -4149,8 +4035,7 @@
+ if (!info->port)
+ return;
+
+- save_flags(flags);
+- cli();
++ local_irq_save(flags);
+ if (break_state == -1) {
+ /* Go to manual mode and set the txd pin to 0 */
+ info->tx_ctrl &= 0x3F; /* Clear bit 7 (txd) and 6 (tr_enable) */
+@@ -4158,7 +4043,42 @@
+ info->tx_ctrl |= (0x80 | 0x40); /* Set bit 7 (txd) and 6 (tr_enable) */
+ }
+ info->port[REG_TR_CTRL] = info->tx_ctrl;
+- restore_flags(flags);
++ local_irq_restore(flags);
++}
++
++static int
++rs_tiocmset(struct tty_struct *tty, struct file * file, unsigned int set, unsigned int clear)
++{
++ struct e100_serial * info = (struct e100_serial *)tty->driver_data;
++
++ if (clear & TIOCM_RTS) {
++ e100_rts(info, 0);
++ }
++ if (clear & TIOCM_DTR) {
++ e100_dtr(info, 0);
++ }
++ /* Handle FEMALE behaviour */
++ if (clear & TIOCM_RI) {
++ e100_ri_out(info, 0);
++ }
++ if (clear & TIOCM_CD) {
++ e100_cd_out(info, 0);
++ }
++
++ if (set & TIOCM_RTS) {
++ e100_rts(info, 1);
++ }
++ if (set & TIOCM_DTR) {
++ e100_dtr(info, 1);
++ }
++ /* Handle FEMALE behaviour */
++ if (set & TIOCM_RI) {
++ e100_ri_out(info, 1);
++ }
++ if (set & TIOCM_CD) {
++ e100_cd_out(info, 1);
++ }
++ return 0;
+ }
+
+ static int
+@@ -4177,10 +4097,6 @@
+ switch (cmd) {
+ case TIOCMGET:
+ return get_modem_info(info, (unsigned int *) arg);
+- case TIOCMBIS:
+- case TIOCMBIC:
+- case TIOCMSET:
+- return set_modem_info(info, cmd, (unsigned int *) arg);
+ case TIOCGSERIAL:
+ return get_serial_info(info,
+ (struct serial_struct *) arg);
+@@ -4212,7 +4128,7 @@
+ if (copy_from_user(&rs485wr, (struct rs485_write*)arg, sizeof(rs485wr)))
+ return -EFAULT;
+
+- return e100_write_rs485(tty, 1, rs485wr.outc, rs485wr.outc_size);
++ return e100_write_rs485(tty, rs485wr.outc, rs485wr.outc_size);
+ }
+ #endif
+
+@@ -4242,46 +4158,6 @@
+
+ }
+
+-/* In debugport.c - register a console write function that uses the normal
+- * serial driver
+- */
+-typedef int (*debugport_write_function)(int i, const char *buf, unsigned int len);
+-
+-extern debugport_write_function debug_write_function;
+-
+-static int rs_debug_write_function(int i, const char *buf, unsigned int len)
+-{
+- int cnt;
+- int written = 0;
+- struct tty_struct *tty;
+- static int recurse_cnt = 0;
+-
+- tty = rs_table[i].tty;
+- if (tty) {
+- unsigned long flags;
+- if (recurse_cnt > 5) /* We skip this debug output */
+- return 1;
+-
+- local_irq_save(flags);
+- recurse_cnt++;
+- local_irq_restore(flags);
+- do {
+- cnt = rs_write(tty, 0, buf + written, len);
+- if (cnt >= 0) {
+- written += cnt;
+- buf += cnt;
+- len -= cnt;
+- } else
+- len = cnt;
+- } while(len > 0);
+- local_irq_save(flags);
+- recurse_cnt--;
+- local_irq_restore(flags);
+- return 1;
+- }
+- return 0;
+-}
+-
+ /*
+ * ------------------------------------------------------------
+ * rs_close()
+@@ -4303,11 +4179,10 @@
+
+ /* interrupts are disabled for this entire function */
+
+- save_flags(flags);
+- cli();
++ local_irq_save(flags);
+
+ if (tty_hung_up_p(filp)) {
+- restore_flags(flags);
++ local_irq_restore(flags);
+ return;
+ }
+
+@@ -4334,7 +4209,7 @@
+ info->count = 0;
+ }
+ if (info->count) {
+- restore_flags(flags);
++ local_irq_restore(flags);
+ return;
+ }
+ info->flags |= ASYNC_CLOSING;
+@@ -4388,7 +4263,7 @@
+ }
+ info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
+ wake_up_interruptible(&info->close_wait);
+- restore_flags(flags);
++ local_irq_restore(flags);
+
+ /* port closed */
+
+@@ -4410,6 +4285,28 @@
+ #endif
+ }
+ #endif
++
++ /*
++ * Release any allocated DMA irq's.
++ */
++ if (info->dma_in_enabled) {
++ cris_free_dma(info->dma_in_nbr, info->dma_in_irq_description);
++ free_irq(info->dma_in_irq_nbr,
++ info);
++ info->uses_dma_in = 0;
++#ifdef SERIAL_DEBUG_OPEN
++ printk("DMA irq '%s' freed\n", info->dma_in_irq_description);
++#endif
++ }
++ if (info->dma_out_enabled) {
++ free_irq(info->dma_out_irq_nbr,
++ info);
++ cris_free_dma(info->dma_out_nbr, info->dma_out_irq_description);
++ info->uses_dma_out = 0;
++#ifdef SERIAL_DEBUG_OPEN
++ printk("DMA irq '%s' freed\n", info->dma_out_irq_description);
++#endif
++ }
+ }
+
+ /*
+@@ -4485,7 +4382,7 @@
+ if (tty_hung_up_p(filp) ||
+ (info->flags & ASYNC_CLOSING)) {
+ if (info->flags & ASYNC_CLOSING)
+- interruptible_sleep_on(&info->close_wait);
++ wait_event_interruptible(info->close_wait, 0);
+ #ifdef SERIAL_DO_RESTART
+ if (info->flags & ASYNC_HUP_NOTIFY)
+ return -EAGAIN;
+@@ -4523,21 +4420,19 @@
+ printk("block_til_ready before block: ttyS%d, count = %d\n",
+ info->line, info->count);
+ #endif
+- save_flags(flags);
+- cli();
++ local_irq_save(flags);
+ if (!tty_hung_up_p(filp)) {
+ extra_count++;
+ info->count--;
+ }
+- restore_flags(flags);
++ local_irq_restore(flags);
+ info->blocked_open++;
+ while (1) {
+- save_flags(flags);
+- cli();
++ local_irq_save(flags);
+ /* assert RTS and DTR */
+ e100_rts(info, 1);
+ e100_dtr(info, 1);
+- restore_flags(flags);
++ local_irq_restore(flags);
+ set_current_state(TASK_INTERRUPTIBLE);
+ if (tty_hung_up_p(filp) ||
+ !(info->flags & ASYNC_INITIALIZED)) {
+@@ -4589,9 +4484,9 @@
+ struct e100_serial *info;
+ int retval, line;
+ unsigned long page;
++ int allocated_resources = 0;
+
+ /* find which port we want to open */
+-
+ line = tty->index;
+
+ if (line < 0 || line >= NR_PORTS)
+@@ -4632,7 +4527,7 @@
+ if (tty_hung_up_p(filp) ||
+ (info->flags & ASYNC_CLOSING)) {
+ if (info->flags & ASYNC_CLOSING)
+- interruptible_sleep_on(&info->close_wait);
++ wait_event_interruptible(info->close_wait, 0);
+ #ifdef SERIAL_DO_RESTART
+ return ((info->flags & ASYNC_HUP_NOTIFY) ?
+ -EAGAIN : -ERESTARTSYS);
+@@ -4642,12 +4537,79 @@
+ }
+
+ /*
++ * If DMA is enabled try to allocate the irq's.
++ */
++ if (info->count == 1) {
++ allocated_resources = 1;
++ if (info->dma_in_enabled) {
++ if (request_irq(info->dma_in_irq_nbr,
++ rec_interrupt,
++ info->dma_in_irq_flags,
++ info->dma_in_irq_description,
++ info)) {
++ printk(KERN_WARNING "DMA irq '%s' busy; falling back to non-DMA mode\n", info->dma_in_irq_description);
++ /* Make sure we never try to use DMA in for the port again. */
++ info->dma_in_enabled = 0;
++ } else if (cris_request_dma(info->dma_in_nbr,
++ info->dma_in_irq_description,
++ DMA_VERBOSE_ON_ERROR,
++ info->dma_owner)) {
++ free_irq(info->dma_in_irq_nbr, info);
++ printk(KERN_WARNING "DMA '%s' busy; falling back to non-DMA mode\n", info->dma_in_irq_description);
++ /* Make sure we never try to use DMA in for the port again. */
++ info->dma_in_enabled = 0;
++ }
++#ifdef SERIAL_DEBUG_OPEN
++ else printk("DMA irq '%s' allocated\n", info->dma_in_irq_description);
++#endif
++ }
++ if (info->dma_out_enabled) {
++ if (request_irq(info->dma_out_irq_nbr,
++ tr_interrupt,
++ info->dma_out_irq_flags,
++ info->dma_out_irq_description,
++ info)) {
++ printk(KERN_WARNING "DMA irq '%s' busy; falling back to non-DMA mode\n", info->dma_out_irq_description);
++ /* Make sure we never try to use DMA out for the port again. */
++ info->dma_out_enabled = 0;
++ } else if (cris_request_dma(info->dma_out_nbr,
++ info->dma_out_irq_description,
++ DMA_VERBOSE_ON_ERROR,
++ info->dma_owner)) {
++ free_irq(info->dma_out_irq_nbr, info);
++ printk(KERN_WARNING "DMA '%s' busy; falling back to non-DMA mode\n", info->dma_out_irq_description);
++ /* Make sure we never try to use DMA in for the port again. */
++ info->dma_out_enabled = 0;
++ }
++#ifdef SERIAL_DEBUG_OPEN
++ else printk("DMA irq '%s' allocated\n", info->dma_out_irq_description);
++#endif
++ }
++ }
++
++ /*
+ * Start up the serial port
+ */
+
+ retval = startup(info);
+- if (retval)
+- return retval;
++ if (retval) {
++ if (allocated_resources) {
++ if (info->dma_out_enabled) {
++ cris_free_dma(info->dma_out_nbr, info->dma_out_irq_description);
++ free_irq(info->dma_out_irq_nbr,
++ info);
++ }
++ if (info->dma_in_enabled) {
++ cris_free_dma(info->dma_in_nbr, info->dma_in_irq_description);
++ free_irq(info->dma_in_irq_nbr,
++ info);
++ }
++ }
++ /* FIXME Decrease count info->count here too? */
++ return retval;
++
++ }
++
+
+ retval = block_til_ready(tty, filp, info);
+ if (retval) {
+@@ -4655,6 +4617,19 @@
+ printk("rs_open returning after block_til_ready with %d\n",
+ retval);
+ #endif
++ if (allocated_resources) {
++ if (info->dma_out_enabled) {
++ cris_free_dma(info->dma_out_nbr, info->dma_out_irq_description);
++ free_irq(info->dma_out_irq_nbr,
++ info);
++ }
++ if (info->dma_in_enabled) {
++ cris_free_dma(info->dma_in_nbr, info->dma_in_irq_description);
++ free_irq(info->dma_in_irq_nbr,
++ info);
++ }
++ }
++
+ return retval;
+ }
+
+@@ -4844,6 +4819,7 @@
+ .send_xchar = rs_send_xchar,
+ .wait_until_sent = rs_wait_until_sent,
+ .read_proc = rs_read_proc,
++ .tiocmset = rs_tiocmset
+ };
+
+ static int __init
+@@ -4863,7 +4839,22 @@
+ #if !defined(CONFIG_ETRAX_SERIAL_FAST_TIMER)
+ init_timer(&flush_timer);
+ flush_timer.function = timed_flush_handler;
+- mod_timer(&flush_timer, jiffies + CONFIG_ETRAX_SERIAL_RX_TIMEOUT_TICKS);
++ mod_timer(&flush_timer, jiffies + 5);
++#endif
++
++#if defined(CONFIG_ETRAX_RS485)
++#if defined(CONFIG_ETRAX_RS485_ON_PA)
++ if (cris_io_interface_allocate_pins(if_ser0, 'a', rs485_pa_bit, rs485_pa_bit)) {
++ printk(KERN_CRIT "ETRAX100LX serial: Could not allocate RS485 pin\n");
++ return -EBUSY;
++ }
++#endif
++#if defined(CONFIG_ETRAX_RS485_ON_PORT_G)
++ if (cris_io_interface_allocate_pins(if_ser0, 'g', rs485_pa_bit, rs485_port_g_bit)) {
++ printk(KERN_CRIT "ETRAX100LX serial: Could not allocate RS485 pin\n");
++ return -EBUSY;
++ }
++#endif
+ #endif
+
+ /* Initialize the tty_driver structure */
+@@ -4888,6 +4879,14 @@
+ /* do some initializing for the separate ports */
+
+ for (i = 0, info = rs_table; i < NR_PORTS; i++,info++) {
++ if (info->enabled) {
++ if (cris_request_io_interface(info->io_if, info->io_if_description)) {
++ printk(KERN_CRIT "ETRAX100LX async serial: Could not allocate IO pins for %s, port %d\n",
++ info->io_if_description,
++ i);
++ info->enabled = 0;
++ }
++ }
+ info->uses_dma_in = 0;
+ info->uses_dma_out = 0;
+ info->line = i;
+@@ -4939,64 +4938,16 @@
+ #endif
+
+ #ifndef CONFIG_SVINTO_SIM
++#ifndef CONFIG_ETRAX_KGDB
+ /* Not needed in simulator. May only complicate stuff. */
+ /* hook the irq's for DMA channel 6 and 7, serial output and input, and some more... */
+
+- if (request_irq(SERIAL_IRQ_NBR, ser_interrupt, IRQF_SHARED | IRQF_DISABLED, "serial ", NULL))
+- panic("irq8");
+-
+-#ifdef CONFIG_ETRAX_SERIAL_PORT0
+-#ifdef CONFIG_ETRAX_SERIAL_PORT0_DMA6_OUT
+- if (request_irq(SER0_DMA_TX_IRQ_NBR, tr_interrupt, IRQF_DISABLED, "serial 0 dma tr", NULL))
+- panic("irq22");
+-#endif
+-#ifdef CONFIG_ETRAX_SERIAL_PORT0_DMA7_IN
+- if (request_irq(SER0_DMA_RX_IRQ_NBR, rec_interrupt, IRQF_DISABLED, "serial 0 dma rec", NULL))
+- panic("irq23");
+-#endif
+-#endif
+-
+-#ifdef CONFIG_ETRAX_SERIAL_PORT1
+-#ifdef CONFIG_ETRAX_SERIAL_PORT1_DMA8_OUT
+- if (request_irq(SER1_DMA_TX_IRQ_NBR, tr_interrupt, IRQF_DISABLED, "serial 1 dma tr", NULL))
+- panic("irq24");
+-#endif
+-#ifdef CONFIG_ETRAX_SERIAL_PORT1_DMA9_IN
+- if (request_irq(SER1_DMA_RX_IRQ_NBR, rec_interrupt, IRQF_DISABLED, "serial 1 dma rec", NULL))
+- panic("irq25");
+-#endif
+-#endif
+-#ifdef CONFIG_ETRAX_SERIAL_PORT2
+- /* DMA Shared with par0 (and SCSI0 and ATA) */
+-#ifdef CONFIG_ETRAX_SERIAL_PORT2_DMA2_OUT
+- if (request_irq(SER2_DMA_TX_IRQ_NBR, tr_interrupt, IRQF_SHARED | IRQF_DISABLED, "serial 2 dma tr", NULL))
+- panic("irq18");
+-#endif
+-#ifdef CONFIG_ETRAX_SERIAL_PORT2_DMA3_IN
+- if (request_irq(SER2_DMA_RX_IRQ_NBR, rec_interrupt, IRQF_SHARED | IRQF_DISABLED, "serial 2 dma rec", NULL))
+- panic("irq19");
+-#endif
+-#endif
+-#ifdef CONFIG_ETRAX_SERIAL_PORT3
+- /* DMA Shared with par1 (and SCSI1 and Extern DMA 0) */
+-#ifdef CONFIG_ETRAX_SERIAL_PORT3_DMA4_OUT
+- if (request_irq(SER3_DMA_TX_IRQ_NBR, tr_interrupt, IRQF_SHARED | IRQF_DISABLED, "serial 3 dma tr", NULL))
+- panic("irq20");
+-#endif
+-#ifdef CONFIG_ETRAX_SERIAL_PORT3_DMA5_IN
+- if (request_irq(SER3_DMA_RX_IRQ_NBR, rec_interrupt, IRQF_SHARED | IRQF_DISABLED, "serial 3 dma rec", NULL))
+- panic("irq21");
+-#endif
+-#endif
++ if (request_irq(SERIAL_IRQ_NBR, ser_interrupt, IRQF_SHARED | IRQF_DISABLED, "serial ", driver))
++ panic("%s: Failed to request irq8", __FUNCTION__);
+
+-#ifdef CONFIG_ETRAX_SERIAL_FLUSH_DMA_FAST
+- if (request_irq(TIMER1_IRQ_NBR, timeout_interrupt, IRQF_SHARED | IRQF_DISABLED,
+- "fast serial dma timeout", NULL)) {
+- printk(KERN_CRIT "err: timer1 irq\n");
+- }
+ #endif
+ #endif /* CONFIG_SVINTO_SIM */
+- debug_write_function = rs_debug_write_function;
++
+ return 0;
+ }
+
+--- linux-2.6.19.2.orig/drivers/serial/crisv10.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/drivers/serial/crisv10.h 2006-10-13 14:44:38.000000000 +0200
+@@ -9,6 +9,8 @@
+
+ #include <linux/circ_buf.h>
+ #include <asm/termios.h>
++#include <asm/dma.h>
++#include <asm/arch/io_interface_mux.h>
+
+ /* Software state per channel */
+
+@@ -61,6 +63,19 @@
+ u8 dma_in_enabled:1; /* Set to 1 if DMA should be used */
+
+ /* end of fields defined in rs_table[] in .c-file */
++ int dma_owner;
++ unsigned int dma_in_nbr;
++ unsigned int dma_out_nbr;
++ unsigned int dma_in_irq_nbr;
++ unsigned int dma_out_irq_nbr;
++ unsigned long dma_in_irq_flags;
++ unsigned long dma_out_irq_flags;
++ char *dma_in_irq_description;
++ char *dma_out_irq_description;
++
++ enum cris_io_interface io_if;
++ char *io_if_description;
++
+ u8 uses_dma_in; /* Set to 1 if DMA is used */
+ u8 uses_dma_out; /* Set to 1 if DMA is used */
+ u8 forced_eop; /* a fifo eop has been forced */
+--- linux-2.6.19.2.orig/drivers/serial/crisv32.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/drivers/serial/crisv32.c 2007-01-05 09:59:53.000000000 +0100
+@@ -0,0 +1,2333 @@
++/* $Id: crisv32.c,v 1.78 2007/01/05 08:59:53 starvik Exp $
++ *
++ * Serial port driver for the ETRAX FS chip
++ *
++ * Copyright (C) 1998-2006 Axis Communications AB
++ *
++ * Many, many authors. Based once upon a time on serial.c for 16x50.
++ *
++ * Johan Adolfsson - port to ETRAX FS
++ * Mikael Starvik - port to serial_core framework
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/console.h>
++#include <linux/types.h>
++#include <linux/errno.h>
++#include <linux/serial_core.h>
++
++#include <asm/io.h>
++#include <asm/irq.h>
++#include <asm/system.h>
++#include <asm/uaccess.h>
++
++#include <asm/arch/dma.h>
++#include <asm/arch/system.h>
++#include <asm/arch/pinmux.h>
++#include <asm/arch/hwregs/dma.h>
++#include <asm/arch/hwregs/reg_rdwr.h>
++#include <asm/arch/hwregs/ser_defs.h>
++#include <asm/arch/hwregs/dma_defs.h>
++#include <asm/arch/hwregs/gio_defs.h>
++#include <asm/arch/hwregs/intr_vect_defs.h>
++#include <asm/arch/hwregs/reg_map.h>
++
++#define UART_NR 5 /* 4 ports + dummy port */
++#define SERIAL_RECV_DESCRIPTORS 8
++
++/* We only buffer 255 characters here, no need for more tx descriptors. */
++#define SERIAL_TX_DESCRIPTORS 4
++
++/* Kept for experimental purposes. */
++#define ETRAX_SER_FIFO_SIZE 1
++#define SERIAL_DESCR_BUF_SIZE 256
++#define regi_NULL 0
++#define DMA_WAIT_UNTIL_RESET(inst) \
++ do { \
++ reg_dma_rw_stat r; \
++ do { \
++ r = REG_RD(dma, (inst), rw_stat); \
++ } while (r.mode != regk_dma_rst); \
++ } while (0)
++
++/* Macro to set up control lines for a port. */
++#define SETUP_PINS(port) \
++ if (serial_cris_ports[port].used) { \
++ if (strcmp(CONFIG_ETRAX_SER##port##_DTR_BIT, "")) \
++ crisv32_io_get_name(&serial_cris_ports[port].dtr_pin, \
++ CONFIG_ETRAX_SER##port##_DTR_BIT); \
++ else \
++ serial_cris_ports[port].dtr_pin = dummy_pin; \
++ if (strcmp(CONFIG_ETRAX_SER##port##_DSR_BIT, "")) \
++ crisv32_io_get_name(&serial_cris_ports[port].dsr_pin, \
++ CONFIG_ETRAX_SER##port##_DSR_BIT); \
++ else \
++ serial_cris_ports[port].dsr_pin = dummy_pin; \
++ if (strcmp(CONFIG_ETRAX_SER##port##_RI_BIT, "")) \
++ crisv32_io_get_name(&serial_cris_ports[port].ri_pin, \
++ CONFIG_ETRAX_SER##port##_RI_BIT); \
++ else \
++ serial_cris_ports[port].ri_pin = dummy_pin; \
++ if (strcmp(CONFIG_ETRAX_SER##port##_CD_BIT, "")) \
++ crisv32_io_get_name(&serial_cris_ports[port].cd_pin, \
++ CONFIG_ETRAX_SER##port##_CD_BIT); \
++ else \
++ serial_cris_ports[port].cd_pin = dummy_pin; \
++ }
++
++/* Set a serial port register if anything has changed. */
++#define MODIFY_REG(instance, reg, var) \
++ if (REG_RD_INT(ser, instance, reg) \
++ != REG_TYPE_CONV(int, reg_ser_##reg, var)) \
++ REG_WR(ser, instance, reg, var);
++
++/*
++ * Regarding RS485 operation in crisv32 serial driver.
++ * ---------------------------------------------------
++ * RS485 can be run in two modes, full duplex using four wires (485FD) and
++ * half duplex using two wires (485HD). The default mode of each serial port
++ * is configured in the kernel configuration. The available modes are:
++ * RS-232, RS-485 half duplex, and RS-485 full duplex.
++ *
++ * In the 485HD mode the direction of the data bus must be able to switch.
++ * The direction of the transceiver is controlled by the RTS signal. Hence
++ * the auto_rts function in the ETRAX FS chip is enabled in this mode, which
++ * automatically toggle RTS when transmitting. The initial direction of the
++ * port is receiving.
++ *
++ * In the 485FD mode two transceivers will be used, one in each direction.
++ * Usually the hardware can handle both 485HD and 485FD, which implies that
++ * one of the transceivers can change direction. Consequently that transceiver
++ * must be tied to operate in the opposite direction of the other one, setting
++ * and keeping RTS to a fixed value do this.
++ *
++ * There are two special "ioctl" that can configure the ports. These two are
++ * left for backward compatible with older applications. The effects of using
++ * them are described below:
++ * The TIOCSERSETRS485:
++ * This ioctl sets a serial port in 232 mode to 485HD mode or vise versa. The
++ * state of the port is kept when closing the port. Note that this ioctl has no
++ * effect on a serial port in the 485FD mode.
++ * The TIOCSERWRRS485:
++ * This ioctl set a serial port in 232 mode to 485HD mode and writes the data
++ * "included" in the ioctl to the port. The port will then stay in 485HD mode.
++ * Using this ioctl on a serial port in the 485HD mode will transmit the data
++ * without changing the mode. Using this ioctl on a serial port in 485FD mode
++ * will not change the mode and simply send the data using the 485FD mode.
++ */
++
++#define TYPE_232 0
++#define TYPE_485HD 1
++#define TYPE_485FD 2
++
++struct etrax_recv_buffer {
++ struct etrax_recv_buffer *next;
++ unsigned short length;
++ unsigned char error;
++ unsigned char pad;
++
++ unsigned char buffer[0];
++};
++
++struct uart_cris_port {
++ struct uart_port port;
++
++ int initialized;
++ int used;
++ int irq;
++
++ /* Used to check if port enabled as well by testing for zero. */
++ reg_scope_instances regi_ser;
++ reg_scope_instances regi_dmain;
++ reg_scope_instances regi_dmaout;
++
++ struct crisv32_iopin dtr_pin;
++ struct crisv32_iopin dsr_pin;
++ struct crisv32_iopin ri_pin;
++ struct crisv32_iopin cd_pin;
++
++ struct dma_descr_context tr_context_descr
++ __attribute__ ((__aligned__(32)));
++ struct dma_descr_data tr_descr[SERIAL_TX_DESCRIPTORS]
++ __attribute__ ((__aligned__(32)));
++ struct dma_descr_context rec_context_descr
++ __attribute__ ((__aligned__(32)));
++ struct dma_descr_data rec_descr[SERIAL_RECV_DESCRIPTORS]
++ __attribute__ ((__aligned__(32)));
++
++ /* This is the first one in the list the HW is working on now. */
++ struct dma_descr_data* first_tx_descr;
++
++ /* This is the last one in the list the HW is working on now. */
++ struct dma_descr_data* last_tx_descr;
++
++ /* This is how many characters the HW is working on now. */
++ unsigned int tx_pending_chars;
++
++ int tx_started;
++ unsigned int cur_rec_descr;
++ struct etrax_recv_buffer *first_recv_buffer;
++ struct etrax_recv_buffer *last_recv_buffer;
++
++ unsigned int recv_cnt;
++ unsigned int max_recv_cnt;
++
++ /* The time for 1 char, in usecs. */
++ unsigned long char_time_usec;
++
++ /* Last tx usec in the jiffies. */
++ unsigned long last_tx_active_usec;
++
++ /* Last tx time in jiffies. */
++ unsigned long last_tx_active;
++
++ /* Last rx usec in the jiffies. */
++ unsigned long last_rx_active_usec;
++
++ /* Last rx time in jiffies. */
++ unsigned long last_rx_active;
++
++#ifdef CONFIG_ETRAX_RS485
++ /* RS-485 support, duh. */
++ struct rs485_control rs485;
++#endif
++ int port_type;
++};
++
++extern struct uart_driver serial_cris_driver;
++static struct uart_port *console_port;
++static int console_baud = 115200;
++static struct uart_cris_port serial_cris_ports[UART_NR] = {
++{
++#ifdef CONFIG_ETRAX_SERIAL_PORT0
++ .used = 1,
++ .irq = SER0_INTR_VECT,
++ .regi_ser = regi_ser0,
++ /*
++ * We initialize the dma stuff like this to get a compiler error
++ * if a CONFIG is missing
++ */
++ .regi_dmain =
++# ifdef CONFIG_ETRAX_SERIAL_PORT0_DMA7_IN
++ regi_dma7,
++# endif
++# ifdef CONFIG_ETRAX_SERIAL_PORT0_NO_DMA_IN
++ regi_NULL,
++# endif
++
++ .regi_dmaout =
++# ifdef CONFIG_ETRAX_SERIAL_PORT0_DMA6_OUT
++ regi_dma6,
++# endif
++# ifdef CONFIG_ETRAX_SERIAL_PORT0_NO_DMA_OUT
++ regi_NULL,
++# endif
++
++# ifdef CONFIG_ETRAX_RS485
++# ifdef CONFIG_ETRAX_SERIAL_PORT0_TYPE_485HD
++ .port_type = TYPE_485HD,
++# endif
++# ifdef CONFIG_ETRAX_SERIAL_PORT0_TYPE_485FD
++ .port_type = TYPE_485FD,
++# endif
++# endif
++#else
++ .regi_ser = regi_NULL,
++ .regi_dmain = regi_NULL,
++ .regi_dmaout = regi_NULL,
++#endif
++}, /* ttyS0 */
++{
++#ifdef CONFIG_ETRAX_SERIAL_PORT1
++ .used = 1,
++ .irq = SER1_INTR_VECT,
++ .regi_ser = regi_ser1,
++ .regi_dmain =
++# ifdef CONFIG_ETRAX_SERIAL_PORT1_DMA5_IN
++ regi_dma5,
++# endif
++# ifdef CONFIG_ETRAX_SERIAL_PORT1_NO_DMA_IN
++ regi_NULL,
++# endif
++
++ .regi_dmaout =
++# ifdef CONFIG_ETRAX_SERIAL_PORT1_DMA4_OUT
++ regi_dma4,
++# endif
++# ifdef CONFIG_ETRAX_SERIAL_PORT1_NO_DMA_OUT
++ regi_NULL,
++# endif
++
++# ifdef CONFIG_ETRAX_RS485
++# ifdef CONFIG_ETRAX_SERIAL_PORT1_TYPE_485HD
++ .port_type = TYPE_485HD,
++# endif
++# ifdef CONFIG_ETRAX_SERIAL_PORT1_TYPE_485FD
++ .port_type = TYPE_485FD,
++# endif
++# endif
++#else
++ .regi_ser = regi_NULL,
++ .regi_dmain = regi_NULL,
++ .regi_dmaout = regi_NULL,
++#endif
++}, /* ttyS1 */
++{
++#ifdef CONFIG_ETRAX_SERIAL_PORT2
++ .used = 1,
++ .irq = SER2_INTR_VECT,
++ .regi_ser = regi_ser2,
++ .regi_dmain =
++# ifdef CONFIG_ETRAX_SERIAL_PORT2_DMA3_IN
++ regi_dma3,
++# endif
++# ifdef CONFIG_ETRAX_SERIAL_PORT2_NO_DMA_IN
++ regi_NULL,
++# endif
++
++ .regi_dmaout =
++# ifdef CONFIG_ETRAX_SERIAL_PORT2_DMA2_OUT
++ regi_dma2,
++# endif
++# ifdef CONFIG_ETRAX_SERIAL_PORT2_NO_DMA_OUT
++ regi_NULL,
++# endif
++
++# ifdef CONFIG_ETRAX_RS485
++# ifdef CONFIG_ETRAX_SERIAL_PORT2_TYPE_485HD
++ .port_type = TYPE_485HD,
++# endif
++# ifdef CONFIG_ETRAX_SERIAL_PORT2_TYPE_485FD
++ .port_type = TYPE_485FD,
++# endif
++# endif
++#else
++ .regi_ser = regi_NULL,
++ .regi_dmain = regi_NULL,
++ .regi_dmaout = regi_NULL,
++#endif
++}, /* ttyS2 */
++{
++#ifdef CONFIG_ETRAX_SERIAL_PORT3
++ .used = 1,
++ .irq = SER3_INTR_VECT,
++ .regi_ser = regi_ser3,
++ .regi_dmain =
++# ifdef CONFIG_ETRAX_SERIAL_PORT3_DMA9_IN
++ regi_dma9,
++# endif
++# ifdef CONFIG_ETRAX_SERIAL_PORT3_NO_DMA_IN
++ regi_NULL,
++# endif
++
++ .regi_dmaout =
++# ifdef CONFIG_ETRAX_SERIAL_PORT3_DMA8_OUT
++ regi_dma8,
++# endif
++# ifdef CONFIG_ETRAX_SERIAL_PORT3_NO_DMA_OUT
++ regi_NULL,
++# endif
++
++# ifdef CONFIG_ETRAX_RS485
++# ifdef CONFIG_ETRAX_SERIAL_PORT3_TYPE_485HD
++ .port_type = TYPE_485HD,
++# endif
++# ifdef CONFIG_ETRAX_SERIAL_PORT3_TYPE_485FD
++ .port_type = TYPE_485FD,
++# endif
++# endif
++#else
++ .regi_ser = regi_NULL,
++ .regi_dmain = regi_NULL,
++ .regi_dmaout = regi_NULL,
++#endif
++}, /* ttyS3 */
++{
++#ifdef CONFIG_ETRAX_DEBUG_PORT_NULL
++ .used = 1,
++#endif
++ .regi_ser = regi_NULL
++} /* Dummy console port */
++
++};
++
++/* Dummy pin used for unused CD, DSR, DTR and RI signals. */
++static unsigned long io_dummy;
++static struct crisv32_ioport dummy_port =
++{
++ &io_dummy,
++ &io_dummy,
++ &io_dummy,
++ 18
++};
++static struct crisv32_iopin dummy_pin =
++{
++ &dummy_port,
++ 0
++};
++
++static int selected_console =
++#if defined(CONFIG_ETRAX_DEBUG_PORT0)
++0;
++#elif defined(CONFIG_ETRAX_DEBUG_PORT1)
++1;
++#elif defined(CONFIG_ETRAX_DEBUG_PORT2)
++2;
++#elif defined(CONFIG_ETRAX_DEBUG_PORT3)
++3;
++#else /* CONFIG_ETRAX_DEBUG_PORT_NULL */
++4;
++#endif
++
++extern void reset_watchdog(void);
++
++/*
++ * Interrupts are disabled on entering
++ */
++static void
++cris_console_write(struct console *co, const char *s, unsigned int count)
++{
++ struct uart_cris_port *up;
++ int i;
++ reg_ser_r_stat_din stat;
++ reg_ser_rw_tr_dma_en tr_dma_en, old;
++
++ up = &serial_cris_ports[selected_console];
++
++ /*
++ * This function isn't covered by the struct uart_ops, so we
++ * have to check manually that the port really is there,
++ * configured and live.
++ */
++ if (!up->regi_ser)
++ return;
++
++ /* Switch to manual mode. */
++ tr_dma_en = old = REG_RD (ser, up->regi_ser, rw_tr_dma_en);
++ if (tr_dma_en.en == regk_ser_yes) {
++ tr_dma_en.en = regk_ser_no;
++ REG_WR(ser, up->regi_ser, rw_tr_dma_en, tr_dma_en);
++ }
++
++ /* Send data. */
++ for (i = 0; i < count; i++) {
++ /* LF -> CRLF */
++ if (s[i] == '\n') {
++ do {
++ stat = REG_RD (ser, up->regi_ser, r_stat_din);
++ } while (!stat.tr_rdy);
++ REG_WR_INT (ser, up->regi_ser, rw_dout, '\r');
++ }
++ /* Wait until transmitter is ready and send. */
++ do {
++ stat = REG_RD (ser, up->regi_ser, r_stat_din);
++ } while (!stat.tr_rdy);
++ REG_WR_INT (ser, up->regi_ser, rw_dout, s[i]);
++
++ /* Feed watchdog, because this may take looong time. */
++ reset_watchdog();
++ }
++
++ /* Restore mode. */
++ if (tr_dma_en.en != old.en)
++ REG_WR(ser, up->regi_ser, rw_tr_dma_en, old);
++}
++
++static void cris_serial_port_init(struct uart_port *port, int line);
++static int __init
++cris_console_setup(struct console *co, char *options)
++{
++ struct uart_port *port;
++ int baud = 115200;
++ int bits = 8;
++ int parity = 'n';
++ int flow = 'n';
++
++ if (co->index >= UART_NR)
++ co->index = 0;
++ if (options)
++ selected_console = co->index;
++ port = &serial_cris_ports[selected_console].port;
++ console_port = port;
++
++ if (options)
++ uart_parse_options(options, &baud, &parity, &bits, &flow);
++ console_baud = baud;
++ cris_serial_port_init(port, selected_console);
++ co->index = port->line;
++ uart_set_options(port, co, baud, parity, bits, flow);
++
++ return 0;
++}
++
++static struct tty_driver*
++cris_console_device(struct console* co, int *index)
++{
++ struct uart_driver *p = co->data;
++ *index = selected_console;
++ return p->tty_driver;
++}
++
++static struct console cris_console = {
++ .name = "ttyS",
++ .write = cris_console_write,
++ .device = cris_console_device,
++ .setup = cris_console_setup,
++ .flags = CON_PRINTBUFFER,
++ .index = -1,
++ .data = &serial_cris_driver,
++};
++
++#define SERIAL_CRIS_CONSOLE &cris_console
++
++struct uart_driver serial_cris_driver = {
++ .owner = THIS_MODULE,
++ .driver_name = "serial",
++ .dev_name = "ttyS",
++ .major = TTY_MAJOR,
++ .minor = 64,
++ .nr = UART_NR,
++ .cons = SERIAL_CRIS_CONSOLE,
++};
++
++static int inline crisv32_serial_get_rts(struct uart_cris_port *up)
++{
++ reg_scope_instances regi_ser = up->regi_ser;
++ /*
++ * Return what the user has controlled rts to or
++ * what the pin is? (if auto_rts is used it differs during tx)
++ */
++ reg_ser_r_stat_din rstat = REG_RD(ser, regi_ser, r_stat_din);
++ return !(rstat.rts_n == regk_ser_active);
++}
++
++/*
++ * A set = 0 means 3.3V on the pin, bitvalue: 0=active, 1=inactive
++ * 0=0V , 1=3.3V
++ */
++static inline void crisv32_serial_set_rts(struct uart_cris_port *up, int set)
++{
++ reg_scope_instances regi_ser = up->regi_ser;
++
++#ifdef CONFIG_ETRAX_RS485
++ /* Never toggle RTS if port is in 485 mode. If port is in 485FD mode we
++ * do not want to send with the reciever and for 485HD mode auto_rts
++ * take care of the RTS for us.
++ */
++ if (!up->rs485.enabled) {
++#else
++ {
++#endif
++ unsigned long flags;
++ reg_ser_rw_rec_ctrl rec_ctrl;
++
++ local_irq_save(flags);
++ rec_ctrl = REG_RD(ser, regi_ser, rw_rec_ctrl);
++ if (set)
++ rec_ctrl.rts_n = regk_ser_active;
++ else
++ rec_ctrl.rts_n = regk_ser_inactive;
++ REG_WR(ser, regi_ser, rw_rec_ctrl, rec_ctrl);
++ local_irq_restore(flags);
++ }
++}
++
++/* Input */
++static int inline crisv32_serial_get_cts(struct uart_cris_port *up)
++{
++ reg_scope_instances regi_ser = up->regi_ser;
++ reg_ser_r_stat_din rstat = REG_RD(ser, regi_ser, r_stat_din);
++ return (rstat.cts_n == regk_ser_active);
++}
++
++/*
++ * Send a single character for XON/XOFF purposes. We do it in this separate
++ * function instead of the alternative support port.x_char, in the ...start_tx
++ * function, so we don't mix up this case with possibly enabling transmission
++ * of queued-up data (in case that's disabled after *receiving* an XOFF or
++ * negative CTS). This function is used for both DMA and non-DMA case; see HW
++ * docs specifically blessing sending characters manually when DMA for
++ * transmission is enabled and running. We may be asked to transmit despite
++ * the transmitter being disabled by a ..._stop_tx call so we need to enable
++ * it temporarily but restore the state afterwards.
++ *
++ * Beware: I'm not sure how the RS-485 stuff is supposed to work. Using
++ * XON/XOFF seems problematic if there are several controllers, but if it's
++ * actually RS-422 (multi-drop; one sender and multiple receivers), it might
++ * Just Work, so don't bail out just because it looks a little suspicious.
++ */
++
++void serial_cris_send_xchar(struct uart_port *port, char ch)
++{
++ struct uart_cris_port *up = (struct uart_cris_port *)port;
++ reg_ser_rw_dout dout = { .data = ch };
++ reg_ser_rw_ack_intr ack_intr = { .tr_rdy = regk_ser_yes };
++ reg_ser_r_stat_din rstat;
++ reg_ser_rw_tr_ctrl prev_tr_ctrl, tr_ctrl;
++ reg_scope_instances regi_ser = up->regi_ser;
++ unsigned long flags;
++
++ /*
++ * Wait for tr_rdy in case a character is already being output. Make
++ * sure we have integrity between the register reads and the writes
++ * below, but don't busy-wait with interrupts off and the port lock
++ * taken.
++ */
++ spin_lock_irqsave(&port->lock, flags);
++ do {
++ spin_unlock_irqrestore(&port->lock, flags);
++ spin_lock_irqsave(&port->lock, flags);
++ prev_tr_ctrl = tr_ctrl = REG_RD(ser, regi_ser, rw_tr_ctrl);
++ rstat = REG_RD(ser, regi_ser, r_stat_din);
++ } while (!rstat.tr_rdy);
++
++ /*
++ * Ack an interrupt if one was just issued for the previous character
++ * that was output. This is required for non-DMA as the interrupt is
++ * used as the only indicator that the transmitter is ready and it
++ * isn't while this x_char is being transmitted.
++ */
++ REG_WR(ser, regi_ser, rw_ack_intr, ack_intr);
++
++ /* Enable the transmitter in case it was disabled. */
++ tr_ctrl.stop = 0;
++ REG_WR(ser, regi_ser, rw_tr_ctrl, tr_ctrl);
++
++ /*
++ * Finally, send the blessed character; nothing should stop it now,
++ * except for an xoff-detected state, which we'll handle below.
++ */
++ REG_WR(ser, regi_ser, rw_dout, dout);
++ up->port.icount.tx++;
++
++ /* There might be an xoff state to clear. */
++ rstat = REG_RD(ser, up->regi_ser, r_stat_din);
++
++ /*
++ * Clear any xoff state that *may* have been there to
++ * inhibit transmission of the character.
++ */
++ if (rstat.xoff_detect) {
++ reg_ser_rw_xoff_clr xoff_clr = { .clr = 1 };
++ REG_WR(ser, regi_ser, rw_xoff_clr, xoff_clr);
++ reg_ser_rw_tr_dma_en tr_dma_en
++ = REG_RD(ser, regi_ser, rw_tr_dma_en);
++
++ /*
++ * If we had an xoff state but cleared it, instead sneak in a
++ * disabled state for the transmitter, after the character we
++ * sent. Thus we keep the port disabled, just as if the xoff
++ * state was still in effect (or actually, as if stop_tx had
++ * been called, as we stop DMA too).
++ */
++ prev_tr_ctrl.stop = 1;
++
++ tr_dma_en.en = 0;
++ REG_WR(ser, regi_ser, rw_tr_dma_en, tr_dma_en);
++ }
++
++ /* Restore "previous" enabled/disabled state of the transmitter. */
++ REG_WR(ser, regi_ser, rw_tr_ctrl, prev_tr_ctrl);
++
++ spin_unlock_irqrestore(&port->lock, flags);
++}
++
++static void transmit_chars_dma(struct uart_cris_port *up);
++
++/*
++ * Do not spin_lock_irqsave or disable interrupts by other means here; it's
++ * already done by the caller.
++ */
++
++static void serial_cris_start_tx(struct uart_port *port)
++{
++ struct uart_cris_port *up = (struct uart_cris_port *)port;
++ reg_scope_instances regi_ser = up->regi_ser;
++ reg_ser_rw_tr_ctrl tr_ctrl;
++
++ tr_ctrl = REG_RD(ser, regi_ser, rw_tr_ctrl);
++ tr_ctrl.stop = regk_ser_no;
++ REG_WR(ser, regi_ser, rw_tr_ctrl, tr_ctrl);
++ if (!up->regi_dmaout) {
++ reg_ser_rw_intr_mask intr_mask =
++ REG_RD(ser, regi_ser, rw_intr_mask);
++ intr_mask.tr_rdy = regk_ser_yes;
++ REG_WR(ser, regi_ser, rw_intr_mask, intr_mask);
++ } else {
++ /*
++ * We're called possibly to re-enable transmission after it
++ * has been disabled. If so, DMA needs to be re-enabled.
++ */
++ reg_ser_rw_tr_dma_en tr_dma_en = { .en = 1 };
++ REG_WR(ser, regi_ser, rw_tr_dma_en, tr_dma_en);
++ transmit_chars_dma(up);
++ }
++}
++
++/*
++ * This function handles both the DMA and non-DMA case by ordering the
++ * transmitter to stop of after the current character. We don't need to wait
++ * for any such character to be completely transmitted; we do that where it
++ * matters, like in serial_cris_set_termios. Don't busy-wait here; see
++ * Documentation/serial/driver: this function is called within
++ * spin_lock_irq{,save} and thus separate ones would be disastrous (when SMP).
++ * There's no documented need to set the txd pin to any particular value;
++ * break setting is controlled solely by serial_cris_break_ctl.
++ */
++
++static void serial_cris_stop_tx(struct uart_port *port)
++{
++ struct uart_cris_port *up = (struct uart_cris_port *)port;
++ reg_scope_instances regi_ser = up->regi_ser;
++ reg_ser_rw_tr_ctrl tr_ctrl;
++ reg_ser_rw_intr_mask intr_mask;
++ reg_ser_rw_tr_dma_en tr_dma_en = {0};
++ reg_ser_rw_xoff_clr xoff_clr = {0};
++
++ /*
++ * For the non-DMA case, we'd get a tr_rdy interrupt that we're not
++ * interested in as we're not transmitting any characters. For the
++ * DMA case, that interrupt is already turned off, but no reason to
++ * waste code on conditionals here.
++ */
++ intr_mask = REG_RD(ser, regi_ser, rw_intr_mask);
++ intr_mask.tr_rdy = regk_ser_no;
++ REG_WR(ser, regi_ser, rw_intr_mask, intr_mask);
++
++ tr_ctrl = REG_RD(ser, regi_ser, rw_tr_ctrl);
++ tr_ctrl.stop = 1;
++ REG_WR(ser, regi_ser, rw_tr_ctrl, tr_ctrl);
++
++ /*
++ * Always clear possible hardware xoff-detected state here, no need to
++ * unnecessary consider mctrl settings and when they change. We clear
++ * it here rather than in start_tx: both functions are called as the
++ * effect of XOFF processing, but start_tx is also called when upper
++ * levels tell the driver that there are more characters to send, so
++ * avoid adding code there.
++ */
++ xoff_clr.clr = 1;
++ REG_WR(ser, regi_ser, rw_xoff_clr, xoff_clr);
++
++ /*
++ * Disable transmitter DMA, so that if we're in XON/XOFF, we can send
++ * those single characters without also giving go-ahead for queued up
++ * DMA data.
++ */
++ tr_dma_en.en = 0;
++ REG_WR(ser, regi_ser, rw_tr_dma_en, tr_dma_en);
++}
++
++static void serial_cris_stop_rx(struct uart_port *port)
++{
++ struct uart_cris_port *up = (struct uart_cris_port *)port;
++ reg_scope_instances regi_ser = up->regi_ser;
++ reg_ser_rw_rec_ctrl rec_ctrl = REG_RD(ser, regi_ser, rw_rec_ctrl);
++
++ rec_ctrl.en = regk_ser_no;
++ REG_WR(ser, regi_ser, rw_rec_ctrl, rec_ctrl);
++}
++
++static void serial_cris_enable_ms(struct uart_port *port)
++{
++}
++
++static void check_modem_status(struct uart_cris_port *up)
++{
++}
++
++static unsigned int serial_cris_tx_empty(struct uart_port *port)
++{
++ struct uart_cris_port *up = (struct uart_cris_port *)port;
++ unsigned long flags;
++ unsigned int ret;
++ reg_ser_r_stat_din rstat = {0};
++
++ spin_lock_irqsave(&up->port.lock, flags);
++ if (up->regi_dmaout) {
++ /*
++ * For DMA, before looking at r_stat, we need to check that we
++ * either haven't actually started or that end-of-list is
++ * reached, else a tr_empty indication is just an internal
++ * state. The caller qualifies, if needed, that the
++ * port->info.xmit buffer is empty, so we don't need to
++ * check that.
++ */
++ reg_dma_rw_stat status = REG_RD(dma, up->regi_dmaout, rw_stat);
++
++ if (!up->tx_started) {
++ ret = 1;
++ goto done;
++ }
++
++ if (status.list_state != regk_dma_data_at_eol) {
++ ret = 0;
++ goto done;
++ }
++ }
++
++ rstat = REG_RD(ser, up->regi_ser, r_stat_din);
++ ret = rstat.tr_empty ? TIOCSER_TEMT : 0;
++
++ done:
++ spin_unlock_irqrestore(&up->port.lock, flags);
++ return ret;
++}
++static unsigned int serial_cris_get_mctrl(struct uart_port *port)
++{
++ struct uart_cris_port *up = (struct uart_cris_port *)port;
++ unsigned int ret;
++
++ ret = 0;
++ if (crisv32_serial_get_rts(up))
++ ret |= TIOCM_RTS;
++ if (crisv32_io_rd(&up->dtr_pin))
++ ret |= TIOCM_DTR;
++ if (crisv32_io_rd(&up->cd_pin))
++ ret |= TIOCM_CD;
++ if (crisv32_io_rd(&up->ri_pin))
++ ret |= TIOCM_RI;
++ if (!crisv32_io_rd(&up->dsr_pin))
++ ret |= TIOCM_DSR;
++ if (crisv32_serial_get_cts(up))
++ ret |= TIOCM_CTS;
++ return ret;
++}
++
++static void serial_cris_set_mctrl(struct uart_port *port, unsigned int mctrl)
++{
++ struct uart_cris_port *up = (struct uart_cris_port *)port;
++
++ crisv32_serial_set_rts(up, mctrl & TIOCM_RTS ? 1 : 0);
++ crisv32_io_set(&up->dtr_pin, mctrl & TIOCM_DTR ? 1 : 0);
++ crisv32_io_set(&up->ri_pin, mctrl & TIOCM_RNG ? 1 : 0);
++ crisv32_io_set(&up->cd_pin, mctrl & TIOCM_CD ? 1 : 0);
++}
++
++static void serial_cris_break_ctl(struct uart_port *port, int break_state)
++{
++ struct uart_cris_port *up = (struct uart_cris_port *)port;
++ unsigned long flags;
++ reg_ser_rw_tr_ctrl tr_ctrl;
++ reg_ser_rw_tr_dma_en tr_dma_en;
++ reg_ser_rw_intr_mask intr_mask;
++
++ spin_lock_irqsave(&up->port.lock, flags);
++ tr_ctrl = REG_RD(ser, up->regi_ser, rw_tr_ctrl);
++ tr_dma_en = REG_RD(ser, up->regi_ser, rw_tr_dma_en);
++ intr_mask = REG_RD(ser, up->regi_ser, rw_intr_mask);
++
++ if (break_state != 0) { /* Send break */
++ /*
++ * We need to disable DMA (if used) or tr_rdy interrupts if no
++ * DMA. No need to make this conditional on use of DMA;
++ * disabling will be a no-op for the other mode.
++ */
++ intr_mask.tr_rdy = regk_ser_no;
++ tr_dma_en.en = 0;
++
++ /*
++ * Stop transmission and set the txd pin to 0 after the
++ * current character. The txd setting will take effect after
++ * any current transmission has completed.
++ */
++ tr_ctrl.stop = 1;
++ tr_ctrl.txd = 0;
++ } else {
++ /* Re-enable either transmit DMA or the serial interrupt. */
++ if (up->regi_dmaout)
++ tr_dma_en.en = 1;
++ else
++ intr_mask.tr_rdy = regk_ser_yes;
++
++
++ tr_ctrl.stop = 0;
++ tr_ctrl.txd = 1;
++ }
++ REG_WR(ser, up->regi_ser, rw_tr_ctrl, tr_ctrl);
++ REG_WR(ser, up->regi_ser, rw_tr_dma_en, tr_dma_en);
++ REG_WR(ser, up->regi_ser, rw_intr_mask, intr_mask);
++
++ spin_unlock_irqrestore(&up->port.lock, flags);
++}
++
++/*
++ * The output DMA channel is free - use it to send as many chars as
++ * possible.
++ */
++
++static void
++transmit_chars_dma(struct uart_cris_port *up)
++{
++ struct dma_descr_data *descr, *pending_descr, *dmapos;
++ struct dma_descr_data *last_tx_descr;
++ struct circ_buf *xmit = &up->port.info->xmit;
++ unsigned int sentl = 0;
++ reg_dma_rw_ack_intr ack_intr = { .data = regk_dma_yes };
++ reg_dma_rw_stat status;
++ reg_scope_instances regi_dmaout = up->regi_dmaout;
++ unsigned int chars_in_q;
++ unsigned int chars_to_send;
++
++ /* Acknowledge dma data descriptor irq, if there was one. */
++ REG_WR(dma, regi_dmaout, rw_ack_intr, ack_intr);
++
++ /*
++ * First get the amount of bytes sent during the last DMA transfer,
++ * and update xmit accordingly.
++ */
++ status = REG_RD(dma, regi_dmaout, rw_stat);
++ if (status.list_state == regk_dma_data_at_eol || !up->tx_started)
++ dmapos = phys_to_virt((int)up->last_tx_descr->next);
++ else
++ dmapos = phys_to_virt(REG_RD_INT(dma, regi_dmaout, rw_data));
++
++ pending_descr = up->first_tx_descr;
++ while (pending_descr != dmapos) {
++ sentl += pending_descr->after - pending_descr->buf;
++ pending_descr->after = pending_descr->buf = NULL;
++ pending_descr = phys_to_virt((int)pending_descr->next);
++ }
++
++ up->first_tx_descr = pending_descr;
++ last_tx_descr = up->last_tx_descr;
++
++ /* Update stats. */
++ up->port.icount.tx += sentl;
++
++ up->tx_pending_chars -= sentl;
++
++ /* Update xmit buffer. */
++ xmit->tail = (xmit->tail + sentl) & (UART_XMIT_SIZE - 1);
++
++ /*
++ * Find out the largest amount of consecutive bytes we want to send
++ * now.
++ */
++ chars_in_q = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE);
++
++ if (chars_in_q == 0)
++ /* Tell upper layers that we're now idle. */
++ goto done;
++
++ /* Some of those characters are actually pending output. */
++ chars_to_send = chars_in_q - up->tx_pending_chars;
++
++ /*
++ * Clamp the new number of pending chars to the advertised
++ * one.
++ */
++ if (chars_to_send + up->tx_pending_chars > up->port.fifosize)
++ chars_to_send = up->port.fifosize - up->tx_pending_chars;
++
++ /* If we don't want to send any, we're done. */
++ if (chars_to_send == 0)
++ goto done;
++
++ descr = phys_to_virt((int)last_tx_descr->next);
++
++ /*
++ * We can't send anything if we could make the condition in
++ * the while-loop above (reaping finished descriptors) be met
++ * immediately before the first iteration. However, don't
++ * mistake the full state for the empty state.
++ */
++ if ((descr == up->first_tx_descr && up->tx_pending_chars != 0)
++ || descr->next == up->first_tx_descr)
++ goto done;
++
++ /* Set up the descriptor for output. */
++ descr->buf = (void*)virt_to_phys(xmit->buf + xmit->tail
++ + up->tx_pending_chars);
++ descr->after = descr->buf + chars_to_send;
++ descr->eol = 1;
++ descr->out_eop = 0;
++ descr->intr = 1;
++ descr->wait = 0;
++ descr->in_eop = 0;
++ descr->md = 0;
++ /*
++ * Make sure GCC doesn't move this eol clear before the eol set
++ * above.
++ */
++ barrier();
++ last_tx_descr->eol = 0;
++
++ up->last_tx_descr = descr;
++ up->tx_pending_chars += chars_to_send;
++
++ if (!up->tx_started) {
++ up->tx_started = 1;
++ up->tr_context_descr.next = 0;
++ up->tr_context_descr.saved_data
++ = (dma_descr_data*)virt_to_phys(descr);
++ up->tr_context_descr.saved_data_buf = descr->buf;
++ DMA_START_CONTEXT(regi_dmaout,
++ virt_to_phys(&up->tr_context_descr));
++ } else
++ DMA_CONTINUE_DATA(regi_dmaout);
++
++ /* DMA is now running (hopefully). */
++
++ done:
++ if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
++ uart_write_wakeup(&up->port);
++}
++
++static void
++transmit_chars_no_dma(struct uart_cris_port *up)
++{
++ int count;
++ struct circ_buf *xmit = &up->port.info->xmit;
++
++ reg_scope_instances regi_ser = up->regi_ser;
++ reg_ser_r_stat_din rstat;
++ reg_ser_rw_ack_intr ack_intr = { .tr_rdy = regk_ser_yes };
++
++ if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {
++ /* No more to send, so disable the interrupt. */
++ reg_ser_rw_intr_mask intr_mask;
++ intr_mask = REG_RD(ser, regi_ser, rw_intr_mask);
++ intr_mask.tr_rdy = 0;
++ intr_mask.tr_empty = 0;
++ REG_WR(ser, regi_ser, rw_intr_mask, intr_mask);
++ return;
++ }
++
++ count = ETRAX_SER_FIFO_SIZE;
++ do {
++ reg_ser_rw_dout dout = { .data = xmit->buf[xmit->tail] };
++ REG_WR(ser, regi_ser, rw_dout, dout);
++ REG_WR(ser, regi_ser, rw_ack_intr, ack_intr);
++ xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE-1);
++ up->port.icount.tx++;
++ if (xmit->head == xmit->tail)
++ break;
++ rstat = REG_RD(ser, regi_ser, r_stat_din);
++ } while ((--count > 0) && rstat.tr_rdy);
++
++ if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
++ uart_write_wakeup(&up->port);
++} /* transmit_chars_no_dma */
++
++static struct etrax_recv_buffer *
++alloc_recv_buffer(unsigned int size)
++{
++ struct etrax_recv_buffer *buffer;
++
++ if (!(buffer = kmalloc(sizeof *buffer + size, GFP_ATOMIC)))
++ panic("%s: Could not allocate %d bytes buffer\n",
++ __FUNCTION__, size);
++
++ buffer->next = NULL;
++ buffer->length = 0;
++ buffer->error = TTY_NORMAL;
++
++ return buffer;
++}
++
++static void
++append_recv_buffer(struct uart_cris_port *up,
++ struct etrax_recv_buffer *buffer)
++{
++ unsigned long flags;
++
++ local_irq_save(flags);
++
++ if (!up->first_recv_buffer)
++ up->first_recv_buffer = buffer;
++ else
++ up->last_recv_buffer->next = buffer;
++
++ up->last_recv_buffer = buffer;
++
++ up->recv_cnt += buffer->length;
++ if (up->recv_cnt > up->max_recv_cnt)
++ up->max_recv_cnt = up->recv_cnt;
++
++ local_irq_restore(flags);
++}
++
++static int
++add_char_and_flag(struct uart_cris_port *up, unsigned char data,
++ unsigned char flag)
++{
++ struct etrax_recv_buffer *buffer;
++
++ buffer = alloc_recv_buffer(4);
++ buffer->length = 1;
++ buffer->error = flag;
++ buffer->buffer[0] = data;
++
++ append_recv_buffer(up, buffer);
++
++ up->port.icount.rx++;
++
++ return 1;
++}
++
++static void
++flush_to_flip_buffer(struct uart_cris_port *up)
++{
++ struct tty_struct *tty;
++ struct etrax_recv_buffer *buffer;
++
++ tty = up->port.info->tty;
++ if (!up->first_recv_buffer || !tty)
++ return;
++
++ while ((buffer = up->first_recv_buffer)) {
++ unsigned int count = (unsigned int)
++ tty_insert_flip_string(tty, buffer->buffer,
++ buffer->length);
++
++ up->recv_cnt -= count;
++
++ if (count == buffer->length) {
++ up->first_recv_buffer = buffer->next;
++ kfree(buffer);
++ } else {
++ buffer->length -= count;
++ memmove(buffer->buffer, buffer->buffer + count,
++ buffer->length);
++ buffer->error = TTY_NORMAL;
++ }
++ }
++
++ if (!up->first_recv_buffer)
++ up->last_recv_buffer = NULL;
++
++ /* This call includes a check for low-latency. */
++ tty_flip_buffer_push(tty);
++}
++
++static unsigned int
++handle_descr_data(struct uart_cris_port *up, struct dma_descr_data *descr,
++ unsigned int recvl)
++{
++ struct etrax_recv_buffer *buffer
++ = phys_to_virt((unsigned long)descr->buf) - sizeof *buffer;
++
++ if (up->recv_cnt + recvl > 65536) {
++ printk(KERN_ERR "Too much pending incoming data on %s!"
++ " Dropping %u bytes.\n", up->port.info->tty->name,
++ recvl);
++ return 0;
++ }
++
++ buffer->length = recvl;
++
++ append_recv_buffer(up, buffer);
++
++ flush_to_flip_buffer(up);
++
++ buffer = alloc_recv_buffer(SERIAL_DESCR_BUF_SIZE);
++ descr->buf = (void*)virt_to_phys(buffer->buffer);
++ descr->after = descr->buf + SERIAL_DESCR_BUF_SIZE;
++
++ return recvl;
++}
++
++static unsigned int
++handle_all_descr_data(struct uart_cris_port *up)
++{
++ struct dma_descr_data *descr
++ = &up->rec_descr[(up->cur_rec_descr - 1)
++ % SERIAL_RECV_DESCRIPTORS];
++ struct dma_descr_data *prev_descr;
++ unsigned int recvl;
++ unsigned int ret = 0;
++ reg_scope_instances regi_dmain = up->regi_dmain;
++
++ while (1) {
++ prev_descr = descr;
++ descr = &up->rec_descr[up->cur_rec_descr];
++
++ if (descr == phys_to_virt(REG_RD(dma, regi_dmain, rw_data)))
++ break;
++
++ if (++up->cur_rec_descr == SERIAL_RECV_DESCRIPTORS)
++ up->cur_rec_descr = 0;
++
++ /* Find out how many bytes were read. */
++ recvl = descr->after - descr->buf;
++
++ /* Update stats. */
++ up->port.icount.rx += recvl;
++
++ ret += handle_descr_data(up, descr, recvl);
++ descr->eol = 1;
++ /*
++ * Make sure GCC doesn't move this eol clear before the
++ * eol set above.
++ */
++ barrier();
++ prev_descr->eol = 0;
++ flush_dma_descr(descr,1); // Cache bug workaround
++ flush_dma_descr(prev_descr,0); // Cache bug workaround
++ }
++
++ return ret;
++}
++
++static void
++receive_chars_dma(struct uart_cris_port *up)
++{
++ reg_ser_r_stat_din rstat;
++ reg_dma_rw_ack_intr ack_intr = {0};
++
++ /* Acknowledge both dma_descr and dma_eop irq. */
++ ack_intr.data = 1;
++ ack_intr.in_eop = 1;
++ REG_WR(dma, up->regi_dmain, rw_ack_intr, ack_intr);
++
++ handle_all_descr_data(up);
++
++ /* Read the status register to detect errors. */
++ rstat = REG_RD(ser, up->regi_ser, r_stat_din);
++
++ if (rstat.framing_err | rstat.par_err | rstat.orun) {
++ /*
++ * If we got an error, we must reset it by reading the
++ * rs_stat_din register and put the data in buffer manually.
++ */
++ reg_ser_rs_stat_din stat_din;
++ stat_din = REG_RD(ser, up->regi_ser, rs_stat_din);
++
++ if (stat_din.par_err)
++ add_char_and_flag(up, stat_din.data, TTY_PARITY);
++ else if (stat_din.orun)
++ add_char_and_flag(up, stat_din.data, TTY_OVERRUN);
++ else if (stat_din.framing_err)
++ add_char_and_flag(up, stat_din.data, TTY_FRAME);
++ }
++
++ /* Restart the receiving DMA, in case it got stuck on an EOL. */
++ DMA_CONTINUE_DATA(up->regi_dmain);
++}
++
++void receive_chars_no_dma(struct uart_cris_port *up)
++{
++ reg_ser_rs_stat_din stat_din;
++ reg_ser_r_stat_din rstat;
++ struct tty_struct *tty;
++ struct uart_icount *icount;
++ int max_count = 16;
++ char flag;
++ reg_ser_rw_ack_intr ack_intr = { 0 };
++
++ rstat = REG_RD(ser, up->regi_ser, r_stat_din);
++ up->last_rx_active_usec = GET_JIFFIES_USEC();
++ up->last_rx_active = jiffies;
++ icount = &up->port.icount;
++ tty = up->port.info->tty;
++
++ do {
++ stat_din = REG_RD(ser, up->regi_ser, rs_stat_din);
++
++ flag = TTY_NORMAL;
++ ack_intr.dav = 1;
++ REG_WR(ser, up->regi_ser, rw_ack_intr, ack_intr);
++ icount->rx++;
++
++ if (stat_din.framing_err | stat_din.par_err | stat_din.orun) {
++ if (stat_din.data == 0x00 &&
++ stat_din.framing_err) {
++ /* Most likely a break. */
++ flag = TTY_BREAK;
++ icount->brk++;
++ } else if (stat_din.par_err) {
++ flag = TTY_PARITY;
++ icount->parity++;
++ } else if (stat_din.orun) {
++ flag = TTY_OVERRUN;
++ icount->overrun++;
++ } else if (stat_din.framing_err) {
++ flag = TTY_FRAME;
++ icount->frame++;
++ }
++ }
++
++ /*
++ * If this becomes important, we probably *could* handle this
++ * gracefully by keeping track of the unhandled character.
++ */
++ if (!tty_insert_flip_char(tty, stat_din.data, flag))
++ panic("%s: No tty buffer space", __FUNCTION__);
++ rstat = REG_RD(ser, up->regi_ser, r_stat_din);
++ } while (rstat.dav && (max_count-- > 0));
++ spin_unlock(&up->port.lock);
++ tty_flip_buffer_push(tty);
++ spin_lock(&up->port.lock);
++} /* receive_chars_no_dma */
++
++/*
++ * DMA output channel interrupt handler.
++ * this interrupt is called from DMA2(ser2), DMA8(ser3), DMA6(ser0) or
++ * DMA4(ser1) when they have finished a descriptor with the intr flag set.
++ */
++
++static irqreturn_t
++dma_tr_interrupt(int irq, void *dev_id, struct pt_regs * regs)
++{
++ struct uart_cris_port *up = (struct uart_cris_port *)dev_id;
++ reg_dma_r_masked_intr masked_intr;
++ reg_scope_instances regi_dmaout;
++ int handled = 0;
++
++ spin_lock(&up->port.lock);
++ regi_dmaout = up->regi_dmaout;
++ if (!regi_dmaout) {
++ spin_unlock(&up->port.lock);
++ return IRQ_NONE;
++ }
++
++ /*
++ * Check for dma_descr (don't need to check for dma_eop in
++ * output DMA for serial).
++ */
++ masked_intr = REG_RD(dma, regi_dmaout, r_masked_intr);
++
++ if (masked_intr.data) {
++ /* We can send a new dma bunch. make it so. */
++
++ /*
++ * Read jiffies_usec first.
++ * We want this time to be as late as possible.
++ */
++ up->last_tx_active_usec = GET_JIFFIES_USEC();
++ up->last_tx_active = jiffies;
++ transmit_chars_dma(up);
++ handled = 1;
++ }
++ check_modem_status(up);
++ spin_unlock(&up->port.lock);
++ return IRQ_RETVAL(handled);
++}
++
++/* DMA input channel interrupt handler. */
++
++static irqreturn_t
++dma_rec_interrupt(int irq, void *dev_id, struct pt_regs * regs)
++{
++ struct uart_cris_port *up = (struct uart_cris_port *)dev_id;
++ reg_dma_r_masked_intr masked_intr;
++ reg_scope_instances regi_dmain;
++ int handled = 0;
++
++ spin_lock(&up->port.lock);
++ regi_dmain = up->regi_dmain;
++ if (!regi_dmain) {
++ spin_unlock(&up->port.lock);
++ return IRQ_NONE;
++ }
++
++ /* Check for both dma_eop and dma_descr for the input dma channel. */
++ masked_intr = REG_RD(dma, regi_dmain, r_masked_intr);
++ if (masked_intr.data || masked_intr.in_eop) {
++ /* We have received something. */
++ receive_chars_dma(up);
++ handled = 1;
++ }
++ check_modem_status(up);
++ spin_unlock(&up->port.lock);
++ return IRQ_RETVAL(handled);
++}
++
++/* "Normal" serial port interrupt handler - both rx and tx. */
++
++static irqreturn_t
++ser_interrupt(int irq, void *dev_id, struct pt_regs *regs)
++{
++ struct uart_cris_port *up = (struct uart_cris_port *)dev_id;
++ reg_scope_instances regi_ser;
++ int handled = 0;
++
++ spin_lock(&up->port.lock);
++ if (up->regi_dmain && up->regi_dmaout) {
++ spin_unlock(&up->port.lock);
++ return IRQ_NONE;
++ }
++
++ regi_ser = up->regi_ser;
++
++ if (regi_ser) {
++ reg_ser_r_masked_intr masked_intr;
++ masked_intr = REG_RD(ser, regi_ser, r_masked_intr);
++ /*
++ * Check what interrupts are active before taking
++ * actions. If DMA is used the interrupt shouldn't
++ * be enabled.
++ */
++ if (masked_intr.dav) {
++ receive_chars_no_dma(up);
++ handled = 1;
++ }
++ check_modem_status(up);
++
++ if (masked_intr.tr_rdy) {
++ transmit_chars_no_dma(up);
++ handled = 1;
++ }
++ }
++ spin_unlock(&up->port.lock);
++ return IRQ_RETVAL(handled);
++} /* ser_interrupt */
++
++static int start_recv_dma(struct uart_cris_port *up)
++{
++ struct dma_descr_data *descr = up->rec_descr;
++ struct etrax_recv_buffer *buffer;
++ int i;
++
++ /* Set up the receiving descriptors. */
++ for (i = 0; i < SERIAL_RECV_DESCRIPTORS; i++) {
++ buffer = alloc_recv_buffer(SERIAL_DESCR_BUF_SIZE);
++ descr[i].next = (void*)virt_to_phys(&descr[i+1]);
++ descr[i].buf = (void*)virt_to_phys(buffer->buffer);
++ descr[i].after = descr[i].buf + SERIAL_DESCR_BUF_SIZE;
++ descr[i].eol = 0;
++ descr[i].out_eop = 0;
++ descr[i].intr = 1;
++ descr[i].wait = 0;
++ descr[i].in_eop = 0;
++ descr[i].md = 0;
++
++ }
++
++ /* Link the last descriptor to the first. */
++ descr[i-1].next = (void*)virt_to_phys(&descr[0]);
++
++ /* And mark it as end of list. */
++ descr[i-1].eol = 1;
++
++ /* Start with the first descriptor in the list. */
++ up->cur_rec_descr = 0;
++ up->rec_context_descr.next = 0;
++ up->rec_context_descr.saved_data
++ = (dma_descr_data *)virt_to_phys(&descr[up->cur_rec_descr]);
++ up->rec_context_descr.saved_data_buf = descr[up->cur_rec_descr].buf;
++
++ /* Start the DMA. */
++ DMA_START_CONTEXT(up->regi_dmain,
++ virt_to_phys(&up->rec_context_descr));
++
++ /* Input DMA should be running now. */
++ return 1;
++}
++
++
++static void start_receive(struct uart_cris_port *up)
++{
++ reg_scope_instances regi_dmain = up->regi_dmain;
++ if (regi_dmain) {
++ start_recv_dma(up);
++ }
++}
++
++
++static void start_transmitter(struct uart_cris_port *up)
++{
++ int i;
++ reg_scope_instances regi_dmaout = up->regi_dmaout;
++ if (regi_dmaout) {
++ for (i = 0; i < SERIAL_TX_DESCRIPTORS; i++) {
++ memset(&up->tr_descr[i], 0, sizeof(up->tr_descr[i]));
++ up->tr_descr[i].eol = 1;
++ up->tr_descr[i].intr = 1;
++ up->tr_descr[i].next = (dma_descr_data *)
++ virt_to_phys(&up->tr_descr[i+1]);
++ }
++ up->tr_descr[i-1].next = (dma_descr_data *)
++ virt_to_phys(&up->tr_descr[0]);
++ up->first_tx_descr = &up->tr_descr[0];
++
++ /*
++ * We'll be counting up to up->last_tx_descr->next from
++ * up->first_tx_descr when starting DMA, so we should make
++ * them the same for the very first round. If instead we'd
++ * set last_tx_descr = first_tx_descr, we'd rely on
++ * accidentally working code and data as we'd take a pass over
++ * the first, unused, descriptor.
++ */
++ up->last_tx_descr = &up->tr_descr[i-1];
++ up->tx_started = 0;
++ up->tx_pending_chars = 0;
++ }
++}
++
++static int serial_cris_startup(struct uart_port *port)
++{
++ struct uart_cris_port *up = (struct uart_cris_port *)port;
++ unsigned long flags;
++ reg_intr_vect_rw_mask intr_mask;
++ reg_ser_rw_intr_mask ser_intr_mask = {0};
++ reg_dma_rw_intr_mask dmain_intr_mask = {0};
++ reg_dma_rw_intr_mask dmaout_intr_mask = {0};
++ reg_dma_rw_cfg cfg = {.en = 1};
++ reg_scope_instances regi_dma;
++
++ spin_lock_irqsave(&up->port.lock, flags);
++
++ intr_mask = REG_RD(intr_vect, regi_irq, rw_mask);
++
++ dmain_intr_mask.data = dmain_intr_mask.in_eop = regk_dma_yes;
++ dmaout_intr_mask.data = regk_dma_yes;
++ if (!up->regi_dmain)
++ ser_intr_mask.dav = regk_ser_yes;
++
++ if (port->line == 0) {
++ if (request_irq(SER0_INTR_VECT, ser_interrupt,
++ IRQF_SHARED | IRQF_DISABLED, "ser0",
++ &serial_cris_ports[0]))
++ panic("irq ser0");
++ /* Enable the ser0 irq in global config. */
++ intr_mask.ser0 = 1;
++ /* Port ser0 can use dma6 for tx and dma7 for rx. */
++#ifdef CONFIG_ETRAX_SERIAL_PORT0_DMA6_OUT
++ if (request_irq(DMA6_INTR_VECT, dma_tr_interrupt,
++ IRQF_DISABLED, "serial 0 dma tr",
++ &serial_cris_ports[0]))
++ panic("irq ser0txdma");
++ crisv32_request_dma(6, "ser0", DMA_PANIC_ON_ERROR, 0,
++ dma_ser0);
++ /* Enable the dma6 irq in global config. */
++ intr_mask.dma6 = 1;
++#endif
++#ifdef CONFIG_ETRAX_SERIAL_PORT0_DMA7_IN
++ if (request_irq(DMA7_INTR_VECT, dma_rec_interrupt,
++ IRQF_DISABLED, "serial 0 dma rec",
++ &serial_cris_ports[0]))
++ panic("irq ser0rxdma");
++ crisv32_request_dma(7, "ser0", DMA_PANIC_ON_ERROR, 0,
++ dma_ser0);
++ /* Enable the dma7 irq in global config. */
++ intr_mask.dma7 = 1;
++#endif
++ } else if (port->line == 1) {
++ if (request_irq(SER1_INTR_VECT, ser_interrupt,
++ IRQF_SHARED | IRQF_DISABLED, "ser1",
++ &serial_cris_ports[1]))
++ panic("irq ser1");
++ /* Enable the ser1 irq in global config. */
++ intr_mask.ser1 = 1;
++
++ /* Port ser1 can use dma4 for tx and dma5 for rx. */
++#ifdef CONFIG_ETRAX_SERIAL_PORT1_DMA4_OUT
++ if (request_irq(DMA4_INTR_VECT, dma_tr_interrupt,
++ IRQF_DISABLED, "serial 1 dma tr",
++ &serial_cris_ports[1]))
++ panic("irq ser1txdma");
++ crisv32_request_dma(4, "ser1", DMA_PANIC_ON_ERROR, 0,
++ dma_ser1);
++ /* Enable the dma4 irq in global config. */
++ intr_mask.dma4 = 1;
++#endif
++#ifdef CONFIG_ETRAX_SERIAL_PORT1_DMA5_IN
++ if (request_irq(DMA5_INTR_VECT, dma_rec_interrupt,
++ IRQF_DISABLED, "serial 1 dma rec",
++ &serial_cris_ports[1]))
++ panic("irq ser1rxdma");
++ crisv32_request_dma(5, "ser1", DMA_PANIC_ON_ERROR, 0,
++ dma_ser1);
++ /* Enable the dma5 irq in global config. */
++ intr_mask.dma5 = 1;
++#endif
++ } else if (port->line == 2) {
++ if (request_irq(SER2_INTR_VECT, ser_interrupt,
++ IRQF_SHARED | IRQF_DISABLED, "ser2",
++ &serial_cris_ports[2]))
++ panic("irq ser2");
++ /* Enable the ser2 irq in global config. */
++ intr_mask.ser2 = 1;
++
++ /* Port ser2 can use dma2 for tx and dma3 for rx. */
++#ifdef CONFIG_ETRAX_SERIAL_PORT2_DMA2_OUT
++ if (request_irq(DMA2_INTR_VECT, dma_tr_interrupt,
++ IRQF_DISABLED, "serial 2 dma tr",
++ &serial_cris_ports[2]))
++ panic("irq ser2txdma");
++ crisv32_request_dma(2, "ser2", DMA_PANIC_ON_ERROR, 0,
++ dma_ser2);
++ /* Enable the dma2 irq in global config. */
++ intr_mask.dma2 = 1;
++#endif
++#ifdef CONFIG_ETRAX_SERIAL_PORT2_DMA3_IN
++ if (request_irq(DMA3_INTR_VECT, dma_rec_interrupt,
++ IRQF_DISABLED, "serial 2 dma rec",
++ &serial_cris_ports[2]))
++ panic("irq ser2rxdma");
++ crisv32_request_dma(3, "ser2", DMA_PANIC_ON_ERROR, 0,
++ dma_ser2);
++ /* Enable the dma3 irq in global config. */
++ intr_mask.dma3 = 1;
++#endif
++ } else if (port->line == 3) {
++ if (request_irq(SER3_INTR_VECT, ser_interrupt,
++ IRQF_SHARED | IRQF_DISABLED, "ser3",
++ &serial_cris_ports[3]))
++ panic("irq ser3" );
++ /* Enable the ser3 irq in global config. */
++ intr_mask.ser3 = 1;
++
++ /* Port ser3 can use dma8 for tx and dma9 for rx. */
++#ifdef CONFIG_ETRAX_SERIAL_PORT3_DMA8_OUT
++ if (request_irq(DMA8_INTR_VECT, dma_tr_interrupt,
++ IRQF_DISABLED, "serial 3 dma tr",
++ &serial_cris_ports[3]))
++ panic("irq ser3txdma");
++ crisv32_request_dma(8, "ser3", DMA_PANIC_ON_ERROR, 0,
++ dma_ser3);
++ /* Enable the dma2 irq in global config. */
++ intr_mask.dma8 = 1;
++#endif
++#ifdef CONFIG_ETRAX_SERIAL_PORT3_DMA9_IN
++ if (request_irq(DMA9_INTR_VECT, dma_rec_interrupt,
++ IRQF_DISABLED, "serial 3 dma rec",
++ &serial_cris_ports[3]))
++ panic("irq ser3rxdma");
++ crisv32_request_dma(9, "ser3", DMA_PANIC_ON_ERROR, 0,
++ dma_ser3);
++ /* Enable the dma3 irq in global config. */
++ intr_mask.dma9 = 1;
++#endif
++ }
++
++ /*
++ * Reset the DMA channels and make sure their interrupts are cleared.
++ */
++
++ regi_dma = up->regi_dmain;
++ if (regi_dma) {
++ reg_dma_rw_ack_intr ack_intr = { 0 };
++ DMA_RESET(regi_dma);
++ /* Wait until reset cycle is complete. */
++ DMA_WAIT_UNTIL_RESET(regi_dma);
++ REG_WR(dma, regi_dma, rw_cfg, cfg);
++ /* Make sure the irqs are cleared. */
++ ack_intr.group = 1;
++ ack_intr.ctxt = 1;
++ ack_intr.data = 1;
++ ack_intr.in_eop = 1;
++ ack_intr.stream_cmd = 1;
++ REG_WR(dma, regi_dma, rw_ack_intr, ack_intr);
++ }
++ regi_dma = up->regi_dmaout;
++ if (regi_dma) {
++ reg_dma_rw_ack_intr ack_intr = { 0 };
++ DMA_RESET(regi_dma);
++ /* Wait until reset cycle is complete. */
++ DMA_WAIT_UNTIL_RESET(regi_dma);
++ REG_WR(dma, regi_dma, rw_cfg, cfg);
++ /* Make sure the irqs are cleared. */
++ ack_intr.group = 1;
++ ack_intr.ctxt = 1;
++ ack_intr.data = 1;
++ ack_intr.in_eop = 1;
++ ack_intr.stream_cmd = 1;
++ REG_WR(dma, regi_dma, rw_ack_intr, ack_intr);
++ }
++
++ REG_WR(intr_vect, regi_irq, rw_mask, intr_mask);
++ REG_WR(ser, up->regi_ser, rw_intr_mask, ser_intr_mask);
++ if (up->regi_dmain)
++ REG_WR(dma, up->regi_dmain, rw_intr_mask, dmain_intr_mask);
++ if (up->regi_dmaout)
++ REG_WR(dma, up->regi_dmaout, rw_intr_mask, dmaout_intr_mask);
++
++ start_receive(up);
++ start_transmitter(up);
++
++ serial_cris_set_mctrl(&up->port, up->port.mctrl);
++ spin_unlock_irqrestore(&up->port.lock, flags);
++
++ return 0;
++}
++
++static void serial_cris_shutdown(struct uart_port *port)
++{
++ struct uart_cris_port *up = (struct uart_cris_port *)port;
++ unsigned long flags;
++ reg_intr_vect_rw_mask intr_mask;
++
++ spin_lock_irqsave(&up->port.lock, flags);
++
++ intr_mask = REG_RD(intr_vect, regi_irq, rw_mask);
++ serial_cris_stop_tx(port);
++ serial_cris_stop_rx(port);
++
++ if (port->line == 0) {
++ intr_mask.ser0 = 0;
++ free_irq(SER0_INTR_VECT, &serial_cris_ports[0]);
++#ifdef CONFIG_ETRAX_SERIAL_PORT0_DMA6_OUT
++ intr_mask.dma6 = 0;
++ crisv32_free_dma(6);
++ free_irq(DMA6_INTR_VECT, &serial_cris_ports[0]);
++#endif
++#ifdef CONFIG_ETRAX_SERIAL_PORT0_DMA7_IN
++ intr_mask.dma7 = 0;
++ crisv32_free_dma(7);
++ free_irq(DMA7_INTR_VECT, &serial_cris_ports[0]);
++#endif
++ } else if (port->line == 1) {
++ intr_mask.ser1 = 0;
++ free_irq(SER1_INTR_VECT, &serial_cris_ports[1]);
++#ifdef CONFIG_ETRAX_SERIAL_PORT1_DMA4_OUT
++ intr_mask.dma4 = 0;
++ crisv32_free_dma(4);
++ free_irq(DMA4_INTR_VECT, &serial_cris_ports[1]);
++#endif
++#ifdef CONFIG_ETRAX_SERIAL_PORT1_DMA5_IN
++ intr_mask.dma5 = 0;
++ crisv32_free_dma(5);
++ free_irq(DMA5_INTR_VECT, &serial_cris_ports[1]);
++#endif
++ } else if (port->line == 2) {
++ intr_mask.ser2 = 0;
++ free_irq(SER2_INTR_VECT, &serial_cris_ports[2]);
++#ifdef CONFIG_ETRAX_SERIAL_PORT2_DMA2_OUT
++ intr_mask.dma2 = 0;
++ crisv32_free_dma(2);
++ free_irq(DMA2_INTR_VECT, &serial_cris_ports[2]);
++#endif
++#ifdef CONFIG_ETRAX_SERIAL_PORT2_DMA3_IN
++ intr_mask.dma3 = 0;
++ crisv32_free_dma(3);
++ free_irq(DMA3_INTR_VECT, &serial_cris_ports[2]);
++#endif
++ } else if (port->line == 3) {
++ intr_mask.ser3 = 0;
++ free_irq(SER3_INTR_VECT, &serial_cris_ports[3]);
++#ifdef CONFIG_ETRAX_SERIAL_PORT3_DMA8_OUT
++ intr_mask.dma8 = 0;
++ crisv32_free_dma(8);
++ free_irq(DMA8_INTR_VECT, &serial_cris_ports[3]);
++#endif
++#ifdef CONFIG_ETRAX_SERIAL_PORT3_DMA9_IN
++ intr_mask.dma9 = 0;
++ crisv32_free_dma(9);
++ free_irq(DMA9_INTR_VECT, &serial_cris_ports[3]);
++#endif
++ }
++
++ REG_WR(intr_vect, regi_irq, rw_mask, intr_mask);
++
++ serial_cris_set_mctrl(&up->port, up->port.mctrl);
++
++ if (up->regi_dmain) {
++ struct etrax_recv_buffer *rb;
++ struct etrax_recv_buffer *rb_next;
++ int i;
++ struct dma_descr_data *descr;
++
++ /*
++ * In case of DMA and receive errors, there might be pending
++ * receive buffers still linked here and not flushed upwards.
++ * Release them.
++ */
++ for (rb = up->first_recv_buffer; rb != NULL; rb = rb_next) {
++ rb_next = rb->next;
++ kfree (rb);
++ }
++ up->first_recv_buffer = NULL;
++ up->last_recv_buffer = NULL;
++
++ /*
++ * Also release buffers that were attached to the DMA
++ * before we shut down the hardware above.
++ */
++ for (i = 0, descr = up->rec_descr;
++ i < SERIAL_RECV_DESCRIPTORS;
++ i++)
++ if (descr[i].buf) {
++ rb = phys_to_virt((u32) descr[i].buf)
++ - sizeof *rb;
++ kfree(rb);
++ descr[i].buf = NULL;
++ }
++ }
++
++ spin_unlock_irqrestore(&up->port.lock, flags);
++
++}
++
++static void
++serial_cris_set_termios(struct uart_port *port, struct termios *termios,
++ struct termios *old)
++{
++ struct uart_cris_port *up = (struct uart_cris_port *)port;
++ unsigned long flags;
++ reg_ser_rw_xoff xoff;
++ reg_ser_rw_xoff_clr xoff_clr = {0};
++ reg_ser_rw_tr_ctrl tx_ctrl = {0};
++ reg_ser_rw_tr_dma_en tx_dma_en = {0};
++ reg_ser_rw_rec_ctrl rx_ctrl = {0};
++ reg_ser_rw_tr_baud_div tx_baud_div = {0};
++ reg_ser_rw_rec_baud_div rx_baud_div = {0};
++ reg_ser_r_stat_din rstat;
++ int baud;
++
++ if (old &&
++ termios->c_cflag == old->c_cflag &&
++ termios->c_iflag == old->c_iflag)
++ return;
++
++ /* Start with default settings and then fill in changes. */
++
++ /* Tx: 8 bit, no/even parity, 1 stop bit, no cts. */
++ tx_ctrl.base_freq = regk_ser_f29_493;
++ tx_ctrl.en = 0;
++ tx_ctrl.stop = 0;
++#ifdef CONFIG_ETRAX_RS485
++ if (up->rs485.enabled && (up->port_type != TYPE_485FD)) {
++ tx_ctrl.auto_rts = regk_ser_yes;
++ } else
++#endif
++ tx_ctrl.auto_rts = regk_ser_no;
++ tx_ctrl.txd = 1;
++ tx_ctrl.auto_cts = 0;
++ /* Rx: 8 bit, no/even parity. */
++ if (up->regi_dmain) {
++ rx_ctrl.dma_mode = 1;
++ rx_ctrl.auto_eop = 1;
++ }
++ rx_ctrl.dma_err = regk_ser_stop;
++ rx_ctrl.sampling = regk_ser_majority;
++ rx_ctrl.timeout = 1;
++
++#ifdef CONFIG_ETRAX_RS485
++ if (up->rs485.enabled && (up->port_type != TYPE_485FD)) {
++# ifdef CONFIG_ETRAX_RS485_DISABLE_RECEIVER
++ rx_ctrl.half_duplex = regk_ser_yes;
++# endif
++ rx_ctrl.rts_n = up->rs485.rts_after_sent ?
++ regk_ser_active : regk_ser_inactive;
++ } else if (up->port_type == TYPE_485FD) {
++ rx_ctrl.rts_n = regk_ser_active;
++ } else
++#endif
++ rx_ctrl.rts_n = regk_ser_inactive;
++
++ /* Common for tx and rx: 8N1. */
++ tx_ctrl.data_bits = regk_ser_bits8;
++ rx_ctrl.data_bits = regk_ser_bits8;
++ tx_ctrl.par = regk_ser_even;
++ rx_ctrl.par = regk_ser_even;
++ tx_ctrl.par_en = regk_ser_no;
++ rx_ctrl.par_en = regk_ser_no;
++
++ tx_ctrl.stop_bits = regk_ser_bits1;
++
++
++ /* Change baud-rate and write it to the hardware. */
++
++ /* baud_clock = base_freq / (divisor*8)
++ * divisor = base_freq / (baud_clock * 8)
++ * base_freq is either:
++ * off, ext, 29.493MHz, 32.000 MHz, 32.768 MHz or 100 MHz
++ * 20.493MHz is used for standard baudrates
++ */
++
++ /*
++ * For the console port we keep the original baudrate here. Not very
++ * beautiful.
++ */
++ if ((port != console_port) || old)
++ baud = uart_get_baud_rate(port, termios, old, 0,
++ port->uartclk / 8);
++ else
++ baud = console_baud;
++
++ tx_baud_div.div = 29493000 / (8 * baud);
++ /* Rx uses same as tx. */
++ rx_baud_div.div = tx_baud_div.div;
++ rx_ctrl.base_freq = tx_ctrl.base_freq;
++
++ if ((termios->c_cflag & CSIZE) == CS7) {
++ /* Set 7 bit mode. */
++ tx_ctrl.data_bits = regk_ser_bits7;
++ rx_ctrl.data_bits = regk_ser_bits7;
++ }
++
++ if (termios->c_cflag & CSTOPB) {
++ /* Set 2 stop bit mode. */
++ tx_ctrl.stop_bits = regk_ser_bits2;
++ }
++
++ if (termios->c_cflag & PARENB) {
++ /* Enable parity. */
++ tx_ctrl.par_en = regk_ser_yes;
++ rx_ctrl.par_en = regk_ser_yes;
++ }
++
++ if (termios->c_cflag & CMSPAR) {
++ if (termios->c_cflag & PARODD) {
++ /* Set mark parity if PARODD and CMSPAR. */
++ tx_ctrl.par = regk_ser_mark;
++ rx_ctrl.par = regk_ser_mark;
++ } else {
++ tx_ctrl.par = regk_ser_space;
++ rx_ctrl.par = regk_ser_space;
++ }
++ } else {
++ if (termios->c_cflag & PARODD) {
++ /* Set odd parity. */
++ tx_ctrl.par = regk_ser_odd;
++ rx_ctrl.par = regk_ser_odd;
++ }
++ }
++
++ if (termios->c_cflag & CRTSCTS) {
++ /* Enable automatic CTS handling. */
++ tx_ctrl.auto_cts = regk_ser_yes;
++ }
++
++ /* Make sure the tx and rx are enabled. */
++ tx_ctrl.en = regk_ser_yes;
++ rx_ctrl.en = regk_ser_yes;
++
++ /*
++ * Wait for tr_idle in case a character is being output, so it won't
++ * be damaged by the changes we do below. It seems the termios
++ * changes "sometimes" (we can't see e.g. a tcsetattr TCSANOW
++ * parameter here) should take place no matter what state. However,
++ * in case we should wait, we may have a non-empty transmitter state
++ * as we tell the upper layers that we're all done when we've passed
++ * characters to the hardware, but we don't wait for them being
++ * actually shifted out.
++ */
++ spin_lock_irqsave(&port->lock, flags);
++
++ /*
++ * None of our interrupts re-enable DMA, so it's thankfully ok to
++ * disable it once, outside the loop.
++ */
++ tx_dma_en.en = 0;
++ REG_WR(ser, up->regi_ser, rw_tr_dma_en, tx_dma_en);
++ do {
++ /*
++ * Make sure we have integrity between the read r_stat status
++ * and us writing the registers below, but don't busy-wait
++ * with interrupts off. We need to keep the port lock though
++ * (if we go SMP), so nobody else writes characters.
++ */
++ local_irq_restore(flags);
++ local_irq_save(flags);
++ rstat = REG_RD(ser, up->regi_ser, r_stat_din);
++ } while (!rstat.tr_idle);
++
++ /* Actually write the control regs (if modified) to the hardware. */
++
++ uart_update_timeout(port, termios->c_cflag, port->uartclk/8);
++ MODIFY_REG(up->regi_ser, rw_rec_baud_div, rx_baud_div);
++ MODIFY_REG(up->regi_ser, rw_rec_ctrl, rx_ctrl);
++
++ MODIFY_REG(up->regi_ser, rw_tr_baud_div, tx_baud_div);
++ MODIFY_REG(up->regi_ser, rw_tr_ctrl, tx_ctrl);
++
++ tx_dma_en.en = up->regi_dmaout != 0;
++ REG_WR(ser, up->regi_ser, rw_tr_dma_en, tx_dma_en);
++
++ xoff = REG_RD(ser, up->regi_ser, rw_xoff);
++
++ if (up->port.info && (up->port.info->tty->termios->c_iflag & IXON)) {
++ xoff.chr = STOP_CHAR(up->port.info->tty);
++ xoff.automatic = regk_ser_yes;
++ } else
++ xoff.automatic = regk_ser_no;
++
++ MODIFY_REG(up->regi_ser, rw_xoff, xoff);
++
++ /*
++ * Make sure we don't start in an automatically shut-off state due to
++ * a previous early exit.
++ */
++ xoff_clr.clr = 1;
++ REG_WR(ser, up->regi_ser, rw_xoff_clr, xoff_clr);
++
++ serial_cris_set_mctrl(&up->port, up->port.mctrl);
++ spin_unlock_irqrestore(&up->port.lock, flags);
++}
++
++static const char *
++serial_cris_type(struct uart_port *port)
++{
++ return "CRISv32";
++}
++
++static void serial_cris_release_port(struct uart_port *port)
++{
++}
++
++static int serial_cris_request_port(struct uart_port *port)
++{
++ return 0;
++}
++
++static void serial_cris_config_port(struct uart_port *port, int flags)
++{
++ struct uart_cris_port *up = (struct uart_cris_port *)port;
++ up->port.type = PORT_CRIS;
++}
++
++#if defined(CONFIG_ETRAX_RS485)
++
++static void cris_set_rs485_mode(struct uart_cris_port* up) {
++ reg_ser_rw_tr_ctrl tr_ctrl;
++ reg_ser_rw_rec_ctrl rec_ctrl;
++ reg_scope_instances regi_ser = up->regi_ser;
++
++ if (up->port_type == TYPE_485FD)
++ /* We do not want to change anything if we are in 485FD mode */
++ return;
++
++ tr_ctrl = REG_RD(ser, regi_ser, rw_tr_ctrl);
++ rec_ctrl = REG_RD(ser, regi_ser, rw_rec_ctrl);
++
++ /* Set port in RS-485 mode */
++ if (up->rs485.enabled) {
++ tr_ctrl.auto_rts = regk_ser_yes;
++ rec_ctrl.rts_n = up->rs485.rts_after_sent ?
++ regk_ser_active : regk_ser_inactive;
++#ifdef CONFIG_ETRAX_RS485_DISABLE_RECEIVER
++ rec_ctrl.half_duplex = regk_ser_yes;
++#endif
++ }
++ /* Set port to RS-232 mode */
++ else {
++ rec_ctrl.rts_n = regk_ser_inactive;
++ tr_ctrl.auto_rts = regk_ser_no;
++ rec_ctrl.half_duplex = regk_ser_no;
++ }
++
++ REG_WR(ser, regi_ser, rw_tr_ctrl, tr_ctrl);
++ REG_WR(ser, regi_ser, rw_rec_ctrl, rec_ctrl);
++}
++
++/* Enable/disable RS-485 mode on selected port. */
++static int
++cris_enable_rs485(struct uart_cris_port* up, struct rs485_control *r)
++{
++ if (up->port_type == TYPE_485FD)
++ /* Port in 485FD mode can not chage mode */
++ goto out;
++
++ up->rs485.enabled = 0x1 & r->enabled;
++ up->rs485.rts_on_send = 0x01 & r->rts_on_send;
++ up->rs485.rts_after_sent = 0x01 & r->rts_after_sent;
++ up->rs485.delay_rts_before_send = r->delay_rts_before_send;
++
++ cris_set_rs485_mode(up);
++ out:
++ return 0;
++}
++
++
++/* Enable RS485 mode on port and send the data. Port will stay
++ * in 485 mode after the data has been sent.
++ */
++static int
++cris_write_rs485(struct uart_cris_port* up, const unsigned char *buf,
++ int count)
++{
++ up->rs485.enabled = 1;
++
++ /* Set the port in RS485 mode */
++ cris_set_rs485_mode(up);
++
++ /* Send the data */
++ count = serial_cris_driver.tty_driver->write(up->port.info->tty, buf, count);
++
++ return count;
++}
++
++#endif /* CONFIG_ETRAX_RS485 */
++
++static int serial_cris_ioctl(struct uart_port *port, unsigned int cmd,
++ unsigned long arg)
++{
++ struct uart_cris_port *up = (struct uart_cris_port *)port;
++
++ switch (cmd) {
++#if defined(CONFIG_ETRAX_RS485)
++ case TIOCSERSETRS485: {
++ struct rs485_control rs485ctrl;
++ if (copy_from_user(&rs485ctrl, (struct rs485_control*) arg,
++ sizeof(rs485ctrl)))
++ return -EFAULT;
++
++ return cris_enable_rs485(up, &rs485ctrl);
++ }
++
++ case TIOCSERWRRS485: {
++ struct rs485_write rs485wr;
++ if (copy_from_user(&rs485wr, (struct rs485_write*)arg,
++ sizeof(rs485wr)))
++ return -EFAULT;
++
++ return cris_write_rs485(up, rs485wr.outc, rs485wr.outc_size);
++ }
++#endif
++ default:
++ return -ENOIOCTLCMD;
++ }
++
++ return 0;
++}
++
++static const struct uart_ops serial_cris_pops = {
++ .tx_empty = serial_cris_tx_empty,
++ .set_mctrl = serial_cris_set_mctrl,
++ .get_mctrl = serial_cris_get_mctrl,
++ .stop_tx = serial_cris_stop_tx,
++ .start_tx = serial_cris_start_tx,
++ .send_xchar = serial_cris_send_xchar,
++ .stop_rx = serial_cris_stop_rx,
++ .enable_ms = serial_cris_enable_ms,
++ .break_ctl = serial_cris_break_ctl,
++ .startup = serial_cris_startup,
++ .shutdown = serial_cris_shutdown,
++ .set_termios = serial_cris_set_termios,
++ .type = serial_cris_type,
++ .release_port = serial_cris_release_port,
++ .request_port = serial_cris_request_port,
++ .config_port = serial_cris_config_port,
++ .ioctl = serial_cris_ioctl,
++};
++
++/*
++ * It's too easy to break CONFIG_ETRAX_DEBUG_PORT_NULL and the
++ * no-config choices by adding and moving code to before a necessary
++ * early exit in all functions for the special case of
++ * up->regi_ser == 0. This collection of dummy functions lets us
++ * avoid that. Maybe there should be a generic table of dummy serial
++ * functions?
++ */
++
++static unsigned int serial_cris_tx_empty_dummy(struct uart_port *port)
++{
++ return TIOCSER_TEMT;
++}
++
++static void serial_cris_set_mctrl_dummy(struct uart_port *port,
++ unsigned int mctrl)
++{
++}
++
++static unsigned int serial_cris_get_mctrl_dummy(struct uart_port *port)
++{
++ return 0;
++}
++
++static void serial_cris_stop_tx_dummy(struct uart_port *port)
++{
++}
++
++static void serial_cris_start_tx_dummy(struct uart_port *port)
++{
++ /* Discard outbound characters. */
++ struct uart_cris_port *up = (struct uart_cris_port *)port;
++ struct circ_buf *xmit = &up->port.info->xmit;
++ xmit->tail = xmit->head;
++ uart_write_wakeup(port);
++}
++
++#define serial_cris_stop_rx_dummy serial_cris_stop_tx_dummy
++
++#define serial_cris_enable_ms_dummy serial_cris_stop_tx_dummy
++
++static void serial_cris_break_ctl_dummy(struct uart_port *port,
++ int break_state)
++{
++}
++
++static int serial_cris_startup_dummy(struct uart_port *port)
++{
++ return 0;
++}
++
++#define serial_cris_shutdown_dummy serial_cris_stop_tx_dummy
++
++static void
++serial_cris_set_termios_dummy(struct uart_port *port, struct termios *termios,
++ struct termios *old)
++{
++}
++
++#define serial_cris_release_port_dummy serial_cris_stop_tx_dummy
++#define serial_cris_request_port_dummy serial_cris_startup_dummy
++
++static const struct uart_ops serial_cris_dummy_pops = {
++ /*
++ * We *could* save one or two of those with different
++ * signature by casting and knowledge of the ABI, but it's
++ * just not worth the maintenance headache.
++ * For the ones we don't define here, the default (usually meaning
++ * "unimplemented") makes sense.
++ */
++ .tx_empty = serial_cris_tx_empty_dummy,
++ .set_mctrl = serial_cris_set_mctrl_dummy,
++ .get_mctrl = serial_cris_get_mctrl_dummy,
++ .stop_tx = serial_cris_stop_tx_dummy,
++ .start_tx = serial_cris_start_tx_dummy,
++ .stop_rx = serial_cris_stop_rx_dummy,
++ .enable_ms = serial_cris_enable_ms_dummy,
++ .break_ctl = serial_cris_break_ctl_dummy,
++ .startup = serial_cris_startup_dummy,
++ .shutdown = serial_cris_shutdown_dummy,
++ .set_termios = serial_cris_set_termios_dummy,
++
++ /* This one we keep the same. */
++ .type = serial_cris_type,
++
++ .release_port = serial_cris_release_port_dummy,
++ .request_port = serial_cris_request_port_dummy,
++
++ /*
++ * This one we keep the same too, as long as it doesn't do
++ * anything else but to set the type.
++ */
++ .config_port = serial_cris_config_port,
++};
++
++static void cris_serial_port_init(struct uart_port *port, int line)
++{
++ struct uart_cris_port *up = (struct uart_cris_port *)port;
++ static int first = 1;
++
++ if (up->initialized)
++ return;
++ up->initialized = 1;
++ port->line = line;
++ spin_lock_init(&port->lock);
++ port->ops =
++ up->regi_ser == 0 ? &serial_cris_dummy_pops :
++ &serial_cris_pops;
++ port->irq = up->irq;
++ port->iobase = up->regi_ser ? up->regi_ser : 1;
++ port->uartclk = 29493000;
++
++ /*
++ * We can't fit any more than 255 here (unsigned char), though
++ * actually UART_XMIT_SIZE characters could be pending output (if it
++ * wasn't for the single test in transmit_chars_dma). At time of this
++ * writing, the definition of "fifosize" is here the amount of
++ * characters that can be pending output after a start_tx call until
++ * tx_empty returns 1: see serial_core.c:uart_wait_until_sent. This
++ * matters for timeout calculations unfortunately, but keeping larger
++ * amounts at the DMA wouldn't win much so let's just play nice.
++ */
++ port->fifosize = 255;
++ port->flags = UPF_BOOT_AUTOCONF;
++
++#ifdef CONFIG_ETRAX_RS485
++ /* Set sane defaults. */
++ up->rs485.rts_on_send = 0;
++ up->rs485.rts_after_sent = 1;
++ up->rs485.delay_rts_before_send = 0;
++ if (up->port_type > TYPE_232)
++ up->rs485.enabled = 1;
++ else
++ up->rs485.enabled = 0;
++#endif
++
++ if (first) {
++ first = 0;
++#ifdef CONFIG_ETRAX_SERIAL_PORT0
++ SETUP_PINS(0);
++#endif
++#ifdef CONFIG_ETRAX_SERIAL_PORT1
++ SETUP_PINS(1);
++#endif
++#ifdef CONFIG_ETRAX_SERIAL_PORT2
++ SETUP_PINS(2);
++#endif
++#ifdef CONFIG_ETRAX_SERIAL_PORT3
++ SETUP_PINS(3);
++#endif
++ }
++}
++
++static int __init serial_cris_init(void)
++{
++ int ret, i;
++ reg_ser_rw_rec_ctrl rec_ctrl;
++ printk(KERN_INFO "Serial: CRISv32 driver $Revision: 1.78 $ ");
++
++ ret = uart_register_driver(&serial_cris_driver);
++ if (ret)
++ goto out;
++
++ for (i = 0; i < UART_NR; i++) {
++ if (serial_cris_ports[i].used) {
++#ifdef CONFIG_ETRAX_RS485
++ /* Make sure that the RTS pin stays low when allocating
++ * pins for a port in 485 mode.
++ */
++ if (serial_cris_ports[i].port_type > TYPE_232) {
++ rec_ctrl = REG_RD(ser, serial_cris_ports[i].regi_ser, rw_rec_ctrl);
++ rec_ctrl.rts_n = regk_ser_active;
++ REG_WR(ser, serial_cris_ports[i].regi_ser, rw_rec_ctrl, rec_ctrl);
++ }
++#endif
++ switch (serial_cris_ports[i].regi_ser) {
++ case regi_ser1:
++ if (crisv32_pinmux_alloc_fixed(pinmux_ser1)) {
++ printk("Failed to allocate pins for ser1, disable port\n");
++ serial_cris_ports[i].used = 0;
++ continue;
++ }
++ break;
++ case regi_ser2:
++ if (crisv32_pinmux_alloc_fixed(pinmux_ser2)) {
++ printk("Failed to allocate pins for ser2, disable port\n");
++ serial_cris_ports[i].used = 0;
++ continue;
++ }
++ break;
++ case regi_ser3:
++ if (crisv32_pinmux_alloc_fixed(pinmux_ser3)) {
++ printk("Failed to allocate pins for ser3, disable port\n");
++ serial_cris_ports[i].used = 0;
++ continue;
++ }
++ break;
++ }
++
++ struct uart_port *port = &serial_cris_ports[i].port;
++ cris_console.index = i;
++ cris_serial_port_init(port, i);
++ uart_add_one_port(&serial_cris_driver, port);
++ }
++ }
++
++out:
++ return ret;
++}
++
++static void __exit serial_cris_exit(void)
++{
++ int i;
++ for (i = 0; i < UART_NR; i++)
++ if (serial_cris_ports[i].used) {
++ switch (serial_cris_ports[i].regi_ser) {
++ case regi_ser1:
++ crisv32_pinmux_dealloc_fixed(pinmux_ser1);
++ break;
++ case regi_ser2:
++ crisv32_pinmux_dealloc_fixed(pinmux_ser2);
++ break;
++ case regi_ser3:
++ crisv32_pinmux_dealloc_fixed(pinmux_ser3);
++ break;
++ }
++ uart_remove_one_port(&serial_cris_driver,
++ &serial_cris_ports[i].port);
++ }
++ uart_unregister_driver(&serial_cris_driver);
++}
++
++module_init(serial_cris_init);
++module_exit(serial_cris_exit);
+--- linux-2.6.19.2.orig/drivers/usb/host/hc_crisv10.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/drivers/usb/host/hc-crisv10.c 2007-02-26 20:58:29.000000000 +0100
+@@ -1,219 +1,51 @@
+ /*
+- * usb-host.c: ETRAX 100LX USB Host Controller Driver (HCD)
+ *
+- * Copyright (c) 2002, 2003 Axis Communications AB.
++ * ETRAX 100LX USB Host Controller Driver
++ *
++ * Copyright (C) 2005, 2006 Axis Communications AB
++ *
++ * Author: Konrad Eriksson <konrad.eriksson@axis.se>
++ *
+ */
+
++#include <linux/module.h>
+ #include <linux/kernel.h>
+-#include <linux/delay.h>
+-#include <linux/ioport.h>
+-#include <linux/sched.h>
+-#include <linux/slab.h>
+-#include <linux/errno.h>
+-#include <linux/unistd.h>
+-#include <linux/interrupt.h>
+ #include <linux/init.h>
+-#include <linux/list.h>
++#include <linux/moduleparam.h>
+ #include <linux/spinlock.h>
++#include <linux/usb.h>
++#include <linux/platform_device.h>
+
+-#include <asm/uaccess.h>
+ #include <asm/io.h>
+ #include <asm/irq.h>
+-#include <asm/dma.h>
+-#include <asm/system.h>
+-#include <asm/arch/svinto.h>
++#include <asm/arch/dma.h>
++#include <asm/arch/io_interface_mux.h>
+
+-#include <linux/usb.h>
+-/* Ugly include because we don't live with the other host drivers. */
+-#include <../drivers/usb/core/hcd.h>
+-#include <../drivers/usb/core/usb.h>
+-
+-#include "hc_crisv10.h"
++#include "../core/hcd.h"
++#include "../core/hub.h"
++#include "hc-crisv10.h"
++#include "hc-cris-dbg.h"
++
++
++/***************************************************************************/
++/***************************************************************************/
++/* Host Controller settings */
++/***************************************************************************/
++/***************************************************************************/
++
++#define VERSION "1.00"
++#define COPYRIGHT "(c) 2005, 2006 Axis Communications AB"
++#define DESCRIPTION "ETRAX 100LX USB Host Controller"
+
+ #define ETRAX_USB_HC_IRQ USB_HC_IRQ_NBR
+ #define ETRAX_USB_RX_IRQ USB_DMA_RX_IRQ_NBR
+ #define ETRAX_USB_TX_IRQ USB_DMA_TX_IRQ_NBR
+
+-static const char *usb_hcd_version = "$Revision: 1.2 $";
+-
+-#undef KERN_DEBUG
+-#define KERN_DEBUG ""
+-
+-
+-#undef USB_DEBUG_RH
+-#undef USB_DEBUG_EPID
+-#undef USB_DEBUG_SB
+-#undef USB_DEBUG_DESC
+-#undef USB_DEBUG_URB
+-#undef USB_DEBUG_TRACE
+-#undef USB_DEBUG_BULK
+-#undef USB_DEBUG_CTRL
+-#undef USB_DEBUG_INTR
+-#undef USB_DEBUG_ISOC
+-
+-#ifdef USB_DEBUG_RH
+-#define dbg_rh(format, arg...) printk(KERN_DEBUG __FILE__ ": (RH) " format "\n" , ## arg)
+-#else
+-#define dbg_rh(format, arg...) do {} while (0)
+-#endif
+-
+-#ifdef USB_DEBUG_EPID
+-#define dbg_epid(format, arg...) printk(KERN_DEBUG __FILE__ ": (EPID) " format "\n" , ## arg)
+-#else
+-#define dbg_epid(format, arg...) do {} while (0)
+-#endif
+-
+-#ifdef USB_DEBUG_SB
+-#define dbg_sb(format, arg...) printk(KERN_DEBUG __FILE__ ": (SB) " format "\n" , ## arg)
+-#else
+-#define dbg_sb(format, arg...) do {} while (0)
+-#endif
+-
+-#ifdef USB_DEBUG_CTRL
+-#define dbg_ctrl(format, arg...) printk(KERN_DEBUG __FILE__ ": (CTRL) " format "\n" , ## arg)
+-#else
+-#define dbg_ctrl(format, arg...) do {} while (0)
+-#endif
+-
+-#ifdef USB_DEBUG_BULK
+-#define dbg_bulk(format, arg...) printk(KERN_DEBUG __FILE__ ": (BULK) " format "\n" , ## arg)
+-#else
+-#define dbg_bulk(format, arg...) do {} while (0)
+-#endif
+-
+-#ifdef USB_DEBUG_INTR
+-#define dbg_intr(format, arg...) printk(KERN_DEBUG __FILE__ ": (INTR) " format "\n" , ## arg)
+-#else
+-#define dbg_intr(format, arg...) do {} while (0)
+-#endif
+-
+-#ifdef USB_DEBUG_ISOC
+-#define dbg_isoc(format, arg...) printk(KERN_DEBUG __FILE__ ": (ISOC) " format "\n" , ## arg)
+-#else
+-#define dbg_isoc(format, arg...) do {} while (0)
+-#endif
+-
+-#ifdef USB_DEBUG_TRACE
+-#define DBFENTER (printk(": Entering: %s\n", __FUNCTION__))
+-#define DBFEXIT (printk(": Exiting: %s\n", __FUNCTION__))
+-#else
+-#define DBFENTER do {} while (0)
+-#define DBFEXIT do {} while (0)
+-#endif
+-
+-#define usb_pipeslow(pipe) (((pipe) >> 26) & 1)
+-
+-/*-------------------------------------------------------------------
+- Virtual Root Hub
+- -------------------------------------------------------------------*/
+-
+-static __u8 root_hub_dev_des[] =
+-{
+- 0x12, /* __u8 bLength; */
+- 0x01, /* __u8 bDescriptorType; Device */
+- 0x00, /* __le16 bcdUSB; v1.0 */
+- 0x01,
+- 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
+- 0x00, /* __u8 bDeviceSubClass; */
+- 0x00, /* __u8 bDeviceProtocol; */
+- 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */
+- 0x00, /* __le16 idVendor; */
+- 0x00,
+- 0x00, /* __le16 idProduct; */
+- 0x00,
+- 0x00, /* __le16 bcdDevice; */
+- 0x00,
+- 0x00, /* __u8 iManufacturer; */
+- 0x02, /* __u8 iProduct; */
+- 0x01, /* __u8 iSerialNumber; */
+- 0x01 /* __u8 bNumConfigurations; */
+-};
+-
+-/* Configuration descriptor */
+-static __u8 root_hub_config_des[] =
+-{
+- 0x09, /* __u8 bLength; */
+- 0x02, /* __u8 bDescriptorType; Configuration */
+- 0x19, /* __le16 wTotalLength; */
+- 0x00,
+- 0x01, /* __u8 bNumInterfaces; */
+- 0x01, /* __u8 bConfigurationValue; */
+- 0x00, /* __u8 iConfiguration; */
+- 0x40, /* __u8 bmAttributes; Bit 7: Bus-powered */
+- 0x00, /* __u8 MaxPower; */
+-
+- /* interface */
+- 0x09, /* __u8 if_bLength; */
+- 0x04, /* __u8 if_bDescriptorType; Interface */
+- 0x00, /* __u8 if_bInterfaceNumber; */
+- 0x00, /* __u8 if_bAlternateSetting; */
+- 0x01, /* __u8 if_bNumEndpoints; */
+- 0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */
+- 0x00, /* __u8 if_bInterfaceSubClass; */
+- 0x00, /* __u8 if_bInterfaceProtocol; */
+- 0x00, /* __u8 if_iInterface; */
+-
+- /* endpoint */
+- 0x07, /* __u8 ep_bLength; */
+- 0x05, /* __u8 ep_bDescriptorType; Endpoint */
+- 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */
+- 0x03, /* __u8 ep_bmAttributes; Interrupt */
+- 0x08, /* __le16 ep_wMaxPacketSize; 8 Bytes */
+- 0x00,
+- 0xff /* __u8 ep_bInterval; 255 ms */
+-};
+-
+-static __u8 root_hub_hub_des[] =
+-{
+- 0x09, /* __u8 bLength; */
+- 0x29, /* __u8 bDescriptorType; Hub-descriptor */
+- 0x02, /* __u8 bNbrPorts; */
+- 0x00, /* __u16 wHubCharacteristics; */
+- 0x00,
+- 0x01, /* __u8 bPwrOn2pwrGood; 2ms */
+- 0x00, /* __u8 bHubContrCurrent; 0 mA */
+- 0x00, /* __u8 DeviceRemovable; *** 7 Ports max *** */
+- 0xff /* __u8 PortPwrCtrlMask; *** 7 ports max *** */
+-};
+-
+-static DEFINE_TIMER(bulk_start_timer, NULL, 0, 0);
+-static DEFINE_TIMER(bulk_eot_timer, NULL, 0, 0);
+-
+-/* We want the start timer to expire before the eot timer, because the former might start
+- traffic, thus making it unnecessary for the latter to time out. */
+-#define BULK_START_TIMER_INTERVAL (HZ/10) /* 100 ms */
+-#define BULK_EOT_TIMER_INTERVAL (HZ/10+2) /* 120 ms */
+-
+-#define OK(x) len = (x); dbg_rh("OK(%d): line: %d", x, __LINE__); break
+-#define CHECK_ALIGN(x) if (((__u32)(x)) & 0x00000003) \
+-{panic("Alignment check (DWORD) failed at %s:%s:%d\n", __FILE__, __FUNCTION__, __LINE__);}
+-
+-#define SLAB_FLAG (in_interrupt() ? SLAB_ATOMIC : SLAB_KERNEL)
+-#define KMALLOC_FLAG (in_interrupt() ? GFP_ATOMIC : GFP_KERNEL)
+-
+-/* Most helpful debugging aid */
+-#define assert(expr) ((void) ((expr) ? 0 : (err("assert failed at line %d",__LINE__))))
+-
+-/* Alternative assert define which stops after a failed assert. */
+-/*
+-#define assert(expr) \
+-{ \
+- if (!(expr)) { \
+- err("assert failed at line %d",__LINE__); \
+- while (1); \
+- } \
+-}
+-*/
+-
++/* Number of physical ports in Etrax 100LX */
++#define USB_ROOT_HUB_PORTS 2
+
+-/* FIXME: Should RX_BUF_SIZE be a config option, or maybe we should adjust it dynamically?
+- To adjust it dynamically we would have to get an interrupt when we reach the end
+- of the rx descriptor list, or when we get close to the end, and then allocate more
+- descriptors. */
+-
+-#define NBR_OF_RX_DESC 512
+-#define RX_DESC_BUF_SIZE 1024
+-#define RX_BUF_SIZE (NBR_OF_RX_DESC * RX_DESC_BUF_SIZE)
++const char hc_name[] = "hc-crisv10";
++const char product_desc[] = DESCRIPTION;
+
+ /* The number of epids is, among other things, used for pre-allocating
+ ctrl, bulk and isoc EP descriptors (one for each epid).
+@@ -221,4332 +53,4632 @@
+ #define NBR_OF_EPIDS 32
+
+ /* Support interrupt traffic intervals up to 128 ms. */
+-#define MAX_INTR_INTERVAL 128
++#define MAX_INTR_INTERVAL 128
+
+-/* If periodic traffic (intr or isoc) is to be used, then one entry in the EP table
+- must be "invalid". By this we mean that we shouldn't care about epid attentions
+- for this epid, or at least handle them differently from epid attentions for "valid"
+- epids. This define determines which one to use (don't change it). */
+-#define INVALID_EPID 31
++/* If periodic traffic (intr or isoc) is to be used, then one entry in the EP
++ table must be "invalid". By this we mean that we shouldn't care about epid
++ attentions for this epid, or at least handle them differently from epid
++ attentions for "valid" epids. This define determines which one to use
++ (don't change it). */
++#define INVALID_EPID 31
+ /* A special epid for the bulk dummys. */
+-#define DUMMY_EPID 30
+-
+-/* This is just a software cache for the valid entries in R_USB_EPT_DATA. */
+-static __u32 epid_usage_bitmask;
+-
+-/* A bitfield to keep information on in/out traffic is needed to uniquely identify
+- an endpoint on a device, since the most significant bit which indicates traffic
+- direction is lacking in the ep_id field (ETRAX epids can handle both in and
+- out traffic on endpoints that are otherwise identical). The USB framework, however,
+- relies on them to be handled separately. For example, bulk IN and OUT urbs cannot
+- be queued in the same list, since they would block each other. */
+-static __u32 epid_out_traffic;
+-
+-/* DMA IN cache bug. Align the DMA IN buffers to 32 bytes, i.e. a cache line.
+- Since RX_DESC_BUF_SIZE is 1024 is a multiple of 32, all rx buffers will be cache aligned. */
+-static volatile unsigned char RxBuf[RX_BUF_SIZE] __attribute__ ((aligned (32)));
+-static volatile USB_IN_Desc_t RxDescList[NBR_OF_RX_DESC] __attribute__ ((aligned (4)));
+-
+-/* Pointers into RxDescList. */
+-static volatile USB_IN_Desc_t *myNextRxDesc;
+-static volatile USB_IN_Desc_t *myLastRxDesc;
+-static volatile USB_IN_Desc_t *myPrevRxDesc;
+-
+-/* EP descriptors must be 32-bit aligned. */
+-static volatile USB_EP_Desc_t TxCtrlEPList[NBR_OF_EPIDS] __attribute__ ((aligned (4)));
+-static volatile USB_EP_Desc_t TxBulkEPList[NBR_OF_EPIDS] __attribute__ ((aligned (4)));
+-/* After each enabled bulk EP (IN or OUT) we put two disabled EP descriptors with the eol flag set,
+- causing the DMA to stop the DMA channel. The first of these two has the intr flag set, which
+- gives us a dma8_sub0_descr interrupt. When we receive this, we advance the DMA one step in the
+- EP list and then restart the bulk channel, thus forcing a switch between bulk EP descriptors
+- in each frame. */
+-static volatile USB_EP_Desc_t TxBulkDummyEPList[NBR_OF_EPIDS][2] __attribute__ ((aligned (4)));
+-
+-static volatile USB_EP_Desc_t TxIsocEPList[NBR_OF_EPIDS] __attribute__ ((aligned (4)));
+-static volatile USB_SB_Desc_t TxIsocSB_zout __attribute__ ((aligned (4)));
+-
+-static volatile USB_EP_Desc_t TxIntrEPList[MAX_INTR_INTERVAL] __attribute__ ((aligned (4)));
+-static volatile USB_SB_Desc_t TxIntrSB_zout __attribute__ ((aligned (4)));
+-
+-/* A zout transfer makes a memory access at the address of its buf pointer, which means that setting
+- this buf pointer to 0 will cause an access to the flash. In addition to this, setting sw_len to 0
+- results in a 16/32 bytes (depending on DMA burst size) transfer. Instead, we set it to 1, and point
+- it to this buffer. */
+-static int zout_buffer[4] __attribute__ ((aligned (4)));
++#define DUMMY_EPID 30
+
+-/* Cache for allocating new EP and SB descriptors. */
+-static kmem_cache_t *usb_desc_cache;
++/* Module settings */
+
+-/* Cache for the registers allocated in the top half. */
+-static kmem_cache_t *top_half_reg_cache;
++MODULE_DESCRIPTION(DESCRIPTION);
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Konrad Eriksson <konrad.eriksson@axis.se>");
+
+-/* Cache for the data allocated in the isoc descr top half. */
+-static kmem_cache_t *isoc_compl_cache;
+
+-static struct usb_bus *etrax_usb_bus;
++/* Module parameters */
+
+-/* This is a circular (double-linked) list of the active urbs for each epid.
+- The head is never removed, and new urbs are linked onto the list as
+- urb_entry_t elements. Don't reference urb_list directly; use the wrapper
+- functions instead. Note that working with these lists might require spinlock
+- protection. */
+-static struct list_head urb_list[NBR_OF_EPIDS];
++/* 0 = No ports enabled
++ 1 = Only port 1 enabled (on board ethernet on devboard)
++ 2 = Only port 2 enabled (external connector on devboard)
++ 3 = Both ports enabled
++*/
++static unsigned int ports = 3;
++module_param(ports, uint, S_IRUGO);
++MODULE_PARM_DESC(ports, "Bitmask indicating USB ports to use");
+
+-/* Read about the need and usage of this lock in submit_ctrl_urb. */
+-static spinlock_t urb_list_lock;
+
+-/* Used when unlinking asynchronously. */
+-static struct list_head urb_unlink_list;
++/***************************************************************************/
++/***************************************************************************/
++/* Shared global variables for this module */
++/***************************************************************************/
++/***************************************************************************/
+
+-/* for returning string descriptors in UTF-16LE */
+-static int ascii2utf (char *ascii, __u8 *utf, int utfmax)
+-{
+- int retval;
++/* EP descriptor lists for non period transfers. Must be 32-bit aligned. */
++static volatile struct USB_EP_Desc TxBulkEPList[NBR_OF_EPIDS] __attribute__ ((aligned (4)));
+
+- for (retval = 0; *ascii && utfmax > 1; utfmax -= 2, retval += 2) {
+- *utf++ = *ascii++ & 0x7f;
+- *utf++ = 0;
+- }
+- return retval;
+-}
++static volatile struct USB_EP_Desc TxCtrlEPList[NBR_OF_EPIDS] __attribute__ ((aligned (4)));
+
+-static int usb_root_hub_string (int id, int serial, char *type, __u8 *data, int len)
+-{
+- char buf [30];
++/* EP descriptor lists for period transfers. Must be 32-bit aligned. */
++static volatile struct USB_EP_Desc TxIntrEPList[MAX_INTR_INTERVAL] __attribute__ ((aligned (4)));
++static volatile struct USB_SB_Desc TxIntrSB_zout __attribute__ ((aligned (4)));
+
+- // assert (len > (2 * (sizeof (buf) + 1)));
+- // assert (strlen (type) <= 8);
++static volatile struct USB_EP_Desc TxIsocEPList[NBR_OF_EPIDS] __attribute__ ((aligned (4)));
++static volatile struct USB_SB_Desc TxIsocSB_zout __attribute__ ((aligned (4)));
+
+- // language ids
+- if (id == 0) {
+- *data++ = 4; *data++ = 3; /* 4 bytes data */
+- *data++ = 0; *data++ = 0; /* some language id */
+- return 4;
+-
+- // serial number
+- } else if (id == 1) {
+- sprintf (buf, "%x", serial);
+-
+- // product description
+- } else if (id == 2) {
+- sprintf (buf, "USB %s Root Hub", type);
+-
+- // id 3 == vendor description
+-
+- // unsupported IDs --> "stall"
+- } else
+- return 0;
+-
+- data [0] = 2 + ascii2utf (buf, data + 2, len - 2);
+- data [1] = 3;
+- return data [0];
+-}
++static volatile struct USB_SB_Desc TxIsocSBList[NBR_OF_EPIDS] __attribute__ ((aligned (4)));
+
+-/* Wrappers around the list functions (include/linux/list.h). */
++/* After each enabled bulk EP IN we put two disabled EP descriptors with the eol flag set,
++ causing the DMA to stop the DMA channel. The first of these two has the intr flag set, which
++ gives us a dma8_sub0_descr interrupt. When we receive this, we advance the DMA one step in the
++ EP list and then restart the bulk channel, thus forcing a switch between bulk EP descriptors
++ in each frame. */
++static volatile struct USB_EP_Desc TxBulkDummyEPList[NBR_OF_EPIDS][2] __attribute__ ((aligned (4)));
+
+-static inline int urb_list_empty(int epid)
++/* List of URB pointers, where each points to the active URB for a epid.
++ For Bulk, Ctrl and Intr this means which URB that currently is added to
++ DMA lists (Isoc URBs are all directly added to DMA lists). As soon as
++ URB has completed is the queue examined and the first URB in queue is
++ removed and moved to the activeUrbList while its state change to STARTED and
++ its transfer(s) gets added to DMA list (exception Isoc where URBs enter
++ state STARTED directly and added transfers added to DMA lists). */
++static struct urb *activeUrbList[NBR_OF_EPIDS];
++
++/* Additional software state info for each epid */
++static struct etrax_epid epid_state[NBR_OF_EPIDS];
++
++/* Timer handles for bulk traffic timer used to avoid DMA bug where DMA stops
++ even if there is new data waiting to be processed */
++static struct timer_list bulk_start_timer = TIMER_INITIALIZER(NULL, 0, 0);
++static struct timer_list bulk_eot_timer = TIMER_INITIALIZER(NULL, 0, 0);
++
++/* We want the start timer to expire before the eot timer, because the former
++ might start traffic, thus making it unnecessary for the latter to time
++ out. */
++#define BULK_START_TIMER_INTERVAL (HZ/50) /* 20 ms */
++#define BULK_EOT_TIMER_INTERVAL (HZ/16) /* 60 ms */
++
++/* Delay before a URB completion happen when it's scheduled to be delayed */
++#define LATER_TIMER_DELAY (HZ/50) /* 20 ms */
++
++/* Simplifying macros for checking software state info of a epid */
++/* ----------------------------------------------------------------------- */
++#define epid_inuse(epid) epid_state[epid].inuse
++#define epid_out_traffic(epid) epid_state[epid].out_traffic
++#define epid_isoc(epid) (epid_state[epid].type == PIPE_ISOCHRONOUS ? 1 : 0)
++#define epid_intr(epid) (epid_state[epid].type == PIPE_INTERRUPT ? 1 : 0)
++
++
++/***************************************************************************/
++/***************************************************************************/
++/* DEBUG FUNCTIONS */
++/***************************************************************************/
++/***************************************************************************/
++/* Note that these functions are always available in their "__" variants,
++ for use in error situations. The "__" missing variants are controlled by
++ the USB_DEBUG_DESC/USB_DEBUG_URB macros. */
++static void __dump_urb(struct urb* purb)
+ {
+- return list_empty(&urb_list[epid]);
++ struct crisv10_urb_priv *urb_priv = purb->hcpriv;
++ int urb_num = -1;
++ if(urb_priv) {
++ urb_num = urb_priv->urb_num;
++ }
++ printk("\nURB:0x%x[%d]\n", (unsigned int)purb, urb_num);
++ printk("dev :0x%08lx\n", (unsigned long)purb->dev);
++ printk("pipe :0x%08x\n", purb->pipe);
++ printk("status :%d\n", purb->status);
++ printk("transfer_flags :0x%08x\n", purb->transfer_flags);
++ printk("transfer_buffer :0x%08lx\n", (unsigned long)purb->transfer_buffer);
++ printk("transfer_buffer_length:%d\n", purb->transfer_buffer_length);
++ printk("actual_length :%d\n", purb->actual_length);
++ printk("setup_packet :0x%08lx\n", (unsigned long)purb->setup_packet);
++ printk("start_frame :%d\n", purb->start_frame);
++ printk("number_of_packets :%d\n", purb->number_of_packets);
++ printk("interval :%d\n", purb->interval);
++ printk("error_count :%d\n", purb->error_count);
++ printk("context :0x%08lx\n", (unsigned long)purb->context);
++ printk("complete :0x%08lx\n\n", (unsigned long)purb->complete);
++}
++
++static void __dump_in_desc(volatile struct USB_IN_Desc *in)
++{
++ printk("\nUSB_IN_Desc at 0x%08lx\n", (unsigned long)in);
++ printk(" sw_len : 0x%04x (%d)\n", in->sw_len, in->sw_len);
++ printk(" command : 0x%04x\n", in->command);
++ printk(" next : 0x%08lx\n", in->next);
++ printk(" buf : 0x%08lx\n", in->buf);
++ printk(" hw_len : 0x%04x (%d)\n", in->hw_len, in->hw_len);
++ printk(" status : 0x%04x\n\n", in->status);
++}
++
++static void __dump_sb_desc(volatile struct USB_SB_Desc *sb)
++{
++ char tt = (sb->command & 0x30) >> 4;
++ char *tt_string;
++
++ switch (tt) {
++ case 0:
++ tt_string = "zout";
++ break;
++ case 1:
++ tt_string = "in";
++ break;
++ case 2:
++ tt_string = "out";
++ break;
++ case 3:
++ tt_string = "setup";
++ break;
++ default:
++ tt_string = "unknown (weird)";
++ }
++
++ printk(" USB_SB_Desc at 0x%08lx ", (unsigned long)sb);
++ printk(" command:0x%04x (", sb->command);
++ printk("rem:%d ", (sb->command & 0x3f00) >> 8);
++ printk("full:%d ", (sb->command & 0x40) >> 6);
++ printk("tt:%d(%s) ", tt, tt_string);
++ printk("intr:%d ", (sb->command & 0x8) >> 3);
++ printk("eot:%d ", (sb->command & 0x2) >> 1);
++ printk("eol:%d)", sb->command & 0x1);
++ printk(" sw_len:0x%04x(%d)", sb->sw_len, sb->sw_len);
++ printk(" next:0x%08lx", sb->next);
++ printk(" buf:0x%08lx\n", sb->buf);
++}
++
++
++static void __dump_ep_desc(volatile struct USB_EP_Desc *ep)
++{
++ printk("USB_EP_Desc at 0x%08lx ", (unsigned long)ep);
++ printk(" command:0x%04x (", ep->command);
++ printk("ep_id:%d ", (ep->command & 0x1f00) >> 8);
++ printk("enable:%d ", (ep->command & 0x10) >> 4);
++ printk("intr:%d ", (ep->command & 0x8) >> 3);
++ printk("eof:%d ", (ep->command & 0x2) >> 1);
++ printk("eol:%d)", ep->command & 0x1);
++ printk(" hw_len:0x%04x(%d)", ep->hw_len, ep->hw_len);
++ printk(" next:0x%08lx", ep->next);
++ printk(" sub:0x%08lx\n", ep->sub);
+ }
+
+-/* Returns first urb for this epid, or NULL if list is empty. */
+-static inline struct urb *urb_list_first(int epid)
++static inline void __dump_ep_list(int pipe_type)
+ {
+- struct urb *first_urb = 0;
++ volatile struct USB_EP_Desc *ep;
++ volatile struct USB_EP_Desc *first_ep;
++ volatile struct USB_SB_Desc *sb;
++
++ switch (pipe_type)
++ {
++ case PIPE_BULK:
++ first_ep = &TxBulkEPList[0];
++ break;
++ case PIPE_CONTROL:
++ first_ep = &TxCtrlEPList[0];
++ break;
++ case PIPE_INTERRUPT:
++ first_ep = &TxIntrEPList[0];
++ break;
++ case PIPE_ISOCHRONOUS:
++ first_ep = &TxIsocEPList[0];
++ break;
++ default:
++ warn("Cannot dump unknown traffic type");
++ return;
++ }
++ ep = first_ep;
++
++ printk("\n\nDumping EP list...\n\n");
++
++ do {
++ __dump_ep_desc(ep);
++ /* Cannot phys_to_virt on 0 as it turns into 80000000, which is != 0. */
++ sb = ep->sub ? phys_to_virt(ep->sub) : 0;
++ while (sb) {
++ __dump_sb_desc(sb);
++ sb = sb->next ? phys_to_virt(sb->next) : 0;
++ }
++ ep = (volatile struct USB_EP_Desc *)(phys_to_virt(ep->next));
+
+- if (!urb_list_empty(epid)) {
+- /* Get the first urb (i.e. head->next). */
+- urb_entry_t *urb_entry = list_entry((&urb_list[epid])->next, urb_entry_t, list);
+- first_urb = urb_entry->urb;
+- }
+- return first_urb;
++ } while (ep != first_ep);
+ }
+
+-/* Adds an urb_entry last in the list for this epid. */
+-static inline void urb_list_add(struct urb *urb, int epid)
++static inline void __dump_ept_data(int epid)
+ {
+- urb_entry_t *urb_entry = (urb_entry_t *)kmalloc(sizeof(urb_entry_t), KMALLOC_FLAG);
+- assert(urb_entry);
++ unsigned long flags;
++ __u32 r_usb_ept_data;
+
+- urb_entry->urb = urb;
+- list_add_tail(&urb_entry->list, &urb_list[epid]);
++ if (epid < 0 || epid > 31) {
++ printk("Cannot dump ept data for invalid epid %d\n", epid);
++ return;
++ }
++
++ local_irq_save(flags);
++ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, epid);
++ nop();
++ r_usb_ept_data = *R_USB_EPT_DATA;
++ local_irq_restore(flags);
++
++ printk(" R_USB_EPT_DATA = 0x%x for epid %d :\n", r_usb_ept_data, epid);
++ if (r_usb_ept_data == 0) {
++ /* No need for more detailed printing. */
++ return;
++ }
++ printk(" valid : %d\n", (r_usb_ept_data & 0x80000000) >> 31);
++ printk(" hold : %d\n", (r_usb_ept_data & 0x40000000) >> 30);
++ printk(" error_count_in : %d\n", (r_usb_ept_data & 0x30000000) >> 28);
++ printk(" t_in : %d\n", (r_usb_ept_data & 0x08000000) >> 27);
++ printk(" low_speed : %d\n", (r_usb_ept_data & 0x04000000) >> 26);
++ printk(" port : %d\n", (r_usb_ept_data & 0x03000000) >> 24);
++ printk(" error_code : %d\n", (r_usb_ept_data & 0x00c00000) >> 22);
++ printk(" t_out : %d\n", (r_usb_ept_data & 0x00200000) >> 21);
++ printk(" error_count_out : %d\n", (r_usb_ept_data & 0x00180000) >> 19);
++ printk(" max_len : %d\n", (r_usb_ept_data & 0x0003f800) >> 11);
++ printk(" ep : %d\n", (r_usb_ept_data & 0x00000780) >> 7);
++ printk(" dev : %d\n", (r_usb_ept_data & 0x0000003f));
++}
++
++static inline void __dump_ept_data_iso(int epid)
++{
++ unsigned long flags;
++ __u32 ept_data;
++
++ if (epid < 0 || epid > 31) {
++ printk("Cannot dump ept data for invalid epid %d\n", epid);
++ return;
++ }
++
++ local_irq_save(flags);
++ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, epid);
++ nop();
++ ept_data = *R_USB_EPT_DATA_ISO;
++ local_irq_restore(flags);
++
++ printk(" R_USB_EPT_DATA = 0x%x for epid %d :\n", ept_data, epid);
++ if (ept_data == 0) {
++ /* No need for more detailed printing. */
++ return;
++ }
++ printk(" valid : %d\n", IO_EXTRACT(R_USB_EPT_DATA_ISO, valid,
++ ept_data));
++ printk(" port : %d\n", IO_EXTRACT(R_USB_EPT_DATA_ISO, port,
++ ept_data));
++ printk(" error_code : %d\n", IO_EXTRACT(R_USB_EPT_DATA_ISO, error_code,
++ ept_data));
++ printk(" max_len : %d\n", IO_EXTRACT(R_USB_EPT_DATA_ISO, max_len,
++ ept_data));
++ printk(" ep : %d\n", IO_EXTRACT(R_USB_EPT_DATA_ISO, ep,
++ ept_data));
++ printk(" dev : %d\n", IO_EXTRACT(R_USB_EPT_DATA_ISO, dev,
++ ept_data));
+ }
+
+-/* Search through the list for an element that contains this urb. (The list
+- is expected to be short and the one we are about to delete will often be
+- the first in the list.) */
+-static inline urb_entry_t *__urb_list_entry(struct urb *urb, int epid)
++static inline void __dump_ept_data_list(void)
+ {
+- struct list_head *entry;
+- struct list_head *tmp;
+- urb_entry_t *urb_entry;
+-
+- list_for_each_safe(entry, tmp, &urb_list[epid]) {
+- urb_entry = list_entry(entry, urb_entry_t, list);
+- assert(urb_entry);
+- assert(urb_entry->urb);
+-
+- if (urb_entry->urb == urb) {
+- return urb_entry;
+- }
+- }
+- return 0;
+-}
++ int i;
+
+-/* Delete an urb from the list. */
+-static inline void urb_list_del(struct urb *urb, int epid)
+-{
+- urb_entry_t *urb_entry = __urb_list_entry(urb, epid);
+- assert(urb_entry);
++ printk("Dumping the whole R_USB_EPT_DATA list\n");
+
+- /* Delete entry and free. */
+- list_del(&urb_entry->list);
+- kfree(urb_entry);
++ for (i = 0; i < 32; i++) {
++ __dump_ept_data(i);
++ }
++}
++
++static void debug_epid(int epid) {
++ int i;
++
++ if(epid_isoc(epid)) {
++ __dump_ept_data_iso(epid);
++ } else {
++ __dump_ept_data(epid);
++ }
++
++ printk("Bulk:\n");
++ for(i = 0; i < 32; i++) {
++ if(IO_EXTRACT(USB_EP_command, epid, TxBulkEPList[i].command) ==
++ epid) {
++ printk("%d: ", i); __dump_ep_desc(&(TxBulkEPList[i]));
++ }
++ }
++
++ printk("Ctrl:\n");
++ for(i = 0; i < 32; i++) {
++ if(IO_EXTRACT(USB_EP_command, epid, TxCtrlEPList[i].command) ==
++ epid) {
++ printk("%d: ", i); __dump_ep_desc(&(TxCtrlEPList[i]));
++ }
++ }
++
++ printk("Intr:\n");
++ for(i = 0; i < MAX_INTR_INTERVAL; i++) {
++ if(IO_EXTRACT(USB_EP_command, epid, TxIntrEPList[i].command) ==
++ epid) {
++ printk("%d: ", i); __dump_ep_desc(&(TxIntrEPList[i]));
++ }
++ }
++
++ printk("Isoc:\n");
++ for(i = 0; i < 32; i++) {
++ if(IO_EXTRACT(USB_EP_command, epid, TxIsocEPList[i].command) ==
++ epid) {
++ printk("%d: ", i); __dump_ep_desc(&(TxIsocEPList[i]));
++ }
++ }
++
++ __dump_ept_data_list();
++ __dump_ep_list(PIPE_INTERRUPT);
++ printk("\n\n");
++}
++
++
++
++char* hcd_status_to_str(__u8 bUsbStatus) {
++ static char hcd_status_str[128];
++ hcd_status_str[0] = '\0';
++ if(bUsbStatus & IO_STATE(R_USB_STATUS, ourun, yes)) {
++ strcat(hcd_status_str, "ourun ");
++ }
++ if(bUsbStatus & IO_STATE(R_USB_STATUS, perror, yes)) {
++ strcat(hcd_status_str, "perror ");
++ }
++ if(bUsbStatus & IO_STATE(R_USB_STATUS, device_mode, yes)) {
++ strcat(hcd_status_str, "device_mode ");
++ }
++ if(bUsbStatus & IO_STATE(R_USB_STATUS, host_mode, yes)) {
++ strcat(hcd_status_str, "host_mode ");
++ }
++ if(bUsbStatus & IO_STATE(R_USB_STATUS, started, yes)) {
++ strcat(hcd_status_str, "started ");
++ }
++ if(bUsbStatus & IO_STATE(R_USB_STATUS, running, yes)) {
++ strcat(hcd_status_str, "running ");
++ }
++ return hcd_status_str;
++}
++
++
++char* sblist_to_str(struct USB_SB_Desc* sb_desc) {
++ static char sblist_to_str_buff[128];
++ char tmp[32], tmp2[32];
++ sblist_to_str_buff[0] = '\0';
++ while(sb_desc != NULL) {
++ switch(IO_EXTRACT(USB_SB_command, tt, sb_desc->command)) {
++ case 0: sprintf(tmp, "zout"); break;
++ case 1: sprintf(tmp, "in"); break;
++ case 2: sprintf(tmp, "out"); break;
++ case 3: sprintf(tmp, "setup"); break;
++ }
++ sprintf(tmp2, "(%s %d)", tmp, sb_desc->sw_len);
++ strcat(sblist_to_str_buff, tmp2);
++ if(sb_desc->next != 0) {
++ sb_desc = phys_to_virt(sb_desc->next);
++ } else {
++ sb_desc = NULL;
++ }
++ }
++ return sblist_to_str_buff;
++}
++
++char* port_status_to_str(__u16 wPortStatus) {
++ static char port_status_str[128];
++ port_status_str[0] = '\0';
++ if(wPortStatus & IO_STATE(R_USB_RH_PORT_STATUS_1, connected, yes)) {
++ strcat(port_status_str, "connected ");
++ }
++ if(wPortStatus & IO_STATE(R_USB_RH_PORT_STATUS_1, enabled, yes)) {
++ strcat(port_status_str, "enabled ");
++ }
++ if(wPortStatus & IO_STATE(R_USB_RH_PORT_STATUS_1, suspended, yes)) {
++ strcat(port_status_str, "suspended ");
++ }
++ if(wPortStatus & IO_STATE(R_USB_RH_PORT_STATUS_1, reset, yes)) {
++ strcat(port_status_str, "reset ");
++ }
++ if(wPortStatus & IO_STATE(R_USB_RH_PORT_STATUS_1, speed, full)) {
++ strcat(port_status_str, "full-speed ");
++ } else {
++ strcat(port_status_str, "low-speed ");
++ }
++ return port_status_str;
++}
++
++
++char* endpoint_to_str(struct usb_endpoint_descriptor *ed) {
++ static char endpoint_to_str_buff[128];
++ char tmp[32];
++ int epnum = ed->bEndpointAddress & 0x0F;
++ int dir = ed->bEndpointAddress & 0x80;
++ int type = ed->bmAttributes & 0x03;
++ endpoint_to_str_buff[0] = '\0';
++ sprintf(endpoint_to_str_buff, "ep:%d ", epnum);
++ switch(type) {
++ case 0:
++ sprintf(tmp, " ctrl");
++ break;
++ case 1:
++ sprintf(tmp, " isoc");
++ break;
++ case 2:
++ sprintf(tmp, " bulk");
++ break;
++ case 3:
++ sprintf(tmp, " intr");
++ break;
++ }
++ strcat(endpoint_to_str_buff, tmp);
++ if(dir) {
++ sprintf(tmp, " in");
++ } else {
++ sprintf(tmp, " out");
++ }
++ strcat(endpoint_to_str_buff, tmp);
++
++ return endpoint_to_str_buff;
++}
++
++/* Debug helper functions for Transfer Controller */
++char* pipe_to_str(unsigned int pipe) {
++ static char pipe_to_str_buff[128];
++ char tmp[64];
++ sprintf(pipe_to_str_buff, "dir:%s", str_dir(pipe));
++ sprintf(tmp, " type:%s", str_type(pipe));
++ strcat(pipe_to_str_buff, tmp);
++
++ sprintf(tmp, " dev:%d", usb_pipedevice(pipe));
++ strcat(pipe_to_str_buff, tmp);
++ sprintf(tmp, " ep:%d", usb_pipeendpoint(pipe));
++ strcat(pipe_to_str_buff, tmp);
++ return pipe_to_str_buff;
+ }
+
+-/* Move an urb to the end of the list. */
+-static inline void urb_list_move_last(struct urb *urb, int epid)
+-{
+- urb_entry_t *urb_entry = __urb_list_entry(urb, epid);
+- assert(urb_entry);
+-
+- list_move_tail(&urb_entry->list, &urb_list[epid]);
+-}
+
+-/* Get the next urb in the list. */
+-static inline struct urb *urb_list_next(struct urb *urb, int epid)
+-{
+- urb_entry_t *urb_entry = __urb_list_entry(urb, epid);
++#define USB_DEBUG_DESC 1
+
+- assert(urb_entry);
++#ifdef USB_DEBUG_DESC
++#define dump_in_desc(x) __dump_in_desc(x)
++#define dump_sb_desc(...) __dump_sb_desc(...)
++#define dump_ep_desc(x) __dump_ep_desc(x)
++#define dump_ept_data(x) __dump_ept_data(x)
++#else
++#define dump_in_desc(...) do {} while (0)
++#define dump_sb_desc(...) do {} while (0)
++#define dump_ep_desc(...) do {} while (0)
++#endif
+
+- if (urb_entry->list.next != &urb_list[epid]) {
+- struct list_head *elem = urb_entry->list.next;
+- urb_entry = list_entry(elem, urb_entry_t, list);
+- return urb_entry->urb;
+- } else {
+- return NULL;
+- }
+-}
+
++/* Uncomment this to enable massive function call trace
++ #define USB_DEBUG_TRACE */
+
++#ifdef USB_DEBUG_TRACE
++#define DBFENTER (printk(": Entering: %s\n", __FUNCTION__))
++#define DBFEXIT (printk(": Exiting: %s\n", __FUNCTION__))
++#else
++#define DBFENTER do {} while (0)
++#define DBFEXIT do {} while (0)
++#endif
+
+-/* For debug purposes only. */
+-static inline void urb_list_dump(int epid)
+-{
+- struct list_head *entry;
+- struct list_head *tmp;
+- urb_entry_t *urb_entry;
+- int i = 0;
+-
+- info("Dumping urb list for epid %d", epid);
+-
+- list_for_each_safe(entry, tmp, &urb_list[epid]) {
+- urb_entry = list_entry(entry, urb_entry_t, list);
+- info(" entry %d, urb = 0x%lx", i, (unsigned long)urb_entry->urb);
+- }
+-}
++#define CHECK_ALIGN(x) if (((__u32)(x)) & 0x00000003) \
++{panic("Alignment check (DWORD) failed at %s:%s:%d\n", __FILE__, __FUNCTION__, __LINE__);}
+
+-static void init_rx_buffers(void);
+-static int etrax_rh_unlink_urb(struct urb *urb);
+-static void etrax_rh_send_irq(struct urb *urb);
+-static void etrax_rh_init_int_timer(struct urb *urb);
+-static void etrax_rh_int_timer_do(unsigned long ptr);
+-
+-static int etrax_usb_setup_epid(struct urb *urb);
+-static int etrax_usb_lookup_epid(struct urb *urb);
+-static int etrax_usb_allocate_epid(void);
+-static void etrax_usb_free_epid(int epid);
+-
+-static int etrax_remove_from_sb_list(struct urb *urb);
+-
+-static void* etrax_usb_buffer_alloc(struct usb_bus* bus, size_t size,
+- unsigned mem_flags, dma_addr_t *dma);
+-static void etrax_usb_buffer_free(struct usb_bus *bus, size_t size, void *addr, dma_addr_t dma);
+-
+-static void etrax_usb_add_to_bulk_sb_list(struct urb *urb, int epid);
+-static void etrax_usb_add_to_ctrl_sb_list(struct urb *urb, int epid);
+-static void etrax_usb_add_to_intr_sb_list(struct urb *urb, int epid);
+-static void etrax_usb_add_to_isoc_sb_list(struct urb *urb, int epid);
+-
+-static int etrax_usb_submit_bulk_urb(struct urb *urb);
+-static int etrax_usb_submit_ctrl_urb(struct urb *urb);
+-static int etrax_usb_submit_intr_urb(struct urb *urb);
+-static int etrax_usb_submit_isoc_urb(struct urb *urb);
+-
+-static int etrax_usb_submit_urb(struct urb *urb, unsigned mem_flags);
+-static int etrax_usb_unlink_urb(struct urb *urb, int status);
+-static int etrax_usb_get_frame_number(struct usb_device *usb_dev);
+-
+-static irqreturn_t etrax_usb_tx_interrupt(int irq, void *vhc);
+-static irqreturn_t etrax_usb_rx_interrupt(int irq, void *vhc);
+-static irqreturn_t etrax_usb_hc_interrupt_top_half(int irq, void *vhc);
+-static void etrax_usb_hc_interrupt_bottom_half(void *data);
+-
+-static void etrax_usb_isoc_descr_interrupt_bottom_half(void *data);
+-
+-
+-/* The following is a list of interrupt handlers for the host controller interrupts we use.
+- They are called from etrax_usb_hc_interrupt_bottom_half. */
+-static void etrax_usb_hc_isoc_eof_interrupt(void);
+-static void etrax_usb_hc_bulk_eot_interrupt(int timer_induced);
+-static void etrax_usb_hc_epid_attn_interrupt(usb_interrupt_registers_t *reg);
+-static void etrax_usb_hc_port_status_interrupt(usb_interrupt_registers_t *reg);
+-static void etrax_usb_hc_ctl_status_interrupt(usb_interrupt_registers_t *reg);
+-
+-static int etrax_rh_submit_urb (struct urb *urb);
+-
+-/* Forward declaration needed because they are used in the rx interrupt routine. */
+-static void etrax_usb_complete_urb(struct urb *urb, int status);
+-static void etrax_usb_complete_bulk_urb(struct urb *urb, int status);
+-static void etrax_usb_complete_ctrl_urb(struct urb *urb, int status);
+-static void etrax_usb_complete_intr_urb(struct urb *urb, int status);
+-static void etrax_usb_complete_isoc_urb(struct urb *urb, int status);
++/* Most helpful debugging aid */
++#define ASSERT(expr) ((void) ((expr) ? 0 : (err("assert failed at: %s %d",__FUNCTION__, __LINE__))))
+
+-static int etrax_usb_hc_init(void);
+-static void etrax_usb_hc_cleanup(void);
+
+-static struct usb_operations etrax_usb_device_operations =
+-{
+- .get_frame_number = etrax_usb_get_frame_number,
+- .submit_urb = etrax_usb_submit_urb,
+- .unlink_urb = etrax_usb_unlink_urb,
+- .buffer_alloc = etrax_usb_buffer_alloc,
+- .buffer_free = etrax_usb_buffer_free
+-};
++/***************************************************************************/
++/***************************************************************************/
++/* Forward declarations */
++/***************************************************************************/
++/***************************************************************************/
++void crisv10_hcd_epid_attn_irq(struct crisv10_irq_reg *reg);
++void crisv10_hcd_port_status_irq(struct crisv10_irq_reg *reg);
++void crisv10_hcd_ctl_status_irq(struct crisv10_irq_reg *reg);
++void crisv10_hcd_isoc_eof_irq(struct crisv10_irq_reg *reg);
++
++void rh_port_status_change(__u16[]);
++int rh_clear_port_feature(__u8, __u16);
++int rh_set_port_feature(__u8, __u16);
++static void rh_disable_port(unsigned int port);
++
++static void check_finished_bulk_tx_epids(struct usb_hcd *hcd,
++ int timer);
++
++static int tc_setup_epid(struct usb_host_endpoint *ep, struct urb *urb,
++ int mem_flags);
++static void tc_free_epid(struct usb_host_endpoint *ep);
++static int tc_allocate_epid(void);
++static void tc_finish_urb(struct usb_hcd *hcd, struct urb *urb, int status);
++static void tc_finish_urb_later(struct usb_hcd *hcd, struct urb *urb,
++ int status);
++
++static int urb_priv_create(struct usb_hcd *hcd, struct urb *urb, int epid,
++ int mem_flags);
++static void urb_priv_free(struct usb_hcd *hcd, struct urb *urb);
++
++static inline struct urb *urb_list_first(int epid);
++static inline void urb_list_add(struct urb *urb, int epid,
++ int mem_flags);
++static inline urb_entry_t *urb_list_entry(struct urb *urb, int epid);
++static inline void urb_list_del(struct urb *urb, int epid);
++static inline void urb_list_move_last(struct urb *urb, int epid);
++static inline struct urb *urb_list_next(struct urb *urb, int epid);
++
++int create_sb_for_urb(struct urb *urb, int mem_flags);
++int init_intr_urb(struct urb *urb, int mem_flags);
++
++static inline void etrax_epid_set(__u8 index, __u32 data);
++static inline void etrax_epid_clear_error(__u8 index);
++static inline void etrax_epid_set_toggle(__u8 index, __u8 dirout,
++ __u8 toggle);
++static inline __u8 etrax_epid_get_toggle(__u8 index, __u8 dirout);
++static inline __u32 etrax_epid_get(__u8 index);
++
++/* We're accessing the same register position in Etrax so
++ when we do full access the internal difference doesn't matter */
++#define etrax_epid_iso_set(index, data) etrax_epid_set(index, data)
++#define etrax_epid_iso_get(index) etrax_epid_get(index)
++
++
++static void tc_dma_process_isoc_urb(struct urb *urb);
++static void tc_dma_process_queue(int epid);
++static void tc_dma_unlink_intr_urb(struct urb *urb);
++static irqreturn_t tc_dma_tx_interrupt(int irq, void *vhc);
++static irqreturn_t tc_dma_rx_interrupt(int irq, void *vhc);
++
++static void tc_bulk_start_timer_func(unsigned long dummy);
++static void tc_bulk_eot_timer_func(unsigned long dummy);
++
++
++/*************************************************************/
++/*************************************************************/
++/* Host Controler Driver block */
++/*************************************************************/
++/*************************************************************/
++
++/* HCD operations */
++static irqreturn_t crisv10_hcd_top_irq(int irq, void*);
++static int crisv10_hcd_reset(struct usb_hcd *);
++static int crisv10_hcd_start(struct usb_hcd *);
++static void crisv10_hcd_stop(struct usb_hcd *);
++#ifdef CONFIG_PM
++static int crisv10_hcd_suspend(struct device *, u32, u32);
++static int crisv10_hcd_resume(struct device *, u32);
++#endif /* CONFIG_PM */
++static int crisv10_hcd_get_frame(struct usb_hcd *);
++
++static int tc_urb_enqueue(struct usb_hcd *, struct usb_host_endpoint *ep, struct urb *, gfp_t mem_flags);
++static int tc_urb_dequeue(struct usb_hcd *, struct urb *);
++static void tc_endpoint_disable(struct usb_hcd *, struct usb_host_endpoint *ep);
++
++static int rh_status_data_request(struct usb_hcd *, char *);
++static int rh_control_request(struct usb_hcd *, u16, u16, u16, char*, u16);
++
++#ifdef CONFIG_PM
++static int crisv10_hcd_hub_suspend(struct usb_hcd *);
++static int crisv10_hcd_hub_resume(struct usb_hcd *);
++#endif /* CONFIG_PM */
++#ifdef CONFIG_USB_OTG
++static int crisv10_hcd_start_port_reset(struct usb_hcd *, unsigned);
++#endif /* CONFIG_USB_OTG */
++
++/* host controller driver interface */
++static const struct hc_driver crisv10_hc_driver =
++ {
++ .description = hc_name,
++ .product_desc = product_desc,
++ .hcd_priv_size = sizeof(struct crisv10_hcd),
++
++ /* Attaching IRQ handler manualy in probe() */
++ /* .irq = crisv10_hcd_irq, */
++
++ .flags = HCD_USB11,
++
++ /* called to init HCD and root hub */
++ .reset = crisv10_hcd_reset,
++ .start = crisv10_hcd_start,
++
++ /* cleanly make HCD stop writing memory and doing I/O */
++ .stop = crisv10_hcd_stop,
++
++ /* return current frame number */
++ .get_frame_number = crisv10_hcd_get_frame,
++
++
++ /* Manage i/o requests via the Transfer Controller */
++ .urb_enqueue = tc_urb_enqueue,
++ .urb_dequeue = tc_urb_dequeue,
++
++ /* hw synch, freeing endpoint resources that urb_dequeue can't */
++ .endpoint_disable = tc_endpoint_disable,
++
++
++ /* Root Hub support */
++ .hub_status_data = rh_status_data_request,
++ .hub_control = rh_control_request,
++#ifdef CONFIG_PM
++ .hub_suspend = rh_suspend_request,
++ .hub_resume = rh_resume_request,
++#endif /* CONFIG_PM */
++#ifdef CONFIG_USB_OTG
++ .start_port_reset = crisv10_hcd_start_port_reset,
++#endif /* CONFIG_USB_OTG */
++ };
+
+-/* Note that these functions are always available in their "__" variants, for use in
+- error situations. The "__" missing variants are controlled by the USB_DEBUG_DESC/
+- USB_DEBUG_URB macros. */
+-static void __dump_urb(struct urb* purb)
+-{
+- printk("\nurb :0x%08lx\n", (unsigned long)purb);
+- printk("dev :0x%08lx\n", (unsigned long)purb->dev);
+- printk("pipe :0x%08x\n", purb->pipe);
+- printk("status :%d\n", purb->status);
+- printk("transfer_flags :0x%08x\n", purb->transfer_flags);
+- printk("transfer_buffer :0x%08lx\n", (unsigned long)purb->transfer_buffer);
+- printk("transfer_buffer_length:%d\n", purb->transfer_buffer_length);
+- printk("actual_length :%d\n", purb->actual_length);
+- printk("setup_packet :0x%08lx\n", (unsigned long)purb->setup_packet);
+- printk("start_frame :%d\n", purb->start_frame);
+- printk("number_of_packets :%d\n", purb->number_of_packets);
+- printk("interval :%d\n", purb->interval);
+- printk("error_count :%d\n", purb->error_count);
+- printk("context :0x%08lx\n", (unsigned long)purb->context);
+- printk("complete :0x%08lx\n\n", (unsigned long)purb->complete);
+-}
+
+-static void __dump_in_desc(volatile USB_IN_Desc_t *in)
+-{
+- printk("\nUSB_IN_Desc at 0x%08lx\n", (unsigned long)in);
+- printk(" sw_len : 0x%04x (%d)\n", in->sw_len, in->sw_len);
+- printk(" command : 0x%04x\n", in->command);
+- printk(" next : 0x%08lx\n", in->next);
+- printk(" buf : 0x%08lx\n", in->buf);
+- printk(" hw_len : 0x%04x (%d)\n", in->hw_len, in->hw_len);
+- printk(" status : 0x%04x\n\n", in->status);
+-}
++/*
++ * conversion between pointers to a hcd and the corresponding
++ * crisv10_hcd
++ */
+
+-static void __dump_sb_desc(volatile USB_SB_Desc_t *sb)
++static inline struct crisv10_hcd *hcd_to_crisv10_hcd(struct usb_hcd *hcd)
+ {
+- char tt = (sb->command & 0x30) >> 4;
+- char *tt_string;
+-
+- switch (tt) {
+- case 0:
+- tt_string = "zout";
+- break;
+- case 1:
+- tt_string = "in";
+- break;
+- case 2:
+- tt_string = "out";
+- break;
+- case 3:
+- tt_string = "setup";
+- break;
+- default:
+- tt_string = "unknown (weird)";
+- }
+-
+- printk("\n USB_SB_Desc at 0x%08lx\n", (unsigned long)sb);
+- printk(" command : 0x%04x\n", sb->command);
+- printk(" rem : %d\n", (sb->command & 0x3f00) >> 8);
+- printk(" full : %d\n", (sb->command & 0x40) >> 6);
+- printk(" tt : %d (%s)\n", tt, tt_string);
+- printk(" intr : %d\n", (sb->command & 0x8) >> 3);
+- printk(" eot : %d\n", (sb->command & 0x2) >> 1);
+- printk(" eol : %d\n", sb->command & 0x1);
+- printk(" sw_len : 0x%04x (%d)\n", sb->sw_len, sb->sw_len);
+- printk(" next : 0x%08lx\n", sb->next);
+- printk(" buf : 0x%08lx\n\n", sb->buf);
++ return (struct crisv10_hcd *) hcd->hcd_priv;
+ }
+
+-
+-static void __dump_ep_desc(volatile USB_EP_Desc_t *ep)
++static inline struct usb_hcd *crisv10_hcd_to_hcd(struct crisv10_hcd *hcd)
+ {
+- printk("\nUSB_EP_Desc at 0x%08lx\n", (unsigned long)ep);
+- printk(" command : 0x%04x\n", ep->command);
+- printk(" ep_id : %d\n", (ep->command & 0x1f00) >> 8);
+- printk(" enable : %d\n", (ep->command & 0x10) >> 4);
+- printk(" intr : %d\n", (ep->command & 0x8) >> 3);
+- printk(" eof : %d\n", (ep->command & 0x2) >> 1);
+- printk(" eol : %d\n", ep->command & 0x1);
+- printk(" hw_len : 0x%04x (%d)\n", ep->hw_len, ep->hw_len);
+- printk(" next : 0x%08lx\n", ep->next);
+- printk(" sub : 0x%08lx\n\n", ep->sub);
++ return container_of((void *) hcd, struct usb_hcd, hcd_priv);
+ }
+
+-static inline void __dump_ep_list(int pipe_type)
++/* check if specified port is in use */
++static inline int port_in_use(unsigned int port)
+ {
+- volatile USB_EP_Desc_t *ep;
+- volatile USB_EP_Desc_t *first_ep;
+- volatile USB_SB_Desc_t *sb;
+-
+- switch (pipe_type)
+- {
+- case PIPE_BULK:
+- first_ep = &TxBulkEPList[0];
+- break;
+- case PIPE_CONTROL:
+- first_ep = &TxCtrlEPList[0];
+- break;
+- case PIPE_INTERRUPT:
+- first_ep = &TxIntrEPList[0];
+- break;
+- case PIPE_ISOCHRONOUS:
+- first_ep = &TxIsocEPList[0];
+- break;
+- default:
+- warn("Cannot dump unknown traffic type");
+- return;
+- }
+- ep = first_ep;
+-
+- printk("\n\nDumping EP list...\n\n");
+-
+- do {
+- __dump_ep_desc(ep);
+- /* Cannot phys_to_virt on 0 as it turns into 80000000, which is != 0. */
+- sb = ep->sub ? phys_to_virt(ep->sub) : 0;
+- while (sb) {
+- __dump_sb_desc(sb);
+- sb = sb->next ? phys_to_virt(sb->next) : 0;
+- }
+- ep = (volatile USB_EP_Desc_t *)(phys_to_virt(ep->next));
+-
+- } while (ep != first_ep);
++ return ports & (1 << port);
+ }
+
+-static inline void __dump_ept_data(int epid)
++/* number of ports in use */
++static inline unsigned int num_ports(void)
+ {
+- unsigned long flags;
+- __u32 r_usb_ept_data;
+-
+- if (epid < 0 || epid > 31) {
+- printk("Cannot dump ept data for invalid epid %d\n", epid);
+- return;
+- }
+-
+- save_flags(flags);
+- cli();
+- *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, epid);
+- nop();
+- r_usb_ept_data = *R_USB_EPT_DATA;
+- restore_flags(flags);
+-
+- printk("\nR_USB_EPT_DATA = 0x%x for epid %d :\n", r_usb_ept_data, epid);
+- if (r_usb_ept_data == 0) {
+- /* No need for more detailed printing. */
+- return;
+- }
+- printk(" valid : %d\n", (r_usb_ept_data & 0x80000000) >> 31);
+- printk(" hold : %d\n", (r_usb_ept_data & 0x40000000) >> 30);
+- printk(" error_count_in : %d\n", (r_usb_ept_data & 0x30000000) >> 28);
+- printk(" t_in : %d\n", (r_usb_ept_data & 0x08000000) >> 27);
+- printk(" low_speed : %d\n", (r_usb_ept_data & 0x04000000) >> 26);
+- printk(" port : %d\n", (r_usb_ept_data & 0x03000000) >> 24);
+- printk(" error_code : %d\n", (r_usb_ept_data & 0x00c00000) >> 22);
+- printk(" t_out : %d\n", (r_usb_ept_data & 0x00200000) >> 21);
+- printk(" error_count_out : %d\n", (r_usb_ept_data & 0x00180000) >> 19);
+- printk(" max_len : %d\n", (r_usb_ept_data & 0x0003f800) >> 11);
+- printk(" ep : %d\n", (r_usb_ept_data & 0x00000780) >> 7);
+- printk(" dev : %d\n", (r_usb_ept_data & 0x0000003f));
++ unsigned int i, num = 0;
++ for (i = 0; i < USB_ROOT_HUB_PORTS; i++)
++ if (port_in_use(i))
++ num++;
++ return num;
+ }
+
+-static inline void __dump_ept_data_list(void)
++/* map hub port number to the port number used internally by the HC */
++static inline unsigned int map_port(unsigned int port)
+ {
+- int i;
+-
+- printk("Dumping the whole R_USB_EPT_DATA list\n");
+-
+- for (i = 0; i < 32; i++) {
+- __dump_ept_data(i);
+- }
++ unsigned int i, num = 0;
++ for (i = 0; i < USB_ROOT_HUB_PORTS; i++)
++ if (port_in_use(i))
++ if (++num == port)
++ return i;
++ return -1;
+ }
+-#ifdef USB_DEBUG_DESC
+-#define dump_in_desc(...) __dump_in_desc(...)
+-#define dump_sb_desc(...) __dump_sb_desc(...)
+-#define dump_ep_desc(...) __dump_ep_desc(...)
+-#else
+-#define dump_in_desc(...) do {} while (0)
+-#define dump_sb_desc(...) do {} while (0)
+-#define dump_ep_desc(...) do {} while (0)
+-#endif
+
+-#ifdef USB_DEBUG_URB
+-#define dump_urb(x) __dump_urb(x)
+-#else
+-#define dump_urb(x) do {} while (0)
++/* size of descriptors in slab cache */
++#ifndef MAX
++#define MAX(x, y) ((x) > (y) ? (x) : (y))
+ #endif
+
+-static void init_rx_buffers(void)
+-{
+- int i;
+
+- DBFENTER;
++/******************************************************************/
++/* Hardware Interrupt functions */
++/******************************************************************/
++
++/* Fast interrupt handler for HC */
++static irqreturn_t crisv10_hcd_top_irq(int irq, void *vcd)
++{
++ struct usb_hcd *hcd = vcd;
++ struct crisv10_irq_reg reg;
++ __u32 irq_mask;
++ unsigned long flags;
++
++ DBFENTER;
++
++ ASSERT(hcd != NULL);
++ reg.hcd = hcd;
++
++ /* Turn of other interrupts while handling these sensitive cases */
++ local_irq_save(flags);
++
++ /* Read out which interrupts that are flaged */
++ irq_mask = *R_USB_IRQ_MASK_READ;
++ reg.r_usb_irq_mask_read = irq_mask;
++
++ /* Reading R_USB_STATUS clears the ctl_status interrupt. Note that
++ R_USB_STATUS must be read before R_USB_EPID_ATTN since reading the latter
++ clears the ourun and perror fields of R_USB_STATUS. */
++ reg.r_usb_status = *R_USB_STATUS;
++
++ /* Reading R_USB_EPID_ATTN clears the iso_eof, bulk_eot and epid_attn
++ interrupts. */
++ reg.r_usb_epid_attn = *R_USB_EPID_ATTN;
++
++ /* Reading R_USB_RH_PORT_STATUS_1 and R_USB_RH_PORT_STATUS_2 clears the
++ port_status interrupt. */
++ reg.r_usb_rh_port_status_1 = *R_USB_RH_PORT_STATUS_1;
++ reg.r_usb_rh_port_status_2 = *R_USB_RH_PORT_STATUS_2;
++
++ /* Reading R_USB_FM_NUMBER clears the sof interrupt. */
++ /* Note: the lower 11 bits contain the actual frame number, sent with each
++ sof. */
++ reg.r_usb_fm_number = *R_USB_FM_NUMBER;
++
++ /* Interrupts are handled in order of priority. */
++ if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, port_status)) {
++ crisv10_hcd_port_status_irq(&reg);
++ }
++ if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, epid_attn)) {
++ crisv10_hcd_epid_attn_irq(&reg);
++ }
++ if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, ctl_status)) {
++ crisv10_hcd_ctl_status_irq(&reg);
++ }
++ if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, iso_eof)) {
++ crisv10_hcd_isoc_eof_irq(&reg);
++ }
++ if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, bulk_eot)) {
++ /* Update/restart the bulk start timer since obviously the channel is
++ running. */
++ mod_timer(&bulk_start_timer, jiffies + BULK_START_TIMER_INTERVAL);
++ /* Update/restart the bulk eot timer since we just received an bulk eot
++ interrupt. */
++ mod_timer(&bulk_eot_timer, jiffies + BULK_EOT_TIMER_INTERVAL);
++
++ /* Check for finished bulk transfers on epids */
++ check_finished_bulk_tx_epids(hcd, 0);
++ }
++ local_irq_restore(flags);
++
++ DBFEXIT;
++ return IRQ_HANDLED;
++}
++
++
++void crisv10_hcd_epid_attn_irq(struct crisv10_irq_reg *reg) {
++ struct usb_hcd *hcd = reg->hcd;
++ struct crisv10_urb_priv *urb_priv;
++ int epid;
++ DBFENTER;
++
++ for (epid = 0; epid < NBR_OF_EPIDS; epid++) {
++ if (test_bit(epid, (void *)&reg->r_usb_epid_attn)) {
++ struct urb *urb;
++ __u32 ept_data;
++ int error_code;
++
++ if (epid == DUMMY_EPID || epid == INVALID_EPID) {
++ /* We definitely don't care about these ones. Besides, they are
++ always disabled, so any possible disabling caused by the
++ epid attention interrupt is irrelevant. */
++ warn("Got epid_attn for INVALID_EPID or DUMMY_EPID (%d).", epid);
++ continue;
++ }
++
++ if(!epid_inuse(epid)) {
++ irq_err("Epid attention on epid:%d that isn't in use\n", epid);
++ printk("R_USB_STATUS: 0x%x\n", reg->r_usb_status);
++ debug_epid(epid);
++ continue;
++ }
++
++ /* Note that although there are separate R_USB_EPT_DATA and
++ R_USB_EPT_DATA_ISO registers, they are located at the same address and
++ are of the same size. In other words, this read should be ok for isoc
++ also. */
++ ept_data = etrax_epid_get(epid);
++ error_code = IO_EXTRACT(R_USB_EPT_DATA, error_code, ept_data);
++
++ /* Get the active URB for this epid. We blatantly assume
++ that only this URB could have caused the epid attention. */
++ urb = activeUrbList[epid];
++ if (urb == NULL) {
++ irq_err("Attention on epid:%d error:%d with no active URB.\n",
++ epid, error_code);
++ printk("R_USB_STATUS: 0x%x\n", reg->r_usb_status);
++ debug_epid(epid);
++ continue;
++ }
++
++ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ ASSERT(urb_priv);
++
++ /* Using IO_STATE_VALUE on R_USB_EPT_DATA should be ok for isoc also. */
++ if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA, error_code, no_error)) {
++
++ /* Isoc traffic doesn't have error_count_in/error_count_out. */
++ if ((usb_pipetype(urb->pipe) != PIPE_ISOCHRONOUS) &&
++ (IO_EXTRACT(R_USB_EPT_DATA, error_count_in, ept_data) == 3 ||
++ IO_EXTRACT(R_USB_EPT_DATA, error_count_out, ept_data) == 3)) {
++ /* Check if URB allready is marked for late-finish, we can get
++ several 3rd error for Intr traffic when a device is unplugged */
++ if(urb_priv->later_data == NULL) {
++ /* 3rd error. */
++ irq_warn("3rd error for epid:%d (%s %s) URB:0x%x[%d]\n", epid,
++ str_dir(urb->pipe), str_type(urb->pipe),
++ (unsigned int)urb, urb_priv->urb_num);
++
++ tc_finish_urb_later(hcd, urb, -EPROTO);
++ }
++
++ } else if (reg->r_usb_status & IO_MASK(R_USB_STATUS, perror)) {
++ irq_warn("Perror for epid:%d\n", epid);
++ printk("FM_NUMBER: %d\n", reg->r_usb_fm_number & 0x7ff);
++ printk("R_USB_STATUS: 0x%x\n", reg->r_usb_status);
++ __dump_urb(urb);
++ debug_epid(epid);
++
++ if (!(ept_data & IO_MASK(R_USB_EPT_DATA, valid))) {
++ /* invalid ep_id */
++ panic("Perror because of invalid epid."
++ " Deconfigured too early?");
++ } else {
++ /* past eof1, near eof, zout transfer, setup transfer */
++ /* Dump the urb and the relevant EP descriptor. */
++ panic("Something wrong with DMA descriptor contents."
++ " Too much traffic inserted?");
++ }
++ } else if (reg->r_usb_status & IO_MASK(R_USB_STATUS, ourun)) {
++ /* buffer ourun */
++ printk("FM_NUMBER: %d\n", reg->r_usb_fm_number & 0x7ff);
++ printk("R_USB_STATUS: 0x%x\n", reg->r_usb_status);
++ __dump_urb(urb);
++ debug_epid(epid);
+
+- for (i = 0; i < (NBR_OF_RX_DESC - 1); i++) {
+- RxDescList[i].sw_len = RX_DESC_BUF_SIZE;
+- RxDescList[i].command = 0;
+- RxDescList[i].next = virt_to_phys(&RxDescList[i + 1]);
+- RxDescList[i].buf = virt_to_phys(RxBuf + (i * RX_DESC_BUF_SIZE));
+- RxDescList[i].hw_len = 0;
+- RxDescList[i].status = 0;
+-
+- /* DMA IN cache bug. (struct etrax_dma_descr has the same layout as USB_IN_Desc
+- for the relevant fields.) */
+- prepare_rx_descriptor((struct etrax_dma_descr*)&RxDescList[i]);
++ panic("Buffer overrun/underrun for epid:%d. DMA too busy?", epid);
++ } else {
++ irq_warn("Attention on epid:%d (%s %s) with no error code\n", epid,
++ str_dir(urb->pipe), str_type(urb->pipe));
++ printk("R_USB_STATUS: 0x%x\n", reg->r_usb_status);
++ __dump_urb(urb);
++ debug_epid(epid);
++ }
+
++ } else if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA, error_code,
++ stall)) {
++ /* Not really a protocol error, just says that the endpoint gave
++ a stall response. Note that error_code cannot be stall for isoc. */
++ if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
++ panic("Isoc traffic cannot stall");
+ }
+
+- RxDescList[i].sw_len = RX_DESC_BUF_SIZE;
+- RxDescList[i].command = IO_STATE(USB_IN_command, eol, yes);
+- RxDescList[i].next = virt_to_phys(&RxDescList[0]);
+- RxDescList[i].buf = virt_to_phys(RxBuf + (i * RX_DESC_BUF_SIZE));
+- RxDescList[i].hw_len = 0;
+- RxDescList[i].status = 0;
++ tc_dbg("Stall for epid:%d (%s %s) URB:0x%x\n", epid,
++ str_dir(urb->pipe), str_type(urb->pipe), (unsigned int)urb);
++ tc_finish_urb(hcd, urb, -EPIPE);
++
++ } else if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA, error_code,
++ bus_error)) {
++ /* Two devices responded to a transaction request. Must be resolved
++ by software. FIXME: Reset ports? */
++ panic("Bus error for epid %d."
++ " Two devices responded to transaction request\n",
++ epid);
++
++ } else if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA, error_code,
++ buffer_error)) {
++ /* DMA overrun or underrun. */
++ irq_warn("Buffer overrun/underrun for epid:%d (%s %s)\n", epid,
++ str_dir(urb->pipe), str_type(urb->pipe));
++
++ /* It seems that error_code = buffer_error in
++ R_USB_EPT_DATA/R_USB_EPT_DATA_ISO and ourun = yes in R_USB_STATUS
++ are the same error. */
++ tc_finish_urb(hcd, urb, -EPROTO);
++ } else {
++ irq_warn("Unknown attention on epid:%d (%s %s)\n", epid,
++ str_dir(urb->pipe), str_type(urb->pipe));
++ dump_ept_data(epid);
++ }
++ }
++ }
++ DBFEXIT;
++}
++
++void crisv10_hcd_port_status_irq(struct crisv10_irq_reg *reg)
++{
++ __u16 port_reg[USB_ROOT_HUB_PORTS];
++ DBFENTER;
++ port_reg[0] = reg->r_usb_rh_port_status_1;
++ port_reg[1] = reg->r_usb_rh_port_status_2;
++ rh_port_status_change(port_reg);
++ DBFEXIT;
++}
++
++void crisv10_hcd_isoc_eof_irq(struct crisv10_irq_reg *reg)
++{
++ int epid;
++ struct urb *urb;
++ struct crisv10_urb_priv *urb_priv;
++
++ DBFENTER;
++
++ for (epid = 0; epid < NBR_OF_EPIDS - 1; epid++) {
++
++ /* Only check epids that are in use, is valid and has SB list */
++ if (!epid_inuse(epid) || epid == INVALID_EPID ||
++ TxIsocEPList[epid].sub == 0 || epid == DUMMY_EPID) {
++ /* Nothing here to see. */
++ continue;
++ }
++ ASSERT(epid_isoc(epid));
++
++ /* Get the active URB for this epid (if any). */
++ urb = activeUrbList[epid];
++ if (urb == 0) {
++ isoc_warn("Ignoring NULL urb for epid:%d\n", epid);
++ continue;
++ }
++ if(!epid_out_traffic(epid)) {
++ /* Sanity check. */
++ ASSERT(usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS);
++
++ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ ASSERT(urb_priv);
++
++ if (urb_priv->urb_state == NOT_STARTED) {
++ /* If ASAP is not set and urb->start_frame is the current frame,
++ start the transfer. */
++ if (!(urb->transfer_flags & URB_ISO_ASAP) &&
++ (urb->start_frame == (*R_USB_FM_NUMBER & 0x7ff))) {
++ /* EP should not be enabled if we're waiting for start_frame */
++ ASSERT((TxIsocEPList[epid].command &
++ IO_STATE(USB_EP_command, enable, yes)) == 0);
++
++ isoc_warn("Enabling isoc IN EP descr for epid %d\n", epid);
++ TxIsocEPList[epid].command |= IO_STATE(USB_EP_command, enable, yes);
++
++ /* This urb is now active. */
++ urb_priv->urb_state = STARTED;
++ continue;
++ }
++ }
++ }
++ }
++
++ DBFEXIT;
++}
++
++void crisv10_hcd_ctl_status_irq(struct crisv10_irq_reg *reg)
++{
++ struct crisv10_hcd* crisv10_hcd = hcd_to_crisv10_hcd(reg->hcd);
++
++ DBFENTER;
++ ASSERT(crisv10_hcd);
++
++ irq_dbg("ctr_status_irq, controller status: %s\n",
++ hcd_status_to_str(reg->r_usb_status));
++
++ /* FIXME: What should we do if we get ourun or perror? Dump the EP and SB
++ list for the corresponding epid? */
++ if (reg->r_usb_status & IO_MASK(R_USB_STATUS, ourun)) {
++ panic("USB controller got ourun.");
++ }
++ if (reg->r_usb_status & IO_MASK(R_USB_STATUS, perror)) {
++
++ /* Before, etrax_usb_do_intr_recover was called on this epid if it was
++ an interrupt pipe. I don't see how re-enabling all EP descriptors
++ will help if there was a programming error. */
++ panic("USB controller got perror.");
++ }
++
++ /* Keep track of USB Controller, if it's running or not */
++ if(reg->r_usb_status & IO_STATE(R_USB_STATUS, running, yes)) {
++ crisv10_hcd->running = 1;
++ } else {
++ crisv10_hcd->running = 0;
++ }
++
++ if (reg->r_usb_status & IO_MASK(R_USB_STATUS, device_mode)) {
++ /* We should never operate in device mode. */
++ panic("USB controller in device mode.");
++ }
++
++ /* Set the flag to avoid getting "Unlink after no-IRQ? Controller is probably
++ using the wrong IRQ" from hcd_unlink_urb() in drivers/usb/core/hcd.c */
++ set_bit(HCD_FLAG_SAW_IRQ, &reg->hcd->flags);
++
++ DBFEXIT;
++}
++
++
++/******************************************************************/
++/* Host Controller interface functions */
++/******************************************************************/
++
++static inline void crisv10_ready_wait(void) {
++ volatile int timeout = 10000;
++ /* Check the busy bit of USB controller in Etrax */
++ while((*R_USB_COMMAND & IO_MASK(R_USB_COMMAND, busy)) &&
++ (timeout-- > 0));
++ if(timeout == 0) {
++ warn("Timeout while waiting for USB controller to be idle\n");
++ }
++}
++
++/* reset host controller */
++static int crisv10_hcd_reset(struct usb_hcd *hcd)
++{
++ DBFENTER;
++ hcd_dbg(hcd, "reset\n");
++
++
++ /* Reset the USB interface. */
++ /*
++ *R_USB_COMMAND =
++ IO_STATE(R_USB_COMMAND, port_sel, nop) |
++ IO_STATE(R_USB_COMMAND, port_cmd, reset) |
++ IO_STATE(R_USB_COMMAND, ctrl_cmd, reset);
++ nop();
++ */
++ DBFEXIT;
++ return 0;
++}
++
++/* start host controller */
++static int crisv10_hcd_start(struct usb_hcd *hcd)
++{
++ DBFENTER;
++ hcd_dbg(hcd, "start\n");
++
++ crisv10_ready_wait();
++
++ /* Start processing of USB traffic. */
++ *R_USB_COMMAND =
++ IO_STATE(R_USB_COMMAND, port_sel, nop) |
++ IO_STATE(R_USB_COMMAND, port_cmd, reset) |
++ IO_STATE(R_USB_COMMAND, ctrl_cmd, host_run);
++
++ nop();
++
++ hcd->state = HC_STATE_RUNNING;
++
++ DBFEXIT;
++ return 0;
++}
++
++/* stop host controller */
++static void crisv10_hcd_stop(struct usb_hcd *hcd)
++{
++ DBFENTER;
++ hcd_dbg(hcd, "stop\n");
++ crisv10_hcd_reset(hcd);
++ DBFEXIT;
++}
++
++/* return the current frame number */
++static int crisv10_hcd_get_frame(struct usb_hcd *hcd)
++{
++ DBFENTER;
++ DBFEXIT;
++ return (*R_USB_FM_NUMBER & 0x7ff);
++}
++
++#ifdef CONFIG_USB_OTG
++
++static int crisv10_hcd_start_port_reset(struct usb_hcd *hcd, unsigned port)
++{
++ return 0; /* no-op for now */
++}
++
++#endif /* CONFIG_USB_OTG */
++
++
++/******************************************************************/
++/* Root Hub functions */
++/******************************************************************/
++
++/* root hub status */
++static const struct usb_hub_status rh_hub_status =
++ {
++ .wHubStatus = 0,
++ .wHubChange = 0,
++ };
++
++/* root hub descriptor */
++static const u8 rh_hub_descr[] =
++ {
++ 0x09, /* bDescLength */
++ 0x29, /* bDescriptorType */
++ USB_ROOT_HUB_PORTS, /* bNbrPorts */
++ 0x00, /* wHubCharacteristics */
++ 0x00,
++ 0x01, /* bPwrOn2pwrGood */
++ 0x00, /* bHubContrCurrent */
++ 0x00, /* DeviceRemovable */
++ 0xff /* PortPwrCtrlMask */
++ };
++
++/* Actual holder of root hub status*/
++struct crisv10_rh rh;
++
++/* Initialize root hub data structures (called from dvdrv_hcd_probe()) */
++int rh_init(void) {
++ int i;
++ /* Reset port status flags */
++ for (i = 0; i < USB_ROOT_HUB_PORTS; i++) {
++ rh.wPortChange[i] = 0;
++ rh.wPortStatusPrev[i] = 0;
++ }
++ return 0;
++}
++
++#define RH_FEAT_MASK ((1<<USB_PORT_FEAT_CONNECTION)|\
++ (1<<USB_PORT_FEAT_ENABLE)|\
++ (1<<USB_PORT_FEAT_SUSPEND)|\
++ (1<<USB_PORT_FEAT_RESET))
++
++/* Handle port status change interrupt (called from bottom part interrupt) */
++void rh_port_status_change(__u16 port_reg[]) {
++ int i;
++ __u16 wChange;
++
++ for(i = 0; i < USB_ROOT_HUB_PORTS; i++) {
++ /* Xor out changes since last read, masked for important flags */
++ wChange = (port_reg[i] & RH_FEAT_MASK) ^ rh.wPortStatusPrev[i];
++ /* Or changes together with (if any) saved changes */
++ rh.wPortChange[i] |= wChange;
++ /* Save new status */
++ rh.wPortStatusPrev[i] = port_reg[i];
++
++ if(wChange) {
++ rh_dbg("Interrupt port_status change port%d: %s Current-status:%s\n", i+1,
++ port_status_to_str(wChange),
++ port_status_to_str(port_reg[i]));
++ }
++ }
++}
++
++/* Construct port status change bitmap for the root hub */
++static int rh_status_data_request(struct usb_hcd *hcd, char *buf)
++{
++ struct crisv10_hcd* crisv10_hcd = hcd_to_crisv10_hcd(hcd);
++ unsigned int i;
++
++ DBFENTER;
++ /*
++ * corresponds to hub status change EP (USB 2.0 spec section 11.13.4)
++ * return bitmap indicating ports with status change
++ */
++ *buf = 0;
++ spin_lock(&crisv10_hcd->lock);
++ for (i = 1; i <= crisv10_hcd->num_ports; i++) {
++ if (rh.wPortChange[map_port(i)]) {
++ *buf |= (1 << i);
++ rh_dbg("rh_status_data_request, change on port %d: %s Current Status: %s\n", i,
++ port_status_to_str(rh.wPortChange[map_port(i)]),
++ port_status_to_str(rh.wPortStatusPrev[map_port(i)]));
++ }
++ }
++ spin_unlock(&crisv10_hcd->lock);
++ DBFEXIT;
++ return *buf == 0 ? 0 : 1;
++}
++
++/* Handle a control request for the root hub (called from hcd_driver) */
++static int rh_control_request(struct usb_hcd *hcd,
++ u16 typeReq,
++ u16 wValue,
++ u16 wIndex,
++ char *buf,
++ u16 wLength) {
++
++ struct crisv10_hcd *crisv10_hcd = hcd_to_crisv10_hcd(hcd);
++ int retval = 0;
++ int len;
++ DBFENTER;
++
++ switch (typeReq) {
++ case GetHubDescriptor:
++ rh_dbg("GetHubDescriptor\n");
++ len = min_t(unsigned int, sizeof rh_hub_descr, wLength);
++ memcpy(buf, rh_hub_descr, len);
++ buf[2] = crisv10_hcd->num_ports;
++ break;
++ case GetHubStatus:
++ rh_dbg("GetHubStatus\n");
++ len = min_t(unsigned int, sizeof rh_hub_status, wLength);
++ memcpy(buf, &rh_hub_status, len);
++ break;
++ case GetPortStatus:
++ if (!wIndex || wIndex > crisv10_hcd->num_ports)
++ goto error;
++ rh_dbg("GetportStatus, port:%d change:%s status:%s\n", wIndex,
++ port_status_to_str(rh.wPortChange[map_port(wIndex)]),
++ port_status_to_str(rh.wPortStatusPrev[map_port(wIndex)]));
++ *(u16 *) buf = cpu_to_le16(rh.wPortStatusPrev[map_port(wIndex)]);
++ *(u16 *) (buf + 2) = cpu_to_le16(rh.wPortChange[map_port(wIndex)]);
++ break;
++ case SetHubFeature:
++ rh_dbg("SetHubFeature\n");
++ case ClearHubFeature:
++ rh_dbg("ClearHubFeature\n");
++ switch (wValue) {
++ case C_HUB_OVER_CURRENT:
++ case C_HUB_LOCAL_POWER:
++ rh_warn("Not implemented hub request:%d \n", typeReq);
++ /* not implemented */
++ break;
++ default:
++ goto error;
++ }
++ break;
++ case SetPortFeature:
++ if (!wIndex || wIndex > crisv10_hcd->num_ports)
++ goto error;
++ if(rh_set_port_feature(map_port(wIndex), wValue))
++ goto error;
++ break;
++ case ClearPortFeature:
++ if (!wIndex || wIndex > crisv10_hcd->num_ports)
++ goto error;
++ if(rh_clear_port_feature(map_port(wIndex), wValue))
++ goto error;
++ break;
++ default:
++ rh_warn("Unknown hub request: %d\n", typeReq);
++ error:
++ retval = -EPIPE;
++ }
++ DBFEXIT;
++ return retval;
++}
++
++int rh_set_port_feature(__u8 bPort, __u16 wFeature) {
++ __u8 bUsbCommand = 0;
++ switch(wFeature) {
++ case USB_PORT_FEAT_RESET:
++ rh_dbg("SetPortFeature: reset\n");
++ bUsbCommand |= IO_STATE(R_USB_COMMAND, port_cmd, reset);
++ goto set;
++ break;
++ case USB_PORT_FEAT_SUSPEND:
++ rh_dbg("SetPortFeature: suspend\n");
++ bUsbCommand |= IO_STATE(R_USB_COMMAND, port_cmd, suspend);
++ goto set;
++ break;
++ case USB_PORT_FEAT_POWER:
++ rh_dbg("SetPortFeature: power\n");
++ break;
++ case USB_PORT_FEAT_C_CONNECTION:
++ rh_dbg("SetPortFeature: c_connection\n");
++ break;
++ case USB_PORT_FEAT_C_RESET:
++ rh_dbg("SetPortFeature: c_reset\n");
++ break;
++ case USB_PORT_FEAT_C_OVER_CURRENT:
++ rh_dbg("SetPortFeature: c_over_current\n");
++ break;
++
++ set:
++ /* Select which port via the port_sel field */
++ bUsbCommand |= IO_FIELD(R_USB_COMMAND, port_sel, bPort+1);
++
++ /* Make sure the controller isn't busy. */
++ crisv10_ready_wait();
++ /* Send out the actual command to the USB controller */
++ *R_USB_COMMAND = bUsbCommand;
++
++ /* If port reset then also bring USB controller into running state */
++ if(wFeature == USB_PORT_FEAT_RESET) {
++ /* Wait a while for controller to first become started after port reset */
++ udelay(12000); /* 12ms blocking wait */
++
++ /* Make sure the controller isn't busy. */
++ crisv10_ready_wait();
++
++ /* If all enabled ports were disabled the host controller goes down into
++ started mode, so we need to bring it back into the running state.
++ (This is safe even if it's already in the running state.) */
++ *R_USB_COMMAND =
++ IO_STATE(R_USB_COMMAND, port_sel, nop) |
++ IO_STATE(R_USB_COMMAND, port_cmd, reset) |
++ IO_STATE(R_USB_COMMAND, ctrl_cmd, host_run);
++ }
++
++ break;
++ default:
++ rh_dbg("SetPortFeature: unknown feature\n");
++ return -1;
++ }
++ return 0;
++}
++
++int rh_clear_port_feature(__u8 bPort, __u16 wFeature) {
++ switch(wFeature) {
++ case USB_PORT_FEAT_ENABLE:
++ rh_dbg("ClearPortFeature: enable\n");
++ rh_disable_port(bPort);
++ break;
++ case USB_PORT_FEAT_SUSPEND:
++ rh_dbg("ClearPortFeature: suspend\n");
++ break;
++ case USB_PORT_FEAT_POWER:
++ rh_dbg("ClearPortFeature: power\n");
++ break;
++
++ case USB_PORT_FEAT_C_ENABLE:
++ rh_dbg("ClearPortFeature: c_enable\n");
++ goto clear;
++ case USB_PORT_FEAT_C_SUSPEND:
++ rh_dbg("ClearPortFeature: c_suspend\n");
++ goto clear;
++ case USB_PORT_FEAT_C_CONNECTION:
++ rh_dbg("ClearPortFeature: c_connection\n");
++ goto clear;
++ case USB_PORT_FEAT_C_OVER_CURRENT:
++ rh_dbg("ClearPortFeature: c_over_current\n");
++ goto clear;
++ case USB_PORT_FEAT_C_RESET:
++ rh_dbg("ClearPortFeature: c_reset\n");
++ goto clear;
++ clear:
++ rh.wPortChange[bPort] &= ~(1 << (wFeature - 16));
++ break;
++ default:
++ rh_dbg("ClearPortFeature: unknown feature\n");
++ return -1;
++ }
++ return 0;
++}
++
++
++#ifdef CONFIG_PM
++/* Handle a suspend request for the root hub (called from hcd_driver) */
++static int rh_suspend_request(struct usb_hcd *hcd)
++{
++ return 0; /* no-op for now */
++}
++
++/* Handle a resume request for the root hub (called from hcd_driver) */
++static int rh_resume_request(struct usb_hcd *hcd)
++{
++ return 0; /* no-op for now */
++}
++#endif /* CONFIG_PM */
++
++
++
++/* Wrapper function for workaround port disable registers in USB controller */
++static void rh_disable_port(unsigned int port) {
++ volatile int timeout = 10000;
++ volatile char* usb_portx_disable;
++ switch(port) {
++ case 0:
++ usb_portx_disable = R_USB_PORT1_DISABLE;
++ break;
++ case 1:
++ usb_portx_disable = R_USB_PORT2_DISABLE;
++ break;
++ default:
++ /* Invalid port index */
++ return;
++ }
++ /* Set disable flag in special register */
++ *usb_portx_disable = IO_STATE(R_USB_PORT1_DISABLE, disable, yes);
++ /* Wait until not enabled anymore */
++ while((rh.wPortStatusPrev[port] &
++ IO_STATE(R_USB_RH_PORT_STATUS_1, enabled, yes)) &&
++ (timeout-- > 0));
++ if(timeout == 0) {
++ warn("Timeout while waiting for port %d to become disabled\n", port);
++ }
++ /* clear disable flag in special register */
++ *usb_portx_disable = IO_STATE(R_USB_PORT1_DISABLE, disable, no);
++ rh_info("Physical port %d disabled\n", port+1);
++}
++
++
++/******************************************************************/
++/* Transfer Controller (TC) functions */
++/******************************************************************/
++
++/* FIXME: Should RX_BUF_SIZE be a config option, or maybe we should adjust it
++ dynamically?
++ To adjust it dynamically we would have to get an interrupt when we reach
++ the end of the rx descriptor list, or when we get close to the end, and
++ then allocate more descriptors. */
++#define NBR_OF_RX_DESC 512
++#define RX_DESC_BUF_SIZE 1024
++#define RX_BUF_SIZE (NBR_OF_RX_DESC * RX_DESC_BUF_SIZE)
+
+- myNextRxDesc = &RxDescList[0];
+- myLastRxDesc = &RxDescList[NBR_OF_RX_DESC - 1];
+- myPrevRxDesc = &RxDescList[NBR_OF_RX_DESC - 1];
+
+- *R_DMA_CH9_FIRST = virt_to_phys(myNextRxDesc);
+- *R_DMA_CH9_CMD = IO_STATE(R_DMA_CH9_CMD, cmd, start);
++/* Local variables for Transfer Controller */
++/* --------------------------------------- */
+
+- DBFEXIT;
+-}
++/* This is a circular (double-linked) list of the active urbs for each epid.
++ The head is never removed, and new urbs are linked onto the list as
++ urb_entry_t elements. Don't reference urb_list directly; use the wrapper
++ functions instead (which includes spin_locks) */
++static struct list_head urb_list[NBR_OF_EPIDS];
+
+-static void init_tx_bulk_ep(void)
+-{
+- int i;
++/* Read about the need and usage of this lock in submit_ctrl_urb. */
++/* Lock for URB lists for each EPID */
++static spinlock_t urb_list_lock;
+
+- DBFENTER;
++/* Lock for EPID array register (R_USB_EPT_x) in Etrax */
++static spinlock_t etrax_epid_lock;
+
+- for (i = 0; i < (NBR_OF_EPIDS - 1); i++) {
+- CHECK_ALIGN(&TxBulkEPList[i]);
+- TxBulkEPList[i].hw_len = 0;
+- TxBulkEPList[i].command = IO_FIELD(USB_EP_command, epid, i);
+- TxBulkEPList[i].sub = 0;
+- TxBulkEPList[i].next = virt_to_phys(&TxBulkEPList[i + 1]);
+-
+- /* Initiate two EPs, disabled and with the eol flag set. No need for any
+- preserved epid. */
+-
+- /* The first one has the intr flag set so we get an interrupt when the DMA
+- channel is about to become disabled. */
+- CHECK_ALIGN(&TxBulkDummyEPList[i][0]);
+- TxBulkDummyEPList[i][0].hw_len = 0;
+- TxBulkDummyEPList[i][0].command = (IO_FIELD(USB_EP_command, epid, DUMMY_EPID) |
+- IO_STATE(USB_EP_command, eol, yes) |
+- IO_STATE(USB_EP_command, intr, yes));
+- TxBulkDummyEPList[i][0].sub = 0;
+- TxBulkDummyEPList[i][0].next = virt_to_phys(&TxBulkDummyEPList[i][1]);
+-
+- /* The second one. */
+- CHECK_ALIGN(&TxBulkDummyEPList[i][1]);
+- TxBulkDummyEPList[i][1].hw_len = 0;
+- TxBulkDummyEPList[i][1].command = (IO_FIELD(USB_EP_command, epid, DUMMY_EPID) |
+- IO_STATE(USB_EP_command, eol, yes));
+- TxBulkDummyEPList[i][1].sub = 0;
+- /* The last dummy's next pointer is the same as the current EP's next pointer. */
+- TxBulkDummyEPList[i][1].next = virt_to_phys(&TxBulkEPList[i + 1]);
+- }
++/* Lock for dma8 sub0 handling */
++static spinlock_t etrax_dma8_sub0_lock;
+
+- /* Configure the last one. */
+- CHECK_ALIGN(&TxBulkEPList[i]);
+- TxBulkEPList[i].hw_len = 0;
+- TxBulkEPList[i].command = (IO_STATE(USB_EP_command, eol, yes) |
+- IO_FIELD(USB_EP_command, epid, i));
+- TxBulkEPList[i].sub = 0;
+- TxBulkEPList[i].next = virt_to_phys(&TxBulkEPList[0]);
+-
+- /* No need configuring dummy EPs for the last one as it will never be used for
+- bulk traffic (i == INVALD_EPID at this point). */
+-
+- /* Set up to start on the last EP so we will enable it when inserting traffic
+- for the first time (imitating the situation where the DMA has stopped
+- because there was no more traffic). */
+- *R_DMA_CH8_SUB0_EP = virt_to_phys(&TxBulkEPList[i]);
+- /* No point in starting the bulk channel yet.
+- *R_DMA_CH8_SUB0_CMD = IO_STATE(R_DMA_CH8_SUB0_CMD, cmd, start); */
+- DBFEXIT;
+-}
++/* DMA IN cache bug. Align the DMA IN buffers to 32 bytes, i.e. a cache line.
++ Since RX_DESC_BUF_SIZE is 1024 is a multiple of 32, all rx buffers will be
++ cache aligned. */
++static volatile unsigned char RxBuf[RX_BUF_SIZE] __attribute__ ((aligned (32)));
++static volatile struct USB_IN_Desc RxDescList[NBR_OF_RX_DESC] __attribute__ ((aligned (4)));
+
+-static void init_tx_ctrl_ep(void)
+-{
+- int i;
++/* Pointers into RxDescList. */
++static volatile struct USB_IN_Desc *myNextRxDesc;
++static volatile struct USB_IN_Desc *myLastRxDesc;
+
+- DBFENTER;
++/* A zout transfer makes a memory access at the address of its buf pointer,
++ which means that setting this buf pointer to 0 will cause an access to the
++ flash. In addition to this, setting sw_len to 0 results in a 16/32 bytes
++ (depending on DMA burst size) transfer.
++ Instead, we set it to 1, and point it to this buffer. */
++static int zout_buffer[4] __attribute__ ((aligned (4)));
+
+- for (i = 0; i < (NBR_OF_EPIDS - 1); i++) {
+- CHECK_ALIGN(&TxCtrlEPList[i]);
+- TxCtrlEPList[i].hw_len = 0;
+- TxCtrlEPList[i].command = IO_FIELD(USB_EP_command, epid, i);
+- TxCtrlEPList[i].sub = 0;
+- TxCtrlEPList[i].next = virt_to_phys(&TxCtrlEPList[i + 1]);
+- }
++/* Cache for allocating new EP and SB descriptors. */
++static kmem_cache_t *usb_desc_cache;
+
+- CHECK_ALIGN(&TxCtrlEPList[i]);
+- TxCtrlEPList[i].hw_len = 0;
+- TxCtrlEPList[i].command = (IO_STATE(USB_EP_command, eol, yes) |
+- IO_FIELD(USB_EP_command, epid, i));
++/* Cache for the data allocated in the isoc descr top half. */
++static kmem_cache_t *isoc_compl_cache;
+
+- TxCtrlEPList[i].sub = 0;
+- TxCtrlEPList[i].next = virt_to_phys(&TxCtrlEPList[0]);
++/* Cache for the data allocated when delayed finishing of URBs */
++static kmem_cache_t *later_data_cache;
+
+- *R_DMA_CH8_SUB1_EP = virt_to_phys(&TxCtrlEPList[0]);
+- *R_DMA_CH8_SUB1_CMD = IO_STATE(R_DMA_CH8_SUB1_CMD, cmd, start);
+
+- DBFEXIT;
++/* Counter to keep track of how many Isoc EP we have sat up. Used to enable
++ and disable iso_eof interrupt. We only need these interrupts when we have
++ Isoc data endpoints (consumes CPU cycles).
++ FIXME: This could be more fine granular, so this interrupt is only enabled
++ when we have a In Isoc URB not URB_ISO_ASAP flaged queued. */
++static int isoc_epid_counter;
++
++/* Protecting wrapper functions for R_USB_EPT_x */
++/* -------------------------------------------- */
++static inline void etrax_epid_set(__u8 index, __u32 data) {
++ unsigned long flags;
++ spin_lock_irqsave(&etrax_epid_lock, flags);
++ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, index);
++ nop();
++ *R_USB_EPT_DATA = data;
++ spin_unlock_irqrestore(&etrax_epid_lock, flags);
++}
++
++static inline void etrax_epid_clear_error(__u8 index) {
++ unsigned long flags;
++ spin_lock_irqsave(&etrax_epid_lock, flags);
++ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, index);
++ nop();
++ *R_USB_EPT_DATA &=
++ ~(IO_MASK(R_USB_EPT_DATA, error_count_in) |
++ IO_MASK(R_USB_EPT_DATA, error_count_out) |
++ IO_MASK(R_USB_EPT_DATA, error_code));
++ spin_unlock_irqrestore(&etrax_epid_lock, flags);
++}
++
++static inline void etrax_epid_set_toggle(__u8 index, __u8 dirout,
++ __u8 toggle) {
++ unsigned long flags;
++ spin_lock_irqsave(&etrax_epid_lock, flags);
++ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, index);
++ nop();
++ if(dirout) {
++ *R_USB_EPT_DATA &= ~IO_MASK(R_USB_EPT_DATA, t_out);
++ *R_USB_EPT_DATA |= IO_FIELD(R_USB_EPT_DATA, t_out, toggle);
++ } else {
++ *R_USB_EPT_DATA &= ~IO_MASK(R_USB_EPT_DATA, t_in);
++ *R_USB_EPT_DATA |= IO_FIELD(R_USB_EPT_DATA, t_in, toggle);
++ }
++ spin_unlock_irqrestore(&etrax_epid_lock, flags);
++}
++
++static inline __u8 etrax_epid_get_toggle(__u8 index, __u8 dirout) {
++ unsigned long flags;
++ __u8 toggle;
++ spin_lock_irqsave(&etrax_epid_lock, flags);
++ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, index);
++ nop();
++ if (dirout) {
++ toggle = IO_EXTRACT(R_USB_EPT_DATA, t_out, *R_USB_EPT_DATA);
++ } else {
++ toggle = IO_EXTRACT(R_USB_EPT_DATA, t_in, *R_USB_EPT_DATA);
++ }
++ spin_unlock_irqrestore(&etrax_epid_lock, flags);
++ return toggle;
++}
++
++
++static inline __u32 etrax_epid_get(__u8 index) {
++ unsigned long flags;
++ __u32 data;
++ spin_lock_irqsave(&etrax_epid_lock, flags);
++ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, index);
++ nop();
++ data = *R_USB_EPT_DATA;
++ spin_unlock_irqrestore(&etrax_epid_lock, flags);
++ return data;
++}
++
++
++
++
++/* Main functions for Transfer Controller */
++/* -------------------------------------- */
++
++/* Init structs, memories and lists used by Transfer Controller */
++int tc_init(struct usb_hcd *hcd) {
++ int i;
++ /* Clear software state info for all epids */
++ memset(epid_state, 0, sizeof(struct etrax_epid) * NBR_OF_EPIDS);
++
++ /* Set Invalid and Dummy as being in use and disabled */
++ epid_state[INVALID_EPID].inuse = 1;
++ epid_state[DUMMY_EPID].inuse = 1;
++ epid_state[INVALID_EPID].disabled = 1;
++ epid_state[DUMMY_EPID].disabled = 1;
++
++ /* Clear counter for how many Isoc epids we have sat up */
++ isoc_epid_counter = 0;
++
++ /* Initialize the urb list by initiating a head for each list.
++ Also reset list hodling active URB for each epid */
++ for (i = 0; i < NBR_OF_EPIDS; i++) {
++ INIT_LIST_HEAD(&urb_list[i]);
++ activeUrbList[i] = NULL;
++ }
++
++ /* Init lock for URB lists */
++ spin_lock_init(&urb_list_lock);
++ /* Init lock for Etrax R_USB_EPT register */
++ spin_lock_init(&etrax_epid_lock);
++ /* Init lock for Etrax dma8 sub0 handling */
++ spin_lock_init(&etrax_dma8_sub0_lock);
++
++ /* We use kmem_cache_* to make sure that all DMA desc. are dword aligned */
++
++ /* Note that we specify sizeof(struct USB_EP_Desc) as the size, but also
++ allocate SB descriptors from this cache. This is ok since
++ sizeof(struct USB_EP_Desc) == sizeof(struct USB_SB_Desc). */
++ usb_desc_cache = kmem_cache_create("usb_desc_cache",
++ sizeof(struct USB_EP_Desc), 0,
++ SLAB_HWCACHE_ALIGN, 0, 0);
++ if(usb_desc_cache == NULL) {
++ return -ENOMEM;
++ }
++
++ /* Create slab cache for speedy allocation of memory for isoc bottom-half
++ interrupt handling */
++ isoc_compl_cache =
++ kmem_cache_create("isoc_compl_cache",
++ sizeof(struct crisv10_isoc_complete_data),
++ 0, SLAB_HWCACHE_ALIGN, 0, 0);
++ if(isoc_compl_cache == NULL) {
++ return -ENOMEM;
++ }
++
++ /* Create slab cache for speedy allocation of memory for later URB finish
++ struct */
++ later_data_cache =
++ kmem_cache_create("later_data_cache",
++ sizeof(struct urb_later_data),
++ 0, SLAB_HWCACHE_ALIGN, 0, 0);
++ if(later_data_cache == NULL) {
++ return -ENOMEM;
++ }
++
++
++ /* Initiate the bulk start timer. */
++ init_timer(&bulk_start_timer);
++ bulk_start_timer.expires = jiffies + BULK_START_TIMER_INTERVAL;
++ bulk_start_timer.function = tc_bulk_start_timer_func;
++ add_timer(&bulk_start_timer);
++
++
++ /* Initiate the bulk eot timer. */
++ init_timer(&bulk_eot_timer);
++ bulk_eot_timer.expires = jiffies + BULK_EOT_TIMER_INTERVAL;
++ bulk_eot_timer.function = tc_bulk_eot_timer_func;
++ bulk_eot_timer.data = (unsigned long)hcd;
++ add_timer(&bulk_eot_timer);
++
++ return 0;
++}
++
++/* Uninitialize all resources used by Transfer Controller */
++void tc_destroy(void) {
++
++ /* Destroy all slab cache */
++ kmem_cache_destroy(usb_desc_cache);
++ kmem_cache_destroy(isoc_compl_cache);
++ kmem_cache_destroy(later_data_cache);
++
++ /* Remove timers */
++ del_timer(&bulk_start_timer);
++ del_timer(&bulk_eot_timer);
++}
++
++static void restart_dma8_sub0(void) {
++ unsigned long flags;
++ spin_lock_irqsave(&etrax_dma8_sub0_lock, flags);
++ /* Verify that the dma is not running */
++ if ((*R_DMA_CH8_SUB0_CMD & IO_MASK(R_DMA_CH8_SUB0_CMD, cmd)) == 0) {
++ struct USB_EP_Desc *ep = (struct USB_EP_Desc *)phys_to_virt(*R_DMA_CH8_SUB0_EP);
++ while (DUMMY_EPID == IO_EXTRACT(USB_EP_command, epid, ep->command)) {
++ ep = (struct USB_EP_Desc *)phys_to_virt(ep->next);
++ }
++ /* Advance the DMA to the next EP descriptor that is not a DUMMY_EPID.
++ * ep->next is already a physical address; no need for a virt_to_phys. */
++ *R_DMA_CH8_SUB0_EP = ep->next;
++ /* Restart the DMA */
++ *R_DMA_CH8_SUB0_CMD = IO_STATE(R_DMA_CH8_SUB0_CMD, cmd, start);
++ }
++ spin_unlock_irqrestore(&etrax_dma8_sub0_lock, flags);
++}
++
++/* queue an URB with the transfer controller (called from hcd_driver) */
++static int tc_urb_enqueue(struct usb_hcd *hcd,
++ struct usb_host_endpoint *ep,
++ struct urb *urb,
++ gfp_t mem_flags) {
++ int epid;
++ int retval;
++ int bustime = 0;
++ int maxpacket;
++ unsigned long flags;
++ struct crisv10_urb_priv *urb_priv;
++ struct crisv10_hcd* crisv10_hcd = hcd_to_crisv10_hcd(hcd);
++ DBFENTER;
++
++ if(!(crisv10_hcd->running)) {
++ /* The USB Controller is not running, probably because no device is
++ attached. No idea to enqueue URBs then */
++ tc_warn("Rejected enqueueing of URB:0x%x because no dev attached\n",
++ (unsigned int)urb);
++ return -ENOENT;
++ }
++
++ maxpacket = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe));
++ /* Special case check for In Isoc transfers. Specification states that each
++ In Isoc transfer consists of one packet and therefore it should fit into
++ the transfer-buffer of an URB.
++ We do the check here to be sure (an invalid scenario can be produced with
++ parameters to the usbtest suite) */
++ if(usb_pipeisoc(urb->pipe) && usb_pipein(urb->pipe) &&
++ (urb->transfer_buffer_length < maxpacket)) {
++ tc_err("Submit In Isoc URB with buffer length:%d to pipe with maxpacketlen: %d\n", urb->transfer_buffer_length, maxpacket);
++ return -EMSGSIZE;
++ }
++
++ /* Check if there is enough bandwidth for periodic transfer */
++ if(usb_pipeint(urb->pipe) || usb_pipeisoc(urb->pipe)) {
++ /* only check (and later claim) if not already claimed */
++ if (urb->bandwidth == 0) {
++ bustime = usb_check_bandwidth(urb->dev, urb);
++ if (bustime < 0) {
++ tc_err("Not enough periodic bandwidth\n");
++ return -ENOSPC;
++ }
++ }
++ }
++
++ /* Check if there is a epid for URBs destination, if not this function
++ set up one. */
++ epid = tc_setup_epid(ep, urb, mem_flags);
++ if (epid < 0) {
++ tc_err("Failed setup epid:%d for URB:0x%x\n", epid, (unsigned int)urb);
++ DBFEXIT;
++ return -ENOMEM;
++ }
++
++ if(urb == activeUrbList[epid]) {
++ tc_err("Resubmition of allready active URB:0x%x\n", (unsigned int)urb);
++ return -ENXIO;
++ }
++
++ if(urb_list_entry(urb, epid)) {
++ tc_err("Resubmition of allready queued URB:0x%x\n", (unsigned int)urb);
++ return -ENXIO;
++ }
++
++ /* If we actively have flaged endpoint as disabled then refuse submition */
++ if(epid_state[epid].disabled) {
++ return -ENOENT;
++ }
++
++ /* Allocate and init HC-private data for URB */
++ if(urb_priv_create(hcd, urb, epid, mem_flags) != 0) {
++ DBFEXIT;
++ return -ENOMEM;
++ }
++ urb_priv = urb->hcpriv;
++
++ tc_dbg("Enqueue URB:0x%x[%d] epid:%d (%s) bufflen:%d\n",
++ (unsigned int)urb, urb_priv->urb_num, epid,
++ pipe_to_str(urb->pipe), urb->transfer_buffer_length);
++
++ /* Create and link SBs required for this URB */
++ retval = create_sb_for_urb(urb, mem_flags);
++ if(retval != 0) {
++ tc_err("Failed to create SBs for URB:0x%x[%d]\n", (unsigned int)urb,
++ urb_priv->urb_num);
++ urb_priv_free(hcd, urb);
++ DBFEXIT;
++ return retval;
++ }
++
++ /* Init intr EP pool if this URB is a INTR transfer. This pool is later
++ used when inserting EPs in the TxIntrEPList. We do the alloc here
++ so we can't run out of memory later */
++ if(usb_pipeint(urb->pipe)) {
++ retval = init_intr_urb(urb, mem_flags);
++ if(retval != 0) {
++ tc_warn("Failed to init Intr URB\n");
++ urb_priv_free(hcd, urb);
++ DBFEXIT;
++ return retval;
++ }
++ }
++
++ /* Disable other access when inserting USB */
++ local_irq_save(flags);
++
++ /* Claim bandwidth, if needed */
++ if(bustime) {
++ usb_claim_bandwidth(urb->dev, urb, bustime, 0);
++ }
++
++ /* Add URB to EP queue */
++ urb_list_add(urb, epid, mem_flags);
++
++ if(usb_pipeisoc(urb->pipe)) {
++ /* Special processing of Isoc URBs. */
++ tc_dma_process_isoc_urb(urb);
++ } else {
++ /* Process EP queue for rest of the URB types (Bulk, Ctrl, Intr) */
++ tc_dma_process_queue(epid);
++ }
++
++ local_irq_restore(flags);
++
++ DBFEXIT;
++ return 0;
++}
++
++/* remove an URB from the transfer controller queues (called from hcd_driver)*/
++static int tc_urb_dequeue(struct usb_hcd *hcd, struct urb *urb) {
++ struct crisv10_urb_priv *urb_priv;
++ unsigned long flags;
++ int epid;
++
++ DBFENTER;
++ /* Disable interrupts here since a descriptor interrupt for the isoc epid
++ will modify the sb list. This could possibly be done more granular, but
++ urb_dequeue should not be used frequently anyway.
++ */
++ local_irq_save(flags);
++
++ urb_priv = urb->hcpriv;
++
++ if (!urb_priv) {
++ /* This happens if a device driver calls unlink on an urb that
++ was never submitted (lazy driver) or if the urb was completed
++ while dequeue was being called. */
++ tc_warn("Dequeing of not enqueued URB:0x%x\n", (unsigned int)urb);
++ local_irq_restore(flags);
++ return 0;
++ }
++ epid = urb_priv->epid;
++
++ tc_warn("Dequeing %s URB:0x%x[%d] (%s %s epid:%d) status:%d %s\n",
++ (urb == activeUrbList[epid]) ? "active" : "queued",
++ (unsigned int)urb, urb_priv->urb_num, str_dir(urb->pipe),
++ str_type(urb->pipe), epid, urb->status,
++ (urb_priv->later_data) ? "later-sched" : "");
++
++ /* For Bulk, Ctrl and Intr are only one URB active at a time. So any URB
++ that isn't active can be dequeued by just removing it from the queue */
++ if(usb_pipebulk(urb->pipe) || usb_pipecontrol(urb->pipe) ||
++ usb_pipeint(urb->pipe)) {
++
++ /* Check if URB haven't gone further than the queue */
++ if(urb != activeUrbList[epid]) {
++ ASSERT(urb_priv->later_data == NULL);
++ tc_warn("Dequeing URB:0x%x[%d] (%s %s epid:%d) from queue"
++ " (not active)\n", (unsigned int)urb, urb_priv->urb_num,
++ str_dir(urb->pipe), str_type(urb->pipe), epid);
++
++ /* Finish the URB with error status from USB core */
++ tc_finish_urb(hcd, urb, urb->status);
++ local_irq_restore(flags);
++ return 0;
++ }
++ }
++
++ /* Set URB status to Unlink for handling when interrupt comes. */
++ urb_priv->urb_state = UNLINK;
++
++ /* Differentiate dequeing of Bulk and Ctrl from Isoc and Intr */
++ switch(usb_pipetype(urb->pipe)) {
++ case PIPE_BULK:
++ /* Check if EP still is enabled */
++ if (TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
++ /* The EP was enabled, disable it. */
++ TxBulkEPList[epid].command &= ~IO_MASK(USB_EP_command, enable);
++ }
++ /* Kicking dummy list out of the party. */
++ TxBulkEPList[epid].next = virt_to_phys(&TxBulkEPList[(epid + 1) % NBR_OF_EPIDS]);
++ break;
++ case PIPE_CONTROL:
++ /* Check if EP still is enabled */
++ if (TxCtrlEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
++ /* The EP was enabled, disable it. */
++ TxCtrlEPList[epid].command &= ~IO_MASK(USB_EP_command, enable);
++ }
++ break;
++ case PIPE_ISOCHRONOUS:
++ /* Disabling, busy-wait and unlinking of Isoc SBs will be done in
++ finish_isoc_urb(). Because there might the case when URB is dequeued
++ but there are other valid URBs waiting */
++
++ /* Check if In Isoc EP still is enabled */
++ if (TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
++ /* The EP was enabled, disable it. */
++ TxIsocEPList[epid].command &= ~IO_MASK(USB_EP_command, enable);
++ }
++ break;
++ case PIPE_INTERRUPT:
++ /* Special care is taken for interrupt URBs. EPs are unlinked in
++ tc_finish_urb */
++ break;
++ default:
++ break;
++ }
++
++ /* Asynchronous unlink, finish the URB later from scheduled or other
++ event (data finished, error) */
++ tc_finish_urb_later(hcd, urb, urb->status);
++
++ local_irq_restore(flags);
++ DBFEXIT;
++ return 0;
++}
++
++
++static void tc_sync_finish_epid(struct usb_hcd *hcd, int epid) {
++ volatile int timeout = 10000;
++ struct urb* urb;
++ struct crisv10_urb_priv* urb_priv;
++ unsigned long flags;
++
++ volatile struct USB_EP_Desc *first_ep; /* First EP in the list. */
++ volatile struct USB_EP_Desc *curr_ep; /* Current EP, the iterator. */
++ volatile struct USB_EP_Desc *next_ep; /* The EP after current. */
++
++ int type = epid_state[epid].type;
++
++ /* Setting this flag will cause enqueue() to return -ENOENT for new
++ submitions on this endpoint and finish_urb() wont process queue further */
++ epid_state[epid].disabled = 1;
++
++ switch(type) {
++ case PIPE_BULK:
++ /* Check if EP still is enabled */
++ if (TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
++ /* The EP was enabled, disable it. */
++ TxBulkEPList[epid].command &= ~IO_MASK(USB_EP_command, enable);
++ tc_warn("sync_finish: Disabling EP for epid:%d\n", epid);
++
++ /* Do busy-wait until DMA not using this EP descriptor anymore */
++ while((*R_DMA_CH8_SUB0_EP ==
++ virt_to_phys(&TxBulkEPList[epid])) &&
++ (timeout-- > 0));
++ if(timeout == 0) {
++ warn("Timeout while waiting for DMA-TX-Bulk to leave EP for"
++ " epid:%d\n", epid);
++ }
++ }
++ break;
++
++ case PIPE_CONTROL:
++ /* Check if EP still is enabled */
++ if (TxCtrlEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
++ /* The EP was enabled, disable it. */
++ TxCtrlEPList[epid].command &= ~IO_MASK(USB_EP_command, enable);
++ tc_warn("sync_finish: Disabling EP for epid:%d\n", epid);
++
++ /* Do busy-wait until DMA not using this EP descriptor anymore */
++ while((*R_DMA_CH8_SUB1_EP ==
++ virt_to_phys(&TxCtrlEPList[epid])) &&
++ (timeout-- > 0));
++ if(timeout == 0) {
++ warn("Timeout while waiting for DMA-TX-Ctrl to leave EP for"
++ " epid:%d\n", epid);
++ }
++ }
++ break;
++
++ case PIPE_INTERRUPT:
++ local_irq_save(flags);
++ /* Disable all Intr EPs belonging to epid */
++ first_ep = &TxIntrEPList[0];
++ curr_ep = first_ep;
++ do {
++ next_ep = (struct USB_EP_Desc *)phys_to_virt(curr_ep->next);
++ if (IO_EXTRACT(USB_EP_command, epid, next_ep->command) == epid) {
++ /* Disable EP */
++ next_ep->command &= ~IO_MASK(USB_EP_command, enable);
++ }
++ curr_ep = phys_to_virt(curr_ep->next);
++ } while (curr_ep != first_ep);
++
++ local_irq_restore(flags);
++ break;
++
++ case PIPE_ISOCHRONOUS:
++ /* Check if EP still is enabled */
++ if (TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
++ tc_warn("sync_finish: Disabling Isoc EP for epid:%d\n", epid);
++ /* The EP was enabled, disable it. */
++ TxIsocEPList[epid].command &= ~IO_MASK(USB_EP_command, enable);
++
++ while((*R_DMA_CH8_SUB3_EP == virt_to_phys(&TxIsocEPList[epid])) &&
++ (timeout-- > 0));
++ if(timeout == 0) {
++ warn("Timeout while waiting for DMA-TX-Isoc to leave EP for"
++ " epid:%d\n", epid);
++ }
++ }
++ break;
++ }
++
++ local_irq_save(flags);
++
++ /* Finish if there is active URB for this endpoint */
++ if(activeUrbList[epid] != NULL) {
++ urb = activeUrbList[epid];
++ urb_priv = urb->hcpriv;
++ ASSERT(urb_priv);
++ tc_warn("Sync finish %s URB:0x%x[%d] (%s %s epid:%d) status:%d %s\n",
++ (urb == activeUrbList[epid]) ? "active" : "queued",
++ (unsigned int)urb, urb_priv->urb_num, str_dir(urb->pipe),
++ str_type(urb->pipe), epid, urb->status,
++ (urb_priv->later_data) ? "later-sched" : "");
++
++ tc_finish_urb(hcd, activeUrbList[epid], -ENOENT);
++ ASSERT(activeUrbList[epid] == NULL);
++ }
++
++ /* Finish any queued URBs for this endpoint. There won't be any resubmitions
++ because epid_disabled causes enqueue() to fail for this endpoint */
++ while((urb = urb_list_first(epid)) != NULL) {
++ urb_priv = urb->hcpriv;
++ ASSERT(urb_priv);
++
++ tc_warn("Sync finish %s URB:0x%x[%d] (%s %s epid:%d) status:%d %s\n",
++ (urb == activeUrbList[epid]) ? "active" : "queued",
++ (unsigned int)urb, urb_priv->urb_num, str_dir(urb->pipe),
++ str_type(urb->pipe), epid, urb->status,
++ (urb_priv->later_data) ? "later-sched" : "");
++
++ tc_finish_urb(hcd, urb, -ENOENT);
++ }
++ epid_state[epid].disabled = 0;
++ local_irq_restore(flags);
++}
++
++/* free resources associated with an endpoint (called from hcd_driver) */
++static void tc_endpoint_disable(struct usb_hcd *hcd,
++ struct usb_host_endpoint *ep) {
++ DBFENTER;
++ /* Only free epid if it has been allocated. We get two endpoint_disable
++ requests for ctrl endpoints so ignore the second one */
++ if(ep->hcpriv != NULL) {
++ struct crisv10_ep_priv *ep_priv = ep->hcpriv;
++ int epid = ep_priv->epid;
++ tc_warn("endpoint_disable ep:0x%x ep-priv:0x%x (%s) (epid:%d freed)\n",
++ (unsigned int)ep, (unsigned int)ep->hcpriv,
++ endpoint_to_str(&(ep->desc)), epid);
++
++ tc_sync_finish_epid(hcd, epid);
++
++ ASSERT(activeUrbList[epid] == NULL);
++ ASSERT(list_empty(&urb_list[epid]));
++
++ tc_free_epid(ep);
++ } else {
++ tc_dbg("endpoint_disable ep:0x%x ep-priv:0x%x (%s)\n", (unsigned int)ep,
++ (unsigned int)ep->hcpriv, endpoint_to_str(&(ep->desc)));
++ }
++ DBFEXIT;
++}
++
++static void tc_finish_urb_later_proc(void *data) {
++ unsigned long flags;
++ struct urb_later_data* uld = (struct urb_later_data*)data;
++ local_irq_save(flags);
++ if(uld->urb == NULL) {
++ late_dbg("Later finish of URB = NULL (allready finished)\n");
++ } else {
++ struct crisv10_urb_priv* urb_priv = uld->urb->hcpriv;
++ ASSERT(urb_priv);
++ if(urb_priv->urb_num == uld->urb_num) {
++ late_dbg("Later finish of URB:0x%x[%d]\n", (unsigned int)(uld->urb),
++ urb_priv->urb_num);
++ if(uld->status != uld->urb->status) {
++ errno_dbg("Later-finish URB with status:%d, later-status:%d\n",
++ uld->urb->status, uld->status);
++ }
++ if(uld != urb_priv->later_data) {
++ panic("Scheduled uld not same as URBs uld\n");
++ }
++ tc_finish_urb(uld->hcd, uld->urb, uld->status);
++ } else {
++ late_warn("Ignoring later finish of URB:0x%x[%d]"
++ ", urb_num doesn't match current URB:0x%x[%d]",
++ (unsigned int)(uld->urb), uld->urb_num,
++ (unsigned int)(uld->urb), urb_priv->urb_num);
++ }
++ }
++ local_irq_restore(flags);
++ kmem_cache_free(later_data_cache, uld);
++}
++
++static void tc_finish_urb_later(struct usb_hcd *hcd, struct urb *urb,
++ int status) {
++ struct crisv10_urb_priv *urb_priv = urb->hcpriv;
++ struct urb_later_data* uld;
++
++ ASSERT(urb_priv);
++
++ if(urb_priv->later_data != NULL) {
++ /* Later-finish allready scheduled for this URB, just update status to
++ return when finishing later */
++ errno_dbg("Later-finish schedule change URB status:%d with new"
++ " status:%d\n", urb_priv->later_data->status, status);
++
++ urb_priv->later_data->status = status;
++ return;
++ }
++
++ uld = kmem_cache_alloc(later_data_cache, SLAB_ATOMIC);
++ ASSERT(uld);
++
++ uld->hcd = hcd;
++ uld->urb = urb;
++ uld->urb_num = urb_priv->urb_num;
++ uld->status = status;
++
++ INIT_WORK(&uld->ws, tc_finish_urb_later_proc, uld);
++ urb_priv->later_data = uld;
++
++ /* Schedule the finishing of the URB to happen later */
++ schedule_delayed_work(&uld->ws, LATER_TIMER_DELAY);
++}
++
++static void tc_finish_isoc_urb(struct usb_hcd *hcd, struct urb *urb,
++ int status);
++
++static void tc_finish_urb(struct usb_hcd *hcd, struct urb *urb, int status) {
++ struct crisv10_hcd* crisv10_hcd = hcd_to_crisv10_hcd(hcd);
++ struct crisv10_urb_priv *urb_priv = urb->hcpriv;
++ int epid;
++ char toggle;
++ int urb_num;
++
++ DBFENTER;
++ ASSERT(urb_priv != NULL);
++ epid = urb_priv->epid;
++ urb_num = urb_priv->urb_num;
++
++ if(urb != activeUrbList[epid]) {
++ if(urb_list_entry(urb, epid)) {
++ /* Remove this URB from the list. Only happens when URB are finished
++ before having been processed (dequeing) */
++ urb_list_del(urb, epid);
++ } else {
++ tc_warn("Finishing of URB:0x%x[%d] neither active or in queue for"
++ " epid:%d\n", (unsigned int)urb, urb_num, epid);
++ }
++ }
++
++ /* Cancel any pending later-finish of this URB */
++ if(urb_priv->later_data) {
++ urb_priv->later_data->urb = NULL;
++ }
++
++ /* For an IN pipe, we always set the actual length, regardless of whether
++ there was an error or not (which means the device driver can use the data
++ if it wants to). */
++ if(usb_pipein(urb->pipe)) {
++ urb->actual_length = urb_priv->rx_offset;
++ } else {
++ /* Set actual_length for OUT urbs also; the USB mass storage driver seems
++ to want that. */
++ if (status == 0 && urb->status == -EINPROGRESS) {
++ urb->actual_length = urb->transfer_buffer_length;
++ } else {
++ /* We wouldn't know of any partial writes if there was an error. */
++ urb->actual_length = 0;
++ }
++ }
++
++
++ /* URB status mangling */
++ if(urb->status == -EINPROGRESS) {
++ /* The USB core hasn't changed the status, let's set our finish status */
++ urb->status = status;
++
++ if ((status == 0) && (urb->transfer_flags & URB_SHORT_NOT_OK) &&
++ usb_pipein(urb->pipe) &&
++ (urb->actual_length != urb->transfer_buffer_length)) {
++ /* URB_SHORT_NOT_OK means that short reads (shorter than the endpoint's
++ max length) is to be treated as an error. */
++ errno_dbg("Finishing URB:0x%x[%d] with SHORT_NOT_OK flag and short"
++ " data:%d\n", (unsigned int)urb, urb_num,
++ urb->actual_length);
++ urb->status = -EREMOTEIO;
++ }
++
++ if(urb_priv->urb_state == UNLINK) {
++ /* URB has been requested to be unlinked asynchronously */
++ urb->status = -ECONNRESET;
++ errno_dbg("Fixing unlink status of URB:0x%x[%d] to:%d\n",
++ (unsigned int)urb, urb_num, urb->status);
++ }
++ } else {
++ /* The USB Core wants to signal some error via the URB, pass it through */
++ }
++
++ /* use completely different finish function for Isoc URBs */
++ if(usb_pipeisoc(urb->pipe)) {
++ tc_finish_isoc_urb(hcd, urb, status);
++ return;
++ }
++
++ /* Do special unlinking of EPs for Intr traffic */
++ if(usb_pipeint(urb->pipe)) {
++ tc_dma_unlink_intr_urb(urb);
++ }
++
++ /* Release allocated bandwidth for periodic transfers */
++ if(usb_pipeint(urb->pipe) || usb_pipeisoc(urb->pipe))
++ usb_release_bandwidth(urb->dev, urb, 0);
++
++ /* This URB is active on EP */
++ if(urb == activeUrbList[epid]) {
++ /* We need to fiddle with the toggle bits because the hardware doesn't do
++ it for us. */
++ toggle = etrax_epid_get_toggle(epid, usb_pipeout(urb->pipe));
++ usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
++ usb_pipeout(urb->pipe), toggle);
++
++ /* Checks for Ctrl and Bulk EPs */
++ switch(usb_pipetype(urb->pipe)) {
++ case PIPE_BULK:
++ /* Check so Bulk EP realy is disabled before finishing active URB */
++ ASSERT((TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)) ==
++ IO_STATE(USB_EP_command, enable, no));
++ /* Disable sub-pointer for EP to avoid next tx_interrupt() to
++ process Bulk EP. */
++ TxBulkEPList[epid].sub = 0;
++ /* No need to wait for the DMA before changing the next pointer.
++ The modulo NBR_OF_EPIDS isn't actually necessary, since we will never use
++ the last one (INVALID_EPID) for actual traffic. */
++ TxBulkEPList[epid].next =
++ virt_to_phys(&TxBulkEPList[(epid + 1) % NBR_OF_EPIDS]);
++ break;
++ case PIPE_CONTROL:
++ /* Check so Ctrl EP realy is disabled before finishing active URB */
++ ASSERT((TxCtrlEPList[epid].command & IO_MASK(USB_EP_command, enable)) ==
++ IO_STATE(USB_EP_command, enable, no));
++ /* Disable sub-pointer for EP to avoid next tx_interrupt() to
++ process Ctrl EP. */
++ TxCtrlEPList[epid].sub = 0;
++ break;
++ }
++ }
++
++ /* Free HC-private URB data*/
++ urb_priv_free(hcd, urb);
++
++ if(urb->status) {
++ errno_dbg("finish_urb (URB:0x%x[%d] %s %s) (data:%d) status:%d\n",
++ (unsigned int)urb, urb_num, str_dir(urb->pipe),
++ str_type(urb->pipe), urb->actual_length, urb->status);
++ } else {
++ tc_dbg("finish_urb (URB:0x%x[%d] %s %s) (data:%d) status:%d\n",
++ (unsigned int)urb, urb_num, str_dir(urb->pipe),
++ str_type(urb->pipe), urb->actual_length, urb->status);
++ }
++
++ /* If we just finished an active URB, clear active pointer. */
++ if (urb == activeUrbList[epid]) {
++ /* Make URB not active on EP anymore */
++ activeUrbList[epid] = NULL;
++
++ if(urb->status == 0) {
++ /* URB finished sucessfully, process queue to see if there are any more
++ URBs waiting before we call completion function.*/
++ if(crisv10_hcd->running) {
++ /* Only process queue if USB controller is running */
++ tc_dma_process_queue(epid);
++ } else {
++ tc_warn("No processing of queue for epid:%d, USB Controller not"
++ " running\n", epid);
++ }
++ }
++ }
++
++ /* Hand the URB from HCD to its USB device driver, using its completion
++ functions */
++ usb_hcd_giveback_urb (hcd, urb);
++
++ /* Check the queue once more if the URB returned with error, because we
++ didn't do it before the completion function because the specification
++ states that the queue should not restart until all it's unlinked
++ URBs have been fully retired, with the completion functions run */
++ if(crisv10_hcd->running) {
++ /* Only process queue if USB controller is running */
++ tc_dma_process_queue(epid);
++ } else {
++ tc_warn("No processing of queue for epid:%d, USB Controller not running\n",
++ epid);
++ }
++
++ DBFEXIT;
++}
++
++static void tc_finish_isoc_urb(struct usb_hcd *hcd, struct urb *urb,
++ int status) {
++ struct crisv10_urb_priv *urb_priv = urb->hcpriv;
++ int epid, i;
++ volatile int timeout = 10000;
++
++ ASSERT(urb_priv);
++ epid = urb_priv->epid;
++
++ ASSERT(usb_pipeisoc(urb->pipe));
++
++ /* Set that all isoc packets have status and length set before
++ completing the urb. */
++ for (i = urb_priv->isoc_packet_counter; i < urb->number_of_packets; i++){
++ urb->iso_frame_desc[i].actual_length = 0;
++ urb->iso_frame_desc[i].status = -EPROTO;
++ }
++
++ /* Check if the URB is currently active (done or error) */
++ if(urb == activeUrbList[epid]) {
++ /* Check if there are another In Isoc URB queued for this epid */
++ if (!list_empty(&urb_list[epid])&& !epid_state[epid].disabled) {
++ /* Move it from queue to active and mark it started so Isoc transfers
++ won't be interrupted.
++ All Isoc URBs data transfers are already added to DMA lists so we
++ don't have to insert anything in DMA lists here. */
++ activeUrbList[epid] = urb_list_first(epid);
++ ((struct crisv10_urb_priv *)(activeUrbList[epid]->hcpriv))->urb_state =
++ STARTED;
++ urb_list_del(activeUrbList[epid], epid);
++
++ if(urb->status) {
++ errno_dbg("finish_isoc_urb (URB:0x%x[%d] %s %s) (%d of %d packets)"
++ " status:%d, new waiting URB:0x%x[%d]\n",
++ (unsigned int)urb, urb_priv->urb_num, str_dir(urb->pipe),
++ str_type(urb->pipe), urb_priv->isoc_packet_counter,
++ urb->number_of_packets, urb->status,
++ (unsigned int)activeUrbList[epid],
++ ((struct crisv10_urb_priv *)(activeUrbList[epid]->hcpriv))->urb_num);
++ }
++
++ } else { /* No other URB queued for this epid */
++ if(urb->status) {
++ errno_dbg("finish_isoc_urb (URB:0x%x[%d] %s %s) (%d of %d packets)"
++ " status:%d, no new URB waiting\n",
++ (unsigned int)urb, urb_priv->urb_num, str_dir(urb->pipe),
++ str_type(urb->pipe), urb_priv->isoc_packet_counter,
++ urb->number_of_packets, urb->status);
++ }
++
++ /* Check if EP is still enabled, then shut it down. */
++ if (TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
++ isoc_dbg("Isoc EP enabled for epid:%d, disabling it\n", epid);
++
++ /* Should only occur for In Isoc EPs where SB isn't consumed. */
++ ASSERT(usb_pipein(urb->pipe));
++
++ /* Disable it and wait for it to stop */
++ TxIsocEPList[epid].command &= ~IO_MASK(USB_EP_command, enable);
++
++ /* Ah, the luxury of busy-wait. */
++ while((*R_DMA_CH8_SUB3_EP == virt_to_phys(&TxIsocEPList[epid])) &&
++ (timeout-- > 0));
++ if(timeout == 0) {
++ warn("Timeout while waiting for DMA-TX-Isoc to leave EP for epid:%d\n", epid);
++ }
++ }
++
++ /* Unlink SB to say that epid is finished. */
++ TxIsocEPList[epid].sub = 0;
++ TxIsocEPList[epid].hw_len = 0;
++
++ /* No URB active for EP anymore */
++ activeUrbList[epid] = NULL;
++ }
++ } else { /* Finishing of not active URB (queued up with SBs thought) */
++ isoc_warn("finish_isoc_urb (URB:0x%x %s) (%d of %d packets) status:%d,"
++ " SB queued but not active\n",
++ (unsigned int)urb, str_dir(urb->pipe),
++ urb_priv->isoc_packet_counter, urb->number_of_packets,
++ urb->status);
++ if(usb_pipeout(urb->pipe)) {
++ /* Finishing of not yet active Out Isoc URB needs unlinking of SBs. */
++ struct USB_SB_Desc *iter_sb, *prev_sb, *next_sb;
++
++ iter_sb = TxIsocEPList[epid].sub ?
++ phys_to_virt(TxIsocEPList[epid].sub) : 0;
++ prev_sb = 0;
++
++ /* SB that is linked before this URBs first SB */
++ while (iter_sb && (iter_sb != urb_priv->first_sb)) {
++ prev_sb = iter_sb;
++ iter_sb = iter_sb->next ? phys_to_virt(iter_sb->next) : 0;
++ }
++
++ if (iter_sb == 0) {
++ /* Unlink of the URB currently being transmitted. */
++ prev_sb = 0;
++ iter_sb = TxIsocEPList[epid].sub ? phys_to_virt(TxIsocEPList[epid].sub) : 0;
++ }
++
++ while (iter_sb && (iter_sb != urb_priv->last_sb)) {
++ iter_sb = iter_sb->next ? phys_to_virt(iter_sb->next) : 0;
++ }
++
++ if (iter_sb) {
++ next_sb = iter_sb->next ? phys_to_virt(iter_sb->next) : 0;
++ } else {
++ /* This should only happen if the DMA has completed
++ processing the SB list for this EP while interrupts
++ are disabled. */
++ isoc_dbg("Isoc urb not found, already sent?\n");
++ next_sb = 0;
++ }
++ if (prev_sb) {
++ prev_sb->next = next_sb ? virt_to_phys(next_sb) : 0;
++ } else {
++ TxIsocEPList[epid].sub = next_sb ? virt_to_phys(next_sb) : 0;
++ }
++ }
++ }
++
++ /* Free HC-private URB data*/
++ urb_priv_free(hcd, urb);
++
++ usb_release_bandwidth(urb->dev, urb, 0);
++
++ /* Hand the URB from HCD to its USB device driver, using its completion
++ functions */
++ usb_hcd_giveback_urb (hcd, urb);
++}
++
++static __u32 urb_num = 0;
++
++/* allocate and initialize URB private data */
++static int urb_priv_create(struct usb_hcd *hcd, struct urb *urb, int epid,
++ int mem_flags) {
++ struct crisv10_urb_priv *urb_priv;
++
++ urb_priv = kmalloc(sizeof *urb_priv, mem_flags);
++ if (!urb_priv)
++ return -ENOMEM;
++ memset(urb_priv, 0, sizeof *urb_priv);
++
++ urb_priv->epid = epid;
++ urb_priv->urb_state = NOT_STARTED;
++
++ urb->hcpriv = urb_priv;
++ /* Assign URB a sequence number, and increment counter */
++ urb_priv->urb_num = urb_num;
++ urb_num++;
++ return 0;
++}
++
++/* free URB private data */
++static void urb_priv_free(struct usb_hcd *hcd, struct urb *urb) {
++ int i;
++ struct crisv10_urb_priv *urb_priv = urb->hcpriv;
++ ASSERT(urb_priv != 0);
++
++ /* Check it has any SBs linked that needs to be freed*/
++ if(urb_priv->first_sb != NULL) {
++ struct USB_SB_Desc *next_sb, *first_sb, *last_sb;
++ int i = 0;
++ first_sb = urb_priv->first_sb;
++ last_sb = urb_priv->last_sb;
++ ASSERT(last_sb);
++ while(first_sb != last_sb) {
++ next_sb = (struct USB_SB_Desc *)phys_to_virt(first_sb->next);
++ kmem_cache_free(usb_desc_cache, first_sb);
++ first_sb = next_sb;
++ i++;
++ }
++ kmem_cache_free(usb_desc_cache, last_sb);
++ i++;
++ }
++
++ /* Check if it has any EPs in its Intr pool that also needs to be freed */
++ if(urb_priv->intr_ep_pool_length > 0) {
++ for(i = 0; i < urb_priv->intr_ep_pool_length; i++) {
++ kfree(urb_priv->intr_ep_pool[i]);
++ }
++ /*
++ tc_dbg("Freed %d EPs from URB:0x%x EP pool\n",
++ urb_priv->intr_ep_pool_length, (unsigned int)urb);
++ */
++ }
++
++ kfree(urb_priv);
++ urb->hcpriv = NULL;
++}
++
++static int ep_priv_create(struct usb_host_endpoint *ep, int mem_flags) {
++ struct crisv10_ep_priv *ep_priv;
++
++ ep_priv = kmalloc(sizeof *ep_priv, mem_flags);
++ if (!ep_priv)
++ return -ENOMEM;
++ memset(ep_priv, 0, sizeof *ep_priv);
++
++ ep->hcpriv = ep_priv;
++ return 0;
++}
++
++static void ep_priv_free(struct usb_host_endpoint *ep) {
++ struct crisv10_ep_priv *ep_priv = ep->hcpriv;
++ ASSERT(ep_priv);
++ kfree(ep_priv);
++ ep->hcpriv = NULL;
++}
++
++/* EPID handling functions, managing EP-list in Etrax through wrappers */
++/* ------------------------------------------------------------------- */
++
++/* Sets up a new EPID for an endpoint or returns existing if found */
++static int tc_setup_epid(struct usb_host_endpoint *ep, struct urb *urb,
++ int mem_flags) {
++ int epid;
++ char devnum, endpoint, out_traffic, slow;
++ int maxlen;
++ __u32 epid_data;
++ struct crisv10_ep_priv *ep_priv = ep->hcpriv;
++
++ DBFENTER;
++
++ /* Check if a valid epid already is setup for this endpoint */
++ if(ep_priv != NULL) {
++ return ep_priv->epid;
++ }
++
++ /* We must find and initiate a new epid for this urb. */
++ epid = tc_allocate_epid();
++
++ if (epid == -1) {
++ /* Failed to allocate a new epid. */
++ DBFEXIT;
++ return epid;
++ }
++
++ /* We now have a new epid to use. Claim it. */
++ epid_state[epid].inuse = 1;
++
++ /* Init private data for new endpoint */
++ if(ep_priv_create(ep, mem_flags) != 0) {
++ return -ENOMEM;
++ }
++ ep_priv = ep->hcpriv;
++ ep_priv->epid = epid;
++
++ devnum = usb_pipedevice(urb->pipe);
++ endpoint = usb_pipeendpoint(urb->pipe);
++ slow = (urb->dev->speed == USB_SPEED_LOW);
++ maxlen = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe));
++
++ if (usb_pipetype(urb->pipe) == PIPE_CONTROL) {
++ /* We want both IN and OUT control traffic to be put on the same
++ EP/SB list. */
++ out_traffic = 1;
++ } else {
++ out_traffic = usb_pipeout(urb->pipe);
++ }
++
++ if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
++ epid_data = IO_STATE(R_USB_EPT_DATA_ISO, valid, yes) |
++ /* FIXME: Change any to the actual port? */
++ IO_STATE(R_USB_EPT_DATA_ISO, port, any) |
++ IO_FIELD(R_USB_EPT_DATA_ISO, max_len, maxlen) |
++ IO_FIELD(R_USB_EPT_DATA_ISO, ep, endpoint) |
++ IO_FIELD(R_USB_EPT_DATA_ISO, dev, devnum);
++ etrax_epid_iso_set(epid, epid_data);
++ } else {
++ epid_data = IO_STATE(R_USB_EPT_DATA, valid, yes) |
++ IO_FIELD(R_USB_EPT_DATA, low_speed, slow) |
++ /* FIXME: Change any to the actual port? */
++ IO_STATE(R_USB_EPT_DATA, port, any) |
++ IO_FIELD(R_USB_EPT_DATA, max_len, maxlen) |
++ IO_FIELD(R_USB_EPT_DATA, ep, endpoint) |
++ IO_FIELD(R_USB_EPT_DATA, dev, devnum);
++ etrax_epid_set(epid, epid_data);
++ }
++
++ epid_state[epid].out_traffic = out_traffic;
++ epid_state[epid].type = usb_pipetype(urb->pipe);
++
++ tc_warn("Setting up ep:0x%x epid:%d (addr:%d endp:%d max_len:%d %s %s %s)\n",
++ (unsigned int)ep, epid, devnum, endpoint, maxlen,
++ str_type(urb->pipe), out_traffic ? "out" : "in",
++ slow ? "low" : "full");
++
++ /* Enable Isoc eof interrupt if we set up the first Isoc epid */
++ if(usb_pipeisoc(urb->pipe)) {
++ isoc_epid_counter++;
++ if(isoc_epid_counter == 1) {
++ isoc_warn("Enabled Isoc eof interrupt\n");
++ *R_USB_IRQ_MASK_SET |= IO_STATE(R_USB_IRQ_MASK_SET, iso_eof, set);
++ }
++ }
++
++ DBFEXIT;
++ return epid;
++}
++
++static void tc_free_epid(struct usb_host_endpoint *ep) {
++ unsigned long flags;
++ struct crisv10_ep_priv *ep_priv = ep->hcpriv;
++ int epid;
++ volatile int timeout = 10000;
++
++ DBFENTER;
++
++ if (ep_priv == NULL) {
++ tc_warn("Trying to free unused epid on ep:0x%x\n", (unsigned int)ep);
++ DBFEXIT;
++ return;
++ }
++
++ epid = ep_priv->epid;
++
++ /* Disable Isoc eof interrupt if we free the last Isoc epid */
++ if(epid_isoc(epid)) {
++ ASSERT(isoc_epid_counter > 0);
++ isoc_epid_counter--;
++ if(isoc_epid_counter == 0) {
++ *R_USB_IRQ_MASK_SET &= ~IO_STATE(R_USB_IRQ_MASK_SET, iso_eof, set);
++ isoc_warn("Disabled Isoc eof interrupt\n");
++ }
++ }
++
++ /* Take lock manualy instead of in epid_x_x wrappers,
++ because we need to be polling here */
++ spin_lock_irqsave(&etrax_epid_lock, flags);
++
++ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, epid);
++ nop();
++ while((*R_USB_EPT_DATA & IO_MASK(R_USB_EPT_DATA, hold)) &&
++ (timeout-- > 0));
++ if(timeout == 0) {
++ warn("Timeout while waiting for epid:%d to drop hold\n", epid);
++ }
++ /* This will, among other things, set the valid field to 0. */
++ *R_USB_EPT_DATA = 0;
++ spin_unlock_irqrestore(&etrax_epid_lock, flags);
++
++ /* Free resource in software state info list */
++ epid_state[epid].inuse = 0;
++
++ /* Free private endpoint data */
++ ep_priv_free(ep);
++
++ DBFEXIT;
++}
++
++static int tc_allocate_epid(void) {
++ int i;
++ DBFENTER;
++ for (i = 0; i < NBR_OF_EPIDS; i++) {
++ if (!epid_inuse(i)) {
++ DBFEXIT;
++ return i;
++ }
++ }
++
++ tc_warn("Found no free epids\n");
++ DBFEXIT;
++ return -1;
+ }
+
+
+-static void init_tx_intr_ep(void)
+-{
+- int i;
++/* Wrappers around the list functions (include/linux/list.h). */
++/* ---------------------------------------------------------- */
++static inline int __urb_list_empty(int epid) {
++ int retval;
++ retval = list_empty(&urb_list[epid]);
++ return retval;
++}
+
+- DBFENTER;
++/* Returns first urb for this epid, or NULL if list is empty. */
++static inline struct urb *urb_list_first(int epid) {
++ unsigned long flags;
++ struct urb *first_urb = 0;
++ spin_lock_irqsave(&urb_list_lock, flags);
++ if (!__urb_list_empty(epid)) {
++ /* Get the first urb (i.e. head->next). */
++ urb_entry_t *urb_entry = list_entry((&urb_list[epid])->next, urb_entry_t, list);
++ first_urb = urb_entry->urb;
++ }
++ spin_unlock_irqrestore(&urb_list_lock, flags);
++ return first_urb;
++}
+
+- /* Read comment at zout_buffer declaration for an explanation to this. */
+- TxIntrSB_zout.sw_len = 1;
+- TxIntrSB_zout.next = 0;
+- TxIntrSB_zout.buf = virt_to_phys(&zout_buffer[0]);
+- TxIntrSB_zout.command = (IO_FIELD(USB_SB_command, rem, 0) |
+- IO_STATE(USB_SB_command, tt, zout) |
+- IO_STATE(USB_SB_command, full, yes) |
+- IO_STATE(USB_SB_command, eot, yes) |
+- IO_STATE(USB_SB_command, eol, yes));
+-
+- for (i = 0; i < (MAX_INTR_INTERVAL - 1); i++) {
+- CHECK_ALIGN(&TxIntrEPList[i]);
+- TxIntrEPList[i].hw_len = 0;
+- TxIntrEPList[i].command =
+- (IO_STATE(USB_EP_command, eof, yes) |
+- IO_STATE(USB_EP_command, enable, yes) |
+- IO_FIELD(USB_EP_command, epid, INVALID_EPID));
+- TxIntrEPList[i].sub = virt_to_phys(&TxIntrSB_zout);
+- TxIntrEPList[i].next = virt_to_phys(&TxIntrEPList[i + 1]);
+- }
++/* Adds an urb_entry last in the list for this epid. */
++static inline void urb_list_add(struct urb *urb, int epid, int mem_flags) {
++ unsigned long flags;
++ urb_entry_t *urb_entry = (urb_entry_t *)kmalloc(sizeof(urb_entry_t), mem_flags);
++ ASSERT(urb_entry);
++
++ urb_entry->urb = urb;
++ spin_lock_irqsave(&urb_list_lock, flags);
++ list_add_tail(&urb_entry->list, &urb_list[epid]);
++ spin_unlock_irqrestore(&urb_list_lock, flags);
++}
+
+- CHECK_ALIGN(&TxIntrEPList[i]);
+- TxIntrEPList[i].hw_len = 0;
+- TxIntrEPList[i].command =
+- (IO_STATE(USB_EP_command, eof, yes) |
+- IO_STATE(USB_EP_command, eol, yes) |
+- IO_STATE(USB_EP_command, enable, yes) |
+- IO_FIELD(USB_EP_command, epid, INVALID_EPID));
+- TxIntrEPList[i].sub = virt_to_phys(&TxIntrSB_zout);
+- TxIntrEPList[i].next = virt_to_phys(&TxIntrEPList[0]);
+-
+- *R_DMA_CH8_SUB2_EP = virt_to_phys(&TxIntrEPList[0]);
+- *R_DMA_CH8_SUB2_CMD = IO_STATE(R_DMA_CH8_SUB2_CMD, cmd, start);
+- DBFEXIT;
++/* Search through the list for an element that contains this urb. (The list
++ is expected to be short and the one we are about to delete will often be
++ the first in the list.)
++ Should be protected by spin_locks in calling function */
++static inline urb_entry_t *__urb_list_entry(struct urb *urb, int epid) {
++ struct list_head *entry;
++ struct list_head *tmp;
++ urb_entry_t *urb_entry;
++
++ list_for_each_safe(entry, tmp, &urb_list[epid]) {
++ urb_entry = list_entry(entry, urb_entry_t, list);
++ ASSERT(urb_entry);
++ ASSERT(urb_entry->urb);
++
++ if (urb_entry->urb == urb) {
++ return urb_entry;
++ }
++ }
++ return 0;
++}
++
++/* Same function as above but for global use. Protects list by spinlock */
++static inline urb_entry_t *urb_list_entry(struct urb *urb, int epid) {
++ unsigned long flags;
++ urb_entry_t *urb_entry;
++ spin_lock_irqsave(&urb_list_lock, flags);
++ urb_entry = __urb_list_entry(urb, epid);
++ spin_unlock_irqrestore(&urb_list_lock, flags);
++ return (urb_entry);
+ }
+
+-static void init_tx_isoc_ep(void)
+-{
+- int i;
++/* Delete an urb from the list. */
++static inline void urb_list_del(struct urb *urb, int epid) {
++ unsigned long flags;
++ urb_entry_t *urb_entry;
++
++ /* Delete entry and free. */
++ spin_lock_irqsave(&urb_list_lock, flags);
++ urb_entry = __urb_list_entry(urb, epid);
++ ASSERT(urb_entry);
++
++ list_del(&urb_entry->list);
++ spin_unlock_irqrestore(&urb_list_lock, flags);
++ kfree(urb_entry);
++}
+
+- DBFENTER;
++/* Move an urb to the end of the list. */
++static inline void urb_list_move_last(struct urb *urb, int epid) {
++ unsigned long flags;
++ urb_entry_t *urb_entry;
++
++ spin_lock_irqsave(&urb_list_lock, flags);
++ urb_entry = __urb_list_entry(urb, epid);
++ ASSERT(urb_entry);
++
++ list_del(&urb_entry->list);
++ list_add_tail(&urb_entry->list, &urb_list[epid]);
++ spin_unlock_irqrestore(&urb_list_lock, flags);
++}
+
+- /* Read comment at zout_buffer declaration for an explanation to this. */
+- TxIsocSB_zout.sw_len = 1;
+- TxIsocSB_zout.next = 0;
+- TxIsocSB_zout.buf = virt_to_phys(&zout_buffer[0]);
+- TxIsocSB_zout.command = (IO_FIELD(USB_SB_command, rem, 0) |
+- IO_STATE(USB_SB_command, tt, zout) |
+- IO_STATE(USB_SB_command, full, yes) |
+- IO_STATE(USB_SB_command, eot, yes) |
+- IO_STATE(USB_SB_command, eol, yes));
+-
+- /* The last isochronous EP descriptor is a dummy. */
+-
+- for (i = 0; i < (NBR_OF_EPIDS - 1); i++) {
+- CHECK_ALIGN(&TxIsocEPList[i]);
+- TxIsocEPList[i].hw_len = 0;
+- TxIsocEPList[i].command = IO_FIELD(USB_EP_command, epid, i);
+- TxIsocEPList[i].sub = 0;
+- TxIsocEPList[i].next = virt_to_phys(&TxIsocEPList[i + 1]);
++/* Get the next urb in the list. */
++static inline struct urb *urb_list_next(struct urb *urb, int epid) {
++ unsigned long flags;
++ urb_entry_t *urb_entry;
++
++ spin_lock_irqsave(&urb_list_lock, flags);
++ urb_entry = __urb_list_entry(urb, epid);
++ ASSERT(urb_entry);
++
++ if (urb_entry->list.next != &urb_list[epid]) {
++ struct list_head *elem = urb_entry->list.next;
++ urb_entry = list_entry(elem, urb_entry_t, list);
++ spin_unlock_irqrestore(&urb_list_lock, flags);
++ return urb_entry->urb;
++ } else {
++ spin_unlock_irqrestore(&urb_list_lock, flags);
++ return NULL;
++ }
++}
++
++struct USB_EP_Desc* create_ep(int epid, struct USB_SB_Desc* sb_desc,
++ int mem_flags) {
++ struct USB_EP_Desc *ep_desc;
++ ep_desc = (struct USB_EP_Desc *) kmem_cache_alloc(usb_desc_cache, mem_flags);
++ if(ep_desc == NULL)
++ return NULL;
++ memset(ep_desc, 0, sizeof(struct USB_EP_Desc));
++
++ ep_desc->hw_len = 0;
++ ep_desc->command = (IO_FIELD(USB_EP_command, epid, epid) |
++ IO_STATE(USB_EP_command, enable, yes));
++ if(sb_desc == NULL) {
++ ep_desc->sub = 0;
++ } else {
++ ep_desc->sub = virt_to_phys(sb_desc);
++ }
++ return ep_desc;
++}
++
++#define TT_ZOUT 0
++#define TT_IN 1
++#define TT_OUT 2
++#define TT_SETUP 3
++
++#define CMD_EOL IO_STATE(USB_SB_command, eol, yes)
++#define CMD_INTR IO_STATE(USB_SB_command, intr, yes)
++#define CMD_FULL IO_STATE(USB_SB_command, full, yes)
++
++/* Allocation and setup of a generic SB. Used to create SETUP, OUT and ZOUT
++ SBs. Also used by create_sb_in() to avoid same allocation procedure at two
++ places */
++struct USB_SB_Desc* create_sb(struct USB_SB_Desc* sb_prev, int tt, void* data,
++ int datalen, int mem_flags) {
++ struct USB_SB_Desc *sb_desc;
++ sb_desc = (struct USB_SB_Desc*)kmem_cache_alloc(usb_desc_cache, mem_flags);
++ if(sb_desc == NULL)
++ return NULL;
++ memset(sb_desc, 0, sizeof(struct USB_SB_Desc));
++
++ sb_desc->command = IO_FIELD(USB_SB_command, tt, tt) |
++ IO_STATE(USB_SB_command, eot, yes);
++
++ sb_desc->sw_len = datalen;
++ if(data != NULL) {
++ sb_desc->buf = virt_to_phys(data);
++ } else {
++ sb_desc->buf = 0;
++ }
++ if(sb_prev != NULL) {
++ sb_prev->next = virt_to_phys(sb_desc);
++ }
++ return sb_desc;
++}
++
++/* Creates a copy of an existing SB by allocation space for it and copy
++ settings */
++struct USB_SB_Desc* create_sb_copy(struct USB_SB_Desc* sb_orig, int mem_flags) {
++ struct USB_SB_Desc *sb_desc;
++ sb_desc = (struct USB_SB_Desc*)kmem_cache_alloc(usb_desc_cache, mem_flags);
++ if(sb_desc == NULL)
++ return NULL;
++
++ memcpy(sb_desc, sb_orig, sizeof(struct USB_SB_Desc));
++ return sb_desc;
++}
++
++/* A specific create_sb function for creation of in SBs. This is due to
++ that datalen in In SBs shows how many packets we are expecting. It also
++ sets up the rem field to show if how many bytes we expect in last packet
++ if it's not a full one */
++struct USB_SB_Desc* create_sb_in(struct USB_SB_Desc* sb_prev, int datalen,
++ int maxlen, int mem_flags) {
++ struct USB_SB_Desc *sb_desc;
++ sb_desc = create_sb(sb_prev, TT_IN, NULL,
++ datalen ? (datalen - 1) / maxlen + 1 : 0, mem_flags);
++ if(sb_desc == NULL)
++ return NULL;
++ sb_desc->command |= IO_FIELD(USB_SB_command, rem, datalen % maxlen);
++ return sb_desc;
++}
++
++void set_sb_cmds(struct USB_SB_Desc *sb_desc, __u16 flags) {
++ sb_desc->command |= flags;
++}
++
++int create_sb_for_urb(struct urb *urb, int mem_flags) {
++ int is_out = !usb_pipein(urb->pipe);
++ int type = usb_pipetype(urb->pipe);
++ int maxlen = usb_maxpacket(urb->dev, urb->pipe, is_out);
++ int buf_len = urb->transfer_buffer_length;
++ void *buf = buf_len > 0 ? urb->transfer_buffer : NULL;
++ struct USB_SB_Desc *sb_desc = NULL;
++
++ struct crisv10_urb_priv *urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ ASSERT(urb_priv != NULL);
++
++ switch(type) {
++ case PIPE_CONTROL:
++ /* Setup stage */
++ sb_desc = create_sb(NULL, TT_SETUP, urb->setup_packet, 8, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++ set_sb_cmds(sb_desc, CMD_FULL);
++
++ /* Attach first SB to URB */
++ urb_priv->first_sb = sb_desc;
++
++ if (is_out) { /* Out Control URB */
++ /* If this Control OUT transfer has an optional data stage we add
++ an OUT token before the mandatory IN (status) token */
++ if ((buf_len > 0) && buf) {
++ sb_desc = create_sb(sb_desc, TT_OUT, buf, buf_len, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++ set_sb_cmds(sb_desc, CMD_FULL);
++ }
++
++ /* Status stage */
++ /* The data length has to be exactly 1. This is due to a requirement
++ of the USB specification that a host must be prepared to receive
++ data in the status phase */
++ sb_desc = create_sb(sb_desc, TT_IN, NULL, 1, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++ } else { /* In control URB */
++ /* Data stage */
++ sb_desc = create_sb_in(sb_desc, buf_len, maxlen, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++
++ /* Status stage */
++ /* Read comment at zout_buffer declaration for an explanation to this. */
++ sb_desc = create_sb(sb_desc, TT_ZOUT, &zout_buffer[0], 1, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++ /* Set descriptor interrupt flag for in URBs so we can finish URB after
++ zout-packet has been sent */
++ set_sb_cmds(sb_desc, CMD_INTR | CMD_FULL);
++ }
++ /* Set end-of-list flag in last SB */
++ set_sb_cmds(sb_desc, CMD_EOL);
++ /* Attach last SB to URB */
++ urb_priv->last_sb = sb_desc;
++ break;
++
++ case PIPE_BULK:
++ if (is_out) { /* Out Bulk URB */
++ sb_desc = create_sb(NULL, TT_OUT, buf, buf_len, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++ /* The full field is set to yes, even if we don't actually check that
++ this is a full-length transfer (i.e., that transfer_buffer_length %
++ maxlen = 0).
++ Setting full prevents the USB controller from sending an empty packet
++ in that case. However, if URB_ZERO_PACKET was set we want that. */
++ if (!(urb->transfer_flags & URB_ZERO_PACKET)) {
++ set_sb_cmds(sb_desc, CMD_FULL);
++ }
++ } else { /* In Bulk URB */
++ sb_desc = create_sb_in(NULL, buf_len, maxlen, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++ }
++ /* Set end-of-list flag for last SB */
++ set_sb_cmds(sb_desc, CMD_EOL);
++
++ /* Attach SB to URB */
++ urb_priv->first_sb = sb_desc;
++ urb_priv->last_sb = sb_desc;
++ break;
++
++ case PIPE_INTERRUPT:
++ if(is_out) { /* Out Intr URB */
++ sb_desc = create_sb(NULL, TT_OUT, buf, buf_len, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++
++ /* The full field is set to yes, even if we don't actually check that
++ this is a full-length transfer (i.e., that transfer_buffer_length %
++ maxlen = 0).
++ Setting full prevents the USB controller from sending an empty packet
++ in that case. However, if URB_ZERO_PACKET was set we want that. */
++ if (!(urb->transfer_flags & URB_ZERO_PACKET)) {
++ set_sb_cmds(sb_desc, CMD_FULL);
++ }
++ /* Only generate TX interrupt if it's a Out URB*/
++ set_sb_cmds(sb_desc, CMD_INTR);
++
++ } else { /* In Intr URB */
++ sb_desc = create_sb_in(NULL, buf_len, maxlen, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++ }
++ /* Set end-of-list flag for last SB */
++ set_sb_cmds(sb_desc, CMD_EOL);
++
++ /* Attach SB to URB */
++ urb_priv->first_sb = sb_desc;
++ urb_priv->last_sb = sb_desc;
++
++ break;
++ case PIPE_ISOCHRONOUS:
++ if(is_out) { /* Out Isoc URB */
++ int i;
++ if(urb->number_of_packets == 0) {
++ tc_err("Can't create SBs for Isoc URB with zero packets\n");
++ return -EPIPE;
++ }
++ /* Create one SB descriptor for each packet and link them together. */
++ for(i = 0; i < urb->number_of_packets; i++) {
++ if (urb->iso_frame_desc[i].length > 0) {
++
++ sb_desc = create_sb(sb_desc, TT_OUT, urb->transfer_buffer +
++ urb->iso_frame_desc[i].offset,
++ urb->iso_frame_desc[i].length, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++
++ /* Check if it's a full length packet */
++ if (urb->iso_frame_desc[i].length ==
++ usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe))) {
++ set_sb_cmds(sb_desc, CMD_FULL);
++ }
++
++ } else { /* zero length packet */
++ sb_desc = create_sb(sb_desc, TT_ZOUT, &zout_buffer[0], 1, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++ set_sb_cmds(sb_desc, CMD_FULL);
++ }
++ /* Attach first SB descriptor to URB */
++ if (i == 0) {
++ urb_priv->first_sb = sb_desc;
++ }
++ }
++ /* Set interrupt and end-of-list flags in last SB */
++ set_sb_cmds(sb_desc, CMD_INTR | CMD_EOL);
++ /* Attach last SB descriptor to URB */
++ urb_priv->last_sb = sb_desc;
++ tc_dbg("Created %d out SBs for Isoc URB:0x%x\n",
++ urb->number_of_packets, (unsigned int)urb);
++ } else { /* In Isoc URB */
++ /* Actual number of packets is not relevant for periodic in traffic as
++ long as it is more than zero. Set to 1 always. */
++ sb_desc = create_sb(sb_desc, TT_IN, NULL, 1, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++ /* Set end-of-list flags for SB */
++ set_sb_cmds(sb_desc, CMD_EOL);
++
++ /* Attach SB to URB */
++ urb_priv->first_sb = sb_desc;
++ urb_priv->last_sb = sb_desc;
++ }
++ break;
++ default:
++ tc_err("Unknown pipe-type\n");
++ return -EPIPE;
++ break;
++ }
++ return 0;
++}
++
++int init_intr_urb(struct urb *urb, int mem_flags) {
++ struct crisv10_urb_priv *urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ struct USB_EP_Desc* ep_desc;
++ int interval;
++ int i;
++ int ep_count;
++
++ ASSERT(urb_priv != NULL);
++ ASSERT(usb_pipeint(urb->pipe));
++ /* We can't support interval longer than amount of eof descriptors in
++ TxIntrEPList */
++ if(urb->interval > MAX_INTR_INTERVAL) {
++ tc_err("Interrupt interval %dms too big (max: %dms)\n", urb->interval,
++ MAX_INTR_INTERVAL);
++ return -EINVAL;
++ }
++
++ /* We assume that the SB descriptors already have been setup */
++ ASSERT(urb_priv->first_sb != NULL);
++
++ /* Round of the interval to 2^n, it is obvious that this code favours
++ smaller numbers, but that is actually a good thing */
++ /* FIXME: The "rounding error" for larger intervals will be quite
++ large. For in traffic this shouldn't be a problem since it will only
++ mean that we "poll" more often. */
++ interval = urb->interval;
++ for (i = 0; interval; i++) {
++ interval = interval >> 1;
++ }
++ urb_priv->interval = 1 << (i - 1);
++
++ /* We can only have max interval for Out Interrupt due to that we can only
++ handle one linked in EP for a certain epid in the Intr descr array at the
++ time. The USB Controller in the Etrax 100LX continues to process Intr EPs
++ so we have no way of knowing which one that caused the actual transfer if
++ we have several linked in. */
++ if(usb_pipeout(urb->pipe)) {
++ urb_priv->interval = MAX_INTR_INTERVAL;
++ }
++
++ /* Calculate amount of EPs needed */
++ ep_count = MAX_INTR_INTERVAL / urb_priv->interval;
++
++ for(i = 0; i < ep_count; i++) {
++ ep_desc = create_ep(urb_priv->epid, urb_priv->first_sb, mem_flags);
++ if(ep_desc == NULL) {
++ /* Free any descriptors that we may have allocated before failure */
++ while(i > 0) {
++ i--;
++ kfree(urb_priv->intr_ep_pool[i]);
++ }
++ return -ENOMEM;
++ }
++ urb_priv->intr_ep_pool[i] = ep_desc;
++ }
++ urb_priv->intr_ep_pool_length = ep_count;
++ return 0;
++}
++
++/* DMA RX/TX functions */
++/* ----------------------- */
++
++static void tc_dma_init_rx_list(void) {
++ int i;
++
++ /* Setup descriptor list except last one */
++ for (i = 0; i < (NBR_OF_RX_DESC - 1); i++) {
++ RxDescList[i].sw_len = RX_DESC_BUF_SIZE;
++ RxDescList[i].command = 0;
++ RxDescList[i].next = virt_to_phys(&RxDescList[i + 1]);
++ RxDescList[i].buf = virt_to_phys(RxBuf + (i * RX_DESC_BUF_SIZE));
++ RxDescList[i].hw_len = 0;
++ RxDescList[i].status = 0;
++
++ /* DMA IN cache bug. (struct etrax_dma_descr has the same layout as
++ USB_IN_Desc for the relevant fields.) */
++ prepare_rx_descriptor((struct etrax_dma_descr*)&RxDescList[i]);
++
++ }
++ /* Special handling of last descriptor */
++ RxDescList[i].sw_len = RX_DESC_BUF_SIZE;
++ RxDescList[i].command = IO_STATE(USB_IN_command, eol, yes);
++ RxDescList[i].next = virt_to_phys(&RxDescList[0]);
++ RxDescList[i].buf = virt_to_phys(RxBuf + (i * RX_DESC_BUF_SIZE));
++ RxDescList[i].hw_len = 0;
++ RxDescList[i].status = 0;
++
++ /* Setup list pointers that show progress in list */
++ myNextRxDesc = &RxDescList[0];
++ myLastRxDesc = &RxDescList[NBR_OF_RX_DESC - 1];
++
++ flush_etrax_cache();
++ /* Point DMA to first descriptor in list and start it */
++ *R_DMA_CH9_FIRST = virt_to_phys(myNextRxDesc);
++ *R_DMA_CH9_CMD = IO_STATE(R_DMA_CH9_CMD, cmd, start);
++}
++
++
++static void tc_dma_init_tx_bulk_list(void) {
++ int i;
++ volatile struct USB_EP_Desc *epDescr;
++
++ for (i = 0; i < (NBR_OF_EPIDS - 1); i++) {
++ epDescr = &(TxBulkEPList[i]);
++ CHECK_ALIGN(epDescr);
++ epDescr->hw_len = 0;
++ epDescr->command = IO_FIELD(USB_EP_command, epid, i);
++ epDescr->sub = 0;
++ epDescr->next = virt_to_phys(&TxBulkEPList[i + 1]);
++
++ /* Initiate two EPs, disabled and with the eol flag set. No need for any
++ preserved epid. */
++
++ /* The first one has the intr flag set so we get an interrupt when the DMA
++ channel is about to become disabled. */
++ CHECK_ALIGN(&TxBulkDummyEPList[i][0]);
++ TxBulkDummyEPList[i][0].hw_len = 0;
++ TxBulkDummyEPList[i][0].command = (IO_FIELD(USB_EP_command, epid, DUMMY_EPID) |
++ IO_STATE(USB_EP_command, eol, yes) |
++ IO_STATE(USB_EP_command, intr, yes));
++ TxBulkDummyEPList[i][0].sub = 0;
++ TxBulkDummyEPList[i][0].next = virt_to_phys(&TxBulkDummyEPList[i][1]);
++
++ /* The second one. */
++ CHECK_ALIGN(&TxBulkDummyEPList[i][1]);
++ TxBulkDummyEPList[i][1].hw_len = 0;
++ TxBulkDummyEPList[i][1].command = (IO_FIELD(USB_EP_command, epid, DUMMY_EPID) |
++ IO_STATE(USB_EP_command, eol, yes));
++ TxBulkDummyEPList[i][1].sub = 0;
++ /* The last dummy's next pointer is the same as the current EP's next pointer. */
++ TxBulkDummyEPList[i][1].next = virt_to_phys(&TxBulkEPList[i + 1]);
++ }
++
++ /* Special handling of last descr in list, make list circular */
++ epDescr = &TxBulkEPList[i];
++ CHECK_ALIGN(epDescr);
++ epDescr->hw_len = 0;
++ epDescr->command = IO_STATE(USB_EP_command, eol, yes) |
++ IO_FIELD(USB_EP_command, epid, i);
++ epDescr->sub = 0;
++ epDescr->next = virt_to_phys(&TxBulkEPList[0]);
++
++ /* Init DMA sub-channel pointers to last item in each list */
++ *R_DMA_CH8_SUB0_EP = virt_to_phys(&TxBulkEPList[i]);
++ /* No point in starting the bulk channel yet.
++ *R_DMA_CH8_SUB0_CMD = IO_STATE(R_DMA_CH8_SUB0_CMD, cmd, start); */
++}
++
++static void tc_dma_init_tx_ctrl_list(void) {
++ int i;
++ volatile struct USB_EP_Desc *epDescr;
++
++ for (i = 0; i < (NBR_OF_EPIDS - 1); i++) {
++ epDescr = &(TxCtrlEPList[i]);
++ CHECK_ALIGN(epDescr);
++ epDescr->hw_len = 0;
++ epDescr->command = IO_FIELD(USB_EP_command, epid, i);
++ epDescr->sub = 0;
++ epDescr->next = virt_to_phys(&TxCtrlEPList[i + 1]);
++ }
++ /* Special handling of last descr in list, make list circular */
++ epDescr = &TxCtrlEPList[i];
++ CHECK_ALIGN(epDescr);
++ epDescr->hw_len = 0;
++ epDescr->command = IO_STATE(USB_EP_command, eol, yes) |
++ IO_FIELD(USB_EP_command, epid, i);
++ epDescr->sub = 0;
++ epDescr->next = virt_to_phys(&TxCtrlEPList[0]);
++
++ /* Init DMA sub-channel pointers to last item in each list */
++ *R_DMA_CH8_SUB1_EP = virt_to_phys(&TxCtrlEPList[i]);
++ /* No point in starting the ctrl channel yet.
++ *R_DMA_CH8_SUB1_CMD = IO_STATE(R_DMA_CH8_SUB0_CMD, cmd, start); */
++}
++
++
++static void tc_dma_init_tx_intr_list(void) {
++ int i;
++
++ TxIntrSB_zout.sw_len = 1;
++ TxIntrSB_zout.next = 0;
++ TxIntrSB_zout.buf = virt_to_phys(&zout_buffer[0]);
++ TxIntrSB_zout.command = (IO_FIELD(USB_SB_command, rem, 0) |
++ IO_STATE(USB_SB_command, tt, zout) |
++ IO_STATE(USB_SB_command, full, yes) |
++ IO_STATE(USB_SB_command, eot, yes) |
++ IO_STATE(USB_SB_command, eol, yes));
++
++ for (i = 0; i < (MAX_INTR_INTERVAL - 1); i++) {
++ CHECK_ALIGN(&TxIntrEPList[i]);
++ TxIntrEPList[i].hw_len = 0;
++ TxIntrEPList[i].command =
++ (IO_STATE(USB_EP_command, eof, yes) |
++ IO_STATE(USB_EP_command, enable, yes) |
++ IO_FIELD(USB_EP_command, epid, INVALID_EPID));
++ TxIntrEPList[i].sub = virt_to_phys(&TxIntrSB_zout);
++ TxIntrEPList[i].next = virt_to_phys(&TxIntrEPList[i + 1]);
++ }
++
++ /* Special handling of last descr in list, make list circular */
++ CHECK_ALIGN(&TxIntrEPList[i]);
++ TxIntrEPList[i].hw_len = 0;
++ TxIntrEPList[i].command =
++ (IO_STATE(USB_EP_command, eof, yes) |
++ IO_STATE(USB_EP_command, eol, yes) |
++ IO_STATE(USB_EP_command, enable, yes) |
++ IO_FIELD(USB_EP_command, epid, INVALID_EPID));
++ TxIntrEPList[i].sub = virt_to_phys(&TxIntrSB_zout);
++ TxIntrEPList[i].next = virt_to_phys(&TxIntrEPList[0]);
++
++ intr_dbg("Initiated Intr EP descriptor list\n");
++
++
++ /* Connect DMA 8 sub-channel 2 to first in list */
++ *R_DMA_CH8_SUB2_EP = virt_to_phys(&TxIntrEPList[0]);
++}
++
++static void tc_dma_init_tx_isoc_list(void) {
++ int i;
++
++ DBFENTER;
++
++ /* Read comment at zout_buffer declaration for an explanation to this. */
++ TxIsocSB_zout.sw_len = 1;
++ TxIsocSB_zout.next = 0;
++ TxIsocSB_zout.buf = virt_to_phys(&zout_buffer[0]);
++ TxIsocSB_zout.command = (IO_FIELD(USB_SB_command, rem, 0) |
++ IO_STATE(USB_SB_command, tt, zout) |
++ IO_STATE(USB_SB_command, full, yes) |
++ IO_STATE(USB_SB_command, eot, yes) |
++ IO_STATE(USB_SB_command, eol, yes));
++
++ /* The last isochronous EP descriptor is a dummy. */
++ for (i = 0; i < (NBR_OF_EPIDS - 1); i++) {
++ CHECK_ALIGN(&TxIsocEPList[i]);
++ TxIsocEPList[i].hw_len = 0;
++ TxIsocEPList[i].command = IO_FIELD(USB_EP_command, epid, i);
++ TxIsocEPList[i].sub = 0;
++ TxIsocEPList[i].next = virt_to_phys(&TxIsocEPList[i + 1]);
++ }
++
++ CHECK_ALIGN(&TxIsocEPList[i]);
++ TxIsocEPList[i].hw_len = 0;
++
++ /* Must enable the last EP descr to get eof interrupt. */
++ TxIsocEPList[i].command = (IO_STATE(USB_EP_command, enable, yes) |
++ IO_STATE(USB_EP_command, eof, yes) |
++ IO_STATE(USB_EP_command, eol, yes) |
++ IO_FIELD(USB_EP_command, epid, INVALID_EPID));
++ TxIsocEPList[i].sub = virt_to_phys(&TxIsocSB_zout);
++ TxIsocEPList[i].next = virt_to_phys(&TxIsocEPList[0]);
++
++ *R_DMA_CH8_SUB3_EP = virt_to_phys(&TxIsocEPList[0]);
++ *R_DMA_CH8_SUB3_CMD = IO_STATE(R_DMA_CH8_SUB3_CMD, cmd, start);
++}
++
++static int tc_dma_init(struct usb_hcd *hcd) {
++ tc_dma_init_rx_list();
++ tc_dma_init_tx_bulk_list();
++ tc_dma_init_tx_ctrl_list();
++ tc_dma_init_tx_intr_list();
++ tc_dma_init_tx_isoc_list();
++
++ if (cris_request_dma(USB_TX_DMA_NBR,
++ "ETRAX 100LX built-in USB (Tx)",
++ DMA_VERBOSE_ON_ERROR,
++ dma_usb)) {
++ err("Could not allocate DMA ch 8 for USB");
++ return -EBUSY;
++ }
++
++ if (cris_request_dma(USB_RX_DMA_NBR,
++ "ETRAX 100LX built-in USB (Rx)",
++ DMA_VERBOSE_ON_ERROR,
++ dma_usb)) {
++ err("Could not allocate DMA ch 9 for USB");
++ return -EBUSY;
++ }
++
++ *R_IRQ_MASK2_SET =
++ /* Note that these interrupts are not used. */
++ IO_STATE(R_IRQ_MASK2_SET, dma8_sub0_descr, set) |
++ /* Sub channel 1 (ctrl) descr. interrupts are used. */
++ IO_STATE(R_IRQ_MASK2_SET, dma8_sub1_descr, set) |
++ IO_STATE(R_IRQ_MASK2_SET, dma8_sub2_descr, set) |
++ /* Sub channel 3 (isoc) descr. interrupts are used. */
++ IO_STATE(R_IRQ_MASK2_SET, dma8_sub3_descr, set);
++
++ /* Note that the dma9_descr interrupt is not used. */
++ *R_IRQ_MASK2_SET =
++ IO_STATE(R_IRQ_MASK2_SET, dma9_eop, set) |
++ IO_STATE(R_IRQ_MASK2_SET, dma9_descr, set);
++
++ if (request_irq(ETRAX_USB_RX_IRQ, tc_dma_rx_interrupt, 0,
++ "ETRAX 100LX built-in USB (Rx)", hcd)) {
++ err("Could not allocate IRQ %d for USB", ETRAX_USB_RX_IRQ);
++ return -EBUSY;
++ }
++
++ if (request_irq(ETRAX_USB_TX_IRQ, tc_dma_tx_interrupt, 0,
++ "ETRAX 100LX built-in USB (Tx)", hcd)) {
++ err("Could not allocate IRQ %d for USB", ETRAX_USB_TX_IRQ);
++ return -EBUSY;
++ }
++
++ return 0;
++}
++
++static void tc_dma_destroy(void) {
++ free_irq(ETRAX_USB_RX_IRQ, NULL);
++ free_irq(ETRAX_USB_TX_IRQ, NULL);
++
++ cris_free_dma(USB_TX_DMA_NBR, "ETRAX 100LX built-in USB (Tx)");
++ cris_free_dma(USB_RX_DMA_NBR, "ETRAX 100LX built-in USB (Rx)");
++
++}
++
++static void tc_dma_link_intr_urb(struct urb *urb);
++
++/* Handle processing of Bulk, Ctrl and Intr queues */
++static void tc_dma_process_queue(int epid) {
++ struct urb *urb;
++ struct crisv10_urb_priv *urb_priv = urb->hcpriv;
++ unsigned long flags;
++ char toggle;
++
++ if(epid_state[epid].disabled) {
++ /* Don't process any URBs on a disabled endpoint */
++ return;
++ }
++
++ /* Do not disturb us while fiddling with EPs and epids */
++ local_irq_save(flags);
++
++ /* For bulk, Ctrl and Intr can we only have one URB active at a time for
++ a specific EP. */
++ if(activeUrbList[epid] != NULL) {
++ /* An URB is already active on EP, skip checking queue */
++ local_irq_restore(flags);
++ return;
++ }
++
++ urb = urb_list_first(epid);
++ if(urb == NULL) {
++ /* No URB waiting in EP queue. Nothing do to */
++ local_irq_restore(flags);
++ return;
++ }
++
++ urb_priv = urb->hcpriv;
++ ASSERT(urb_priv != NULL);
++ ASSERT(urb_priv->urb_state == NOT_STARTED);
++ ASSERT(!usb_pipeisoc(urb->pipe));
++
++ /* Remove this URB from the queue and move it to active */
++ activeUrbList[epid] = urb;
++ urb_list_del(urb, epid);
++
++ urb_priv->urb_state = STARTED;
++
++ /* Reset error counters (regardless of which direction this traffic is). */
++ etrax_epid_clear_error(epid);
++
++ /* Special handling of Intr EP lists */
++ if(usb_pipeint(urb->pipe)) {
++ tc_dma_link_intr_urb(urb);
++ local_irq_restore(flags);
++ return;
++ }
++
++ /* Software must preset the toggle bits for Bulk and Ctrl */
++ if(usb_pipecontrol(urb->pipe)) {
++ /* Toggle bits are initialized only during setup transaction in a
++ CTRL transfer */
++ etrax_epid_set_toggle(epid, 0, 0);
++ etrax_epid_set_toggle(epid, 1, 0);
++ } else {
++ toggle = usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe),
++ usb_pipeout(urb->pipe));
++ etrax_epid_set_toggle(epid, usb_pipeout(urb->pipe), toggle);
++ }
++
++ tc_dbg("Added SBs from (URB:0x%x %s %s) to epid %d: %s\n",
++ (unsigned int)urb, str_dir(urb->pipe), str_type(urb->pipe), epid,
++ sblist_to_str(urb_priv->first_sb));
++
++ /* We start the DMA sub channel without checking if it's running or not,
++ because:
++ 1) If it's already running, issuing the start command is a nop.
++ 2) We avoid a test-and-set race condition. */
++ switch(usb_pipetype(urb->pipe)) {
++ case PIPE_BULK:
++ /* Assert that the EP descriptor is disabled. */
++ ASSERT(!(TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)));
++
++ /* Set up and enable the EP descriptor. */
++ TxBulkEPList[epid].sub = virt_to_phys(urb_priv->first_sb);
++ TxBulkEPList[epid].hw_len = 0;
++ TxBulkEPList[epid].command |= IO_STATE(USB_EP_command, enable, yes);
++
++ /* Check if the dummy list is already with us (if several urbs were queued). */
++ if (usb_pipein(urb->pipe) && (TxBulkEPList[epid].next != virt_to_phys(&TxBulkDummyEPList[epid][0]))) {
++ tc_dbg("Inviting dummy list to the party for urb 0x%lx, epid %d",
++ (unsigned long)urb, epid);
++
++ /* We don't need to check if the DMA is at this EP or not before changing the
++ next pointer, since we will do it in one 32-bit write (EP descriptors are
++ 32-bit aligned). */
++ TxBulkEPList[epid].next = virt_to_phys(&TxBulkDummyEPList[epid][0]);
++ }
++
++ restart_dma8_sub0();
++
++ /* Update/restart the bulk start timer since we just started the channel.*/
++ mod_timer(&bulk_start_timer, jiffies + BULK_START_TIMER_INTERVAL);
++ /* Update/restart the bulk eot timer since we just inserted traffic. */
++ mod_timer(&bulk_eot_timer, jiffies + BULK_EOT_TIMER_INTERVAL);
++ break;
++ case PIPE_CONTROL:
++ /* Assert that the EP descriptor is disabled. */
++ ASSERT(!(TxCtrlEPList[epid].command & IO_MASK(USB_EP_command, enable)));
++
++ /* Set up and enable the EP descriptor. */
++ TxCtrlEPList[epid].sub = virt_to_phys(urb_priv->first_sb);
++ TxCtrlEPList[epid].hw_len = 0;
++ TxCtrlEPList[epid].command |= IO_STATE(USB_EP_command, enable, yes);
++
++ *R_DMA_CH8_SUB1_CMD = IO_STATE(R_DMA_CH8_SUB1_CMD, cmd, start);
++ break;
++ }
++ local_irq_restore(flags);
++}
++
++static void tc_dma_link_intr_urb(struct urb *urb) {
++ struct crisv10_urb_priv *urb_priv = urb->hcpriv;
++ volatile struct USB_EP_Desc *tmp_ep;
++ struct USB_EP_Desc *ep_desc;
++ int i = 0, epid;
++ int pool_idx = 0;
++
++ ASSERT(urb_priv != NULL);
++ epid = urb_priv->epid;
++ ASSERT(urb_priv->interval > 0);
++ ASSERT(urb_priv->intr_ep_pool_length > 0);
++
++ tmp_ep = &TxIntrEPList[0];
++
++ /* Only insert one EP descriptor in list for Out Intr URBs.
++ We can only handle Out Intr with interval of 128ms because
++ it's not possible to insert several Out Intr EPs because they
++ are not consumed by the DMA. */
++ if(usb_pipeout(urb->pipe)) {
++ ep_desc = urb_priv->intr_ep_pool[0];
++ ASSERT(ep_desc);
++ ep_desc->next = tmp_ep->next;
++ tmp_ep->next = virt_to_phys(ep_desc);
++ i++;
++ } else {
++ /* Loop through Intr EP descriptor list and insert EP for URB at
++ specified interval */
++ do {
++ /* Each EP descriptor with eof flag sat signals a new frame */
++ if (tmp_ep->command & IO_MASK(USB_EP_command, eof)) {
++ /* Insert a EP from URBs EP pool at correct interval */
++ if ((i % urb_priv->interval) == 0) {
++ ep_desc = urb_priv->intr_ep_pool[pool_idx];
++ ASSERT(ep_desc);
++ ep_desc->next = tmp_ep->next;
++ tmp_ep->next = virt_to_phys(ep_desc);
++ pool_idx++;
++ ASSERT(pool_idx <= urb_priv->intr_ep_pool_length);
+ }
++ i++;
++ }
++ tmp_ep = (struct USB_EP_Desc *)phys_to_virt(tmp_ep->next);
++ } while(tmp_ep != &TxIntrEPList[0]);
++ }
++
++ intr_dbg("Added SBs to intr epid %d: %s interval:%d (%d EP)\n", epid,
++ sblist_to_str(urb_priv->first_sb), urb_priv->interval, pool_idx);
++
++ /* We start the DMA sub channel without checking if it's running or not,
++ because:
++ 1) If it's already running, issuing the start command is a nop.
++ 2) We avoid a test-and-set race condition. */
++ *R_DMA_CH8_SUB2_CMD = IO_STATE(R_DMA_CH8_SUB2_CMD, cmd, start);
++}
++
++static void tc_dma_process_isoc_urb(struct urb *urb) {
++ unsigned long flags;
++ struct crisv10_urb_priv *urb_priv = urb->hcpriv;
++ int epid;
++
++ /* Do not disturb us while fiddling with EPs and epids */
++ local_irq_save(flags);
++
++ ASSERT(urb_priv);
++ ASSERT(urb_priv->first_sb);
++ epid = urb_priv->epid;
++
++ if(activeUrbList[epid] == NULL) {
++ /* EP is idle, so make this URB active */
++ activeUrbList[epid] = urb;
++ urb_list_del(urb, epid);
++ ASSERT(TxIsocEPList[epid].sub == 0);
++ ASSERT(!(TxIsocEPList[epid].command &
++ IO_STATE(USB_EP_command, enable, yes)));
++
++ /* Differentiate between In and Out Isoc. Because In SBs are not consumed*/
++ if(usb_pipein(urb->pipe)) {
++ /* Each EP for In Isoc will have only one SB descriptor, setup when
++ submitting the first active urb. We do it here by copying from URBs
++ pre-allocated SB. */
++ memcpy((void *)&(TxIsocSBList[epid]), urb_priv->first_sb,
++ sizeof(TxIsocSBList[epid]));
++ TxIsocEPList[epid].hw_len = 0;
++ TxIsocEPList[epid].sub = virt_to_phys(&(TxIsocSBList[epid]));
++ } else {
++ /* For Out Isoc we attach the pre-allocated list of SBs for the URB */
++ TxIsocEPList[epid].hw_len = 0;
++ TxIsocEPList[epid].sub = virt_to_phys(urb_priv->first_sb);
++
++ isoc_dbg("Attached first URB:0x%x[%d] to epid:%d first_sb:0x%x"
++ " last_sb::0x%x\n",
++ (unsigned int)urb, urb_priv->urb_num, epid,
++ (unsigned int)(urb_priv->first_sb),
++ (unsigned int)(urb_priv->last_sb));
++ }
++
++ if (urb->transfer_flags & URB_ISO_ASAP) {
++ /* The isoc transfer should be started as soon as possible. The
++ start_frame field is a return value if URB_ISO_ASAP was set. Comparing
++ R_USB_FM_NUMBER with a USB Chief trace shows that the first isoc IN
++ token is sent 2 frames later. I'm not sure how this affects usage of
++ the start_frame field by the device driver, or how it affects things
++ when USB_ISO_ASAP is not set, so therefore there's no compensation for
++ the 2 frame "lag" here. */
++ urb->start_frame = (*R_USB_FM_NUMBER & 0x7ff);
++ TxIsocEPList[epid].command |= IO_STATE(USB_EP_command, enable, yes);
++ urb_priv->urb_state = STARTED;
++ isoc_dbg("URB_ISO_ASAP set, urb->start_frame set to %d\n",
++ urb->start_frame);
++ } else {
++ /* Not started yet. */
++ urb_priv->urb_state = NOT_STARTED;
++ isoc_warn("urb_priv->urb_state set to NOT_STARTED for URB:0x%x\n",
++ (unsigned int)urb);
++ }
++
++ } else {
++ /* An URB is already active on the EP. Leave URB in queue and let
++ finish_isoc_urb process it after current active URB */
++ ASSERT(TxIsocEPList[epid].sub != 0);
++
++ if(usb_pipein(urb->pipe)) {
++ /* Because there already is a active In URB on this epid we do nothing
++ and the finish_isoc_urb() function will handle switching to next URB*/
++
++ } else { /* For Out Isoc, insert new URBs traffic last in SB-list. */
++ struct USB_SB_Desc *temp_sb_desc;
++
++ /* Set state STARTED to all Out Isoc URBs added to SB list because we
++ don't know how many of them that are finished before descr interrupt*/
++ urb_priv->urb_state = STARTED;
++
++ /* Find end of current SB list by looking for SB with eol flag sat */
++ temp_sb_desc = phys_to_virt(TxIsocEPList[epid].sub);
++ while ((temp_sb_desc->command & IO_MASK(USB_SB_command, eol)) !=
++ IO_STATE(USB_SB_command, eol, yes)) {
++ ASSERT(temp_sb_desc->next);
++ temp_sb_desc = phys_to_virt(temp_sb_desc->next);
++ }
++
++ isoc_dbg("Appended URB:0x%x[%d] (first:0x%x last:0x%x) to epid:%d"
++ " sub:0x%x eol:0x%x\n",
++ (unsigned int)urb, urb_priv->urb_num,
++ (unsigned int)(urb_priv->first_sb),
++ (unsigned int)(urb_priv->last_sb), epid,
++ (unsigned int)phys_to_virt(TxIsocEPList[epid].sub),
++ (unsigned int)temp_sb_desc);
++
++ /* Next pointer must be set before eol is removed. */
++ temp_sb_desc->next = virt_to_phys(urb_priv->first_sb);
++ /* Clear the previous end of list flag since there is a new in the
++ added SB descriptor list. */
++ temp_sb_desc->command &= ~IO_MASK(USB_SB_command, eol);
++
++ if (!(TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable))) {
++ __u32 epid_data;
++ /* 8.8.5 in Designer's Reference says we should check for and correct
++ any errors in the EP here. That should not be necessary if
++ epid_attn is handled correctly, so we assume all is ok. */
++ epid_data = etrax_epid_iso_get(epid);
++ if (IO_EXTRACT(R_USB_EPT_DATA, error_code, epid_data) !=
++ IO_STATE_VALUE(R_USB_EPT_DATA, error_code, no_error)) {
++ isoc_err("Disabled Isoc EP with error:%d on epid:%d when appending"
++ " URB:0x%x[%d]\n",
++ IO_EXTRACT(R_USB_EPT_DATA, error_code, epid_data), epid,
++ (unsigned int)urb, urb_priv->urb_num);
++ }
++
++ /* The SB list was exhausted. */
++ if (virt_to_phys(urb_priv->last_sb) != TxIsocEPList[epid].sub) {
++ /* The new sublist did not get processed before the EP was
++ disabled. Setup the EP again. */
++
++ if(virt_to_phys(temp_sb_desc) == TxIsocEPList[epid].sub) {
++ isoc_dbg("EP for epid:%d stoped at SB:0x%x before newly inserted"
++ ", restarting from this URBs SB:0x%x\n",
++ epid, (unsigned int)temp_sb_desc,
++ (unsigned int)(urb_priv->first_sb));
++ TxIsocEPList[epid].hw_len = 0;
++ TxIsocEPList[epid].sub = virt_to_phys(urb_priv->first_sb);
++ urb->start_frame = (*R_USB_FM_NUMBER & 0x7ff);
++ /* Enable the EP again so data gets processed this time */
++ TxIsocEPList[epid].command |=
++ IO_STATE(USB_EP_command, enable, yes);
++
++ } else {
++ /* The EP has been disabled but not at end this URB (god knows
++ where). This should generate an epid_attn so we should not be
++ here */
++ isoc_warn("EP was disabled on sb:0x%x before SB list for"
++ " URB:0x%x[%d] got processed\n",
++ (unsigned int)phys_to_virt(TxIsocEPList[epid].sub),
++ (unsigned int)urb, urb_priv->urb_num);
++ }
++ } else {
++ /* This might happend if we are slow on this function and isn't
++ an error. */
++ isoc_dbg("EP was disabled and finished with SBs from appended"
++ " URB:0x%x[%d]\n", (unsigned int)urb, urb_priv->urb_num);
++ }
++ }
++ }
++ }
++
++ /* Start the DMA sub channel */
++ *R_DMA_CH8_SUB3_CMD = IO_STATE(R_DMA_CH8_SUB3_CMD, cmd, start);
++
++ local_irq_restore(flags);
++}
++
++static void tc_dma_unlink_intr_urb(struct urb *urb) {
++ struct crisv10_urb_priv *urb_priv = urb->hcpriv;
++ volatile struct USB_EP_Desc *first_ep; /* First EP in the list. */
++ volatile struct USB_EP_Desc *curr_ep; /* Current EP, the iterator. */
++ volatile struct USB_EP_Desc *next_ep; /* The EP after current. */
++ volatile struct USB_EP_Desc *unlink_ep; /* The one we should remove from
++ the list. */
++ int count = 0;
++ volatile int timeout = 10000;
++ int epid;
++
++ /* Read 8.8.4 in Designer's Reference, "Removing an EP Descriptor from the
++ List". */
++ ASSERT(urb_priv);
++ ASSERT(urb_priv->intr_ep_pool_length > 0);
++ epid = urb_priv->epid;
++
++ /* First disable all Intr EPs belonging to epid for this URB */
++ first_ep = &TxIntrEPList[0];
++ curr_ep = first_ep;
++ do {
++ next_ep = (struct USB_EP_Desc *)phys_to_virt(curr_ep->next);
++ if (IO_EXTRACT(USB_EP_command, epid, next_ep->command) == epid) {
++ /* Disable EP */
++ next_ep->command &= ~IO_MASK(USB_EP_command, enable);
++ }
++ curr_ep = phys_to_virt(curr_ep->next);
++ } while (curr_ep != first_ep);
++
++
++ /* Now unlink all EPs belonging to this epid from Descr list */
++ first_ep = &TxIntrEPList[0];
++ curr_ep = first_ep;
++ do {
++ next_ep = (struct USB_EP_Desc *)phys_to_virt(curr_ep->next);
++ if (IO_EXTRACT(USB_EP_command, epid, next_ep->command) == epid) {
++ /* This is the one we should unlink. */
++ unlink_ep = next_ep;
++
++ /* Actually unlink the EP from the DMA list. */
++ curr_ep->next = unlink_ep->next;
++
++ /* Wait until the DMA is no longer at this descriptor. */
++ while((*R_DMA_CH8_SUB2_EP == virt_to_phys(unlink_ep)) &&
++ (timeout-- > 0));
++ if(timeout == 0) {
++ warn("Timeout while waiting for DMA-TX-Intr to leave unlink EP\n");
++ }
++
++ count++;
++ }
++ curr_ep = phys_to_virt(curr_ep->next);
++ } while (curr_ep != first_ep);
++
++ if(count != urb_priv->intr_ep_pool_length) {
++ intr_warn("Unlinked %d of %d Intr EPs for URB:0x%x[%d]\n", count,
++ urb_priv->intr_ep_pool_length, (unsigned int)urb,
++ urb_priv->urb_num);
++ } else {
++ intr_dbg("Unlinked %d of %d interrupt EPs for URB:0x%x\n", count,
++ urb_priv->intr_ep_pool_length, (unsigned int)urb);
++ }
++}
++
++static void check_finished_bulk_tx_epids(struct usb_hcd *hcd,
++ int timer) {
++ unsigned long flags;
++ int epid;
++ struct urb *urb;
++ struct crisv10_urb_priv * urb_priv;
++ __u32 epid_data;
++
++ /* Protect TxEPList */
++ local_irq_save(flags);
++
++ for (epid = 0; epid < NBR_OF_EPIDS; epid++) {
++ /* A finished EP descriptor is disabled and has a valid sub pointer */
++ if (!(TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)) &&
++ (TxBulkEPList[epid].sub != 0)) {
++
++ /* Get the active URB for this epid */
++ urb = activeUrbList[epid];
++ /* Sanity checks */
++ ASSERT(urb);
++ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ ASSERT(urb_priv);
++
++ /* Only handle finished out Bulk EPs here,
++ and let RX interrupt take care of the rest */
++ if(!epid_out_traffic(epid)) {
++ continue;
++ }
++
++ if(timer) {
++ tc_warn("Found finished %s Bulk epid:%d URB:0x%x[%d] from timeout\n",
++ epid_out_traffic(epid) ? "Out" : "In", epid, (unsigned int)urb,
++ urb_priv->urb_num);
++ } else {
++ tc_dbg("Found finished %s Bulk epid:%d URB:0x%x[%d] from interrupt\n",
++ epid_out_traffic(epid) ? "Out" : "In", epid, (unsigned int)urb,
++ urb_priv->urb_num);
++ }
++
++ if(urb_priv->urb_state == UNLINK) {
++ /* This Bulk URB is requested to be unlinked, that means that the EP
++ has been disabled and we might not have sent all data */
++ tc_finish_urb(hcd, urb, urb->status);
++ continue;
++ }
++
++ ASSERT(urb_priv->urb_state == STARTED);
++ if (phys_to_virt(TxBulkEPList[epid].sub) != urb_priv->last_sb) {
++ tc_err("Endpoint got disabled before reaching last sb\n");
++ }
++
++ epid_data = etrax_epid_get(epid);
++ if (IO_EXTRACT(R_USB_EPT_DATA, error_code, epid_data) ==
++ IO_STATE_VALUE(R_USB_EPT_DATA, error_code, no_error)) {
++ /* This means that the endpoint has no error, is disabled
++ and had inserted traffic, i.e. transfer successfully completed. */
++ tc_finish_urb(hcd, urb, 0);
++ } else {
++ /* Shouldn't happen. We expect errors to be caught by epid
++ attention. */
++ tc_err("Found disabled bulk EP desc (epid:%d error:%d)\n",
++ epid, IO_EXTRACT(R_USB_EPT_DATA, error_code, epid_data));
++ }
++ } else {
++ tc_dbg("Ignoring In Bulk epid:%d, let RX interrupt handle it\n", epid);
++ }
++ }
++
++ local_irq_restore(flags);
++}
++
++static void check_finished_ctrl_tx_epids(struct usb_hcd *hcd) {
++ unsigned long flags;
++ int epid;
++ struct urb *urb;
++ struct crisv10_urb_priv * urb_priv;
++ __u32 epid_data;
++
++ /* Protect TxEPList */
++ local_irq_save(flags);
++
++ for (epid = 0; epid < NBR_OF_EPIDS; epid++) {
++ if(epid == DUMMY_EPID)
++ continue;
++
++ /* A finished EP descriptor is disabled and has a valid sub pointer */
++ if (!(TxCtrlEPList[epid].command & IO_MASK(USB_EP_command, enable)) &&
++ (TxCtrlEPList[epid].sub != 0)) {
++
++ /* Get the active URB for this epid */
++ urb = activeUrbList[epid];
++
++ if(urb == NULL) {
++ tc_warn("Found finished Ctrl epid:%d with no active URB\n", epid);
++ continue;
++ }
++
++ /* Sanity checks */
++ ASSERT(usb_pipein(urb->pipe));
++ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ ASSERT(urb_priv);
++ if (phys_to_virt(TxCtrlEPList[epid].sub) != urb_priv->last_sb) {
++ tc_err("Endpoint got disabled before reaching last sb\n");
++ }
++
++ epid_data = etrax_epid_get(epid);
++ if (IO_EXTRACT(R_USB_EPT_DATA, error_code, epid_data) ==
++ IO_STATE_VALUE(R_USB_EPT_DATA, error_code, no_error)) {
++ /* This means that the endpoint has no error, is disabled
++ and had inserted traffic, i.e. transfer successfully completed. */
++
++ /* Check if RX-interrupt for In Ctrl has been processed before
++ finishing the URB */
++ if(urb_priv->ctrl_rx_done) {
++ tc_dbg("Finishing In Ctrl URB:0x%x[%d] in tx_interrupt\n",
++ (unsigned int)urb, urb_priv->urb_num);
++ tc_finish_urb(hcd, urb, 0);
++ } else {
++ /* If we get zout descriptor interrupt before RX was done for a
++ In Ctrl transfer, then we flag that and it will be finished
++ in the RX-Interrupt */
++ urb_priv->ctrl_zout_done = 1;
++ tc_dbg("Got zout descr interrupt before RX interrupt\n");
++ }
++ } else {
++ /* Shouldn't happen. We expect errors to be caught by epid
++ attention. */
++ tc_err("Found disabled Ctrl EP desc (epid:%d URB:0x%x[%d]) error_code:%d\n", epid, (unsigned int)urb, urb_priv->urb_num, IO_EXTRACT(R_USB_EPT_DATA, error_code, epid_data));
++ __dump_ep_desc(&(TxCtrlEPList[epid]));
++ __dump_ept_data(epid);
++ }
++ }
++ }
++ local_irq_restore(flags);
++}
++
++/* This function goes through all epids that are setup for Out Isoc transfers
++ and marks (isoc_out_done) all queued URBs that the DMA has finished
++ transfer for.
++ No URB completetion is done here to make interrupt routine return quickly.
++ URBs are completed later with help of complete_isoc_bottom_half() that
++ becomes schedules when this functions is finished. */
++static void check_finished_isoc_tx_epids(void) {
++ unsigned long flags;
++ int epid;
++ struct urb *urb;
++ struct crisv10_urb_priv * urb_priv;
++ struct USB_SB_Desc* sb_desc;
++ int epid_done;
++
++ /* Protect TxIsocEPList */
++ local_irq_save(flags);
++
++ for (epid = 0; epid < NBR_OF_EPIDS; epid++) {
++ if (TxIsocEPList[epid].sub == 0 || epid == INVALID_EPID ||
++ !epid_out_traffic(epid)) {
++ /* Nothing here to see. */
++ continue;
++ }
++ ASSERT(epid_inuse(epid));
++ ASSERT(epid_isoc(epid));
++
++ sb_desc = phys_to_virt(TxIsocEPList[epid].sub);
++ /* Find the last descriptor of the currently active URB for this ep.
++ This is the first descriptor in the sub list marked for a descriptor
++ interrupt. */
++ while (sb_desc && !IO_EXTRACT(USB_SB_command, intr, sb_desc->command)) {
++ sb_desc = sb_desc->next ? phys_to_virt(sb_desc->next) : 0;
++ }
++ ASSERT(sb_desc);
++
++ isoc_dbg("Descr IRQ checking epid:%d sub:0x%x intr:0x%x\n",
++ epid, (unsigned int)phys_to_virt(TxIsocEPList[epid].sub),
++ (unsigned int)sb_desc);
++
++ urb = activeUrbList[epid];
++ if(urb == NULL) {
++ isoc_err("Isoc Descr irq on epid:%d with no active URB\n", epid);
++ continue;
++ }
++
++ epid_done = 0;
++ while(urb && !epid_done) {
++ /* Sanity check. */
++ ASSERT(usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS);
++ ASSERT(usb_pipeout(urb->pipe));
++
++ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ ASSERT(urb_priv);
++ ASSERT(urb_priv->urb_state == STARTED ||
++ urb_priv->urb_state == UNLINK);
++
++ if (sb_desc != urb_priv->last_sb) {
++ /* This urb has been sent. */
++ urb_priv->isoc_out_done = 1;
++
++ } else { /* Found URB that has last_sb as the interrupt reason */
++
++ /* Check if EP has been disabled, meaning that all transfers are done*/
++ if(!(TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable))) {
++ ASSERT((sb_desc->command & IO_MASK(USB_SB_command, eol)) ==
++ IO_STATE(USB_SB_command, eol, yes));
++ ASSERT(sb_desc->next == 0);
++ urb_priv->isoc_out_done = 1;
++ } else {
++ isoc_dbg("Skipping URB:0x%x[%d] because EP not disabled yet\n",
++ (unsigned int)urb, urb_priv->urb_num);
++ }
++ /* Stop looking any further in queue */
++ epid_done = 1;
++ }
++
++ if (!epid_done) {
++ if(urb == activeUrbList[epid]) {
++ urb = urb_list_first(epid);
++ } else {
++ urb = urb_list_next(urb, epid);
++ }
++ }
++ } /* END: while(urb && !epid_done) */
++ }
++
++ local_irq_restore(flags);
++}
++
++
++/* This is where the Out Isoc URBs are realy completed. This function is
++ scheduled from tc_dma_tx_interrupt() when one or more Out Isoc transfers
++ are done. This functions completes all URBs earlier marked with
++ isoc_out_done by fast interrupt routine check_finished_isoc_tx_epids() */
++
++static void complete_isoc_bottom_half(void *data) {
++ struct crisv10_isoc_complete_data *comp_data;
++ struct usb_iso_packet_descriptor *packet;
++ struct crisv10_urb_priv * urb_priv;
++ unsigned long flags;
++ struct urb* urb;
++ int epid_done;
++ int epid;
++ int i;
++
++ comp_data = (struct crisv10_isoc_complete_data*)data;
++
++ local_irq_save(flags);
++
++ for (epid = 0; epid < NBR_OF_EPIDS - 1; epid++) {
++ if(!epid_inuse(epid) || !epid_isoc(epid) || !epid_out_traffic(epid) || epid == DUMMY_EPID) {
++ /* Only check valid Out Isoc epids */
++ continue;
++ }
++
++ isoc_dbg("Isoc bottom-half checking epid:%d, sub:0x%x\n", epid,
++ (unsigned int)phys_to_virt(TxIsocEPList[epid].sub));
++
++ /* The descriptor interrupt handler has marked all transmitted Out Isoc
++ URBs with isoc_out_done. Now we traverse all epids and for all that
++ have out Isoc traffic we traverse its URB list and complete the
++ transmitted URBs. */
++ epid_done = 0;
++ while (!epid_done) {
++
++ /* Get the active urb (if any) */
++ urb = activeUrbList[epid];
++ if (urb == 0) {
++ isoc_dbg("No active URB on epid:%d anymore\n", epid);
++ epid_done = 1;
++ continue;
++ }
++
++ /* Sanity check. */
++ ASSERT(usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS);
++ ASSERT(usb_pipeout(urb->pipe));
++
++ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ ASSERT(urb_priv);
++
++ if (!(urb_priv->isoc_out_done)) {
++ /* We have reached URB that isn't flaged done yet, stop traversing. */
++ isoc_dbg("Stoped traversing Out Isoc URBs on epid:%d"
++ " before not yet flaged URB:0x%x[%d]\n",
++ epid, (unsigned int)urb, urb_priv->urb_num);
++ epid_done = 1;
++ continue;
++ }
++
++ /* This urb has been sent. */
++ isoc_dbg("Found URB:0x%x[%d] that is flaged isoc_out_done\n",
++ (unsigned int)urb, urb_priv->urb_num);
++
++ /* Set ok on transfered packets for this URB and finish it */
++ for (i = 0; i < urb->number_of_packets; i++) {
++ packet = &urb->iso_frame_desc[i];
++ packet->status = 0;
++ packet->actual_length = packet->length;
++ }
++ urb_priv->isoc_packet_counter = urb->number_of_packets;
++ tc_finish_urb(comp_data->hcd, urb, 0);
++
++ } /* END: while(!epid_done) */
++ } /* END: for(epid...) */
++
++ local_irq_restore(flags);
++ kmem_cache_free(isoc_compl_cache, comp_data);
++}
++
++
++static void check_finished_intr_tx_epids(struct usb_hcd *hcd) {
++ unsigned long flags;
++ int epid;
++ struct urb *urb;
++ struct crisv10_urb_priv * urb_priv;
++ volatile struct USB_EP_Desc *curr_ep; /* Current EP, the iterator. */
++ volatile struct USB_EP_Desc *next_ep; /* The EP after current. */
++
++ /* Protect TxintrEPList */
++ local_irq_save(flags);
++
++ for (epid = 0; epid < NBR_OF_EPIDS; epid++) {
++ if(!epid_inuse(epid) || !epid_intr(epid) || !epid_out_traffic(epid)) {
++ /* Nothing to see on this epid. Only check valid Out Intr epids */
++ continue;
++ }
++
++ urb = activeUrbList[epid];
++ if(urb == 0) {
++ intr_warn("Found Out Intr epid:%d with no active URB\n", epid);
++ continue;
++ }
++
++ /* Sanity check. */
++ ASSERT(usb_pipetype(urb->pipe) == PIPE_INTERRUPT);
++ ASSERT(usb_pipeout(urb->pipe));
++
++ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ ASSERT(urb_priv);
++
++ /* Go through EPs between first and second sof-EP. It's here Out Intr EPs
++ are inserted.*/
++ curr_ep = &TxIntrEPList[0];
++ do {
++ next_ep = (struct USB_EP_Desc *)phys_to_virt(curr_ep->next);
++ if(next_ep == urb_priv->intr_ep_pool[0]) {
++ /* We found the Out Intr EP for this epid */
++
++ /* Disable it so it doesn't get processed again */
++ next_ep->command &= ~IO_MASK(USB_EP_command, enable);
++
++ /* Finish the active Out Intr URB with status OK */
++ tc_finish_urb(hcd, urb, 0);
++ }
++ curr_ep = phys_to_virt(curr_ep->next);
++ } while (curr_ep != &TxIntrEPList[1]);
++
++ }
++ local_irq_restore(flags);
++}
++
++/* Interrupt handler for DMA8/IRQ24 with subchannels (called from hardware intr) */
++static irqreturn_t tc_dma_tx_interrupt(int irq, void *vhc) {
++ struct usb_hcd *hcd = (struct usb_hcd*)vhc;
++ ASSERT(hcd);
++
++ if (*R_IRQ_READ2 & IO_MASK(R_IRQ_READ2, dma8_sub0_descr)) {
++ /* Clear this interrupt */
++ *R_DMA_CH8_SUB0_CLR_INTR = IO_STATE(R_DMA_CH8_SUB0_CLR_INTR, clr_descr, do);
++ restart_dma8_sub0();
++ }
++
++ if (*R_IRQ_READ2 & IO_MASK(R_IRQ_READ2, dma8_sub1_descr)) {
++ /* Clear this interrupt */
++ *R_DMA_CH8_SUB1_CLR_INTR = IO_STATE(R_DMA_CH8_SUB1_CLR_INTR, clr_descr, do);
++ check_finished_ctrl_tx_epids(hcd);
++ }
++
++ if (*R_IRQ_READ2 & IO_MASK(R_IRQ_READ2, dma8_sub2_descr)) {
++ /* Clear this interrupt */
++ *R_DMA_CH8_SUB2_CLR_INTR = IO_STATE(R_DMA_CH8_SUB2_CLR_INTR, clr_descr, do);
++ check_finished_intr_tx_epids(hcd);
++ }
++
++ if (*R_IRQ_READ2 & IO_MASK(R_IRQ_READ2, dma8_sub3_descr)) {
++ struct crisv10_isoc_complete_data* comp_data;
++
++ /* Flag done Out Isoc for later completion */
++ check_finished_isoc_tx_epids();
++
++ /* Clear this interrupt */
++ *R_DMA_CH8_SUB3_CLR_INTR = IO_STATE(R_DMA_CH8_SUB3_CLR_INTR, clr_descr, do);
++ /* Schedule bottom half of Out Isoc completion function. This function
++ finishes the URBs marked with isoc_out_done */
++ comp_data = (struct crisv10_isoc_complete_data*)
++ kmem_cache_alloc(isoc_compl_cache, SLAB_ATOMIC);
++ ASSERT(comp_data != NULL);
++ comp_data ->hcd = hcd;
++
++ INIT_WORK(&comp_data->usb_bh, complete_isoc_bottom_half, comp_data);
++ schedule_work(&comp_data->usb_bh);
++ }
++
++ return IRQ_HANDLED;
++}
++
++/* Interrupt handler for DMA9/IRQ25 (called from hardware intr) */
++static irqreturn_t tc_dma_rx_interrupt(int irq, void *vhc) {
++ unsigned long flags;
++ struct urb *urb;
++ struct usb_hcd *hcd = (struct usb_hcd*)vhc;
++ struct crisv10_urb_priv *urb_priv;
++ int epid = 0;
++ int real_error;
++
++ ASSERT(hcd);
++
++ /* Clear this interrupt. */
++ *R_DMA_CH9_CLR_INTR = IO_STATE(R_DMA_CH9_CLR_INTR, clr_eop, do);
++
++ /* Custom clear interrupt for this interrupt */
++ /* The reason we cli here is that we call the driver's callback functions. */
++ local_irq_save(flags);
++
++ /* Note that this while loop assumes that all packets span only
++ one rx descriptor. */
++ while(myNextRxDesc->status & IO_MASK(USB_IN_status, eop)) {
++ epid = IO_EXTRACT(USB_IN_status, epid, myNextRxDesc->status);
++ /* Get the active URB for this epid */
++ urb = activeUrbList[epid];
++
++ ASSERT(epid_inuse(epid));
++ if (!urb) {
++ dma_err("No urb for epid %d in rx interrupt\n", epid);
++ goto skip_out;
++ }
++
++ /* Check if any errors on epid */
++ real_error = 0;
++ if (myNextRxDesc->status & IO_MASK(USB_IN_status, error)) {
++ __u32 r_usb_ept_data;
++
++ if (usb_pipeisoc(urb->pipe)) {
++ r_usb_ept_data = etrax_epid_iso_get(epid);
++ if((r_usb_ept_data & IO_MASK(R_USB_EPT_DATA_ISO, valid)) &&
++ (IO_EXTRACT(R_USB_EPT_DATA_ISO, error_code, r_usb_ept_data) == 0) &&
++ (myNextRxDesc->status & IO_MASK(USB_IN_status, nodata))) {
++ /* Not an error, just a failure to receive an expected iso
++ in packet in this frame. This is not documented
++ in the designers reference. Continue processing.
++ */
++ } else real_error = 1;
++ } else real_error = 1;
++ }
++
++ if(real_error) {
++ dma_err("Error in RX descr on epid:%d for URB 0x%x",
++ epid, (unsigned int)urb);
++ dump_ept_data(epid);
++ dump_in_desc(myNextRxDesc);
++ goto skip_out;
++ }
++
++ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ ASSERT(urb_priv);
++ ASSERT(urb_priv->urb_state == STARTED ||
++ urb_priv->urb_state == UNLINK);
++
++ if ((usb_pipetype(urb->pipe) == PIPE_BULK) ||
++ (usb_pipetype(urb->pipe) == PIPE_CONTROL) ||
++ (usb_pipetype(urb->pipe) == PIPE_INTERRUPT)) {
++
++ /* We get nodata for empty data transactions, and the rx descriptor's
++ hw_len field is not valid in that case. No data to copy in other
++ words. */
++ if (myNextRxDesc->status & IO_MASK(USB_IN_status, nodata)) {
++ /* No data to copy */
++ } else {
++ /*
++ dma_dbg("Processing RX for URB:0x%x epid:%d (data:%d ofs:%d)\n",
++ (unsigned int)urb, epid, myNextRxDesc->hw_len,
++ urb_priv->rx_offset);
++ */
++ /* Only copy data if URB isn't flaged to be unlinked*/
++ if(urb_priv->urb_state != UNLINK) {
++ /* Make sure the data fits in the buffer. */
++ if(urb_priv->rx_offset + myNextRxDesc->hw_len
++ <= urb->transfer_buffer_length) {
++
++ /* Copy the data to URBs buffer */
++ memcpy(urb->transfer_buffer + urb_priv->rx_offset,
++ phys_to_virt(myNextRxDesc->buf), myNextRxDesc->hw_len);
++ urb_priv->rx_offset += myNextRxDesc->hw_len;
++ } else {
++ /* Signal overflow when returning URB */
++ urb->status = -EOVERFLOW;
++ tc_finish_urb_later(hcd, urb, urb->status);
++ }
++ }
++ }
++
++ /* Check if it was the last packet in the transfer */
++ if (myNextRxDesc->status & IO_MASK(USB_IN_status, eot)) {
++ /* Special handling for In Ctrl URBs. */
++ if(usb_pipecontrol(urb->pipe) && usb_pipein(urb->pipe) &&
++ !(urb_priv->ctrl_zout_done)) {
++ /* Flag that RX part of Ctrl transfer is done. Because zout descr
++ interrupt hasn't happend yet will the URB be finished in the
++ TX-Interrupt. */
++ urb_priv->ctrl_rx_done = 1;
++ tc_dbg("Not finishing In Ctrl URB:0x%x from rx_interrupt, waiting"
++ " for zout\n", (unsigned int)urb);
++ } else {
++ tc_finish_urb(hcd, urb, 0);
++ }
++ }
++ } else { /* ISOC RX */
++ /*
++ isoc_dbg("Processing RX for epid:%d (URB:0x%x) ISOC pipe\n",
++ epid, (unsigned int)urb);
++ */
++
++ struct usb_iso_packet_descriptor *packet;
++
++ if (urb_priv->urb_state == UNLINK) {
++ isoc_warn("Ignoring Isoc Rx data for urb being unlinked.\n");
++ goto skip_out;
++ } else if (urb_priv->urb_state == NOT_STARTED) {
++ isoc_err("What? Got Rx data for Isoc urb that isn't started?\n");
++ goto skip_out;
++ }
++
++ packet = &urb->iso_frame_desc[urb_priv->isoc_packet_counter];
++ ASSERT(packet);
++ packet->status = 0;
++
++ if (myNextRxDesc->status & IO_MASK(USB_IN_status, nodata)) {
++ /* We get nodata for empty data transactions, and the rx descriptor's
++ hw_len field is not valid in that case. We copy 0 bytes however to
++ stay in synch. */
++ packet->actual_length = 0;
++ } else {
++ packet->actual_length = myNextRxDesc->hw_len;
++ /* Make sure the data fits in the buffer. */
++ ASSERT(packet->actual_length <= packet->length);
++ memcpy(urb->transfer_buffer + packet->offset,
++ phys_to_virt(myNextRxDesc->buf), packet->actual_length);
++ if(packet->actual_length > 0)
++ isoc_dbg("Copied %d bytes, packet %d for URB:0x%x[%d]\n",
++ packet->actual_length, urb_priv->isoc_packet_counter,
++ (unsigned int)urb, urb_priv->urb_num);
++ }
++
++ /* Increment the packet counter. */
++ urb_priv->isoc_packet_counter++;
++
++ /* Note that we don't care about the eot field in the rx descriptor's
++ status. It will always be set for isoc traffic. */
++ if (urb->number_of_packets == urb_priv->isoc_packet_counter) {
++ /* Complete the urb with status OK. */
++ tc_finish_urb(hcd, urb, 0);
++ }
++ }
++
++ skip_out:
++ myNextRxDesc->status = 0;
++ myNextRxDesc->command |= IO_MASK(USB_IN_command, eol);
++ myLastRxDesc->command &= ~IO_MASK(USB_IN_command, eol);
++ myLastRxDesc = myNextRxDesc;
++ myNextRxDesc = phys_to_virt(myNextRxDesc->next);
++ flush_etrax_cache();
++ *R_DMA_CH9_CMD = IO_STATE(R_DMA_CH9_CMD, cmd, restart);
++ }
++
++ local_irq_restore(flags);
++
++ return IRQ_HANDLED;
++}
++
++static void tc_bulk_start_timer_func(unsigned long dummy) {
++ /* We might enable an EP descriptor behind the current DMA position when
++ it's about to decide that there are no more bulk traffic and it should
++ stop the bulk channel.
++ Therefore we periodically check if the bulk channel is stopped and there
++ is an enabled bulk EP descriptor, in which case we start the bulk
++ channel. */
++
++ if (!(*R_DMA_CH8_SUB0_CMD & IO_MASK(R_DMA_CH8_SUB0_CMD, cmd))) {
++ int epid;
++
++ timer_dbg("bulk_start_timer: Bulk DMA channel not running.\n");
++
++ for (epid = 0; epid < NBR_OF_EPIDS; epid++) {
++ if (TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
++ timer_warn("Found enabled EP for epid %d, starting bulk channel.\n",
++ epid);
++ restart_dma8_sub0();
++
++ /* Restart the bulk eot timer since we just started the bulk channel.*/
++ mod_timer(&bulk_eot_timer, jiffies + BULK_EOT_TIMER_INTERVAL);
++
++ /* No need to search any further. */
++ break;
++ }
++ }
++ } else {
++ timer_dbg("bulk_start_timer: Bulk DMA channel running.\n");
++ }
++}
++
++static void tc_bulk_eot_timer_func(unsigned long dummy) {
++ struct usb_hcd *hcd = (struct usb_hcd*)dummy;
++ ASSERT(hcd);
++ /* Because of a race condition in the top half, we might miss a bulk eot.
++ This timer "simulates" a bulk eot if we don't get one for a while,
++ hopefully correcting the situation. */
++ timer_dbg("bulk_eot_timer timed out.\n");
++ check_finished_bulk_tx_epids(hcd, 1);
++}
++
++
++/*************************************************************/
++/*************************************************************/
++/* Device driver block */
++/*************************************************************/
++/*************************************************************/
++
++/* Forward declarations for device driver functions */
++static int devdrv_hcd_probe(struct device *);
++static int devdrv_hcd_remove(struct device *);
++#ifdef CONFIG_PM
++static int devdrv_hcd_suspend(struct device *, u32, u32);
++static int devdrv_hcd_resume(struct device *, u32);
++#endif /* CONFIG_PM */
++
++/* the device */
++static struct platform_device *devdrv_hc_platform_device;
++
++/* device driver interface */
++static struct device_driver devdrv_hc_device_driver = {
++ .name = (char *) hc_name,
++ .bus = &platform_bus_type,
++
++ .probe = devdrv_hcd_probe,
++ .remove = devdrv_hcd_remove,
++
++#ifdef CONFIG_PM
++ .suspend = devdrv_hcd_suspend,
++ .resume = devdrv_hcd_resume,
++#endif /* CONFIG_PM */
++};
+
+- CHECK_ALIGN(&TxIsocEPList[i]);
+- TxIsocEPList[i].hw_len = 0;
+-
+- /* Must enable the last EP descr to get eof interrupt. */
+- TxIsocEPList[i].command = (IO_STATE(USB_EP_command, enable, yes) |
+- IO_STATE(USB_EP_command, eof, yes) |
+- IO_STATE(USB_EP_command, eol, yes) |
+- IO_FIELD(USB_EP_command, epid, INVALID_EPID));
+- TxIsocEPList[i].sub = virt_to_phys(&TxIsocSB_zout);
+- TxIsocEPList[i].next = virt_to_phys(&TxIsocEPList[0]);
+-
+- *R_DMA_CH8_SUB3_EP = virt_to_phys(&TxIsocEPList[0]);
+- *R_DMA_CH8_SUB3_CMD = IO_STATE(R_DMA_CH8_SUB3_CMD, cmd, start);
+-
+- DBFEXIT;
+-}
+-
+-static void etrax_usb_unlink_intr_urb(struct urb *urb)
++/* initialize the host controller and driver */
++static int __init_or_module devdrv_hcd_probe(struct device *dev)
+ {
+- volatile USB_EP_Desc_t *first_ep; /* First EP in the list. */
+- volatile USB_EP_Desc_t *curr_ep; /* Current EP, the iterator. */
+- volatile USB_EP_Desc_t *next_ep; /* The EP after current. */
+- volatile USB_EP_Desc_t *unlink_ep; /* The one we should remove from the list. */
+-
+- int epid;
+-
+- /* Read 8.8.4 in Designer's Reference, "Removing an EP Descriptor from the List". */
+-
+- DBFENTER;
+-
+- epid = ((etrax_urb_priv_t *)urb->hcpriv)->epid;
+-
+- first_ep = &TxIntrEPList[0];
+- curr_ep = first_ep;
+-
+-
+- /* Note that this loop removes all EP descriptors with this epid. This assumes
+- that all EP descriptors belong to the one and only urb for this epid. */
+-
+- do {
+- next_ep = (USB_EP_Desc_t *)phys_to_virt(curr_ep->next);
+-
+- if (IO_EXTRACT(USB_EP_command, epid, next_ep->command) == epid) {
+-
+- dbg_intr("Found EP to unlink for epid %d", epid);
+-
+- /* This is the one we should unlink. */
+- unlink_ep = next_ep;
+-
+- /* Actually unlink the EP from the DMA list. */
+- curr_ep->next = unlink_ep->next;
+-
+- /* Wait until the DMA is no longer at this descriptor. */
+- while (*R_DMA_CH8_SUB2_EP == virt_to_phys(unlink_ep));
++ struct usb_hcd *hcd;
++ struct crisv10_hcd *crisv10_hcd;
++ int retval;
++
++ /* Check DMA burst length */
++ if(IO_EXTRACT(R_BUS_CONFIG, dma_burst, *R_BUS_CONFIG) !=
++ IO_STATE(R_BUS_CONFIG, dma_burst, burst32)) {
++ devdrv_err("Invalid DMA burst length in Etrax 100LX,"
++ " needs to be 32\n");
++ return -EPERM;
++ }
++
++ hcd = usb_create_hcd(&crisv10_hc_driver, dev, dev->bus_id);
++ if (!hcd)
++ return -ENOMEM;
++
++ crisv10_hcd = hcd_to_crisv10_hcd(hcd);
++ spin_lock_init(&crisv10_hcd->lock);
++ crisv10_hcd->num_ports = num_ports();
++ crisv10_hcd->running = 0;
++
++ dev_set_drvdata(dev, crisv10_hcd);
++
++ devdrv_dbg("ETRAX USB IRQs HC:%d RX:%d TX:%d\n", ETRAX_USB_HC_IRQ,
++ ETRAX_USB_RX_IRQ, ETRAX_USB_TX_IRQ);
++
++ /* Print out chip version read from registers */
++ int rev_maj = *R_USB_REVISION & IO_MASK(R_USB_REVISION, major);
++ int rev_min = *R_USB_REVISION & IO_MASK(R_USB_REVISION, minor);
++ if(rev_min == 0) {
++ devdrv_info("Etrax 100LX USB Revision %d v1,2\n", rev_maj);
++ } else {
++ devdrv_info("Etrax 100LX USB Revision %d v%d\n", rev_maj, rev_min);
++ }
++
++ devdrv_info("Bulk timer interval, start:%d eot:%d\n",
++ BULK_START_TIMER_INTERVAL,
++ BULK_EOT_TIMER_INTERVAL);
++
++
++ /* Init root hub data structures */
++ if(rh_init()) {
++ devdrv_err("Failed init data for Root Hub\n");
++ retval = -ENOMEM;
++ }
++
++ if(port_in_use(0)) {
++ if (cris_request_io_interface(if_usb_1, "ETRAX100LX USB-HCD")) {
++ printk(KERN_CRIT "usb-host: request IO interface usb1 failed");
++ retval = -EBUSY;
++ goto out;
++ }
++ devdrv_info("Claimed interface for USB physical port 1\n");
++ }
++ if(port_in_use(1)) {
++ if (cris_request_io_interface(if_usb_2, "ETRAX100LX USB-HCD")) {
++ /* Free first interface if second failed to be claimed */
++ if(port_in_use(0)) {
++ cris_free_io_interface(if_usb_1);
++ }
++ printk(KERN_CRIT "usb-host: request IO interface usb2 failed");
++ retval = -EBUSY;
++ goto out;
++ }
++ devdrv_info("Claimed interface for USB physical port 2\n");
++ }
++
++ /* Init transfer controller structs and locks */
++ if((retval = tc_init(hcd)) != 0) {
++ goto out;
++ }
++
++ /* Attach interrupt functions for DMA and init DMA controller */
++ if((retval = tc_dma_init(hcd)) != 0) {
++ goto out;
++ }
++
++ /* Attach the top IRQ handler for USB controller interrupts */
++ if (request_irq(ETRAX_USB_HC_IRQ, crisv10_hcd_top_irq, 0,
++ "ETRAX 100LX built-in USB (HC)", hcd)) {
++ err("Could not allocate IRQ %d for USB", ETRAX_USB_HC_IRQ);
++ retval = -EBUSY;
++ goto out;
++ }
++
++ /* iso_eof is only enabled when isoc traffic is running. */
++ *R_USB_IRQ_MASK_SET =
++ /* IO_STATE(R_USB_IRQ_MASK_SET, iso_eof, set) | */
++ IO_STATE(R_USB_IRQ_MASK_SET, bulk_eot, set) |
++ IO_STATE(R_USB_IRQ_MASK_SET, epid_attn, set) |
++ IO_STATE(R_USB_IRQ_MASK_SET, port_status, set) |
++ IO_STATE(R_USB_IRQ_MASK_SET, ctl_status, set);
++
++
++ crisv10_ready_wait();
++ /* Reset the USB interface. */
++ *R_USB_COMMAND =
++ IO_STATE(R_USB_COMMAND, port_sel, nop) |
++ IO_STATE(R_USB_COMMAND, port_cmd, reset) |
++ IO_STATE(R_USB_COMMAND, ctrl_cmd, reset);
++
++ /* Designer's Reference, p. 8 - 10 says we should Initate R_USB_FM_PSTART to
++ 0x2A30 (10800), to guarantee that control traffic gets 10% of the
++ bandwidth, and periodic transfer may allocate the rest (90%).
++ This doesn't work though.
++ The value 11960 is chosen to be just after the SOF token, with a couple
++ of bit times extra for possible bit stuffing. */
++ *R_USB_FM_PSTART = IO_FIELD(R_USB_FM_PSTART, value, 11960);
++
++ crisv10_ready_wait();
++ /* Configure the USB interface as a host controller. */
++ *R_USB_COMMAND =
++ IO_STATE(R_USB_COMMAND, port_sel, nop) |
++ IO_STATE(R_USB_COMMAND, port_cmd, reset) |
++ IO_STATE(R_USB_COMMAND, ctrl_cmd, host_config);
++
++
++ /* Check so controller not busy before enabling ports */
++ crisv10_ready_wait();
++
++ /* Enable selected USB ports */
++ if(port_in_use(0)) {
++ *R_USB_PORT1_DISABLE = IO_STATE(R_USB_PORT1_DISABLE, disable, no);
++ } else {
++ *R_USB_PORT1_DISABLE = IO_STATE(R_USB_PORT1_DISABLE, disable, yes);
++ }
++ if(port_in_use(1)) {
++ *R_USB_PORT2_DISABLE = IO_STATE(R_USB_PORT2_DISABLE, disable, no);
++ } else {
++ *R_USB_PORT2_DISABLE = IO_STATE(R_USB_PORT2_DISABLE, disable, yes);
++ }
++
++ crisv10_ready_wait();
++ /* Start processing of USB traffic. */
++ *R_USB_COMMAND =
++ IO_STATE(R_USB_COMMAND, port_sel, nop) |
++ IO_STATE(R_USB_COMMAND, port_cmd, reset) |
++ IO_STATE(R_USB_COMMAND, ctrl_cmd, host_run);
++
++ /* Do not continue probing initialization before USB interface is done */
++ crisv10_ready_wait();
++
++ /* Register our Host Controller to USB Core
++ * Finish the remaining parts of generic HCD initialization: allocate the
++ * buffers of consistent memory, register the bus
++ * and call the driver's reset() and start() routines. */
++ retval = usb_add_hcd(hcd, ETRAX_USB_HC_IRQ, IRQF_DISABLED);
++ if (retval != 0) {
++ devdrv_err("Failed registering HCD driver\n");
++ goto out;
++ }
++
++ return 0;
++
++ out:
++ devdrv_hcd_remove(dev);
++ return retval;
++}
++
++
++/* cleanup after the host controller and driver */
++static int __init_or_module devdrv_hcd_remove(struct device *dev)
++{
++ struct crisv10_hcd *crisv10_hcd = dev_get_drvdata(dev);
++ struct usb_hcd *hcd;
++
++ if (!crisv10_hcd)
++ return 0;
++ hcd = crisv10_hcd_to_hcd(crisv10_hcd);
++
++
++ /* Stop USB Controller in Etrax 100LX */
++ crisv10_hcd_reset(hcd);
++
++ usb_remove_hcd(hcd);
++ devdrv_dbg("Removed HCD from USB Core\n");
++
++ /* Free USB Controller IRQ */
++ free_irq(ETRAX_USB_HC_IRQ, NULL);
++
++ /* Free resources */
++ tc_dma_destroy();
++ tc_destroy();
++
++
++ if(port_in_use(0)) {
++ cris_free_io_interface(if_usb_1);
++ }
++ if(port_in_use(1)) {
++ cris_free_io_interface(if_usb_2);
++ }
++
++ devdrv_dbg("Freed all claimed resources\n");
++
++ return 0;
++}
++
++
++#ifdef CONFIG_PM
++
++static int devdrv_hcd_suspend(struct usb_hcd *hcd, u32 state, u32 level)
++{
++ return 0; /* no-op for now */
++}
++
++static int devdrv_hcd_resume(struct usb_hcd *hcd, u32 level)
++{
++ return 0; /* no-op for now */
++}
++
++#endif /* CONFIG_PM */
++
++
++
++/*************************************************************/
++/*************************************************************/
++/* Module block */
++/*************************************************************/
++/*************************************************************/
++
++/* register driver */
++static int __init module_hcd_init(void)
++{
++
++ if (usb_disabled())
++ return -ENODEV;
++
++ /* Here we select enabled ports by following defines created from
++ menuconfig */
++#ifndef CONFIG_ETRAX_USB_HOST_PORT1
++ ports &= ~(1<<0);
++#endif
++#ifndef CONFIG_ETRAX_USB_HOST_PORT2
++ ports &= ~(1<<1);
++#endif
+
+- /* Now we are free to remove it and its SB descriptor.
+- Note that it is assumed here that there is only one sb in the
+- sb list for this ep. */
+- kmem_cache_free(usb_desc_cache, phys_to_virt(unlink_ep->sub));
+- kmem_cache_free(usb_desc_cache, (USB_EP_Desc_t *)unlink_ep);
+- }
++ printk(KERN_INFO "%s version "VERSION" "COPYRIGHT"\n", product_desc);
+
+- curr_ep = phys_to_virt(curr_ep->next);
++ devdrv_hc_platform_device =
++ platform_device_register_simple((char *) hc_name, 0, NULL, 0);
+
+- } while (curr_ep != first_ep);
+- urb->hcpriv = NULL;
++ if (IS_ERR(devdrv_hc_platform_device))
++ return PTR_ERR(devdrv_hc_platform_device);
++ return driver_register(&devdrv_hc_device_driver);
++ /*
++ * Note that we do not set the DMA mask for the device,
++ * i.e. we pretend that we will use PIO, since no specific
++ * allocation routines are needed for DMA buffers. This will
++ * cause the HCD buffer allocation routines to fall back to
++ * kmalloc().
++ */
+ }
+
+-void etrax_usb_do_intr_recover(int epid)
+-{
+- USB_EP_Desc_t *first_ep, *tmp_ep;
++/* unregister driver */
++static void __exit module_hcd_exit(void)
++{
++ driver_unregister(&devdrv_hc_device_driver);
++}
+
+- DBFENTER;
+-
+- first_ep = (USB_EP_Desc_t *)phys_to_virt(*R_DMA_CH8_SUB2_EP);
+- tmp_ep = first_ep;
+-
+- /* What this does is simply to walk the list of interrupt
+- ep descriptors and enable those that are disabled. */
+-
+- do {
+- if (IO_EXTRACT(USB_EP_command, epid, tmp_ep->command) == epid &&
+- !(tmp_ep->command & IO_MASK(USB_EP_command, enable))) {
+- tmp_ep->command |= IO_STATE(USB_EP_command, enable, yes);
+- }
+-
+- tmp_ep = (USB_EP_Desc_t *)phys_to_virt(tmp_ep->next);
+-
+- } while (tmp_ep != first_ep);
+-
+-
+- DBFEXIT;
+-}
+-
+-static int etrax_rh_unlink_urb (struct urb *urb)
+-{
+- etrax_hc_t *hc;
+-
+- DBFENTER;
+-
+- hc = urb->dev->bus->hcpriv;
+-
+- if (hc->rh.urb == urb) {
+- hc->rh.send = 0;
+- del_timer(&hc->rh.rh_int_timer);
+- }
+-
+- DBFEXIT;
+- return 0;
+-}
+-
+-static void etrax_rh_send_irq(struct urb *urb)
+-{
+- __u16 data = 0;
+- etrax_hc_t *hc = urb->dev->bus->hcpriv;
+- DBFENTER;
+-
+-/*
+- dbg_rh("R_USB_FM_NUMBER : 0x%08X", *R_USB_FM_NUMBER);
+- dbg_rh("R_USB_FM_REMAINING: 0x%08X", *R_USB_FM_REMAINING);
+-*/
+-
+- data |= (hc->rh.wPortChange_1) ? (1 << 1) : 0;
+- data |= (hc->rh.wPortChange_2) ? (1 << 2) : 0;
+-
+- *((__u16 *)urb->transfer_buffer) = cpu_to_le16(data);
+- /* FIXME: Why is actual_length set to 1 when data is 2 bytes?
+- Since only 1 byte is used, why not declare data as __u8? */
+- urb->actual_length = 1;
+- urb->status = 0;
+-
+- if (hc->rh.send && urb->complete) {
+- dbg_rh("wPortChange_1: 0x%04X", hc->rh.wPortChange_1);
+- dbg_rh("wPortChange_2: 0x%04X", hc->rh.wPortChange_2);
+-
+- urb->complete(urb, NULL);
+- }
+-
+- DBFEXIT;
+-}
+-
+-static void etrax_rh_init_int_timer(struct urb *urb)
+-{
+- etrax_hc_t *hc;
+-
+- DBFENTER;
+-
+- hc = urb->dev->bus->hcpriv;
+- hc->rh.interval = urb->interval;
+- init_timer(&hc->rh.rh_int_timer);
+- hc->rh.rh_int_timer.function = etrax_rh_int_timer_do;
+- hc->rh.rh_int_timer.data = (unsigned long)urb;
+- /* FIXME: Is the jiffies resolution enough? All intervals < 10 ms will be mapped
+- to 0, and the rest to the nearest lower 10 ms. */
+- hc->rh.rh_int_timer.expires = jiffies + ((HZ * hc->rh.interval) / 1000);
+- add_timer(&hc->rh.rh_int_timer);
+-
+- DBFEXIT;
+-}
+-
+-static void etrax_rh_int_timer_do(unsigned long ptr)
+-{
+- struct urb *urb;
+- etrax_hc_t *hc;
+-
+- DBFENTER;
+-
+- urb = (struct urb*)ptr;
+- hc = urb->dev->bus->hcpriv;
+-
+- if (hc->rh.send) {
+- etrax_rh_send_irq(urb);
+- }
+-
+- DBFEXIT;
+-}
+-
+-static int etrax_usb_setup_epid(struct urb *urb)
+-{
+- int epid;
+- char devnum, endpoint, out_traffic, slow;
+- int maxlen;
+- unsigned long flags;
+-
+- DBFENTER;
+-
+- epid = etrax_usb_lookup_epid(urb);
+- if ((epid != -1)){
+- /* An epid that fits this urb has been found. */
+- DBFEXIT;
+- return epid;
+- }
+-
+- /* We must find and initiate a new epid for this urb. */
+- epid = etrax_usb_allocate_epid();
+-
+- if (epid == -1) {
+- /* Failed to allocate a new epid. */
+- DBFEXIT;
+- return epid;
+- }
+-
+- /* We now have a new epid to use. Initiate it. */
+- set_bit(epid, (void *)&epid_usage_bitmask);
+-
+- devnum = usb_pipedevice(urb->pipe);
+- endpoint = usb_pipeendpoint(urb->pipe);
+- slow = usb_pipeslow(urb->pipe);
+- maxlen = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe));
+- if (usb_pipetype(urb->pipe) == PIPE_CONTROL) {
+- /* We want both IN and OUT control traffic to be put on the same EP/SB list. */
+- out_traffic = 1;
+- } else {
+- out_traffic = usb_pipeout(urb->pipe);
+- }
+-
+- save_flags(flags);
+- cli();
+-
+- *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, epid);
+- nop();
+-
+- if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
+- *R_USB_EPT_DATA_ISO = IO_STATE(R_USB_EPT_DATA_ISO, valid, yes) |
+- /* FIXME: Change any to the actual port? */
+- IO_STATE(R_USB_EPT_DATA_ISO, port, any) |
+- IO_FIELD(R_USB_EPT_DATA_ISO, max_len, maxlen) |
+- IO_FIELD(R_USB_EPT_DATA_ISO, ep, endpoint) |
+- IO_FIELD(R_USB_EPT_DATA_ISO, dev, devnum);
+- } else {
+- *R_USB_EPT_DATA = IO_STATE(R_USB_EPT_DATA, valid, yes) |
+- IO_FIELD(R_USB_EPT_DATA, low_speed, slow) |
+- /* FIXME: Change any to the actual port? */
+- IO_STATE(R_USB_EPT_DATA, port, any) |
+- IO_FIELD(R_USB_EPT_DATA, max_len, maxlen) |
+- IO_FIELD(R_USB_EPT_DATA, ep, endpoint) |
+- IO_FIELD(R_USB_EPT_DATA, dev, devnum);
+- }
+-
+- restore_flags(flags);
+-
+- if (out_traffic) {
+- set_bit(epid, (void *)&epid_out_traffic);
+- } else {
+- clear_bit(epid, (void *)&epid_out_traffic);
+- }
+-
+- dbg_epid("Setting up epid %d with devnum %d, endpoint %d and max_len %d (%s)",
+- epid, devnum, endpoint, maxlen, out_traffic ? "OUT" : "IN");
+-
+- DBFEXIT;
+- return epid;
+-}
+-
+-static void etrax_usb_free_epid(int epid)
+-{
+- unsigned long flags;
+-
+- DBFENTER;
+-
+- if (!test_bit(epid, (void *)&epid_usage_bitmask)) {
+- warn("Trying to free unused epid %d", epid);
+- DBFEXIT;
+- return;
+- }
+-
+- save_flags(flags);
+- cli();
+-
+- *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, epid);
+- nop();
+- while (*R_USB_EPT_DATA & IO_MASK(R_USB_EPT_DATA, hold));
+- /* This will, among other things, set the valid field to 0. */
+- *R_USB_EPT_DATA = 0;
+- restore_flags(flags);
+-
+- clear_bit(epid, (void *)&epid_usage_bitmask);
+-
+-
+- dbg_epid("Freed epid %d", epid);
+-
+- DBFEXIT;
+-}
+-
+-static int etrax_usb_lookup_epid(struct urb *urb)
+-{
+- int i;
+- __u32 data;
+- char devnum, endpoint, slow, out_traffic;
+- int maxlen;
+- unsigned long flags;
+-
+- DBFENTER;
+-
+- devnum = usb_pipedevice(urb->pipe);
+- endpoint = usb_pipeendpoint(urb->pipe);
+- slow = usb_pipeslow(urb->pipe);
+- maxlen = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe));
+- if (usb_pipetype(urb->pipe) == PIPE_CONTROL) {
+- /* We want both IN and OUT control traffic to be put on the same EP/SB list. */
+- out_traffic = 1;
+- } else {
+- out_traffic = usb_pipeout(urb->pipe);
+- }
+-
+- /* Step through att epids. */
+- for (i = 0; i < NBR_OF_EPIDS; i++) {
+- if (test_bit(i, (void *)&epid_usage_bitmask) &&
+- test_bit(i, (void *)&epid_out_traffic) == out_traffic) {
+-
+- save_flags(flags);
+- cli();
+- *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, i);
+- nop();
+-
+- if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
+- data = *R_USB_EPT_DATA_ISO;
+- restore_flags(flags);
+-
+- if ((IO_MASK(R_USB_EPT_DATA_ISO, valid) & data) &&
+- (IO_EXTRACT(R_USB_EPT_DATA_ISO, dev, data) == devnum) &&
+- (IO_EXTRACT(R_USB_EPT_DATA_ISO, ep, data) == endpoint) &&
+- (IO_EXTRACT(R_USB_EPT_DATA_ISO, max_len, data) == maxlen)) {
+- dbg_epid("Found epid %d for devnum %d, endpoint %d (%s)",
+- i, devnum, endpoint, out_traffic ? "OUT" : "IN");
+- DBFEXIT;
+- return i;
+- }
+- } else {
+- data = *R_USB_EPT_DATA;
+- restore_flags(flags);
+-
+- if ((IO_MASK(R_USB_EPT_DATA, valid) & data) &&
+- (IO_EXTRACT(R_USB_EPT_DATA, dev, data) == devnum) &&
+- (IO_EXTRACT(R_USB_EPT_DATA, ep, data) == endpoint) &&
+- (IO_EXTRACT(R_USB_EPT_DATA, low_speed, data) == slow) &&
+- (IO_EXTRACT(R_USB_EPT_DATA, max_len, data) == maxlen)) {
+- dbg_epid("Found epid %d for devnum %d, endpoint %d (%s)",
+- i, devnum, endpoint, out_traffic ? "OUT" : "IN");
+- DBFEXIT;
+- return i;
+- }
+- }
+- }
+- }
+-
+- DBFEXIT;
+- return -1;
+-}
+-
+-static int etrax_usb_allocate_epid(void)
+-{
+- int i;
+-
+- DBFENTER;
+-
+- for (i = 0; i < NBR_OF_EPIDS; i++) {
+- if (!test_bit(i, (void *)&epid_usage_bitmask)) {
+- dbg_epid("Found free epid %d", i);
+- DBFEXIT;
+- return i;
+- }
+- }
+-
+- dbg_epid("Found no free epids");
+- DBFEXIT;
+- return -1;
+-}
+-
+-static int etrax_usb_submit_urb(struct urb *urb, unsigned mem_flags)
+-{
+- etrax_hc_t *hc;
+- int ret = -EINVAL;
+-
+- DBFENTER;
+-
+- if (!urb->dev || !urb->dev->bus) {
+- return -ENODEV;
+- }
+- if (usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe)) <= 0) {
+- info("Submit urb to pipe with maxpacketlen 0, pipe 0x%X\n", urb->pipe);
+- return -EMSGSIZE;
+- }
+-
+- if (urb->timeout) {
+- /* FIXME. */
+- warn("urb->timeout specified, ignoring.");
+- }
+-
+- hc = (etrax_hc_t*)urb->dev->bus->hcpriv;
+-
+- if (usb_pipedevice(urb->pipe) == hc->rh.devnum) {
+- /* This request is for the Virtual Root Hub. */
+- ret = etrax_rh_submit_urb(urb);
+-
+- } else if (usb_pipetype(urb->pipe) == PIPE_BULK) {
+-
+- ret = etrax_usb_submit_bulk_urb(urb);
+-
+- } else if (usb_pipetype(urb->pipe) == PIPE_CONTROL) {
+-
+- ret = etrax_usb_submit_ctrl_urb(urb);
+-
+- } else if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) {
+- int bustime;
+-
+- if (urb->bandwidth == 0) {
+- bustime = usb_check_bandwidth(urb->dev, urb);
+- if (bustime < 0) {
+- ret = bustime;
+- } else {
+- ret = etrax_usb_submit_intr_urb(urb);
+- if (ret == 0)
+- usb_claim_bandwidth(urb->dev, urb, bustime, 0);
+- }
+- } else {
+- /* Bandwidth already set. */
+- ret = etrax_usb_submit_intr_urb(urb);
+- }
+-
+- } else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
+- int bustime;
+-
+- if (urb->bandwidth == 0) {
+- bustime = usb_check_bandwidth(urb->dev, urb);
+- if (bustime < 0) {
+- ret = bustime;
+- } else {
+- ret = etrax_usb_submit_isoc_urb(urb);
+- if (ret == 0)
+- usb_claim_bandwidth(urb->dev, urb, bustime, 0);
+- }
+- } else {
+- /* Bandwidth already set. */
+- ret = etrax_usb_submit_isoc_urb(urb);
+- }
+- }
+-
+- DBFEXIT;
+-
+- if (ret != 0)
+- printk("Submit URB error %d\n", ret);
+-
+- return ret;
+-}
+-
+-static int etrax_usb_unlink_urb(struct urb *urb, int status)
+-{
+- etrax_hc_t *hc;
+- etrax_urb_priv_t *urb_priv;
+- int epid;
+- unsigned int flags;
+-
+- DBFENTER;
+-
+- if (!urb) {
+- return -EINVAL;
+- }
+-
+- /* Disable interrupts here since a descriptor interrupt for the isoc epid
+- will modify the sb list. This could possibly be done more granular, but
+- unlink_urb should not be used frequently anyway.
+- */
+-
+- save_flags(flags);
+- cli();
+-
+- if (!urb->dev || !urb->dev->bus) {
+- restore_flags(flags);
+- return -ENODEV;
+- }
+- if (!urb->hcpriv) {
+- /* This happens if a device driver calls unlink on an urb that
+- was never submitted (lazy driver) or if the urb was completed
+- while unlink was being called. */
+- restore_flags(flags);
+- return 0;
+- }
+- if (urb->transfer_flags & URB_ASYNC_UNLINK) {
+- /* FIXME. */
+- /* If URB_ASYNC_UNLINK is set:
+- unlink
+- move to a separate urb list
+- call complete at next sof with ECONNRESET
+-
+- If not:
+- wait 1 ms
+- unlink
+- call complete with ENOENT
+- */
+- warn("URB_ASYNC_UNLINK set, ignoring.");
+- }
+-
+- /* One might think that urb->status = -EINPROGRESS would be a requirement for unlinking,
+- but that doesn't work for interrupt and isochronous traffic since they are completed
+- repeatedly, and urb->status is set then. That may in itself be a bug though. */
+-
+- hc = urb->dev->bus->hcpriv;
+- urb_priv = (etrax_urb_priv_t *)urb->hcpriv;
+- epid = urb_priv->epid;
+-
+- /* Set the urb status (synchronous unlink). */
+- urb->status = -ENOENT;
+- urb_priv->urb_state = UNLINK;
+-
+- if (usb_pipedevice(urb->pipe) == hc->rh.devnum) {
+- int ret;
+- ret = etrax_rh_unlink_urb(urb);
+- DBFEXIT;
+- restore_flags(flags);
+- return ret;
+-
+- } else if (usb_pipetype(urb->pipe) == PIPE_BULK) {
+-
+- dbg_bulk("Unlink of bulk urb (0x%lx)", (unsigned long)urb);
+-
+- if (TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
+- /* The EP was enabled, disable it and wait. */
+- TxBulkEPList[epid].command &= ~IO_MASK(USB_EP_command, enable);
+-
+- /* Ah, the luxury of busy-wait. */
+- while (*R_DMA_CH8_SUB0_EP == virt_to_phys(&TxBulkEPList[epid]));
+- }
+- /* Kicking dummy list out of the party. */
+- TxBulkEPList[epid].next = virt_to_phys(&TxBulkEPList[(epid + 1) % NBR_OF_EPIDS]);
+-
+- } else if (usb_pipetype(urb->pipe) == PIPE_CONTROL) {
+-
+- dbg_ctrl("Unlink of ctrl urb (0x%lx)", (unsigned long)urb);
+-
+- if (TxCtrlEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
+- /* The EP was enabled, disable it and wait. */
+- TxCtrlEPList[epid].command &= ~IO_MASK(USB_EP_command, enable);
+-
+- /* Ah, the luxury of busy-wait. */
+- while (*R_DMA_CH8_SUB1_EP == virt_to_phys(&TxCtrlEPList[epid]));
+- }
+-
+- } else if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) {
+-
+- dbg_intr("Unlink of intr urb (0x%lx)", (unsigned long)urb);
+-
+- /* Separate function because it's a tad more complicated. */
+- etrax_usb_unlink_intr_urb(urb);
+-
+- } else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
+-
+- dbg_isoc("Unlink of isoc urb (0x%lx)", (unsigned long)urb);
+-
+- if (TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
+- /* The EP was enabled, disable it and wait. */
+- TxIsocEPList[epid].command &= ~IO_MASK(USB_EP_command, enable);
+-
+- /* Ah, the luxury of busy-wait. */
+- while (*R_DMA_CH8_SUB3_EP == virt_to_phys(&TxIsocEPList[epid]));
+- }
+- }
+-
+- /* Note that we need to remove the urb from the urb list *before* removing its SB
+- descriptors. (This means that the isoc eof handler might get a null urb when we
+- are unlinking the last urb.) */
+-
+- if (usb_pipetype(urb->pipe) == PIPE_BULK) {
+-
+- urb_list_del(urb, epid);
+- TxBulkEPList[epid].sub = 0;
+- etrax_remove_from_sb_list(urb);
+-
+- } else if (usb_pipetype(urb->pipe) == PIPE_CONTROL) {
+-
+- urb_list_del(urb, epid);
+- TxCtrlEPList[epid].sub = 0;
+- etrax_remove_from_sb_list(urb);
+-
+- } else if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) {
+-
+- urb_list_del(urb, epid);
+- /* Sanity check (should never happen). */
+- assert(urb_list_empty(epid));
+-
+- /* Release allocated bandwidth. */
+- usb_release_bandwidth(urb->dev, urb, 0);
+-
+- } else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
+-
+- if (usb_pipeout(urb->pipe)) {
+-
+- USB_SB_Desc_t *iter_sb, *prev_sb, *next_sb;
+-
+- if (__urb_list_entry(urb, epid)) {
+-
+- urb_list_del(urb, epid);
+- iter_sb = TxIsocEPList[epid].sub ? phys_to_virt(TxIsocEPList[epid].sub) : 0;
+- prev_sb = 0;
+- while (iter_sb && (iter_sb != urb_priv->first_sb)) {
+- prev_sb = iter_sb;
+- iter_sb = iter_sb->next ? phys_to_virt(iter_sb->next) : 0;
+- }
+-
+- if (iter_sb == 0) {
+- /* Unlink of the URB currently being transmitted. */
+- prev_sb = 0;
+- iter_sb = TxIsocEPList[epid].sub ? phys_to_virt(TxIsocEPList[epid].sub) : 0;
+- }
+-
+- while (iter_sb && (iter_sb != urb_priv->last_sb)) {
+- iter_sb = iter_sb->next ? phys_to_virt(iter_sb->next) : 0;
+- }
+- if (iter_sb) {
+- next_sb = iter_sb->next ? phys_to_virt(iter_sb->next) : 0;
+- } else {
+- /* This should only happen if the DMA has completed
+- processing the SB list for this EP while interrupts
+- are disabled. */
+- dbg_isoc("Isoc urb not found, already sent?");
+- next_sb = 0;
+- }
+- if (prev_sb) {
+- prev_sb->next = next_sb ? virt_to_phys(next_sb) : 0;
+- } else {
+- TxIsocEPList[epid].sub = next_sb ? virt_to_phys(next_sb) : 0;
+- }
+-
+- etrax_remove_from_sb_list(urb);
+- if (urb_list_empty(epid)) {
+- TxIsocEPList[epid].sub = 0;
+- dbg_isoc("Last isoc out urb epid %d", epid);
+- } else if (next_sb || prev_sb) {
+- dbg_isoc("Re-enable isoc out epid %d", epid);
+-
+- TxIsocEPList[epid].hw_len = 0;
+- TxIsocEPList[epid].command |= IO_STATE(USB_EP_command, enable, yes);
+- } else {
+- TxIsocEPList[epid].sub = 0;
+- dbg_isoc("URB list non-empty and no SB list, EP disabled");
+- }
+- } else {
+- dbg_isoc("Urb 0x%p not found, completed already?", urb);
+- }
+- } else {
+-
+- urb_list_del(urb, epid);
+-
+- /* For in traffic there is only one SB descriptor for each EP even
+- though there may be several urbs (all urbs point at the same SB). */
+- if (urb_list_empty(epid)) {
+- /* No more urbs, remove the SB. */
+- TxIsocEPList[epid].sub = 0;
+- etrax_remove_from_sb_list(urb);
+- } else {
+- TxIsocEPList[epid].hw_len = 0;
+- TxIsocEPList[epid].command |= IO_STATE(USB_EP_command, enable, yes);
+- }
+- }
+- /* Release allocated bandwidth. */
+- usb_release_bandwidth(urb->dev, urb, 1);
+- }
+- /* Free the epid if urb list is empty. */
+- if (urb_list_empty(epid)) {
+- etrax_usb_free_epid(epid);
+- }
+- restore_flags(flags);
+-
+- /* Must be done before calling completion handler. */
+- kfree(urb_priv);
+- urb->hcpriv = 0;
+-
+- if (urb->complete) {
+- urb->complete(urb, NULL);
+- }
+-
+- DBFEXIT;
+- return 0;
+-}
+-
+-static int etrax_usb_get_frame_number(struct usb_device *usb_dev)
+-{
+- DBFENTER;
+- DBFEXIT;
+- return (*R_USB_FM_NUMBER & 0x7ff);
+-}
+-
+-static irqreturn_t etrax_usb_tx_interrupt(int irq, void *vhc)
+-{
+- DBFENTER;
+-
+- /* This interrupt handler could be used when unlinking EP descriptors. */
+-
+- if (*R_IRQ_READ2 & IO_MASK(R_IRQ_READ2, dma8_sub0_descr)) {
+- USB_EP_Desc_t *ep;
+-
+- //dbg_bulk("dma8_sub0_descr (BULK) intr.");
+-
+- /* It should be safe clearing the interrupt here, since we don't expect to get a new
+- one until we restart the bulk channel. */
+- *R_DMA_CH8_SUB0_CLR_INTR = IO_STATE(R_DMA_CH8_SUB0_CLR_INTR, clr_descr, do);
+-
+- /* Wait while the DMA is running (though we don't expect it to be). */
+- while (*R_DMA_CH8_SUB0_CMD & IO_MASK(R_DMA_CH8_SUB0_CMD, cmd));
+-
+- /* Advance the DMA to the next EP descriptor. */
+- ep = (USB_EP_Desc_t *)phys_to_virt(*R_DMA_CH8_SUB0_EP);
+-
+- //dbg_bulk("descr intr: DMA is at 0x%lx", (unsigned long)ep);
+-
+- /* ep->next is already a physical address; no need for a virt_to_phys. */
+- *R_DMA_CH8_SUB0_EP = ep->next;
+-
+- /* Start the DMA bulk channel again. */
+- *R_DMA_CH8_SUB0_CMD = IO_STATE(R_DMA_CH8_SUB0_CMD, cmd, start);
+- }
+- if (*R_IRQ_READ2 & IO_MASK(R_IRQ_READ2, dma8_sub1_descr)) {
+- struct urb *urb;
+- int epid;
+- etrax_urb_priv_t *urb_priv;
+- unsigned long int flags;
+-
+- dbg_ctrl("dma8_sub1_descr (CTRL) intr.");
+- *R_DMA_CH8_SUB1_CLR_INTR = IO_STATE(R_DMA_CH8_SUB1_CLR_INTR, clr_descr, do);
+-
+- /* The complete callback gets called so we cli. */
+- save_flags(flags);
+- cli();
+-
+- for (epid = 0; epid < NBR_OF_EPIDS - 1; epid++) {
+- if ((TxCtrlEPList[epid].sub == 0) ||
+- (epid == DUMMY_EPID) ||
+- (epid == INVALID_EPID)) {
+- /* Nothing here to see. */
+- continue;
+- }
+-
+- /* Get the first urb (if any). */
+- urb = urb_list_first(epid);
+-
+- if (urb) {
+-
+- /* Sanity check. */
+- assert(usb_pipetype(urb->pipe) == PIPE_CONTROL);
+-
+- urb_priv = (etrax_urb_priv_t *)urb->hcpriv;
+- assert(urb_priv);
+-
+- if (urb_priv->urb_state == WAITING_FOR_DESCR_INTR) {
+- assert(!(TxCtrlEPList[urb_priv->epid].command & IO_MASK(USB_EP_command, enable)));
+-
+- etrax_usb_complete_urb(urb, 0);
+- }
+- }
+- }
+- restore_flags(flags);
+- }
+- if (*R_IRQ_READ2 & IO_MASK(R_IRQ_READ2, dma8_sub2_descr)) {
+- dbg_intr("dma8_sub2_descr (INTR) intr.");
+- *R_DMA_CH8_SUB2_CLR_INTR = IO_STATE(R_DMA_CH8_SUB2_CLR_INTR, clr_descr, do);
+- }
+- if (*R_IRQ_READ2 & IO_MASK(R_IRQ_READ2, dma8_sub3_descr)) {
+- struct urb *urb;
+- int epid;
+- int epid_done;
+- etrax_urb_priv_t *urb_priv;
+- USB_SB_Desc_t *sb_desc;
+-
+- usb_isoc_complete_data_t *comp_data = NULL;
+-
+- /* One or more isoc out transfers are done. */
+- dbg_isoc("dma8_sub3_descr (ISOC) intr.");
+-
+- /* For each isoc out EP search for the first sb_desc with the intr flag
+- set. This descriptor must be the last packet from an URB. Then
+- traverse the URB list for the EP until the URB with urb_priv->last_sb
+- matching the intr-marked sb_desc is found. All URBs before this have
+- been sent.
+- */
+-
+- for (epid = 0; epid < NBR_OF_EPIDS - 1; epid++) {
+- /* Skip past epids with no SB lists, epids used for in traffic,
+- and special (dummy, invalid) epids. */
+- if ((TxIsocEPList[epid].sub == 0) ||
+- (test_bit(epid, (void *)&epid_out_traffic) == 0) ||
+- (epid == DUMMY_EPID) ||
+- (epid == INVALID_EPID)) {
+- /* Nothing here to see. */
+- continue;
+- }
+- sb_desc = phys_to_virt(TxIsocEPList[epid].sub);
+-
+- /* Find the last descriptor of the currently active URB for this ep.
+- This is the first descriptor in the sub list marked for a descriptor
+- interrupt. */
+- while (sb_desc && !IO_EXTRACT(USB_SB_command, intr, sb_desc->command)) {
+- sb_desc = sb_desc->next ? phys_to_virt(sb_desc->next) : 0;
+- }
+- assert(sb_desc);
+-
+- dbg_isoc("Check epid %d, sub 0x%p, SB 0x%p",
+- epid,
+- phys_to_virt(TxIsocEPList[epid].sub),
+- sb_desc);
+-
+- epid_done = 0;
+-
+- /* Get the first urb (if any). */
+- urb = urb_list_first(epid);
+- assert(urb);
+-
+- while (urb && !epid_done) {
+-
+- /* Sanity check. */
+- assert(usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS);
+-
+- if (!usb_pipeout(urb->pipe)) {
+- /* descr interrupts are generated only for out pipes. */
+- epid_done = 1;
+- continue;
+- }
+-
+- urb_priv = (etrax_urb_priv_t *)urb->hcpriv;
+- assert(urb_priv);
+-
+- if (sb_desc != urb_priv->last_sb) {
+-
+- /* This urb has been sent. */
+- dbg_isoc("out URB 0x%p sent", urb);
+-
+- urb_priv->urb_state = TRANSFER_DONE;
+-
+- } else if ((sb_desc == urb_priv->last_sb) &&
+- !(TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable))) {
+-
+- assert((sb_desc->command & IO_MASK(USB_SB_command, eol)) == IO_STATE(USB_SB_command, eol, yes));
+- assert(sb_desc->next == 0);
+-
+- dbg_isoc("out URB 0x%p last in list, epid disabled", urb);
+- TxIsocEPList[epid].sub = 0;
+- TxIsocEPList[epid].hw_len = 0;
+- urb_priv->urb_state = TRANSFER_DONE;
+-
+- epid_done = 1;
+-
+- } else {
+- epid_done = 1;
+- }
+- if (!epid_done) {
+- urb = urb_list_next(urb, epid);
+- }
+- }
+-
+- }
+-
+- *R_DMA_CH8_SUB3_CLR_INTR = IO_STATE(R_DMA_CH8_SUB3_CLR_INTR, clr_descr, do);
+-
+- comp_data = (usb_isoc_complete_data_t*)kmem_cache_alloc(isoc_compl_cache, SLAB_ATOMIC);
+- assert(comp_data != NULL);
+-
+- INIT_WORK(&comp_data->usb_bh, etrax_usb_isoc_descr_interrupt_bottom_half, comp_data);
+- schedule_work(&comp_data->usb_bh);
+- }
+-
+- DBFEXIT;
+- return IRQ_HANDLED;
+-}
+-
+-static void etrax_usb_isoc_descr_interrupt_bottom_half(void *data)
+-{
+- usb_isoc_complete_data_t *comp_data = (usb_isoc_complete_data_t*)data;
+-
+- struct urb *urb;
+- int epid;
+- int epid_done;
+- etrax_urb_priv_t *urb_priv;
+-
+- DBFENTER;
+-
+- dbg_isoc("dma8_sub3_descr (ISOC) bottom half.");
+-
+- for (epid = 0; epid < NBR_OF_EPIDS - 1; epid++) {
+- unsigned long flags;
+-
+- save_flags(flags);
+- cli();
+-
+- epid_done = 0;
+-
+- /* The descriptor interrupt handler has marked all transmitted isoch. out
+- URBs with TRANSFER_DONE. Now we traverse all epids and for all that
+- have isoch. out traffic traverse its URB list and complete the
+- transmitted URB.
+- */
+-
+- while (!epid_done) {
+-
+- /* Get the first urb (if any). */
+- urb = urb_list_first(epid);
+- if (urb == 0) {
+- epid_done = 1;
+- continue;
+- }
+-
+- if (usb_pipetype(urb->pipe) != PIPE_ISOCHRONOUS) {
+- epid_done = 1;
+- continue;
+- }
+-
+- if (!usb_pipeout(urb->pipe)) {
+- /* descr interrupts are generated only for out pipes. */
+- epid_done = 1;
+- continue;
+- }
+-
+- dbg_isoc("Check epid %d, SB 0x%p", epid, (char*)TxIsocEPList[epid].sub);
+-
+- urb_priv = (etrax_urb_priv_t *)urb->hcpriv;
+- assert(urb_priv);
+-
+- if (urb_priv->urb_state == TRANSFER_DONE) {
+- int i;
+- struct usb_iso_packet_descriptor *packet;
+-
+- /* This urb has been sent. */
+- dbg_isoc("Completing isoc out URB 0x%p", urb);
+-
+- for (i = 0; i < urb->number_of_packets; i++) {
+- packet = &urb->iso_frame_desc[i];
+- packet->status = 0;
+- packet->actual_length = packet->length;
+- }
+-
+- etrax_usb_complete_isoc_urb(urb, 0);
+-
+- if (urb_list_empty(epid)) {
+- etrax_usb_free_epid(epid);
+- epid_done = 1;
+- }
+- } else {
+- epid_done = 1;
+- }
+- }
+- restore_flags(flags);
+-
+- }
+- kmem_cache_free(isoc_compl_cache, comp_data);
+-
+- DBFEXIT;
+-}
+-
+-
+-
+-static irqreturn_t etrax_usb_rx_interrupt(int irq, void *vhc)
+-{
+- struct urb *urb;
+- etrax_urb_priv_t *urb_priv;
+- int epid = 0;
+- unsigned long flags;
+-
+- /* Isoc diagnostics. */
+- static int curr_fm = 0;
+- static int prev_fm = 0;
+-
+- DBFENTER;
+-
+- /* Clear this interrupt. */
+- *R_DMA_CH9_CLR_INTR = IO_STATE(R_DMA_CH9_CLR_INTR, clr_eop, do);
+-
+- /* Note that this while loop assumes that all packets span only
+- one rx descriptor. */
+-
+- /* The reason we cli here is that we call the driver's callback functions. */
+- save_flags(flags);
+- cli();
+-
+- while (myNextRxDesc->status & IO_MASK(USB_IN_status, eop)) {
+-
+- epid = IO_EXTRACT(USB_IN_status, epid, myNextRxDesc->status);
+- urb = urb_list_first(epid);
+-
+- //printk("eop for epid %d, first urb 0x%lx\n", epid, (unsigned long)urb);
+-
+- if (!urb) {
+- err("No urb for epid %d in rx interrupt", epid);
+- __dump_ept_data(epid);
+- goto skip_out;
+- }
+-
+- /* Note that we cannot indescriminately assert(usb_pipein(urb->pipe)) since
+- ctrl pipes are not. */
+-
+- if (myNextRxDesc->status & IO_MASK(USB_IN_status, error)) {
+- __u32 r_usb_ept_data;
+- int no_error = 0;
+-
+- assert(test_bit(epid, (void *)&epid_usage_bitmask));
+-
+- *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, epid);
+- nop();
+- if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
+- r_usb_ept_data = *R_USB_EPT_DATA_ISO;
+-
+- if ((r_usb_ept_data & IO_MASK(R_USB_EPT_DATA_ISO, valid)) &&
+- (IO_EXTRACT(R_USB_EPT_DATA_ISO, error_code, r_usb_ept_data) == 0) &&
+- (myNextRxDesc->status & IO_MASK(USB_IN_status, nodata))) {
+- /* Not an error, just a failure to receive an expected iso
+- in packet in this frame. This is not documented
+- in the designers reference.
+- */
+- no_error++;
+- } else {
+- warn("R_USB_EPT_DATA_ISO for epid %d = 0x%x", epid, r_usb_ept_data);
+- }
+- } else {
+- r_usb_ept_data = *R_USB_EPT_DATA;
+- warn("R_USB_EPT_DATA for epid %d = 0x%x", epid, r_usb_ept_data);
+- }
+-
+- if (!no_error){
+- warn("error in rx desc->status, epid %d, first urb = 0x%lx",
+- epid, (unsigned long)urb);
+- __dump_in_desc(myNextRxDesc);
+-
+- warn("R_USB_STATUS = 0x%x", *R_USB_STATUS);
+-
+- /* Check that ept was disabled when error occurred. */
+- switch (usb_pipetype(urb->pipe)) {
+- case PIPE_BULK:
+- assert(!(TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)));
+- break;
+- case PIPE_CONTROL:
+- assert(!(TxCtrlEPList[epid].command & IO_MASK(USB_EP_command, enable)));
+- break;
+- case PIPE_INTERRUPT:
+- assert(!(TxIntrEPList[epid].command & IO_MASK(USB_EP_command, enable)));
+- break;
+- case PIPE_ISOCHRONOUS:
+- assert(!(TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable)));
+- break;
+- default:
+- warn("etrax_usb_rx_interrupt: bad pipetype %d in urb 0x%p",
+- usb_pipetype(urb->pipe),
+- urb);
+- }
+- etrax_usb_complete_urb(urb, -EPROTO);
+- goto skip_out;
+- }
+- }
+-
+- urb_priv = (etrax_urb_priv_t *)urb->hcpriv;
+- assert(urb_priv);
+-
+- if ((usb_pipetype(urb->pipe) == PIPE_BULK) ||
+- (usb_pipetype(urb->pipe) == PIPE_CONTROL) ||
+- (usb_pipetype(urb->pipe) == PIPE_INTERRUPT)) {
+-
+- if (myNextRxDesc->status & IO_MASK(USB_IN_status, nodata)) {
+- /* We get nodata for empty data transactions, and the rx descriptor's
+- hw_len field is not valid in that case. No data to copy in other
+- words. */
+- } else {
+- /* Make sure the data fits in the buffer. */
+- assert(urb_priv->rx_offset + myNextRxDesc->hw_len
+- <= urb->transfer_buffer_length);
+-
+- memcpy(urb->transfer_buffer + urb_priv->rx_offset,
+- phys_to_virt(myNextRxDesc->buf), myNextRxDesc->hw_len);
+- urb_priv->rx_offset += myNextRxDesc->hw_len;
+- }
+-
+- if (myNextRxDesc->status & IO_MASK(USB_IN_status, eot)) {
+- if ((usb_pipetype(urb->pipe) == PIPE_CONTROL) &&
+- ((TxCtrlEPList[urb_priv->epid].command & IO_MASK(USB_EP_command, enable)) ==
+- IO_STATE(USB_EP_command, enable, yes))) {
+- /* The EP is still enabled, so the OUT packet used to ack
+- the in data is probably not processed yet. If the EP
+- sub pointer has not moved beyond urb_priv->last_sb mark
+- it for a descriptor interrupt and complete the urb in
+- the descriptor interrupt handler.
+- */
+- USB_SB_Desc_t *sub = TxCtrlEPList[urb_priv->epid].sub ? phys_to_virt(TxCtrlEPList[urb_priv->epid].sub) : 0;
+-
+- while ((sub != NULL) && (sub != urb_priv->last_sb)) {
+- sub = sub->next ? phys_to_virt(sub->next) : 0;
+- }
+- if (sub != NULL) {
+- /* The urb has not been fully processed. */
+- urb_priv->urb_state = WAITING_FOR_DESCR_INTR;
+- } else {
+- warn("(CTRL) epid enabled and urb (0x%p) processed, ep->sub=0x%p", urb, (char*)TxCtrlEPList[urb_priv->epid].sub);
+- etrax_usb_complete_urb(urb, 0);
+- }
+- } else {
+- etrax_usb_complete_urb(urb, 0);
+- }
+- }
+-
+- } else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
+-
+- struct usb_iso_packet_descriptor *packet;
+-
+- if (urb_priv->urb_state == UNLINK) {
+- info("Ignoring rx data for urb being unlinked.");
+- goto skip_out;
+- } else if (urb_priv->urb_state == NOT_STARTED) {
+- info("What? Got rx data for urb that isn't started?");
+- goto skip_out;
+- }
+-
+- packet = &urb->iso_frame_desc[urb_priv->isoc_packet_counter];
+- packet->status = 0;
+-
+- if (myNextRxDesc->status & IO_MASK(USB_IN_status, nodata)) {
+- /* We get nodata for empty data transactions, and the rx descriptor's
+- hw_len field is not valid in that case. We copy 0 bytes however to
+- stay in synch. */
+- packet->actual_length = 0;
+- } else {
+- packet->actual_length = myNextRxDesc->hw_len;
+- /* Make sure the data fits in the buffer. */
+- assert(packet->actual_length <= packet->length);
+- memcpy(urb->transfer_buffer + packet->offset,
+- phys_to_virt(myNextRxDesc->buf), packet->actual_length);
+- }
+-
+- /* Increment the packet counter. */
+- urb_priv->isoc_packet_counter++;
+-
+- /* Note that we don't care about the eot field in the rx descriptor's status.
+- It will always be set for isoc traffic. */
+- if (urb->number_of_packets == urb_priv->isoc_packet_counter) {
+-
+- /* Out-of-synch diagnostics. */
+- curr_fm = (*R_USB_FM_NUMBER & 0x7ff);
+- if (((prev_fm + urb_priv->isoc_packet_counter) % (0x7ff + 1)) != curr_fm) {
+- /* This test is wrong, if there is more than one isoc
+- in endpoint active it will always calculate wrong
+- since prev_fm is shared by all endpoints.
+-
+- FIXME Make this check per URB using urb->start_frame.
+- */
+- dbg_isoc("Out of synch? Previous frame = %d, current frame = %d",
+- prev_fm, curr_fm);
+-
+- }
+- prev_fm = curr_fm;
+-
+- /* Complete the urb with status OK. */
+- etrax_usb_complete_isoc_urb(urb, 0);
+- }
+- }
+-
+- skip_out:
+-
+- /* DMA IN cache bug. Flush the DMA IN buffer from the cache. (struct etrax_dma_descr
+- has the same layout as USB_IN_Desc for the relevant fields.) */
+- prepare_rx_descriptor((struct etrax_dma_descr*)myNextRxDesc);
+-
+- myPrevRxDesc = myNextRxDesc;
+- myPrevRxDesc->command |= IO_MASK(USB_IN_command, eol);
+- myLastRxDesc->command &= ~IO_MASK(USB_IN_command, eol);
+- myLastRxDesc = myPrevRxDesc;
+-
+- myNextRxDesc->status = 0;
+- myNextRxDesc = phys_to_virt(myNextRxDesc->next);
+- }
+-
+- restore_flags(flags);
+-
+- DBFEXIT;
+-
+- return IRQ_HANDLED;
+-}
+-
+-
+-/* This function will unlink the SB descriptors associated with this urb. */
+-static int etrax_remove_from_sb_list(struct urb *urb)
+-{
+- USB_SB_Desc_t *next_sb, *first_sb, *last_sb;
+- etrax_urb_priv_t *urb_priv;
+- int i = 0;
+-
+- DBFENTER;
+-
+- urb_priv = (etrax_urb_priv_t *)urb->hcpriv;
+- assert(urb_priv);
+-
+- /* Just a sanity check. Since we don't fiddle with the DMA list the EP descriptor
+- doesn't really need to be disabled, it's just that we expect it to be. */
+- if (usb_pipetype(urb->pipe) == PIPE_BULK) {
+- assert(!(TxBulkEPList[urb_priv->epid].command & IO_MASK(USB_EP_command, enable)));
+- } else if (usb_pipetype(urb->pipe) == PIPE_CONTROL) {
+- assert(!(TxCtrlEPList[urb_priv->epid].command & IO_MASK(USB_EP_command, enable)));
+- }
+-
+- first_sb = urb_priv->first_sb;
+- last_sb = urb_priv->last_sb;
+-
+- assert(first_sb);
+- assert(last_sb);
+-
+- while (first_sb != last_sb) {
+- next_sb = (USB_SB_Desc_t *)phys_to_virt(first_sb->next);
+- kmem_cache_free(usb_desc_cache, first_sb);
+- first_sb = next_sb;
+- i++;
+- }
+- kmem_cache_free(usb_desc_cache, last_sb);
+- i++;
+- dbg_sb("%d SB descriptors freed", i);
+- /* Compare i with urb->number_of_packets for Isoc traffic.
+- Should be same when calling unlink_urb */
+-
+- DBFEXIT;
+-
+- return i;
+-}
+-
+-static int etrax_usb_submit_bulk_urb(struct urb *urb)
+-{
+- int epid;
+- int empty;
+- unsigned long flags;
+- etrax_urb_priv_t *urb_priv;
+-
+- DBFENTER;
+-
+- /* Epid allocation, empty check and list add must be protected.
+- Read about this in etrax_usb_submit_ctrl_urb. */
+-
+- spin_lock_irqsave(&urb_list_lock, flags);
+- epid = etrax_usb_setup_epid(urb);
+- if (epid == -1) {
+- DBFEXIT;
+- spin_unlock_irqrestore(&urb_list_lock, flags);
+- return -ENOMEM;
+- }
+- empty = urb_list_empty(epid);
+- urb_list_add(urb, epid);
+- spin_unlock_irqrestore(&urb_list_lock, flags);
+-
+- dbg_bulk("Adding bulk %s urb 0x%lx to %s list, epid %d",
+- usb_pipein(urb->pipe) ? "IN" : "OUT", (unsigned long)urb, empty ? "empty" : "", epid);
+-
+- /* Mark the urb as being in progress. */
+- urb->status = -EINPROGRESS;
+-
+- /* Setup the hcpriv data. */
+- urb_priv = kzalloc(sizeof(etrax_urb_priv_t), KMALLOC_FLAG);
+- assert(urb_priv != NULL);
+- /* This sets rx_offset to 0. */
+- urb_priv->urb_state = NOT_STARTED;
+- urb->hcpriv = urb_priv;
+-
+- if (empty) {
+- etrax_usb_add_to_bulk_sb_list(urb, epid);
+- }
+-
+- DBFEXIT;
+-
+- return 0;
+-}
+-
+-static void etrax_usb_add_to_bulk_sb_list(struct urb *urb, int epid)
+-{
+- USB_SB_Desc_t *sb_desc;
+- etrax_urb_priv_t *urb_priv = (etrax_urb_priv_t *)urb->hcpriv;
+- unsigned long flags;
+- char maxlen;
+-
+- DBFENTER;
+-
+- dbg_bulk("etrax_usb_add_to_bulk_sb_list, urb 0x%lx", (unsigned long)urb);
+-
+- maxlen = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe));
+-
+- sb_desc = (USB_SB_Desc_t*)kmem_cache_alloc(usb_desc_cache, SLAB_FLAG);
+- assert(sb_desc != NULL);
+- memset(sb_desc, 0, sizeof(USB_SB_Desc_t));
+-
+-
+- if (usb_pipeout(urb->pipe)) {
+-
+- dbg_bulk("Grabbing bulk OUT, urb 0x%lx, epid %d", (unsigned long)urb, epid);
+-
+- /* This is probably a sanity check of the bulk transaction length
+- not being larger than 64 kB. */
+- if (urb->transfer_buffer_length > 0xffff) {
+- panic("urb->transfer_buffer_length > 0xffff");
+- }
+-
+- sb_desc->sw_len = urb->transfer_buffer_length;
+-
+- /* The rem field is don't care if it's not a full-length transfer, so setting
+- it shouldn't hurt. Also, rem isn't used for OUT traffic. */
+- sb_desc->command = (IO_FIELD(USB_SB_command, rem, 0) |
+- IO_STATE(USB_SB_command, tt, out) |
+- IO_STATE(USB_SB_command, eot, yes) |
+- IO_STATE(USB_SB_command, eol, yes));
+-
+- /* The full field is set to yes, even if we don't actually check that this is
+- a full-length transfer (i.e., that transfer_buffer_length % maxlen = 0).
+- Setting full prevents the USB controller from sending an empty packet in
+- that case. However, if URB_ZERO_PACKET was set we want that. */
+- if (!(urb->transfer_flags & URB_ZERO_PACKET)) {
+- sb_desc->command |= IO_STATE(USB_SB_command, full, yes);
+- }
+-
+- sb_desc->buf = virt_to_phys(urb->transfer_buffer);
+- sb_desc->next = 0;
+-
+- } else if (usb_pipein(urb->pipe)) {
+-
+- dbg_bulk("Grabbing bulk IN, urb 0x%lx, epid %d", (unsigned long)urb, epid);
+-
+- sb_desc->sw_len = urb->transfer_buffer_length ?
+- (urb->transfer_buffer_length - 1) / maxlen + 1 : 0;
+-
+- /* The rem field is don't care if it's not a full-length transfer, so setting
+- it shouldn't hurt. */
+- sb_desc->command =
+- (IO_FIELD(USB_SB_command, rem,
+- urb->transfer_buffer_length % maxlen) |
+- IO_STATE(USB_SB_command, tt, in) |
+- IO_STATE(USB_SB_command, eot, yes) |
+- IO_STATE(USB_SB_command, eol, yes));
+-
+- sb_desc->buf = 0;
+- sb_desc->next = 0;
+- }
+-
+- urb_priv->first_sb = sb_desc;
+- urb_priv->last_sb = sb_desc;
+- urb_priv->epid = epid;
+-
+- urb->hcpriv = urb_priv;
+-
+- /* Reset toggle bits and reset error count. */
+- save_flags(flags);
+- cli();
+-
+- *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, epid);
+- nop();
+-
+- /* FIXME: Is this a special case since the hold field is checked,
+- or should we check hold in a lot of other cases as well? */
+- if (*R_USB_EPT_DATA & IO_MASK(R_USB_EPT_DATA, hold)) {
+- panic("Hold was set in %s", __FUNCTION__);
+- }
+-
+- /* Reset error counters (regardless of which direction this traffic is). */
+- *R_USB_EPT_DATA &=
+- ~(IO_MASK(R_USB_EPT_DATA, error_count_in) |
+- IO_MASK(R_USB_EPT_DATA, error_count_out));
+-
+- /* Software must preset the toggle bits. */
+- if (usb_pipeout(urb->pipe)) {
+- char toggle =
+- usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe), usb_pipeout(urb->pipe));
+- *R_USB_EPT_DATA &= ~IO_MASK(R_USB_EPT_DATA, t_out);
+- *R_USB_EPT_DATA |= IO_FIELD(R_USB_EPT_DATA, t_out, toggle);
+- } else {
+- char toggle =
+- usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe), usb_pipeout(urb->pipe));
+- *R_USB_EPT_DATA &= ~IO_MASK(R_USB_EPT_DATA, t_in);
+- *R_USB_EPT_DATA |= IO_FIELD(R_USB_EPT_DATA, t_in, toggle);
+- }
+-
+- /* Assert that the EP descriptor is disabled. */
+- assert(!(TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)));
+-
+- /* The reason we set the EP's sub pointer directly instead of
+- walking the SB list and linking it last in the list is that we only
+- have one active urb at a time (the rest are queued). */
+-
+- /* Note that we cannot have interrupts running when we have set the SB descriptor
+- but the EP is not yet enabled. If a bulk eot happens for another EP, we will
+- find this EP disabled and with a SB != 0, which will make us think that it's done. */
+- TxBulkEPList[epid].sub = virt_to_phys(sb_desc);
+- TxBulkEPList[epid].hw_len = 0;
+- /* Note that we don't have to fill in the ep_id field since this
+- was done when we allocated the EP descriptors in init_tx_bulk_ep. */
+-
+- /* Check if the dummy list is already with us (if several urbs were queued). */
+- if (TxBulkEPList[epid].next != virt_to_phys(&TxBulkDummyEPList[epid][0])) {
+-
+- dbg_bulk("Inviting dummy list to the party for urb 0x%lx, epid %d",
+- (unsigned long)urb, epid);
+-
+- /* The last EP in the dummy list already has its next pointer set to
+- TxBulkEPList[epid].next. */
+-
+- /* We don't need to check if the DMA is at this EP or not before changing the
+- next pointer, since we will do it in one 32-bit write (EP descriptors are
+- 32-bit aligned). */
+- TxBulkEPList[epid].next = virt_to_phys(&TxBulkDummyEPList[epid][0]);
+- }
+- /* Enable the EP descr. */
+- dbg_bulk("Enabling bulk EP for urb 0x%lx, epid %d", (unsigned long)urb, epid);
+- TxBulkEPList[epid].command |= IO_STATE(USB_EP_command, enable, yes);
+-
+- /* Everything is set up, safe to enable interrupts again. */
+- restore_flags(flags);
+-
+- /* If the DMA bulk channel isn't running, we need to restart it if it
+- has stopped at the last EP descriptor (DMA stopped because there was
+- no more traffic) or if it has stopped at a dummy EP with the intr flag
+- set (DMA stopped because we were too slow in inserting new traffic). */
+- if (!(*R_DMA_CH8_SUB0_CMD & IO_MASK(R_DMA_CH8_SUB0_CMD, cmd))) {
+-
+- USB_EP_Desc_t *ep;
+- ep = (USB_EP_Desc_t *)phys_to_virt(*R_DMA_CH8_SUB0_EP);
+- dbg_bulk("DMA channel not running in add");
+- dbg_bulk("DMA is at 0x%lx", (unsigned long)ep);
+-
+- if (*R_DMA_CH8_SUB0_EP == virt_to_phys(&TxBulkEPList[NBR_OF_EPIDS - 1]) ||
+- (ep->command & 0x8) >> 3) {
+- *R_DMA_CH8_SUB0_CMD = IO_STATE(R_DMA_CH8_SUB0_CMD, cmd, start);
+- /* Update/restart the bulk start timer since we just started the channel. */
+- mod_timer(&bulk_start_timer, jiffies + BULK_START_TIMER_INTERVAL);
+- /* Update/restart the bulk eot timer since we just inserted traffic. */
+- mod_timer(&bulk_eot_timer, jiffies + BULK_EOT_TIMER_INTERVAL);
+- }
+- }
+-
+- DBFEXIT;
+-}
+-
+-static void etrax_usb_complete_bulk_urb(struct urb *urb, int status)
+-{
+- etrax_urb_priv_t *urb_priv = (etrax_urb_priv_t *)urb->hcpriv;
+- int epid = urb_priv->epid;
+- unsigned long flags;
+-
+- DBFENTER;
+-
+- if (status)
+- warn("Completing bulk urb with status %d.", status);
+-
+- dbg_bulk("Completing bulk urb 0x%lx for epid %d", (unsigned long)urb, epid);
+-
+- /* Update the urb list. */
+- urb_list_del(urb, epid);
+-
+- /* For an IN pipe, we always set the actual length, regardless of whether there was
+- an error or not (which means the device driver can use the data if it wants to). */
+- if (usb_pipein(urb->pipe)) {
+- urb->actual_length = urb_priv->rx_offset;
+- } else {
+- /* Set actual_length for OUT urbs also; the USB mass storage driver seems
+- to want that. We wouldn't know of any partial writes if there was an error. */
+- if (status == 0) {
+- urb->actual_length = urb->transfer_buffer_length;
+- } else {
+- urb->actual_length = 0;
+- }
+- }
+-
+- /* FIXME: Is there something of the things below we shouldn't do if there was an error?
+- Like, maybe we shouldn't toggle the toggle bits, or maybe we shouldn't insert more traffic. */
+-
+- save_flags(flags);
+- cli();
+-
+- *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, epid);
+- nop();
+-
+- /* We need to fiddle with the toggle bits because the hardware doesn't do it for us. */
+- if (usb_pipeout(urb->pipe)) {
+- char toggle =
+- IO_EXTRACT(R_USB_EPT_DATA, t_out, *R_USB_EPT_DATA);
+- usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
+- usb_pipeout(urb->pipe), toggle);
+- } else {
+- char toggle =
+- IO_EXTRACT(R_USB_EPT_DATA, t_in, *R_USB_EPT_DATA);
+- usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
+- usb_pipeout(urb->pipe), toggle);
+- }
+- restore_flags(flags);
+-
+- /* Remember to free the SBs. */
+- etrax_remove_from_sb_list(urb);
+- kfree(urb_priv);
+- urb->hcpriv = 0;
+-
+- /* If there are any more urb's in the list we'd better start sending */
+- if (!urb_list_empty(epid)) {
+-
+- struct urb *new_urb;
+-
+- /* Get the first urb. */
+- new_urb = urb_list_first(epid);
+- assert(new_urb);
+-
+- dbg_bulk("More bulk for epid %d", epid);
+-
+- etrax_usb_add_to_bulk_sb_list(new_urb, epid);
+- }
+-
+- urb->status = status;
+-
+- /* We let any non-zero status from the layer above have precedence. */
+- if (status == 0) {
+- /* URB_SHORT_NOT_OK means that short reads (shorter than the endpoint's max length)
+- is to be treated as an error. */
+- if (urb->transfer_flags & URB_SHORT_NOT_OK) {
+- if (usb_pipein(urb->pipe) &&
+- (urb->actual_length !=
+- usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe)))) {
+- urb->status = -EREMOTEIO;
+- }
+- }
+- }
+-
+- if (urb->complete) {
+- urb->complete(urb, NULL);
+- }
+-
+- if (urb_list_empty(epid)) {
+- /* This means that this EP is now free, deconfigure it. */
+- etrax_usb_free_epid(epid);
+-
+- /* No more traffic; time to clean up.
+- Must set sub pointer to 0, since we look at the sub pointer when handling
+- the bulk eot interrupt. */
+-
+- dbg_bulk("No bulk for epid %d", epid);
+-
+- TxBulkEPList[epid].sub = 0;
+-
+- /* Unlink the dummy list. */
+-
+- dbg_bulk("Kicking dummy list out of party for urb 0x%lx, epid %d",
+- (unsigned long)urb, epid);
+-
+- /* No need to wait for the DMA before changing the next pointer.
+- The modulo NBR_OF_EPIDS isn't actually necessary, since we will never use
+- the last one (INVALID_EPID) for actual traffic. */
+- TxBulkEPList[epid].next =
+- virt_to_phys(&TxBulkEPList[(epid + 1) % NBR_OF_EPIDS]);
+- }
+-
+- DBFEXIT;
+-}
+-
+-static int etrax_usb_submit_ctrl_urb(struct urb *urb)
+-{
+- int epid;
+- int empty;
+- unsigned long flags;
+- etrax_urb_priv_t *urb_priv;
+-
+- DBFENTER;
+-
+- /* FIXME: Return -ENXIO if there is already a queued urb for this endpoint? */
+-
+- /* Epid allocation, empty check and list add must be protected.
+-
+- Epid allocation because if we find an existing epid for this endpoint an urb might be
+- completed (emptying the list) before we add the new urb to the list, causing the epid
+- to be de-allocated. We would then start the transfer with an invalid epid -> epid attn.
+-
+- Empty check and add because otherwise we might conclude that the list is not empty,
+- after which it becomes empty before we add the new urb to the list, causing us not to
+- insert the new traffic into the SB list. */
+-
+- spin_lock_irqsave(&urb_list_lock, flags);
+- epid = etrax_usb_setup_epid(urb);
+- if (epid == -1) {
+- spin_unlock_irqrestore(&urb_list_lock, flags);
+- DBFEXIT;
+- return -ENOMEM;
+- }
+- empty = urb_list_empty(epid);
+- urb_list_add(urb, epid);
+- spin_unlock_irqrestore(&urb_list_lock, flags);
+-
+- dbg_ctrl("Adding ctrl urb 0x%lx to %s list, epid %d",
+- (unsigned long)urb, empty ? "empty" : "", epid);
+-
+- /* Mark the urb as being in progress. */
+- urb->status = -EINPROGRESS;
+-
+- /* Setup the hcpriv data. */
+- urb_priv = kzalloc(sizeof(etrax_urb_priv_t), KMALLOC_FLAG);
+- assert(urb_priv != NULL);
+- /* This sets rx_offset to 0. */
+- urb_priv->urb_state = NOT_STARTED;
+- urb->hcpriv = urb_priv;
+-
+- if (empty) {
+- etrax_usb_add_to_ctrl_sb_list(urb, epid);
+- }
+-
+- DBFEXIT;
+-
+- return 0;
+-}
+-
+-static void etrax_usb_add_to_ctrl_sb_list(struct urb *urb, int epid)
+-{
+- USB_SB_Desc_t *sb_desc_setup;
+- USB_SB_Desc_t *sb_desc_data;
+- USB_SB_Desc_t *sb_desc_status;
+-
+- etrax_urb_priv_t *urb_priv = (etrax_urb_priv_t *)urb->hcpriv;
+-
+- unsigned long flags;
+- char maxlen;
+-
+- DBFENTER;
+-
+- maxlen = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe));
+-
+- sb_desc_setup = (USB_SB_Desc_t*)kmem_cache_alloc(usb_desc_cache, SLAB_FLAG);
+- assert(sb_desc_setup != NULL);
+- sb_desc_status = (USB_SB_Desc_t*)kmem_cache_alloc(usb_desc_cache, SLAB_FLAG);
+- assert(sb_desc_status != NULL);
+-
+- /* Initialize the mandatory setup SB descriptor (used only in control transfers) */
+- sb_desc_setup->sw_len = 8;
+- sb_desc_setup->command = (IO_FIELD(USB_SB_command, rem, 0) |
+- IO_STATE(USB_SB_command, tt, setup) |
+- IO_STATE(USB_SB_command, full, yes) |
+- IO_STATE(USB_SB_command, eot, yes));
+-
+- sb_desc_setup->buf = virt_to_phys(urb->setup_packet);
+-
+- if (usb_pipeout(urb->pipe)) {
+- dbg_ctrl("Transfer for epid %d is OUT", epid);
+-
+- /* If this Control OUT transfer has an optional data stage we add an OUT token
+- before the mandatory IN (status) token, hence the reordered SB list */
+-
+- sb_desc_setup->next = virt_to_phys(sb_desc_status);
+- if (urb->transfer_buffer) {
+-
+- dbg_ctrl("This OUT transfer has an extra data stage");
+-
+- sb_desc_data = (USB_SB_Desc_t*)kmem_cache_alloc(usb_desc_cache, SLAB_FLAG);
+- assert(sb_desc_data != NULL);
+-
+- sb_desc_setup->next = virt_to_phys(sb_desc_data);
+-
+- sb_desc_data->sw_len = urb->transfer_buffer_length;
+- sb_desc_data->command = (IO_STATE(USB_SB_command, tt, out) |
+- IO_STATE(USB_SB_command, full, yes) |
+- IO_STATE(USB_SB_command, eot, yes));
+- sb_desc_data->buf = virt_to_phys(urb->transfer_buffer);
+- sb_desc_data->next = virt_to_phys(sb_desc_status);
+- }
+-
+- sb_desc_status->sw_len = 1;
+- sb_desc_status->command = (IO_FIELD(USB_SB_command, rem, 0) |
+- IO_STATE(USB_SB_command, tt, in) |
+- IO_STATE(USB_SB_command, eot, yes) |
+- IO_STATE(USB_SB_command, intr, yes) |
+- IO_STATE(USB_SB_command, eol, yes));
+-
+- sb_desc_status->buf = 0;
+- sb_desc_status->next = 0;
+-
+- } else if (usb_pipein(urb->pipe)) {
+-
+- dbg_ctrl("Transfer for epid %d is IN", epid);
+- dbg_ctrl("transfer_buffer_length = %d", urb->transfer_buffer_length);
+- dbg_ctrl("rem is calculated to %d", urb->transfer_buffer_length % maxlen);
+-
+- sb_desc_data = (USB_SB_Desc_t*)kmem_cache_alloc(usb_desc_cache, SLAB_FLAG);
+- assert(sb_desc_data != NULL);
+-
+- sb_desc_setup->next = virt_to_phys(sb_desc_data);
+-
+- sb_desc_data->sw_len = urb->transfer_buffer_length ?
+- (urb->transfer_buffer_length - 1) / maxlen + 1 : 0;
+- dbg_ctrl("sw_len got %d", sb_desc_data->sw_len);
+-
+- sb_desc_data->command =
+- (IO_FIELD(USB_SB_command, rem,
+- urb->transfer_buffer_length % maxlen) |
+- IO_STATE(USB_SB_command, tt, in) |
+- IO_STATE(USB_SB_command, eot, yes));
+-
+- sb_desc_data->buf = 0;
+- sb_desc_data->next = virt_to_phys(sb_desc_status);
+-
+- /* Read comment at zout_buffer declaration for an explanation to this. */
+- sb_desc_status->sw_len = 1;
+- sb_desc_status->command = (IO_FIELD(USB_SB_command, rem, 0) |
+- IO_STATE(USB_SB_command, tt, zout) |
+- IO_STATE(USB_SB_command, full, yes) |
+- IO_STATE(USB_SB_command, eot, yes) |
+- IO_STATE(USB_SB_command, intr, yes) |
+- IO_STATE(USB_SB_command, eol, yes));
+-
+- sb_desc_status->buf = virt_to_phys(&zout_buffer[0]);
+- sb_desc_status->next = 0;
+- }
+-
+- urb_priv->first_sb = sb_desc_setup;
+- urb_priv->last_sb = sb_desc_status;
+- urb_priv->epid = epid;
+-
+- urb_priv->urb_state = STARTED;
+-
+- /* Reset toggle bits and reset error count, remember to di and ei */
+- /* Warning: it is possible that this locking doesn't work with bottom-halves */
+-
+- save_flags(flags);
+- cli();
+-
+- *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, epid);
+- nop();
+- if (*R_USB_EPT_DATA & IO_MASK(R_USB_EPT_DATA, hold)) {
+- panic("Hold was set in %s", __FUNCTION__);
+- }
+-
+-
+- /* FIXME: Compare with etrax_usb_add_to_bulk_sb_list where the toggle bits
+- are set to a specific value. Why the difference? Read "Transfer and Toggle Bits
+- in Designer's Reference, p. 8 - 11. */
+- *R_USB_EPT_DATA &=
+- ~(IO_MASK(R_USB_EPT_DATA, error_count_in) |
+- IO_MASK(R_USB_EPT_DATA, error_count_out) |
+- IO_MASK(R_USB_EPT_DATA, t_in) |
+- IO_MASK(R_USB_EPT_DATA, t_out));
+-
+- /* Since we use the rx interrupt to complete ctrl urbs, we can enable interrupts now
+- (i.e. we don't check the sub pointer on an eot interrupt like we do for bulk traffic). */
+- restore_flags(flags);
+-
+- /* Assert that the EP descriptor is disabled. */
+- assert(!(TxCtrlEPList[epid].command & IO_MASK(USB_EP_command, enable)));
+-
+- /* Set up and enable the EP descriptor. */
+- TxCtrlEPList[epid].sub = virt_to_phys(sb_desc_setup);
+- TxCtrlEPList[epid].hw_len = 0;
+- TxCtrlEPList[epid].command |= IO_STATE(USB_EP_command, enable, yes);
+-
+- /* We start the DMA sub channel without checking if it's running or not, because:
+- 1) If it's already running, issuing the start command is a nop.
+- 2) We avoid a test-and-set race condition. */
+- *R_DMA_CH8_SUB1_CMD = IO_STATE(R_DMA_CH8_SUB1_CMD, cmd, start);
+-
+- DBFEXIT;
+-}
+-
+-static void etrax_usb_complete_ctrl_urb(struct urb *urb, int status)
+-{
+- etrax_urb_priv_t *urb_priv = (etrax_urb_priv_t *)urb->hcpriv;
+- int epid = urb_priv->epid;
+-
+- DBFENTER;
+-
+- if (status)
+- warn("Completing ctrl urb with status %d.", status);
+-
+- dbg_ctrl("Completing ctrl epid %d, urb 0x%lx", epid, (unsigned long)urb);
+-
+- /* Remove this urb from the list. */
+- urb_list_del(urb, epid);
+-
+- /* For an IN pipe, we always set the actual length, regardless of whether there was
+- an error or not (which means the device driver can use the data if it wants to). */
+- if (usb_pipein(urb->pipe)) {
+- urb->actual_length = urb_priv->rx_offset;
+- }
+-
+- /* FIXME: Is there something of the things below we shouldn't do if there was an error?
+- Like, maybe we shouldn't insert more traffic. */
+-
+- /* Remember to free the SBs. */
+- etrax_remove_from_sb_list(urb);
+- kfree(urb_priv);
+- urb->hcpriv = 0;
+-
+- /* If there are any more urbs in the list we'd better start sending. */
+- if (!urb_list_empty(epid)) {
+- struct urb *new_urb;
+-
+- /* Get the first urb. */
+- new_urb = urb_list_first(epid);
+- assert(new_urb);
+-
+- dbg_ctrl("More ctrl for epid %d, first urb = 0x%lx", epid, (unsigned long)new_urb);
+-
+- etrax_usb_add_to_ctrl_sb_list(new_urb, epid);
+- }
+-
+- urb->status = status;
+-
+- /* We let any non-zero status from the layer above have precedence. */
+- if (status == 0) {
+- /* URB_SHORT_NOT_OK means that short reads (shorter than the endpoint's max length)
+- is to be treated as an error. */
+- if (urb->transfer_flags & URB_SHORT_NOT_OK) {
+- if (usb_pipein(urb->pipe) &&
+- (urb->actual_length !=
+- usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe)))) {
+- urb->status = -EREMOTEIO;
+- }
+- }
+- }
+-
+- if (urb->complete) {
+- urb->complete(urb, NULL);
+- }
+-
+- if (urb_list_empty(epid)) {
+- /* No more traffic. Time to clean up. */
+- etrax_usb_free_epid(epid);
+- /* Must set sub pointer to 0. */
+- dbg_ctrl("No ctrl for epid %d", epid);
+- TxCtrlEPList[epid].sub = 0;
+- }
+-
+- DBFEXIT;
+-}
+-
+-static int etrax_usb_submit_intr_urb(struct urb *urb)
+-{
+-
+- int epid;
+-
+- DBFENTER;
+-
+- if (usb_pipeout(urb->pipe)) {
+- /* Unsupported transfer type.
+- We don't support interrupt out traffic. (If we do, we can't support
+- intervals for neither in or out traffic, but are forced to schedule all
+- interrupt traffic in one frame.) */
+- return -EINVAL;
+- }
+-
+- epid = etrax_usb_setup_epid(urb);
+- if (epid == -1) {
+- DBFEXIT;
+- return -ENOMEM;
+- }
+-
+- if (!urb_list_empty(epid)) {
+- /* There is already a queued urb for this endpoint. */
+- etrax_usb_free_epid(epid);
+- return -ENXIO;
+- }
+-
+- urb->status = -EINPROGRESS;
+-
+- dbg_intr("Add intr urb 0x%lx, to list, epid %d", (unsigned long)urb, epid);
+-
+- urb_list_add(urb, epid);
+- etrax_usb_add_to_intr_sb_list(urb, epid);
+-
+- return 0;
+-
+- DBFEXIT;
+-}
+-
+-static void etrax_usb_add_to_intr_sb_list(struct urb *urb, int epid)
+-{
+-
+- volatile USB_EP_Desc_t *tmp_ep;
+- volatile USB_EP_Desc_t *first_ep;
+-
+- char maxlen;
+- int interval;
+- int i;
+-
+- etrax_urb_priv_t *urb_priv;
+-
+- DBFENTER;
+-
+- maxlen = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe));
+- interval = urb->interval;
+-
+- urb_priv = kzalloc(sizeof(etrax_urb_priv_t), KMALLOC_FLAG);
+- assert(urb_priv != NULL);
+- urb->hcpriv = urb_priv;
+-
+- first_ep = &TxIntrEPList[0];
+-
+- /* Round of the interval to 2^n, it is obvious that this code favours
+- smaller numbers, but that is actually a good thing */
+- /* FIXME: The "rounding error" for larger intervals will be quite
+- large. For in traffic this shouldn't be a problem since it will only
+- mean that we "poll" more often. */
+- for (i = 0; interval; i++) {
+- interval = interval >> 1;
+- }
+- interval = 1 << (i - 1);
+-
+- dbg_intr("Interval rounded to %d", interval);
+-
+- tmp_ep = first_ep;
+- i = 0;
+- do {
+- if (tmp_ep->command & IO_MASK(USB_EP_command, eof)) {
+- if ((i % interval) == 0) {
+- /* Insert the traffic ep after tmp_ep */
+- USB_EP_Desc_t *ep_desc;
+- USB_SB_Desc_t *sb_desc;
+-
+- dbg_intr("Inserting EP for epid %d", epid);
+-
+- ep_desc = (USB_EP_Desc_t *)
+- kmem_cache_alloc(usb_desc_cache, SLAB_FLAG);
+- sb_desc = (USB_SB_Desc_t *)
+- kmem_cache_alloc(usb_desc_cache, SLAB_FLAG);
+- assert(ep_desc != NULL);
+- CHECK_ALIGN(ep_desc);
+- assert(sb_desc != NULL);
+-
+- ep_desc->sub = virt_to_phys(sb_desc);
+- ep_desc->hw_len = 0;
+- ep_desc->command = (IO_FIELD(USB_EP_command, epid, epid) |
+- IO_STATE(USB_EP_command, enable, yes));
+-
+-
+- /* Round upwards the number of packets of size maxlen
+- that this SB descriptor should receive. */
+- sb_desc->sw_len = urb->transfer_buffer_length ?
+- (urb->transfer_buffer_length - 1) / maxlen + 1 : 0;
+- sb_desc->next = 0;
+- sb_desc->buf = 0;
+- sb_desc->command =
+- (IO_FIELD(USB_SB_command, rem, urb->transfer_buffer_length % maxlen) |
+- IO_STATE(USB_SB_command, tt, in) |
+- IO_STATE(USB_SB_command, eot, yes) |
+- IO_STATE(USB_SB_command, eol, yes));
+-
+- ep_desc->next = tmp_ep->next;
+- tmp_ep->next = virt_to_phys(ep_desc);
+- }
+- i++;
+- }
+- tmp_ep = (USB_EP_Desc_t *)phys_to_virt(tmp_ep->next);
+- } while (tmp_ep != first_ep);
+-
+-
+- /* Note that first_sb/last_sb doesn't apply to interrupt traffic. */
+- urb_priv->epid = epid;
+-
+- /* We start the DMA sub channel without checking if it's running or not, because:
+- 1) If it's already running, issuing the start command is a nop.
+- 2) We avoid a test-and-set race condition. */
+- *R_DMA_CH8_SUB2_CMD = IO_STATE(R_DMA_CH8_SUB2_CMD, cmd, start);
+-
+- DBFEXIT;
+-}
+-
+-
+-
+-static void etrax_usb_complete_intr_urb(struct urb *urb, int status)
+-{
+- etrax_urb_priv_t *urb_priv = (etrax_urb_priv_t *)urb->hcpriv;
+- int epid = urb_priv->epid;
+-
+- DBFENTER;
+-
+- if (status)
+- warn("Completing intr urb with status %d.", status);
+-
+- dbg_intr("Completing intr epid %d, urb 0x%lx", epid, (unsigned long)urb);
+-
+- urb->status = status;
+- urb->actual_length = urb_priv->rx_offset;
+-
+- dbg_intr("interrupt urb->actual_length = %d", urb->actual_length);
+-
+- /* We let any non-zero status from the layer above have precedence. */
+- if (status == 0) {
+- /* URB_SHORT_NOT_OK means that short reads (shorter than the endpoint's max length)
+- is to be treated as an error. */
+- if (urb->transfer_flags & URB_SHORT_NOT_OK) {
+- if (urb->actual_length !=
+- usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe))) {
+- urb->status = -EREMOTEIO;
+- }
+- }
+- }
+-
+- /* The driver will resubmit the URB so we need to remove it first */
+- etrax_usb_unlink_urb(urb, 0);
+- if (urb->complete) {
+- urb->complete(urb, NULL);
+- }
+-
+- DBFEXIT;
+-}
+-
+-
+-static int etrax_usb_submit_isoc_urb(struct urb *urb)
+-{
+- int epid;
+- unsigned long flags;
+-
+- DBFENTER;
+-
+- dbg_isoc("Submitting isoc urb = 0x%lx", (unsigned long)urb);
+-
+- /* Epid allocation, empty check and list add must be protected.
+- Read about this in etrax_usb_submit_ctrl_urb. */
+-
+- spin_lock_irqsave(&urb_list_lock, flags);
+- /* Is there an active epid for this urb ? */
+- epid = etrax_usb_setup_epid(urb);
+- if (epid == -1) {
+- DBFEXIT;
+- spin_unlock_irqrestore(&urb_list_lock, flags);
+- return -ENOMEM;
+- }
+-
+- /* Ok, now we got valid endpoint, lets insert some traffic */
+-
+- urb->status = -EINPROGRESS;
+-
+- /* Find the last urb in the URB_List and add this urb after that one.
+- Also add the traffic, that is do an etrax_usb_add_to_isoc_sb_list. This
+- is important to make this in "real time" since isochronous traffic is
+- time sensitive. */
+-
+- dbg_isoc("Adding isoc urb to (possibly empty) list");
+- urb_list_add(urb, epid);
+- etrax_usb_add_to_isoc_sb_list(urb, epid);
+- spin_unlock_irqrestore(&urb_list_lock, flags);
+-
+- DBFEXIT;
+-
+- return 0;
+-}
+-
+-static void etrax_usb_check_error_isoc_ep(const int epid)
+-{
+- unsigned long int flags;
+- int error_code;
+- __u32 r_usb_ept_data;
+-
+- /* We can't read R_USB_EPID_ATTN here since it would clear the iso_eof,
+- bulk_eot and epid_attn interrupts. So we just check the status of
+- the epid without testing if for it in R_USB_EPID_ATTN. */
+-
+-
+- save_flags(flags);
+- cli();
+- *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, epid);
+- nop();
+- /* Note that although there are separate R_USB_EPT_DATA and R_USB_EPT_DATA_ISO
+- registers, they are located at the same address and are of the same size.
+- In other words, this read should be ok for isoc also. */
+- r_usb_ept_data = *R_USB_EPT_DATA;
+- restore_flags(flags);
+-
+- error_code = IO_EXTRACT(R_USB_EPT_DATA_ISO, error_code, r_usb_ept_data);
+-
+- if (r_usb_ept_data & IO_MASK(R_USB_EPT_DATA, hold)) {
+- warn("Hold was set for epid %d.", epid);
+- return;
+- }
+-
+- if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA_ISO, error_code, no_error)) {
+-
+- /* This indicates that the SB list of the ept was completed before
+- new data was appended to it. This is not an error, but indicates
+- large system or USB load and could possibly cause trouble for
+- very timing sensitive USB device drivers so we log it.
+- */
+- info("Isoc. epid %d disabled with no error", epid);
+- return;
+-
+- } else if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA_ISO, error_code, stall)) {
+- /* Not really a protocol error, just says that the endpoint gave
+- a stall response. Note that error_code cannot be stall for isoc. */
+- panic("Isoc traffic cannot stall");
+-
+- } else if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA_ISO, error_code, bus_error)) {
+- /* Two devices responded to a transaction request. Must be resolved
+- by software. FIXME: Reset ports? */
+- panic("Bus error for epid %d."
+- " Two devices responded to transaction request",
+- epid);
+-
+- } else if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA, error_code, buffer_error)) {
+- /* DMA overrun or underrun. */
+- warn("Buffer overrun/underrun for epid %d. DMA too busy?", epid);
+-
+- /* It seems that error_code = buffer_error in
+- R_USB_EPT_DATA/R_USB_EPT_DATA_ISO and ourun = yes in R_USB_STATUS
+- are the same error. */
+- }
+-}
+-
+-
+-static void etrax_usb_add_to_isoc_sb_list(struct urb *urb, int epid)
+-{
+-
+- int i = 0;
+-
+- etrax_urb_priv_t *urb_priv;
+- USB_SB_Desc_t *prev_sb_desc, *next_sb_desc, *temp_sb_desc;
+-
+- DBFENTER;
+-
+- prev_sb_desc = next_sb_desc = temp_sb_desc = NULL;
+-
+- urb_priv = kzalloc(sizeof(etrax_urb_priv_t), GFP_ATOMIC);
+- assert(urb_priv != NULL);
+-
+- urb->hcpriv = urb_priv;
+- urb_priv->epid = epid;
+-
+- if (usb_pipeout(urb->pipe)) {
+-
+- if (urb->number_of_packets == 0) panic("etrax_usb_add_to_isoc_sb_list 0 packets\n");
+-
+- dbg_isoc("Transfer for epid %d is OUT", epid);
+- dbg_isoc("%d packets in URB", urb->number_of_packets);
+-
+- /* Create one SB descriptor for each packet and link them together. */
+- for (i = 0; i < urb->number_of_packets; i++) {
+- if (!urb->iso_frame_desc[i].length)
+- continue;
+-
+- next_sb_desc = (USB_SB_Desc_t*)kmem_cache_alloc(usb_desc_cache, SLAB_ATOMIC);
+- assert(next_sb_desc != NULL);
+-
+- if (urb->iso_frame_desc[i].length > 0) {
+-
+- next_sb_desc->command = (IO_STATE(USB_SB_command, tt, out) |
+- IO_STATE(USB_SB_command, eot, yes));
+-
+- next_sb_desc->sw_len = urb->iso_frame_desc[i].length;
+- next_sb_desc->buf = virt_to_phys((char*)urb->transfer_buffer + urb->iso_frame_desc[i].offset);
+-
+- /* Check if full length transfer. */
+- if (urb->iso_frame_desc[i].length ==
+- usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe))) {
+- next_sb_desc->command |= IO_STATE(USB_SB_command, full, yes);
+- }
+- } else {
+- dbg_isoc("zero len packet");
+- next_sb_desc->command = (IO_FIELD(USB_SB_command, rem, 0) |
+- IO_STATE(USB_SB_command, tt, zout) |
+- IO_STATE(USB_SB_command, eot, yes) |
+- IO_STATE(USB_SB_command, full, yes));
+-
+- next_sb_desc->sw_len = 1;
+- next_sb_desc->buf = virt_to_phys(&zout_buffer[0]);
+- }
+-
+- /* First SB descriptor that belongs to this urb */
+- if (i == 0)
+- urb_priv->first_sb = next_sb_desc;
+- else
+- prev_sb_desc->next = virt_to_phys(next_sb_desc);
+-
+- prev_sb_desc = next_sb_desc;
+- }
+-
+- next_sb_desc->command |= (IO_STATE(USB_SB_command, intr, yes) |
+- IO_STATE(USB_SB_command, eol, yes));
+- next_sb_desc->next = 0;
+- urb_priv->last_sb = next_sb_desc;
+-
+- } else if (usb_pipein(urb->pipe)) {
+-
+- dbg_isoc("Transfer for epid %d is IN", epid);
+- dbg_isoc("transfer_buffer_length = %d", urb->transfer_buffer_length);
+- dbg_isoc("rem is calculated to %d", urb->iso_frame_desc[urb->number_of_packets - 1].length);
+-
+- /* Note that in descriptors for periodic traffic are not consumed. This means that
+- the USB controller never propagates in the SB list. In other words, if there already
+- is an SB descriptor in the list for this EP we don't have to do anything. */
+- if (TxIsocEPList[epid].sub == 0) {
+- dbg_isoc("Isoc traffic not already running, allocating SB");
+-
+- next_sb_desc = (USB_SB_Desc_t*)kmem_cache_alloc(usb_desc_cache, SLAB_ATOMIC);
+- assert(next_sb_desc != NULL);
+-
+- next_sb_desc->command = (IO_STATE(USB_SB_command, tt, in) |
+- IO_STATE(USB_SB_command, eot, yes) |
+- IO_STATE(USB_SB_command, eol, yes));
+-
+- next_sb_desc->next = 0;
+- next_sb_desc->sw_len = 1; /* Actual number of packets is not relevant
+- for periodic in traffic as long as it is more
+- than zero. Set to 1 always. */
+- next_sb_desc->buf = 0;
+-
+- /* The rem field is don't care for isoc traffic, so we don't set it. */
+-
+- /* Only one SB descriptor that belongs to this urb. */
+- urb_priv->first_sb = next_sb_desc;
+- urb_priv->last_sb = next_sb_desc;
+-
+- } else {
+-
+- dbg_isoc("Isoc traffic already running, just setting first/last_sb");
+-
+- /* Each EP for isoc in will have only one SB descriptor, setup when submitting the
+- already active urb. Note that even though we may have several first_sb/last_sb
+- pointing at the same SB descriptor, they are freed only once (when the list has
+- become empty). */
+- urb_priv->first_sb = phys_to_virt(TxIsocEPList[epid].sub);
+- urb_priv->last_sb = phys_to_virt(TxIsocEPList[epid].sub);
+- return;
+- }
+-
+- }
+-
+- /* Find the spot to insert this urb and add it. */
+- if (TxIsocEPList[epid].sub == 0) {
+- /* First SB descriptor inserted in this list (in or out). */
+- dbg_isoc("Inserting SB desc first in list");
+- TxIsocEPList[epid].hw_len = 0;
+- TxIsocEPList[epid].sub = virt_to_phys(urb_priv->first_sb);
+-
+- } else {
+- /* Isochronous traffic is already running, insert new traffic last (only out). */
+- dbg_isoc("Inserting SB desc last in list");
+- temp_sb_desc = phys_to_virt(TxIsocEPList[epid].sub);
+- while ((temp_sb_desc->command & IO_MASK(USB_SB_command, eol)) !=
+- IO_STATE(USB_SB_command, eol, yes)) {
+- assert(temp_sb_desc->next);
+- temp_sb_desc = phys_to_virt(temp_sb_desc->next);
+- }
+- dbg_isoc("Appending list on desc 0x%p", temp_sb_desc);
+-
+- /* Next pointer must be set before eol is removed. */
+- temp_sb_desc->next = virt_to_phys(urb_priv->first_sb);
+- /* Clear the previous end of list flag since there is a new in the
+- added SB descriptor list. */
+- temp_sb_desc->command &= ~IO_MASK(USB_SB_command, eol);
+-
+- if (!(TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable))) {
+- /* 8.8.5 in Designer's Reference says we should check for and correct
+- any errors in the EP here. That should not be necessary if epid_attn
+- is handled correctly, so we assume all is ok. */
+- dbg_isoc("EP disabled");
+- etrax_usb_check_error_isoc_ep(epid);
+-
+- /* The SB list was exhausted. */
+- if (virt_to_phys(urb_priv->last_sb) != TxIsocEPList[epid].sub) {
+- /* The new sublist did not get processed before the EP was
+- disabled. Setup the EP again. */
+- dbg_isoc("Set EP sub to new list");
+- TxIsocEPList[epid].hw_len = 0;
+- TxIsocEPList[epid].sub = virt_to_phys(urb_priv->first_sb);
+- }
+- }
+- }
+-
+- if (urb->transfer_flags & URB_ISO_ASAP) {
+- /* The isoc transfer should be started as soon as possible. The start_frame
+- field is a return value if URB_ISO_ASAP was set. Comparing R_USB_FM_NUMBER
+- with a USB Chief trace shows that the first isoc IN token is sent 2 frames
+- later. I'm not sure how this affects usage of the start_frame field by the
+- device driver, or how it affects things when USB_ISO_ASAP is not set, so
+- therefore there's no compensation for the 2 frame "lag" here. */
+- urb->start_frame = (*R_USB_FM_NUMBER & 0x7ff);
+- TxIsocEPList[epid].command |= IO_STATE(USB_EP_command, enable, yes);
+- urb_priv->urb_state = STARTED;
+- dbg_isoc("URB_ISO_ASAP set, urb->start_frame set to %d", urb->start_frame);
+- } else {
+- /* Not started yet. */
+- urb_priv->urb_state = NOT_STARTED;
+- dbg_isoc("urb_priv->urb_state set to NOT_STARTED");
+- }
+-
+- /* We start the DMA sub channel without checking if it's running or not, because:
+- 1) If it's already running, issuing the start command is a nop.
+- 2) We avoid a test-and-set race condition. */
+- *R_DMA_CH8_SUB3_CMD = IO_STATE(R_DMA_CH8_SUB3_CMD, cmd, start);
+-
+- DBFEXIT;
+-}
+-
+-static void etrax_usb_complete_isoc_urb(struct urb *urb, int status)
+-{
+- etrax_urb_priv_t *urb_priv = (etrax_urb_priv_t *)urb->hcpriv;
+- int epid = urb_priv->epid;
+- int auto_resubmit = 0;
+-
+- DBFENTER;
+- dbg_isoc("complete urb 0x%p, status %d", urb, status);
+-
+- if (status)
+- warn("Completing isoc urb with status %d.", status);
+-
+- if (usb_pipein(urb->pipe)) {
+- int i;
+-
+- /* Make that all isoc packets have status and length set before
+- completing the urb. */
+- for (i = urb_priv->isoc_packet_counter; i < urb->number_of_packets; i++) {
+- urb->iso_frame_desc[i].actual_length = 0;
+- urb->iso_frame_desc[i].status = -EPROTO;
+- }
+-
+- urb_list_del(urb, epid);
+-
+- if (!list_empty(&urb_list[epid])) {
+- ((etrax_urb_priv_t *)(urb_list_first(epid)->hcpriv))->urb_state = STARTED;
+- } else {
+- unsigned long int flags;
+- if (TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
+- /* The EP was enabled, disable it and wait. */
+- TxIsocEPList[epid].command &= ~IO_MASK(USB_EP_command, enable);
+-
+- /* Ah, the luxury of busy-wait. */
+- while (*R_DMA_CH8_SUB3_EP == virt_to_phys(&TxIsocEPList[epid]));
+- }
+-
+- etrax_remove_from_sb_list(urb);
+- TxIsocEPList[epid].sub = 0;
+- TxIsocEPList[epid].hw_len = 0;
+-
+- save_flags(flags);
+- cli();
+- etrax_usb_free_epid(epid);
+- restore_flags(flags);
+- }
+-
+- urb->hcpriv = 0;
+- kfree(urb_priv);
+-
+- /* Release allocated bandwidth. */
+- usb_release_bandwidth(urb->dev, urb, 0);
+- } else if (usb_pipeout(urb->pipe)) {
+- int freed_descr;
+-
+- dbg_isoc("Isoc out urb complete 0x%p", urb);
+-
+- /* Update the urb list. */
+- urb_list_del(urb, epid);
+-
+- freed_descr = etrax_remove_from_sb_list(urb);
+- dbg_isoc("freed %d descriptors of %d packets", freed_descr, urb->number_of_packets);
+- assert(freed_descr == urb->number_of_packets);
+- urb->hcpriv = 0;
+- kfree(urb_priv);
+-
+- /* Release allocated bandwidth. */
+- usb_release_bandwidth(urb->dev, urb, 0);
+- }
+-
+- urb->status = status;
+- if (urb->complete) {
+- urb->complete(urb, NULL);
+- }
+-
+- if (auto_resubmit) {
+- /* Check that urb was not unlinked by the complete callback. */
+- if (__urb_list_entry(urb, epid)) {
+- /* Move this one down the list. */
+- urb_list_move_last(urb, epid);
+-
+- /* Mark the now first urb as started (may already be). */
+- ((etrax_urb_priv_t *)(urb_list_first(epid)->hcpriv))->urb_state = STARTED;
+-
+- /* Must set this to 0 since this urb is still active after
+- completion. */
+- urb_priv->isoc_packet_counter = 0;
+- } else {
+- warn("(ISOC) automatic resubmit urb 0x%p removed by complete.", urb);
+- }
+- }
+-
+- DBFEXIT;
+-}
+-
+-static void etrax_usb_complete_urb(struct urb *urb, int status)
+-{
+- switch (usb_pipetype(urb->pipe)) {
+- case PIPE_BULK:
+- etrax_usb_complete_bulk_urb(urb, status);
+- break;
+- case PIPE_CONTROL:
+- etrax_usb_complete_ctrl_urb(urb, status);
+- break;
+- case PIPE_INTERRUPT:
+- etrax_usb_complete_intr_urb(urb, status);
+- break;
+- case PIPE_ISOCHRONOUS:
+- etrax_usb_complete_isoc_urb(urb, status);
+- break;
+- default:
+- err("Unknown pipetype");
+- }
+-}
+-
+-
+-
+-static irqreturn_t etrax_usb_hc_interrupt_top_half(int irq, void *vhc)
+-{
+- usb_interrupt_registers_t *reg;
+- unsigned long flags;
+- __u32 irq_mask;
+- __u8 status;
+- __u32 epid_attn;
+- __u16 port_status_1;
+- __u16 port_status_2;
+- __u32 fm_number;
+-
+- DBFENTER;
+-
+- /* Read critical registers into local variables, do kmalloc afterwards. */
+- save_flags(flags);
+- cli();
+-
+- irq_mask = *R_USB_IRQ_MASK_READ;
+- /* Reading R_USB_STATUS clears the ctl_status interrupt. Note that R_USB_STATUS
+- must be read before R_USB_EPID_ATTN since reading the latter clears the
+- ourun and perror fields of R_USB_STATUS. */
+- status = *R_USB_STATUS;
+-
+- /* Reading R_USB_EPID_ATTN clears the iso_eof, bulk_eot and epid_attn interrupts. */
+- epid_attn = *R_USB_EPID_ATTN;
+-
+- /* Reading R_USB_RH_PORT_STATUS_1 and R_USB_RH_PORT_STATUS_2 clears the
+- port_status interrupt. */
+- port_status_1 = *R_USB_RH_PORT_STATUS_1;
+- port_status_2 = *R_USB_RH_PORT_STATUS_2;
+-
+- /* Reading R_USB_FM_NUMBER clears the sof interrupt. */
+- /* Note: the lower 11 bits contain the actual frame number, sent with each sof. */
+- fm_number = *R_USB_FM_NUMBER;
+-
+- restore_flags(flags);
+-
+- reg = (usb_interrupt_registers_t *)kmem_cache_alloc(top_half_reg_cache, SLAB_ATOMIC);
+-
+- assert(reg != NULL);
+-
+- reg->hc = (etrax_hc_t *)vhc;
+-
+- /* Now put register values into kmalloc'd area. */
+- reg->r_usb_irq_mask_read = irq_mask;
+- reg->r_usb_status = status;
+- reg->r_usb_epid_attn = epid_attn;
+- reg->r_usb_rh_port_status_1 = port_status_1;
+- reg->r_usb_rh_port_status_2 = port_status_2;
+- reg->r_usb_fm_number = fm_number;
+-
+- INIT_WORK(&reg->usb_bh, etrax_usb_hc_interrupt_bottom_half, reg);
+- schedule_work(&reg->usb_bh);
+-
+- DBFEXIT;
+-
+- return IRQ_HANDLED;
+-}
+-
+-static void etrax_usb_hc_interrupt_bottom_half(void *data)
+-{
+- usb_interrupt_registers_t *reg = (usb_interrupt_registers_t *)data;
+- __u32 irq_mask = reg->r_usb_irq_mask_read;
+-
+- DBFENTER;
+-
+- /* Interrupts are handled in order of priority. */
+- if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, epid_attn)) {
+- etrax_usb_hc_epid_attn_interrupt(reg);
+- }
+- if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, port_status)) {
+- etrax_usb_hc_port_status_interrupt(reg);
+- }
+- if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, ctl_status)) {
+- etrax_usb_hc_ctl_status_interrupt(reg);
+- }
+- if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, iso_eof)) {
+- etrax_usb_hc_isoc_eof_interrupt();
+- }
+- if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, bulk_eot)) {
+- /* Update/restart the bulk start timer since obviously the channel is running. */
+- mod_timer(&bulk_start_timer, jiffies + BULK_START_TIMER_INTERVAL);
+- /* Update/restart the bulk eot timer since we just received an bulk eot interrupt. */
+- mod_timer(&bulk_eot_timer, jiffies + BULK_EOT_TIMER_INTERVAL);
+-
+- etrax_usb_hc_bulk_eot_interrupt(0);
+- }
+-
+- kmem_cache_free(top_half_reg_cache, reg);
+-
+- DBFEXIT;
+-}
+-
+-
+-void etrax_usb_hc_isoc_eof_interrupt(void)
+-{
+- struct urb *urb;
+- etrax_urb_priv_t *urb_priv;
+- int epid;
+- unsigned long flags;
+-
+- DBFENTER;
+-
+- /* Do not check the invalid epid (it has a valid sub pointer). */
+- for (epid = 0; epid < NBR_OF_EPIDS - 1; epid++) {
+-
+- /* Do not check the invalid epid (it has a valid sub pointer). */
+- if ((epid == DUMMY_EPID) || (epid == INVALID_EPID))
+- continue;
+-
+- /* Disable interrupts to block the isoc out descriptor interrupt handler
+- from being called while the isoc EPID list is being checked.
+- */
+- save_flags(flags);
+- cli();
+-
+- if (TxIsocEPList[epid].sub == 0) {
+- /* Nothing here to see. */
+- restore_flags(flags);
+- continue;
+- }
+-
+- /* Get the first urb (if any). */
+- urb = urb_list_first(epid);
+- if (urb == 0) {
+- warn("Ignoring NULL urb");
+- restore_flags(flags);
+- continue;
+- }
+- if (usb_pipein(urb->pipe)) {
+-
+- /* Sanity check. */
+- assert(usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS);
+-
+- urb_priv = (etrax_urb_priv_t *)urb->hcpriv;
+- assert(urb_priv);
+-
+- if (urb_priv->urb_state == NOT_STARTED) {
+-
+- /* If ASAP is not set and urb->start_frame is the current frame,
+- start the transfer. */
+- if (!(urb->transfer_flags & URB_ISO_ASAP) &&
+- (urb->start_frame == (*R_USB_FM_NUMBER & 0x7ff))) {
+-
+- dbg_isoc("Enabling isoc IN EP descr for epid %d", epid);
+- TxIsocEPList[epid].command |= IO_STATE(USB_EP_command, enable, yes);
+-
+- /* This urb is now active. */
+- urb_priv->urb_state = STARTED;
+- continue;
+- }
+- }
+- }
+- restore_flags(flags);
+- }
+-
+- DBFEXIT;
+-
+-}
+-
+-void etrax_usb_hc_bulk_eot_interrupt(int timer_induced)
+-{
+- int epid;
+-
+- /* The technique is to run one urb at a time, wait for the eot interrupt at which
+- point the EP descriptor has been disabled. */
+-
+- DBFENTER;
+- dbg_bulk("bulk eot%s", timer_induced ? ", called by timer" : "");
+-
+- for (epid = 0; epid < NBR_OF_EPIDS; epid++) {
+-
+- if (!(TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)) &&
+- (TxBulkEPList[epid].sub != 0)) {
+-
+- struct urb *urb;
+- etrax_urb_priv_t *urb_priv;
+- unsigned long flags;
+- __u32 r_usb_ept_data;
+-
+- /* Found a disabled EP descriptor which has a non-null sub pointer.
+- Verify that this ctrl EP descriptor got disabled no errors.
+- FIXME: Necessary to check error_code? */
+- dbg_bulk("for epid %d?", epid);
+-
+- /* Get the first urb. */
+- urb = urb_list_first(epid);
+-
+- /* FIXME: Could this happen for valid reasons? Why did it disappear? Because of
+- wrong unlinking? */
+- if (!urb) {
+- warn("NULL urb for epid %d", epid);
+- continue;
+- }
+-
+- assert(urb);
+- urb_priv = (etrax_urb_priv_t *)urb->hcpriv;
+- assert(urb_priv);
+-
+- /* Sanity checks. */
+- assert(usb_pipetype(urb->pipe) == PIPE_BULK);
+- if (phys_to_virt(TxBulkEPList[epid].sub) != urb_priv->last_sb) {
+- err("bulk endpoint got disabled before reaching last sb");
+- }
+-
+- /* For bulk IN traffic, there seems to be a race condition between
+- between the bulk eot and eop interrupts, or rather an uncertainty regarding
+- the order in which they happen. Normally we expect the eop interrupt from
+- DMA channel 9 to happen before the eot interrupt.
+-
+- Therefore, we complete the bulk IN urb in the rx interrupt handler instead. */
+-
+- if (usb_pipein(urb->pipe)) {
+- dbg_bulk("in urb, continuing");
+- continue;
+- }
+-
+- save_flags(flags);
+- cli();
+- *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, epid);
+- nop();
+- r_usb_ept_data = *R_USB_EPT_DATA;
+- restore_flags(flags);
+-
+- if (IO_EXTRACT(R_USB_EPT_DATA, error_code, r_usb_ept_data) ==
+- IO_STATE_VALUE(R_USB_EPT_DATA, error_code, no_error)) {
+- /* This means that the endpoint has no error, is disabled
+- and had inserted traffic, i.e. transfer successfully completed. */
+- etrax_usb_complete_bulk_urb(urb, 0);
+- } else {
+- /* Shouldn't happen. We expect errors to be caught by epid attention. */
+- err("Found disabled bulk EP desc, error_code != no_error");
+- }
+- }
+- }
+-
+- /* Normally, we should find (at least) one disabled EP descriptor with a valid sub pointer.
+- However, because of the uncertainty in the deliverance of the eop/eot interrupts, we may
+- not. Also, we might find two disabled EPs when handling an eot interrupt, and then find
+- none the next time. */
+-
+- DBFEXIT;
+-
+-}
+-
+-void etrax_usb_hc_epid_attn_interrupt(usb_interrupt_registers_t *reg)
+-{
+- /* This function handles the epid attention interrupt. There are a variety of reasons
+- for this interrupt to happen (Designer's Reference, p. 8 - 22 for the details):
+-
+- invalid ep_id - Invalid epid in an EP (EP disabled).
+- stall - Not strictly an error condition (EP disabled).
+- 3rd error - Three successive transaction errors (EP disabled).
+- buffer ourun - Buffer overrun or underrun (EP disabled).
+- past eof1 - Intr or isoc transaction proceeds past EOF1.
+- near eof - Intr or isoc transaction would not fit inside the frame.
+- zout transfer - If zout transfer for a bulk endpoint (EP disabled).
+- setup transfer - If setup transfer for a non-ctrl endpoint (EP disabled). */
+-
+- int epid;
+-
+-
+- DBFENTER;
+-
+- assert(reg != NULL);
+-
+- /* Note that we loop through all epids. We still want to catch errors for
+- the invalid one, even though we might handle them differently. */
+- for (epid = 0; epid < NBR_OF_EPIDS; epid++) {
+-
+- if (test_bit(epid, (void *)&reg->r_usb_epid_attn)) {
+-
+- struct urb *urb;
+- __u32 r_usb_ept_data;
+- unsigned long flags;
+- int error_code;
+-
+- save_flags(flags);
+- cli();
+- *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, epid);
+- nop();
+- /* Note that although there are separate R_USB_EPT_DATA and R_USB_EPT_DATA_ISO
+- registers, they are located at the same address and are of the same size.
+- In other words, this read should be ok for isoc also. */
+- r_usb_ept_data = *R_USB_EPT_DATA;
+- restore_flags(flags);
+-
+- /* First some sanity checks. */
+- if (epid == INVALID_EPID) {
+- /* FIXME: What if it became disabled? Could seriously hurt interrupt
+- traffic. (Use do_intr_recover.) */
+- warn("Got epid_attn for INVALID_EPID (%d).", epid);
+- err("R_USB_EPT_DATA = 0x%x", r_usb_ept_data);
+- err("R_USB_STATUS = 0x%x", reg->r_usb_status);
+- continue;
+- } else if (epid == DUMMY_EPID) {
+- /* We definitely don't care about these ones. Besides, they are
+- always disabled, so any possible disabling caused by the
+- epid attention interrupt is irrelevant. */
+- warn("Got epid_attn for DUMMY_EPID (%d).", epid);
+- continue;
+- }
+-
+- /* Get the first urb in the urb list for this epid. We blatantly assume
+- that only the first urb could have caused the epid attention.
+- (For bulk and ctrl, only one urb is active at any one time. For intr
+- and isoc we remove them once they are completed.) */
+- urb = urb_list_first(epid);
+-
+- if (urb == NULL) {
+- err("Got epid_attn for epid %i with no urb.", epid);
+- err("R_USB_EPT_DATA = 0x%x", r_usb_ept_data);
+- err("R_USB_STATUS = 0x%x", reg->r_usb_status);
+- continue;
+- }
+-
+- switch (usb_pipetype(urb->pipe)) {
+- case PIPE_BULK:
+- warn("Got epid attn for bulk endpoint, epid %d", epid);
+- break;
+- case PIPE_CONTROL:
+- warn("Got epid attn for control endpoint, epid %d", epid);
+- break;
+- case PIPE_INTERRUPT:
+- warn("Got epid attn for interrupt endpoint, epid %d", epid);
+- break;
+- case PIPE_ISOCHRONOUS:
+- warn("Got epid attn for isochronous endpoint, epid %d", epid);
+- break;
+- }
+-
+- if (usb_pipetype(urb->pipe) != PIPE_ISOCHRONOUS) {
+- if (r_usb_ept_data & IO_MASK(R_USB_EPT_DATA, hold)) {
+- warn("Hold was set for epid %d.", epid);
+- continue;
+- }
+- }
+-
+- /* Even though error_code occupies bits 22 - 23 in both R_USB_EPT_DATA and
+- R_USB_EPT_DATA_ISOC, we separate them here so we don't forget in other places. */
+- if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
+- error_code = IO_EXTRACT(R_USB_EPT_DATA_ISO, error_code, r_usb_ept_data);
+- } else {
+- error_code = IO_EXTRACT(R_USB_EPT_DATA, error_code, r_usb_ept_data);
+- }
+-
+- /* Using IO_STATE_VALUE on R_USB_EPT_DATA should be ok for isoc also. */
+- if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA, error_code, no_error)) {
+-
+- /* Isoc traffic doesn't have error_count_in/error_count_out. */
+- if ((usb_pipetype(urb->pipe) != PIPE_ISOCHRONOUS) &&
+- (IO_EXTRACT(R_USB_EPT_DATA, error_count_in, r_usb_ept_data) == 3 ||
+- IO_EXTRACT(R_USB_EPT_DATA, error_count_out, r_usb_ept_data) == 3)) {
+- /* 3rd error. */
+- warn("3rd error for epid %i", epid);
+- etrax_usb_complete_urb(urb, -EPROTO);
+-
+- } else if (reg->r_usb_status & IO_MASK(R_USB_STATUS, perror)) {
+-
+- warn("Perror for epid %d", epid);
+-
+- if (!(r_usb_ept_data & IO_MASK(R_USB_EPT_DATA, valid))) {
+- /* invalid ep_id */
+- panic("Perror because of invalid epid."
+- " Deconfigured too early?");
+- } else {
+- /* past eof1, near eof, zout transfer, setup transfer */
+-
+- /* Dump the urb and the relevant EP descriptor list. */
+-
+- __dump_urb(urb);
+- __dump_ept_data(epid);
+- __dump_ep_list(usb_pipetype(urb->pipe));
+-
+- panic("Something wrong with DMA descriptor contents."
+- " Too much traffic inserted?");
+- }
+- } else if (reg->r_usb_status & IO_MASK(R_USB_STATUS, ourun)) {
+- /* buffer ourun */
+- panic("Buffer overrun/underrun for epid %d. DMA too busy?", epid);
+- }
+-
+- } else if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA, error_code, stall)) {
+- /* Not really a protocol error, just says that the endpoint gave
+- a stall response. Note that error_code cannot be stall for isoc. */
+- if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
+- panic("Isoc traffic cannot stall");
+- }
+-
+- warn("Stall for epid %d", epid);
+- etrax_usb_complete_urb(urb, -EPIPE);
+-
+- } else if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA, error_code, bus_error)) {
+- /* Two devices responded to a transaction request. Must be resolved
+- by software. FIXME: Reset ports? */
+- panic("Bus error for epid %d."
+- " Two devices responded to transaction request",
+- epid);
+-
+- } else if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA, error_code, buffer_error)) {
+- /* DMA overrun or underrun. */
+- warn("Buffer overrun/underrun for epid %d. DMA too busy?", epid);
+-
+- /* It seems that error_code = buffer_error in
+- R_USB_EPT_DATA/R_USB_EPT_DATA_ISO and ourun = yes in R_USB_STATUS
+- are the same error. */
+- etrax_usb_complete_urb(urb, -EPROTO);
+- }
+- }
+- }
+-
+- DBFEXIT;
+-
+-}
+-
+-void etrax_usb_bulk_start_timer_func(unsigned long dummy)
+-{
+-
+- /* We might enable an EP descriptor behind the current DMA position when it's about
+- to decide that there are no more bulk traffic and it should stop the bulk channel.
+- Therefore we periodically check if the bulk channel is stopped and there is an
+- enabled bulk EP descriptor, in which case we start the bulk channel. */
+- dbg_bulk("bulk_start_timer timed out.");
+-
+- if (!(*R_DMA_CH8_SUB0_CMD & IO_MASK(R_DMA_CH8_SUB0_CMD, cmd))) {
+- int epid;
+-
+- dbg_bulk("Bulk DMA channel not running.");
+-
+- for (epid = 0; epid < NBR_OF_EPIDS; epid++) {
+- if (TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
+- dbg_bulk("Found enabled EP for epid %d, starting bulk channel.\n",
+- epid);
+- *R_DMA_CH8_SUB0_CMD = IO_STATE(R_DMA_CH8_SUB0_CMD, cmd, start);
+-
+- /* Restart the bulk eot timer since we just started the bulk channel. */
+- mod_timer(&bulk_eot_timer, jiffies + BULK_EOT_TIMER_INTERVAL);
+-
+- /* No need to search any further. */
+- break;
+- }
+- }
+- } else {
+- dbg_bulk("Bulk DMA channel running.");
+- }
+-}
+-
+-void etrax_usb_hc_port_status_interrupt(usb_interrupt_registers_t *reg)
+-{
+- etrax_hc_t *hc = reg->hc;
+- __u16 r_usb_rh_port_status_1 = reg->r_usb_rh_port_status_1;
+- __u16 r_usb_rh_port_status_2 = reg->r_usb_rh_port_status_2;
+-
+- DBFENTER;
+-
+- /* The Etrax RH does not include a wPortChange register, so this has to be handled in software
+- (by saving the old port status value for comparison when the port status interrupt happens).
+- See section 11.16.2.6.2 in the USB 1.1 spec for details. */
+-
+- dbg_rh("hc->rh.prev_wPortStatus_1 = 0x%x", hc->rh.prev_wPortStatus_1);
+- dbg_rh("hc->rh.prev_wPortStatus_2 = 0x%x", hc->rh.prev_wPortStatus_2);
+- dbg_rh("r_usb_rh_port_status_1 = 0x%x", r_usb_rh_port_status_1);
+- dbg_rh("r_usb_rh_port_status_2 = 0x%x", r_usb_rh_port_status_2);
+-
+- /* C_PORT_CONNECTION is set on any transition. */
+- hc->rh.wPortChange_1 |=
+- ((r_usb_rh_port_status_1 & (1 << RH_PORT_CONNECTION)) !=
+- (hc->rh.prev_wPortStatus_1 & (1 << RH_PORT_CONNECTION))) ?
+- (1 << RH_PORT_CONNECTION) : 0;
+-
+- hc->rh.wPortChange_2 |=
+- ((r_usb_rh_port_status_2 & (1 << RH_PORT_CONNECTION)) !=
+- (hc->rh.prev_wPortStatus_2 & (1 << RH_PORT_CONNECTION))) ?
+- (1 << RH_PORT_CONNECTION) : 0;
+-
+- /* C_PORT_ENABLE is _only_ set on a one to zero transition, i.e. when
+- the port is disabled, not when it's enabled. */
+- hc->rh.wPortChange_1 |=
+- ((hc->rh.prev_wPortStatus_1 & (1 << RH_PORT_ENABLE))
+- && !(r_usb_rh_port_status_1 & (1 << RH_PORT_ENABLE))) ?
+- (1 << RH_PORT_ENABLE) : 0;
+-
+- hc->rh.wPortChange_2 |=
+- ((hc->rh.prev_wPortStatus_2 & (1 << RH_PORT_ENABLE))
+- && !(r_usb_rh_port_status_2 & (1 << RH_PORT_ENABLE))) ?
+- (1 << RH_PORT_ENABLE) : 0;
+-
+- /* C_PORT_SUSPEND is set to one when the device has transitioned out
+- of the suspended state, i.e. when suspend goes from one to zero. */
+- hc->rh.wPortChange_1 |=
+- ((hc->rh.prev_wPortStatus_1 & (1 << RH_PORT_SUSPEND))
+- && !(r_usb_rh_port_status_1 & (1 << RH_PORT_SUSPEND))) ?
+- (1 << RH_PORT_SUSPEND) : 0;
+-
+- hc->rh.wPortChange_2 |=
+- ((hc->rh.prev_wPortStatus_2 & (1 << RH_PORT_SUSPEND))
+- && !(r_usb_rh_port_status_2 & (1 << RH_PORT_SUSPEND))) ?
+- (1 << RH_PORT_SUSPEND) : 0;
+-
+-
+- /* C_PORT_RESET is set when reset processing on this port is complete. */
+- hc->rh.wPortChange_1 |=
+- ((hc->rh.prev_wPortStatus_1 & (1 << RH_PORT_RESET))
+- && !(r_usb_rh_port_status_1 & (1 << RH_PORT_RESET))) ?
+- (1 << RH_PORT_RESET) : 0;
+-
+- hc->rh.wPortChange_2 |=
+- ((hc->rh.prev_wPortStatus_2 & (1 << RH_PORT_RESET))
+- && !(r_usb_rh_port_status_2 & (1 << RH_PORT_RESET))) ?
+- (1 << RH_PORT_RESET) : 0;
+-
+- /* Save the new values for next port status change. */
+- hc->rh.prev_wPortStatus_1 = r_usb_rh_port_status_1;
+- hc->rh.prev_wPortStatus_2 = r_usb_rh_port_status_2;
+-
+- dbg_rh("hc->rh.wPortChange_1 set to 0x%x", hc->rh.wPortChange_1);
+- dbg_rh("hc->rh.wPortChange_2 set to 0x%x", hc->rh.wPortChange_2);
+-
+- DBFEXIT;
+-
+-}
+-
+-void etrax_usb_hc_ctl_status_interrupt(usb_interrupt_registers_t *reg)
+-{
+- DBFENTER;
+-
+- /* FIXME: What should we do if we get ourun or perror? Dump the EP and SB
+- list for the corresponding epid? */
+- if (reg->r_usb_status & IO_MASK(R_USB_STATUS, ourun)) {
+- panic("USB controller got ourun.");
+- }
+- if (reg->r_usb_status & IO_MASK(R_USB_STATUS, perror)) {
+-
+- /* Before, etrax_usb_do_intr_recover was called on this epid if it was
+- an interrupt pipe. I don't see how re-enabling all EP descriptors
+- will help if there was a programming error. */
+- panic("USB controller got perror.");
+- }
+-
+- if (reg->r_usb_status & IO_MASK(R_USB_STATUS, device_mode)) {
+- /* We should never operate in device mode. */
+- panic("USB controller in device mode.");
+- }
+-
+- /* These if-statements could probably be nested. */
+- if (reg->r_usb_status & IO_MASK(R_USB_STATUS, host_mode)) {
+- info("USB controller in host mode.");
+- }
+- if (reg->r_usb_status & IO_MASK(R_USB_STATUS, started)) {
+- info("USB controller started.");
+- }
+- if (reg->r_usb_status & IO_MASK(R_USB_STATUS, running)) {
+- info("USB controller running.");
+- }
+-
+- DBFEXIT;
+-
+-}
+-
+-
+-static int etrax_rh_submit_urb(struct urb *urb)
+-{
+- struct usb_device *usb_dev = urb->dev;
+- etrax_hc_t *hc = usb_dev->bus->hcpriv;
+- unsigned int pipe = urb->pipe;
+- struct usb_ctrlrequest *cmd = (struct usb_ctrlrequest *) urb->setup_packet;
+- void *data = urb->transfer_buffer;
+- int leni = urb->transfer_buffer_length;
+- int len = 0;
+- int stat = 0;
+-
+- __u16 bmRType_bReq;
+- __u16 wValue;
+- __u16 wIndex;
+- __u16 wLength;
+-
+- DBFENTER;
+-
+- /* FIXME: What is this interrupt urb that is sent to the root hub? */
+- if (usb_pipetype (pipe) == PIPE_INTERRUPT) {
+- dbg_rh("Root-Hub submit IRQ: every %d ms", urb->interval);
+- hc->rh.urb = urb;
+- hc->rh.send = 1;
+- /* FIXME: We could probably remove this line since it's done
+- in etrax_rh_init_int_timer. (Don't remove it from
+- etrax_rh_init_int_timer though.) */
+- hc->rh.interval = urb->interval;
+- etrax_rh_init_int_timer(urb);
+- DBFEXIT;
+-
+- return 0;
+- }
+-
+- bmRType_bReq = cmd->bRequestType | (cmd->bRequest << 8);
+- wValue = le16_to_cpu(cmd->wValue);
+- wIndex = le16_to_cpu(cmd->wIndex);
+- wLength = le16_to_cpu(cmd->wLength);
+-
+- dbg_rh("bmRType_bReq : 0x%04x (%d)", bmRType_bReq, bmRType_bReq);
+- dbg_rh("wValue : 0x%04x (%d)", wValue, wValue);
+- dbg_rh("wIndex : 0x%04x (%d)", wIndex, wIndex);
+- dbg_rh("wLength : 0x%04x (%d)", wLength, wLength);
+-
+- switch (bmRType_bReq) {
+-
+- /* Request Destination:
+- without flags: Device,
+- RH_INTERFACE: interface,
+- RH_ENDPOINT: endpoint,
+- RH_CLASS means HUB here,
+- RH_OTHER | RH_CLASS almost ever means HUB_PORT here
+- */
+-
+- case RH_GET_STATUS:
+- *(__u16 *) data = cpu_to_le16 (1);
+- OK (2);
+-
+- case RH_GET_STATUS | RH_INTERFACE:
+- *(__u16 *) data = cpu_to_le16 (0);
+- OK (2);
+-
+- case RH_GET_STATUS | RH_ENDPOINT:
+- *(__u16 *) data = cpu_to_le16 (0);
+- OK (2);
+-
+- case RH_GET_STATUS | RH_CLASS:
+- *(__u32 *) data = cpu_to_le32 (0);
+- OK (4); /* hub power ** */
+-
+- case RH_GET_STATUS | RH_OTHER | RH_CLASS:
+- if (wIndex == 1) {
+- *((__u16*)data) = cpu_to_le16(hc->rh.prev_wPortStatus_1);
+- *((__u16*)data + 1) = cpu_to_le16(hc->rh.wPortChange_1);
+- } else if (wIndex == 2) {
+- *((__u16*)data) = cpu_to_le16(hc->rh.prev_wPortStatus_2);
+- *((__u16*)data + 1) = cpu_to_le16(hc->rh.wPortChange_2);
+- } else {
+- dbg_rh("RH_GET_STATUS whith invalid wIndex!");
+- OK(0);
+- }
+-
+- OK(4);
+-
+- case RH_CLEAR_FEATURE | RH_ENDPOINT:
+- switch (wValue) {
+- case (RH_ENDPOINT_STALL):
+- OK (0);
+- }
+- break;
+-
+- case RH_CLEAR_FEATURE | RH_CLASS:
+- switch (wValue) {
+- case (RH_C_HUB_OVER_CURRENT):
+- OK (0); /* hub power over current ** */
+- }
+- break;
+-
+- case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS:
+- switch (wValue) {
+- case (RH_PORT_ENABLE):
+- if (wIndex == 1) {
+-
+- dbg_rh("trying to do disable port 1");
+-
+- *R_USB_PORT1_DISABLE = IO_STATE(R_USB_PORT1_DISABLE, disable, yes);
+-
+- while (hc->rh.prev_wPortStatus_1 &
+- IO_STATE(R_USB_RH_PORT_STATUS_1, enabled, yes));
+- *R_USB_PORT1_DISABLE = IO_STATE(R_USB_PORT1_DISABLE, disable, no);
+- dbg_rh("Port 1 is disabled");
+-
+- } else if (wIndex == 2) {
+-
+- dbg_rh("trying to do disable port 2");
+-
+- *R_USB_PORT2_DISABLE = IO_STATE(R_USB_PORT2_DISABLE, disable, yes);
+-
+- while (hc->rh.prev_wPortStatus_2 &
+- IO_STATE(R_USB_RH_PORT_STATUS_2, enabled, yes));
+- *R_USB_PORT2_DISABLE = IO_STATE(R_USB_PORT2_DISABLE, disable, no);
+- dbg_rh("Port 2 is disabled");
+-
+- } else {
+- dbg_rh("RH_CLEAR_FEATURE->RH_PORT_ENABLE "
+- "with invalid wIndex == %d!", wIndex);
+- }
+-
+- OK (0);
+- case (RH_PORT_SUSPEND):
+- /* Opposite to suspend should be resume, so we'll do a resume. */
+- /* FIXME: USB 1.1, 11.16.2.2 says:
+- "Clearing the PORT_SUSPEND feature causes a host-initiated resume
+- on the specified port. If the port is not in the Suspended state,
+- the hub should treat this request as a functional no-operation."
+- Shouldn't we check if the port is in a suspended state before
+- resuming? */
+-
+- /* Make sure the controller isn't busy. */
+- while (*R_USB_COMMAND & IO_MASK(R_USB_COMMAND, busy));
+-
+- if (wIndex == 1) {
+- *R_USB_COMMAND =
+- IO_STATE(R_USB_COMMAND, port_sel, port1) |
+- IO_STATE(R_USB_COMMAND, port_cmd, resume) |
+- IO_STATE(R_USB_COMMAND, ctrl_cmd, nop);
+- } else if (wIndex == 2) {
+- *R_USB_COMMAND =
+- IO_STATE(R_USB_COMMAND, port_sel, port2) |
+- IO_STATE(R_USB_COMMAND, port_cmd, resume) |
+- IO_STATE(R_USB_COMMAND, ctrl_cmd, nop);
+- } else {
+- dbg_rh("RH_CLEAR_FEATURE->RH_PORT_SUSPEND "
+- "with invalid wIndex == %d!", wIndex);
+- }
+-
+- OK (0);
+- case (RH_PORT_POWER):
+- OK (0); /* port power ** */
+- case (RH_C_PORT_CONNECTION):
+- if (wIndex == 1) {
+- hc->rh.wPortChange_1 &= ~(1 << RH_PORT_CONNECTION);
+- } else if (wIndex == 2) {
+- hc->rh.wPortChange_2 &= ~(1 << RH_PORT_CONNECTION);
+- } else {
+- dbg_rh("RH_CLEAR_FEATURE->RH_C_PORT_CONNECTION "
+- "with invalid wIndex == %d!", wIndex);
+- }
+-
+- OK (0);
+- case (RH_C_PORT_ENABLE):
+- if (wIndex == 1) {
+- hc->rh.wPortChange_1 &= ~(1 << RH_PORT_ENABLE);
+- } else if (wIndex == 2) {
+- hc->rh.wPortChange_2 &= ~(1 << RH_PORT_ENABLE);
+- } else {
+- dbg_rh("RH_CLEAR_FEATURE->RH_C_PORT_ENABLE "
+- "with invalid wIndex == %d!", wIndex);
+- }
+- OK (0);
+- case (RH_C_PORT_SUSPEND):
+-/*** WR_RH_PORTSTAT(RH_PS_PSSC); */
+- OK (0);
+- case (RH_C_PORT_OVER_CURRENT):
+- OK (0); /* port power over current ** */
+- case (RH_C_PORT_RESET):
+- if (wIndex == 1) {
+- hc->rh.wPortChange_1 &= ~(1 << RH_PORT_RESET);
+- } else if (wIndex == 2) {
+- hc->rh.wPortChange_2 &= ~(1 << RH_PORT_RESET);
+- } else {
+- dbg_rh("RH_CLEAR_FEATURE->RH_C_PORT_RESET "
+- "with invalid index == %d!", wIndex);
+- }
+-
+- OK (0);
+-
+- }
+- break;
+-
+- case RH_SET_FEATURE | RH_OTHER | RH_CLASS:
+- switch (wValue) {
+- case (RH_PORT_SUSPEND):
+-
+- /* Make sure the controller isn't busy. */
+- while (*R_USB_COMMAND & IO_MASK(R_USB_COMMAND, busy));
+-
+- if (wIndex == 1) {
+- *R_USB_COMMAND =
+- IO_STATE(R_USB_COMMAND, port_sel, port1) |
+- IO_STATE(R_USB_COMMAND, port_cmd, suspend) |
+- IO_STATE(R_USB_COMMAND, ctrl_cmd, nop);
+- } else if (wIndex == 2) {
+- *R_USB_COMMAND =
+- IO_STATE(R_USB_COMMAND, port_sel, port2) |
+- IO_STATE(R_USB_COMMAND, port_cmd, suspend) |
+- IO_STATE(R_USB_COMMAND, ctrl_cmd, nop);
+- } else {
+- dbg_rh("RH_SET_FEATURE->RH_PORT_SUSPEND "
+- "with invalid wIndex == %d!", wIndex);
+- }
+-
+- OK (0);
+- case (RH_PORT_RESET):
+- if (wIndex == 1) {
+-
+- port_1_reset:
+- dbg_rh("Doing reset of port 1");
+-
+- /* Make sure the controller isn't busy. */
+- while (*R_USB_COMMAND & IO_MASK(R_USB_COMMAND, busy));
+-
+- *R_USB_COMMAND =
+- IO_STATE(R_USB_COMMAND, port_sel, port1) |
+- IO_STATE(R_USB_COMMAND, port_cmd, reset) |
+- IO_STATE(R_USB_COMMAND, ctrl_cmd, nop);
+-
+- /* We must wait at least 10 ms for the device to recover.
+- 15 ms should be enough. */
+- udelay(15000);
+-
+- /* Wait for reset bit to go low (should be done by now). */
+- while (hc->rh.prev_wPortStatus_1 &
+- IO_STATE(R_USB_RH_PORT_STATUS_1, reset, yes));
+-
+- /* If the port status is
+- 1) connected and enabled then there is a device and everything is fine
+- 2) neither connected nor enabled then there is no device, also fine
+- 3) connected and not enabled then we try again
+- (Yes, there are other port status combinations besides these.) */
+-
+- if ((hc->rh.prev_wPortStatus_1 &
+- IO_STATE(R_USB_RH_PORT_STATUS_1, connected, yes)) &&
+- (hc->rh.prev_wPortStatus_1 &
+- IO_STATE(R_USB_RH_PORT_STATUS_1, enabled, no))) {
+- dbg_rh("Connected device on port 1, but port not enabled?"
+- " Trying reset again.");
+- goto port_2_reset;
+- }
+-
+- /* Diagnostic printouts. */
+- if ((hc->rh.prev_wPortStatus_1 &
+- IO_STATE(R_USB_RH_PORT_STATUS_1, connected, no)) &&
+- (hc->rh.prev_wPortStatus_1 &
+- IO_STATE(R_USB_RH_PORT_STATUS_1, enabled, no))) {
+- dbg_rh("No connected device on port 1");
+- } else if ((hc->rh.prev_wPortStatus_1 &
+- IO_STATE(R_USB_RH_PORT_STATUS_1, connected, yes)) &&
+- (hc->rh.prev_wPortStatus_1 &
+- IO_STATE(R_USB_RH_PORT_STATUS_1, enabled, yes))) {
+- dbg_rh("Connected device on port 1, port 1 enabled");
+- }
+-
+- } else if (wIndex == 2) {
+-
+- port_2_reset:
+- dbg_rh("Doing reset of port 2");
+-
+- /* Make sure the controller isn't busy. */
+- while (*R_USB_COMMAND & IO_MASK(R_USB_COMMAND, busy));
+-
+- /* Issue the reset command. */
+- *R_USB_COMMAND =
+- IO_STATE(R_USB_COMMAND, port_sel, port2) |
+- IO_STATE(R_USB_COMMAND, port_cmd, reset) |
+- IO_STATE(R_USB_COMMAND, ctrl_cmd, nop);
+-
+- /* We must wait at least 10 ms for the device to recover.
+- 15 ms should be enough. */
+- udelay(15000);
+-
+- /* Wait for reset bit to go low (should be done by now). */
+- while (hc->rh.prev_wPortStatus_2 &
+- IO_STATE(R_USB_RH_PORT_STATUS_2, reset, yes));
+-
+- /* If the port status is
+- 1) connected and enabled then there is a device and everything is fine
+- 2) neither connected nor enabled then there is no device, also fine
+- 3) connected and not enabled then we try again
+- (Yes, there are other port status combinations besides these.) */
+-
+- if ((hc->rh.prev_wPortStatus_2 &
+- IO_STATE(R_USB_RH_PORT_STATUS_2, connected, yes)) &&
+- (hc->rh.prev_wPortStatus_2 &
+- IO_STATE(R_USB_RH_PORT_STATUS_2, enabled, no))) {
+- dbg_rh("Connected device on port 2, but port not enabled?"
+- " Trying reset again.");
+- goto port_2_reset;
+- }
+-
+- /* Diagnostic printouts. */
+- if ((hc->rh.prev_wPortStatus_2 &
+- IO_STATE(R_USB_RH_PORT_STATUS_2, connected, no)) &&
+- (hc->rh.prev_wPortStatus_2 &
+- IO_STATE(R_USB_RH_PORT_STATUS_2, enabled, no))) {
+- dbg_rh("No connected device on port 2");
+- } else if ((hc->rh.prev_wPortStatus_2 &
+- IO_STATE(R_USB_RH_PORT_STATUS_2, connected, yes)) &&
+- (hc->rh.prev_wPortStatus_2 &
+- IO_STATE(R_USB_RH_PORT_STATUS_2, enabled, yes))) {
+- dbg_rh("Connected device on port 2, port 2 enabled");
+- }
+-
+- } else {
+- dbg_rh("RH_SET_FEATURE->RH_PORT_RESET with invalid wIndex = %d", wIndex);
+- }
+-
+- /* Make sure the controller isn't busy. */
+- while (*R_USB_COMMAND & IO_MASK(R_USB_COMMAND, busy));
+-
+- /* If all enabled ports were disabled the host controller goes down into
+- started mode, so we need to bring it back into the running state.
+- (This is safe even if it's already in the running state.) */
+- *R_USB_COMMAND =
+- IO_STATE(R_USB_COMMAND, port_sel, nop) |
+- IO_STATE(R_USB_COMMAND, port_cmd, reset) |
+- IO_STATE(R_USB_COMMAND, ctrl_cmd, host_run);
+-
+- dbg_rh("...Done");
+- OK(0);
+-
+- case (RH_PORT_POWER):
+- OK (0); /* port power ** */
+- case (RH_PORT_ENABLE):
+- /* There is no port enable command in the host controller, so if the
+- port is already enabled, we do nothing. If not, we reset the port
+- (with an ugly goto). */
+-
+- if (wIndex == 1) {
+- if (hc->rh.prev_wPortStatus_1 &
+- IO_STATE(R_USB_RH_PORT_STATUS_1, enabled, no)) {
+- goto port_1_reset;
+- }
+- } else if (wIndex == 2) {
+- if (hc->rh.prev_wPortStatus_2 &
+- IO_STATE(R_USB_RH_PORT_STATUS_2, enabled, no)) {
+- goto port_2_reset;
+- }
+- } else {
+- dbg_rh("RH_SET_FEATURE->RH_GET_STATUS with invalid wIndex = %d", wIndex);
+- }
+- OK (0);
+- }
+- break;
+-
+- case RH_SET_ADDRESS:
+- hc->rh.devnum = wValue;
+- dbg_rh("RH address set to: %d", hc->rh.devnum);
+- OK (0);
+-
+- case RH_GET_DESCRIPTOR:
+- switch ((wValue & 0xff00) >> 8) {
+- case (0x01): /* device descriptor */
+- len = min_t(unsigned int, leni, min_t(unsigned int, sizeof (root_hub_dev_des), wLength));
+- memcpy (data, root_hub_dev_des, len);
+- OK (len);
+- case (0x02): /* configuration descriptor */
+- len = min_t(unsigned int, leni, min_t(unsigned int, sizeof (root_hub_config_des), wLength));
+- memcpy (data, root_hub_config_des, len);
+- OK (len);
+- case (0x03): /* string descriptors */
+- len = usb_root_hub_string (wValue & 0xff,
+- 0xff, "ETRAX 100LX",
+- data, wLength);
+- if (len > 0) {
+- OK(min(leni, len));
+- } else {
+- stat = -EPIPE;
+- }
+-
+- }
+- break;
+-
+- case RH_GET_DESCRIPTOR | RH_CLASS:
+- root_hub_hub_des[2] = hc->rh.numports;
+- len = min_t(unsigned int, leni, min_t(unsigned int, sizeof (root_hub_hub_des), wLength));
+- memcpy (data, root_hub_hub_des, len);
+- OK (len);
+-
+- case RH_GET_CONFIGURATION:
+- *(__u8 *) data = 0x01;
+- OK (1);
+-
+- case RH_SET_CONFIGURATION:
+- OK (0);
+-
+- default:
+- stat = -EPIPE;
+- }
+-
+- urb->actual_length = len;
+- urb->status = stat;
+- urb->dev = NULL;
+- if (urb->complete) {
+- urb->complete(urb, NULL);
+- }
+- DBFEXIT;
+-
+- return 0;
+-}
+-
+-static void
+-etrax_usb_bulk_eot_timer_func(unsigned long dummy)
+-{
+- /* Because of a race condition in the top half, we might miss a bulk eot.
+- This timer "simulates" a bulk eot if we don't get one for a while, hopefully
+- correcting the situation. */
+- dbg_bulk("bulk_eot_timer timed out.");
+- etrax_usb_hc_bulk_eot_interrupt(1);
+-}
+-
+-static void*
+-etrax_usb_buffer_alloc(struct usb_bus* bus, size_t size,
+- unsigned mem_flags, dma_addr_t *dma)
+-{
+- return kmalloc(size, mem_flags);
+-}
+-
+-static void
+-etrax_usb_buffer_free(struct usb_bus *bus, size_t size, void *addr, dma_addr_t dma)
+-{
+- kfree(addr);
+-}
+-
+-
+-static struct device fake_device;
+-
+-static int __init etrax_usb_hc_init(void)
+-{
+- static etrax_hc_t *hc;
+- struct usb_bus *bus;
+- struct usb_device *usb_rh;
+- int i;
+-
+- DBFENTER;
+-
+- info("ETRAX 100LX USB-HCD %s (c) 2001-2003 Axis Communications AB\n", usb_hcd_version);
+-
+- hc = kmalloc(sizeof(etrax_hc_t), GFP_KERNEL);
+- assert(hc != NULL);
+-
+- /* We use kmem_cache_* to make sure that all DMA desc. are dword aligned */
+- /* Note that we specify sizeof(USB_EP_Desc_t) as the size, but also allocate
+- SB descriptors from this cache. This is ok since sizeof(USB_EP_Desc_t) ==
+- sizeof(USB_SB_Desc_t). */
+-
+- usb_desc_cache = kmem_cache_create("usb_desc_cache", sizeof(USB_EP_Desc_t), 0,
+- SLAB_HWCACHE_ALIGN, 0, 0);
+- assert(usb_desc_cache != NULL);
+-
+- top_half_reg_cache = kmem_cache_create("top_half_reg_cache",
+- sizeof(usb_interrupt_registers_t),
+- 0, SLAB_HWCACHE_ALIGN, 0, 0);
+- assert(top_half_reg_cache != NULL);
+-
+- isoc_compl_cache = kmem_cache_create("isoc_compl_cache",
+- sizeof(usb_isoc_complete_data_t),
+- 0, SLAB_HWCACHE_ALIGN, 0, 0);
+- assert(isoc_compl_cache != NULL);
+-
+- etrax_usb_bus = bus = usb_alloc_bus(&etrax_usb_device_operations);
+- hc->bus = bus;
+- bus->bus_name="ETRAX 100LX";
+- bus->hcpriv = hc;
+-
+- /* Initialize RH to the default address.
+- And make sure that we have no status change indication */
+- hc->rh.numports = 2; /* The RH has two ports */
+- hc->rh.devnum = 1;
+- hc->rh.wPortChange_1 = 0;
+- hc->rh.wPortChange_2 = 0;
+-
+- /* Also initate the previous values to zero */
+- hc->rh.prev_wPortStatus_1 = 0;
+- hc->rh.prev_wPortStatus_2 = 0;
+-
+- /* Initialize the intr-traffic flags */
+- /* FIXME: This isn't used. (Besides, the error field isn't initialized.) */
+- hc->intr.sleeping = 0;
+- hc->intr.wq = NULL;
+-
+- epid_usage_bitmask = 0;
+- epid_out_traffic = 0;
+-
+- /* Mark the invalid epid as being used. */
+- set_bit(INVALID_EPID, (void *)&epid_usage_bitmask);
+- *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, INVALID_EPID);
+- nop();
+- /* The valid bit should still be set ('invalid' is in our world; not the hardware's). */
+- *R_USB_EPT_DATA = (IO_STATE(R_USB_EPT_DATA, valid, yes) |
+- IO_FIELD(R_USB_EPT_DATA, max_len, 1));
+-
+- /* Mark the dummy epid as being used. */
+- set_bit(DUMMY_EPID, (void *)&epid_usage_bitmask);
+- *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, DUMMY_EPID);
+- nop();
+- *R_USB_EPT_DATA = (IO_STATE(R_USB_EPT_DATA, valid, no) |
+- IO_FIELD(R_USB_EPT_DATA, max_len, 1));
+-
+- /* Initialize the urb list by initiating a head for each list. */
+- for (i = 0; i < NBR_OF_EPIDS; i++) {
+- INIT_LIST_HEAD(&urb_list[i]);
+- }
+- spin_lock_init(&urb_list_lock);
+-
+- INIT_LIST_HEAD(&urb_unlink_list);
+-
+-
+- /* Initiate the bulk start timer. */
+- init_timer(&bulk_start_timer);
+- bulk_start_timer.expires = jiffies + BULK_START_TIMER_INTERVAL;
+- bulk_start_timer.function = etrax_usb_bulk_start_timer_func;
+- add_timer(&bulk_start_timer);
+-
+-
+- /* Initiate the bulk eot timer. */
+- init_timer(&bulk_eot_timer);
+- bulk_eot_timer.expires = jiffies + BULK_EOT_TIMER_INTERVAL;
+- bulk_eot_timer.function = etrax_usb_bulk_eot_timer_func;
+- add_timer(&bulk_eot_timer);
+-
+- /* Set up the data structures for USB traffic. Note that this must be done before
+- any interrupt that relies on sane DMA list occurrs. */
+- init_rx_buffers();
+- init_tx_bulk_ep();
+- init_tx_ctrl_ep();
+- init_tx_intr_ep();
+- init_tx_isoc_ep();
+-
+- device_initialize(&fake_device);
+- kobject_set_name(&fake_device.kobj, "etrax_usb");
+- kobject_add(&fake_device.kobj);
+- kobject_uevent(&fake_device.kobj, KOBJ_ADD);
+- hc->bus->controller = &fake_device;
+- usb_register_bus(hc->bus);
+-
+- *R_IRQ_MASK2_SET =
+- /* Note that these interrupts are not used. */
+- IO_STATE(R_IRQ_MASK2_SET, dma8_sub0_descr, set) |
+- /* Sub channel 1 (ctrl) descr. interrupts are used. */
+- IO_STATE(R_IRQ_MASK2_SET, dma8_sub1_descr, set) |
+- IO_STATE(R_IRQ_MASK2_SET, dma8_sub2_descr, set) |
+- /* Sub channel 3 (isoc) descr. interrupts are used. */
+- IO_STATE(R_IRQ_MASK2_SET, dma8_sub3_descr, set);
+-
+- /* Note that the dma9_descr interrupt is not used. */
+- *R_IRQ_MASK2_SET =
+- IO_STATE(R_IRQ_MASK2_SET, dma9_eop, set) |
+- IO_STATE(R_IRQ_MASK2_SET, dma9_descr, set);
+-
+- /* FIXME: Enable iso_eof only when isoc traffic is running. */
+- *R_USB_IRQ_MASK_SET =
+- IO_STATE(R_USB_IRQ_MASK_SET, iso_eof, set) |
+- IO_STATE(R_USB_IRQ_MASK_SET, bulk_eot, set) |
+- IO_STATE(R_USB_IRQ_MASK_SET, epid_attn, set) |
+- IO_STATE(R_USB_IRQ_MASK_SET, port_status, set) |
+- IO_STATE(R_USB_IRQ_MASK_SET, ctl_status, set);
+-
+-
+- if (request_irq(ETRAX_USB_HC_IRQ, etrax_usb_hc_interrupt_top_half, 0,
+- "ETRAX 100LX built-in USB (HC)", hc)) {
+- err("Could not allocate IRQ %d for USB", ETRAX_USB_HC_IRQ);
+- etrax_usb_hc_cleanup();
+- DBFEXIT;
+- return -1;
+- }
+-
+- if (request_irq(ETRAX_USB_RX_IRQ, etrax_usb_rx_interrupt, 0,
+- "ETRAX 100LX built-in USB (Rx)", hc)) {
+- err("Could not allocate IRQ %d for USB", ETRAX_USB_RX_IRQ);
+- etrax_usb_hc_cleanup();
+- DBFEXIT;
+- return -1;
+- }
+-
+- if (request_irq(ETRAX_USB_TX_IRQ, etrax_usb_tx_interrupt, 0,
+- "ETRAX 100LX built-in USB (Tx)", hc)) {
+- err("Could not allocate IRQ %d for USB", ETRAX_USB_TX_IRQ);
+- etrax_usb_hc_cleanup();
+- DBFEXIT;
+- return -1;
+- }
+-
+- /* R_USB_COMMAND:
+- USB commands in host mode. The fields in this register should all be
+- written to in one write. Do not read-modify-write one field at a time. A
+- write to this register will trigger events in the USB controller and an
+- incomplete command may lead to unpredictable results, and in worst case
+- even to a deadlock in the controller.
+- (Note however that the busy field is read-only, so no need to write to it.) */
+-
+- /* Check the busy bit before writing to R_USB_COMMAND. */
+-
+- while (*R_USB_COMMAND & IO_MASK(R_USB_COMMAND, busy));
+-
+- /* Reset the USB interface. */
+- *R_USB_COMMAND =
+- IO_STATE(R_USB_COMMAND, port_sel, nop) |
+- IO_STATE(R_USB_COMMAND, port_cmd, reset) |
+- IO_STATE(R_USB_COMMAND, ctrl_cmd, reset);
+-
+- /* Designer's Reference, p. 8 - 10 says we should Initate R_USB_FM_PSTART to 0x2A30 (10800),
+- to guarantee that control traffic gets 10% of the bandwidth, and periodic transfer may
+- allocate the rest (90%). This doesn't work though. Read on for a lenghty explanation.
+-
+- While there is a difference between rev. 2 and rev. 3 of the ETRAX 100LX regarding the NAK
+- behaviour, it doesn't solve this problem. What happens is that a control transfer will not
+- be interrupted in its data stage when PSTART happens (the point at which periodic traffic
+- is started). Thus, if PSTART is set to 10800 and its IN or OUT token is NAKed until just before
+- PSTART happens, it will continue the IN/OUT transfer as long as it's ACKed. After it's done,
+- there may be too little time left for an isochronous transfer, causing an epid attention
+- interrupt due to perror. The work-around for this is to let the control transfers run at the
+- end of the frame instead of at the beginning, and will be interrupted just fine if it doesn't
+- fit into the frame. However, since there will *always* be a control transfer at the beginning
+- of the frame, regardless of what we set PSTART to, that transfer might be a 64-byte transfer
+- which consumes up to 15% of the frame, leaving only 85% for periodic traffic. The solution to
+- this would be to 'dummy allocate' 5% of the frame with the usb_claim_bandwidth function to make
+- sure that the periodic transfers that are inserted will always fit in the frame.
+-
+- The idea was suggested that a control transfer could be split up into several 8 byte transfers,
+- so that it would be interrupted by PSTART, but since this can't be done for an IN transfer this
+- hasn't been implemented.
+-
+- The value 11960 is chosen to be just after the SOF token, with a couple of bit times extra
+- for possible bit stuffing. */
+-
+- *R_USB_FM_PSTART = IO_FIELD(R_USB_FM_PSTART, value, 11960);
+-
+-#ifdef CONFIG_ETRAX_USB_HOST_PORT1
+- *R_USB_PORT1_DISABLE = IO_STATE(R_USB_PORT1_DISABLE, disable, no);
+-#endif
+-
+-#ifdef CONFIG_ETRAX_USB_HOST_PORT2
+- *R_USB_PORT2_DISABLE = IO_STATE(R_USB_PORT2_DISABLE, disable, no);
+-#endif
+-
+- while (*R_USB_COMMAND & IO_MASK(R_USB_COMMAND, busy));
+-
+- /* Configure the USB interface as a host controller. */
+- *R_USB_COMMAND =
+- IO_STATE(R_USB_COMMAND, port_sel, nop) |
+- IO_STATE(R_USB_COMMAND, port_cmd, reset) |
+- IO_STATE(R_USB_COMMAND, ctrl_cmd, host_config);
+-
+- /* Note: Do not reset any ports here. Await the port status interrupts, to have a controlled
+- sequence of resetting the ports. If we reset both ports now, and there are devices
+- on both ports, we will get a bus error because both devices will answer the set address
+- request. */
+-
+- while (*R_USB_COMMAND & IO_MASK(R_USB_COMMAND, busy));
+-
+- /* Start processing of USB traffic. */
+- *R_USB_COMMAND =
+- IO_STATE(R_USB_COMMAND, port_sel, nop) |
+- IO_STATE(R_USB_COMMAND, port_cmd, reset) |
+- IO_STATE(R_USB_COMMAND, ctrl_cmd, host_run);
+-
+- while (*R_USB_COMMAND & IO_MASK(R_USB_COMMAND, busy));
+-
+- usb_rh = usb_alloc_dev(NULL, hc->bus, 0);
+- hc->bus->root_hub = usb_rh;
+- usb_rh->state = USB_STATE_ADDRESS;
+- usb_rh->speed = USB_SPEED_FULL;
+- usb_rh->devnum = 1;
+- hc->bus->devnum_next = 2;
+- usb_rh->ep0.desc.wMaxPacketSize = __const_cpu_to_le16(64);
+- usb_get_device_descriptor(usb_rh, USB_DT_DEVICE_SIZE);
+- usb_new_device(usb_rh);
+-
+- DBFEXIT;
+-
+- return 0;
+-}
+-
+-static void etrax_usb_hc_cleanup(void)
+-{
+- DBFENTER;
+-
+- free_irq(ETRAX_USB_HC_IRQ, NULL);
+- free_irq(ETRAX_USB_RX_IRQ, NULL);
+- free_irq(ETRAX_USB_TX_IRQ, NULL);
+-
+- usb_deregister_bus(etrax_usb_bus);
+-
+- /* FIXME: call kmem_cache_destroy here? */
+-
+- DBFEXIT;
+-}
+
+-module_init(etrax_usb_hc_init);
+-module_exit(etrax_usb_hc_cleanup);
++/* Module hooks */
++module_init(module_hcd_init);
++module_exit(module_hcd_exit);
+--- linux-2.6.19.2.orig/drivers/usb/host/hc-crisv10.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/drivers/usb/host/hc-crisv10.c 2007-02-26 20:58:29.000000000 +0100
+@@ -0,0 +1,4684 @@
++/*
++ *
++ * ETRAX 100LX USB Host Controller Driver
++ *
++ * Copyright (C) 2005, 2006 Axis Communications AB
++ *
++ * Author: Konrad Eriksson <konrad.eriksson@axis.se>
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/moduleparam.h>
++#include <linux/spinlock.h>
++#include <linux/usb.h>
++#include <linux/platform_device.h>
++
++#include <asm/io.h>
++#include <asm/irq.h>
++#include <asm/arch/dma.h>
++#include <asm/arch/io_interface_mux.h>
++
++#include "../core/hcd.h"
++#include "../core/hub.h"
++#include "hc-crisv10.h"
++#include "hc-cris-dbg.h"
++
++
++/***************************************************************************/
++/***************************************************************************/
++/* Host Controller settings */
++/***************************************************************************/
++/***************************************************************************/
++
++#define VERSION "1.00"
++#define COPYRIGHT "(c) 2005, 2006 Axis Communications AB"
++#define DESCRIPTION "ETRAX 100LX USB Host Controller"
++
++#define ETRAX_USB_HC_IRQ USB_HC_IRQ_NBR
++#define ETRAX_USB_RX_IRQ USB_DMA_RX_IRQ_NBR
++#define ETRAX_USB_TX_IRQ USB_DMA_TX_IRQ_NBR
++
++/* Number of physical ports in Etrax 100LX */
++#define USB_ROOT_HUB_PORTS 2
++
++const char hc_name[] = "hc-crisv10";
++const char product_desc[] = DESCRIPTION;
++
++/* The number of epids is, among other things, used for pre-allocating
++ ctrl, bulk and isoc EP descriptors (one for each epid).
++ Assumed to be > 1 when initiating the DMA lists. */
++#define NBR_OF_EPIDS 32
++
++/* Support interrupt traffic intervals up to 128 ms. */
++#define MAX_INTR_INTERVAL 128
++
++/* If periodic traffic (intr or isoc) is to be used, then one entry in the EP
++ table must be "invalid". By this we mean that we shouldn't care about epid
++ attentions for this epid, or at least handle them differently from epid
++ attentions for "valid" epids. This define determines which one to use
++ (don't change it). */
++#define INVALID_EPID 31
++/* A special epid for the bulk dummys. */
++#define DUMMY_EPID 30
++
++/* Module settings */
++
++MODULE_DESCRIPTION(DESCRIPTION);
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Konrad Eriksson <konrad.eriksson@axis.se>");
++
++
++/* Module parameters */
++
++/* 0 = No ports enabled
++ 1 = Only port 1 enabled (on board ethernet on devboard)
++ 2 = Only port 2 enabled (external connector on devboard)
++ 3 = Both ports enabled
++*/
++static unsigned int ports = 3;
++module_param(ports, uint, S_IRUGO);
++MODULE_PARM_DESC(ports, "Bitmask indicating USB ports to use");
++
++
++/***************************************************************************/
++/***************************************************************************/
++/* Shared global variables for this module */
++/***************************************************************************/
++/***************************************************************************/
++
++/* EP descriptor lists for non period transfers. Must be 32-bit aligned. */
++static volatile struct USB_EP_Desc TxBulkEPList[NBR_OF_EPIDS] __attribute__ ((aligned (4)));
++
++static volatile struct USB_EP_Desc TxCtrlEPList[NBR_OF_EPIDS] __attribute__ ((aligned (4)));
++
++/* EP descriptor lists for period transfers. Must be 32-bit aligned. */
++static volatile struct USB_EP_Desc TxIntrEPList[MAX_INTR_INTERVAL] __attribute__ ((aligned (4)));
++static volatile struct USB_SB_Desc TxIntrSB_zout __attribute__ ((aligned (4)));
++
++static volatile struct USB_EP_Desc TxIsocEPList[NBR_OF_EPIDS] __attribute__ ((aligned (4)));
++static volatile struct USB_SB_Desc TxIsocSB_zout __attribute__ ((aligned (4)));
++
++static volatile struct USB_SB_Desc TxIsocSBList[NBR_OF_EPIDS] __attribute__ ((aligned (4)));
++
++/* After each enabled bulk EP IN we put two disabled EP descriptors with the eol flag set,
++ causing the DMA to stop the DMA channel. The first of these two has the intr flag set, which
++ gives us a dma8_sub0_descr interrupt. When we receive this, we advance the DMA one step in the
++ EP list and then restart the bulk channel, thus forcing a switch between bulk EP descriptors
++ in each frame. */
++static volatile struct USB_EP_Desc TxBulkDummyEPList[NBR_OF_EPIDS][2] __attribute__ ((aligned (4)));
++
++/* List of URB pointers, where each points to the active URB for a epid.
++ For Bulk, Ctrl and Intr this means which URB that currently is added to
++ DMA lists (Isoc URBs are all directly added to DMA lists). As soon as
++ URB has completed is the queue examined and the first URB in queue is
++ removed and moved to the activeUrbList while its state change to STARTED and
++ its transfer(s) gets added to DMA list (exception Isoc where URBs enter
++ state STARTED directly and added transfers added to DMA lists). */
++static struct urb *activeUrbList[NBR_OF_EPIDS];
++
++/* Additional software state info for each epid */
++static struct etrax_epid epid_state[NBR_OF_EPIDS];
++
++/* Timer handles for bulk traffic timer used to avoid DMA bug where DMA stops
++ even if there is new data waiting to be processed */
++static struct timer_list bulk_start_timer = TIMER_INITIALIZER(NULL, 0, 0);
++static struct timer_list bulk_eot_timer = TIMER_INITIALIZER(NULL, 0, 0);
++
++/* We want the start timer to expire before the eot timer, because the former
++ might start traffic, thus making it unnecessary for the latter to time
++ out. */
++#define BULK_START_TIMER_INTERVAL (HZ/50) /* 20 ms */
++#define BULK_EOT_TIMER_INTERVAL (HZ/16) /* 60 ms */
++
++/* Delay before a URB completion happen when it's scheduled to be delayed */
++#define LATER_TIMER_DELAY (HZ/50) /* 20 ms */
++
++/* Simplifying macros for checking software state info of a epid */
++/* ----------------------------------------------------------------------- */
++#define epid_inuse(epid) epid_state[epid].inuse
++#define epid_out_traffic(epid) epid_state[epid].out_traffic
++#define epid_isoc(epid) (epid_state[epid].type == PIPE_ISOCHRONOUS ? 1 : 0)
++#define epid_intr(epid) (epid_state[epid].type == PIPE_INTERRUPT ? 1 : 0)
++
++
++/***************************************************************************/
++/***************************************************************************/
++/* DEBUG FUNCTIONS */
++/***************************************************************************/
++/***************************************************************************/
++/* Note that these functions are always available in their "__" variants,
++ for use in error situations. The "__" missing variants are controlled by
++ the USB_DEBUG_DESC/USB_DEBUG_URB macros. */
++static void __dump_urb(struct urb* purb)
++{
++ struct crisv10_urb_priv *urb_priv = purb->hcpriv;
++ int urb_num = -1;
++ if(urb_priv) {
++ urb_num = urb_priv->urb_num;
++ }
++ printk("\nURB:0x%x[%d]\n", (unsigned int)purb, urb_num);
++ printk("dev :0x%08lx\n", (unsigned long)purb->dev);
++ printk("pipe :0x%08x\n", purb->pipe);
++ printk("status :%d\n", purb->status);
++ printk("transfer_flags :0x%08x\n", purb->transfer_flags);
++ printk("transfer_buffer :0x%08lx\n", (unsigned long)purb->transfer_buffer);
++ printk("transfer_buffer_length:%d\n", purb->transfer_buffer_length);
++ printk("actual_length :%d\n", purb->actual_length);
++ printk("setup_packet :0x%08lx\n", (unsigned long)purb->setup_packet);
++ printk("start_frame :%d\n", purb->start_frame);
++ printk("number_of_packets :%d\n", purb->number_of_packets);
++ printk("interval :%d\n", purb->interval);
++ printk("error_count :%d\n", purb->error_count);
++ printk("context :0x%08lx\n", (unsigned long)purb->context);
++ printk("complete :0x%08lx\n\n", (unsigned long)purb->complete);
++}
++
++static void __dump_in_desc(volatile struct USB_IN_Desc *in)
++{
++ printk("\nUSB_IN_Desc at 0x%08lx\n", (unsigned long)in);
++ printk(" sw_len : 0x%04x (%d)\n", in->sw_len, in->sw_len);
++ printk(" command : 0x%04x\n", in->command);
++ printk(" next : 0x%08lx\n", in->next);
++ printk(" buf : 0x%08lx\n", in->buf);
++ printk(" hw_len : 0x%04x (%d)\n", in->hw_len, in->hw_len);
++ printk(" status : 0x%04x\n\n", in->status);
++}
++
++static void __dump_sb_desc(volatile struct USB_SB_Desc *sb)
++{
++ char tt = (sb->command & 0x30) >> 4;
++ char *tt_string;
++
++ switch (tt) {
++ case 0:
++ tt_string = "zout";
++ break;
++ case 1:
++ tt_string = "in";
++ break;
++ case 2:
++ tt_string = "out";
++ break;
++ case 3:
++ tt_string = "setup";
++ break;
++ default:
++ tt_string = "unknown (weird)";
++ }
++
++ printk(" USB_SB_Desc at 0x%08lx ", (unsigned long)sb);
++ printk(" command:0x%04x (", sb->command);
++ printk("rem:%d ", (sb->command & 0x3f00) >> 8);
++ printk("full:%d ", (sb->command & 0x40) >> 6);
++ printk("tt:%d(%s) ", tt, tt_string);
++ printk("intr:%d ", (sb->command & 0x8) >> 3);
++ printk("eot:%d ", (sb->command & 0x2) >> 1);
++ printk("eol:%d)", sb->command & 0x1);
++ printk(" sw_len:0x%04x(%d)", sb->sw_len, sb->sw_len);
++ printk(" next:0x%08lx", sb->next);
++ printk(" buf:0x%08lx\n", sb->buf);
++}
++
++
++static void __dump_ep_desc(volatile struct USB_EP_Desc *ep)
++{
++ printk("USB_EP_Desc at 0x%08lx ", (unsigned long)ep);
++ printk(" command:0x%04x (", ep->command);
++ printk("ep_id:%d ", (ep->command & 0x1f00) >> 8);
++ printk("enable:%d ", (ep->command & 0x10) >> 4);
++ printk("intr:%d ", (ep->command & 0x8) >> 3);
++ printk("eof:%d ", (ep->command & 0x2) >> 1);
++ printk("eol:%d)", ep->command & 0x1);
++ printk(" hw_len:0x%04x(%d)", ep->hw_len, ep->hw_len);
++ printk(" next:0x%08lx", ep->next);
++ printk(" sub:0x%08lx\n", ep->sub);
++}
++
++static inline void __dump_ep_list(int pipe_type)
++{
++ volatile struct USB_EP_Desc *ep;
++ volatile struct USB_EP_Desc *first_ep;
++ volatile struct USB_SB_Desc *sb;
++
++ switch (pipe_type)
++ {
++ case PIPE_BULK:
++ first_ep = &TxBulkEPList[0];
++ break;
++ case PIPE_CONTROL:
++ first_ep = &TxCtrlEPList[0];
++ break;
++ case PIPE_INTERRUPT:
++ first_ep = &TxIntrEPList[0];
++ break;
++ case PIPE_ISOCHRONOUS:
++ first_ep = &TxIsocEPList[0];
++ break;
++ default:
++ warn("Cannot dump unknown traffic type");
++ return;
++ }
++ ep = first_ep;
++
++ printk("\n\nDumping EP list...\n\n");
++
++ do {
++ __dump_ep_desc(ep);
++ /* Cannot phys_to_virt on 0 as it turns into 80000000, which is != 0. */
++ sb = ep->sub ? phys_to_virt(ep->sub) : 0;
++ while (sb) {
++ __dump_sb_desc(sb);
++ sb = sb->next ? phys_to_virt(sb->next) : 0;
++ }
++ ep = (volatile struct USB_EP_Desc *)(phys_to_virt(ep->next));
++
++ } while (ep != first_ep);
++}
++
++static inline void __dump_ept_data(int epid)
++{
++ unsigned long flags;
++ __u32 r_usb_ept_data;
++
++ if (epid < 0 || epid > 31) {
++ printk("Cannot dump ept data for invalid epid %d\n", epid);
++ return;
++ }
++
++ local_irq_save(flags);
++ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, epid);
++ nop();
++ r_usb_ept_data = *R_USB_EPT_DATA;
++ local_irq_restore(flags);
++
++ printk(" R_USB_EPT_DATA = 0x%x for epid %d :\n", r_usb_ept_data, epid);
++ if (r_usb_ept_data == 0) {
++ /* No need for more detailed printing. */
++ return;
++ }
++ printk(" valid : %d\n", (r_usb_ept_data & 0x80000000) >> 31);
++ printk(" hold : %d\n", (r_usb_ept_data & 0x40000000) >> 30);
++ printk(" error_count_in : %d\n", (r_usb_ept_data & 0x30000000) >> 28);
++ printk(" t_in : %d\n", (r_usb_ept_data & 0x08000000) >> 27);
++ printk(" low_speed : %d\n", (r_usb_ept_data & 0x04000000) >> 26);
++ printk(" port : %d\n", (r_usb_ept_data & 0x03000000) >> 24);
++ printk(" error_code : %d\n", (r_usb_ept_data & 0x00c00000) >> 22);
++ printk(" t_out : %d\n", (r_usb_ept_data & 0x00200000) >> 21);
++ printk(" error_count_out : %d\n", (r_usb_ept_data & 0x00180000) >> 19);
++ printk(" max_len : %d\n", (r_usb_ept_data & 0x0003f800) >> 11);
++ printk(" ep : %d\n", (r_usb_ept_data & 0x00000780) >> 7);
++ printk(" dev : %d\n", (r_usb_ept_data & 0x0000003f));
++}
++
++static inline void __dump_ept_data_iso(int epid)
++{
++ unsigned long flags;
++ __u32 ept_data;
++
++ if (epid < 0 || epid > 31) {
++ printk("Cannot dump ept data for invalid epid %d\n", epid);
++ return;
++ }
++
++ local_irq_save(flags);
++ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, epid);
++ nop();
++ ept_data = *R_USB_EPT_DATA_ISO;
++ local_irq_restore(flags);
++
++ printk(" R_USB_EPT_DATA = 0x%x for epid %d :\n", ept_data, epid);
++ if (ept_data == 0) {
++ /* No need for more detailed printing. */
++ return;
++ }
++ printk(" valid : %d\n", IO_EXTRACT(R_USB_EPT_DATA_ISO, valid,
++ ept_data));
++ printk(" port : %d\n", IO_EXTRACT(R_USB_EPT_DATA_ISO, port,
++ ept_data));
++ printk(" error_code : %d\n", IO_EXTRACT(R_USB_EPT_DATA_ISO, error_code,
++ ept_data));
++ printk(" max_len : %d\n", IO_EXTRACT(R_USB_EPT_DATA_ISO, max_len,
++ ept_data));
++ printk(" ep : %d\n", IO_EXTRACT(R_USB_EPT_DATA_ISO, ep,
++ ept_data));
++ printk(" dev : %d\n", IO_EXTRACT(R_USB_EPT_DATA_ISO, dev,
++ ept_data));
++}
++
++static inline void __dump_ept_data_list(void)
++{
++ int i;
++
++ printk("Dumping the whole R_USB_EPT_DATA list\n");
++
++ for (i = 0; i < 32; i++) {
++ __dump_ept_data(i);
++ }
++}
++
++static void debug_epid(int epid) {
++ int i;
++
++ if(epid_isoc(epid)) {
++ __dump_ept_data_iso(epid);
++ } else {
++ __dump_ept_data(epid);
++ }
++
++ printk("Bulk:\n");
++ for(i = 0; i < 32; i++) {
++ if(IO_EXTRACT(USB_EP_command, epid, TxBulkEPList[i].command) ==
++ epid) {
++ printk("%d: ", i); __dump_ep_desc(&(TxBulkEPList[i]));
++ }
++ }
++
++ printk("Ctrl:\n");
++ for(i = 0; i < 32; i++) {
++ if(IO_EXTRACT(USB_EP_command, epid, TxCtrlEPList[i].command) ==
++ epid) {
++ printk("%d: ", i); __dump_ep_desc(&(TxCtrlEPList[i]));
++ }
++ }
++
++ printk("Intr:\n");
++ for(i = 0; i < MAX_INTR_INTERVAL; i++) {
++ if(IO_EXTRACT(USB_EP_command, epid, TxIntrEPList[i].command) ==
++ epid) {
++ printk("%d: ", i); __dump_ep_desc(&(TxIntrEPList[i]));
++ }
++ }
++
++ printk("Isoc:\n");
++ for(i = 0; i < 32; i++) {
++ if(IO_EXTRACT(USB_EP_command, epid, TxIsocEPList[i].command) ==
++ epid) {
++ printk("%d: ", i); __dump_ep_desc(&(TxIsocEPList[i]));
++ }
++ }
++
++ __dump_ept_data_list();
++ __dump_ep_list(PIPE_INTERRUPT);
++ printk("\n\n");
++}
++
++
++
++char* hcd_status_to_str(__u8 bUsbStatus) {
++ static char hcd_status_str[128];
++ hcd_status_str[0] = '\0';
++ if(bUsbStatus & IO_STATE(R_USB_STATUS, ourun, yes)) {
++ strcat(hcd_status_str, "ourun ");
++ }
++ if(bUsbStatus & IO_STATE(R_USB_STATUS, perror, yes)) {
++ strcat(hcd_status_str, "perror ");
++ }
++ if(bUsbStatus & IO_STATE(R_USB_STATUS, device_mode, yes)) {
++ strcat(hcd_status_str, "device_mode ");
++ }
++ if(bUsbStatus & IO_STATE(R_USB_STATUS, host_mode, yes)) {
++ strcat(hcd_status_str, "host_mode ");
++ }
++ if(bUsbStatus & IO_STATE(R_USB_STATUS, started, yes)) {
++ strcat(hcd_status_str, "started ");
++ }
++ if(bUsbStatus & IO_STATE(R_USB_STATUS, running, yes)) {
++ strcat(hcd_status_str, "running ");
++ }
++ return hcd_status_str;
++}
++
++
++char* sblist_to_str(struct USB_SB_Desc* sb_desc) {
++ static char sblist_to_str_buff[128];
++ char tmp[32], tmp2[32];
++ sblist_to_str_buff[0] = '\0';
++ while(sb_desc != NULL) {
++ switch(IO_EXTRACT(USB_SB_command, tt, sb_desc->command)) {
++ case 0: sprintf(tmp, "zout"); break;
++ case 1: sprintf(tmp, "in"); break;
++ case 2: sprintf(tmp, "out"); break;
++ case 3: sprintf(tmp, "setup"); break;
++ }
++ sprintf(tmp2, "(%s %d)", tmp, sb_desc->sw_len);
++ strcat(sblist_to_str_buff, tmp2);
++ if(sb_desc->next != 0) {
++ sb_desc = phys_to_virt(sb_desc->next);
++ } else {
++ sb_desc = NULL;
++ }
++ }
++ return sblist_to_str_buff;
++}
++
++char* port_status_to_str(__u16 wPortStatus) {
++ static char port_status_str[128];
++ port_status_str[0] = '\0';
++ if(wPortStatus & IO_STATE(R_USB_RH_PORT_STATUS_1, connected, yes)) {
++ strcat(port_status_str, "connected ");
++ }
++ if(wPortStatus & IO_STATE(R_USB_RH_PORT_STATUS_1, enabled, yes)) {
++ strcat(port_status_str, "enabled ");
++ }
++ if(wPortStatus & IO_STATE(R_USB_RH_PORT_STATUS_1, suspended, yes)) {
++ strcat(port_status_str, "suspended ");
++ }
++ if(wPortStatus & IO_STATE(R_USB_RH_PORT_STATUS_1, reset, yes)) {
++ strcat(port_status_str, "reset ");
++ }
++ if(wPortStatus & IO_STATE(R_USB_RH_PORT_STATUS_1, speed, full)) {
++ strcat(port_status_str, "full-speed ");
++ } else {
++ strcat(port_status_str, "low-speed ");
++ }
++ return port_status_str;
++}
++
++
++char* endpoint_to_str(struct usb_endpoint_descriptor *ed) {
++ static char endpoint_to_str_buff[128];
++ char tmp[32];
++ int epnum = ed->bEndpointAddress & 0x0F;
++ int dir = ed->bEndpointAddress & 0x80;
++ int type = ed->bmAttributes & 0x03;
++ endpoint_to_str_buff[0] = '\0';
++ sprintf(endpoint_to_str_buff, "ep:%d ", epnum);
++ switch(type) {
++ case 0:
++ sprintf(tmp, " ctrl");
++ break;
++ case 1:
++ sprintf(tmp, " isoc");
++ break;
++ case 2:
++ sprintf(tmp, " bulk");
++ break;
++ case 3:
++ sprintf(tmp, " intr");
++ break;
++ }
++ strcat(endpoint_to_str_buff, tmp);
++ if(dir) {
++ sprintf(tmp, " in");
++ } else {
++ sprintf(tmp, " out");
++ }
++ strcat(endpoint_to_str_buff, tmp);
++
++ return endpoint_to_str_buff;
++}
++
++/* Debug helper functions for Transfer Controller */
++char* pipe_to_str(unsigned int pipe) {
++ static char pipe_to_str_buff[128];
++ char tmp[64];
++ sprintf(pipe_to_str_buff, "dir:%s", str_dir(pipe));
++ sprintf(tmp, " type:%s", str_type(pipe));
++ strcat(pipe_to_str_buff, tmp);
++
++ sprintf(tmp, " dev:%d", usb_pipedevice(pipe));
++ strcat(pipe_to_str_buff, tmp);
++ sprintf(tmp, " ep:%d", usb_pipeendpoint(pipe));
++ strcat(pipe_to_str_buff, tmp);
++ return pipe_to_str_buff;
++}
++
++
++#define USB_DEBUG_DESC 1
++
++#ifdef USB_DEBUG_DESC
++#define dump_in_desc(x) __dump_in_desc(x)
++#define dump_sb_desc(...) __dump_sb_desc(...)
++#define dump_ep_desc(x) __dump_ep_desc(x)
++#define dump_ept_data(x) __dump_ept_data(x)
++#else
++#define dump_in_desc(...) do {} while (0)
++#define dump_sb_desc(...) do {} while (0)
++#define dump_ep_desc(...) do {} while (0)
++#endif
++
++
++/* Uncomment this to enable massive function call trace
++ #define USB_DEBUG_TRACE */
++
++#ifdef USB_DEBUG_TRACE
++#define DBFENTER (printk(": Entering: %s\n", __FUNCTION__))
++#define DBFEXIT (printk(": Exiting: %s\n", __FUNCTION__))
++#else
++#define DBFENTER do {} while (0)
++#define DBFEXIT do {} while (0)
++#endif
++
++#define CHECK_ALIGN(x) if (((__u32)(x)) & 0x00000003) \
++{panic("Alignment check (DWORD) failed at %s:%s:%d\n", __FILE__, __FUNCTION__, __LINE__);}
++
++/* Most helpful debugging aid */
++#define ASSERT(expr) ((void) ((expr) ? 0 : (err("assert failed at: %s %d",__FUNCTION__, __LINE__))))
++
++
++/***************************************************************************/
++/***************************************************************************/
++/* Forward declarations */
++/***************************************************************************/
++/***************************************************************************/
++void crisv10_hcd_epid_attn_irq(struct crisv10_irq_reg *reg);
++void crisv10_hcd_port_status_irq(struct crisv10_irq_reg *reg);
++void crisv10_hcd_ctl_status_irq(struct crisv10_irq_reg *reg);
++void crisv10_hcd_isoc_eof_irq(struct crisv10_irq_reg *reg);
++
++void rh_port_status_change(__u16[]);
++int rh_clear_port_feature(__u8, __u16);
++int rh_set_port_feature(__u8, __u16);
++static void rh_disable_port(unsigned int port);
++
++static void check_finished_bulk_tx_epids(struct usb_hcd *hcd,
++ int timer);
++
++static int tc_setup_epid(struct usb_host_endpoint *ep, struct urb *urb,
++ int mem_flags);
++static void tc_free_epid(struct usb_host_endpoint *ep);
++static int tc_allocate_epid(void);
++static void tc_finish_urb(struct usb_hcd *hcd, struct urb *urb, int status);
++static void tc_finish_urb_later(struct usb_hcd *hcd, struct urb *urb,
++ int status);
++
++static int urb_priv_create(struct usb_hcd *hcd, struct urb *urb, int epid,
++ int mem_flags);
++static void urb_priv_free(struct usb_hcd *hcd, struct urb *urb);
++
++static inline struct urb *urb_list_first(int epid);
++static inline void urb_list_add(struct urb *urb, int epid,
++ int mem_flags);
++static inline urb_entry_t *urb_list_entry(struct urb *urb, int epid);
++static inline void urb_list_del(struct urb *urb, int epid);
++static inline void urb_list_move_last(struct urb *urb, int epid);
++static inline struct urb *urb_list_next(struct urb *urb, int epid);
++
++int create_sb_for_urb(struct urb *urb, int mem_flags);
++int init_intr_urb(struct urb *urb, int mem_flags);
++
++static inline void etrax_epid_set(__u8 index, __u32 data);
++static inline void etrax_epid_clear_error(__u8 index);
++static inline void etrax_epid_set_toggle(__u8 index, __u8 dirout,
++ __u8 toggle);
++static inline __u8 etrax_epid_get_toggle(__u8 index, __u8 dirout);
++static inline __u32 etrax_epid_get(__u8 index);
++
++/* We're accessing the same register position in Etrax so
++ when we do full access the internal difference doesn't matter */
++#define etrax_epid_iso_set(index, data) etrax_epid_set(index, data)
++#define etrax_epid_iso_get(index) etrax_epid_get(index)
++
++
++static void tc_dma_process_isoc_urb(struct urb *urb);
++static void tc_dma_process_queue(int epid);
++static void tc_dma_unlink_intr_urb(struct urb *urb);
++static irqreturn_t tc_dma_tx_interrupt(int irq, void *vhc);
++static irqreturn_t tc_dma_rx_interrupt(int irq, void *vhc);
++
++static void tc_bulk_start_timer_func(unsigned long dummy);
++static void tc_bulk_eot_timer_func(unsigned long dummy);
++
++
++/*************************************************************/
++/*************************************************************/
++/* Host Controler Driver block */
++/*************************************************************/
++/*************************************************************/
++
++/* HCD operations */
++static irqreturn_t crisv10_hcd_top_irq(int irq, void*);
++static int crisv10_hcd_reset(struct usb_hcd *);
++static int crisv10_hcd_start(struct usb_hcd *);
++static void crisv10_hcd_stop(struct usb_hcd *);
++#ifdef CONFIG_PM
++static int crisv10_hcd_suspend(struct device *, u32, u32);
++static int crisv10_hcd_resume(struct device *, u32);
++#endif /* CONFIG_PM */
++static int crisv10_hcd_get_frame(struct usb_hcd *);
++
++static int tc_urb_enqueue(struct usb_hcd *, struct usb_host_endpoint *ep, struct urb *, gfp_t mem_flags);
++static int tc_urb_dequeue(struct usb_hcd *, struct urb *);
++static void tc_endpoint_disable(struct usb_hcd *, struct usb_host_endpoint *ep);
++
++static int rh_status_data_request(struct usb_hcd *, char *);
++static int rh_control_request(struct usb_hcd *, u16, u16, u16, char*, u16);
++
++#ifdef CONFIG_PM
++static int crisv10_hcd_hub_suspend(struct usb_hcd *);
++static int crisv10_hcd_hub_resume(struct usb_hcd *);
++#endif /* CONFIG_PM */
++#ifdef CONFIG_USB_OTG
++static int crisv10_hcd_start_port_reset(struct usb_hcd *, unsigned);
++#endif /* CONFIG_USB_OTG */
++
++/* host controller driver interface */
++static const struct hc_driver crisv10_hc_driver =
++ {
++ .description = hc_name,
++ .product_desc = product_desc,
++ .hcd_priv_size = sizeof(struct crisv10_hcd),
++
++ /* Attaching IRQ handler manualy in probe() */
++ /* .irq = crisv10_hcd_irq, */
++
++ .flags = HCD_USB11,
++
++ /* called to init HCD and root hub */
++ .reset = crisv10_hcd_reset,
++ .start = crisv10_hcd_start,
++
++ /* cleanly make HCD stop writing memory and doing I/O */
++ .stop = crisv10_hcd_stop,
++
++ /* return current frame number */
++ .get_frame_number = crisv10_hcd_get_frame,
++
++
++ /* Manage i/o requests via the Transfer Controller */
++ .urb_enqueue = tc_urb_enqueue,
++ .urb_dequeue = tc_urb_dequeue,
++
++ /* hw synch, freeing endpoint resources that urb_dequeue can't */
++ .endpoint_disable = tc_endpoint_disable,
++
++
++ /* Root Hub support */
++ .hub_status_data = rh_status_data_request,
++ .hub_control = rh_control_request,
++#ifdef CONFIG_PM
++ .hub_suspend = rh_suspend_request,
++ .hub_resume = rh_resume_request,
++#endif /* CONFIG_PM */
++#ifdef CONFIG_USB_OTG
++ .start_port_reset = crisv10_hcd_start_port_reset,
++#endif /* CONFIG_USB_OTG */
++ };
++
++
++/*
++ * conversion between pointers to a hcd and the corresponding
++ * crisv10_hcd
++ */
++
++static inline struct crisv10_hcd *hcd_to_crisv10_hcd(struct usb_hcd *hcd)
++{
++ return (struct crisv10_hcd *) hcd->hcd_priv;
++}
++
++static inline struct usb_hcd *crisv10_hcd_to_hcd(struct crisv10_hcd *hcd)
++{
++ return container_of((void *) hcd, struct usb_hcd, hcd_priv);
++}
++
++/* check if specified port is in use */
++static inline int port_in_use(unsigned int port)
++{
++ return ports & (1 << port);
++}
++
++/* number of ports in use */
++static inline unsigned int num_ports(void)
++{
++ unsigned int i, num = 0;
++ for (i = 0; i < USB_ROOT_HUB_PORTS; i++)
++ if (port_in_use(i))
++ num++;
++ return num;
++}
++
++/* map hub port number to the port number used internally by the HC */
++static inline unsigned int map_port(unsigned int port)
++{
++ unsigned int i, num = 0;
++ for (i = 0; i < USB_ROOT_HUB_PORTS; i++)
++ if (port_in_use(i))
++ if (++num == port)
++ return i;
++ return -1;
++}
++
++/* size of descriptors in slab cache */
++#ifndef MAX
++#define MAX(x, y) ((x) > (y) ? (x) : (y))
++#endif
++
++
++/******************************************************************/
++/* Hardware Interrupt functions */
++/******************************************************************/
++
++/* Fast interrupt handler for HC */
++static irqreturn_t crisv10_hcd_top_irq(int irq, void *vcd)
++{
++ struct usb_hcd *hcd = vcd;
++ struct crisv10_irq_reg reg;
++ __u32 irq_mask;
++ unsigned long flags;
++
++ DBFENTER;
++
++ ASSERT(hcd != NULL);
++ reg.hcd = hcd;
++
++ /* Turn of other interrupts while handling these sensitive cases */
++ local_irq_save(flags);
++
++ /* Read out which interrupts that are flaged */
++ irq_mask = *R_USB_IRQ_MASK_READ;
++ reg.r_usb_irq_mask_read = irq_mask;
++
++ /* Reading R_USB_STATUS clears the ctl_status interrupt. Note that
++ R_USB_STATUS must be read before R_USB_EPID_ATTN since reading the latter
++ clears the ourun and perror fields of R_USB_STATUS. */
++ reg.r_usb_status = *R_USB_STATUS;
++
++ /* Reading R_USB_EPID_ATTN clears the iso_eof, bulk_eot and epid_attn
++ interrupts. */
++ reg.r_usb_epid_attn = *R_USB_EPID_ATTN;
++
++ /* Reading R_USB_RH_PORT_STATUS_1 and R_USB_RH_PORT_STATUS_2 clears the
++ port_status interrupt. */
++ reg.r_usb_rh_port_status_1 = *R_USB_RH_PORT_STATUS_1;
++ reg.r_usb_rh_port_status_2 = *R_USB_RH_PORT_STATUS_2;
++
++ /* Reading R_USB_FM_NUMBER clears the sof interrupt. */
++ /* Note: the lower 11 bits contain the actual frame number, sent with each
++ sof. */
++ reg.r_usb_fm_number = *R_USB_FM_NUMBER;
++
++ /* Interrupts are handled in order of priority. */
++ if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, port_status)) {
++ crisv10_hcd_port_status_irq(&reg);
++ }
++ if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, epid_attn)) {
++ crisv10_hcd_epid_attn_irq(&reg);
++ }
++ if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, ctl_status)) {
++ crisv10_hcd_ctl_status_irq(&reg);
++ }
++ if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, iso_eof)) {
++ crisv10_hcd_isoc_eof_irq(&reg);
++ }
++ if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, bulk_eot)) {
++ /* Update/restart the bulk start timer since obviously the channel is
++ running. */
++ mod_timer(&bulk_start_timer, jiffies + BULK_START_TIMER_INTERVAL);
++ /* Update/restart the bulk eot timer since we just received an bulk eot
++ interrupt. */
++ mod_timer(&bulk_eot_timer, jiffies + BULK_EOT_TIMER_INTERVAL);
++
++ /* Check for finished bulk transfers on epids */
++ check_finished_bulk_tx_epids(hcd, 0);
++ }
++ local_irq_restore(flags);
++
++ DBFEXIT;
++ return IRQ_HANDLED;
++}
++
++
++void crisv10_hcd_epid_attn_irq(struct crisv10_irq_reg *reg) {
++ struct usb_hcd *hcd = reg->hcd;
++ struct crisv10_urb_priv *urb_priv;
++ int epid;
++ DBFENTER;
++
++ for (epid = 0; epid < NBR_OF_EPIDS; epid++) {
++ if (test_bit(epid, (void *)&reg->r_usb_epid_attn)) {
++ struct urb *urb;
++ __u32 ept_data;
++ int error_code;
++
++ if (epid == DUMMY_EPID || epid == INVALID_EPID) {
++ /* We definitely don't care about these ones. Besides, they are
++ always disabled, so any possible disabling caused by the
++ epid attention interrupt is irrelevant. */
++ warn("Got epid_attn for INVALID_EPID or DUMMY_EPID (%d).", epid);
++ continue;
++ }
++
++ if(!epid_inuse(epid)) {
++ irq_err("Epid attention on epid:%d that isn't in use\n", epid);
++ printk("R_USB_STATUS: 0x%x\n", reg->r_usb_status);
++ debug_epid(epid);
++ continue;
++ }
++
++ /* Note that although there are separate R_USB_EPT_DATA and
++ R_USB_EPT_DATA_ISO registers, they are located at the same address and
++ are of the same size. In other words, this read should be ok for isoc
++ also. */
++ ept_data = etrax_epid_get(epid);
++ error_code = IO_EXTRACT(R_USB_EPT_DATA, error_code, ept_data);
++
++ /* Get the active URB for this epid. We blatantly assume
++ that only this URB could have caused the epid attention. */
++ urb = activeUrbList[epid];
++ if (urb == NULL) {
++ irq_err("Attention on epid:%d error:%d with no active URB.\n",
++ epid, error_code);
++ printk("R_USB_STATUS: 0x%x\n", reg->r_usb_status);
++ debug_epid(epid);
++ continue;
++ }
++
++ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ ASSERT(urb_priv);
++
++ /* Using IO_STATE_VALUE on R_USB_EPT_DATA should be ok for isoc also. */
++ if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA, error_code, no_error)) {
++
++ /* Isoc traffic doesn't have error_count_in/error_count_out. */
++ if ((usb_pipetype(urb->pipe) != PIPE_ISOCHRONOUS) &&
++ (IO_EXTRACT(R_USB_EPT_DATA, error_count_in, ept_data) == 3 ||
++ IO_EXTRACT(R_USB_EPT_DATA, error_count_out, ept_data) == 3)) {
++ /* Check if URB allready is marked for late-finish, we can get
++ several 3rd error for Intr traffic when a device is unplugged */
++ if(urb_priv->later_data == NULL) {
++ /* 3rd error. */
++ irq_warn("3rd error for epid:%d (%s %s) URB:0x%x[%d]\n", epid,
++ str_dir(urb->pipe), str_type(urb->pipe),
++ (unsigned int)urb, urb_priv->urb_num);
++
++ tc_finish_urb_later(hcd, urb, -EPROTO);
++ }
++
++ } else if (reg->r_usb_status & IO_MASK(R_USB_STATUS, perror)) {
++ irq_warn("Perror for epid:%d\n", epid);
++ printk("FM_NUMBER: %d\n", reg->r_usb_fm_number & 0x7ff);
++ printk("R_USB_STATUS: 0x%x\n", reg->r_usb_status);
++ __dump_urb(urb);
++ debug_epid(epid);
++
++ if (!(ept_data & IO_MASK(R_USB_EPT_DATA, valid))) {
++ /* invalid ep_id */
++ panic("Perror because of invalid epid."
++ " Deconfigured too early?");
++ } else {
++ /* past eof1, near eof, zout transfer, setup transfer */
++ /* Dump the urb and the relevant EP descriptor. */
++ panic("Something wrong with DMA descriptor contents."
++ " Too much traffic inserted?");
++ }
++ } else if (reg->r_usb_status & IO_MASK(R_USB_STATUS, ourun)) {
++ /* buffer ourun */
++ printk("FM_NUMBER: %d\n", reg->r_usb_fm_number & 0x7ff);
++ printk("R_USB_STATUS: 0x%x\n", reg->r_usb_status);
++ __dump_urb(urb);
++ debug_epid(epid);
++
++ panic("Buffer overrun/underrun for epid:%d. DMA too busy?", epid);
++ } else {
++ irq_warn("Attention on epid:%d (%s %s) with no error code\n", epid,
++ str_dir(urb->pipe), str_type(urb->pipe));
++ printk("R_USB_STATUS: 0x%x\n", reg->r_usb_status);
++ __dump_urb(urb);
++ debug_epid(epid);
++ }
++
++ } else if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA, error_code,
++ stall)) {
++ /* Not really a protocol error, just says that the endpoint gave
++ a stall response. Note that error_code cannot be stall for isoc. */
++ if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
++ panic("Isoc traffic cannot stall");
++ }
++
++ tc_dbg("Stall for epid:%d (%s %s) URB:0x%x\n", epid,
++ str_dir(urb->pipe), str_type(urb->pipe), (unsigned int)urb);
++ tc_finish_urb(hcd, urb, -EPIPE);
++
++ } else if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA, error_code,
++ bus_error)) {
++ /* Two devices responded to a transaction request. Must be resolved
++ by software. FIXME: Reset ports? */
++ panic("Bus error for epid %d."
++ " Two devices responded to transaction request\n",
++ epid);
++
++ } else if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA, error_code,
++ buffer_error)) {
++ /* DMA overrun or underrun. */
++ irq_warn("Buffer overrun/underrun for epid:%d (%s %s)\n", epid,
++ str_dir(urb->pipe), str_type(urb->pipe));
++
++ /* It seems that error_code = buffer_error in
++ R_USB_EPT_DATA/R_USB_EPT_DATA_ISO and ourun = yes in R_USB_STATUS
++ are the same error. */
++ tc_finish_urb(hcd, urb, -EPROTO);
++ } else {
++ irq_warn("Unknown attention on epid:%d (%s %s)\n", epid,
++ str_dir(urb->pipe), str_type(urb->pipe));
++ dump_ept_data(epid);
++ }
++ }
++ }
++ DBFEXIT;
++}
++
++void crisv10_hcd_port_status_irq(struct crisv10_irq_reg *reg)
++{
++ __u16 port_reg[USB_ROOT_HUB_PORTS];
++ DBFENTER;
++ port_reg[0] = reg->r_usb_rh_port_status_1;
++ port_reg[1] = reg->r_usb_rh_port_status_2;
++ rh_port_status_change(port_reg);
++ DBFEXIT;
++}
++
++void crisv10_hcd_isoc_eof_irq(struct crisv10_irq_reg *reg)
++{
++ int epid;
++ struct urb *urb;
++ struct crisv10_urb_priv *urb_priv;
++
++ DBFENTER;
++
++ for (epid = 0; epid < NBR_OF_EPIDS - 1; epid++) {
++
++ /* Only check epids that are in use, is valid and has SB list */
++ if (!epid_inuse(epid) || epid == INVALID_EPID ||
++ TxIsocEPList[epid].sub == 0 || epid == DUMMY_EPID) {
++ /* Nothing here to see. */
++ continue;
++ }
++ ASSERT(epid_isoc(epid));
++
++ /* Get the active URB for this epid (if any). */
++ urb = activeUrbList[epid];
++ if (urb == 0) {
++ isoc_warn("Ignoring NULL urb for epid:%d\n", epid);
++ continue;
++ }
++ if(!epid_out_traffic(epid)) {
++ /* Sanity check. */
++ ASSERT(usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS);
++
++ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ ASSERT(urb_priv);
++
++ if (urb_priv->urb_state == NOT_STARTED) {
++ /* If ASAP is not set and urb->start_frame is the current frame,
++ start the transfer. */
++ if (!(urb->transfer_flags & URB_ISO_ASAP) &&
++ (urb->start_frame == (*R_USB_FM_NUMBER & 0x7ff))) {
++ /* EP should not be enabled if we're waiting for start_frame */
++ ASSERT((TxIsocEPList[epid].command &
++ IO_STATE(USB_EP_command, enable, yes)) == 0);
++
++ isoc_warn("Enabling isoc IN EP descr for epid %d\n", epid);
++ TxIsocEPList[epid].command |= IO_STATE(USB_EP_command, enable, yes);
++
++ /* This urb is now active. */
++ urb_priv->urb_state = STARTED;
++ continue;
++ }
++ }
++ }
++ }
++
++ DBFEXIT;
++}
++
++void crisv10_hcd_ctl_status_irq(struct crisv10_irq_reg *reg)
++{
++ struct crisv10_hcd* crisv10_hcd = hcd_to_crisv10_hcd(reg->hcd);
++
++ DBFENTER;
++ ASSERT(crisv10_hcd);
++
++ irq_dbg("ctr_status_irq, controller status: %s\n",
++ hcd_status_to_str(reg->r_usb_status));
++
++ /* FIXME: What should we do if we get ourun or perror? Dump the EP and SB
++ list for the corresponding epid? */
++ if (reg->r_usb_status & IO_MASK(R_USB_STATUS, ourun)) {
++ panic("USB controller got ourun.");
++ }
++ if (reg->r_usb_status & IO_MASK(R_USB_STATUS, perror)) {
++
++ /* Before, etrax_usb_do_intr_recover was called on this epid if it was
++ an interrupt pipe. I don't see how re-enabling all EP descriptors
++ will help if there was a programming error. */
++ panic("USB controller got perror.");
++ }
++
++ /* Keep track of USB Controller, if it's running or not */
++ if(reg->r_usb_status & IO_STATE(R_USB_STATUS, running, yes)) {
++ crisv10_hcd->running = 1;
++ } else {
++ crisv10_hcd->running = 0;
++ }
++
++ if (reg->r_usb_status & IO_MASK(R_USB_STATUS, device_mode)) {
++ /* We should never operate in device mode. */
++ panic("USB controller in device mode.");
++ }
++
++ /* Set the flag to avoid getting "Unlink after no-IRQ? Controller is probably
++ using the wrong IRQ" from hcd_unlink_urb() in drivers/usb/core/hcd.c */
++ set_bit(HCD_FLAG_SAW_IRQ, &reg->hcd->flags);
++
++ DBFEXIT;
++}
++
++
++/******************************************************************/
++/* Host Controller interface functions */
++/******************************************************************/
++
++static inline void crisv10_ready_wait(void) {
++ volatile int timeout = 10000;
++ /* Check the busy bit of USB controller in Etrax */
++ while((*R_USB_COMMAND & IO_MASK(R_USB_COMMAND, busy)) &&
++ (timeout-- > 0));
++ if(timeout == 0) {
++ warn("Timeout while waiting for USB controller to be idle\n");
++ }
++}
++
++/* reset host controller */
++static int crisv10_hcd_reset(struct usb_hcd *hcd)
++{
++ DBFENTER;
++ hcd_dbg(hcd, "reset\n");
++
++
++ /* Reset the USB interface. */
++ /*
++ *R_USB_COMMAND =
++ IO_STATE(R_USB_COMMAND, port_sel, nop) |
++ IO_STATE(R_USB_COMMAND, port_cmd, reset) |
++ IO_STATE(R_USB_COMMAND, ctrl_cmd, reset);
++ nop();
++ */
++ DBFEXIT;
++ return 0;
++}
++
++/* start host controller */
++static int crisv10_hcd_start(struct usb_hcd *hcd)
++{
++ DBFENTER;
++ hcd_dbg(hcd, "start\n");
++
++ crisv10_ready_wait();
++
++ /* Start processing of USB traffic. */
++ *R_USB_COMMAND =
++ IO_STATE(R_USB_COMMAND, port_sel, nop) |
++ IO_STATE(R_USB_COMMAND, port_cmd, reset) |
++ IO_STATE(R_USB_COMMAND, ctrl_cmd, host_run);
++
++ nop();
++
++ hcd->state = HC_STATE_RUNNING;
++
++ DBFEXIT;
++ return 0;
++}
++
++/* stop host controller */
++static void crisv10_hcd_stop(struct usb_hcd *hcd)
++{
++ DBFENTER;
++ hcd_dbg(hcd, "stop\n");
++ crisv10_hcd_reset(hcd);
++ DBFEXIT;
++}
++
++/* return the current frame number */
++static int crisv10_hcd_get_frame(struct usb_hcd *hcd)
++{
++ DBFENTER;
++ DBFEXIT;
++ return (*R_USB_FM_NUMBER & 0x7ff);
++}
++
++#ifdef CONFIG_USB_OTG
++
++static int crisv10_hcd_start_port_reset(struct usb_hcd *hcd, unsigned port)
++{
++ return 0; /* no-op for now */
++}
++
++#endif /* CONFIG_USB_OTG */
++
++
++/******************************************************************/
++/* Root Hub functions */
++/******************************************************************/
++
++/* root hub status */
++static const struct usb_hub_status rh_hub_status =
++ {
++ .wHubStatus = 0,
++ .wHubChange = 0,
++ };
++
++/* root hub descriptor */
++static const u8 rh_hub_descr[] =
++ {
++ 0x09, /* bDescLength */
++ 0x29, /* bDescriptorType */
++ USB_ROOT_HUB_PORTS, /* bNbrPorts */
++ 0x00, /* wHubCharacteristics */
++ 0x00,
++ 0x01, /* bPwrOn2pwrGood */
++ 0x00, /* bHubContrCurrent */
++ 0x00, /* DeviceRemovable */
++ 0xff /* PortPwrCtrlMask */
++ };
++
++/* Actual holder of root hub status*/
++struct crisv10_rh rh;
++
++/* Initialize root hub data structures (called from dvdrv_hcd_probe()) */
++int rh_init(void) {
++ int i;
++ /* Reset port status flags */
++ for (i = 0; i < USB_ROOT_HUB_PORTS; i++) {
++ rh.wPortChange[i] = 0;
++ rh.wPortStatusPrev[i] = 0;
++ }
++ return 0;
++}
++
++#define RH_FEAT_MASK ((1<<USB_PORT_FEAT_CONNECTION)|\
++ (1<<USB_PORT_FEAT_ENABLE)|\
++ (1<<USB_PORT_FEAT_SUSPEND)|\
++ (1<<USB_PORT_FEAT_RESET))
++
++/* Handle port status change interrupt (called from bottom part interrupt) */
++void rh_port_status_change(__u16 port_reg[]) {
++ int i;
++ __u16 wChange;
++
++ for(i = 0; i < USB_ROOT_HUB_PORTS; i++) {
++ /* Xor out changes since last read, masked for important flags */
++ wChange = (port_reg[i] & RH_FEAT_MASK) ^ rh.wPortStatusPrev[i];
++ /* Or changes together with (if any) saved changes */
++ rh.wPortChange[i] |= wChange;
++ /* Save new status */
++ rh.wPortStatusPrev[i] = port_reg[i];
++
++ if(wChange) {
++ rh_dbg("Interrupt port_status change port%d: %s Current-status:%s\n", i+1,
++ port_status_to_str(wChange),
++ port_status_to_str(port_reg[i]));
++ }
++ }
++}
++
++/* Construct port status change bitmap for the root hub */
++static int rh_status_data_request(struct usb_hcd *hcd, char *buf)
++{
++ struct crisv10_hcd* crisv10_hcd = hcd_to_crisv10_hcd(hcd);
++ unsigned int i;
++
++ DBFENTER;
++ /*
++ * corresponds to hub status change EP (USB 2.0 spec section 11.13.4)
++ * return bitmap indicating ports with status change
++ */
++ *buf = 0;
++ spin_lock(&crisv10_hcd->lock);
++ for (i = 1; i <= crisv10_hcd->num_ports; i++) {
++ if (rh.wPortChange[map_port(i)]) {
++ *buf |= (1 << i);
++ rh_dbg("rh_status_data_request, change on port %d: %s Current Status: %s\n", i,
++ port_status_to_str(rh.wPortChange[map_port(i)]),
++ port_status_to_str(rh.wPortStatusPrev[map_port(i)]));
++ }
++ }
++ spin_unlock(&crisv10_hcd->lock);
++ DBFEXIT;
++ return *buf == 0 ? 0 : 1;
++}
++
++/* Handle a control request for the root hub (called from hcd_driver) */
++static int rh_control_request(struct usb_hcd *hcd,
++ u16 typeReq,
++ u16 wValue,
++ u16 wIndex,
++ char *buf,
++ u16 wLength) {
++
++ struct crisv10_hcd *crisv10_hcd = hcd_to_crisv10_hcd(hcd);
++ int retval = 0;
++ int len;
++ DBFENTER;
++
++ switch (typeReq) {
++ case GetHubDescriptor:
++ rh_dbg("GetHubDescriptor\n");
++ len = min_t(unsigned int, sizeof rh_hub_descr, wLength);
++ memcpy(buf, rh_hub_descr, len);
++ buf[2] = crisv10_hcd->num_ports;
++ break;
++ case GetHubStatus:
++ rh_dbg("GetHubStatus\n");
++ len = min_t(unsigned int, sizeof rh_hub_status, wLength);
++ memcpy(buf, &rh_hub_status, len);
++ break;
++ case GetPortStatus:
++ if (!wIndex || wIndex > crisv10_hcd->num_ports)
++ goto error;
++ rh_dbg("GetportStatus, port:%d change:%s status:%s\n", wIndex,
++ port_status_to_str(rh.wPortChange[map_port(wIndex)]),
++ port_status_to_str(rh.wPortStatusPrev[map_port(wIndex)]));
++ *(u16 *) buf = cpu_to_le16(rh.wPortStatusPrev[map_port(wIndex)]);
++ *(u16 *) (buf + 2) = cpu_to_le16(rh.wPortChange[map_port(wIndex)]);
++ break;
++ case SetHubFeature:
++ rh_dbg("SetHubFeature\n");
++ case ClearHubFeature:
++ rh_dbg("ClearHubFeature\n");
++ switch (wValue) {
++ case C_HUB_OVER_CURRENT:
++ case C_HUB_LOCAL_POWER:
++ rh_warn("Not implemented hub request:%d \n", typeReq);
++ /* not implemented */
++ break;
++ default:
++ goto error;
++ }
++ break;
++ case SetPortFeature:
++ if (!wIndex || wIndex > crisv10_hcd->num_ports)
++ goto error;
++ if(rh_set_port_feature(map_port(wIndex), wValue))
++ goto error;
++ break;
++ case ClearPortFeature:
++ if (!wIndex || wIndex > crisv10_hcd->num_ports)
++ goto error;
++ if(rh_clear_port_feature(map_port(wIndex), wValue))
++ goto error;
++ break;
++ default:
++ rh_warn("Unknown hub request: %d\n", typeReq);
++ error:
++ retval = -EPIPE;
++ }
++ DBFEXIT;
++ return retval;
++}
++
++int rh_set_port_feature(__u8 bPort, __u16 wFeature) {
++ __u8 bUsbCommand = 0;
++ switch(wFeature) {
++ case USB_PORT_FEAT_RESET:
++ rh_dbg("SetPortFeature: reset\n");
++ bUsbCommand |= IO_STATE(R_USB_COMMAND, port_cmd, reset);
++ goto set;
++ break;
++ case USB_PORT_FEAT_SUSPEND:
++ rh_dbg("SetPortFeature: suspend\n");
++ bUsbCommand |= IO_STATE(R_USB_COMMAND, port_cmd, suspend);
++ goto set;
++ break;
++ case USB_PORT_FEAT_POWER:
++ rh_dbg("SetPortFeature: power\n");
++ break;
++ case USB_PORT_FEAT_C_CONNECTION:
++ rh_dbg("SetPortFeature: c_connection\n");
++ break;
++ case USB_PORT_FEAT_C_RESET:
++ rh_dbg("SetPortFeature: c_reset\n");
++ break;
++ case USB_PORT_FEAT_C_OVER_CURRENT:
++ rh_dbg("SetPortFeature: c_over_current\n");
++ break;
++
++ set:
++ /* Select which port via the port_sel field */
++ bUsbCommand |= IO_FIELD(R_USB_COMMAND, port_sel, bPort+1);
++
++ /* Make sure the controller isn't busy. */
++ crisv10_ready_wait();
++ /* Send out the actual command to the USB controller */
++ *R_USB_COMMAND = bUsbCommand;
++
++ /* If port reset then also bring USB controller into running state */
++ if(wFeature == USB_PORT_FEAT_RESET) {
++ /* Wait a while for controller to first become started after port reset */
++ udelay(12000); /* 12ms blocking wait */
++
++ /* Make sure the controller isn't busy. */
++ crisv10_ready_wait();
++
++ /* If all enabled ports were disabled the host controller goes down into
++ started mode, so we need to bring it back into the running state.
++ (This is safe even if it's already in the running state.) */
++ *R_USB_COMMAND =
++ IO_STATE(R_USB_COMMAND, port_sel, nop) |
++ IO_STATE(R_USB_COMMAND, port_cmd, reset) |
++ IO_STATE(R_USB_COMMAND, ctrl_cmd, host_run);
++ }
++
++ break;
++ default:
++ rh_dbg("SetPortFeature: unknown feature\n");
++ return -1;
++ }
++ return 0;
++}
++
++int rh_clear_port_feature(__u8 bPort, __u16 wFeature) {
++ switch(wFeature) {
++ case USB_PORT_FEAT_ENABLE:
++ rh_dbg("ClearPortFeature: enable\n");
++ rh_disable_port(bPort);
++ break;
++ case USB_PORT_FEAT_SUSPEND:
++ rh_dbg("ClearPortFeature: suspend\n");
++ break;
++ case USB_PORT_FEAT_POWER:
++ rh_dbg("ClearPortFeature: power\n");
++ break;
++
++ case USB_PORT_FEAT_C_ENABLE:
++ rh_dbg("ClearPortFeature: c_enable\n");
++ goto clear;
++ case USB_PORT_FEAT_C_SUSPEND:
++ rh_dbg("ClearPortFeature: c_suspend\n");
++ goto clear;
++ case USB_PORT_FEAT_C_CONNECTION:
++ rh_dbg("ClearPortFeature: c_connection\n");
++ goto clear;
++ case USB_PORT_FEAT_C_OVER_CURRENT:
++ rh_dbg("ClearPortFeature: c_over_current\n");
++ goto clear;
++ case USB_PORT_FEAT_C_RESET:
++ rh_dbg("ClearPortFeature: c_reset\n");
++ goto clear;
++ clear:
++ rh.wPortChange[bPort] &= ~(1 << (wFeature - 16));
++ break;
++ default:
++ rh_dbg("ClearPortFeature: unknown feature\n");
++ return -1;
++ }
++ return 0;
++}
++
++
++#ifdef CONFIG_PM
++/* Handle a suspend request for the root hub (called from hcd_driver) */
++static int rh_suspend_request(struct usb_hcd *hcd)
++{
++ return 0; /* no-op for now */
++}
++
++/* Handle a resume request for the root hub (called from hcd_driver) */
++static int rh_resume_request(struct usb_hcd *hcd)
++{
++ return 0; /* no-op for now */
++}
++#endif /* CONFIG_PM */
++
++
++
++/* Wrapper function for workaround port disable registers in USB controller */
++static void rh_disable_port(unsigned int port) {
++ volatile int timeout = 10000;
++ volatile char* usb_portx_disable;
++ switch(port) {
++ case 0:
++ usb_portx_disable = R_USB_PORT1_DISABLE;
++ break;
++ case 1:
++ usb_portx_disable = R_USB_PORT2_DISABLE;
++ break;
++ default:
++ /* Invalid port index */
++ return;
++ }
++ /* Set disable flag in special register */
++ *usb_portx_disable = IO_STATE(R_USB_PORT1_DISABLE, disable, yes);
++ /* Wait until not enabled anymore */
++ while((rh.wPortStatusPrev[port] &
++ IO_STATE(R_USB_RH_PORT_STATUS_1, enabled, yes)) &&
++ (timeout-- > 0));
++ if(timeout == 0) {
++ warn("Timeout while waiting for port %d to become disabled\n", port);
++ }
++ /* clear disable flag in special register */
++ *usb_portx_disable = IO_STATE(R_USB_PORT1_DISABLE, disable, no);
++ rh_info("Physical port %d disabled\n", port+1);
++}
++
++
++/******************************************************************/
++/* Transfer Controller (TC) functions */
++/******************************************************************/
++
++/* FIXME: Should RX_BUF_SIZE be a config option, or maybe we should adjust it
++ dynamically?
++ To adjust it dynamically we would have to get an interrupt when we reach
++ the end of the rx descriptor list, or when we get close to the end, and
++ then allocate more descriptors. */
++#define NBR_OF_RX_DESC 512
++#define RX_DESC_BUF_SIZE 1024
++#define RX_BUF_SIZE (NBR_OF_RX_DESC * RX_DESC_BUF_SIZE)
++
++
++/* Local variables for Transfer Controller */
++/* --------------------------------------- */
++
++/* This is a circular (double-linked) list of the active urbs for each epid.
++ The head is never removed, and new urbs are linked onto the list as
++ urb_entry_t elements. Don't reference urb_list directly; use the wrapper
++ functions instead (which includes spin_locks) */
++static struct list_head urb_list[NBR_OF_EPIDS];
++
++/* Read about the need and usage of this lock in submit_ctrl_urb. */
++/* Lock for URB lists for each EPID */
++static spinlock_t urb_list_lock;
++
++/* Lock for EPID array register (R_USB_EPT_x) in Etrax */
++static spinlock_t etrax_epid_lock;
++
++/* Lock for dma8 sub0 handling */
++static spinlock_t etrax_dma8_sub0_lock;
++
++/* DMA IN cache bug. Align the DMA IN buffers to 32 bytes, i.e. a cache line.
++ Since RX_DESC_BUF_SIZE is 1024 is a multiple of 32, all rx buffers will be
++ cache aligned. */
++static volatile unsigned char RxBuf[RX_BUF_SIZE] __attribute__ ((aligned (32)));
++static volatile struct USB_IN_Desc RxDescList[NBR_OF_RX_DESC] __attribute__ ((aligned (4)));
++
++/* Pointers into RxDescList. */
++static volatile struct USB_IN_Desc *myNextRxDesc;
++static volatile struct USB_IN_Desc *myLastRxDesc;
++
++/* A zout transfer makes a memory access at the address of its buf pointer,
++ which means that setting this buf pointer to 0 will cause an access to the
++ flash. In addition to this, setting sw_len to 0 results in a 16/32 bytes
++ (depending on DMA burst size) transfer.
++ Instead, we set it to 1, and point it to this buffer. */
++static int zout_buffer[4] __attribute__ ((aligned (4)));
++
++/* Cache for allocating new EP and SB descriptors. */
++static kmem_cache_t *usb_desc_cache;
++
++/* Cache for the data allocated in the isoc descr top half. */
++static kmem_cache_t *isoc_compl_cache;
++
++/* Cache for the data allocated when delayed finishing of URBs */
++static kmem_cache_t *later_data_cache;
++
++
++/* Counter to keep track of how many Isoc EP we have sat up. Used to enable
++ and disable iso_eof interrupt. We only need these interrupts when we have
++ Isoc data endpoints (consumes CPU cycles).
++ FIXME: This could be more fine granular, so this interrupt is only enabled
++ when we have a In Isoc URB not URB_ISO_ASAP flaged queued. */
++static int isoc_epid_counter;
++
++/* Protecting wrapper functions for R_USB_EPT_x */
++/* -------------------------------------------- */
++static inline void etrax_epid_set(__u8 index, __u32 data) {
++ unsigned long flags;
++ spin_lock_irqsave(&etrax_epid_lock, flags);
++ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, index);
++ nop();
++ *R_USB_EPT_DATA = data;
++ spin_unlock_irqrestore(&etrax_epid_lock, flags);
++}
++
++static inline void etrax_epid_clear_error(__u8 index) {
++ unsigned long flags;
++ spin_lock_irqsave(&etrax_epid_lock, flags);
++ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, index);
++ nop();
++ *R_USB_EPT_DATA &=
++ ~(IO_MASK(R_USB_EPT_DATA, error_count_in) |
++ IO_MASK(R_USB_EPT_DATA, error_count_out) |
++ IO_MASK(R_USB_EPT_DATA, error_code));
++ spin_unlock_irqrestore(&etrax_epid_lock, flags);
++}
++
++static inline void etrax_epid_set_toggle(__u8 index, __u8 dirout,
++ __u8 toggle) {
++ unsigned long flags;
++ spin_lock_irqsave(&etrax_epid_lock, flags);
++ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, index);
++ nop();
++ if(dirout) {
++ *R_USB_EPT_DATA &= ~IO_MASK(R_USB_EPT_DATA, t_out);
++ *R_USB_EPT_DATA |= IO_FIELD(R_USB_EPT_DATA, t_out, toggle);
++ } else {
++ *R_USB_EPT_DATA &= ~IO_MASK(R_USB_EPT_DATA, t_in);
++ *R_USB_EPT_DATA |= IO_FIELD(R_USB_EPT_DATA, t_in, toggle);
++ }
++ spin_unlock_irqrestore(&etrax_epid_lock, flags);
++}
++
++static inline __u8 etrax_epid_get_toggle(__u8 index, __u8 dirout) {
++ unsigned long flags;
++ __u8 toggle;
++ spin_lock_irqsave(&etrax_epid_lock, flags);
++ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, index);
++ nop();
++ if (dirout) {
++ toggle = IO_EXTRACT(R_USB_EPT_DATA, t_out, *R_USB_EPT_DATA);
++ } else {
++ toggle = IO_EXTRACT(R_USB_EPT_DATA, t_in, *R_USB_EPT_DATA);
++ }
++ spin_unlock_irqrestore(&etrax_epid_lock, flags);
++ return toggle;
++}
++
++
++static inline __u32 etrax_epid_get(__u8 index) {
++ unsigned long flags;
++ __u32 data;
++ spin_lock_irqsave(&etrax_epid_lock, flags);
++ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, index);
++ nop();
++ data = *R_USB_EPT_DATA;
++ spin_unlock_irqrestore(&etrax_epid_lock, flags);
++ return data;
++}
++
++
++
++
++/* Main functions for Transfer Controller */
++/* -------------------------------------- */
++
++/* Init structs, memories and lists used by Transfer Controller */
++int tc_init(struct usb_hcd *hcd) {
++ int i;
++ /* Clear software state info for all epids */
++ memset(epid_state, 0, sizeof(struct etrax_epid) * NBR_OF_EPIDS);
++
++ /* Set Invalid and Dummy as being in use and disabled */
++ epid_state[INVALID_EPID].inuse = 1;
++ epid_state[DUMMY_EPID].inuse = 1;
++ epid_state[INVALID_EPID].disabled = 1;
++ epid_state[DUMMY_EPID].disabled = 1;
++
++ /* Clear counter for how many Isoc epids we have sat up */
++ isoc_epid_counter = 0;
++
++ /* Initialize the urb list by initiating a head for each list.
++ Also reset list hodling active URB for each epid */
++ for (i = 0; i < NBR_OF_EPIDS; i++) {
++ INIT_LIST_HEAD(&urb_list[i]);
++ activeUrbList[i] = NULL;
++ }
++
++ /* Init lock for URB lists */
++ spin_lock_init(&urb_list_lock);
++ /* Init lock for Etrax R_USB_EPT register */
++ spin_lock_init(&etrax_epid_lock);
++ /* Init lock for Etrax dma8 sub0 handling */
++ spin_lock_init(&etrax_dma8_sub0_lock);
++
++ /* We use kmem_cache_* to make sure that all DMA desc. are dword aligned */
++
++ /* Note that we specify sizeof(struct USB_EP_Desc) as the size, but also
++ allocate SB descriptors from this cache. This is ok since
++ sizeof(struct USB_EP_Desc) == sizeof(struct USB_SB_Desc). */
++ usb_desc_cache = kmem_cache_create("usb_desc_cache",
++ sizeof(struct USB_EP_Desc), 0,
++ SLAB_HWCACHE_ALIGN, 0, 0);
++ if(usb_desc_cache == NULL) {
++ return -ENOMEM;
++ }
++
++ /* Create slab cache for speedy allocation of memory for isoc bottom-half
++ interrupt handling */
++ isoc_compl_cache =
++ kmem_cache_create("isoc_compl_cache",
++ sizeof(struct crisv10_isoc_complete_data),
++ 0, SLAB_HWCACHE_ALIGN, 0, 0);
++ if(isoc_compl_cache == NULL) {
++ return -ENOMEM;
++ }
++
++ /* Create slab cache for speedy allocation of memory for later URB finish
++ struct */
++ later_data_cache =
++ kmem_cache_create("later_data_cache",
++ sizeof(struct urb_later_data),
++ 0, SLAB_HWCACHE_ALIGN, 0, 0);
++ if(later_data_cache == NULL) {
++ return -ENOMEM;
++ }
++
++
++ /* Initiate the bulk start timer. */
++ init_timer(&bulk_start_timer);
++ bulk_start_timer.expires = jiffies + BULK_START_TIMER_INTERVAL;
++ bulk_start_timer.function = tc_bulk_start_timer_func;
++ add_timer(&bulk_start_timer);
++
++
++ /* Initiate the bulk eot timer. */
++ init_timer(&bulk_eot_timer);
++ bulk_eot_timer.expires = jiffies + BULK_EOT_TIMER_INTERVAL;
++ bulk_eot_timer.function = tc_bulk_eot_timer_func;
++ bulk_eot_timer.data = (unsigned long)hcd;
++ add_timer(&bulk_eot_timer);
++
++ return 0;
++}
++
++/* Uninitialize all resources used by Transfer Controller */
++void tc_destroy(void) {
++
++ /* Destroy all slab cache */
++ kmem_cache_destroy(usb_desc_cache);
++ kmem_cache_destroy(isoc_compl_cache);
++ kmem_cache_destroy(later_data_cache);
++
++ /* Remove timers */
++ del_timer(&bulk_start_timer);
++ del_timer(&bulk_eot_timer);
++}
++
++static void restart_dma8_sub0(void) {
++ unsigned long flags;
++ spin_lock_irqsave(&etrax_dma8_sub0_lock, flags);
++ /* Verify that the dma is not running */
++ if ((*R_DMA_CH8_SUB0_CMD & IO_MASK(R_DMA_CH8_SUB0_CMD, cmd)) == 0) {
++ struct USB_EP_Desc *ep = (struct USB_EP_Desc *)phys_to_virt(*R_DMA_CH8_SUB0_EP);
++ while (DUMMY_EPID == IO_EXTRACT(USB_EP_command, epid, ep->command)) {
++ ep = (struct USB_EP_Desc *)phys_to_virt(ep->next);
++ }
++ /* Advance the DMA to the next EP descriptor that is not a DUMMY_EPID.
++ * ep->next is already a physical address; no need for a virt_to_phys. */
++ *R_DMA_CH8_SUB0_EP = ep->next;
++ /* Restart the DMA */
++ *R_DMA_CH8_SUB0_CMD = IO_STATE(R_DMA_CH8_SUB0_CMD, cmd, start);
++ }
++ spin_unlock_irqrestore(&etrax_dma8_sub0_lock, flags);
++}
++
++/* queue an URB with the transfer controller (called from hcd_driver) */
++static int tc_urb_enqueue(struct usb_hcd *hcd,
++ struct usb_host_endpoint *ep,
++ struct urb *urb,
++ gfp_t mem_flags) {
++ int epid;
++ int retval;
++ int bustime = 0;
++ int maxpacket;
++ unsigned long flags;
++ struct crisv10_urb_priv *urb_priv;
++ struct crisv10_hcd* crisv10_hcd = hcd_to_crisv10_hcd(hcd);
++ DBFENTER;
++
++ if(!(crisv10_hcd->running)) {
++ /* The USB Controller is not running, probably because no device is
++ attached. No idea to enqueue URBs then */
++ tc_warn("Rejected enqueueing of URB:0x%x because no dev attached\n",
++ (unsigned int)urb);
++ return -ENOENT;
++ }
++
++ maxpacket = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe));
++ /* Special case check for In Isoc transfers. Specification states that each
++ In Isoc transfer consists of one packet and therefore it should fit into
++ the transfer-buffer of an URB.
++ We do the check here to be sure (an invalid scenario can be produced with
++ parameters to the usbtest suite) */
++ if(usb_pipeisoc(urb->pipe) && usb_pipein(urb->pipe) &&
++ (urb->transfer_buffer_length < maxpacket)) {
++ tc_err("Submit In Isoc URB with buffer length:%d to pipe with maxpacketlen: %d\n", urb->transfer_buffer_length, maxpacket);
++ return -EMSGSIZE;
++ }
++
++ /* Check if there is enough bandwidth for periodic transfer */
++ if(usb_pipeint(urb->pipe) || usb_pipeisoc(urb->pipe)) {
++ /* only check (and later claim) if not already claimed */
++ if (urb->bandwidth == 0) {
++ bustime = usb_check_bandwidth(urb->dev, urb);
++ if (bustime < 0) {
++ tc_err("Not enough periodic bandwidth\n");
++ return -ENOSPC;
++ }
++ }
++ }
++
++ /* Check if there is a epid for URBs destination, if not this function
++ set up one. */
++ epid = tc_setup_epid(ep, urb, mem_flags);
++ if (epid < 0) {
++ tc_err("Failed setup epid:%d for URB:0x%x\n", epid, (unsigned int)urb);
++ DBFEXIT;
++ return -ENOMEM;
++ }
++
++ if(urb == activeUrbList[epid]) {
++ tc_err("Resubmition of allready active URB:0x%x\n", (unsigned int)urb);
++ return -ENXIO;
++ }
++
++ if(urb_list_entry(urb, epid)) {
++ tc_err("Resubmition of allready queued URB:0x%x\n", (unsigned int)urb);
++ return -ENXIO;
++ }
++
++ /* If we actively have flaged endpoint as disabled then refuse submition */
++ if(epid_state[epid].disabled) {
++ return -ENOENT;
++ }
++
++ /* Allocate and init HC-private data for URB */
++ if(urb_priv_create(hcd, urb, epid, mem_flags) != 0) {
++ DBFEXIT;
++ return -ENOMEM;
++ }
++ urb_priv = urb->hcpriv;
++
++ tc_dbg("Enqueue URB:0x%x[%d] epid:%d (%s) bufflen:%d\n",
++ (unsigned int)urb, urb_priv->urb_num, epid,
++ pipe_to_str(urb->pipe), urb->transfer_buffer_length);
++
++ /* Create and link SBs required for this URB */
++ retval = create_sb_for_urb(urb, mem_flags);
++ if(retval != 0) {
++ tc_err("Failed to create SBs for URB:0x%x[%d]\n", (unsigned int)urb,
++ urb_priv->urb_num);
++ urb_priv_free(hcd, urb);
++ DBFEXIT;
++ return retval;
++ }
++
++ /* Init intr EP pool if this URB is a INTR transfer. This pool is later
++ used when inserting EPs in the TxIntrEPList. We do the alloc here
++ so we can't run out of memory later */
++ if(usb_pipeint(urb->pipe)) {
++ retval = init_intr_urb(urb, mem_flags);
++ if(retval != 0) {
++ tc_warn("Failed to init Intr URB\n");
++ urb_priv_free(hcd, urb);
++ DBFEXIT;
++ return retval;
++ }
++ }
++
++ /* Disable other access when inserting USB */
++ local_irq_save(flags);
++
++ /* Claim bandwidth, if needed */
++ if(bustime) {
++ usb_claim_bandwidth(urb->dev, urb, bustime, 0);
++ }
++
++ /* Add URB to EP queue */
++ urb_list_add(urb, epid, mem_flags);
++
++ if(usb_pipeisoc(urb->pipe)) {
++ /* Special processing of Isoc URBs. */
++ tc_dma_process_isoc_urb(urb);
++ } else {
++ /* Process EP queue for rest of the URB types (Bulk, Ctrl, Intr) */
++ tc_dma_process_queue(epid);
++ }
++
++ local_irq_restore(flags);
++
++ DBFEXIT;
++ return 0;
++}
++
++/* remove an URB from the transfer controller queues (called from hcd_driver)*/
++static int tc_urb_dequeue(struct usb_hcd *hcd, struct urb *urb) {
++ struct crisv10_urb_priv *urb_priv;
++ unsigned long flags;
++ int epid;
++
++ DBFENTER;
++ /* Disable interrupts here since a descriptor interrupt for the isoc epid
++ will modify the sb list. This could possibly be done more granular, but
++ urb_dequeue should not be used frequently anyway.
++ */
++ local_irq_save(flags);
++
++ urb_priv = urb->hcpriv;
++
++ if (!urb_priv) {
++ /* This happens if a device driver calls unlink on an urb that
++ was never submitted (lazy driver) or if the urb was completed
++ while dequeue was being called. */
++ tc_warn("Dequeing of not enqueued URB:0x%x\n", (unsigned int)urb);
++ local_irq_restore(flags);
++ return 0;
++ }
++ epid = urb_priv->epid;
++
++ tc_warn("Dequeing %s URB:0x%x[%d] (%s %s epid:%d) status:%d %s\n",
++ (urb == activeUrbList[epid]) ? "active" : "queued",
++ (unsigned int)urb, urb_priv->urb_num, str_dir(urb->pipe),
++ str_type(urb->pipe), epid, urb->status,
++ (urb_priv->later_data) ? "later-sched" : "");
++
++ /* For Bulk, Ctrl and Intr are only one URB active at a time. So any URB
++ that isn't active can be dequeued by just removing it from the queue */
++ if(usb_pipebulk(urb->pipe) || usb_pipecontrol(urb->pipe) ||
++ usb_pipeint(urb->pipe)) {
++
++ /* Check if URB haven't gone further than the queue */
++ if(urb != activeUrbList[epid]) {
++ ASSERT(urb_priv->later_data == NULL);
++ tc_warn("Dequeing URB:0x%x[%d] (%s %s epid:%d) from queue"
++ " (not active)\n", (unsigned int)urb, urb_priv->urb_num,
++ str_dir(urb->pipe), str_type(urb->pipe), epid);
++
++ /* Finish the URB with error status from USB core */
++ tc_finish_urb(hcd, urb, urb->status);
++ local_irq_restore(flags);
++ return 0;
++ }
++ }
++
++ /* Set URB status to Unlink for handling when interrupt comes. */
++ urb_priv->urb_state = UNLINK;
++
++ /* Differentiate dequeing of Bulk and Ctrl from Isoc and Intr */
++ switch(usb_pipetype(urb->pipe)) {
++ case PIPE_BULK:
++ /* Check if EP still is enabled */
++ if (TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
++ /* The EP was enabled, disable it. */
++ TxBulkEPList[epid].command &= ~IO_MASK(USB_EP_command, enable);
++ }
++ /* Kicking dummy list out of the party. */
++ TxBulkEPList[epid].next = virt_to_phys(&TxBulkEPList[(epid + 1) % NBR_OF_EPIDS]);
++ break;
++ case PIPE_CONTROL:
++ /* Check if EP still is enabled */
++ if (TxCtrlEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
++ /* The EP was enabled, disable it. */
++ TxCtrlEPList[epid].command &= ~IO_MASK(USB_EP_command, enable);
++ }
++ break;
++ case PIPE_ISOCHRONOUS:
++ /* Disabling, busy-wait and unlinking of Isoc SBs will be done in
++ finish_isoc_urb(). Because there might the case when URB is dequeued
++ but there are other valid URBs waiting */
++
++ /* Check if In Isoc EP still is enabled */
++ if (TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
++ /* The EP was enabled, disable it. */
++ TxIsocEPList[epid].command &= ~IO_MASK(USB_EP_command, enable);
++ }
++ break;
++ case PIPE_INTERRUPT:
++ /* Special care is taken for interrupt URBs. EPs are unlinked in
++ tc_finish_urb */
++ break;
++ default:
++ break;
++ }
++
++ /* Asynchronous unlink, finish the URB later from scheduled or other
++ event (data finished, error) */
++ tc_finish_urb_later(hcd, urb, urb->status);
++
++ local_irq_restore(flags);
++ DBFEXIT;
++ return 0;
++}
++
++
++static void tc_sync_finish_epid(struct usb_hcd *hcd, int epid) {
++ volatile int timeout = 10000;
++ struct urb* urb;
++ struct crisv10_urb_priv* urb_priv;
++ unsigned long flags;
++
++ volatile struct USB_EP_Desc *first_ep; /* First EP in the list. */
++ volatile struct USB_EP_Desc *curr_ep; /* Current EP, the iterator. */
++ volatile struct USB_EP_Desc *next_ep; /* The EP after current. */
++
++ int type = epid_state[epid].type;
++
++ /* Setting this flag will cause enqueue() to return -ENOENT for new
++ submitions on this endpoint and finish_urb() wont process queue further */
++ epid_state[epid].disabled = 1;
++
++ switch(type) {
++ case PIPE_BULK:
++ /* Check if EP still is enabled */
++ if (TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
++ /* The EP was enabled, disable it. */
++ TxBulkEPList[epid].command &= ~IO_MASK(USB_EP_command, enable);
++ tc_warn("sync_finish: Disabling EP for epid:%d\n", epid);
++
++ /* Do busy-wait until DMA not using this EP descriptor anymore */
++ while((*R_DMA_CH8_SUB0_EP ==
++ virt_to_phys(&TxBulkEPList[epid])) &&
++ (timeout-- > 0));
++ if(timeout == 0) {
++ warn("Timeout while waiting for DMA-TX-Bulk to leave EP for"
++ " epid:%d\n", epid);
++ }
++ }
++ break;
++
++ case PIPE_CONTROL:
++ /* Check if EP still is enabled */
++ if (TxCtrlEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
++ /* The EP was enabled, disable it. */
++ TxCtrlEPList[epid].command &= ~IO_MASK(USB_EP_command, enable);
++ tc_warn("sync_finish: Disabling EP for epid:%d\n", epid);
++
++ /* Do busy-wait until DMA not using this EP descriptor anymore */
++ while((*R_DMA_CH8_SUB1_EP ==
++ virt_to_phys(&TxCtrlEPList[epid])) &&
++ (timeout-- > 0));
++ if(timeout == 0) {
++ warn("Timeout while waiting for DMA-TX-Ctrl to leave EP for"
++ " epid:%d\n", epid);
++ }
++ }
++ break;
++
++ case PIPE_INTERRUPT:
++ local_irq_save(flags);
++ /* Disable all Intr EPs belonging to epid */
++ first_ep = &TxIntrEPList[0];
++ curr_ep = first_ep;
++ do {
++ next_ep = (struct USB_EP_Desc *)phys_to_virt(curr_ep->next);
++ if (IO_EXTRACT(USB_EP_command, epid, next_ep->command) == epid) {
++ /* Disable EP */
++ next_ep->command &= ~IO_MASK(USB_EP_command, enable);
++ }
++ curr_ep = phys_to_virt(curr_ep->next);
++ } while (curr_ep != first_ep);
++
++ local_irq_restore(flags);
++ break;
++
++ case PIPE_ISOCHRONOUS:
++ /* Check if EP still is enabled */
++ if (TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
++ tc_warn("sync_finish: Disabling Isoc EP for epid:%d\n", epid);
++ /* The EP was enabled, disable it. */
++ TxIsocEPList[epid].command &= ~IO_MASK(USB_EP_command, enable);
++
++ while((*R_DMA_CH8_SUB3_EP == virt_to_phys(&TxIsocEPList[epid])) &&
++ (timeout-- > 0));
++ if(timeout == 0) {
++ warn("Timeout while waiting for DMA-TX-Isoc to leave EP for"
++ " epid:%d\n", epid);
++ }
++ }
++ break;
++ }
++
++ local_irq_save(flags);
++
++ /* Finish if there is active URB for this endpoint */
++ if(activeUrbList[epid] != NULL) {
++ urb = activeUrbList[epid];
++ urb_priv = urb->hcpriv;
++ ASSERT(urb_priv);
++ tc_warn("Sync finish %s URB:0x%x[%d] (%s %s epid:%d) status:%d %s\n",
++ (urb == activeUrbList[epid]) ? "active" : "queued",
++ (unsigned int)urb, urb_priv->urb_num, str_dir(urb->pipe),
++ str_type(urb->pipe), epid, urb->status,
++ (urb_priv->later_data) ? "later-sched" : "");
++
++ tc_finish_urb(hcd, activeUrbList[epid], -ENOENT);
++ ASSERT(activeUrbList[epid] == NULL);
++ }
++
++ /* Finish any queued URBs for this endpoint. There won't be any resubmitions
++ because epid_disabled causes enqueue() to fail for this endpoint */
++ while((urb = urb_list_first(epid)) != NULL) {
++ urb_priv = urb->hcpriv;
++ ASSERT(urb_priv);
++
++ tc_warn("Sync finish %s URB:0x%x[%d] (%s %s epid:%d) status:%d %s\n",
++ (urb == activeUrbList[epid]) ? "active" : "queued",
++ (unsigned int)urb, urb_priv->urb_num, str_dir(urb->pipe),
++ str_type(urb->pipe), epid, urb->status,
++ (urb_priv->later_data) ? "later-sched" : "");
++
++ tc_finish_urb(hcd, urb, -ENOENT);
++ }
++ epid_state[epid].disabled = 0;
++ local_irq_restore(flags);
++}
++
++/* free resources associated with an endpoint (called from hcd_driver) */
++static void tc_endpoint_disable(struct usb_hcd *hcd,
++ struct usb_host_endpoint *ep) {
++ DBFENTER;
++ /* Only free epid if it has been allocated. We get two endpoint_disable
++ requests for ctrl endpoints so ignore the second one */
++ if(ep->hcpriv != NULL) {
++ struct crisv10_ep_priv *ep_priv = ep->hcpriv;
++ int epid = ep_priv->epid;
++ tc_warn("endpoint_disable ep:0x%x ep-priv:0x%x (%s) (epid:%d freed)\n",
++ (unsigned int)ep, (unsigned int)ep->hcpriv,
++ endpoint_to_str(&(ep->desc)), epid);
++
++ tc_sync_finish_epid(hcd, epid);
++
++ ASSERT(activeUrbList[epid] == NULL);
++ ASSERT(list_empty(&urb_list[epid]));
++
++ tc_free_epid(ep);
++ } else {
++ tc_dbg("endpoint_disable ep:0x%x ep-priv:0x%x (%s)\n", (unsigned int)ep,
++ (unsigned int)ep->hcpriv, endpoint_to_str(&(ep->desc)));
++ }
++ DBFEXIT;
++}
++
++static void tc_finish_urb_later_proc(void *data) {
++ unsigned long flags;
++ struct urb_later_data* uld = (struct urb_later_data*)data;
++ local_irq_save(flags);
++ if(uld->urb == NULL) {
++ late_dbg("Later finish of URB = NULL (allready finished)\n");
++ } else {
++ struct crisv10_urb_priv* urb_priv = uld->urb->hcpriv;
++ ASSERT(urb_priv);
++ if(urb_priv->urb_num == uld->urb_num) {
++ late_dbg("Later finish of URB:0x%x[%d]\n", (unsigned int)(uld->urb),
++ urb_priv->urb_num);
++ if(uld->status != uld->urb->status) {
++ errno_dbg("Later-finish URB with status:%d, later-status:%d\n",
++ uld->urb->status, uld->status);
++ }
++ if(uld != urb_priv->later_data) {
++ panic("Scheduled uld not same as URBs uld\n");
++ }
++ tc_finish_urb(uld->hcd, uld->urb, uld->status);
++ } else {
++ late_warn("Ignoring later finish of URB:0x%x[%d]"
++ ", urb_num doesn't match current URB:0x%x[%d]",
++ (unsigned int)(uld->urb), uld->urb_num,
++ (unsigned int)(uld->urb), urb_priv->urb_num);
++ }
++ }
++ local_irq_restore(flags);
++ kmem_cache_free(later_data_cache, uld);
++}
++
++static void tc_finish_urb_later(struct usb_hcd *hcd, struct urb *urb,
++ int status) {
++ struct crisv10_urb_priv *urb_priv = urb->hcpriv;
++ struct urb_later_data* uld;
++
++ ASSERT(urb_priv);
++
++ if(urb_priv->later_data != NULL) {
++ /* Later-finish allready scheduled for this URB, just update status to
++ return when finishing later */
++ errno_dbg("Later-finish schedule change URB status:%d with new"
++ " status:%d\n", urb_priv->later_data->status, status);
++
++ urb_priv->later_data->status = status;
++ return;
++ }
++
++ uld = kmem_cache_alloc(later_data_cache, SLAB_ATOMIC);
++ ASSERT(uld);
++
++ uld->hcd = hcd;
++ uld->urb = urb;
++ uld->urb_num = urb_priv->urb_num;
++ uld->status = status;
++
++ INIT_WORK(&uld->ws, tc_finish_urb_later_proc, uld);
++ urb_priv->later_data = uld;
++
++ /* Schedule the finishing of the URB to happen later */
++ schedule_delayed_work(&uld->ws, LATER_TIMER_DELAY);
++}
++
++static void tc_finish_isoc_urb(struct usb_hcd *hcd, struct urb *urb,
++ int status);
++
++static void tc_finish_urb(struct usb_hcd *hcd, struct urb *urb, int status) {
++ struct crisv10_hcd* crisv10_hcd = hcd_to_crisv10_hcd(hcd);
++ struct crisv10_urb_priv *urb_priv = urb->hcpriv;
++ int epid;
++ char toggle;
++ int urb_num;
++
++ DBFENTER;
++ ASSERT(urb_priv != NULL);
++ epid = urb_priv->epid;
++ urb_num = urb_priv->urb_num;
++
++ if(urb != activeUrbList[epid]) {
++ if(urb_list_entry(urb, epid)) {
++ /* Remove this URB from the list. Only happens when URB are finished
++ before having been processed (dequeing) */
++ urb_list_del(urb, epid);
++ } else {
++ tc_warn("Finishing of URB:0x%x[%d] neither active or in queue for"
++ " epid:%d\n", (unsigned int)urb, urb_num, epid);
++ }
++ }
++
++ /* Cancel any pending later-finish of this URB */
++ if(urb_priv->later_data) {
++ urb_priv->later_data->urb = NULL;
++ }
++
++ /* For an IN pipe, we always set the actual length, regardless of whether
++ there was an error or not (which means the device driver can use the data
++ if it wants to). */
++ if(usb_pipein(urb->pipe)) {
++ urb->actual_length = urb_priv->rx_offset;
++ } else {
++ /* Set actual_length for OUT urbs also; the USB mass storage driver seems
++ to want that. */
++ if (status == 0 && urb->status == -EINPROGRESS) {
++ urb->actual_length = urb->transfer_buffer_length;
++ } else {
++ /* We wouldn't know of any partial writes if there was an error. */
++ urb->actual_length = 0;
++ }
++ }
++
++
++ /* URB status mangling */
++ if(urb->status == -EINPROGRESS) {
++ /* The USB core hasn't changed the status, let's set our finish status */
++ urb->status = status;
++
++ if ((status == 0) && (urb->transfer_flags & URB_SHORT_NOT_OK) &&
++ usb_pipein(urb->pipe) &&
++ (urb->actual_length != urb->transfer_buffer_length)) {
++ /* URB_SHORT_NOT_OK means that short reads (shorter than the endpoint's
++ max length) is to be treated as an error. */
++ errno_dbg("Finishing URB:0x%x[%d] with SHORT_NOT_OK flag and short"
++ " data:%d\n", (unsigned int)urb, urb_num,
++ urb->actual_length);
++ urb->status = -EREMOTEIO;
++ }
++
++ if(urb_priv->urb_state == UNLINK) {
++ /* URB has been requested to be unlinked asynchronously */
++ urb->status = -ECONNRESET;
++ errno_dbg("Fixing unlink status of URB:0x%x[%d] to:%d\n",
++ (unsigned int)urb, urb_num, urb->status);
++ }
++ } else {
++ /* The USB Core wants to signal some error via the URB, pass it through */
++ }
++
++ /* use completely different finish function for Isoc URBs */
++ if(usb_pipeisoc(urb->pipe)) {
++ tc_finish_isoc_urb(hcd, urb, status);
++ return;
++ }
++
++ /* Do special unlinking of EPs for Intr traffic */
++ if(usb_pipeint(urb->pipe)) {
++ tc_dma_unlink_intr_urb(urb);
++ }
++
++ /* Release allocated bandwidth for periodic transfers */
++ if(usb_pipeint(urb->pipe) || usb_pipeisoc(urb->pipe))
++ usb_release_bandwidth(urb->dev, urb, 0);
++
++ /* This URB is active on EP */
++ if(urb == activeUrbList[epid]) {
++ /* We need to fiddle with the toggle bits because the hardware doesn't do
++ it for us. */
++ toggle = etrax_epid_get_toggle(epid, usb_pipeout(urb->pipe));
++ usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
++ usb_pipeout(urb->pipe), toggle);
++
++ /* Checks for Ctrl and Bulk EPs */
++ switch(usb_pipetype(urb->pipe)) {
++ case PIPE_BULK:
++ /* Check so Bulk EP realy is disabled before finishing active URB */
++ ASSERT((TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)) ==
++ IO_STATE(USB_EP_command, enable, no));
++ /* Disable sub-pointer for EP to avoid next tx_interrupt() to
++ process Bulk EP. */
++ TxBulkEPList[epid].sub = 0;
++ /* No need to wait for the DMA before changing the next pointer.
++ The modulo NBR_OF_EPIDS isn't actually necessary, since we will never use
++ the last one (INVALID_EPID) for actual traffic. */
++ TxBulkEPList[epid].next =
++ virt_to_phys(&TxBulkEPList[(epid + 1) % NBR_OF_EPIDS]);
++ break;
++ case PIPE_CONTROL:
++ /* Check so Ctrl EP realy is disabled before finishing active URB */
++ ASSERT((TxCtrlEPList[epid].command & IO_MASK(USB_EP_command, enable)) ==
++ IO_STATE(USB_EP_command, enable, no));
++ /* Disable sub-pointer for EP to avoid next tx_interrupt() to
++ process Ctrl EP. */
++ TxCtrlEPList[epid].sub = 0;
++ break;
++ }
++ }
++
++ /* Free HC-private URB data*/
++ urb_priv_free(hcd, urb);
++
++ if(urb->status) {
++ errno_dbg("finish_urb (URB:0x%x[%d] %s %s) (data:%d) status:%d\n",
++ (unsigned int)urb, urb_num, str_dir(urb->pipe),
++ str_type(urb->pipe), urb->actual_length, urb->status);
++ } else {
++ tc_dbg("finish_urb (URB:0x%x[%d] %s %s) (data:%d) status:%d\n",
++ (unsigned int)urb, urb_num, str_dir(urb->pipe),
++ str_type(urb->pipe), urb->actual_length, urb->status);
++ }
++
++ /* If we just finished an active URB, clear active pointer. */
++ if (urb == activeUrbList[epid]) {
++ /* Make URB not active on EP anymore */
++ activeUrbList[epid] = NULL;
++
++ if(urb->status == 0) {
++ /* URB finished sucessfully, process queue to see if there are any more
++ URBs waiting before we call completion function.*/
++ if(crisv10_hcd->running) {
++ /* Only process queue if USB controller is running */
++ tc_dma_process_queue(epid);
++ } else {
++ tc_warn("No processing of queue for epid:%d, USB Controller not"
++ " running\n", epid);
++ }
++ }
++ }
++
++ /* Hand the URB from HCD to its USB device driver, using its completion
++ functions */
++ usb_hcd_giveback_urb (hcd, urb);
++
++ /* Check the queue once more if the URB returned with error, because we
++ didn't do it before the completion function because the specification
++ states that the queue should not restart until all it's unlinked
++ URBs have been fully retired, with the completion functions run */
++ if(crisv10_hcd->running) {
++ /* Only process queue if USB controller is running */
++ tc_dma_process_queue(epid);
++ } else {
++ tc_warn("No processing of queue for epid:%d, USB Controller not running\n",
++ epid);
++ }
++
++ DBFEXIT;
++}
++
++static void tc_finish_isoc_urb(struct usb_hcd *hcd, struct urb *urb,
++ int status) {
++ struct crisv10_urb_priv *urb_priv = urb->hcpriv;
++ int epid, i;
++ volatile int timeout = 10000;
++
++ ASSERT(urb_priv);
++ epid = urb_priv->epid;
++
++ ASSERT(usb_pipeisoc(urb->pipe));
++
++ /* Set that all isoc packets have status and length set before
++ completing the urb. */
++ for (i = urb_priv->isoc_packet_counter; i < urb->number_of_packets; i++){
++ urb->iso_frame_desc[i].actual_length = 0;
++ urb->iso_frame_desc[i].status = -EPROTO;
++ }
++
++ /* Check if the URB is currently active (done or error) */
++ if(urb == activeUrbList[epid]) {
++ /* Check if there are another In Isoc URB queued for this epid */
++ if (!list_empty(&urb_list[epid])&& !epid_state[epid].disabled) {
++ /* Move it from queue to active and mark it started so Isoc transfers
++ won't be interrupted.
++ All Isoc URBs data transfers are already added to DMA lists so we
++ don't have to insert anything in DMA lists here. */
++ activeUrbList[epid] = urb_list_first(epid);
++ ((struct crisv10_urb_priv *)(activeUrbList[epid]->hcpriv))->urb_state =
++ STARTED;
++ urb_list_del(activeUrbList[epid], epid);
++
++ if(urb->status) {
++ errno_dbg("finish_isoc_urb (URB:0x%x[%d] %s %s) (%d of %d packets)"
++ " status:%d, new waiting URB:0x%x[%d]\n",
++ (unsigned int)urb, urb_priv->urb_num, str_dir(urb->pipe),
++ str_type(urb->pipe), urb_priv->isoc_packet_counter,
++ urb->number_of_packets, urb->status,
++ (unsigned int)activeUrbList[epid],
++ ((struct crisv10_urb_priv *)(activeUrbList[epid]->hcpriv))->urb_num);
++ }
++
++ } else { /* No other URB queued for this epid */
++ if(urb->status) {
++ errno_dbg("finish_isoc_urb (URB:0x%x[%d] %s %s) (%d of %d packets)"
++ " status:%d, no new URB waiting\n",
++ (unsigned int)urb, urb_priv->urb_num, str_dir(urb->pipe),
++ str_type(urb->pipe), urb_priv->isoc_packet_counter,
++ urb->number_of_packets, urb->status);
++ }
++
++ /* Check if EP is still enabled, then shut it down. */
++ if (TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
++ isoc_dbg("Isoc EP enabled for epid:%d, disabling it\n", epid);
++
++ /* Should only occur for In Isoc EPs where SB isn't consumed. */
++ ASSERT(usb_pipein(urb->pipe));
++
++ /* Disable it and wait for it to stop */
++ TxIsocEPList[epid].command &= ~IO_MASK(USB_EP_command, enable);
++
++ /* Ah, the luxury of busy-wait. */
++ while((*R_DMA_CH8_SUB3_EP == virt_to_phys(&TxIsocEPList[epid])) &&
++ (timeout-- > 0));
++ if(timeout == 0) {
++ warn("Timeout while waiting for DMA-TX-Isoc to leave EP for epid:%d\n", epid);
++ }
++ }
++
++ /* Unlink SB to say that epid is finished. */
++ TxIsocEPList[epid].sub = 0;
++ TxIsocEPList[epid].hw_len = 0;
++
++ /* No URB active for EP anymore */
++ activeUrbList[epid] = NULL;
++ }
++ } else { /* Finishing of not active URB (queued up with SBs thought) */
++ isoc_warn("finish_isoc_urb (URB:0x%x %s) (%d of %d packets) status:%d,"
++ " SB queued but not active\n",
++ (unsigned int)urb, str_dir(urb->pipe),
++ urb_priv->isoc_packet_counter, urb->number_of_packets,
++ urb->status);
++ if(usb_pipeout(urb->pipe)) {
++ /* Finishing of not yet active Out Isoc URB needs unlinking of SBs. */
++ struct USB_SB_Desc *iter_sb, *prev_sb, *next_sb;
++
++ iter_sb = TxIsocEPList[epid].sub ?
++ phys_to_virt(TxIsocEPList[epid].sub) : 0;
++ prev_sb = 0;
++
++ /* SB that is linked before this URBs first SB */
++ while (iter_sb && (iter_sb != urb_priv->first_sb)) {
++ prev_sb = iter_sb;
++ iter_sb = iter_sb->next ? phys_to_virt(iter_sb->next) : 0;
++ }
++
++ if (iter_sb == 0) {
++ /* Unlink of the URB currently being transmitted. */
++ prev_sb = 0;
++ iter_sb = TxIsocEPList[epid].sub ? phys_to_virt(TxIsocEPList[epid].sub) : 0;
++ }
++
++ while (iter_sb && (iter_sb != urb_priv->last_sb)) {
++ iter_sb = iter_sb->next ? phys_to_virt(iter_sb->next) : 0;
++ }
++
++ if (iter_sb) {
++ next_sb = iter_sb->next ? phys_to_virt(iter_sb->next) : 0;
++ } else {
++ /* This should only happen if the DMA has completed
++ processing the SB list for this EP while interrupts
++ are disabled. */
++ isoc_dbg("Isoc urb not found, already sent?\n");
++ next_sb = 0;
++ }
++ if (prev_sb) {
++ prev_sb->next = next_sb ? virt_to_phys(next_sb) : 0;
++ } else {
++ TxIsocEPList[epid].sub = next_sb ? virt_to_phys(next_sb) : 0;
++ }
++ }
++ }
++
++ /* Free HC-private URB data*/
++ urb_priv_free(hcd, urb);
++
++ usb_release_bandwidth(urb->dev, urb, 0);
++
++ /* Hand the URB from HCD to its USB device driver, using its completion
++ functions */
++ usb_hcd_giveback_urb (hcd, urb);
++}
++
++static __u32 urb_num = 0;
++
++/* allocate and initialize URB private data */
++static int urb_priv_create(struct usb_hcd *hcd, struct urb *urb, int epid,
++ int mem_flags) {
++ struct crisv10_urb_priv *urb_priv;
++
++ urb_priv = kmalloc(sizeof *urb_priv, mem_flags);
++ if (!urb_priv)
++ return -ENOMEM;
++ memset(urb_priv, 0, sizeof *urb_priv);
++
++ urb_priv->epid = epid;
++ urb_priv->urb_state = NOT_STARTED;
++
++ urb->hcpriv = urb_priv;
++ /* Assign URB a sequence number, and increment counter */
++ urb_priv->urb_num = urb_num;
++ urb_num++;
++ return 0;
++}
++
++/* free URB private data */
++static void urb_priv_free(struct usb_hcd *hcd, struct urb *urb) {
++ int i;
++ struct crisv10_urb_priv *urb_priv = urb->hcpriv;
++ ASSERT(urb_priv != 0);
++
++ /* Check it has any SBs linked that needs to be freed*/
++ if(urb_priv->first_sb != NULL) {
++ struct USB_SB_Desc *next_sb, *first_sb, *last_sb;
++ int i = 0;
++ first_sb = urb_priv->first_sb;
++ last_sb = urb_priv->last_sb;
++ ASSERT(last_sb);
++ while(first_sb != last_sb) {
++ next_sb = (struct USB_SB_Desc *)phys_to_virt(first_sb->next);
++ kmem_cache_free(usb_desc_cache, first_sb);
++ first_sb = next_sb;
++ i++;
++ }
++ kmem_cache_free(usb_desc_cache, last_sb);
++ i++;
++ }
++
++ /* Check if it has any EPs in its Intr pool that also needs to be freed */
++ if(urb_priv->intr_ep_pool_length > 0) {
++ for(i = 0; i < urb_priv->intr_ep_pool_length; i++) {
++ kfree(urb_priv->intr_ep_pool[i]);
++ }
++ /*
++ tc_dbg("Freed %d EPs from URB:0x%x EP pool\n",
++ urb_priv->intr_ep_pool_length, (unsigned int)urb);
++ */
++ }
++
++ kfree(urb_priv);
++ urb->hcpriv = NULL;
++}
++
++static int ep_priv_create(struct usb_host_endpoint *ep, int mem_flags) {
++ struct crisv10_ep_priv *ep_priv;
++
++ ep_priv = kmalloc(sizeof *ep_priv, mem_flags);
++ if (!ep_priv)
++ return -ENOMEM;
++ memset(ep_priv, 0, sizeof *ep_priv);
++
++ ep->hcpriv = ep_priv;
++ return 0;
++}
++
++static void ep_priv_free(struct usb_host_endpoint *ep) {
++ struct crisv10_ep_priv *ep_priv = ep->hcpriv;
++ ASSERT(ep_priv);
++ kfree(ep_priv);
++ ep->hcpriv = NULL;
++}
++
++/* EPID handling functions, managing EP-list in Etrax through wrappers */
++/* ------------------------------------------------------------------- */
++
++/* Sets up a new EPID for an endpoint or returns existing if found */
++static int tc_setup_epid(struct usb_host_endpoint *ep, struct urb *urb,
++ int mem_flags) {
++ int epid;
++ char devnum, endpoint, out_traffic, slow;
++ int maxlen;
++ __u32 epid_data;
++ struct crisv10_ep_priv *ep_priv = ep->hcpriv;
++
++ DBFENTER;
++
++ /* Check if a valid epid already is setup for this endpoint */
++ if(ep_priv != NULL) {
++ return ep_priv->epid;
++ }
++
++ /* We must find and initiate a new epid for this urb. */
++ epid = tc_allocate_epid();
++
++ if (epid == -1) {
++ /* Failed to allocate a new epid. */
++ DBFEXIT;
++ return epid;
++ }
++
++ /* We now have a new epid to use. Claim it. */
++ epid_state[epid].inuse = 1;
++
++ /* Init private data for new endpoint */
++ if(ep_priv_create(ep, mem_flags) != 0) {
++ return -ENOMEM;
++ }
++ ep_priv = ep->hcpriv;
++ ep_priv->epid = epid;
++
++ devnum = usb_pipedevice(urb->pipe);
++ endpoint = usb_pipeendpoint(urb->pipe);
++ slow = (urb->dev->speed == USB_SPEED_LOW);
++ maxlen = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe));
++
++ if (usb_pipetype(urb->pipe) == PIPE_CONTROL) {
++ /* We want both IN and OUT control traffic to be put on the same
++ EP/SB list. */
++ out_traffic = 1;
++ } else {
++ out_traffic = usb_pipeout(urb->pipe);
++ }
++
++ if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
++ epid_data = IO_STATE(R_USB_EPT_DATA_ISO, valid, yes) |
++ /* FIXME: Change any to the actual port? */
++ IO_STATE(R_USB_EPT_DATA_ISO, port, any) |
++ IO_FIELD(R_USB_EPT_DATA_ISO, max_len, maxlen) |
++ IO_FIELD(R_USB_EPT_DATA_ISO, ep, endpoint) |
++ IO_FIELD(R_USB_EPT_DATA_ISO, dev, devnum);
++ etrax_epid_iso_set(epid, epid_data);
++ } else {
++ epid_data = IO_STATE(R_USB_EPT_DATA, valid, yes) |
++ IO_FIELD(R_USB_EPT_DATA, low_speed, slow) |
++ /* FIXME: Change any to the actual port? */
++ IO_STATE(R_USB_EPT_DATA, port, any) |
++ IO_FIELD(R_USB_EPT_DATA, max_len, maxlen) |
++ IO_FIELD(R_USB_EPT_DATA, ep, endpoint) |
++ IO_FIELD(R_USB_EPT_DATA, dev, devnum);
++ etrax_epid_set(epid, epid_data);
++ }
++
++ epid_state[epid].out_traffic = out_traffic;
++ epid_state[epid].type = usb_pipetype(urb->pipe);
++
++ tc_warn("Setting up ep:0x%x epid:%d (addr:%d endp:%d max_len:%d %s %s %s)\n",
++ (unsigned int)ep, epid, devnum, endpoint, maxlen,
++ str_type(urb->pipe), out_traffic ? "out" : "in",
++ slow ? "low" : "full");
++
++ /* Enable Isoc eof interrupt if we set up the first Isoc epid */
++ if(usb_pipeisoc(urb->pipe)) {
++ isoc_epid_counter++;
++ if(isoc_epid_counter == 1) {
++ isoc_warn("Enabled Isoc eof interrupt\n");
++ *R_USB_IRQ_MASK_SET |= IO_STATE(R_USB_IRQ_MASK_SET, iso_eof, set);
++ }
++ }
++
++ DBFEXIT;
++ return epid;
++}
++
++static void tc_free_epid(struct usb_host_endpoint *ep) {
++ unsigned long flags;
++ struct crisv10_ep_priv *ep_priv = ep->hcpriv;
++ int epid;
++ volatile int timeout = 10000;
++
++ DBFENTER;
++
++ if (ep_priv == NULL) {
++ tc_warn("Trying to free unused epid on ep:0x%x\n", (unsigned int)ep);
++ DBFEXIT;
++ return;
++ }
++
++ epid = ep_priv->epid;
++
++ /* Disable Isoc eof interrupt if we free the last Isoc epid */
++ if(epid_isoc(epid)) {
++ ASSERT(isoc_epid_counter > 0);
++ isoc_epid_counter--;
++ if(isoc_epid_counter == 0) {
++ *R_USB_IRQ_MASK_SET &= ~IO_STATE(R_USB_IRQ_MASK_SET, iso_eof, set);
++ isoc_warn("Disabled Isoc eof interrupt\n");
++ }
++ }
++
++ /* Take lock manualy instead of in epid_x_x wrappers,
++ because we need to be polling here */
++ spin_lock_irqsave(&etrax_epid_lock, flags);
++
++ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, epid);
++ nop();
++ while((*R_USB_EPT_DATA & IO_MASK(R_USB_EPT_DATA, hold)) &&
++ (timeout-- > 0));
++ if(timeout == 0) {
++ warn("Timeout while waiting for epid:%d to drop hold\n", epid);
++ }
++ /* This will, among other things, set the valid field to 0. */
++ *R_USB_EPT_DATA = 0;
++ spin_unlock_irqrestore(&etrax_epid_lock, flags);
++
++ /* Free resource in software state info list */
++ epid_state[epid].inuse = 0;
++
++ /* Free private endpoint data */
++ ep_priv_free(ep);
++
++ DBFEXIT;
++}
++
++static int tc_allocate_epid(void) {
++ int i;
++ DBFENTER;
++ for (i = 0; i < NBR_OF_EPIDS; i++) {
++ if (!epid_inuse(i)) {
++ DBFEXIT;
++ return i;
++ }
++ }
++
++ tc_warn("Found no free epids\n");
++ DBFEXIT;
++ return -1;
++}
++
++
++/* Wrappers around the list functions (include/linux/list.h). */
++/* ---------------------------------------------------------- */
++static inline int __urb_list_empty(int epid) {
++ int retval;
++ retval = list_empty(&urb_list[epid]);
++ return retval;
++}
++
++/* Returns first urb for this epid, or NULL if list is empty. */
++static inline struct urb *urb_list_first(int epid) {
++ unsigned long flags;
++ struct urb *first_urb = 0;
++ spin_lock_irqsave(&urb_list_lock, flags);
++ if (!__urb_list_empty(epid)) {
++ /* Get the first urb (i.e. head->next). */
++ urb_entry_t *urb_entry = list_entry((&urb_list[epid])->next, urb_entry_t, list);
++ first_urb = urb_entry->urb;
++ }
++ spin_unlock_irqrestore(&urb_list_lock, flags);
++ return first_urb;
++}
++
++/* Adds an urb_entry last in the list for this epid. */
++static inline void urb_list_add(struct urb *urb, int epid, int mem_flags) {
++ unsigned long flags;
++ urb_entry_t *urb_entry = (urb_entry_t *)kmalloc(sizeof(urb_entry_t), mem_flags);
++ ASSERT(urb_entry);
++
++ urb_entry->urb = urb;
++ spin_lock_irqsave(&urb_list_lock, flags);
++ list_add_tail(&urb_entry->list, &urb_list[epid]);
++ spin_unlock_irqrestore(&urb_list_lock, flags);
++}
++
++/* Search through the list for an element that contains this urb. (The list
++ is expected to be short and the one we are about to delete will often be
++ the first in the list.)
++ Should be protected by spin_locks in calling function */
++static inline urb_entry_t *__urb_list_entry(struct urb *urb, int epid) {
++ struct list_head *entry;
++ struct list_head *tmp;
++ urb_entry_t *urb_entry;
++
++ list_for_each_safe(entry, tmp, &urb_list[epid]) {
++ urb_entry = list_entry(entry, urb_entry_t, list);
++ ASSERT(urb_entry);
++ ASSERT(urb_entry->urb);
++
++ if (urb_entry->urb == urb) {
++ return urb_entry;
++ }
++ }
++ return 0;
++}
++
++/* Same function as above but for global use. Protects list by spinlock */
++static inline urb_entry_t *urb_list_entry(struct urb *urb, int epid) {
++ unsigned long flags;
++ urb_entry_t *urb_entry;
++ spin_lock_irqsave(&urb_list_lock, flags);
++ urb_entry = __urb_list_entry(urb, epid);
++ spin_unlock_irqrestore(&urb_list_lock, flags);
++ return (urb_entry);
++}
++
++/* Delete an urb from the list. */
++static inline void urb_list_del(struct urb *urb, int epid) {
++ unsigned long flags;
++ urb_entry_t *urb_entry;
++
++ /* Delete entry and free. */
++ spin_lock_irqsave(&urb_list_lock, flags);
++ urb_entry = __urb_list_entry(urb, epid);
++ ASSERT(urb_entry);
++
++ list_del(&urb_entry->list);
++ spin_unlock_irqrestore(&urb_list_lock, flags);
++ kfree(urb_entry);
++}
++
++/* Move an urb to the end of the list. */
++static inline void urb_list_move_last(struct urb *urb, int epid) {
++ unsigned long flags;
++ urb_entry_t *urb_entry;
++
++ spin_lock_irqsave(&urb_list_lock, flags);
++ urb_entry = __urb_list_entry(urb, epid);
++ ASSERT(urb_entry);
++
++ list_del(&urb_entry->list);
++ list_add_tail(&urb_entry->list, &urb_list[epid]);
++ spin_unlock_irqrestore(&urb_list_lock, flags);
++}
++
++/* Get the next urb in the list. */
++static inline struct urb *urb_list_next(struct urb *urb, int epid) {
++ unsigned long flags;
++ urb_entry_t *urb_entry;
++
++ spin_lock_irqsave(&urb_list_lock, flags);
++ urb_entry = __urb_list_entry(urb, epid);
++ ASSERT(urb_entry);
++
++ if (urb_entry->list.next != &urb_list[epid]) {
++ struct list_head *elem = urb_entry->list.next;
++ urb_entry = list_entry(elem, urb_entry_t, list);
++ spin_unlock_irqrestore(&urb_list_lock, flags);
++ return urb_entry->urb;
++ } else {
++ spin_unlock_irqrestore(&urb_list_lock, flags);
++ return NULL;
++ }
++}
++
++struct USB_EP_Desc* create_ep(int epid, struct USB_SB_Desc* sb_desc,
++ int mem_flags) {
++ struct USB_EP_Desc *ep_desc;
++ ep_desc = (struct USB_EP_Desc *) kmem_cache_alloc(usb_desc_cache, mem_flags);
++ if(ep_desc == NULL)
++ return NULL;
++ memset(ep_desc, 0, sizeof(struct USB_EP_Desc));
++
++ ep_desc->hw_len = 0;
++ ep_desc->command = (IO_FIELD(USB_EP_command, epid, epid) |
++ IO_STATE(USB_EP_command, enable, yes));
++ if(sb_desc == NULL) {
++ ep_desc->sub = 0;
++ } else {
++ ep_desc->sub = virt_to_phys(sb_desc);
++ }
++ return ep_desc;
++}
++
++#define TT_ZOUT 0
++#define TT_IN 1
++#define TT_OUT 2
++#define TT_SETUP 3
++
++#define CMD_EOL IO_STATE(USB_SB_command, eol, yes)
++#define CMD_INTR IO_STATE(USB_SB_command, intr, yes)
++#define CMD_FULL IO_STATE(USB_SB_command, full, yes)
++
++/* Allocation and setup of a generic SB. Used to create SETUP, OUT and ZOUT
++ SBs. Also used by create_sb_in() to avoid same allocation procedure at two
++ places */
++struct USB_SB_Desc* create_sb(struct USB_SB_Desc* sb_prev, int tt, void* data,
++ int datalen, int mem_flags) {
++ struct USB_SB_Desc *sb_desc;
++ sb_desc = (struct USB_SB_Desc*)kmem_cache_alloc(usb_desc_cache, mem_flags);
++ if(sb_desc == NULL)
++ return NULL;
++ memset(sb_desc, 0, sizeof(struct USB_SB_Desc));
++
++ sb_desc->command = IO_FIELD(USB_SB_command, tt, tt) |
++ IO_STATE(USB_SB_command, eot, yes);
++
++ sb_desc->sw_len = datalen;
++ if(data != NULL) {
++ sb_desc->buf = virt_to_phys(data);
++ } else {
++ sb_desc->buf = 0;
++ }
++ if(sb_prev != NULL) {
++ sb_prev->next = virt_to_phys(sb_desc);
++ }
++ return sb_desc;
++}
++
++/* Creates a copy of an existing SB by allocation space for it and copy
++ settings */
++struct USB_SB_Desc* create_sb_copy(struct USB_SB_Desc* sb_orig, int mem_flags) {
++ struct USB_SB_Desc *sb_desc;
++ sb_desc = (struct USB_SB_Desc*)kmem_cache_alloc(usb_desc_cache, mem_flags);
++ if(sb_desc == NULL)
++ return NULL;
++
++ memcpy(sb_desc, sb_orig, sizeof(struct USB_SB_Desc));
++ return sb_desc;
++}
++
++/* A specific create_sb function for creation of in SBs. This is due to
++ that datalen in In SBs shows how many packets we are expecting. It also
++ sets up the rem field to show if how many bytes we expect in last packet
++ if it's not a full one */
++struct USB_SB_Desc* create_sb_in(struct USB_SB_Desc* sb_prev, int datalen,
++ int maxlen, int mem_flags) {
++ struct USB_SB_Desc *sb_desc;
++ sb_desc = create_sb(sb_prev, TT_IN, NULL,
++ datalen ? (datalen - 1) / maxlen + 1 : 0, mem_flags);
++ if(sb_desc == NULL)
++ return NULL;
++ sb_desc->command |= IO_FIELD(USB_SB_command, rem, datalen % maxlen);
++ return sb_desc;
++}
++
++void set_sb_cmds(struct USB_SB_Desc *sb_desc, __u16 flags) {
++ sb_desc->command |= flags;
++}
++
++int create_sb_for_urb(struct urb *urb, int mem_flags) {
++ int is_out = !usb_pipein(urb->pipe);
++ int type = usb_pipetype(urb->pipe);
++ int maxlen = usb_maxpacket(urb->dev, urb->pipe, is_out);
++ int buf_len = urb->transfer_buffer_length;
++ void *buf = buf_len > 0 ? urb->transfer_buffer : NULL;
++ struct USB_SB_Desc *sb_desc = NULL;
++
++ struct crisv10_urb_priv *urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ ASSERT(urb_priv != NULL);
++
++ switch(type) {
++ case PIPE_CONTROL:
++ /* Setup stage */
++ sb_desc = create_sb(NULL, TT_SETUP, urb->setup_packet, 8, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++ set_sb_cmds(sb_desc, CMD_FULL);
++
++ /* Attach first SB to URB */
++ urb_priv->first_sb = sb_desc;
++
++ if (is_out) { /* Out Control URB */
++ /* If this Control OUT transfer has an optional data stage we add
++ an OUT token before the mandatory IN (status) token */
++ if ((buf_len > 0) && buf) {
++ sb_desc = create_sb(sb_desc, TT_OUT, buf, buf_len, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++ set_sb_cmds(sb_desc, CMD_FULL);
++ }
++
++ /* Status stage */
++ /* The data length has to be exactly 1. This is due to a requirement
++ of the USB specification that a host must be prepared to receive
++ data in the status phase */
++ sb_desc = create_sb(sb_desc, TT_IN, NULL, 1, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++ } else { /* In control URB */
++ /* Data stage */
++ sb_desc = create_sb_in(sb_desc, buf_len, maxlen, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++
++ /* Status stage */
++ /* Read comment at zout_buffer declaration for an explanation to this. */
++ sb_desc = create_sb(sb_desc, TT_ZOUT, &zout_buffer[0], 1, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++ /* Set descriptor interrupt flag for in URBs so we can finish URB after
++ zout-packet has been sent */
++ set_sb_cmds(sb_desc, CMD_INTR | CMD_FULL);
++ }
++ /* Set end-of-list flag in last SB */
++ set_sb_cmds(sb_desc, CMD_EOL);
++ /* Attach last SB to URB */
++ urb_priv->last_sb = sb_desc;
++ break;
++
++ case PIPE_BULK:
++ if (is_out) { /* Out Bulk URB */
++ sb_desc = create_sb(NULL, TT_OUT, buf, buf_len, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++ /* The full field is set to yes, even if we don't actually check that
++ this is a full-length transfer (i.e., that transfer_buffer_length %
++ maxlen = 0).
++ Setting full prevents the USB controller from sending an empty packet
++ in that case. However, if URB_ZERO_PACKET was set we want that. */
++ if (!(urb->transfer_flags & URB_ZERO_PACKET)) {
++ set_sb_cmds(sb_desc, CMD_FULL);
++ }
++ } else { /* In Bulk URB */
++ sb_desc = create_sb_in(NULL, buf_len, maxlen, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++ }
++ /* Set end-of-list flag for last SB */
++ set_sb_cmds(sb_desc, CMD_EOL);
++
++ /* Attach SB to URB */
++ urb_priv->first_sb = sb_desc;
++ urb_priv->last_sb = sb_desc;
++ break;
++
++ case PIPE_INTERRUPT:
++ if(is_out) { /* Out Intr URB */
++ sb_desc = create_sb(NULL, TT_OUT, buf, buf_len, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++
++ /* The full field is set to yes, even if we don't actually check that
++ this is a full-length transfer (i.e., that transfer_buffer_length %
++ maxlen = 0).
++ Setting full prevents the USB controller from sending an empty packet
++ in that case. However, if URB_ZERO_PACKET was set we want that. */
++ if (!(urb->transfer_flags & URB_ZERO_PACKET)) {
++ set_sb_cmds(sb_desc, CMD_FULL);
++ }
++ /* Only generate TX interrupt if it's a Out URB*/
++ set_sb_cmds(sb_desc, CMD_INTR);
++
++ } else { /* In Intr URB */
++ sb_desc = create_sb_in(NULL, buf_len, maxlen, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++ }
++ /* Set end-of-list flag for last SB */
++ set_sb_cmds(sb_desc, CMD_EOL);
++
++ /* Attach SB to URB */
++ urb_priv->first_sb = sb_desc;
++ urb_priv->last_sb = sb_desc;
++
++ break;
++ case PIPE_ISOCHRONOUS:
++ if(is_out) { /* Out Isoc URB */
++ int i;
++ if(urb->number_of_packets == 0) {
++ tc_err("Can't create SBs for Isoc URB with zero packets\n");
++ return -EPIPE;
++ }
++ /* Create one SB descriptor for each packet and link them together. */
++ for(i = 0; i < urb->number_of_packets; i++) {
++ if (urb->iso_frame_desc[i].length > 0) {
++
++ sb_desc = create_sb(sb_desc, TT_OUT, urb->transfer_buffer +
++ urb->iso_frame_desc[i].offset,
++ urb->iso_frame_desc[i].length, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++
++ /* Check if it's a full length packet */
++ if (urb->iso_frame_desc[i].length ==
++ usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe))) {
++ set_sb_cmds(sb_desc, CMD_FULL);
++ }
++
++ } else { /* zero length packet */
++ sb_desc = create_sb(sb_desc, TT_ZOUT, &zout_buffer[0], 1, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++ set_sb_cmds(sb_desc, CMD_FULL);
++ }
++ /* Attach first SB descriptor to URB */
++ if (i == 0) {
++ urb_priv->first_sb = sb_desc;
++ }
++ }
++ /* Set interrupt and end-of-list flags in last SB */
++ set_sb_cmds(sb_desc, CMD_INTR | CMD_EOL);
++ /* Attach last SB descriptor to URB */
++ urb_priv->last_sb = sb_desc;
++ tc_dbg("Created %d out SBs for Isoc URB:0x%x\n",
++ urb->number_of_packets, (unsigned int)urb);
++ } else { /* In Isoc URB */
++ /* Actual number of packets is not relevant for periodic in traffic as
++ long as it is more than zero. Set to 1 always. */
++ sb_desc = create_sb(sb_desc, TT_IN, NULL, 1, mem_flags);
++ if(sb_desc == NULL)
++ return -ENOMEM;
++ /* Set end-of-list flags for SB */
++ set_sb_cmds(sb_desc, CMD_EOL);
++
++ /* Attach SB to URB */
++ urb_priv->first_sb = sb_desc;
++ urb_priv->last_sb = sb_desc;
++ }
++ break;
++ default:
++ tc_err("Unknown pipe-type\n");
++ return -EPIPE;
++ break;
++ }
++ return 0;
++}
++
++int init_intr_urb(struct urb *urb, int mem_flags) {
++ struct crisv10_urb_priv *urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ struct USB_EP_Desc* ep_desc;
++ int interval;
++ int i;
++ int ep_count;
++
++ ASSERT(urb_priv != NULL);
++ ASSERT(usb_pipeint(urb->pipe));
++ /* We can't support interval longer than amount of eof descriptors in
++ TxIntrEPList */
++ if(urb->interval > MAX_INTR_INTERVAL) {
++ tc_err("Interrupt interval %dms too big (max: %dms)\n", urb->interval,
++ MAX_INTR_INTERVAL);
++ return -EINVAL;
++ }
++
++ /* We assume that the SB descriptors already have been setup */
++ ASSERT(urb_priv->first_sb != NULL);
++
++ /* Round of the interval to 2^n, it is obvious that this code favours
++ smaller numbers, but that is actually a good thing */
++ /* FIXME: The "rounding error" for larger intervals will be quite
++ large. For in traffic this shouldn't be a problem since it will only
++ mean that we "poll" more often. */
++ interval = urb->interval;
++ for (i = 0; interval; i++) {
++ interval = interval >> 1;
++ }
++ urb_priv->interval = 1 << (i - 1);
++
++ /* We can only have max interval for Out Interrupt due to that we can only
++ handle one linked in EP for a certain epid in the Intr descr array at the
++ time. The USB Controller in the Etrax 100LX continues to process Intr EPs
++ so we have no way of knowing which one that caused the actual transfer if
++ we have several linked in. */
++ if(usb_pipeout(urb->pipe)) {
++ urb_priv->interval = MAX_INTR_INTERVAL;
++ }
++
++ /* Calculate amount of EPs needed */
++ ep_count = MAX_INTR_INTERVAL / urb_priv->interval;
++
++ for(i = 0; i < ep_count; i++) {
++ ep_desc = create_ep(urb_priv->epid, urb_priv->first_sb, mem_flags);
++ if(ep_desc == NULL) {
++ /* Free any descriptors that we may have allocated before failure */
++ while(i > 0) {
++ i--;
++ kfree(urb_priv->intr_ep_pool[i]);
++ }
++ return -ENOMEM;
++ }
++ urb_priv->intr_ep_pool[i] = ep_desc;
++ }
++ urb_priv->intr_ep_pool_length = ep_count;
++ return 0;
++}
++
++/* DMA RX/TX functions */
++/* ----------------------- */
++
++static void tc_dma_init_rx_list(void) {
++ int i;
++
++ /* Setup descriptor list except last one */
++ for (i = 0; i < (NBR_OF_RX_DESC - 1); i++) {
++ RxDescList[i].sw_len = RX_DESC_BUF_SIZE;
++ RxDescList[i].command = 0;
++ RxDescList[i].next = virt_to_phys(&RxDescList[i + 1]);
++ RxDescList[i].buf = virt_to_phys(RxBuf + (i * RX_DESC_BUF_SIZE));
++ RxDescList[i].hw_len = 0;
++ RxDescList[i].status = 0;
++
++ /* DMA IN cache bug. (struct etrax_dma_descr has the same layout as
++ USB_IN_Desc for the relevant fields.) */
++ prepare_rx_descriptor((struct etrax_dma_descr*)&RxDescList[i]);
++
++ }
++ /* Special handling of last descriptor */
++ RxDescList[i].sw_len = RX_DESC_BUF_SIZE;
++ RxDescList[i].command = IO_STATE(USB_IN_command, eol, yes);
++ RxDescList[i].next = virt_to_phys(&RxDescList[0]);
++ RxDescList[i].buf = virt_to_phys(RxBuf + (i * RX_DESC_BUF_SIZE));
++ RxDescList[i].hw_len = 0;
++ RxDescList[i].status = 0;
++
++ /* Setup list pointers that show progress in list */
++ myNextRxDesc = &RxDescList[0];
++ myLastRxDesc = &RxDescList[NBR_OF_RX_DESC - 1];
++
++ flush_etrax_cache();
++ /* Point DMA to first descriptor in list and start it */
++ *R_DMA_CH9_FIRST = virt_to_phys(myNextRxDesc);
++ *R_DMA_CH9_CMD = IO_STATE(R_DMA_CH9_CMD, cmd, start);
++}
++
++
++static void tc_dma_init_tx_bulk_list(void) {
++ int i;
++ volatile struct USB_EP_Desc *epDescr;
++
++ for (i = 0; i < (NBR_OF_EPIDS - 1); i++) {
++ epDescr = &(TxBulkEPList[i]);
++ CHECK_ALIGN(epDescr);
++ epDescr->hw_len = 0;
++ epDescr->command = IO_FIELD(USB_EP_command, epid, i);
++ epDescr->sub = 0;
++ epDescr->next = virt_to_phys(&TxBulkEPList[i + 1]);
++
++ /* Initiate two EPs, disabled and with the eol flag set. No need for any
++ preserved epid. */
++
++ /* The first one has the intr flag set so we get an interrupt when the DMA
++ channel is about to become disabled. */
++ CHECK_ALIGN(&TxBulkDummyEPList[i][0]);
++ TxBulkDummyEPList[i][0].hw_len = 0;
++ TxBulkDummyEPList[i][0].command = (IO_FIELD(USB_EP_command, epid, DUMMY_EPID) |
++ IO_STATE(USB_EP_command, eol, yes) |
++ IO_STATE(USB_EP_command, intr, yes));
++ TxBulkDummyEPList[i][0].sub = 0;
++ TxBulkDummyEPList[i][0].next = virt_to_phys(&TxBulkDummyEPList[i][1]);
++
++ /* The second one. */
++ CHECK_ALIGN(&TxBulkDummyEPList[i][1]);
++ TxBulkDummyEPList[i][1].hw_len = 0;
++ TxBulkDummyEPList[i][1].command = (IO_FIELD(USB_EP_command, epid, DUMMY_EPID) |
++ IO_STATE(USB_EP_command, eol, yes));
++ TxBulkDummyEPList[i][1].sub = 0;
++ /* The last dummy's next pointer is the same as the current EP's next pointer. */
++ TxBulkDummyEPList[i][1].next = virt_to_phys(&TxBulkEPList[i + 1]);
++ }
++
++ /* Special handling of last descr in list, make list circular */
++ epDescr = &TxBulkEPList[i];
++ CHECK_ALIGN(epDescr);
++ epDescr->hw_len = 0;
++ epDescr->command = IO_STATE(USB_EP_command, eol, yes) |
++ IO_FIELD(USB_EP_command, epid, i);
++ epDescr->sub = 0;
++ epDescr->next = virt_to_phys(&TxBulkEPList[0]);
++
++ /* Init DMA sub-channel pointers to last item in each list */
++ *R_DMA_CH8_SUB0_EP = virt_to_phys(&TxBulkEPList[i]);
++ /* No point in starting the bulk channel yet.
++ *R_DMA_CH8_SUB0_CMD = IO_STATE(R_DMA_CH8_SUB0_CMD, cmd, start); */
++}
++
++static void tc_dma_init_tx_ctrl_list(void) {
++ int i;
++ volatile struct USB_EP_Desc *epDescr;
++
++ for (i = 0; i < (NBR_OF_EPIDS - 1); i++) {
++ epDescr = &(TxCtrlEPList[i]);
++ CHECK_ALIGN(epDescr);
++ epDescr->hw_len = 0;
++ epDescr->command = IO_FIELD(USB_EP_command, epid, i);
++ epDescr->sub = 0;
++ epDescr->next = virt_to_phys(&TxCtrlEPList[i + 1]);
++ }
++ /* Special handling of last descr in list, make list circular */
++ epDescr = &TxCtrlEPList[i];
++ CHECK_ALIGN(epDescr);
++ epDescr->hw_len = 0;
++ epDescr->command = IO_STATE(USB_EP_command, eol, yes) |
++ IO_FIELD(USB_EP_command, epid, i);
++ epDescr->sub = 0;
++ epDescr->next = virt_to_phys(&TxCtrlEPList[0]);
++
++ /* Init DMA sub-channel pointers to last item in each list */
++ *R_DMA_CH8_SUB1_EP = virt_to_phys(&TxCtrlEPList[i]);
++ /* No point in starting the ctrl channel yet.
++ *R_DMA_CH8_SUB1_CMD = IO_STATE(R_DMA_CH8_SUB0_CMD, cmd, start); */
++}
++
++
++static void tc_dma_init_tx_intr_list(void) {
++ int i;
++
++ TxIntrSB_zout.sw_len = 1;
++ TxIntrSB_zout.next = 0;
++ TxIntrSB_zout.buf = virt_to_phys(&zout_buffer[0]);
++ TxIntrSB_zout.command = (IO_FIELD(USB_SB_command, rem, 0) |
++ IO_STATE(USB_SB_command, tt, zout) |
++ IO_STATE(USB_SB_command, full, yes) |
++ IO_STATE(USB_SB_command, eot, yes) |
++ IO_STATE(USB_SB_command, eol, yes));
++
++ for (i = 0; i < (MAX_INTR_INTERVAL - 1); i++) {
++ CHECK_ALIGN(&TxIntrEPList[i]);
++ TxIntrEPList[i].hw_len = 0;
++ TxIntrEPList[i].command =
++ (IO_STATE(USB_EP_command, eof, yes) |
++ IO_STATE(USB_EP_command, enable, yes) |
++ IO_FIELD(USB_EP_command, epid, INVALID_EPID));
++ TxIntrEPList[i].sub = virt_to_phys(&TxIntrSB_zout);
++ TxIntrEPList[i].next = virt_to_phys(&TxIntrEPList[i + 1]);
++ }
++
++ /* Special handling of last descr in list, make list circular */
++ CHECK_ALIGN(&TxIntrEPList[i]);
++ TxIntrEPList[i].hw_len = 0;
++ TxIntrEPList[i].command =
++ (IO_STATE(USB_EP_command, eof, yes) |
++ IO_STATE(USB_EP_command, eol, yes) |
++ IO_STATE(USB_EP_command, enable, yes) |
++ IO_FIELD(USB_EP_command, epid, INVALID_EPID));
++ TxIntrEPList[i].sub = virt_to_phys(&TxIntrSB_zout);
++ TxIntrEPList[i].next = virt_to_phys(&TxIntrEPList[0]);
++
++ intr_dbg("Initiated Intr EP descriptor list\n");
++
++
++ /* Connect DMA 8 sub-channel 2 to first in list */
++ *R_DMA_CH8_SUB2_EP = virt_to_phys(&TxIntrEPList[0]);
++}
++
++static void tc_dma_init_tx_isoc_list(void) {
++ int i;
++
++ DBFENTER;
++
++ /* Read comment at zout_buffer declaration for an explanation to this. */
++ TxIsocSB_zout.sw_len = 1;
++ TxIsocSB_zout.next = 0;
++ TxIsocSB_zout.buf = virt_to_phys(&zout_buffer[0]);
++ TxIsocSB_zout.command = (IO_FIELD(USB_SB_command, rem, 0) |
++ IO_STATE(USB_SB_command, tt, zout) |
++ IO_STATE(USB_SB_command, full, yes) |
++ IO_STATE(USB_SB_command, eot, yes) |
++ IO_STATE(USB_SB_command, eol, yes));
++
++ /* The last isochronous EP descriptor is a dummy. */
++ for (i = 0; i < (NBR_OF_EPIDS - 1); i++) {
++ CHECK_ALIGN(&TxIsocEPList[i]);
++ TxIsocEPList[i].hw_len = 0;
++ TxIsocEPList[i].command = IO_FIELD(USB_EP_command, epid, i);
++ TxIsocEPList[i].sub = 0;
++ TxIsocEPList[i].next = virt_to_phys(&TxIsocEPList[i + 1]);
++ }
++
++ CHECK_ALIGN(&TxIsocEPList[i]);
++ TxIsocEPList[i].hw_len = 0;
++
++ /* Must enable the last EP descr to get eof interrupt. */
++ TxIsocEPList[i].command = (IO_STATE(USB_EP_command, enable, yes) |
++ IO_STATE(USB_EP_command, eof, yes) |
++ IO_STATE(USB_EP_command, eol, yes) |
++ IO_FIELD(USB_EP_command, epid, INVALID_EPID));
++ TxIsocEPList[i].sub = virt_to_phys(&TxIsocSB_zout);
++ TxIsocEPList[i].next = virt_to_phys(&TxIsocEPList[0]);
++
++ *R_DMA_CH8_SUB3_EP = virt_to_phys(&TxIsocEPList[0]);
++ *R_DMA_CH8_SUB3_CMD = IO_STATE(R_DMA_CH8_SUB3_CMD, cmd, start);
++}
++
++static int tc_dma_init(struct usb_hcd *hcd) {
++ tc_dma_init_rx_list();
++ tc_dma_init_tx_bulk_list();
++ tc_dma_init_tx_ctrl_list();
++ tc_dma_init_tx_intr_list();
++ tc_dma_init_tx_isoc_list();
++
++ if (cris_request_dma(USB_TX_DMA_NBR,
++ "ETRAX 100LX built-in USB (Tx)",
++ DMA_VERBOSE_ON_ERROR,
++ dma_usb)) {
++ err("Could not allocate DMA ch 8 for USB");
++ return -EBUSY;
++ }
++
++ if (cris_request_dma(USB_RX_DMA_NBR,
++ "ETRAX 100LX built-in USB (Rx)",
++ DMA_VERBOSE_ON_ERROR,
++ dma_usb)) {
++ err("Could not allocate DMA ch 9 for USB");
++ return -EBUSY;
++ }
++
++ *R_IRQ_MASK2_SET =
++ /* Note that these interrupts are not used. */
++ IO_STATE(R_IRQ_MASK2_SET, dma8_sub0_descr, set) |
++ /* Sub channel 1 (ctrl) descr. interrupts are used. */
++ IO_STATE(R_IRQ_MASK2_SET, dma8_sub1_descr, set) |
++ IO_STATE(R_IRQ_MASK2_SET, dma8_sub2_descr, set) |
++ /* Sub channel 3 (isoc) descr. interrupts are used. */
++ IO_STATE(R_IRQ_MASK2_SET, dma8_sub3_descr, set);
++
++ /* Note that the dma9_descr interrupt is not used. */
++ *R_IRQ_MASK2_SET =
++ IO_STATE(R_IRQ_MASK2_SET, dma9_eop, set) |
++ IO_STATE(R_IRQ_MASK2_SET, dma9_descr, set);
++
++ if (request_irq(ETRAX_USB_RX_IRQ, tc_dma_rx_interrupt, 0,
++ "ETRAX 100LX built-in USB (Rx)", hcd)) {
++ err("Could not allocate IRQ %d for USB", ETRAX_USB_RX_IRQ);
++ return -EBUSY;
++ }
++
++ if (request_irq(ETRAX_USB_TX_IRQ, tc_dma_tx_interrupt, 0,
++ "ETRAX 100LX built-in USB (Tx)", hcd)) {
++ err("Could not allocate IRQ %d for USB", ETRAX_USB_TX_IRQ);
++ return -EBUSY;
++ }
++
++ return 0;
++}
++
++static void tc_dma_destroy(void) {
++ free_irq(ETRAX_USB_RX_IRQ, NULL);
++ free_irq(ETRAX_USB_TX_IRQ, NULL);
++
++ cris_free_dma(USB_TX_DMA_NBR, "ETRAX 100LX built-in USB (Tx)");
++ cris_free_dma(USB_RX_DMA_NBR, "ETRAX 100LX built-in USB (Rx)");
++
++}
++
++static void tc_dma_link_intr_urb(struct urb *urb);
++
++/* Handle processing of Bulk, Ctrl and Intr queues */
++static void tc_dma_process_queue(int epid) {
++ struct urb *urb;
++ struct crisv10_urb_priv *urb_priv = urb->hcpriv;
++ unsigned long flags;
++ char toggle;
++
++ if(epid_state[epid].disabled) {
++ /* Don't process any URBs on a disabled endpoint */
++ return;
++ }
++
++ /* Do not disturb us while fiddling with EPs and epids */
++ local_irq_save(flags);
++
++ /* For bulk, Ctrl and Intr can we only have one URB active at a time for
++ a specific EP. */
++ if(activeUrbList[epid] != NULL) {
++ /* An URB is already active on EP, skip checking queue */
++ local_irq_restore(flags);
++ return;
++ }
++
++ urb = urb_list_first(epid);
++ if(urb == NULL) {
++ /* No URB waiting in EP queue. Nothing do to */
++ local_irq_restore(flags);
++ return;
++ }
++
++ urb_priv = urb->hcpriv;
++ ASSERT(urb_priv != NULL);
++ ASSERT(urb_priv->urb_state == NOT_STARTED);
++ ASSERT(!usb_pipeisoc(urb->pipe));
++
++ /* Remove this URB from the queue and move it to active */
++ activeUrbList[epid] = urb;
++ urb_list_del(urb, epid);
++
++ urb_priv->urb_state = STARTED;
++
++ /* Reset error counters (regardless of which direction this traffic is). */
++ etrax_epid_clear_error(epid);
++
++ /* Special handling of Intr EP lists */
++ if(usb_pipeint(urb->pipe)) {
++ tc_dma_link_intr_urb(urb);
++ local_irq_restore(flags);
++ return;
++ }
++
++ /* Software must preset the toggle bits for Bulk and Ctrl */
++ if(usb_pipecontrol(urb->pipe)) {
++ /* Toggle bits are initialized only during setup transaction in a
++ CTRL transfer */
++ etrax_epid_set_toggle(epid, 0, 0);
++ etrax_epid_set_toggle(epid, 1, 0);
++ } else {
++ toggle = usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe),
++ usb_pipeout(urb->pipe));
++ etrax_epid_set_toggle(epid, usb_pipeout(urb->pipe), toggle);
++ }
++
++ tc_dbg("Added SBs from (URB:0x%x %s %s) to epid %d: %s\n",
++ (unsigned int)urb, str_dir(urb->pipe), str_type(urb->pipe), epid,
++ sblist_to_str(urb_priv->first_sb));
++
++ /* We start the DMA sub channel without checking if it's running or not,
++ because:
++ 1) If it's already running, issuing the start command is a nop.
++ 2) We avoid a test-and-set race condition. */
++ switch(usb_pipetype(urb->pipe)) {
++ case PIPE_BULK:
++ /* Assert that the EP descriptor is disabled. */
++ ASSERT(!(TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)));
++
++ /* Set up and enable the EP descriptor. */
++ TxBulkEPList[epid].sub = virt_to_phys(urb_priv->first_sb);
++ TxBulkEPList[epid].hw_len = 0;
++ TxBulkEPList[epid].command |= IO_STATE(USB_EP_command, enable, yes);
++
++ /* Check if the dummy list is already with us (if several urbs were queued). */
++ if (usb_pipein(urb->pipe) && (TxBulkEPList[epid].next != virt_to_phys(&TxBulkDummyEPList[epid][0]))) {
++ tc_dbg("Inviting dummy list to the party for urb 0x%lx, epid %d",
++ (unsigned long)urb, epid);
++
++ /* We don't need to check if the DMA is at this EP or not before changing the
++ next pointer, since we will do it in one 32-bit write (EP descriptors are
++ 32-bit aligned). */
++ TxBulkEPList[epid].next = virt_to_phys(&TxBulkDummyEPList[epid][0]);
++ }
++
++ restart_dma8_sub0();
++
++ /* Update/restart the bulk start timer since we just started the channel.*/
++ mod_timer(&bulk_start_timer, jiffies + BULK_START_TIMER_INTERVAL);
++ /* Update/restart the bulk eot timer since we just inserted traffic. */
++ mod_timer(&bulk_eot_timer, jiffies + BULK_EOT_TIMER_INTERVAL);
++ break;
++ case PIPE_CONTROL:
++ /* Assert that the EP descriptor is disabled. */
++ ASSERT(!(TxCtrlEPList[epid].command & IO_MASK(USB_EP_command, enable)));
++
++ /* Set up and enable the EP descriptor. */
++ TxCtrlEPList[epid].sub = virt_to_phys(urb_priv->first_sb);
++ TxCtrlEPList[epid].hw_len = 0;
++ TxCtrlEPList[epid].command |= IO_STATE(USB_EP_command, enable, yes);
++
++ *R_DMA_CH8_SUB1_CMD = IO_STATE(R_DMA_CH8_SUB1_CMD, cmd, start);
++ break;
++ }
++ local_irq_restore(flags);
++}
++
++static void tc_dma_link_intr_urb(struct urb *urb) {
++ struct crisv10_urb_priv *urb_priv = urb->hcpriv;
++ volatile struct USB_EP_Desc *tmp_ep;
++ struct USB_EP_Desc *ep_desc;
++ int i = 0, epid;
++ int pool_idx = 0;
++
++ ASSERT(urb_priv != NULL);
++ epid = urb_priv->epid;
++ ASSERT(urb_priv->interval > 0);
++ ASSERT(urb_priv->intr_ep_pool_length > 0);
++
++ tmp_ep = &TxIntrEPList[0];
++
++ /* Only insert one EP descriptor in list for Out Intr URBs.
++ We can only handle Out Intr with interval of 128ms because
++ it's not possible to insert several Out Intr EPs because they
++ are not consumed by the DMA. */
++ if(usb_pipeout(urb->pipe)) {
++ ep_desc = urb_priv->intr_ep_pool[0];
++ ASSERT(ep_desc);
++ ep_desc->next = tmp_ep->next;
++ tmp_ep->next = virt_to_phys(ep_desc);
++ i++;
++ } else {
++ /* Loop through Intr EP descriptor list and insert EP for URB at
++ specified interval */
++ do {
++ /* Each EP descriptor with eof flag sat signals a new frame */
++ if (tmp_ep->command & IO_MASK(USB_EP_command, eof)) {
++ /* Insert a EP from URBs EP pool at correct interval */
++ if ((i % urb_priv->interval) == 0) {
++ ep_desc = urb_priv->intr_ep_pool[pool_idx];
++ ASSERT(ep_desc);
++ ep_desc->next = tmp_ep->next;
++ tmp_ep->next = virt_to_phys(ep_desc);
++ pool_idx++;
++ ASSERT(pool_idx <= urb_priv->intr_ep_pool_length);
++ }
++ i++;
++ }
++ tmp_ep = (struct USB_EP_Desc *)phys_to_virt(tmp_ep->next);
++ } while(tmp_ep != &TxIntrEPList[0]);
++ }
++
++ intr_dbg("Added SBs to intr epid %d: %s interval:%d (%d EP)\n", epid,
++ sblist_to_str(urb_priv->first_sb), urb_priv->interval, pool_idx);
++
++ /* We start the DMA sub channel without checking if it's running or not,
++ because:
++ 1) If it's already running, issuing the start command is a nop.
++ 2) We avoid a test-and-set race condition. */
++ *R_DMA_CH8_SUB2_CMD = IO_STATE(R_DMA_CH8_SUB2_CMD, cmd, start);
++}
++
++static void tc_dma_process_isoc_urb(struct urb *urb) {
++ unsigned long flags;
++ struct crisv10_urb_priv *urb_priv = urb->hcpriv;
++ int epid;
++
++ /* Do not disturb us while fiddling with EPs and epids */
++ local_irq_save(flags);
++
++ ASSERT(urb_priv);
++ ASSERT(urb_priv->first_sb);
++ epid = urb_priv->epid;
++
++ if(activeUrbList[epid] == NULL) {
++ /* EP is idle, so make this URB active */
++ activeUrbList[epid] = urb;
++ urb_list_del(urb, epid);
++ ASSERT(TxIsocEPList[epid].sub == 0);
++ ASSERT(!(TxIsocEPList[epid].command &
++ IO_STATE(USB_EP_command, enable, yes)));
++
++ /* Differentiate between In and Out Isoc. Because In SBs are not consumed*/
++ if(usb_pipein(urb->pipe)) {
++ /* Each EP for In Isoc will have only one SB descriptor, setup when
++ submitting the first active urb. We do it here by copying from URBs
++ pre-allocated SB. */
++ memcpy((void *)&(TxIsocSBList[epid]), urb_priv->first_sb,
++ sizeof(TxIsocSBList[epid]));
++ TxIsocEPList[epid].hw_len = 0;
++ TxIsocEPList[epid].sub = virt_to_phys(&(TxIsocSBList[epid]));
++ } else {
++ /* For Out Isoc we attach the pre-allocated list of SBs for the URB */
++ TxIsocEPList[epid].hw_len = 0;
++ TxIsocEPList[epid].sub = virt_to_phys(urb_priv->first_sb);
++
++ isoc_dbg("Attached first URB:0x%x[%d] to epid:%d first_sb:0x%x"
++ " last_sb::0x%x\n",
++ (unsigned int)urb, urb_priv->urb_num, epid,
++ (unsigned int)(urb_priv->first_sb),
++ (unsigned int)(urb_priv->last_sb));
++ }
++
++ if (urb->transfer_flags & URB_ISO_ASAP) {
++ /* The isoc transfer should be started as soon as possible. The
++ start_frame field is a return value if URB_ISO_ASAP was set. Comparing
++ R_USB_FM_NUMBER with a USB Chief trace shows that the first isoc IN
++ token is sent 2 frames later. I'm not sure how this affects usage of
++ the start_frame field by the device driver, or how it affects things
++ when USB_ISO_ASAP is not set, so therefore there's no compensation for
++ the 2 frame "lag" here. */
++ urb->start_frame = (*R_USB_FM_NUMBER & 0x7ff);
++ TxIsocEPList[epid].command |= IO_STATE(USB_EP_command, enable, yes);
++ urb_priv->urb_state = STARTED;
++ isoc_dbg("URB_ISO_ASAP set, urb->start_frame set to %d\n",
++ urb->start_frame);
++ } else {
++ /* Not started yet. */
++ urb_priv->urb_state = NOT_STARTED;
++ isoc_warn("urb_priv->urb_state set to NOT_STARTED for URB:0x%x\n",
++ (unsigned int)urb);
++ }
++
++ } else {
++ /* An URB is already active on the EP. Leave URB in queue and let
++ finish_isoc_urb process it after current active URB */
++ ASSERT(TxIsocEPList[epid].sub != 0);
++
++ if(usb_pipein(urb->pipe)) {
++ /* Because there already is a active In URB on this epid we do nothing
++ and the finish_isoc_urb() function will handle switching to next URB*/
++
++ } else { /* For Out Isoc, insert new URBs traffic last in SB-list. */
++ struct USB_SB_Desc *temp_sb_desc;
++
++ /* Set state STARTED to all Out Isoc URBs added to SB list because we
++ don't know how many of them that are finished before descr interrupt*/
++ urb_priv->urb_state = STARTED;
++
++ /* Find end of current SB list by looking for SB with eol flag sat */
++ temp_sb_desc = phys_to_virt(TxIsocEPList[epid].sub);
++ while ((temp_sb_desc->command & IO_MASK(USB_SB_command, eol)) !=
++ IO_STATE(USB_SB_command, eol, yes)) {
++ ASSERT(temp_sb_desc->next);
++ temp_sb_desc = phys_to_virt(temp_sb_desc->next);
++ }
++
++ isoc_dbg("Appended URB:0x%x[%d] (first:0x%x last:0x%x) to epid:%d"
++ " sub:0x%x eol:0x%x\n",
++ (unsigned int)urb, urb_priv->urb_num,
++ (unsigned int)(urb_priv->first_sb),
++ (unsigned int)(urb_priv->last_sb), epid,
++ (unsigned int)phys_to_virt(TxIsocEPList[epid].sub),
++ (unsigned int)temp_sb_desc);
++
++ /* Next pointer must be set before eol is removed. */
++ temp_sb_desc->next = virt_to_phys(urb_priv->first_sb);
++ /* Clear the previous end of list flag since there is a new in the
++ added SB descriptor list. */
++ temp_sb_desc->command &= ~IO_MASK(USB_SB_command, eol);
++
++ if (!(TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable))) {
++ __u32 epid_data;
++ /* 8.8.5 in Designer's Reference says we should check for and correct
++ any errors in the EP here. That should not be necessary if
++ epid_attn is handled correctly, so we assume all is ok. */
++ epid_data = etrax_epid_iso_get(epid);
++ if (IO_EXTRACT(R_USB_EPT_DATA, error_code, epid_data) !=
++ IO_STATE_VALUE(R_USB_EPT_DATA, error_code, no_error)) {
++ isoc_err("Disabled Isoc EP with error:%d on epid:%d when appending"
++ " URB:0x%x[%d]\n",
++ IO_EXTRACT(R_USB_EPT_DATA, error_code, epid_data), epid,
++ (unsigned int)urb, urb_priv->urb_num);
++ }
++
++ /* The SB list was exhausted. */
++ if (virt_to_phys(urb_priv->last_sb) != TxIsocEPList[epid].sub) {
++ /* The new sublist did not get processed before the EP was
++ disabled. Setup the EP again. */
++
++ if(virt_to_phys(temp_sb_desc) == TxIsocEPList[epid].sub) {
++ isoc_dbg("EP for epid:%d stoped at SB:0x%x before newly inserted"
++ ", restarting from this URBs SB:0x%x\n",
++ epid, (unsigned int)temp_sb_desc,
++ (unsigned int)(urb_priv->first_sb));
++ TxIsocEPList[epid].hw_len = 0;
++ TxIsocEPList[epid].sub = virt_to_phys(urb_priv->first_sb);
++ urb->start_frame = (*R_USB_FM_NUMBER & 0x7ff);
++ /* Enable the EP again so data gets processed this time */
++ TxIsocEPList[epid].command |=
++ IO_STATE(USB_EP_command, enable, yes);
++
++ } else {
++ /* The EP has been disabled but not at end this URB (god knows
++ where). This should generate an epid_attn so we should not be
++ here */
++ isoc_warn("EP was disabled on sb:0x%x before SB list for"
++ " URB:0x%x[%d] got processed\n",
++ (unsigned int)phys_to_virt(TxIsocEPList[epid].sub),
++ (unsigned int)urb, urb_priv->urb_num);
++ }
++ } else {
++ /* This might happend if we are slow on this function and isn't
++ an error. */
++ isoc_dbg("EP was disabled and finished with SBs from appended"
++ " URB:0x%x[%d]\n", (unsigned int)urb, urb_priv->urb_num);
++ }
++ }
++ }
++ }
++
++ /* Start the DMA sub channel */
++ *R_DMA_CH8_SUB3_CMD = IO_STATE(R_DMA_CH8_SUB3_CMD, cmd, start);
++
++ local_irq_restore(flags);
++}
++
++static void tc_dma_unlink_intr_urb(struct urb *urb) {
++ struct crisv10_urb_priv *urb_priv = urb->hcpriv;
++ volatile struct USB_EP_Desc *first_ep; /* First EP in the list. */
++ volatile struct USB_EP_Desc *curr_ep; /* Current EP, the iterator. */
++ volatile struct USB_EP_Desc *next_ep; /* The EP after current. */
++ volatile struct USB_EP_Desc *unlink_ep; /* The one we should remove from
++ the list. */
++ int count = 0;
++ volatile int timeout = 10000;
++ int epid;
++
++ /* Read 8.8.4 in Designer's Reference, "Removing an EP Descriptor from the
++ List". */
++ ASSERT(urb_priv);
++ ASSERT(urb_priv->intr_ep_pool_length > 0);
++ epid = urb_priv->epid;
++
++ /* First disable all Intr EPs belonging to epid for this URB */
++ first_ep = &TxIntrEPList[0];
++ curr_ep = first_ep;
++ do {
++ next_ep = (struct USB_EP_Desc *)phys_to_virt(curr_ep->next);
++ if (IO_EXTRACT(USB_EP_command, epid, next_ep->command) == epid) {
++ /* Disable EP */
++ next_ep->command &= ~IO_MASK(USB_EP_command, enable);
++ }
++ curr_ep = phys_to_virt(curr_ep->next);
++ } while (curr_ep != first_ep);
++
++
++ /* Now unlink all EPs belonging to this epid from Descr list */
++ first_ep = &TxIntrEPList[0];
++ curr_ep = first_ep;
++ do {
++ next_ep = (struct USB_EP_Desc *)phys_to_virt(curr_ep->next);
++ if (IO_EXTRACT(USB_EP_command, epid, next_ep->command) == epid) {
++ /* This is the one we should unlink. */
++ unlink_ep = next_ep;
++
++ /* Actually unlink the EP from the DMA list. */
++ curr_ep->next = unlink_ep->next;
++
++ /* Wait until the DMA is no longer at this descriptor. */
++ while((*R_DMA_CH8_SUB2_EP == virt_to_phys(unlink_ep)) &&
++ (timeout-- > 0));
++ if(timeout == 0) {
++ warn("Timeout while waiting for DMA-TX-Intr to leave unlink EP\n");
++ }
++
++ count++;
++ }
++ curr_ep = phys_to_virt(curr_ep->next);
++ } while (curr_ep != first_ep);
++
++ if(count != urb_priv->intr_ep_pool_length) {
++ intr_warn("Unlinked %d of %d Intr EPs for URB:0x%x[%d]\n", count,
++ urb_priv->intr_ep_pool_length, (unsigned int)urb,
++ urb_priv->urb_num);
++ } else {
++ intr_dbg("Unlinked %d of %d interrupt EPs for URB:0x%x\n", count,
++ urb_priv->intr_ep_pool_length, (unsigned int)urb);
++ }
++}
++
++static void check_finished_bulk_tx_epids(struct usb_hcd *hcd,
++ int timer) {
++ unsigned long flags;
++ int epid;
++ struct urb *urb;
++ struct crisv10_urb_priv * urb_priv;
++ __u32 epid_data;
++
++ /* Protect TxEPList */
++ local_irq_save(flags);
++
++ for (epid = 0; epid < NBR_OF_EPIDS; epid++) {
++ /* A finished EP descriptor is disabled and has a valid sub pointer */
++ if (!(TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)) &&
++ (TxBulkEPList[epid].sub != 0)) {
++
++ /* Get the active URB for this epid */
++ urb = activeUrbList[epid];
++ /* Sanity checks */
++ ASSERT(urb);
++ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ ASSERT(urb_priv);
++
++ /* Only handle finished out Bulk EPs here,
++ and let RX interrupt take care of the rest */
++ if(!epid_out_traffic(epid)) {
++ continue;
++ }
++
++ if(timer) {
++ tc_warn("Found finished %s Bulk epid:%d URB:0x%x[%d] from timeout\n",
++ epid_out_traffic(epid) ? "Out" : "In", epid, (unsigned int)urb,
++ urb_priv->urb_num);
++ } else {
++ tc_dbg("Found finished %s Bulk epid:%d URB:0x%x[%d] from interrupt\n",
++ epid_out_traffic(epid) ? "Out" : "In", epid, (unsigned int)urb,
++ urb_priv->urb_num);
++ }
++
++ if(urb_priv->urb_state == UNLINK) {
++ /* This Bulk URB is requested to be unlinked, that means that the EP
++ has been disabled and we might not have sent all data */
++ tc_finish_urb(hcd, urb, urb->status);
++ continue;
++ }
++
++ ASSERT(urb_priv->urb_state == STARTED);
++ if (phys_to_virt(TxBulkEPList[epid].sub) != urb_priv->last_sb) {
++ tc_err("Endpoint got disabled before reaching last sb\n");
++ }
++
++ epid_data = etrax_epid_get(epid);
++ if (IO_EXTRACT(R_USB_EPT_DATA, error_code, epid_data) ==
++ IO_STATE_VALUE(R_USB_EPT_DATA, error_code, no_error)) {
++ /* This means that the endpoint has no error, is disabled
++ and had inserted traffic, i.e. transfer successfully completed. */
++ tc_finish_urb(hcd, urb, 0);
++ } else {
++ /* Shouldn't happen. We expect errors to be caught by epid
++ attention. */
++ tc_err("Found disabled bulk EP desc (epid:%d error:%d)\n",
++ epid, IO_EXTRACT(R_USB_EPT_DATA, error_code, epid_data));
++ }
++ } else {
++ tc_dbg("Ignoring In Bulk epid:%d, let RX interrupt handle it\n", epid);
++ }
++ }
++
++ local_irq_restore(flags);
++}
++
++static void check_finished_ctrl_tx_epids(struct usb_hcd *hcd) {
++ unsigned long flags;
++ int epid;
++ struct urb *urb;
++ struct crisv10_urb_priv * urb_priv;
++ __u32 epid_data;
++
++ /* Protect TxEPList */
++ local_irq_save(flags);
++
++ for (epid = 0; epid < NBR_OF_EPIDS; epid++) {
++ if(epid == DUMMY_EPID)
++ continue;
++
++ /* A finished EP descriptor is disabled and has a valid sub pointer */
++ if (!(TxCtrlEPList[epid].command & IO_MASK(USB_EP_command, enable)) &&
++ (TxCtrlEPList[epid].sub != 0)) {
++
++ /* Get the active URB for this epid */
++ urb = activeUrbList[epid];
++
++ if(urb == NULL) {
++ tc_warn("Found finished Ctrl epid:%d with no active URB\n", epid);
++ continue;
++ }
++
++ /* Sanity checks */
++ ASSERT(usb_pipein(urb->pipe));
++ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ ASSERT(urb_priv);
++ if (phys_to_virt(TxCtrlEPList[epid].sub) != urb_priv->last_sb) {
++ tc_err("Endpoint got disabled before reaching last sb\n");
++ }
++
++ epid_data = etrax_epid_get(epid);
++ if (IO_EXTRACT(R_USB_EPT_DATA, error_code, epid_data) ==
++ IO_STATE_VALUE(R_USB_EPT_DATA, error_code, no_error)) {
++ /* This means that the endpoint has no error, is disabled
++ and had inserted traffic, i.e. transfer successfully completed. */
++
++ /* Check if RX-interrupt for In Ctrl has been processed before
++ finishing the URB */
++ if(urb_priv->ctrl_rx_done) {
++ tc_dbg("Finishing In Ctrl URB:0x%x[%d] in tx_interrupt\n",
++ (unsigned int)urb, urb_priv->urb_num);
++ tc_finish_urb(hcd, urb, 0);
++ } else {
++ /* If we get zout descriptor interrupt before RX was done for a
++ In Ctrl transfer, then we flag that and it will be finished
++ in the RX-Interrupt */
++ urb_priv->ctrl_zout_done = 1;
++ tc_dbg("Got zout descr interrupt before RX interrupt\n");
++ }
++ } else {
++ /* Shouldn't happen. We expect errors to be caught by epid
++ attention. */
++ tc_err("Found disabled Ctrl EP desc (epid:%d URB:0x%x[%d]) error_code:%d\n", epid, (unsigned int)urb, urb_priv->urb_num, IO_EXTRACT(R_USB_EPT_DATA, error_code, epid_data));
++ __dump_ep_desc(&(TxCtrlEPList[epid]));
++ __dump_ept_data(epid);
++ }
++ }
++ }
++ local_irq_restore(flags);
++}
++
++/* This function goes through all epids that are setup for Out Isoc transfers
++ and marks (isoc_out_done) all queued URBs that the DMA has finished
++ transfer for.
++ No URB completetion is done here to make interrupt routine return quickly.
++ URBs are completed later with help of complete_isoc_bottom_half() that
++ becomes schedules when this functions is finished. */
++static void check_finished_isoc_tx_epids(void) {
++ unsigned long flags;
++ int epid;
++ struct urb *urb;
++ struct crisv10_urb_priv * urb_priv;
++ struct USB_SB_Desc* sb_desc;
++ int epid_done;
++
++ /* Protect TxIsocEPList */
++ local_irq_save(flags);
++
++ for (epid = 0; epid < NBR_OF_EPIDS; epid++) {
++ if (TxIsocEPList[epid].sub == 0 || epid == INVALID_EPID ||
++ !epid_out_traffic(epid)) {
++ /* Nothing here to see. */
++ continue;
++ }
++ ASSERT(epid_inuse(epid));
++ ASSERT(epid_isoc(epid));
++
++ sb_desc = phys_to_virt(TxIsocEPList[epid].sub);
++ /* Find the last descriptor of the currently active URB for this ep.
++ This is the first descriptor in the sub list marked for a descriptor
++ interrupt. */
++ while (sb_desc && !IO_EXTRACT(USB_SB_command, intr, sb_desc->command)) {
++ sb_desc = sb_desc->next ? phys_to_virt(sb_desc->next) : 0;
++ }
++ ASSERT(sb_desc);
++
++ isoc_dbg("Descr IRQ checking epid:%d sub:0x%x intr:0x%x\n",
++ epid, (unsigned int)phys_to_virt(TxIsocEPList[epid].sub),
++ (unsigned int)sb_desc);
++
++ urb = activeUrbList[epid];
++ if(urb == NULL) {
++ isoc_err("Isoc Descr irq on epid:%d with no active URB\n", epid);
++ continue;
++ }
++
++ epid_done = 0;
++ while(urb && !epid_done) {
++ /* Sanity check. */
++ ASSERT(usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS);
++ ASSERT(usb_pipeout(urb->pipe));
++
++ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ ASSERT(urb_priv);
++ ASSERT(urb_priv->urb_state == STARTED ||
++ urb_priv->urb_state == UNLINK);
++
++ if (sb_desc != urb_priv->last_sb) {
++ /* This urb has been sent. */
++ urb_priv->isoc_out_done = 1;
++
++ } else { /* Found URB that has last_sb as the interrupt reason */
++
++ /* Check if EP has been disabled, meaning that all transfers are done*/
++ if(!(TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable))) {
++ ASSERT((sb_desc->command & IO_MASK(USB_SB_command, eol)) ==
++ IO_STATE(USB_SB_command, eol, yes));
++ ASSERT(sb_desc->next == 0);
++ urb_priv->isoc_out_done = 1;
++ } else {
++ isoc_dbg("Skipping URB:0x%x[%d] because EP not disabled yet\n",
++ (unsigned int)urb, urb_priv->urb_num);
++ }
++ /* Stop looking any further in queue */
++ epid_done = 1;
++ }
++
++ if (!epid_done) {
++ if(urb == activeUrbList[epid]) {
++ urb = urb_list_first(epid);
++ } else {
++ urb = urb_list_next(urb, epid);
++ }
++ }
++ } /* END: while(urb && !epid_done) */
++ }
++
++ local_irq_restore(flags);
++}
++
++
++/* This is where the Out Isoc URBs are realy completed. This function is
++ scheduled from tc_dma_tx_interrupt() when one or more Out Isoc transfers
++ are done. This functions completes all URBs earlier marked with
++ isoc_out_done by fast interrupt routine check_finished_isoc_tx_epids() */
++
++static void complete_isoc_bottom_half(void *data) {
++ struct crisv10_isoc_complete_data *comp_data;
++ struct usb_iso_packet_descriptor *packet;
++ struct crisv10_urb_priv * urb_priv;
++ unsigned long flags;
++ struct urb* urb;
++ int epid_done;
++ int epid;
++ int i;
++
++ comp_data = (struct crisv10_isoc_complete_data*)data;
++
++ local_irq_save(flags);
++
++ for (epid = 0; epid < NBR_OF_EPIDS - 1; epid++) {
++ if(!epid_inuse(epid) || !epid_isoc(epid) || !epid_out_traffic(epid) || epid == DUMMY_EPID) {
++ /* Only check valid Out Isoc epids */
++ continue;
++ }
++
++ isoc_dbg("Isoc bottom-half checking epid:%d, sub:0x%x\n", epid,
++ (unsigned int)phys_to_virt(TxIsocEPList[epid].sub));
++
++ /* The descriptor interrupt handler has marked all transmitted Out Isoc
++ URBs with isoc_out_done. Now we traverse all epids and for all that
++ have out Isoc traffic we traverse its URB list and complete the
++ transmitted URBs. */
++ epid_done = 0;
++ while (!epid_done) {
++
++ /* Get the active urb (if any) */
++ urb = activeUrbList[epid];
++ if (urb == 0) {
++ isoc_dbg("No active URB on epid:%d anymore\n", epid);
++ epid_done = 1;
++ continue;
++ }
++
++ /* Sanity check. */
++ ASSERT(usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS);
++ ASSERT(usb_pipeout(urb->pipe));
++
++ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ ASSERT(urb_priv);
++
++ if (!(urb_priv->isoc_out_done)) {
++ /* We have reached URB that isn't flaged done yet, stop traversing. */
++ isoc_dbg("Stoped traversing Out Isoc URBs on epid:%d"
++ " before not yet flaged URB:0x%x[%d]\n",
++ epid, (unsigned int)urb, urb_priv->urb_num);
++ epid_done = 1;
++ continue;
++ }
++
++ /* This urb has been sent. */
++ isoc_dbg("Found URB:0x%x[%d] that is flaged isoc_out_done\n",
++ (unsigned int)urb, urb_priv->urb_num);
++
++ /* Set ok on transfered packets for this URB and finish it */
++ for (i = 0; i < urb->number_of_packets; i++) {
++ packet = &urb->iso_frame_desc[i];
++ packet->status = 0;
++ packet->actual_length = packet->length;
++ }
++ urb_priv->isoc_packet_counter = urb->number_of_packets;
++ tc_finish_urb(comp_data->hcd, urb, 0);
++
++ } /* END: while(!epid_done) */
++ } /* END: for(epid...) */
++
++ local_irq_restore(flags);
++ kmem_cache_free(isoc_compl_cache, comp_data);
++}
++
++
++static void check_finished_intr_tx_epids(struct usb_hcd *hcd) {
++ unsigned long flags;
++ int epid;
++ struct urb *urb;
++ struct crisv10_urb_priv * urb_priv;
++ volatile struct USB_EP_Desc *curr_ep; /* Current EP, the iterator. */
++ volatile struct USB_EP_Desc *next_ep; /* The EP after current. */
++
++ /* Protect TxintrEPList */
++ local_irq_save(flags);
++
++ for (epid = 0; epid < NBR_OF_EPIDS; epid++) {
++ if(!epid_inuse(epid) || !epid_intr(epid) || !epid_out_traffic(epid)) {
++ /* Nothing to see on this epid. Only check valid Out Intr epids */
++ continue;
++ }
++
++ urb = activeUrbList[epid];
++ if(urb == 0) {
++ intr_warn("Found Out Intr epid:%d with no active URB\n", epid);
++ continue;
++ }
++
++ /* Sanity check. */
++ ASSERT(usb_pipetype(urb->pipe) == PIPE_INTERRUPT);
++ ASSERT(usb_pipeout(urb->pipe));
++
++ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ ASSERT(urb_priv);
++
++ /* Go through EPs between first and second sof-EP. It's here Out Intr EPs
++ are inserted.*/
++ curr_ep = &TxIntrEPList[0];
++ do {
++ next_ep = (struct USB_EP_Desc *)phys_to_virt(curr_ep->next);
++ if(next_ep == urb_priv->intr_ep_pool[0]) {
++ /* We found the Out Intr EP for this epid */
++
++ /* Disable it so it doesn't get processed again */
++ next_ep->command &= ~IO_MASK(USB_EP_command, enable);
++
++ /* Finish the active Out Intr URB with status OK */
++ tc_finish_urb(hcd, urb, 0);
++ }
++ curr_ep = phys_to_virt(curr_ep->next);
++ } while (curr_ep != &TxIntrEPList[1]);
++
++ }
++ local_irq_restore(flags);
++}
++
++/* Interrupt handler for DMA8/IRQ24 with subchannels (called from hardware intr) */
++static irqreturn_t tc_dma_tx_interrupt(int irq, void *vhc) {
++ struct usb_hcd *hcd = (struct usb_hcd*)vhc;
++ ASSERT(hcd);
++
++ if (*R_IRQ_READ2 & IO_MASK(R_IRQ_READ2, dma8_sub0_descr)) {
++ /* Clear this interrupt */
++ *R_DMA_CH8_SUB0_CLR_INTR = IO_STATE(R_DMA_CH8_SUB0_CLR_INTR, clr_descr, do);
++ restart_dma8_sub0();
++ }
++
++ if (*R_IRQ_READ2 & IO_MASK(R_IRQ_READ2, dma8_sub1_descr)) {
++ /* Clear this interrupt */
++ *R_DMA_CH8_SUB1_CLR_INTR = IO_STATE(R_DMA_CH8_SUB1_CLR_INTR, clr_descr, do);
++ check_finished_ctrl_tx_epids(hcd);
++ }
++
++ if (*R_IRQ_READ2 & IO_MASK(R_IRQ_READ2, dma8_sub2_descr)) {
++ /* Clear this interrupt */
++ *R_DMA_CH8_SUB2_CLR_INTR = IO_STATE(R_DMA_CH8_SUB2_CLR_INTR, clr_descr, do);
++ check_finished_intr_tx_epids(hcd);
++ }
++
++ if (*R_IRQ_READ2 & IO_MASK(R_IRQ_READ2, dma8_sub3_descr)) {
++ struct crisv10_isoc_complete_data* comp_data;
++
++ /* Flag done Out Isoc for later completion */
++ check_finished_isoc_tx_epids();
++
++ /* Clear this interrupt */
++ *R_DMA_CH8_SUB3_CLR_INTR = IO_STATE(R_DMA_CH8_SUB3_CLR_INTR, clr_descr, do);
++ /* Schedule bottom half of Out Isoc completion function. This function
++ finishes the URBs marked with isoc_out_done */
++ comp_data = (struct crisv10_isoc_complete_data*)
++ kmem_cache_alloc(isoc_compl_cache, SLAB_ATOMIC);
++ ASSERT(comp_data != NULL);
++ comp_data ->hcd = hcd;
++
++ INIT_WORK(&comp_data->usb_bh, complete_isoc_bottom_half, comp_data);
++ schedule_work(&comp_data->usb_bh);
++ }
++
++ return IRQ_HANDLED;
++}
++
++/* Interrupt handler for DMA9/IRQ25 (called from hardware intr) */
++static irqreturn_t tc_dma_rx_interrupt(int irq, void *vhc) {
++ unsigned long flags;
++ struct urb *urb;
++ struct usb_hcd *hcd = (struct usb_hcd*)vhc;
++ struct crisv10_urb_priv *urb_priv;
++ int epid = 0;
++ int real_error;
++
++ ASSERT(hcd);
++
++ /* Clear this interrupt. */
++ *R_DMA_CH9_CLR_INTR = IO_STATE(R_DMA_CH9_CLR_INTR, clr_eop, do);
++
++ /* Custom clear interrupt for this interrupt */
++ /* The reason we cli here is that we call the driver's callback functions. */
++ local_irq_save(flags);
++
++ /* Note that this while loop assumes that all packets span only
++ one rx descriptor. */
++ while(myNextRxDesc->status & IO_MASK(USB_IN_status, eop)) {
++ epid = IO_EXTRACT(USB_IN_status, epid, myNextRxDesc->status);
++ /* Get the active URB for this epid */
++ urb = activeUrbList[epid];
++
++ ASSERT(epid_inuse(epid));
++ if (!urb) {
++ dma_err("No urb for epid %d in rx interrupt\n", epid);
++ goto skip_out;
++ }
++
++ /* Check if any errors on epid */
++ real_error = 0;
++ if (myNextRxDesc->status & IO_MASK(USB_IN_status, error)) {
++ __u32 r_usb_ept_data;
++
++ if (usb_pipeisoc(urb->pipe)) {
++ r_usb_ept_data = etrax_epid_iso_get(epid);
++ if((r_usb_ept_data & IO_MASK(R_USB_EPT_DATA_ISO, valid)) &&
++ (IO_EXTRACT(R_USB_EPT_DATA_ISO, error_code, r_usb_ept_data) == 0) &&
++ (myNextRxDesc->status & IO_MASK(USB_IN_status, nodata))) {
++ /* Not an error, just a failure to receive an expected iso
++ in packet in this frame. This is not documented
++ in the designers reference. Continue processing.
++ */
++ } else real_error = 1;
++ } else real_error = 1;
++ }
++
++ if(real_error) {
++ dma_err("Error in RX descr on epid:%d for URB 0x%x",
++ epid, (unsigned int)urb);
++ dump_ept_data(epid);
++ dump_in_desc(myNextRxDesc);
++ goto skip_out;
++ }
++
++ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv;
++ ASSERT(urb_priv);
++ ASSERT(urb_priv->urb_state == STARTED ||
++ urb_priv->urb_state == UNLINK);
++
++ if ((usb_pipetype(urb->pipe) == PIPE_BULK) ||
++ (usb_pipetype(urb->pipe) == PIPE_CONTROL) ||
++ (usb_pipetype(urb->pipe) == PIPE_INTERRUPT)) {
++
++ /* We get nodata for empty data transactions, and the rx descriptor's
++ hw_len field is not valid in that case. No data to copy in other
++ words. */
++ if (myNextRxDesc->status & IO_MASK(USB_IN_status, nodata)) {
++ /* No data to copy */
++ } else {
++ /*
++ dma_dbg("Processing RX for URB:0x%x epid:%d (data:%d ofs:%d)\n",
++ (unsigned int)urb, epid, myNextRxDesc->hw_len,
++ urb_priv->rx_offset);
++ */
++ /* Only copy data if URB isn't flaged to be unlinked*/
++ if(urb_priv->urb_state != UNLINK) {
++ /* Make sure the data fits in the buffer. */
++ if(urb_priv->rx_offset + myNextRxDesc->hw_len
++ <= urb->transfer_buffer_length) {
++
++ /* Copy the data to URBs buffer */
++ memcpy(urb->transfer_buffer + urb_priv->rx_offset,
++ phys_to_virt(myNextRxDesc->buf), myNextRxDesc->hw_len);
++ urb_priv->rx_offset += myNextRxDesc->hw_len;
++ } else {
++ /* Signal overflow when returning URB */
++ urb->status = -EOVERFLOW;
++ tc_finish_urb_later(hcd, urb, urb->status);
++ }
++ }
++ }
++
++ /* Check if it was the last packet in the transfer */
++ if (myNextRxDesc->status & IO_MASK(USB_IN_status, eot)) {
++ /* Special handling for In Ctrl URBs. */
++ if(usb_pipecontrol(urb->pipe) && usb_pipein(urb->pipe) &&
++ !(urb_priv->ctrl_zout_done)) {
++ /* Flag that RX part of Ctrl transfer is done. Because zout descr
++ interrupt hasn't happend yet will the URB be finished in the
++ TX-Interrupt. */
++ urb_priv->ctrl_rx_done = 1;
++ tc_dbg("Not finishing In Ctrl URB:0x%x from rx_interrupt, waiting"
++ " for zout\n", (unsigned int)urb);
++ } else {
++ tc_finish_urb(hcd, urb, 0);
++ }
++ }
++ } else { /* ISOC RX */
++ /*
++ isoc_dbg("Processing RX for epid:%d (URB:0x%x) ISOC pipe\n",
++ epid, (unsigned int)urb);
++ */
++
++ struct usb_iso_packet_descriptor *packet;
++
++ if (urb_priv->urb_state == UNLINK) {
++ isoc_warn("Ignoring Isoc Rx data for urb being unlinked.\n");
++ goto skip_out;
++ } else if (urb_priv->urb_state == NOT_STARTED) {
++ isoc_err("What? Got Rx data for Isoc urb that isn't started?\n");
++ goto skip_out;
++ }
++
++ packet = &urb->iso_frame_desc[urb_priv->isoc_packet_counter];
++ ASSERT(packet);
++ packet->status = 0;
++
++ if (myNextRxDesc->status & IO_MASK(USB_IN_status, nodata)) {
++ /* We get nodata for empty data transactions, and the rx descriptor's
++ hw_len field is not valid in that case. We copy 0 bytes however to
++ stay in synch. */
++ packet->actual_length = 0;
++ } else {
++ packet->actual_length = myNextRxDesc->hw_len;
++ /* Make sure the data fits in the buffer. */
++ ASSERT(packet->actual_length <= packet->length);
++ memcpy(urb->transfer_buffer + packet->offset,
++ phys_to_virt(myNextRxDesc->buf), packet->actual_length);
++ if(packet->actual_length > 0)
++ isoc_dbg("Copied %d bytes, packet %d for URB:0x%x[%d]\n",
++ packet->actual_length, urb_priv->isoc_packet_counter,
++ (unsigned int)urb, urb_priv->urb_num);
++ }
++
++ /* Increment the packet counter. */
++ urb_priv->isoc_packet_counter++;
++
++ /* Note that we don't care about the eot field in the rx descriptor's
++ status. It will always be set for isoc traffic. */
++ if (urb->number_of_packets == urb_priv->isoc_packet_counter) {
++ /* Complete the urb with status OK. */
++ tc_finish_urb(hcd, urb, 0);
++ }
++ }
++
++ skip_out:
++ myNextRxDesc->status = 0;
++ myNextRxDesc->command |= IO_MASK(USB_IN_command, eol);
++ myLastRxDesc->command &= ~IO_MASK(USB_IN_command, eol);
++ myLastRxDesc = myNextRxDesc;
++ myNextRxDesc = phys_to_virt(myNextRxDesc->next);
++ flush_etrax_cache();
++ *R_DMA_CH9_CMD = IO_STATE(R_DMA_CH9_CMD, cmd, restart);
++ }
++
++ local_irq_restore(flags);
++
++ return IRQ_HANDLED;
++}
++
++static void tc_bulk_start_timer_func(unsigned long dummy) {
++ /* We might enable an EP descriptor behind the current DMA position when
++ it's about to decide that there are no more bulk traffic and it should
++ stop the bulk channel.
++ Therefore we periodically check if the bulk channel is stopped and there
++ is an enabled bulk EP descriptor, in which case we start the bulk
++ channel. */
++
++ if (!(*R_DMA_CH8_SUB0_CMD & IO_MASK(R_DMA_CH8_SUB0_CMD, cmd))) {
++ int epid;
++
++ timer_dbg("bulk_start_timer: Bulk DMA channel not running.\n");
++
++ for (epid = 0; epid < NBR_OF_EPIDS; epid++) {
++ if (TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)) {
++ timer_warn("Found enabled EP for epid %d, starting bulk channel.\n",
++ epid);
++ restart_dma8_sub0();
++
++ /* Restart the bulk eot timer since we just started the bulk channel.*/
++ mod_timer(&bulk_eot_timer, jiffies + BULK_EOT_TIMER_INTERVAL);
++
++ /* No need to search any further. */
++ break;
++ }
++ }
++ } else {
++ timer_dbg("bulk_start_timer: Bulk DMA channel running.\n");
++ }
++}
++
++static void tc_bulk_eot_timer_func(unsigned long dummy) {
++ struct usb_hcd *hcd = (struct usb_hcd*)dummy;
++ ASSERT(hcd);
++ /* Because of a race condition in the top half, we might miss a bulk eot.
++ This timer "simulates" a bulk eot if we don't get one for a while,
++ hopefully correcting the situation. */
++ timer_dbg("bulk_eot_timer timed out.\n");
++ check_finished_bulk_tx_epids(hcd, 1);
++}
++
++
++/*************************************************************/
++/*************************************************************/
++/* Device driver block */
++/*************************************************************/
++/*************************************************************/
++
++/* Forward declarations for device driver functions */
++static int devdrv_hcd_probe(struct device *);
++static int devdrv_hcd_remove(struct device *);
++#ifdef CONFIG_PM
++static int devdrv_hcd_suspend(struct device *, u32, u32);
++static int devdrv_hcd_resume(struct device *, u32);
++#endif /* CONFIG_PM */
++
++/* the device */
++static struct platform_device *devdrv_hc_platform_device;
++
++/* device driver interface */
++static struct device_driver devdrv_hc_device_driver = {
++ .name = (char *) hc_name,
++ .bus = &platform_bus_type,
++
++ .probe = devdrv_hcd_probe,
++ .remove = devdrv_hcd_remove,
++
++#ifdef CONFIG_PM
++ .suspend = devdrv_hcd_suspend,
++ .resume = devdrv_hcd_resume,
++#endif /* CONFIG_PM */
++};
++
++/* initialize the host controller and driver */
++static int __init_or_module devdrv_hcd_probe(struct device *dev)
++{
++ struct usb_hcd *hcd;
++ struct crisv10_hcd *crisv10_hcd;
++ int retval;
++
++ /* Check DMA burst length */
++ if(IO_EXTRACT(R_BUS_CONFIG, dma_burst, *R_BUS_CONFIG) !=
++ IO_STATE(R_BUS_CONFIG, dma_burst, burst32)) {
++ devdrv_err("Invalid DMA burst length in Etrax 100LX,"
++ " needs to be 32\n");
++ return -EPERM;
++ }
++
++ hcd = usb_create_hcd(&crisv10_hc_driver, dev, dev->bus_id);
++ if (!hcd)
++ return -ENOMEM;
++
++ crisv10_hcd = hcd_to_crisv10_hcd(hcd);
++ spin_lock_init(&crisv10_hcd->lock);
++ crisv10_hcd->num_ports = num_ports();
++ crisv10_hcd->running = 0;
++
++ dev_set_drvdata(dev, crisv10_hcd);
++
++ devdrv_dbg("ETRAX USB IRQs HC:%d RX:%d TX:%d\n", ETRAX_USB_HC_IRQ,
++ ETRAX_USB_RX_IRQ, ETRAX_USB_TX_IRQ);
++
++ /* Print out chip version read from registers */
++ int rev_maj = *R_USB_REVISION & IO_MASK(R_USB_REVISION, major);
++ int rev_min = *R_USB_REVISION & IO_MASK(R_USB_REVISION, minor);
++ if(rev_min == 0) {
++ devdrv_info("Etrax 100LX USB Revision %d v1,2\n", rev_maj);
++ } else {
++ devdrv_info("Etrax 100LX USB Revision %d v%d\n", rev_maj, rev_min);
++ }
++
++ devdrv_info("Bulk timer interval, start:%d eot:%d\n",
++ BULK_START_TIMER_INTERVAL,
++ BULK_EOT_TIMER_INTERVAL);
++
++
++ /* Init root hub data structures */
++ if(rh_init()) {
++ devdrv_err("Failed init data for Root Hub\n");
++ retval = -ENOMEM;
++ }
++
++ if(port_in_use(0)) {
++ if (cris_request_io_interface(if_usb_1, "ETRAX100LX USB-HCD")) {
++ printk(KERN_CRIT "usb-host: request IO interface usb1 failed");
++ retval = -EBUSY;
++ goto out;
++ }
++ devdrv_info("Claimed interface for USB physical port 1\n");
++ }
++ if(port_in_use(1)) {
++ if (cris_request_io_interface(if_usb_2, "ETRAX100LX USB-HCD")) {
++ /* Free first interface if second failed to be claimed */
++ if(port_in_use(0)) {
++ cris_free_io_interface(if_usb_1);
++ }
++ printk(KERN_CRIT "usb-host: request IO interface usb2 failed");
++ retval = -EBUSY;
++ goto out;
++ }
++ devdrv_info("Claimed interface for USB physical port 2\n");
++ }
++
++ /* Init transfer controller structs and locks */
++ if((retval = tc_init(hcd)) != 0) {
++ goto out;
++ }
++
++ /* Attach interrupt functions for DMA and init DMA controller */
++ if((retval = tc_dma_init(hcd)) != 0) {
++ goto out;
++ }
++
++ /* Attach the top IRQ handler for USB controller interrupts */
++ if (request_irq(ETRAX_USB_HC_IRQ, crisv10_hcd_top_irq, 0,
++ "ETRAX 100LX built-in USB (HC)", hcd)) {
++ err("Could not allocate IRQ %d for USB", ETRAX_USB_HC_IRQ);
++ retval = -EBUSY;
++ goto out;
++ }
++
++ /* iso_eof is only enabled when isoc traffic is running. */
++ *R_USB_IRQ_MASK_SET =
++ /* IO_STATE(R_USB_IRQ_MASK_SET, iso_eof, set) | */
++ IO_STATE(R_USB_IRQ_MASK_SET, bulk_eot, set) |
++ IO_STATE(R_USB_IRQ_MASK_SET, epid_attn, set) |
++ IO_STATE(R_USB_IRQ_MASK_SET, port_status, set) |
++ IO_STATE(R_USB_IRQ_MASK_SET, ctl_status, set);
++
++
++ crisv10_ready_wait();
++ /* Reset the USB interface. */
++ *R_USB_COMMAND =
++ IO_STATE(R_USB_COMMAND, port_sel, nop) |
++ IO_STATE(R_USB_COMMAND, port_cmd, reset) |
++ IO_STATE(R_USB_COMMAND, ctrl_cmd, reset);
++
++ /* Designer's Reference, p. 8 - 10 says we should Initate R_USB_FM_PSTART to
++ 0x2A30 (10800), to guarantee that control traffic gets 10% of the
++ bandwidth, and periodic transfer may allocate the rest (90%).
++ This doesn't work though.
++ The value 11960 is chosen to be just after the SOF token, with a couple
++ of bit times extra for possible bit stuffing. */
++ *R_USB_FM_PSTART = IO_FIELD(R_USB_FM_PSTART, value, 11960);
++
++ crisv10_ready_wait();
++ /* Configure the USB interface as a host controller. */
++ *R_USB_COMMAND =
++ IO_STATE(R_USB_COMMAND, port_sel, nop) |
++ IO_STATE(R_USB_COMMAND, port_cmd, reset) |
++ IO_STATE(R_USB_COMMAND, ctrl_cmd, host_config);
++
++
++ /* Check so controller not busy before enabling ports */
++ crisv10_ready_wait();
++
++ /* Enable selected USB ports */
++ if(port_in_use(0)) {
++ *R_USB_PORT1_DISABLE = IO_STATE(R_USB_PORT1_DISABLE, disable, no);
++ } else {
++ *R_USB_PORT1_DISABLE = IO_STATE(R_USB_PORT1_DISABLE, disable, yes);
++ }
++ if(port_in_use(1)) {
++ *R_USB_PORT2_DISABLE = IO_STATE(R_USB_PORT2_DISABLE, disable, no);
++ } else {
++ *R_USB_PORT2_DISABLE = IO_STATE(R_USB_PORT2_DISABLE, disable, yes);
++ }
++
++ crisv10_ready_wait();
++ /* Start processing of USB traffic. */
++ *R_USB_COMMAND =
++ IO_STATE(R_USB_COMMAND, port_sel, nop) |
++ IO_STATE(R_USB_COMMAND, port_cmd, reset) |
++ IO_STATE(R_USB_COMMAND, ctrl_cmd, host_run);
++
++ /* Do not continue probing initialization before USB interface is done */
++ crisv10_ready_wait();
++
++ /* Register our Host Controller to USB Core
++ * Finish the remaining parts of generic HCD initialization: allocate the
++ * buffers of consistent memory, register the bus
++ * and call the driver's reset() and start() routines. */
++ retval = usb_add_hcd(hcd, ETRAX_USB_HC_IRQ, IRQF_DISABLED);
++ if (retval != 0) {
++ devdrv_err("Failed registering HCD driver\n");
++ goto out;
++ }
++
++ return 0;
++
++ out:
++ devdrv_hcd_remove(dev);
++ return retval;
++}
++
++
++/* cleanup after the host controller and driver */
++static int __init_or_module devdrv_hcd_remove(struct device *dev)
++{
++ struct crisv10_hcd *crisv10_hcd = dev_get_drvdata(dev);
++ struct usb_hcd *hcd;
++
++ if (!crisv10_hcd)
++ return 0;
++ hcd = crisv10_hcd_to_hcd(crisv10_hcd);
++
++
++ /* Stop USB Controller in Etrax 100LX */
++ crisv10_hcd_reset(hcd);
++
++ usb_remove_hcd(hcd);
++ devdrv_dbg("Removed HCD from USB Core\n");
++
++ /* Free USB Controller IRQ */
++ free_irq(ETRAX_USB_HC_IRQ, NULL);
++
++ /* Free resources */
++ tc_dma_destroy();
++ tc_destroy();
++
++
++ if(port_in_use(0)) {
++ cris_free_io_interface(if_usb_1);
++ }
++ if(port_in_use(1)) {
++ cris_free_io_interface(if_usb_2);
++ }
++
++ devdrv_dbg("Freed all claimed resources\n");
++
++ return 0;
++}
++
++
++#ifdef CONFIG_PM
++
++static int devdrv_hcd_suspend(struct usb_hcd *hcd, u32 state, u32 level)
++{
++ return 0; /* no-op for now */
++}
++
++static int devdrv_hcd_resume(struct usb_hcd *hcd, u32 level)
++{
++ return 0; /* no-op for now */
++}
++
++#endif /* CONFIG_PM */
++
++
++
++/*************************************************************/
++/*************************************************************/
++/* Module block */
++/*************************************************************/
++/*************************************************************/
++
++/* register driver */
++static int __init module_hcd_init(void)
++{
++
++ if (usb_disabled())
++ return -ENODEV;
++
++ /* Here we select enabled ports by following defines created from
++ menuconfig */
++#ifndef CONFIG_ETRAX_USB_HOST_PORT1
++ ports &= ~(1<<0);
++#endif
++#ifndef CONFIG_ETRAX_USB_HOST_PORT2
++ ports &= ~(1<<1);
++#endif
++
++ printk(KERN_INFO "%s version "VERSION" "COPYRIGHT"\n", product_desc);
++
++ devdrv_hc_platform_device =
++ platform_device_register_simple((char *) hc_name, 0, NULL, 0);
++
++ if (IS_ERR(devdrv_hc_platform_device))
++ return PTR_ERR(devdrv_hc_platform_device);
++ return driver_register(&devdrv_hc_device_driver);
++ /*
++ * Note that we do not set the DMA mask for the device,
++ * i.e. we pretend that we will use PIO, since no specific
++ * allocation routines are needed for DMA buffers. This will
++ * cause the HCD buffer allocation routines to fall back to
++ * kmalloc().
++ */
++}
++
++/* unregister driver */
++static void __exit module_hcd_exit(void)
++{
++ driver_unregister(&devdrv_hc_device_driver);
++}
++
++
++/* Module hooks */
++module_init(module_hcd_init);
++module_exit(module_hcd_exit);
+--- linux-2.6.19.2.orig/drivers/usb/host/hc_crisv10.h 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/drivers/usb/host/hc_crisv10.h 1970-01-01 01:00:00.000000000 +0100
+@@ -1,289 +0,0 @@
+-#ifndef __LINUX_ETRAX_USB_H
+-#define __LINUX_ETRAX_USB_H
+-
+-#include <linux/types.h>
+-#include <linux/list.h>
+-
+-typedef struct USB_IN_Desc {
+- volatile __u16 sw_len;
+- volatile __u16 command;
+- volatile unsigned long next;
+- volatile unsigned long buf;
+- volatile __u16 hw_len;
+- volatile __u16 status;
+-} USB_IN_Desc_t;
+-
+-typedef struct USB_SB_Desc {
+- volatile __u16 sw_len;
+- volatile __u16 command;
+- volatile unsigned long next;
+- volatile unsigned long buf;
+- __u32 dummy;
+-} USB_SB_Desc_t;
+-
+-typedef struct USB_EP_Desc {
+- volatile __u16 hw_len;
+- volatile __u16 command;
+- volatile unsigned long sub;
+- volatile unsigned long next;
+- __u32 dummy;
+-} USB_EP_Desc_t;
+-
+-struct virt_root_hub {
+- int devnum;
+- void *urb;
+- void *int_addr;
+- int send;
+- int interval;
+- int numports;
+- struct timer_list rh_int_timer;
+- volatile __u16 wPortChange_1;
+- volatile __u16 wPortChange_2;
+- volatile __u16 prev_wPortStatus_1;
+- volatile __u16 prev_wPortStatus_2;
+-};
+-
+-struct etrax_usb_intr_traffic {
+- int sleeping;
+- int error;
+- struct wait_queue *wq;
+-};
+-
+-typedef struct etrax_usb_hc {
+- struct usb_bus *bus;
+- struct virt_root_hub rh;
+- struct etrax_usb_intr_traffic intr;
+-} etrax_hc_t;
+-
+-typedef enum {
+- STARTED,
+- NOT_STARTED,
+- UNLINK,
+- TRANSFER_DONE,
+- WAITING_FOR_DESCR_INTR
+-} etrax_usb_urb_state_t;
+-
+-
+-
+-typedef struct etrax_usb_urb_priv {
+- /* The first_sb field is used for freeing all SB descriptors belonging
+- to an urb. The corresponding ep descriptor's sub pointer cannot be
+- used for this since the DMA advances the sub pointer as it processes
+- the sb list. */
+- USB_SB_Desc_t *first_sb;
+- /* The last_sb field referes to the last SB descriptor that belongs to
+- this urb. This is important to know so we can free the SB descriptors
+- that ranges between first_sb and last_sb. */
+- USB_SB_Desc_t *last_sb;
+-
+- /* The rx_offset field is used in ctrl and bulk traffic to keep track
+- of the offset in the urb's transfer_buffer where incoming data should be
+- copied to. */
+- __u32 rx_offset;
+-
+- /* Counter used in isochronous transfers to keep track of the
+- number of packets received/transmitted. */
+- __u32 isoc_packet_counter;
+-
+- /* This field is used to pass information about the urb's current state between
+- the various interrupt handlers (thus marked volatile). */
+- volatile etrax_usb_urb_state_t urb_state;
+-
+- /* Connection between the submitted urb and ETRAX epid number */
+- __u8 epid;
+-
+- /* The rx_data_list field is used for periodic traffic, to hold
+- received data for later processing in the the complete_urb functions,
+- where the data us copied to the urb's transfer_buffer. Basically, we
+- use this intermediate storage because we don't know when it's safe to
+- reuse the transfer_buffer (FIXME?). */
+- struct list_head rx_data_list;
+-} etrax_urb_priv_t;
+-
+-/* This struct is for passing data from the top half to the bottom half. */
+-typedef struct usb_interrupt_registers
+-{
+- etrax_hc_t *hc;
+- __u32 r_usb_epid_attn;
+- __u8 r_usb_status;
+- __u16 r_usb_rh_port_status_1;
+- __u16 r_usb_rh_port_status_2;
+- __u32 r_usb_irq_mask_read;
+- __u32 r_usb_fm_number;
+- struct work_struct usb_bh;
+-} usb_interrupt_registers_t;
+-
+-/* This struct is for passing data from the isoc top half to the isoc bottom half. */
+-typedef struct usb_isoc_complete_data
+-{
+- struct urb *urb;
+- struct work_struct usb_bh;
+-} usb_isoc_complete_data_t;
+-
+-/* This struct holds data we get from the rx descriptors for DMA channel 9
+- for periodic traffic (intr and isoc). */
+-typedef struct rx_data
+-{
+- void *data;
+- int length;
+- struct list_head list;
+-} rx_data_t;
+-
+-typedef struct urb_entry
+-{
+- struct urb *urb;
+- struct list_head list;
+-} urb_entry_t;
+-
+-/* ---------------------------------------------------------------------------
+- Virtual Root HUB
+- ------------------------------------------------------------------------- */
+-/* destination of request */
+-#define RH_INTERFACE 0x01
+-#define RH_ENDPOINT 0x02
+-#define RH_OTHER 0x03
+-
+-#define RH_CLASS 0x20
+-#define RH_VENDOR 0x40
+-
+-/* Requests: bRequest << 8 | bmRequestType */
+-#define RH_GET_STATUS 0x0080
+-#define RH_CLEAR_FEATURE 0x0100
+-#define RH_SET_FEATURE 0x0300
+-#define RH_SET_ADDRESS 0x0500
+-#define RH_GET_DESCRIPTOR 0x0680
+-#define RH_SET_DESCRIPTOR 0x0700
+-#define RH_GET_CONFIGURATION 0x0880
+-#define RH_SET_CONFIGURATION 0x0900
+-#define RH_GET_STATE 0x0280
+-#define RH_GET_INTERFACE 0x0A80
+-#define RH_SET_INTERFACE 0x0B00
+-#define RH_SYNC_FRAME 0x0C80
+-/* Our Vendor Specific Request */
+-#define RH_SET_EP 0x2000
+-
+-
+-/* Hub port features */
+-#define RH_PORT_CONNECTION 0x00
+-#define RH_PORT_ENABLE 0x01
+-#define RH_PORT_SUSPEND 0x02
+-#define RH_PORT_OVER_CURRENT 0x03
+-#define RH_PORT_RESET 0x04
+-#define RH_PORT_POWER 0x08
+-#define RH_PORT_LOW_SPEED 0x09
+-#define RH_C_PORT_CONNECTION 0x10
+-#define RH_C_PORT_ENABLE 0x11
+-#define RH_C_PORT_SUSPEND 0x12
+-#define RH_C_PORT_OVER_CURRENT 0x13
+-#define RH_C_PORT_RESET 0x14
+-
+-/* Hub features */
+-#define RH_C_HUB_LOCAL_POWER 0x00
+-#define RH_C_HUB_OVER_CURRENT 0x01
+-
+-#define RH_DEVICE_REMOTE_WAKEUP 0x00
+-#define RH_ENDPOINT_STALL 0x01
+-
+-/* Our Vendor Specific feature */
+-#define RH_REMOVE_EP 0x00
+-
+-
+-#define RH_ACK 0x01
+-#define RH_REQ_ERR -1
+-#define RH_NACK 0x00
+-
+-/* Field definitions for */
+-
+-#define USB_IN_command__eol__BITNR 0 /* command macros */
+-#define USB_IN_command__eol__WIDTH 1
+-#define USB_IN_command__eol__no 0
+-#define USB_IN_command__eol__yes 1
+-
+-#define USB_IN_command__intr__BITNR 3
+-#define USB_IN_command__intr__WIDTH 1
+-#define USB_IN_command__intr__no 0
+-#define USB_IN_command__intr__yes 1
+-
+-#define USB_IN_status__eop__BITNR 1 /* status macros. */
+-#define USB_IN_status__eop__WIDTH 1
+-#define USB_IN_status__eop__no 0
+-#define USB_IN_status__eop__yes 1
+-
+-#define USB_IN_status__eot__BITNR 5
+-#define USB_IN_status__eot__WIDTH 1
+-#define USB_IN_status__eot__no 0
+-#define USB_IN_status__eot__yes 1
+-
+-#define USB_IN_status__error__BITNR 6
+-#define USB_IN_status__error__WIDTH 1
+-#define USB_IN_status__error__no 0
+-#define USB_IN_status__error__yes 1
+-
+-#define USB_IN_status__nodata__BITNR 7
+-#define USB_IN_status__nodata__WIDTH 1
+-#define USB_IN_status__nodata__no 0
+-#define USB_IN_status__nodata__yes 1
+-
+-#define USB_IN_status__epid__BITNR 8
+-#define USB_IN_status__epid__WIDTH 5
+-
+-#define USB_EP_command__eol__BITNR 0
+-#define USB_EP_command__eol__WIDTH 1
+-#define USB_EP_command__eol__no 0
+-#define USB_EP_command__eol__yes 1
+-
+-#define USB_EP_command__eof__BITNR 1
+-#define USB_EP_command__eof__WIDTH 1
+-#define USB_EP_command__eof__no 0
+-#define USB_EP_command__eof__yes 1
+-
+-#define USB_EP_command__intr__BITNR 3
+-#define USB_EP_command__intr__WIDTH 1
+-#define USB_EP_command__intr__no 0
+-#define USB_EP_command__intr__yes 1
+-
+-#define USB_EP_command__enable__BITNR 4
+-#define USB_EP_command__enable__WIDTH 1
+-#define USB_EP_command__enable__no 0
+-#define USB_EP_command__enable__yes 1
+-
+-#define USB_EP_command__hw_valid__BITNR 5
+-#define USB_EP_command__hw_valid__WIDTH 1
+-#define USB_EP_command__hw_valid__no 0
+-#define USB_EP_command__hw_valid__yes 1
+-
+-#define USB_EP_command__epid__BITNR 8
+-#define USB_EP_command__epid__WIDTH 5
+-
+-#define USB_SB_command__eol__BITNR 0 /* command macros. */
+-#define USB_SB_command__eol__WIDTH 1
+-#define USB_SB_command__eol__no 0
+-#define USB_SB_command__eol__yes 1
+-
+-#define USB_SB_command__eot__BITNR 1
+-#define USB_SB_command__eot__WIDTH 1
+-#define USB_SB_command__eot__no 0
+-#define USB_SB_command__eot__yes 1
+-
+-#define USB_SB_command__intr__BITNR 3
+-#define USB_SB_command__intr__WIDTH 1
+-#define USB_SB_command__intr__no 0
+-#define USB_SB_command__intr__yes 1
+-
+-#define USB_SB_command__tt__BITNR 4
+-#define USB_SB_command__tt__WIDTH 2
+-#define USB_SB_command__tt__zout 0
+-#define USB_SB_command__tt__in 1
+-#define USB_SB_command__tt__out 2
+-#define USB_SB_command__tt__setup 3
+-
+-
+-#define USB_SB_command__rem__BITNR 8
+-#define USB_SB_command__rem__WIDTH 6
+-
+-#define USB_SB_command__full__BITNR 6
+-#define USB_SB_command__full__WIDTH 1
+-#define USB_SB_command__full__no 0
+-#define USB_SB_command__full__yes 1
+-
+-#endif
+--- linux-2.6.19.2.orig/drivers/usb/host/hc-crisv10.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/drivers/usb/host/hc-crisv10.h 2006-01-27 13:59:58.000000000 +0100
+@@ -0,0 +1,330 @@
++#ifndef __LINUX_ETRAX_USB_H
++#define __LINUX_ETRAX_USB_H
++
++#include <linux/types.h>
++#include <linux/list.h>
++
++struct USB_IN_Desc {
++ volatile __u16 sw_len;
++ volatile __u16 command;
++ volatile unsigned long next;
++ volatile unsigned long buf;
++ volatile __u16 hw_len;
++ volatile __u16 status;
++};
++
++struct USB_SB_Desc {
++ volatile __u16 sw_len;
++ volatile __u16 command;
++ volatile unsigned long next;
++ volatile unsigned long buf;
++};
++
++struct USB_EP_Desc {
++ volatile __u16 hw_len;
++ volatile __u16 command;
++ volatile unsigned long sub;
++ volatile unsigned long next;
++};
++
++
++/* Root Hub port status struct */
++struct crisv10_rh {
++ volatile __u16 wPortChange[2];
++ volatile __u16 wPortStatusPrev[2];
++};
++
++/* HCD description */
++struct crisv10_hcd {
++ spinlock_t lock;
++ __u8 num_ports;
++ __u8 running;
++};
++
++
++/* Endpoint HC private data description */
++struct crisv10_ep_priv {
++ int epid;
++};
++
++/* Additional software state info for a USB Controller epid */
++struct etrax_epid {
++ __u8 inuse; /* !0 = setup in Etrax and used for a endpoint */
++ __u8 disabled; /* !0 = Temporarly disabled to avoid resubmission */
++ __u8 type; /* Setup as: PIPE_BULK, PIPE_CONTROL ... */
++ __u8 out_traffic; /* !0 = This epid is for out traffic */
++};
++
++/* Struct to hold information of scheduled later URB completion */
++struct urb_later_data {
++ struct work_struct ws;
++ struct usb_hcd *hcd;
++ struct urb *urb;
++ int urb_num;
++ int status;
++};
++
++
++typedef enum {
++ STARTED,
++ NOT_STARTED,
++ UNLINK,
++} crisv10_urb_state_t;
++
++
++struct crisv10_urb_priv {
++ /* Sequence number for this URB. Every new submited URB gets this from
++ a incrementing counter. Used when a URB is scheduled for later finish to
++ be sure that the intended URB hasn't already been completed (device
++ drivers has a tendency to reuse URBs once they are completed, causing us
++ to not be able to single old ones out only based on the URB pointer.) */
++ __u32 urb_num;
++
++ /* The first_sb field is used for freeing all SB descriptors belonging
++ to an urb. The corresponding ep descriptor's sub pointer cannot be
++ used for this since the DMA advances the sub pointer as it processes
++ the sb list. */
++ struct USB_SB_Desc *first_sb;
++
++ /* The last_sb field referes to the last SB descriptor that belongs to
++ this urb. This is important to know so we can free the SB descriptors
++ that ranges between first_sb and last_sb. */
++ struct USB_SB_Desc *last_sb;
++
++ /* The rx_offset field is used in ctrl and bulk traffic to keep track
++ of the offset in the urb's transfer_buffer where incoming data should be
++ copied to. */
++ __u32 rx_offset;
++
++ /* Counter used in isochronous transfers to keep track of the
++ number of packets received/transmitted. */
++ __u32 isoc_packet_counter;
++
++ /* Flag that marks if this Isoc Out URB has finished it's transfer. Used
++ because several URBs can be finished before list is processed */
++ __u8 isoc_out_done;
++
++ /* This field is used to pass information about the urb's current state
++ between the various interrupt handlers (thus marked volatile). */
++ volatile crisv10_urb_state_t urb_state;
++
++ /* In Ctrl transfers consist of (at least) 3 packets: SETUP, IN and ZOUT.
++ When DMA8 sub-channel 2 has processed the SB list for this sequence we
++ get a interrupt. We also get a interrupt for In transfers and which
++ one of these interrupts that comes first depends of data size and device.
++ To be sure that we have got both interrupts before we complete the URB
++ we have these to flags that shows which part that has completed.
++ We can then check when we get one of the interrupts that if the other has
++ occured it's safe for us to complete the URB, otherwise we set appropriate
++ flag and do the completion when we get the other interrupt. */
++ volatile unsigned char ctrl_zout_done;
++ volatile unsigned char ctrl_rx_done;
++
++ /* Connection between the submitted urb and ETRAX epid number */
++ __u8 epid;
++
++ /* The rx_data_list field is used for periodic traffic, to hold
++ received data for later processing in the the complete_urb functions,
++ where the data us copied to the urb's transfer_buffer. Basically, we
++ use this intermediate storage because we don't know when it's safe to
++ reuse the transfer_buffer (FIXME?). */
++ struct list_head rx_data_list;
++
++
++ /* The interval time rounded up to closest 2^N */
++ int interval;
++
++ /* Pool of EP descriptors needed if it's a INTR transfer.
++ Amount of EPs in pool correspons to how many INTR that should
++ be inserted in TxIntrEPList (max 128, defined by MAX_INTR_INTERVAL) */
++ struct USB_EP_Desc* intr_ep_pool[128];
++
++ /* The mount of EPs allocated for this INTR URB */
++ int intr_ep_pool_length;
++
++ /* Pointer to info struct if URB is scheduled to be finished later */
++ struct urb_later_data* later_data;
++};
++
++
++/* This struct is for passing data from the top half to the bottom half irq
++ handlers */
++struct crisv10_irq_reg {
++ struct usb_hcd* hcd;
++ __u32 r_usb_epid_attn;
++ __u8 r_usb_status;
++ __u16 r_usb_rh_port_status_1;
++ __u16 r_usb_rh_port_status_2;
++ __u32 r_usb_irq_mask_read;
++ __u32 r_usb_fm_number;
++ struct work_struct usb_bh;
++};
++
++
++/* This struct is for passing data from the isoc top half to the isoc bottom
++ half. */
++struct crisv10_isoc_complete_data {
++ struct usb_hcd *hcd;
++ struct urb *urb;
++ struct work_struct usb_bh;
++};
++
++/* Entry item for URB lists for each endpint */
++typedef struct urb_entry
++{
++ struct urb *urb;
++ struct list_head list;
++} urb_entry_t;
++
++/* ---------------------------------------------------------------------------
++ Virtual Root HUB
++ ------------------------------------------------------------------------- */
++/* destination of request */
++#define RH_INTERFACE 0x01
++#define RH_ENDPOINT 0x02
++#define RH_OTHER 0x03
++
++#define RH_CLASS 0x20
++#define RH_VENDOR 0x40
++
++/* Requests: bRequest << 8 | bmRequestType */
++#define RH_GET_STATUS 0x0080
++#define RH_CLEAR_FEATURE 0x0100
++#define RH_SET_FEATURE 0x0300
++#define RH_SET_ADDRESS 0x0500
++#define RH_GET_DESCRIPTOR 0x0680
++#define RH_SET_DESCRIPTOR 0x0700
++#define RH_GET_CONFIGURATION 0x0880
++#define RH_SET_CONFIGURATION 0x0900
++#define RH_GET_STATE 0x0280
++#define RH_GET_INTERFACE 0x0A80
++#define RH_SET_INTERFACE 0x0B00
++#define RH_SYNC_FRAME 0x0C80
++/* Our Vendor Specific Request */
++#define RH_SET_EP 0x2000
++
++
++/* Hub port features */
++#define RH_PORT_CONNECTION 0x00
++#define RH_PORT_ENABLE 0x01
++#define RH_PORT_SUSPEND 0x02
++#define RH_PORT_OVER_CURRENT 0x03
++#define RH_PORT_RESET 0x04
++#define RH_PORT_POWER 0x08
++#define RH_PORT_LOW_SPEED 0x09
++#define RH_C_PORT_CONNECTION 0x10
++#define RH_C_PORT_ENABLE 0x11
++#define RH_C_PORT_SUSPEND 0x12
++#define RH_C_PORT_OVER_CURRENT 0x13
++#define RH_C_PORT_RESET 0x14
++
++/* Hub features */
++#define RH_C_HUB_LOCAL_POWER 0x00
++#define RH_C_HUB_OVER_CURRENT 0x01
++
++#define RH_DEVICE_REMOTE_WAKEUP 0x00
++#define RH_ENDPOINT_STALL 0x01
++
++/* Our Vendor Specific feature */
++#define RH_REMOVE_EP 0x00
++
++
++#define RH_ACK 0x01
++#define RH_REQ_ERR -1
++#define RH_NACK 0x00
++
++/* Field definitions for */
++
++#define USB_IN_command__eol__BITNR 0 /* command macros */
++#define USB_IN_command__eol__WIDTH 1
++#define USB_IN_command__eol__no 0
++#define USB_IN_command__eol__yes 1
++
++#define USB_IN_command__intr__BITNR 3
++#define USB_IN_command__intr__WIDTH 1
++#define USB_IN_command__intr__no 0
++#define USB_IN_command__intr__yes 1
++
++#define USB_IN_status__eop__BITNR 1 /* status macros. */
++#define USB_IN_status__eop__WIDTH 1
++#define USB_IN_status__eop__no 0
++#define USB_IN_status__eop__yes 1
++
++#define USB_IN_status__eot__BITNR 5
++#define USB_IN_status__eot__WIDTH 1
++#define USB_IN_status__eot__no 0
++#define USB_IN_status__eot__yes 1
++
++#define USB_IN_status__error__BITNR 6
++#define USB_IN_status__error__WIDTH 1
++#define USB_IN_status__error__no 0
++#define USB_IN_status__error__yes 1
++
++#define USB_IN_status__nodata__BITNR 7
++#define USB_IN_status__nodata__WIDTH 1
++#define USB_IN_status__nodata__no 0
++#define USB_IN_status__nodata__yes 1
++
++#define USB_IN_status__epid__BITNR 8
++#define USB_IN_status__epid__WIDTH 5
++
++#define USB_EP_command__eol__BITNR 0
++#define USB_EP_command__eol__WIDTH 1
++#define USB_EP_command__eol__no 0
++#define USB_EP_command__eol__yes 1
++
++#define USB_EP_command__eof__BITNR 1
++#define USB_EP_command__eof__WIDTH 1
++#define USB_EP_command__eof__no 0
++#define USB_EP_command__eof__yes 1
++
++#define USB_EP_command__intr__BITNR 3
++#define USB_EP_command__intr__WIDTH 1
++#define USB_EP_command__intr__no 0
++#define USB_EP_command__intr__yes 1
++
++#define USB_EP_command__enable__BITNR 4
++#define USB_EP_command__enable__WIDTH 1
++#define USB_EP_command__enable__no 0
++#define USB_EP_command__enable__yes 1
++
++#define USB_EP_command__hw_valid__BITNR 5
++#define USB_EP_command__hw_valid__WIDTH 1
++#define USB_EP_command__hw_valid__no 0
++#define USB_EP_command__hw_valid__yes 1
++
++#define USB_EP_command__epid__BITNR 8
++#define USB_EP_command__epid__WIDTH 5
++
++#define USB_SB_command__eol__BITNR 0 /* command macros. */
++#define USB_SB_command__eol__WIDTH 1
++#define USB_SB_command__eol__no 0
++#define USB_SB_command__eol__yes 1
++
++#define USB_SB_command__eot__BITNR 1
++#define USB_SB_command__eot__WIDTH 1
++#define USB_SB_command__eot__no 0
++#define USB_SB_command__eot__yes 1
++
++#define USB_SB_command__intr__BITNR 3
++#define USB_SB_command__intr__WIDTH 1
++#define USB_SB_command__intr__no 0
++#define USB_SB_command__intr__yes 1
++
++#define USB_SB_command__tt__BITNR 4
++#define USB_SB_command__tt__WIDTH 2
++#define USB_SB_command__tt__zout 0
++#define USB_SB_command__tt__in 1
++#define USB_SB_command__tt__out 2
++#define USB_SB_command__tt__setup 3
++
++
++#define USB_SB_command__rem__BITNR 8
++#define USB_SB_command__rem__WIDTH 6
++
++#define USB_SB_command__full__BITNR 6
++#define USB_SB_command__full__WIDTH 1
++#define USB_SB_command__full__no 0
++#define USB_SB_command__full__yes 1
++
++#endif
+diff -urN linux-2.6.19.2.orig/drivers/net/cris/Makefile linux-2.6.19.2.dev/drivers/net/cris/Makefile
+--- linux-2.6.19.2.orig/drivers/net/cris/Makefile 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/drivers/net/cris/Makefile 2005-01-04 13:09:12.000000000 +0100
+@@ -1 +1,2 @@
+ obj-$(CONFIG_ETRAX_ARCH_V10) += eth_v10.o
++obj-$(CONFIG_ETRAX_ARCH_V32) += eth_v32.o
+diff -urN linux-2.6.19.2.orig/drivers/net/cris/eth_v10.c linux-2.6.19.2.dev/drivers/net/cris/eth_v10.c
+--- linux-2.6.19.2.orig/drivers/net/cris/eth_v10.c 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.dev/drivers/net/cris/eth_v10.c 2007-01-15 16:35:48.000000000 +0100
+@@ -1,221 +1,10 @@
+-/* $Id: ethernet.c,v 1.31 2004/10/18 14:49:03 starvik Exp $
+- *
+- * e100net.c: A network driver for the ETRAX 100LX network controller.
++/*
++ * Driver for the ETRAX 100LX network controller.
+ *
+- * Copyright (c) 1998-2002 Axis Communications AB.
++ * Copyright (c) 1998-2006 Axis Communications AB.
+ *
+ * The outline of this driver comes from skeleton.c.
+ *
+- * $Log: ethernet.c,v $
+- * Revision 1.31 2004/10/18 14:49:03 starvik
+- * Use RX interrupt as random source
+- *
+- * Revision 1.30 2004/09/29 10:44:04 starvik
+- * Enabed MAC-address output again
+- *
+- * Revision 1.29 2004/08/24 07:14:05 starvik
+- * Make use of generic MDIO interface and constants.
+- *
+- * Revision 1.28 2004/08/20 09:37:11 starvik
+- * Added support for Intel LXT972A. Creds to Randy Scarborough.
+- *
+- * Revision 1.27 2004/08/16 12:37:22 starvik
+- * Merge of Linux 2.6.8
+- *
+- * Revision 1.25 2004/06/21 10:29:57 starvik
+- * Merge of Linux 2.6.7
+- *
+- * Revision 1.23 2004/06/09 05:29:22 starvik
+- * Avoid any race where R_DMA_CH1_FIRST is NULL (may trigger cache bug).
+- *
+- * Revision 1.22 2004/05/14 07:58:03 starvik
+- * Merge of changes from 2.4
+- *
+- * Revision 1.20 2004/03/11 11:38:40 starvik
+- * Merge of Linux 2.6.4
+- *
+- * Revision 1.18 2003/12/03 13:45:46 starvik
+- * Use hardware pad for short packets to prevent information leakage.
+- *
+- * Revision 1.17 2003/07/04 08:27:37 starvik
+- * Merge of Linux 2.5.74
+- *
+- * Revision 1.16 2003/04/24 08:28:22 starvik
+- * New LED behaviour: LED off when no link
+- *
+- * Revision 1.15 2003/04/09 05:20:47 starvik
+- * Merge of Linux 2.5.67
+- *
+- * Revision 1.13 2003/03/06 16:11:01 henriken
+- * Off by one error in group address register setting.
+- *
+- * Revision 1.12 2003/02/27 17:24:19 starvik
+- * Corrected Rev to Revision
+- *
+- * Revision 1.11 2003/01/24 09:53:21 starvik
+- * Oops. Initialize GA to 0, not to 1
+- *
+- * Revision 1.10 2003/01/24 09:50:55 starvik
+- * Initialize GA_0 and GA_1 to 0 to avoid matching of unwanted packets
+- *
+- * Revision 1.9 2002/12/13 07:40:58 starvik
+- * Added basic ethtool interface
+- * Handled out of memory when allocating new buffers
+- *
+- * Revision 1.8 2002/12/11 13:13:57 starvik
+- * Added arch/ to v10 specific includes
+- * Added fix from Linux 2.4 in serial.c (flush_to_flip_buffer)
+- *
+- * Revision 1.7 2002/11/26 09:41:42 starvik
+- * Added e100_set_config (standard interface to set media type)
+- * Added protection against preemptive scheduling
+- * Added standard MII ioctls
+- *
+- * Revision 1.6 2002/11/21 07:18:18 starvik
+- * Timers must be initialized in 2.5.48
+- *
+- * Revision 1.5 2002/11/20 11:56:11 starvik
+- * Merge of Linux 2.5.48
+- *
+- * Revision 1.4 2002/11/18 07:26:46 starvik
+- * Linux 2.5 port of latest Linux 2.4 ethernet driver
+- *
+- * Revision 1.33 2002/10/02 20:16:17 hp
+- * SETF, SETS: Use underscored IO_x_ macros rather than incorrect token concatenation
+- *
+- * Revision 1.32 2002/09/16 06:05:58 starvik
+- * Align memory returned by dev_alloc_skb
+- * Moved handling of sent packets to interrupt to avoid reference counting problem
+- *
+- * Revision 1.31 2002/09/10 13:28:23 larsv
+- * Return -EINVAL for unknown ioctls to avoid confusing tools that tests
+- * for supported functionality by issuing special ioctls, i.e. wireless
+- * extensions.
+- *
+- * Revision 1.30 2002/05/07 18:50:08 johana
+- * Correct spelling in comments.
+- *
+- * Revision 1.29 2002/05/06 05:38:49 starvik
+- * Performance improvements:
+- * Large packets are not copied (breakpoint set to 256 bytes)
+- * The cache bug workaround is delayed until half of the receive list
+- * has been used
+- * Added transmit list
+- * Transmit interrupts are only enabled when transmit queue is full
+- *
+- * Revision 1.28.2.1 2002/04/30 08:15:51 starvik
+- * Performance improvements:
+- * Large packets are not copied (breakpoint set to 256 bytes)
+- * The cache bug workaround is delayed until half of the receive list
+- * has been used.
+- * Added transmit list
+- * Transmit interrupts are only enabled when transmit queue is full
+- *
+- * Revision 1.28 2002/04/22 11:47:21 johana
+- * Fix according to 2.4.19-pre7. time_after/time_before and
+- * missing end of comment.
+- * The patch has a typo for ethernet.c in e100_clear_network_leds(),
+- * that is fixed here.
+- *
+- * Revision 1.27 2002/04/12 11:55:11 bjornw
+- * Added TODO
+- *
+- * Revision 1.26 2002/03/15 17:11:02 bjornw
+- * Use prepare_rx_descriptor after the CPU has touched the receiving descs
+- *
+- * Revision 1.25 2002/03/08 13:07:53 bjornw
+- * Unnecessary spinlock removed
+- *
+- * Revision 1.24 2002/02/20 12:57:43 fredriks
+- * Replaced MIN() with min().
+- *
+- * Revision 1.23 2002/02/20 10:58:14 fredriks
+- * Strip the Ethernet checksum (4 bytes) before forwarding a frame to upper layers.
+- *
+- * Revision 1.22 2002/01/30 07:48:22 matsfg
+- * Initiate R_NETWORK_TR_CTRL
+- *
+- * Revision 1.21 2001/11/23 11:54:49 starvik
+- * Added IFF_PROMISC and IFF_ALLMULTI handling in set_multicast_list
+- * Removed compiler warnings
+- *
+- * Revision 1.20 2001/11/12 19:26:00 pkj
+- * * Corrected e100_negotiate() to not assign half to current_duplex when
+- * it was supposed to compare them...
+- * * Cleaned up failure handling in e100_open().
+- * * Fixed compiler warnings.
+- *
+- * Revision 1.19 2001/11/09 07:43:09 starvik
+- * Added full duplex support
+- * Added ioctl to set speed and duplex
+- * Clear LED timer only runs when LED is lit
+- *
+- * Revision 1.18 2001/10/03 14:40:43 jonashg
+- * Update rx_bytes counter.
+- *
+- * Revision 1.17 2001/06/11 12:43:46 olof
+- * Modified defines for network LED behavior
+- *
+- * Revision 1.16 2001/05/30 06:12:46 markusl
+- * TxDesc.next should not be set to NULL
+- *
+- * Revision 1.15 2001/05/29 10:27:04 markusl
+- * Updated after review remarks:
+- * +Use IO_EXTRACT
+- * +Handle underrun
+- *
+- * Revision 1.14 2001/05/29 09:20:14 jonashg
+- * Use driver name on printk output so one can tell which driver that complains.
+- *
+- * Revision 1.13 2001/05/09 12:35:59 johana
+- * Use DMA_NBR and IRQ_NBR defines from dma.h and irq.h
+- *
+- * Revision 1.12 2001/04/05 11:43:11 tobiasa
+- * Check dev before panic.
+- *
+- * Revision 1.11 2001/04/04 11:21:05 markusl
+- * Updated according to review remarks
+- *
+- * Revision 1.10 2001/03/26 16:03:06 bjornw
+- * Needs linux/config.h
+- *
+- * Revision 1.9 2001/03/19 14:47:48 pkj
+- * * Make sure there is always a pause after the network LEDs are
+- * changed so they will not look constantly lit during heavy traffic.
+- * * Always use HZ when setting times relative to jiffies.
+- * * Use LED_NETWORK_SET() when setting the network LEDs.
+- *
+- * Revision 1.8 2001/02/27 13:52:48 bjornw
+- * malloc.h -> slab.h
+- *
+- * Revision 1.7 2001/02/23 13:46:38 bjornw
+- * Spellling check
+- *
+- * Revision 1.6 2001/01/26 15:21:04 starvik
+- * Don't disable interrupts while reading MDIO registers (MDIO is slow)
+- * Corrected promiscuous mode
+- * Improved deallocation of IRQs ("ifconfig eth0 down" now works)
+- *
+- * Revision 1.5 2000/11/29 17:22:22 bjornw
+- * Get rid of the udword types legacy stuff
+- *
+- * Revision 1.4 2000/11/22 16:36:09 bjornw
+- * Please marketing by using the correct case when spelling Etrax.
+- *
+- * Revision 1.3 2000/11/21 16:43:04 bjornw
+- * Minor short->int change
+- *
+- * Revision 1.2 2000/11/08 14:27:57 bjornw
+- * 2.4 port
+- *
+- * Revision 1.1 2000/11/06 13:56:00 bjornw
+- * Verbatim copy of the 1.24 version of e100net.c from elinux
+- *
+- * Revision 1.24 2000/10/04 15:55:23 bjornw
+- * * Use virt_to_phys etc. for DMA addresses
+- * * Removed bogus CHECKSUM_UNNECESSARY
+- *
+- *
+ */
+
+
+@@ -251,6 +40,7 @@
+ #include <asm/bitops.h>
+ #include <asm/ethernet.h>
+ #include <asm/cache.h>
++#include <asm/arch/io_interface_mux.h>
+
+ //#define ETHDEBUG
+ #define D(x)
+@@ -280,6 +70,9 @@
+ * by this lock as well.
+ */
+ spinlock_t lock;
++
++ spinlock_t led_lock; /* Protect LED state */
++ spinlock_t transceiver_lock; /* Protect transceiver state. */
+ };
+
+ typedef struct etrax_eth_descr
+@@ -296,8 +89,6 @@
+ void (*check_duplex)(struct net_device* dev);
+ };
+
+-struct transceiver_ops* transceiver;
+-
+ /* Duplex settings */
+ enum duplex
+ {
+@@ -308,7 +99,7 @@
+
+ /* Dma descriptors etc. */
+
+-#define MAX_MEDIA_DATA_SIZE 1518
++#define MAX_MEDIA_DATA_SIZE 1522
+
+ #define MIN_PACKET_LEN 46
+ #define ETHER_HEAD_LEN 14
+@@ -332,9 +123,9 @@
+ #define MDIO_TDK_DIAGNOSTIC_DPLX 0x800
+
+ /*Intel LXT972A specific*/
+-#define MDIO_INT_STATUS_REG_2 0x0011
+-#define MDIO_INT_FULL_DUPLEX_IND ( 1 << 9 )
+-#define MDIO_INT_SPEED ( 1 << 14 )
++#define MDIO_INT_STATUS_REG_2 0x0011
++#define MDIO_INT_FULL_DUPLEX_IND (1 << 9)
++#define MDIO_INT_SPEED (1 << 14)
+
+ /* Network flash constants */
+ #define NET_FLASH_TIME (HZ/50) /* 20 ms */
+@@ -345,8 +136,8 @@
+ #define NO_NETWORK_ACTIVITY 0
+ #define NETWORK_ACTIVITY 1
+
+-#define NBR_OF_RX_DESC 64
+-#define NBR_OF_TX_DESC 256
++#define NBR_OF_RX_DESC 32
++#define NBR_OF_TX_DESC 16
+
+ /* Large packets are sent directly to upper layers while small packets are */
+ /* copied (to reduce memory waste). The following constant decides the breakpoint */
+@@ -368,7 +159,6 @@
+ static etrax_eth_descr *myNextRxDesc; /* Points to the next descriptor to
+ to be processed */
+ static etrax_eth_descr *myLastRxDesc; /* The last processed descriptor */
+-static etrax_eth_descr *myPrevRxDesc; /* The descriptor right before myNextRxDesc */
+
+ static etrax_eth_descr RxDescList[NBR_OF_RX_DESC] __attribute__ ((aligned(32)));
+
+@@ -378,7 +168,6 @@
+ static etrax_eth_descr TxDescList[NBR_OF_TX_DESC] __attribute__ ((aligned(32)));
+
+ static unsigned int network_rec_config_shadow = 0;
+-static unsigned int mdio_phy_addr; /* Transciever address */
+
+ static unsigned int network_tr_ctrl_shadow = 0;
+
+@@ -412,7 +201,7 @@
+ static void e100_tx_timeout(struct net_device *dev);
+ static struct net_device_stats *e100_get_stats(struct net_device *dev);
+ static void set_multicast_list(struct net_device *dev);
+-static void e100_hardware_send_packet(char *buf, int length);
++static void e100_hardware_send_packet(struct net_local* np, char *buf, int length);
+ static void update_rx_stats(struct net_device_stats *);
+ static void update_tx_stats(struct net_device_stats *);
+ static int e100_probe_transceiver(struct net_device* dev);
+@@ -435,7 +224,10 @@
+ static void e100_set_network_leds(int active);
+
+ static const struct ethtool_ops e100_ethtool_ops;
+-
++#if defined(CONFIG_ETRAX_NO_PHY)
++static void dummy_check_speed(struct net_device* dev);
++static void dummy_check_duplex(struct net_device* dev);
++#else
+ static void broadcom_check_speed(struct net_device* dev);
+ static void broadcom_check_duplex(struct net_device* dev);
+ static void tdk_check_speed(struct net_device* dev);
+@@ -444,16 +236,29 @@
+ static void intel_check_duplex(struct net_device* dev);
+ static void generic_check_speed(struct net_device* dev);
+ static void generic_check_duplex(struct net_device* dev);
++#endif
++#ifdef CONFIG_NET_POLL_CONTROLLER
++static void e100_netpoll(struct net_device* dev);
++#endif
++
++static int autoneg_normal = 1;
+
+ struct transceiver_ops transceivers[] =
+ {
++#if defined(CONFIG_ETRAX_NO_PHY)
++ {0x0000, dummy_check_speed, dummy_check_duplex} /* Dummy */
++#else
+ {0x1018, broadcom_check_speed, broadcom_check_duplex}, /* Broadcom */
+ {0xC039, tdk_check_speed, tdk_check_duplex}, /* TDK 2120 */
+ {0x039C, tdk_check_speed, tdk_check_duplex}, /* TDK 2120C */
+- {0x04de, intel_check_speed, intel_check_duplex}, /* Intel LXT972A*/
++ {0x04de, intel_check_speed, intel_check_duplex}, /* Intel LXT972A*/
+ {0x0000, generic_check_speed, generic_check_duplex} /* Generic, must be last */
++#endif
+ };
+
++struct transceiver_ops* transceiver = &transceivers[0];
++static unsigned int mdio_phy_addr = 0; /* PHY address on MDIO bus */
++
+ #define tx_done(dev) (*R_DMA_CH0_CMD == 0)
+
+ /*
+@@ -468,18 +273,26 @@
+ etrax_ethernet_init(void)
+ {
+ struct net_device *dev;
+- struct net_local* np;
++ struct net_local* np;
+ int i, err;
+
+ printk(KERN_INFO
+- "ETRAX 100LX 10/100MBit ethernet v2.0 (c) 2000-2003 Axis Communications AB\n");
+-
++ "ETRAX 100LX 10/100MBit ethernet v2.0 (c) 1998-2006 Axis Communications AB\n");
++
++ if (cris_request_io_interface(if_eth, cardname)) {
++ printk(KERN_CRIT "etrax_ethernet_init failed to get IO interface\n");
++ return -EBUSY;
++ }
++
+ dev = alloc_etherdev(sizeof(struct net_local));
+- np = dev->priv;
+-
+ if (!dev)
+ return -ENOMEM;
++
++ np = netdev_priv(dev);
+
++ /* we do our own locking */
++ dev->features |= NETIF_F_LLTX;
++
+ dev->base_addr = (unsigned int)R_NETWORK_SA_0; /* just to have something to show */
+
+ /* now setup our etrax specific stuff */
+@@ -495,18 +308,26 @@
+ dev->get_stats = e100_get_stats;
+ dev->set_multicast_list = set_multicast_list;
+ dev->set_mac_address = e100_set_mac_address;
+- dev->ethtool_ops = &e100_ethtool_ops;
++ dev->ethtool_ops = &e100_ethtool_ops;
+ dev->do_ioctl = e100_ioctl;
+- dev->set_config = e100_set_config;
++ dev->set_config = e100_set_config;
+ dev->tx_timeout = e100_tx_timeout;
++#ifdef CONFIG_NET_POLL_CONTROLLER
++ dev->poll_controller = e100_netpoll;
++#endif
++
++ spin_lock_init(&np->lock);
++ spin_lock_init(&np->led_lock);
++ spin_lock_init(&np->transceiver_lock);
+
+ /* Initialise the list of Etrax DMA-descriptors */
+
+ /* Initialise receive descriptors */
+
+ for (i = 0; i < NBR_OF_RX_DESC; i++) {
+- /* Allocate two extra cachelines to make sure that buffer used by DMA
+- * does not share cacheline with any other data (to avoid cache bug)
++ /* Allocate two extra cachelines to make sure that buffer used
++ * by DMA does not share cacheline with any other data (to
++ * avoid cache bug)
+ */
+ RxDescList[i].skb = dev_alloc_skb(MAX_MEDIA_DATA_SIZE + 2 * L1_CACHE_BYTES);
+ if (!RxDescList[i].skb)
+@@ -517,6 +338,7 @@
+ RxDescList[i].descr.buf = L1_CACHE_ALIGN(virt_to_phys(RxDescList[i].skb->data));
+ RxDescList[i].descr.status = 0;
+ RxDescList[i].descr.hw_len = 0;
++
+ prepare_rx_descriptor(&RxDescList[i].descr);
+ }
+
+@@ -542,7 +364,6 @@
+
+ myNextRxDesc = &RxDescList[0];
+ myLastRxDesc = &RxDescList[NBR_OF_RX_DESC - 1];
+- myPrevRxDesc = &RxDescList[NBR_OF_RX_DESC - 1];
+ myFirstTxDesc = &TxDescList[0];
+ myNextTxDesc = &TxDescList[0];
+ myLastTxDesc = &TxDescList[NBR_OF_TX_DESC - 1];
+@@ -563,18 +384,19 @@
+ current_speed = 10;
+ current_speed_selection = 0; /* Auto */
+ speed_timer.expires = jiffies + NET_LINK_UP_CHECK_INTERVAL;
+- duplex_timer.data = (unsigned long)dev;
++ speed_timer.data = (unsigned long)dev;
+ speed_timer.function = e100_check_speed;
+
+ clear_led_timer.function = e100_clear_network_leds;
++ clear_led_timer.data = (unsigned long)dev;
+
+ full_duplex = 0;
+ current_duplex = autoneg;
+ duplex_timer.expires = jiffies + NET_DUPLEX_CHECK_INTERVAL;
+- duplex_timer.data = (unsigned long)dev;
++ duplex_timer.data = (unsigned long)dev;
+ duplex_timer.function = e100_check_duplex;
+
+- /* Initialize mii interface */
++ /* Initialize mii interface */
+ np->mii_if.phy_id = mdio_phy_addr;
+ np->mii_if.phy_id_mask = 0x1f;
+ np->mii_if.reg_num_mask = 0x1f;
+@@ -586,6 +408,9 @@
+ /* unwanted addresses are matched */
+ *R_NETWORK_GA_0 = 0x00000000;
+ *R_NETWORK_GA_1 = 0x00000000;
++
++ /* Initialize next time the led can flash */
++ led_next_time = jiffies;
+ return 0;
+ }
+
+@@ -596,7 +421,7 @@
+ static int
+ e100_set_mac_address(struct net_device *dev, void *p)
+ {
+- struct net_local *np = (struct net_local *)dev->priv;
++ struct net_local *np = netdev_priv(dev);
+ struct sockaddr *addr = p;
+ int i;
+
+@@ -680,17 +505,36 @@
+ /* allocate the irq corresponding to the transmitting DMA */
+
+ if (request_irq(NETWORK_DMA_TX_IRQ_NBR, e100rxtx_interrupt, 0,
+- cardname, (void *)dev)) {
++ cardname, (void *)dev)) {
+ goto grace_exit1;
+ }
+
+ /* allocate the irq corresponding to the network errors etc */
+
+ if (request_irq(NETWORK_STATUS_IRQ_NBR, e100nw_interrupt, 0,
+- cardname, (void *)dev)) {
++ cardname, (void *)dev)) {
+ goto grace_exit2;
+ }
+
++ /*
++ * Always allocate the DMA channels after the IRQ,
++ * and clean up on failure.
++ */
++
++ if (cris_request_dma(NETWORK_TX_DMA_NBR,
++ cardname,
++ DMA_VERBOSE_ON_ERROR,
++ dma_eth)) {
++ goto grace_exit3;
++ }
++
++ if (cris_request_dma(NETWORK_RX_DMA_NBR,
++ cardname,
++ DMA_VERBOSE_ON_ERROR,
++ dma_eth)) {
++ goto grace_exit4;
++ }
++
+ /* give the HW an idea of what MAC address we want */
+
+ *R_NETWORK_SA_0 = dev->dev_addr[0] | (dev->dev_addr[1] << 8) |
+@@ -705,6 +549,7 @@
+
+ *R_NETWORK_REC_CONFIG = 0xd; /* broadcast rec, individ. rec, ma0 enabled */
+ #else
++ SETS(network_rec_config_shadow, R_NETWORK_REC_CONFIG, max_size, size1522);
+ SETS(network_rec_config_shadow, R_NETWORK_REC_CONFIG, broadcast, receive);
+ SETS(network_rec_config_shadow, R_NETWORK_REC_CONFIG, ma0, enable);
+ SETF(network_rec_config_shadow, R_NETWORK_REC_CONFIG, duplex, full_duplex);
+@@ -724,8 +569,7 @@
+ SETS(network_tr_ctrl_shadow, R_NETWORK_TR_CTRL, crc, enable);
+ *R_NETWORK_TR_CTRL = network_tr_ctrl_shadow;
+
+- save_flags(flags);
+- cli();
++ local_irq_save(flags);
+
+ /* enable the irq's for ethernet DMA */
+
+@@ -757,12 +601,13 @@
+
+ *R_DMA_CH0_FIRST = 0;
+ *R_DMA_CH0_DESCR = virt_to_phys(myLastTxDesc);
++ netif_start_queue(dev);
+
+- restore_flags(flags);
++ local_irq_restore(flags);
+
+ /* Probe for transceiver */
+ if (e100_probe_transceiver(dev))
+- goto grace_exit3;
++ goto grace_exit5;
+
+ /* Start duplex/speed timers */
+ add_timer(&speed_timer);
+@@ -771,10 +616,14 @@
+ /* We are now ready to accept transmit requeusts from
+ * the queueing layer of the networking.
+ */
+- netif_start_queue(dev);
++ netif_carrier_on(dev);
+
+ return 0;
+
++grace_exit5:
++ cris_free_dma(NETWORK_RX_DMA_NBR, cardname);
++grace_exit4:
++ cris_free_dma(NETWORK_TX_DMA_NBR, cardname);
+ grace_exit3:
+ free_irq(NETWORK_STATUS_IRQ_NBR, (void *)dev);
+ grace_exit2:
+@@ -785,7 +634,13 @@
+ return -EAGAIN;
+ }
+
+-
++#if defined(CONFIG_ETRAX_NO_PHY)
++static void
++dummy_check_speed(struct net_device* dev)
++{
++ current_speed = 100;
++}
++#else
+ static void
+ generic_check_speed(struct net_device* dev)
+ {
+@@ -821,15 +676,18 @@
+ data = e100_get_mdio_reg(dev, mdio_phy_addr, MDIO_INT_STATUS_REG_2);
+ current_speed = (data & MDIO_INT_SPEED ? 100 : 10);
+ }
+-
++#endif
+ static void
+ e100_check_speed(unsigned long priv)
+ {
+ struct net_device* dev = (struct net_device*)priv;
++ struct net_local *np = netdev_priv(dev);
+ static int led_initiated = 0;
+ unsigned long data;
+ int old_speed = current_speed;
+
++ spin_lock(&np->transceiver_lock);
++
+ data = e100_get_mdio_reg(dev, mdio_phy_addr, MII_BMSR);
+ if (!(data & BMSR_LSTATUS)) {
+ current_speed = 0;
+@@ -837,14 +695,22 @@
+ transceiver->check_speed(dev);
+ }
+
++ spin_lock(&np->led_lock);
+ if ((old_speed != current_speed) || !led_initiated) {
+ led_initiated = 1;
+ e100_set_network_leds(NO_NETWORK_ACTIVITY);
++ if (current_speed)
++ netif_carrier_on(dev);
++ else
++ netif_carrier_off(dev);
+ }
++ spin_unlock(&np->led_lock);
+
+ /* Reinitialize the timer. */
+ speed_timer.expires = jiffies + NET_LINK_UP_CHECK_INTERVAL;
+ add_timer(&speed_timer);
++
++ spin_unlock(&np->transceiver_lock);
+ }
+
+ static void
+@@ -857,7 +723,7 @@
+ ADVERTISE_10HALF | ADVERTISE_10FULL);
+
+ switch (current_speed_selection) {
+- case 10 :
++ case 10:
+ if (current_duplex == full)
+ data |= ADVERTISE_10FULL;
+ else if (current_duplex == half)
+@@ -866,7 +732,7 @@
+ data |= ADVERTISE_10HALF | ADVERTISE_10FULL;
+ break;
+
+- case 100 :
++ case 100:
+ if (current_duplex == full)
+ data |= ADVERTISE_100FULL;
+ else if (current_duplex == half)
+@@ -875,45 +741,54 @@
+ data |= ADVERTISE_100HALF | ADVERTISE_100FULL;
+ break;
+
+- case 0 : /* Auto */
++ case 0: /* Auto */
+ if (current_duplex == full)
+ data |= ADVERTISE_100FULL | ADVERTISE_10FULL;
+ else if (current_duplex == half)
+ data |= ADVERTISE_100HALF | ADVERTISE_10HALF;
+ else
+ data |= ADVERTISE_10HALF | ADVERTISE_10FULL |
+- ADVERTISE_100HALF | ADVERTISE_100FULL;
++ ADVERTISE_100HALF | ADVERTISE_100FULL;
+ break;
+
+- default : /* assume autoneg speed and duplex */
++ default: /* assume autoneg speed and duplex */
+ data |= ADVERTISE_10HALF | ADVERTISE_10FULL |
+- ADVERTISE_100HALF | ADVERTISE_100FULL;
++ ADVERTISE_100HALF | ADVERTISE_100FULL;
++ break;
+ }
+
+ e100_set_mdio_reg(dev, mdio_phy_addr, MII_ADVERTISE, data);
+
+ /* Renegotiate with link partner */
+- data = e100_get_mdio_reg(dev, mdio_phy_addr, MII_BMCR);
+- data |= BMCR_ANENABLE | BMCR_ANRESTART;
+-
++ if (autoneg_normal) {
++ data = e100_get_mdio_reg(dev, mdio_phy_addr, MII_BMCR);
++ data |= BMCR_ANENABLE | BMCR_ANRESTART;
++ }
+ e100_set_mdio_reg(dev, mdio_phy_addr, MII_BMCR, data);
+ }
+
+ static void
+ e100_set_speed(struct net_device* dev, unsigned long speed)
+ {
++ struct net_local *np = netdev_priv(dev);
++
++ spin_lock(&np->transceiver_lock);
+ if (speed != current_speed_selection) {
+ current_speed_selection = speed;
+ e100_negotiate(dev);
+ }
++ spin_unlock(&np->transceiver_lock);
+ }
+
+ static void
+ e100_check_duplex(unsigned long priv)
+ {
+ struct net_device *dev = (struct net_device *)priv;
+- struct net_local *np = (struct net_local *)dev->priv;
+- int old_duplex = full_duplex;
++ struct net_local *np = netdev_priv(dev);
++ int old_duplex;
++
++ spin_lock(&np->transceiver_lock);
++ old_duplex = full_duplex;
+ transceiver->check_duplex(dev);
+ if (old_duplex != full_duplex) {
+ /* Duplex changed */
+@@ -925,12 +800,20 @@
+ duplex_timer.expires = jiffies + NET_DUPLEX_CHECK_INTERVAL;
+ add_timer(&duplex_timer);
+ np->mii_if.full_duplex = full_duplex;
++ spin_unlock(&np->transceiver_lock);
+ }
+-
++#if defined(CONFIG_ETRAX_NO_PHY)
++static void
++dummy_check_duplex(struct net_device* dev)
++{
++ full_duplex = 1;
++}
++#else
+ static void
+ generic_check_duplex(struct net_device* dev)
+ {
+ unsigned long data;
++
+ data = e100_get_mdio_reg(dev, mdio_phy_addr, MII_ADVERTISE);
+ if ((data & ADVERTISE_10FULL) ||
+ (data & ADVERTISE_100FULL))
+@@ -943,6 +826,7 @@
+ tdk_check_duplex(struct net_device* dev)
+ {
+ unsigned long data;
++
+ data = e100_get_mdio_reg(dev, mdio_phy_addr, MDIO_TDK_DIAGNOSTIC_REG);
+ full_duplex = (data & MDIO_TDK_DIAGNOSTIC_DPLX) ? 1 : 0;
+ }
+@@ -951,6 +835,7 @@
+ broadcom_check_duplex(struct net_device* dev)
+ {
+ unsigned long data;
++
+ data = e100_get_mdio_reg(dev, mdio_phy_addr, MDIO_AUX_CTRL_STATUS_REG);
+ full_duplex = (data & MDIO_BC_FULL_DUPLEX_IND) ? 1 : 0;
+ }
+@@ -959,26 +844,35 @@
+ intel_check_duplex(struct net_device* dev)
+ {
+ unsigned long data;
++
+ data = e100_get_mdio_reg(dev, mdio_phy_addr, MDIO_INT_STATUS_REG_2);
+ full_duplex = (data & MDIO_INT_FULL_DUPLEX_IND) ? 1 : 0;
+ }
+-
++#endif
+ static void
+ e100_set_duplex(struct net_device* dev, enum duplex new_duplex)
+ {
++ struct net_local *np = netdev_priv(dev);
++
++ spin_lock(&np->transceiver_lock);
+ if (new_duplex != current_duplex) {
+ current_duplex = new_duplex;
+ e100_negotiate(dev);
+ }
++ spin_unlock(&np->transceiver_lock);
+ }
+
+ static int
+ e100_probe_transceiver(struct net_device* dev)
+ {
++#if !defined(CONFIG_ETRAX_NO_PHY)
+ unsigned int phyid_high;
+ unsigned int phyid_low;
+ unsigned int oui;
+ struct transceiver_ops* ops = NULL;
++ struct net_local *np = netdev_priv(dev);
++
++ spin_lock(&np->transceiver_lock);
+
+ /* Probe MDIO physical address */
+ for (mdio_phy_addr = 0; mdio_phy_addr <= 31; mdio_phy_addr++) {
+@@ -986,7 +880,7 @@
+ break;
+ }
+ if (mdio_phy_addr == 32)
+- return -ENODEV;
++ return -ENODEV;
+
+ /* Get manufacturer */
+ phyid_high = e100_get_mdio_reg(dev, mdio_phy_addr, MII_PHYSID1);
+@@ -999,6 +893,8 @@
+ }
+ transceiver = ops;
+
++ spin_unlock(&np->transceiver_lock);
++#endif
+ return 0;
+ }
+
+@@ -1006,7 +902,7 @@
+ e100_get_mdio_reg(struct net_device *dev, int phy_id, int location)
+ {
+ unsigned short cmd; /* Data to be sent on MDIO port */
+- int data; /* Data read from MDIO */
++ int data; /* Data read from MDIO */
+ int bitCounter;
+
+ /* Start of frame, OP Code, Physical Address, Register Address */
+@@ -1082,6 +978,7 @@
+ e100_receive_mdio_bit()
+ {
+ unsigned char bit;
++
+ *R_NETWORK_MGM_CTRL = 0;
+ bit = IO_EXTRACT(R_NETWORK_STAT, mdio, *R_NETWORK_STAT);
+ udelay(1);
+@@ -1117,7 +1014,7 @@
+ static void
+ e100_tx_timeout(struct net_device *dev)
+ {
+- struct net_local *np = (struct net_local *)dev->priv;
++ struct net_local *np = netdev_priv(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&np->lock, flags);
+@@ -1139,8 +1036,7 @@
+ e100_reset_transceiver(dev);
+
+ /* and get rid of the packets that never got an interrupt */
+- while (myFirstTxDesc != myNextTxDesc)
+- {
++ while (myFirstTxDesc != myNextTxDesc) {
+ dev_kfree_skb(myFirstTxDesc->skb);
+ myFirstTxDesc->skb = 0;
+ myFirstTxDesc = phys_to_virt(myFirstTxDesc->descr.next);
+@@ -1166,7 +1062,7 @@
+ static int
+ e100_send_packet(struct sk_buff *skb, struct net_device *dev)
+ {
+- struct net_local *np = (struct net_local *)dev->priv;
++ struct net_local *np = netdev_priv(dev);
+ unsigned char *buf = skb->data;
+ unsigned long flags;
+
+@@ -1179,7 +1075,7 @@
+
+ dev->trans_start = jiffies;
+
+- e100_hardware_send_packet(buf, skb->len);
++ e100_hardware_send_packet(np, buf, skb->len);
+
+ myNextTxDesc = phys_to_virt(myNextTxDesc->descr.next);
+
+@@ -1202,13 +1098,15 @@
+ e100rxtx_interrupt(int irq, void *dev_id)
+ {
+ struct net_device *dev = (struct net_device *)dev_id;
+- struct net_local *np = (struct net_local *)dev->priv;
+- unsigned long irqbits = *R_IRQ_MASK2_RD;
++ struct net_local *np = netdev_priv(dev);
++ unsigned long irqbits;
+
+- /* Disable RX/TX IRQs to avoid reentrancy */
+- *R_IRQ_MASK2_CLR =
+- IO_STATE(R_IRQ_MASK2_CLR, dma0_eop, clr) |
+- IO_STATE(R_IRQ_MASK2_CLR, dma1_eop, clr);
++ /*
++ * Note that both rx and tx interrupts are blocked at this point,
++ * regardless of which got us here.
++ */
++
++ irqbits = *R_IRQ_MASK2_RD;
+
+ /* Handle received packets */
+ if (irqbits & IO_STATE(R_IRQ_MASK2_RD, dma1_eop, active)) {
+@@ -1224,7 +1122,7 @@
+ * allocate a new buffer to put a packet in.
+ */
+ e100_rx(dev);
+- ((struct net_local *)dev->priv)->stats.rx_packets++;
++ np->stats.rx_packets++;
+ /* restart/continue on the channel, for safety */
+ *R_DMA_CH1_CMD = IO_STATE(R_DMA_CH1_CMD, cmd, restart);
+ /* clear dma channel 1 eop/descr irq bits */
+@@ -1239,8 +1137,7 @@
+
+ /* Report any packets that have been sent */
+ while (myFirstTxDesc != phys_to_virt(*R_DMA_CH0_FIRST) &&
+- myFirstTxDesc != myNextTxDesc)
+- {
++ (netif_queue_stopped(dev) || myFirstTxDesc != myNextTxDesc)) {
+ np->stats.tx_bytes += myFirstTxDesc->skb->len;
+ np->stats.tx_packets++;
+
+@@ -1249,19 +1146,15 @@
+ dev_kfree_skb_irq(myFirstTxDesc->skb);
+ myFirstTxDesc->skb = 0;
+ myFirstTxDesc = phys_to_virt(myFirstTxDesc->descr.next);
++ /* Wake up queue. */
++ netif_wake_queue(dev);
+ }
+
+ if (irqbits & IO_STATE(R_IRQ_MASK2_RD, dma0_eop, active)) {
+- /* acknowledge the eop interrupt and wake up queue */
++ /* acknowledge the eop interrupt. */
+ *R_DMA_CH0_CLR_INTR = IO_STATE(R_DMA_CH0_CLR_INTR, clr_eop, do);
+- netif_wake_queue(dev);
+ }
+
+- /* Enable RX/TX IRQs again */
+- *R_IRQ_MASK2_SET =
+- IO_STATE(R_IRQ_MASK2_SET, dma0_eop, set) |
+- IO_STATE(R_IRQ_MASK2_SET, dma1_eop, set);
+-
+ return IRQ_HANDLED;
+ }
+
+@@ -1269,7 +1162,7 @@
+ e100nw_interrupt(int irq, void *dev_id)
+ {
+ struct net_device *dev = (struct net_device *)dev_id;
+- struct net_local *np = (struct net_local *)dev->priv;
++ struct net_local *np = netdev_priv(dev);
+ unsigned long irqbits = *R_IRQ_MASK0_RD;
+
+ /* check for underrun irq */
+@@ -1291,7 +1184,6 @@
+ SETS(network_tr_ctrl_shadow, R_NETWORK_TR_CTRL, clr_error, clr);
+ *R_NETWORK_TR_CTRL = network_tr_ctrl_shadow;
+ SETS(network_tr_ctrl_shadow, R_NETWORK_TR_CTRL, clr_error, nop);
+- *R_NETWORK_TR_CTRL = IO_STATE(R_NETWORK_TR_CTRL, clr_error, clr);
+ np->stats.tx_errors++;
+ D(printk("ethernet excessive collisions!\n"));
+ }
+@@ -1304,12 +1196,13 @@
+ {
+ struct sk_buff *skb;
+ int length = 0;
+- struct net_local *np = (struct net_local *)dev->priv;
++ struct net_local *np = netdev_priv(dev);
+ unsigned char *skb_data_ptr;
+ #ifdef ETHDEBUG
+ int i;
+ #endif
+-
++ etrax_eth_descr *prevRxDesc; /* The descriptor right before myNextRxDesc */
++ spin_lock(&np->led_lock);
+ if (!led_active && time_after(jiffies, led_next_time)) {
+ /* light the network leds depending on the current speed. */
+ e100_set_network_leds(NETWORK_ACTIVITY);
+@@ -1319,9 +1212,10 @@
+ led_active = 1;
+ mod_timer(&clear_led_timer, jiffies + HZ/10);
+ }
++ spin_unlock(&np->led_lock);
+
+ length = myNextRxDesc->descr.hw_len - 4;
+- ((struct net_local *)dev->priv)->stats.rx_bytes += length;
++ np->stats.rx_bytes += length;
+
+ #ifdef ETHDEBUG
+ printk("Got a packet of length %d:\n", length);
+@@ -1341,7 +1235,7 @@
+ if (!skb) {
+ np->stats.rx_errors++;
+ printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", dev->name);
+- return;
++ goto update_nextrxdesc;
+ }
+
+ skb_put(skb, length - ETHER_HEAD_LEN); /* allocate room for the packet body */
+@@ -1358,15 +1252,15 @@
+ else {
+ /* Large packet, send directly to upper layers and allocate new
+ * memory (aligned to cache line boundary to avoid bug).
+- * Before sending the skb to upper layers we must make sure that
+- * skb->data points to the aligned start of the packet.
++ * Before sending the skb to upper layers we must make sure
++ * that skb->data points to the aligned start of the packet.
+ */
+ int align;
+ struct sk_buff *new_skb = dev_alloc_skb(MAX_MEDIA_DATA_SIZE + 2 * L1_CACHE_BYTES);
+ if (!new_skb) {
+ np->stats.rx_errors++;
+ printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", dev->name);
+- return;
++ goto update_nextrxdesc;
+ }
+ skb = myNextRxDesc->skb;
+ align = (int)phys_to_virt(myNextRxDesc->descr.buf) - (int)skb->data;
+@@ -1382,9 +1276,10 @@
+ /* Send the packet to the upper layers */
+ netif_rx(skb);
+
++ update_nextrxdesc:
+ /* Prepare for next packet */
+ myNextRxDesc->descr.status = 0;
+- myPrevRxDesc = myNextRxDesc;
++ prevRxDesc = myNextRxDesc;
+ myNextRxDesc = phys_to_virt(myNextRxDesc->descr.next);
+
+ rx_queue_len++;
+@@ -1392,9 +1287,9 @@
+ /* Check if descriptors should be returned */
+ if (rx_queue_len == RX_QUEUE_THRESHOLD) {
+ flush_etrax_cache();
+- myPrevRxDesc->descr.ctrl |= d_eol;
++ prevRxDesc->descr.ctrl |= d_eol;
+ myLastRxDesc->descr.ctrl &= ~d_eol;
+- myLastRxDesc = myPrevRxDesc;
++ myLastRxDesc = prevRxDesc;
+ rx_queue_len = 0;
+ }
+ }
+@@ -1403,7 +1298,7 @@
+ static int
+ e100_close(struct net_device *dev)
+ {
+- struct net_local *np = (struct net_local *)dev->priv;
++ struct net_local *np = netdev_priv(dev);
+
+ printk(KERN_INFO "Closing %s.\n", dev->name);
+
+@@ -1431,6 +1326,9 @@
+ free_irq(NETWORK_DMA_TX_IRQ_NBR, (void *)dev);
+ free_irq(NETWORK_STATUS_IRQ_NBR, (void *)dev);
+
++ cris_free_dma(NETWORK_TX_DMA_NBR, cardname);
++ cris_free_dma(NETWORK_RX_DMA_NBR, cardname);
++
+ /* Update the statistics here. */
+
+ update_rx_stats(&np->stats);
+@@ -1448,46 +1346,56 @@
+ {
+ struct mii_ioctl_data *data = if_mii(ifr);
+ struct net_local *np = netdev_priv(dev);
++ int ret = 0;
++ int old_autoneg;
+
+ spin_lock(&np->lock); /* Preempt protection */
+ switch (cmd) {
+- case SIOCGMIIPHY: /* Get PHY address */
++ case SIOCGMIIPHY: /* Get PHY address */
+ data->phy_id = mdio_phy_addr;
+ break;
+- case SIOCGMIIREG: /* Read MII register */
++ case SIOCGMIIREG: /* Read MII register */
+ data->val_out = e100_get_mdio_reg(dev, mdio_phy_addr, data->reg_num);
+ break;
+- case SIOCSMIIREG: /* Write MII register */
++ case SIOCSMIIREG: /* Write MII register */
+ e100_set_mdio_reg(dev, mdio_phy_addr, data->reg_num, data->val_in);
+ break;
++
+ /* The ioctls below should be considered obsolete but are */
+ /* still present for compatability with old scripts/apps */
+- case SET_ETH_SPEED_10: /* 10 Mbps */
++ case SET_ETH_SPEED_10: /* 10 Mbps */
+ e100_set_speed(dev, 10);
+ break;
+- case SET_ETH_SPEED_100: /* 100 Mbps */
++ case SET_ETH_SPEED_100: /* 100 Mbps */
+ e100_set_speed(dev, 100);
+ break;
+- case SET_ETH_SPEED_AUTO: /* Auto negotiate speed */
++ case SET_ETH_SPEED_AUTO: /* Auto-negotiate speed */
+ e100_set_speed(dev, 0);
+ break;
+- case SET_ETH_DUPLEX_HALF: /* Half duplex. */
++ case SET_ETH_DUPLEX_HALF: /* Half duplex */
+ e100_set_duplex(dev, half);
+ break;
+- case SET_ETH_DUPLEX_FULL: /* Full duplex. */
++ case SET_ETH_DUPLEX_FULL: /* Full duplex */
+ e100_set_duplex(dev, full);
+ break;
+- case SET_ETH_DUPLEX_AUTO: /* Autonegotiate duplex*/
++ case SET_ETH_DUPLEX_AUTO: /* Auto-negotiate duplex */
+ e100_set_duplex(dev, autoneg);
+ break;
++ case SET_ETH_AUTONEG:
++ old_autoneg = autoneg_normal;
++ autoneg_normal = *(int*)data;
++ if (autoneg_normal != old_autoneg)
++ e100_negotiate(dev);
++ break;
+ default:
++ spin_unlock(&np->lock);
+ return -EINVAL;
+ }
+ spin_unlock(&np->lock);
+- return 0;
++ return ret;
+ }
+
+-static int e100_set_settings(struct net_device *dev,
++static int e100_get_settings(struct net_device *dev,
+ struct ethtool_cmd *ecmd)
+ {
+ ecmd->supported = SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII |
+@@ -1565,7 +1473,8 @@
+ static int
+ e100_set_config(struct net_device *dev, struct ifmap *map)
+ {
+- struct net_local *np = (struct net_local *)dev->priv;
++ struct net_local *np = netdev_priv(dev);
++
+ spin_lock(&np->lock); /* Preempt protection */
+
+ switch(map->port) {
+@@ -1574,21 +1483,25 @@
+ e100_set_speed(dev, 0);
+ e100_set_duplex(dev, autoneg);
+ break;
++
+ case IF_PORT_10BASET:
+ e100_set_speed(dev, 10);
+ e100_set_duplex(dev, autoneg);
+ break;
++
+ case IF_PORT_100BASET:
+ case IF_PORT_100BASETX:
+ e100_set_speed(dev, 100);
+ e100_set_duplex(dev, autoneg);
+ break;
++
+ case IF_PORT_100BASEFX:
+ case IF_PORT_10BASE2:
+ case IF_PORT_AUI:
+ spin_unlock(&np->lock);
+ return -EOPNOTSUPP;
+ break;
++
+ default:
+ printk(KERN_ERR "%s: Invalid media selected", dev->name);
+ spin_unlock(&np->lock);
+@@ -1602,6 +1515,7 @@
+ update_rx_stats(struct net_device_stats *es)
+ {
+ unsigned long r = *R_REC_COUNTERS;
++
+ /* update stats relevant to reception errors */
+ es->rx_fifo_errors += IO_EXTRACT(R_REC_COUNTERS, congestion, r);
+ es->rx_crc_errors += IO_EXTRACT(R_REC_COUNTERS, crc_error, r);
+@@ -1613,11 +1527,11 @@
+ update_tx_stats(struct net_device_stats *es)
+ {
+ unsigned long r = *R_TR_COUNTERS;
++
+ /* update stats relevant to transmission errors */
+ es->collisions +=
+ IO_EXTRACT(R_TR_COUNTERS, single_col, r) +
+ IO_EXTRACT(R_TR_COUNTERS, multiple_col, r);
+- es->tx_errors += IO_EXTRACT(R_TR_COUNTERS, deferred, r);
+ }
+
+ /*
+@@ -1627,8 +1541,9 @@
+ static struct net_device_stats *
+ e100_get_stats(struct net_device *dev)
+ {
+- struct net_local *lp = (struct net_local *)dev->priv;
++ struct net_local *lp = netdev_priv(dev);
+ unsigned long flags;
++
+ spin_lock_irqsave(&lp->lock, flags);
+
+ update_rx_stats(&lp->stats);
+@@ -1640,21 +1555,21 @@
+
+ /*
+ * Set or clear the multicast filter for this adaptor.
+- * num_addrs == -1 Promiscuous mode, receive all packets
+- * num_addrs == 0 Normal mode, clear multicast list
+- * num_addrs > 0 Multicast mode, receive normal and MC packets,
+- * and do best-effort filtering.
++ * num_addrs == -1 Promiscuous mode, receive all packets
++ * num_addrs == 0 Normal mode, clear multicast list
++ * num_addrs > 0 Multicast mode, receive normal and MC packets,
++ * and do best-effort filtering.
+ */
+ static void
+ set_multicast_list(struct net_device *dev)
+ {
+- struct net_local *lp = (struct net_local *)dev->priv;
++ struct net_local *lp = netdev_priv(dev);
+ int num_addr = dev->mc_count;
+ unsigned long int lo_bits;
+ unsigned long int hi_bits;
++
+ spin_lock(&lp->lock);
+- if (dev->flags & IFF_PROMISC)
+- {
++ if (dev->flags & IFF_PROMISC) {
+ /* promiscuous mode */
+ lo_bits = 0xfffffffful;
+ hi_bits = 0xfffffffful;
+@@ -1684,9 +1599,10 @@
+ struct dev_mc_list *dmi = dev->mc_list;
+ int i;
+ char *baddr;
++
+ lo_bits = 0x00000000ul;
+ hi_bits = 0x00000000ul;
+- for (i=0; i<num_addr; i++) {
++ for (i = 0; i < num_addr; i++) {
+ /* Calculate the hash index for the GA registers */
+
+ hash_ix = 0;
+@@ -1713,8 +1629,7 @@
+
+ if (hash_ix >= 32) {
+ hi_bits |= (1 << (hash_ix-32));
+- }
+- else {
++ } else {
+ lo_bits |= (1 << hash_ix);
+ }
+ dmi = dmi->next;
+@@ -1729,10 +1644,11 @@
+ }
+
+ void
+-e100_hardware_send_packet(char *buf, int length)
++e100_hardware_send_packet(struct net_local *np, char *buf, int length)
+ {
+ D(printk("e100 send pack, buf 0x%x len %d\n", buf, length));
+
++ spin_lock(&np->led_lock);
+ if (!led_active && time_after(jiffies, led_next_time)) {
+ /* light the network leds depending on the current speed. */
+ e100_set_network_leds(NETWORK_ACTIVITY);
+@@ -1742,15 +1658,16 @@
+ led_active = 1;
+ mod_timer(&clear_led_timer, jiffies + HZ/10);
+ }
++ spin_unlock(&np->led_lock);
+
+ /* configure the tx dma descriptor */
+ myNextTxDesc->descr.sw_len = length;
+ myNextTxDesc->descr.ctrl = d_eop | d_eol | d_wait;
+ myNextTxDesc->descr.buf = virt_to_phys(buf);
+
+- /* Move end of list */
+- myLastTxDesc->descr.ctrl &= ~d_eol;
+- myLastTxDesc = myNextTxDesc;
++ /* Move end of list */
++ myLastTxDesc->descr.ctrl &= ~d_eol;
++ myLastTxDesc = myNextTxDesc;
+
+ /* Restart DMA channel */
+ *R_DMA_CH0_CMD = IO_STATE(R_DMA_CH0_CMD, cmd, restart);
+@@ -1759,6 +1676,11 @@
+ static void
+ e100_clear_network_leds(unsigned long dummy)
+ {
++ struct net_device *dev = (struct net_device *)dummy;
++ struct net_local *np = netdev_priv(dev);
++
++ spin_lock(&np->led_lock);
++
+ if (led_active && time_after(jiffies, led_next_time)) {
+ e100_set_network_leds(NO_NETWORK_ACTIVITY);
+
+@@ -1766,6 +1688,8 @@
+ led_next_time = jiffies + NET_FLASH_PAUSE;
+ led_active = 0;
+ }
++
++ spin_unlock(&np->led_lock);
+ }
+
+ static void
+@@ -1786,19 +1710,25 @@
+ #else
+ LED_NETWORK_SET(LED_OFF);
+ #endif
+- }
+- else if (light_leds) {
++ } else if (light_leds) {
+ if (current_speed == 10) {
+ LED_NETWORK_SET(LED_ORANGE);
+ } else {
+ LED_NETWORK_SET(LED_GREEN);
+ }
+- }
+- else {
++ } else {
+ LED_NETWORK_SET(LED_OFF);
+ }
+ }
+
++#ifdef CONFIG_NET_POLL_CONTROLLER
++static void
++e100_netpoll(struct net_device* netdev)
++{
++ e100rxtx_interrupt(NETWORK_DMA_TX_IRQ_NBR, netdev, NULL);
++}
++#endif
++
+ static int
+ etrax_init_module(void)
+ {
+diff -urN linux-2.6.19.2.orig/drivers/net/cris/eth_v32.c linux-2.6.19.2.dev/drivers/net/cris/eth_v32.c
+--- linux-2.6.19.2.orig/drivers/net/cris/eth_v32.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/drivers/net/cris/eth_v32.c 2007-02-06 11:10:37.000000000 +0100
+@@ -0,0 +1,2305 @@
++/*
++ * Driver for the ETRAX FS network controller.
++ *
++ * Copyright (c) 2003-2006 Axis Communications AB.
++ */
++
++#include <linux/module.h>
++
++#include <linux/kernel.h>
++#include <linux/sched.h>
++#include <linux/delay.h>
++#include <linux/types.h>
++#include <linux/fcntl.h>
++#include <linux/interrupt.h>
++#include <linux/ptrace.h>
++#include <linux/ioport.h>
++#include <linux/in.h>
++#include <linux/slab.h>
++#include <linux/string.h>
++#include <linux/spinlock.h>
++#include <linux/errno.h>
++#include <linux/init.h>
++#include <linux/cpufreq.h>
++
++#include <linux/netdevice.h>
++#include <linux/etherdevice.h>
++#include <linux/skbuff.h>
++#include <linux/ethtool.h>
++#include <linux/mii.h>
++
++#include <asm/io.h> /* LED_* I/O functions */
++#include <asm/irq.h>
++#include <asm/arch/hwregs/reg_map.h>
++#include <asm/arch/hwregs/reg_rdwr.h>
++#include <asm/arch/hwregs/dma.h>
++#include <asm/arch/hwregs/eth_defs.h>
++#include <asm/arch/hwregs/config_defs.h>
++#include <asm/arch/hwregs/intr_vect_defs.h>
++#include <asm/system.h>
++#include <asm/bitops.h>
++#include <asm/ethernet.h>
++#include <asm/arch/dma.h>
++#include <asm/arch/intmem.h>
++#include <asm/arch/pinmux.h>
++
++#include "eth_v32.h"
++
++#define DEBUG(x)
++#define GET_BIT(bit,val) (((val) >> (bit)) & 0x01)
++
++/* Toggle network LEDs on/off at runtime */
++static int use_network_leds = 1;
++
++static void update_rx_stats(struct crisv32_ethernet_local *np);
++static void update_tx_stats(struct crisv32_ethernet_local *np);
++static void crisv32_eth_setup_controller(struct net_device *dev);
++static int crisv32_eth_request_irqdma(struct net_device *dev);
++static void crisv32_eth_init_rings(struct net_device *dev);
++static void crisv32_eth_reset_rings(struct net_device *dev);
++static void crisv32_ethernet_bug(struct net_device *dev);
++
++/*
++ * The name of the card. Is used for messages and in the requests for
++ * io regions, irqs and dma channels.
++ */
++static const char *cardname = "ETRAX FS built-in ethernet controller";
++
++static int autoneg_normal = 1;
++
++/* Some chipset needs special care. */
++struct transceiver_ops transceivers[] = {
++ {0x1018, broadcom_check_speed, broadcom_check_duplex},
++ /* TDK 2120 and TDK 2120C */
++ {0xC039, tdk_check_speed, tdk_check_duplex},
++ {0x039C, tdk_check_speed, tdk_check_duplex},
++ /* Intel LXT972A*/
++ {0x04de, intel_check_speed, intel_check_duplex},
++ /* National Semiconductor DP83865 */
++ {0x0017, national_check_speed, national_check_duplex},
++ /* Generic, must be last. */
++ {0x0000, generic_check_speed, generic_check_duplex}
++};
++
++static struct net_device *crisv32_dev[2];
++static struct crisv32_eth_leds *crisv32_leds[3];
++
++#ifdef CONFIG_CPU_FREQ
++static int
++crisv32_ethernet_freq_notifier(struct notifier_block *nb, unsigned long val,
++ void *data);
++
++static struct notifier_block crisv32_ethernet_freq_notifier_block = {
++ .notifier_call = crisv32_ethernet_freq_notifier
++};
++#endif
++
++/*
++ * mask in and out tx/rx interrupts.
++ */
++static inline void crisv32_disable_tx_ints(struct crisv32_ethernet_local *np)
++{
++ reg_dma_rw_intr_mask intr_mask_tx = { .data = regk_dma_no };
++ REG_WR(dma, np->dma_out_inst, rw_intr_mask, intr_mask_tx);
++}
++
++static inline void crisv32_enable_tx_ints(struct crisv32_ethernet_local *np)
++{
++ reg_dma_rw_intr_mask intr_mask_tx = { .data = regk_dma_yes };
++ REG_WR(dma, np->dma_out_inst, rw_intr_mask, intr_mask_tx);
++}
++
++static inline void crisv32_disable_rx_ints(struct crisv32_ethernet_local *np)
++{
++ reg_dma_rw_intr_mask intr_mask_rx = { .in_eop = regk_dma_no };
++ REG_WR(dma, np->dma_in_inst, rw_intr_mask, intr_mask_rx);
++}
++
++static inline void crisv32_enable_rx_ints(struct crisv32_ethernet_local *np)
++{
++ reg_dma_rw_intr_mask intr_mask_rx = { .in_eop = regk_dma_yes };
++ REG_WR(dma, np->dma_in_inst, rw_intr_mask, intr_mask_rx);
++}
++
++/* start/stop receiver */
++static inline void crisv32_start_receiver(struct crisv32_ethernet_local *np)
++{
++ reg_eth_rw_rec_ctrl rec_ctrl;
++
++ rec_ctrl = REG_RD(eth, np->eth_inst, rw_rec_ctrl);
++ rec_ctrl.ma0 = regk_eth_yes;
++ rec_ctrl.broadcast = regk_eth_rec;
++ REG_WR(eth, np->eth_inst, rw_rec_ctrl, rec_ctrl);
++}
++
++static inline void crisv32_stop_receiver(struct crisv32_ethernet_local *np)
++{
++ reg_eth_rw_rec_ctrl rec_ctrl;
++
++ rec_ctrl = REG_RD(eth, np->eth_inst, rw_rec_ctrl);
++ rec_ctrl.ma0 = regk_eth_no;
++ rec_ctrl.broadcast = regk_eth_discard;
++ REG_WR(eth, np->eth_inst, rw_rec_ctrl, rec_ctrl);
++}
++
++static int __init
++crisv32_eth_request_irqdma(struct net_device *dev)
++{
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ /* Allocate IRQs and DMAs. */
++ if (np->eth_inst == regi_eth0) {
++ if (request_irq(DMA0_INTR_VECT, crisv32tx_eth_interrupt,
++ 0, cardname, dev)) {
++ return -EAGAIN;
++ }
++
++ if (request_irq(DMA1_INTR_VECT, crisv32rx_eth_interrupt,
++ IRQF_SAMPLE_RANDOM, cardname, dev)) {
++ goto err0_1;
++ }
++
++ if (crisv32_request_dma(0, cardname, DMA_VERBOSE_ON_ERROR,
++ 12500000, dma_eth0))
++ goto err0_2;
++
++ if (crisv32_request_dma(1, cardname, DMA_VERBOSE_ON_ERROR,
++ 12500000, dma_eth0))
++ goto err0_3;
++
++ if (request_irq(ETH0_INTR_VECT, crisv32nw_eth_interrupt, 0,
++ cardname, dev)) {
++ crisv32_free_dma(1);
++ err0_3:
++ crisv32_free_dma(0);
++ err0_2:
++ free_irq(DMA1_INTR_VECT, dev);
++ err0_1:
++ free_irq(DMA0_INTR_VECT, dev);
++ return -EAGAIN;
++ }
++ } else {
++ if (request_irq(DMA6_INTR_VECT, crisv32tx_eth_interrupt,
++ 0, cardname, dev))
++ return -EAGAIN;
++
++ if (request_irq(DMA7_INTR_VECT, crisv32rx_eth_interrupt,
++ IRQF_SAMPLE_RANDOM, cardname, dev))
++ goto err1_1;
++
++ if (crisv32_request_dma(6, cardname, DMA_VERBOSE_ON_ERROR,
++ 0, dma_eth1))
++ goto err1_2;
++
++ if (crisv32_request_dma(7, cardname, DMA_VERBOSE_ON_ERROR,
++ 0, dma_eth1))
++ goto err1_3;
++
++ if (request_irq(ETH1_INTR_VECT, crisv32nw_eth_interrupt, 0,
++ cardname, dev)) {
++ crisv32_free_dma(7);
++ err1_3:
++ crisv32_free_dma(6);
++ err1_2:
++ free_irq(DMA7_INTR_VECT, dev);
++ err1_1:
++ free_irq(DMA6_INTR_VECT, dev);
++ return -EAGAIN;
++ }
++ }
++ return 0;
++}
++
++static void __init
++crisv32_eth_setup_controller(struct net_device *dev)
++{
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ reg_config_rw_pad_ctrl pad_ctrl;
++
++ reg_eth_rw_tr_ctrl tr_ctrl = {
++ .retry = regk_eth_yes,
++ .pad = regk_eth_yes,
++ .crc = regk_eth_yes
++ };
++
++ reg_eth_rw_rec_ctrl rec_ctrl = {
++ .ma0 = regk_eth_no, /* enable at open() */
++ .broadcast = regk_eth_no,
++ .max_size = regk_eth_size1522
++ };
++
++ reg_eth_rw_ga_lo ga_lo = { 0 };
++ reg_eth_rw_ga_hi ga_hi = { 0 };
++
++ reg_eth_rw_gen_ctrl gen_ctrl = {
++ .phy = regk_eth_mii_clk,
++ .flow_ctrl = regk_eth_yes
++ };
++
++ /*
++ * Initialize group address registers to make sure that no
++ * unwanted addresses are matched.
++ */
++ REG_WR(eth, np->eth_inst, rw_ga_lo, ga_lo);
++ REG_WR(eth, np->eth_inst, rw_ga_hi, ga_hi);
++
++ /* Configure receiver and transmitter */
++ REG_WR(eth, np->eth_inst, rw_rec_ctrl, rec_ctrl);
++ REG_WR(eth, np->eth_inst, rw_tr_ctrl, tr_ctrl);
++
++ /* Enable ethernet controller with mii clk. */
++ REG_WR(eth, np->eth_inst, rw_gen_ctrl, gen_ctrl);
++ gen_ctrl.en = regk_eth_yes;
++ REG_WR(eth, np->eth_inst, rw_gen_ctrl, gen_ctrl);
++
++ /* keep reset low (RESET_LEN) */
++ udelay(500);
++
++ /* done */
++ pad_ctrl = REG_RD(config, regi_config, rw_pad_ctrl);
++ pad_ctrl.phyrst_n = 1;
++ REG_WR(config, regi_config, rw_pad_ctrl, pad_ctrl);
++
++ /* Let the PHY reset (RESET_WAIT) */
++ udelay(200);
++
++ crisv32_eth_probe_transceiver(dev);
++}
++
++static void __init
++crisv32_eth_init_rings(struct net_device *dev)
++{
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++ int i;
++
++ /* Initialise receive descriptors for interface. */
++ for (i = 0; i < NBR_RX_DESC; i++) {
++ struct sk_buff *skb = dev_alloc_skb(MAX_MEDIA_DATA_SIZE);
++
++ np->dma_rx_descr_list[i].skb = skb;
++ np->dma_rx_descr_list[i].descr.buf =
++ (char*)virt_to_phys(skb->data);
++ np->dma_rx_descr_list[i].descr.after =
++ (char*)virt_to_phys(skb->data + MAX_MEDIA_DATA_SIZE);
++
++ np->dma_rx_descr_list[i].descr.eol = 0;
++ np->dma_rx_descr_list[i].descr.in_eop = 0;
++ np->dma_rx_descr_list[i].descr.next =
++ (void *) virt_to_phys(&np->dma_rx_descr_list[i + 1].descr);
++ }
++ /* bend the list into a ring */
++ np->dma_rx_descr_list[NBR_RX_DESC - 1].descr.next =
++ (void *) virt_to_phys(&np->dma_rx_descr_list[0].descr);
++
++ /* Initialize transmit descriptors. */
++ for (i = 0; i < NBR_TX_DESC; i++) {
++ np->dma_tx_descr_list[i].descr.wait = 1;
++ np->dma_tx_descr_list[i].descr.eol = 0;
++ np->dma_tx_descr_list[i].descr.out_eop = 0;
++ np->dma_tx_descr_list[i].descr.next =
++ (void*)virt_to_phys(&np->dma_tx_descr_list[i+1].descr);
++ }
++ /* bend the list into a ring */
++ np->dma_tx_descr_list[NBR_TX_DESC - 1].descr.next =
++ (void *) virt_to_phys(&np->dma_tx_descr_list[0].descr);
++
++ crisv32_eth_reset_rings(dev);
++}
++
++static void
++crisv32_eth_reset_rings(struct net_device *dev)
++{
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++ int i;
++
++ /* free un-handled tx packets */
++ while(np->txpackets
++ || np->catch_tx_desc != np->active_tx_desc) {
++ np->txpackets--;
++ if (np->catch_tx_desc->skb)
++ dev_kfree_skb(np->catch_tx_desc->skb);
++
++ np->catch_tx_desc->skb = 0;
++ np->catch_tx_desc =
++ phys_to_virt((int)np->catch_tx_desc->descr.next);
++ } while (np->catch_tx_desc != np->active_tx_desc);
++ WARN_ON(np->txpackets != 0);
++ np->txpackets = 0;
++
++ /* cleanup the rx-ring */
++ for (i = 0; i < NBR_RX_DESC; i++) {
++ struct sk_buff *skb;
++ skb = np->dma_rx_descr_list[i].skb;
++ if (!skb
++ || (np->dma_rx_descr_list[i].descr.buf !=
++ (void *)virt_to_phys(skb->data)))
++ {
++ printk("%s:%d: damaged rx-ring! "
++ "i=%d skb=%p %lx %lx %p %p\n",
++ __func__, __LINE__, i,
++ skb,
++ virt_to_phys(skb->data),
++ virt_to_phys(skb->data + MAX_MEDIA_DATA_SIZE),
++ np->dma_rx_descr_list[i].descr.buf,
++ np->dma_rx_descr_list[i].descr.after);
++ WARN_ON(1);
++ crisv32_ethernet_bug(dev);
++ if (skb)
++ dev_kfree_skb(skb);
++ skb = dev_alloc_skb(MAX_MEDIA_DATA_SIZE);
++ np->dma_rx_descr_list[i].skb = skb;
++ np->dma_rx_descr_list[i].descr.buf =
++ (char*)virt_to_phys(skb->data);
++ }
++ np->dma_rx_descr_list[i].descr.after =
++ (char*)virt_to_phys(skb->data
++ + MAX_MEDIA_DATA_SIZE);
++ np->dma_rx_descr_list[i].descr.eol = 0;
++ np->dma_rx_descr_list[i].descr.in_eop = 0;
++ /* Workaround cache bug */
++ flush_dma_descr(&np->dma_rx_descr_list[i].descr, 1);
++ }
++
++ /* reset rx-ring */
++ np->active_rx_desc = &np->dma_rx_descr_list[0];
++ np->prev_rx_desc = &np->dma_rx_descr_list[NBR_RX_DESC - 1];
++ np->last_rx_desc = np->prev_rx_desc;
++ np->dma_rx_descr_list[NBR_RX_DESC - 1].descr.eol = 1;
++
++ /* reset tx-ring */
++ np->dma_tx_descr_list[0].descr.buf =
++ np->dma_tx_descr_list[0].descr.after = 0;
++ np->dma_rx_descr_list[i].descr.in_eop = 0;
++ np->dma_tx_descr_list[0].descr.eol = 1;
++
++ np->active_tx_desc = &np->dma_tx_descr_list[0];
++ np->prev_tx_desc = &np->dma_tx_descr_list[NBR_TX_DESC - 1];
++ np->catch_tx_desc = &np->dma_tx_descr_list[0];
++
++ /* Fill context descriptors. */
++ np->ctxt_in.next = 0;
++ np->ctxt_in.saved_data =
++ (void *)virt_to_phys(&np->active_rx_desc->descr);
++ np->ctxt_in.saved_data_buf = np->active_rx_desc->descr.buf;
++
++ np->ctxt_out.next = 0;
++ np->ctxt_out.saved_data =
++ (void *)virt_to_phys(&np->dma_tx_descr_list[0].descr);
++}
++
++static void __init
++crisv32_init_leds(int ledgrp, struct net_device* dev)
++{
++ struct timer_list timer_init = TIMER_INITIALIZER(NULL, 0, 0);
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ /* Use already allocated led grp if initialized */
++ if (crisv32_leds[ledgrp] != NULL) {
++ np->leds = crisv32_leds[ledgrp];
++ return;
++ }
++
++ crisv32_leds[ledgrp] = kmalloc(sizeof(struct crisv32_eth_leds),GFP_KERNEL);
++
++ crisv32_leds[ledgrp]->ledgrp = ledgrp;
++ crisv32_leds[ledgrp]->led_active = 0;
++ /* NOTE: Should this value be set to zero as the jiffies timer can wrap? */
++ crisv32_leds[ledgrp]->led_next_time = jiffies;
++
++ crisv32_leds[ledgrp]->clear_led_timer = timer_init;
++ crisv32_leds[ledgrp]->clear_led_timer.function = crisv32_clear_network_leds;
++ crisv32_leds[ledgrp]->clear_led_timer.data = (unsigned long) dev;
++
++ spin_lock_init(&crisv32_leds[ledgrp]->led_lock);
++
++ np->leds = crisv32_leds[ledgrp];
++}
++
++static int __init
++crisv32_ethernet_init(void)
++{
++ struct crisv32_ethernet_local *np;
++ int ret = 0;
++
++ printk("ETRAX FS 10/100MBit ethernet v0.01 (c)"
++ " 2003 Axis Communications AB\n");
++
++#ifdef CONFIG_ETRAX_ETHERNET_IFACE0
++{
++ int iface0 = 0;
++ /* Default MAC address for interface 0.
++ * The real one will be set later. */
++ static struct sockaddr default_mac_iface0 =
++ {0, {0x00, 0x40, 0x8C, 0xCD, 0x00, 0x00}};
++
++ if (!(crisv32_dev[iface0] = alloc_etherdev(sizeof *np)))
++ return -ENOMEM;
++
++ ret |= crisv32_ethernet_device_init(crisv32_dev[iface0]);
++
++#if defined(CONFIG_ETRAX_ETH0_USE_LEDGRP0)
++ crisv32_init_leds(LED_GRP_0,crisv32_dev[iface0]);
++#elif defined(CONFIG_ETRAX_ETH0_USE_LEDGRP1)
++ crisv32_init_leds(LED_GRP_1,crisv32_dev[iface0]);
++#else
++ crisv32_init_leds(LED_GRP_NONE,crisv32_dev[iface0]);
++#endif
++
++ np = (struct crisv32_ethernet_local *) crisv32_dev[iface0]->priv;
++ np->eth_inst = regi_eth0;
++ np->dma_out_inst = regi_dma0;
++ np->dma_in_inst = regi_dma1;
++
++ register_netdev(crisv32_dev[iface0]);
++
++ /* Set up default MAC address */
++ memcpy(crisv32_dev[iface0]->dev_addr, default_mac_iface0.sa_data, 6);
++ crisv32_eth_set_mac_address(crisv32_dev[iface0], &default_mac_iface0);
++ if (crisv32_eth_request_irqdma(crisv32_dev[iface0]))
++ printk("%s: eth0 unable to allocate IRQ and DMA resources\n",
++ __func__);
++ np->txpackets = 0;
++ crisv32_eth_init_rings(crisv32_dev[iface0]);
++ crisv32_eth_setup_controller(crisv32_dev[iface0]);
++}
++#endif /* CONFIG_ETRAX_ETHERNET_IFACE0 */
++
++#ifdef CONFIG_ETRAX_ETHERNET_IFACE1
++{
++ int iface1 = 0;
++ /* Default MAC address for interface 1.
++ * The real one will be set later. */
++ static struct sockaddr default_mac_iface1 =
++ {0, {0x00, 0x40, 0x8C, 0xCD, 0x00, 0x01}};
++
++ if (crisv32_pinmux_alloc_fixed(pinmux_eth1))
++ panic("Eth pinmux\n");
++
++ /* Increase index to device array if interface 0 is enabled as well.*/
++#ifdef CONFIG_ETRAX_ETHERNET_IFACE0
++ iface1++;
++#endif
++ if (!(crisv32_dev[iface1] = alloc_etherdev(sizeof *np)))
++ return -ENOMEM;
++
++ ret |= crisv32_ethernet_device_init(crisv32_dev[iface1]);
++
++#if defined(CONFIG_ETRAX_ETH1_USE_LEDGRP0)
++ crisv32_init_leds(LED_GRP_0,crisv32_dev[iface1]);
++#elif defined(CONFIG_ETRAX_ETH1_USE_LEDGRP1)
++ crisv32_init_leds(LED_GRP_1,crisv32_dev[iface1]);
++#else
++ crisv32_init_leds(LED_GRP_NONE,crisv32_dev[iface1]);
++#endif
++
++ np = (struct crisv32_ethernet_local *) crisv32_dev[iface1]->priv;
++ np->eth_inst = regi_eth1;
++ np->dma_out_inst = regi_dma6;
++ np->dma_in_inst = regi_dma7;
++
++ register_netdev(crisv32_dev[iface1]);
++
++ /* Set up default MAC address */
++ memcpy(crisv32_dev[iface1]->dev_addr, default_mac_iface1.sa_data, 6);
++ crisv32_eth_set_mac_address(crisv32_dev[iface1], &default_mac_iface1);
++
++ if (crisv32_eth_request_irqdma(crisv32_dev[iface1]))
++ printk("%s: eth1 unable to allocate IRQ and DMA resources\n",
++ __func__);
++ np->txpackets = 0;
++ crisv32_eth_init_rings(crisv32_dev[iface1]);
++ crisv32_eth_setup_controller(crisv32_dev[iface1]);
++}
++#endif /* CONFIG_ETRAX_ETHERNET_IFACE1 */
++
++#ifdef CONFIG_CPU_FREQ
++ cpufreq_register_notifier(&crisv32_ethernet_freq_notifier_block,
++ CPUFREQ_TRANSITION_NOTIFIER);
++#endif
++
++ return ret;
++}
++
++static int __init
++crisv32_ethernet_device_init(struct net_device* dev)
++{
++ struct timer_list timer_init = TIMER_INITIALIZER(NULL, 0, 0);
++ struct crisv32_ethernet_local *np;
++
++ dev->base_addr = 0; /* Just to have something to show. */
++
++ /* we do our own locking */
++ dev->features |= NETIF_F_LLTX;
++
++ /* We use several IRQs and DMAs so just report 0 here. */
++ dev->irq = 0;
++ dev->dma = 0;
++
++ /*
++ * Fill in our handlers so the network layer can talk to us in the
++ * future.
++ */
++ dev->open = crisv32_eth_open;
++ dev->hard_start_xmit = crisv32_eth_send_packet;
++ dev->stop = crisv32_eth_close;
++ dev->get_stats = crisv32_get_stats;
++ dev->set_multicast_list = crisv32_eth_set_multicast_list;
++ dev->set_mac_address = crisv32_eth_set_mac_address;
++ dev->ethtool_ops = &crisv32_ethtool_ops;
++ dev->do_ioctl = crisv32_eth_ioctl;
++ dev->set_config = crisv32_eth_set_config;
++ dev->tx_timeout = crisv32_eth_tx_timeout;
++#ifdef CONFIG_NET_POLL_CONTROLLER
++ dev->poll_controller = crisv32_netpoll;
++#endif
++
++ np = netdev_priv(dev);
++
++ spin_lock_init(&np->lock);
++ spin_lock_init(&np->transceiver_lock);
++
++ /* Initialize speed indicator stuff. */
++ np->current_speed = 10;
++ np->current_speed_selection = 0; /* Auto. */
++ np->speed_timer = timer_init;
++ np->speed_timer.expires = jiffies + NET_LINK_UP_CHECK_INTERVAL;
++ np->speed_timer.data = (unsigned long) dev;
++ np->speed_timer.function = crisv32_eth_check_speed;
++
++ np->full_duplex = 0;
++ np->current_duplex = autoneg;
++ np->duplex_timer = timer_init;
++ np->duplex_timer.expires = jiffies + NET_DUPLEX_CHECK_INTERVAL;
++ np->duplex_timer.data = (unsigned long) dev;
++ np->duplex_timer.function = crisv32_eth_check_duplex;
++
++ return 0;
++}
++
++static int
++crisv32_eth_open(struct net_device *dev)
++{
++ struct sockaddr mac_addr;
++ reg_dma_rw_ack_intr ack_intr = { .data = 1,.in_eop = 1 };
++ reg_dma_rw_cfg dma_cfg = { .en = 1 };
++ reg_eth_rw_clr_err clr_err = {.clr = regk_eth_yes};
++ int intr_mask_nw = 0x1cff;
++ int eth_ack_intr = 0xffff;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ spin_lock(&np->lock);
++#ifdef CONFIG_CRIS_MACH_ARTPEC3
++ np->gigabit_mode = 0;
++#endif
++ crisv32_disable_tx_ints(np);
++ crisv32_disable_rx_ints(np);
++
++ REG_WR(eth, np->eth_inst, rw_clr_err, clr_err);
++ REG_WR_INT(eth, np->eth_inst, rw_ack_intr, eth_ack_intr);
++ REG_WR_INT(eth, np->eth_inst, rw_intr_mask, intr_mask_nw);
++ crisv32_eth_reset_rings(dev);
++
++ /* Give the hardware an idea of what MAC address we want. */
++ memcpy(mac_addr.sa_data, dev->dev_addr, dev->addr_len);
++ crisv32_eth_set_mac_address(dev, &mac_addr);
++
++ /* Enable irq and make sure that the irqs are cleared. */
++ REG_WR(dma, np->dma_out_inst, rw_ack_intr, ack_intr);
++ REG_WR(dma, np->dma_in_inst, rw_ack_intr, ack_intr);
++
++ /* Prepare input DMA. */
++ DMA_RESET(np->dma_in_inst);
++ DMA_ENABLE(np->dma_in_inst);
++#ifdef CONFIG_CRIS_MACH_ARTPEC3
++ DMA_WR_CMD(np->dma_in_inst, regk_dma_set_w_size2);
++#endif
++ DMA_START_CONTEXT( np->dma_in_inst, virt_to_phys(&np->ctxt_in));
++ DMA_CONTINUE(np->dma_in_inst);
++ crisv32_enable_rx_ints(np);
++ crisv32_start_receiver(np);
++
++ /* Prepare output DMA. */
++#ifdef CONFIG_CRIS_MACH_ARTPEC3
++ DMA_WR_CMD(np->dma_out_inst, regk_dma_set_w_size4);
++#endif
++ REG_WR(dma, np->dma_out_inst, rw_cfg, dma_cfg);
++ netif_start_queue(dev);
++ crisv32_enable_tx_ints(np);
++
++ /* Start duplex/speed timers */
++ add_timer(&np->speed_timer);
++ add_timer(&np->duplex_timer);
++
++ spin_unlock(&np->lock);
++ /*
++ * We are now ready to accept transmit requeusts from the queueing
++ * layer of the networking.
++ */
++ netif_carrier_on(dev);
++
++ return 0;
++}
++
++static int
++crisv32_eth_close(struct net_device *dev)
++{
++ reg_dma_rw_ack_intr ack_intr = {0};
++
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++ unsigned long flags;
++
++ printk(KERN_INFO "Closing %s.\n", dev->name);
++
++ /* stop the receiver before the DMA channels to avoid overruns. */
++ crisv32_stop_receiver(np);
++
++ spin_lock_irqsave(&np->lock, flags);
++ netif_stop_queue(dev);
++
++ /* Reset the TX DMA in case it has hung on something. */
++ DMA_RESET(np->dma_in_inst);
++
++ /* Stop DMA */
++ DMA_STOP(np->dma_in_inst);
++ DMA_STOP(np->dma_out_inst);
++
++ /* Disable irq and make sure that the irqs are cleared. */
++ crisv32_disable_tx_ints(np);
++ ack_intr.data = 1;
++ REG_WR(dma, np->dma_out_inst, rw_ack_intr, ack_intr);
++
++ crisv32_disable_rx_ints(np);
++ ack_intr.in_eop = 1;
++ REG_WR(dma, np->dma_in_inst, rw_ack_intr, ack_intr);
++
++ np->sender_started = 0;
++ spin_unlock_irqrestore(&np->lock, flags);
++
++ /* Update the statistics. */
++ update_rx_stats(np);
++ update_tx_stats(np);
++
++ /* Stop speed/duplex timers */
++ del_timer(&np->speed_timer);
++ del_timer(&np->duplex_timer);
++
++ return 0;
++}
++
++static int
++crisv32_eth_set_mac_address(struct net_device *dev, void *vpntr)
++{
++ int i;
++ unsigned char *addr = ((struct sockaddr*)vpntr)->sa_data;
++
++ reg_eth_rw_ma0_lo ma0_lo =
++ { addr[0] | (addr[1] << 8) | (addr[2] << 16) | (addr[3] << 24)};
++
++ reg_eth_rw_ma0_hi ma0_hi = { addr[4] | (addr[5] << 8) };
++
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ /* Remember the address. */
++ memcpy(dev->dev_addr, addr, dev->addr_len);
++
++ /*
++ * Write the address to the hardware.
++ * Note the way the address is wrapped:
++ * ma0_l0 = a0_0 | (a0_1 << 8) | (a0_2 << 16) | (a0_3 << 24);
++ * ma0_hi = a0_4 | (a0_5 << 8);
++ */
++ REG_WR(eth, np->eth_inst, rw_ma0_lo, ma0_lo);
++ REG_WR(eth, np->eth_inst, rw_ma0_hi, ma0_hi);
++
++ printk(KERN_INFO "%s: changed MAC to ", dev->name);
++
++ for (i = 0; i < 5; i++)
++ printk("%02X:", dev->dev_addr[i]);
++
++ printk("%02X\n", dev->dev_addr[i]);
++
++ return 0;
++}
++
++static irqreturn_t
++crisv32rx_eth_interrupt(int irq, void *dev_id)
++{
++ reg_dma_r_masked_intr masked_in;
++ reg_dma_rw_cmd cmd = {0};
++ reg_dma_rw_ack_intr ack_intr = {0};
++ struct net_device *dev = (struct net_device *) dev_id;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ masked_in = REG_RD(dma, np->dma_in_inst, r_masked_intr);
++
++ if (masked_in.in_eop) {
++ DEBUG(printk("EOP_IN interrupt\n"));
++
++ /* Acknowledge input dma interrupt. */
++ ack_intr.in_eop = 1;
++ REG_WR(dma, np->dma_in_inst, rw_ack_intr, ack_intr);
++
++ np->new_rx_package = 1;
++ /* Check if complete packets were indeed received. */
++ while (np->active_rx_desc->descr.in_eop == 1
++ && np->new_rx_package) {
++ /*
++ * Take out the buffer and give it to the OS, then
++ * allocate a new buffer to put a packet in.
++ */
++ crisv32_eth_receive_packet(dev);
++
++ /* Update number of packets received. */
++ np->stats.rx_packets++;
++
++ /* Restarts input dma. */
++ cmd.cont_data = 1;
++ REG_WR(dma, np->dma_in_inst, rw_cmd, cmd);
++
++ /* Acknowledge input dma interrupt. */
++ REG_WR(dma, np->dma_in_inst, rw_ack_intr, ack_intr);
++ }
++ }
++ return IRQ_HANDLED;
++}
++
++static irqreturn_t
++crisv32tx_eth_interrupt(int irq, void *dev_id)
++{
++ reg_dma_rw_stat stat;
++ dma_descr_data *dma_pos;
++ reg_dma_rw_ack_intr ack_intr = { .data = 1 };
++ reg_dma_r_masked_intr masked_out;
++
++ struct net_device *dev = (struct net_device *) dev_id;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++ unsigned long flags;
++
++ masked_out = REG_RD(dma, np->dma_out_inst, r_masked_intr);
++
++ /* Get the current output dma position. */
++ stat = REG_RD(dma, np->dma_out_inst, rw_stat);
++ if (stat.list_state == regk_dma_data_at_eol)
++ dma_pos = &np->active_tx_desc->descr;
++ else
++ dma_pos = phys_to_virt(REG_RD_INT(dma, np->dma_out_inst,
++ rw_data));
++
++ /* ack the interrupt */
++ REG_WR(dma, np->dma_out_inst, rw_ack_intr, ack_intr);
++
++ /* protect against ethernet excessive-col interrupts */
++ spin_lock_irqsave(&np->lock, flags);
++
++ /* Take care of transmited dma descriptors and report sent packet. */
++ while (np->txpackets && ((&np->catch_tx_desc->descr != dma_pos)
++ || netif_queue_stopped(dev))) {
++ /* Update sent packet statistics. */
++ np->stats.tx_bytes += np->catch_tx_desc->skb->len;
++ np->stats.tx_packets++;
++
++ dev_kfree_skb_irq(np->catch_tx_desc->skb);
++ np->catch_tx_desc->skb = 0;
++ np->txpackets--;
++ np->catch_tx_desc =
++ phys_to_virt((int)np->catch_tx_desc->descr.next);
++#ifdef CONFIG_CRIS_MACH_ARTPEC3
++ if (np->gigabit_mode) {
++ np->intmem_tx_buf_catch->free = 1;
++ np->intmem_tx_buf_catch = np->intmem_tx_buf_catch->next;
++ }
++#endif
++ netif_wake_queue(dev);
++ }
++ spin_unlock_irqrestore(&np->lock, flags);
++ return IRQ_HANDLED;
++}
++
++
++/* Update receive errors. */
++static void
++update_rx_stats(struct crisv32_ethernet_local *np)
++{
++ reg_eth_rs_rec_cnt r;
++ reg_eth_rs_phy_cnt rp;
++
++ r = REG_RD(eth, np->eth_inst, rs_rec_cnt);
++ rp = REG_RD(eth, np->eth_inst, rs_phy_cnt);
++
++ np->stats.rx_fifo_errors += r.congestion;
++ np->stats.rx_crc_errors += r.crc_err;
++ np->stats.rx_frame_errors += r.align_err;
++ np->stats.rx_length_errors += r.oversize;
++}
++
++/* Update transmit errors. */
++static void
++update_tx_stats(struct crisv32_ethernet_local *np)
++{
++ reg_eth_rs_tr_cnt r;
++
++ r = REG_RD(eth, np->eth_inst, rs_tr_cnt);
++
++ np->stats.collisions += r.single_col + r.mult_col;
++ np->stats.tx_errors += r.deferred;
++}
++
++/* Get current statistics. */
++static struct net_device_stats *
++crisv32_get_stats(struct net_device *dev)
++{
++ unsigned long flags;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ spin_lock_irqsave(&np->lock, flags);
++
++ update_rx_stats(np);
++ update_tx_stats(np);
++
++ spin_unlock_irqrestore(&np->lock, flags);
++
++ return &np->stats;
++}
++
++/* Check for network errors. This acknowledge the received interrupt. */
++static irqreturn_t
++crisv32nw_eth_interrupt(int irq, void *dev_id)
++{
++ struct net_device *dev = (struct net_device *) dev_id;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++ reg_eth_r_masked_intr intr_mask;
++ int ack_intr = 0xffff;
++ reg_eth_rw_clr_err clr_err;
++
++ intr_mask = REG_RD(eth, np->eth_inst, r_masked_intr);
++
++ /*
++ * Check for underrun and/or excessive collisions. Note that the
++ * rw_clr_err register clears both underrun and excessive collision
++ * errors, so there's no need to check them separately.
++ */
++ if (np->sender_started
++ && (intr_mask.urun || intr_mask.exc_col)) {
++ unsigned long flags;
++ dma_descr_data *dma_pos;
++ reg_dma_rw_stat stat;
++
++ /* Get the current output dma position. */
++ stat = REG_RD(dma, np->dma_out_inst, rw_stat);
++ if (stat.list_state == regk_dma_data_at_eol)
++ dma_pos = &np->active_tx_desc->descr;
++ else
++ dma_pos = phys_to_virt(REG_RD_INT(dma,
++ np->dma_out_inst,
++ rw_data));
++
++ /*
++ * Protect against the tx-interrupt messing with
++ * the tx-ring.
++ */
++ spin_lock_irqsave(&np->lock, flags);
++ /*
++ * If we have more than one packet in the tx-ring
++ * drop one and move ahead. Upper layers rely on
++ * packeloss when doing congestion control.
++ */
++ if (intr_mask.exc_col && np->txpackets > 1) {
++ dev_kfree_skb_irq(np->catch_tx_desc->skb);
++ np->catch_tx_desc->skb = 0;
++ np->catch_tx_desc =
++ phys_to_virt((int)
++ np->catch_tx_desc->descr.next);
++ np->txpackets--;
++ netif_wake_queue(dev);
++ }
++ np->ctxt_out.next = 0;
++ if (np->txpackets) {
++ np->ctxt_out.saved_data = (void *)
++ virt_to_phys(&np->catch_tx_desc->descr);
++ np->ctxt_out.saved_data_buf =
++ np->catch_tx_desc->descr.buf;
++
++ /* restart the DMA */
++ DMA_START_CONTEXT(np->dma_out_inst,
++ (int) virt_to_phys(&np->ctxt_out));
++ }
++ else {
++ /* let the next packet restart the DMA */
++ np->ctxt_out.saved_data = (void *)
++ virt_to_phys(&np->active_tx_desc->descr);
++ np->sender_started = 0;
++ }
++
++ spin_unlock_irqrestore(&np->lock, flags);
++ np->stats.tx_errors++;
++ }
++
++ REG_WR_INT(eth, np->eth_inst, rw_ack_intr, ack_intr);
++ clr_err.clr = 1;
++ REG_WR(eth, np->eth_inst, rw_clr_err, clr_err);
++
++ update_rx_stats(np);
++ update_tx_stats(np);
++
++ return IRQ_HANDLED;
++}
++
++/* We have a good packet(s), get it/them out of the buffers. */
++static void
++crisv32_eth_receive_packet(struct net_device *dev)
++{
++ int length;
++ struct sk_buff *skb;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++ struct sk_buff *tmp;
++ unsigned long flags;
++
++ DEBUG(printk("crisv32_receive_packet\n"));
++
++ /* Activate LED */
++ spin_lock_irqsave(&np->leds->led_lock, flags);
++ if (!np->leds->led_active && time_after(jiffies, np->leds->led_next_time)) {
++ /* light the network leds depending on the current speed. */
++ crisv32_set_network_leds(LED_ACTIVITY, dev);
++
++ /* Set the earliest time we may clear the LED */
++ np->leds->led_next_time = jiffies + NET_FLASH_TIME;
++ np->leds->led_active = 1;
++ np->leds->clear_led_timer.data = (unsigned long) dev;
++ mod_timer(&np->leds->clear_led_timer, jiffies + HZ/10);
++ }
++ spin_unlock_irqrestore(&np->leds->led_lock, flags);
++
++ /* Discard CRC (4 bytes). */
++ length = (np->active_rx_desc->descr.after) -
++ (np->active_rx_desc->descr.buf) - 4;
++
++ /* Update received packet statistics. */
++ np->stats.rx_bytes += length;
++
++ if (np->active_rx_desc != np->last_rx_desc) {
++#ifdef CONFIG_CRIS_MACH_ARTPEC3
++ if (np->gigabit_mode) {
++ skb = dev_alloc_skb(length);
++ if(!skb) {
++ np->stats.rx_errors++;
++ printk(KERN_NOTICE "%s: memory squeeze,"
++ " dropping packet.", dev->name);
++ return;
++ }
++ /* Allocate room for the packet body. */
++ skb_put(skb, length - ETHER_HEAD_LEN);
++ /* Allocate room for the header and copy the data to
++ * the SKB */
++ memcpy(skb_push(skb, ETHER_HEAD_LEN),
++ crisv32_intmem_phys_to_virt((unsigned long)np->active_rx_desc->descr.buf), length);
++ skb->dev = dev;
++ skb->protocol = eth_type_trans(skb, dev);
++ skb->ip_summed = CHECKSUM_NONE;
++ /* Send the packet to the upper layer. */
++ netif_rx(skb);
++ np->last_rx_desc =
++ (void *) phys_to_virt(np->last_rx_desc->descr.next);
++ } else {
++#endif
++ tmp = dev_alloc_skb(MAX_MEDIA_DATA_SIZE);
++ if (!tmp) {
++ np->stats.rx_errors++;
++ printk(KERN_NOTICE "%s: memory squeeze,"
++ " dropping packet.",
++ dev->name);
++ return;
++ }
++ skb = np->active_rx_desc->skb;
++ np->active_rx_desc->skb = tmp;
++ skb_put(skb, length);
++
++ np->active_rx_desc->descr.buf =
++ (void *) virt_to_phys(np->active_rx_desc->skb->data);
++ np->active_rx_desc->descr.after =
++ np->active_rx_desc->descr.buf + MAX_MEDIA_DATA_SIZE;
++
++ skb->dev = dev;
++ skb->protocol = eth_type_trans(skb, dev);
++ skb->ip_summed = CHECKSUM_NONE;
++
++ /* Send the packet to the upper layer. */
++ netif_rx(skb);
++ np->last_rx_desc =
++ phys_to_virt((int)
++ np->last_rx_desc->descr.next);
++ }
++#ifdef CONFIG_CRIS_MACH_ARTPEC3
++ }
++#endif
++ /*
++ * When the input DMA reaches eol precaution must be taken, otherwise
++ * the DMA could stop. The problem occurs if the eol flag is re-placed
++ * on the descriptor that the DMA stands on before the DMA proceed to
++ * the next descriptor. This case could, for example, happen if there
++ * is a traffic burst and then the network goes silent. To prevent this
++ * we make sure that we do not set the eol flag on the descriptor that
++ * the DMA stands on.
++ */
++ if(virt_to_phys(&np->active_rx_desc->descr) !=
++ REG_RD_INT(dma, np->dma_in_inst, rw_saved_data)) {
++ np->active_rx_desc->descr.after =
++ np->active_rx_desc->descr.buf + MAX_MEDIA_DATA_SIZE;
++ np->active_rx_desc->descr.eol = 1;
++ np->active_rx_desc->descr.in_eop = 0;
++ np->active_rx_desc =
++ phys_to_virt((int)np->active_rx_desc->descr.next);
++ barrier();
++ np->prev_rx_desc->descr.eol = 0;
++ flush_dma_descr(&np->prev_rx_desc->descr, 0); // Workaround cache bug
++ np->prev_rx_desc =
++ phys_to_virt((int)np->prev_rx_desc->descr.next);
++ flush_dma_descr(&np->prev_rx_desc->descr, 1); // Workaround cache bug
++ } else {
++ np->new_rx_package = 0;
++ }
++}
++
++/*
++ * This function (i.e. hard_start_xmit) is protected from concurent calls by a
++ * spinlock (xmit_lock) in the net_device structure.
++ */
++static int
++crisv32_eth_send_packet(struct sk_buff *skb, struct net_device *dev)
++{
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++ unsigned char *buf = skb->data;
++ unsigned long flags;
++
++ dev->trans_start = jiffies;
++
++ spin_lock_irqsave(&np->leds->led_lock, flags);
++ if (!np->leds->led_active && time_after(jiffies, np->leds->led_next_time)) {
++ /* light the network leds depending on the current speed. */
++ crisv32_set_network_leds(LED_ACTIVITY, dev);
++
++ /* Set the earliest time we may clear the LED */
++ np->leds->led_next_time = jiffies + NET_FLASH_TIME;
++ np->leds->led_active = 1;
++ np->leds->clear_led_timer.data = (unsigned long) dev;
++ mod_timer(&np->leds->clear_led_timer, jiffies + HZ/10);
++ }
++ spin_unlock_irqrestore(&np->leds->led_lock, flags);
++
++ /*
++ * Need to disable irq to avoid updating pointer in interrupt while
++ * sending packets.
++ */
++ spin_lock_irqsave(&np->lock, flags);
++
++ np->active_tx_desc->skb = skb;
++#ifdef CONFIG_CRIS_MACH_ARTPEC3
++ if (np->gigabit_mode) {
++ if(np->intmem_tx_buf_active->free) {
++ memcpy(np->intmem_tx_buf_active->buf,
++ skb->data, skb->len);
++ np->intmem_tx_buf_active->free = 0;
++ crisv32_eth_hw_send_packet(
++ np->intmem_tx_buf_active->buf, skb->len, np);
++ np->intmem_tx_buf_active =
++ np->intmem_tx_buf_active->next;
++ } else {
++ printk("%s: Internal tx memory buffer not free!\n\r",
++ __FILE__);
++ spin_unlock_irqrestore(&np->lock, flags);
++ return 1;
++ }
++ }
++ else
++#endif
++ {
++ crisv32_eth_hw_send_packet(buf, skb->len, np);
++ }
++ /* Stop queue if full. */
++ if (np->active_tx_desc == np->catch_tx_desc)
++ netif_stop_queue(dev);
++
++ np->txpackets++;
++ spin_unlock_irqrestore(&np->lock, flags);
++
++ return 0;
++}
++
++
++static void
++crisv32_eth_hw_send_packet(unsigned char *buf, int length, void *priv)
++{
++ struct crisv32_ethernet_local *np =
++ (struct crisv32_ethernet_local *) priv;
++
++ /* Configure the tx dma descriptor. */
++#ifdef CONFIG_CRIS_MACH_ARTPEC3
++ if (np->gigabit_mode) {
++ np->active_tx_desc->descr.buf = (unsigned char *) crisv32_intmem_virt_to_phys(buf);
++ } else
++#endif
++ {
++ np->active_tx_desc->descr.buf = (unsigned char *) virt_to_phys(buf);
++ }
++
++ np->active_tx_desc->descr.after = np->active_tx_desc->descr.buf +
++ length;
++ np->active_tx_desc->descr.intr = 1;
++ np->active_tx_desc->descr.out_eop = 1;
++
++ /* Move eol. */
++ np->active_tx_desc->descr.eol = 1;
++ np->prev_tx_desc->descr.eol = 0;
++
++
++ /* Update pointers. */
++ np->prev_tx_desc = np->active_tx_desc;
++ np->active_tx_desc = phys_to_virt((int)np->active_tx_desc->descr.next);
++
++ /* Start DMA. */
++ crisv32_start_dma_out(np);
++}
++
++static void
++crisv32_start_dma_out(struct crisv32_ethernet_local* np)
++{
++ if (!np->sender_started) {
++ /* Start DMA for the first time. */
++ np->ctxt_out.saved_data_buf = np->prev_tx_desc->descr.buf;
++ REG_WR(dma, np->dma_out_inst, rw_group_down,
++ (int) virt_to_phys(&np->ctxt_out));
++ DMA_WR_CMD(np->dma_out_inst, regk_dma_load_c);
++ DMA_WR_CMD(np->dma_out_inst, regk_dma_load_d | regk_dma_burst);
++ np->sender_started = 1;
++ } else {
++ DMA_CONTINUE_DATA(np->dma_out_inst);
++ }
++}
++
++/*
++ * Called by upper layers if they decide it took too long to complete sending
++ * a packet - we need to reset and stuff.
++ */
++static void
++crisv32_eth_tx_timeout(struct net_device *dev)
++{
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++ reg_dma_rw_cfg cfg = {0};
++ reg_dma_rw_stat stat = {0};
++ unsigned long flags;
++
++ printk(KERN_WARNING "%s: transmit timed out\n", dev->name);
++
++
++ spin_lock_irqsave(&np->lock, flags);
++ crisv32_ethernet_bug(dev);
++
++ np->txpackets = 0;
++ /* Update error stats. */
++ np->stats.tx_errors++;
++
++ /* Reset the TX DMA in case it has hung on something. */
++ cfg.en = 0;
++ REG_WR(dma, np->dma_out_inst, rw_cfg, cfg);
++
++ do {
++ stat = REG_RD(dma, np->dma_out_inst, rw_stat);
++ } while (stat.mode != regk_dma_rst);
++
++ /* Reset the tranceiver. */
++ crisv32_eth_reset_tranceiver(dev);
++
++ /* Get rid of the packets that never got an interrupt. */
++ do {
++ if (np->catch_tx_desc->skb)
++ dev_kfree_skb(np->catch_tx_desc->skb);
++
++ np->catch_tx_desc->skb = 0;
++ np->catch_tx_desc =
++ phys_to_virt((int)np->catch_tx_desc->descr.next);
++ } while (np->catch_tx_desc != np->active_tx_desc);
++
++
++ /* Start output DMA. */
++ REG_WR(dma, np->dma_out_inst, rw_group_down,
++ (int) virt_to_phys(&np->ctxt_out));
++ DMA_WR_CMD(np->dma_out_inst, regk_dma_load_c);
++ DMA_WR_CMD(np->dma_out_inst, regk_dma_load_d | regk_dma_burst);
++ spin_unlock_irqrestore(&np->lock, flags);
++
++ /* Tell the upper layers we're ok again. */
++ netif_wake_queue(dev);
++}
++
++/*
++ * Set or clear the multicast filter for this adaptor.
++ * num_addrs == -1 Promiscuous mode, receive all packets
++ * num_addrs == 0 Normal mode, clear multicast list
++ * num_addrs > 0 Multicast mode, receive normal and MC packets,
++ * and do best-effort filtering.
++ */
++static void
++crisv32_eth_set_multicast_list(struct net_device *dev)
++{
++ int num_addr = dev->mc_count;
++ unsigned long int lo_bits;
++ unsigned long int hi_bits;
++ reg_eth_rw_rec_ctrl rec_ctrl = {0};
++ reg_eth_rw_ga_lo ga_lo = {0};
++ reg_eth_rw_ga_hi ga_hi = {0};
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ if (dev->flags & IFF_PROMISC) {
++ /* Promiscuous mode. */
++ lo_bits = 0xfffffffful;
++ hi_bits = 0xfffffffful;
++
++ /* Enable individual receive. */
++ rec_ctrl = (reg_eth_rw_rec_ctrl) REG_RD(eth, np->eth_inst,
++ rw_rec_ctrl);
++ rec_ctrl.individual = regk_eth_yes;
++ REG_WR(eth, np->eth_inst, rw_rec_ctrl, rec_ctrl);
++ } else if (dev->flags & IFF_ALLMULTI) {
++ /* Enable all multicasts. */
++ lo_bits = 0xfffffffful;
++ hi_bits = 0xfffffffful;
++
++ /* Disable individual receive */
++ rec_ctrl =
++ (reg_eth_rw_rec_ctrl) REG_RD(eth, np->eth_inst, rw_rec_ctrl);
++ rec_ctrl.individual = regk_eth_no;
++ REG_WR(eth, np->eth_inst, rw_rec_ctrl, rec_ctrl);
++ } else if (num_addr == 0) {
++ /* Normal, clear the mc list. */
++ lo_bits = 0x00000000ul;
++ hi_bits = 0x00000000ul;
++
++ /* Disable individual receive */
++ rec_ctrl =
++ (reg_eth_rw_rec_ctrl) REG_RD(eth, np->eth_inst, rw_rec_ctrl);
++ rec_ctrl.individual = regk_eth_no;
++ REG_WR(eth, np->eth_inst, rw_rec_ctrl, rec_ctrl);
++ } else {
++ /* MC mode, receive normal and MC packets. */
++ char hash_ix;
++ struct dev_mc_list *dmi = dev->mc_list;
++ int i;
++ char *baddr;
++ lo_bits = 0x00000000ul;
++ hi_bits = 0x00000000ul;
++
++ for (i = 0; i < num_addr; i++) {
++ /* Calculate the hash index for the GA registers. */
++ hash_ix = 0;
++ baddr = dmi->dmi_addr;
++ hash_ix ^= (*baddr) & 0x3f;
++ hash_ix ^= ((*baddr) >> 6) & 0x03;
++ ++baddr;
++ hash_ix ^= ((*baddr) << 2) & 0x03c;
++ hash_ix ^= ((*baddr) >> 4) & 0xf;
++ ++baddr;
++ hash_ix ^= ((*baddr) << 4) & 0x30;
++ hash_ix ^= ((*baddr) >> 2) & 0x3f;
++ ++baddr;
++ hash_ix ^= (*baddr) & 0x3f;
++ hash_ix ^= ((*baddr) >> 6) & 0x03;
++ ++baddr;
++ hash_ix ^= ((*baddr) << 2) & 0x03c;
++ hash_ix ^= ((*baddr) >> 4) & 0xf;
++ ++baddr;
++ hash_ix ^= ((*baddr) << 4) & 0x30;
++ hash_ix ^= ((*baddr) >> 2) & 0x3f;
++
++ hash_ix &= 0x3f;
++
++ if (hash_ix > 32)
++ hi_bits |= (1 << (hash_ix - 32));
++ else
++ lo_bits |= (1 << hash_ix);
++
++ dmi = dmi->next;
++ }
++
++ /* Disable individual receive. */
++ rec_ctrl =
++ (reg_eth_rw_rec_ctrl) REG_RD(eth, np->eth_inst, rw_rec_ctrl);
++ rec_ctrl.individual = regk_eth_no;
++ REG_WR(eth, np->eth_inst, rw_rec_ctrl, rec_ctrl);
++ }
++
++ ga_lo.tbl = (unsigned int) lo_bits;
++ ga_hi.tbl = (unsigned int) hi_bits;
++
++ REG_WR(eth, np->eth_inst, rw_ga_lo, ga_lo);
++ REG_WR(eth, np->eth_inst, rw_ga_hi, ga_hi);
++}
++
++static int
++crisv32_eth_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
++{
++ struct mii_ioctl_data *data = if_mii(ifr);
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++ int old_autoneg;
++
++ spin_lock(&np->lock); /* Preempt protection */
++ switch (cmd) {
++ case SIOCGMIIPHY: /* Get PHY address */
++ data->phy_id = np->mdio_phy_addr;
++ break;
++ case SIOCGMIIREG: /* Read MII register */
++ data->val_out = crisv32_eth_get_mdio_reg(dev,
++ data->reg_num);
++ break;
++ case SIOCSMIIREG: /* Write MII register */
++ crisv32_eth_set_mdio_reg(dev, data->reg_num,
++ data->val_in);
++ break;
++ case SET_ETH_ENABLE_LEDS:
++ use_network_leds = 1;
++ break;
++ case SET_ETH_DISABLE_LEDS:
++ use_network_leds = 0;
++ break;
++ case SET_ETH_AUTONEG:
++ old_autoneg = autoneg_normal;
++ autoneg_normal = *(int*)data;
++ if (autoneg_normal != old_autoneg)
++ crisv32_eth_negotiate(dev);
++ break;
++ default:
++ spin_unlock(&np->lock); /* Preempt protection */
++ return -EINVAL;
++ }
++ spin_unlock(&np->lock);
++ return 0;
++}
++
++static int crisv32_eth_get_settings(struct net_device *dev,
++ struct ethtool_cmd *ecmd)
++{
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++ /* What about GMII and 1000xpause? not included in ethtool.h */
++ ecmd->supported = SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII |
++ SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
++ SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full;
++#ifdef CONFIG_CRIS_MACH_ARTPEC3
++ ecmd->supported |= SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full;
++#endif
++ ecmd->port = PORT_TP;
++ ecmd->transceiver = XCVR_EXTERNAL;
++ ecmd->phy_address = np->mdio_phy_addr;
++ ecmd->speed = np->current_speed;
++ ecmd->duplex = np->full_duplex;
++ ecmd->advertising = ADVERTISED_TP;
++
++ if (np->current_duplex == autoneg && np->current_speed_selection == 0)
++ ecmd->advertising |= ADVERTISED_Autoneg;
++ else {
++ ecmd->advertising |=
++ ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
++ ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full;
++#ifdef CONFIG_CRIS_MACH_ARTPEC3
++ ecmd->advertising |= ADVERTISED_1000baseT_Half |
++ ADVERTISED_1000baseT_Full;
++#endif
++ if (np->current_speed_selection == 10)
++ ecmd->advertising &= ~(ADVERTISED_100baseT_Half |
++ ADVERTISED_100baseT_Full |
++ ADVERTISED_1000baseT_Half |
++ ADVERTISED_1000baseT_Full);
++
++ else if (np->current_speed_selection == 100)
++ ecmd->advertising &= ~(ADVERTISED_10baseT_Half |
++ ADVERTISED_10baseT_Full |
++ ADVERTISED_1000baseT_Half |
++ ADVERTISED_1000baseT_Full);
++
++ else if (np->current_speed_selection == 1000)
++ ecmd->advertising &= ~(ADVERTISED_10baseT_Half |
++ ADVERTISED_10baseT_Full |
++ ADVERTISED_100baseT_Half |
++ ADVERTISED_100baseT_Full);
++
++ if (np->current_duplex == half)
++ ecmd->advertising &= ~(ADVERTISED_10baseT_Full |
++ ADVERTISED_100baseT_Full |
++ ADVERTISED_1000baseT_Full);
++ else if (np->current_duplex == full)
++ ecmd->advertising &= ~(ADVERTISED_10baseT_Half |
++ ADVERTISED_100baseT_Half |
++ ADVERTISED_1000baseT_Half);
++ }
++
++ ecmd->autoneg = AUTONEG_ENABLE;
++ return 0;
++}
++
++static int crisv32_eth_set_settings(struct net_device *dev,
++ struct ethtool_cmd *ecmd)
++{
++ if (ecmd->autoneg == AUTONEG_ENABLE) {
++ crisv32_eth_set_duplex(dev, autoneg);
++ crisv32_eth_set_speed(dev, 0);
++ } else {
++ crisv32_eth_set_duplex(dev, ecmd->duplex);
++ crisv32_eth_set_speed(dev, ecmd->speed);
++ }
++
++ return 0;
++}
++
++static void crisv32_eth_get_drvinfo(struct net_device *dev,
++ struct ethtool_drvinfo *info)
++{
++ strncpy(info->driver, "ETRAX FS", sizeof(info->driver) - 1);
++ strncpy(info->version, "$Revision: 1.96 $", sizeof(info->version) - 1);
++ strncpy(info->fw_version, "N/A", sizeof(info->fw_version) - 1);
++ strncpy(info->bus_info, "N/A", sizeof(info->bus_info) - 1);
++}
++
++static int crisv32_eth_nway_reset(struct net_device *dev)
++{
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ if (np->current_duplex == autoneg && np->current_speed_selection == 0)
++ crisv32_eth_negotiate(dev);
++ return 0;
++}
++
++static struct ethtool_ops crisv32_ethtool_ops = {
++ .get_settings = crisv32_eth_get_settings,
++ .set_settings = crisv32_eth_set_settings,
++ .get_drvinfo = crisv32_eth_get_drvinfo,
++ .nway_reset = crisv32_eth_nway_reset,
++ .get_link = ethtool_op_get_link,
++};
++
++/* Is this function really needed? Use ethtool instead? */
++static int
++crisv32_eth_set_config(struct net_device *dev, struct ifmap *map)
++{
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ spin_lock(&np->lock); /* Preempt protection */
++
++ switch(map->port) {
++ case IF_PORT_UNKNOWN:
++ /* Use autoneg */
++ crisv32_eth_set_speed(dev, 0);
++ crisv32_eth_set_duplex(dev, autoneg);
++ break;
++ case IF_PORT_10BASET:
++ crisv32_eth_set_speed(dev, 10);
++ crisv32_eth_set_duplex(dev, autoneg);
++ break;
++ case IF_PORT_100BASET:
++ case IF_PORT_100BASETX:
++ crisv32_eth_set_speed(dev, 100);
++ crisv32_eth_set_duplex(dev, autoneg);
++ break;
++ case IF_PORT_100BASEFX:
++ case IF_PORT_10BASE2:
++ case IF_PORT_AUI:
++ spin_unlock(&np->lock);
++ return -EOPNOTSUPP;
++ break;
++ default:
++ printk(KERN_ERR "%s: Invalid media selected",
++ dev->name);
++ spin_unlock(&np->lock);
++ return -EINVAL;
++ }
++ spin_unlock(&np->lock);
++ return 0;
++}
++
++#ifdef CONFIG_CRIS_MACH_ARTPEC3
++/*
++ * Switch the behaviour of the tx and rx buffers using
++ * external or internal memory. Usage of the internal
++ * memory is required for gigabit operation.
++ */
++static void
++crisv32_eth_switch_intmem_usage(struct net_device *dev)
++{
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ int i;
++ reg_dma_rw_stat stat;
++ reg_dma_rw_cfg cfg = {0};
++ reg_dma_rw_intr_mask intr_mask_in = { .in_eop = regk_dma_yes };
++ reg_dma_rw_ack_intr ack_intr = { .data = 1,.in_eop = 1 };
++ unsigned char *intmem_tmp;
++
++ /* Notify the kernel that the interface has stopped */
++ netif_stop_queue(dev);
++
++ /* Stop the receiver DMA */
++ cfg.en = regk_dma_no;
++ REG_WR(dma, np->dma_in_inst, rw_cfg, cfg);
++
++ if (!(np->gigabit_mode)) {
++ /* deallocate SKBs in rx_desc */
++ for (i = 0; i < NBR_RX_DESC; i++)
++ dev_kfree_skb(np->dma_rx_descr_list[i].skb);
++
++ /* Init TX*/
++ for(i=0; i < NBR_INTMEM_TX_BUF; i++) {
++ /* Allocate internal memory */
++ intmem_tmp = NULL;
++ intmem_tmp = crisv32_intmem_alloc(MAX_MEDIA_DATA_SIZE,
++ 32);
++ /* Check that we really got the memory */
++ if (intmem_tmp == NULL) {
++ printk(KERN_ERR "%s: Can't allocate intmem for"
++ " RX buffer nbr: %d\n", dev->name, i);
++ return;
++ }
++ /* Setup the list entry */
++ np->tx_intmem_buf_list[i].free = 1;
++ np->tx_intmem_buf_list[i].buf = intmem_tmp;
++ np->tx_intmem_buf_list[i].next = &np->tx_intmem_buf_list[i + 1];
++ }
++ /* Setup the last list entry */
++ np->tx_intmem_buf_list[NBR_INTMEM_TX_BUF - 1].next = &np->tx_intmem_buf_list[0];
++ /* Setup initial pointer */
++ np->intmem_tx_buf_active = np->tx_intmem_buf_list;
++ np->intmem_tx_buf_catch = np->tx_intmem_buf_list;
++
++ /* Init RX */
++ for (i=0; i < NBR_INTMEM_RX_DESC; i++) {
++ /* Allocate internal memory */
++ intmem_tmp = NULL;
++ intmem_tmp = crisv32_intmem_alloc(MAX_MEDIA_DATA_SIZE, 32);
++ /* Check that we really got the memory */
++ if (intmem_tmp == NULL) {
++ printk(KERN_ERR "%s: Can't allocate intmem for"
++ " desc nbr: %d\n", dev->name, i);
++ return;
++ }
++ /* Setup the descriptors*/
++ np->dma_rx_descr_list[i].skb = NULL;
++ np->dma_rx_descr_list[i].descr.buf =
++ (void *) crisv32_intmem_virt_to_phys(intmem_tmp);
++ np->dma_rx_descr_list[i].descr.after =
++ (void *) crisv32_intmem_virt_to_phys(intmem_tmp + MAX_MEDIA_DATA_SIZE);
++ np->dma_rx_descr_list[i].descr.eol = 0;
++ np->dma_rx_descr_list[i].descr.in_eop = 0;
++ np->dma_rx_descr_list[i].descr.next =
++ (void *) virt_to_phys(&np->dma_rx_descr_list[i+1].descr);
++ }
++ /* Setup the last rx descriptor */
++ np->dma_rx_descr_list[NBR_INTMEM_RX_DESC - 1].descr.eol = 1;
++ np->dma_rx_descr_list[NBR_INTMEM_RX_DESC - 1].descr.next =
++ (void*) virt_to_phys(&np->dma_rx_descr_list[0].descr);
++ /* Initialise initial receive pointers. */
++ np->active_rx_desc = &np->dma_rx_descr_list[0];
++ np->prev_rx_desc = &np->dma_rx_descr_list[NBR_INTMEM_RX_DESC - 1];
++ np->last_rx_desc = np->prev_rx_desc;
++
++ np->gigabit_mode = 1;
++ } else {
++ /* dealloc TX intmem */
++ for(i=0; i < NBR_INTMEM_TX_BUF; i++)
++ crisv32_intmem_free(np->tx_intmem_buf_list[i].buf);
++
++ /* dealloc RX intmem */
++ for (i=0; i < NBR_INTMEM_RX_DESC; i++)
++ crisv32_intmem_free(crisv32_intmem_phys_to_virt((unsigned long)np->dma_rx_descr_list[i].descr.buf));
++
++ /* Setup new rx_desc and alloc SKBs */
++ for (i = 0; i < NBR_RX_DESC; i++) {
++ struct sk_buff *skb;
++
++ skb = dev_alloc_skb(MAX_MEDIA_DATA_SIZE);
++ np->dma_rx_descr_list[i].skb = skb;
++ np->dma_rx_descr_list[i].descr.buf =
++ (char*)virt_to_phys(skb->data);
++ np->dma_rx_descr_list[i].descr.after =
++ (char*)virt_to_phys(skb->data + MAX_MEDIA_DATA_SIZE);
++
++ np->dma_rx_descr_list[i].descr.eol = 0;
++ np->dma_rx_descr_list[i].descr.in_eop = 0;
++ np->dma_rx_descr_list[i].descr.next =
++ (void *) virt_to_phys(&np->dma_rx_descr_list[i + 1].descr);
++ }
++
++ np->dma_rx_descr_list[NBR_RX_DESC - 1].descr.eol = 1;
++ np->dma_rx_descr_list[NBR_RX_DESC - 1].descr.next =
++ (void *) virt_to_phys(&np->dma_rx_descr_list[0].descr);
++
++ /* Initialise initial receive pointers. */
++ np->active_rx_desc = &np->dma_rx_descr_list[0];
++ np->prev_rx_desc = &np->dma_rx_descr_list[NBR_RX_DESC - 1];
++ np->last_rx_desc = np->prev_rx_desc;
++
++ np->gigabit_mode = 0;
++ }
++
++ /* Fill context descriptors. */
++ np->ctxt_in.next = 0;
++ np->ctxt_in.saved_data =
++ (dma_descr_data *) virt_to_phys(&np->dma_rx_descr_list[0].descr);
++ np->ctxt_in.saved_data_buf = np->dma_rx_descr_list[0].descr.buf;
++
++ /* Enable irq and make sure that the irqs are cleared. */
++ REG_WR(dma, np->dma_in_inst, rw_intr_mask, intr_mask_in);
++ REG_WR(dma, np->dma_in_inst, rw_ack_intr, ack_intr);
++
++ /* Start input dma */
++ cfg.en = regk_dma_yes;
++ REG_WR(dma, np->dma_in_inst, rw_cfg, cfg);
++ REG_WR(dma, np->dma_in_inst, rw_group_down,
++ (int) virt_to_phys(&np->ctxt_in));
++
++ DMA_WR_CMD(np->dma_in_inst, regk_dma_load_c);
++ DMA_WR_CMD(np->dma_in_inst, regk_dma_load_d | regk_dma_burst);
++
++ netif_wake_queue(dev);
++
++ stat = REG_RD(dma, np->dma_in_inst, rw_stat);
++}
++#endif
++
++static void
++crisv32_eth_negotiate(struct net_device *dev)
++{
++ unsigned short data =
++ crisv32_eth_get_mdio_reg(dev, MII_ADVERTISE);
++ unsigned short ctrl1000 =
++ crisv32_eth_get_mdio_reg(dev, MII_CTRL1000);
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ /* Make all capabilities available */
++ data |= ADVERTISE_10HALF | ADVERTISE_10FULL |
++ ADVERTISE_100HALF | ADVERTISE_100FULL;
++ ctrl1000 |= ADVERTISE_1000HALF | ADVERTISE_1000FULL;
++
++ /* Remove the speed capabilities that we that do not want */
++ switch (np->current_speed_selection) {
++ case 10 :
++ data &= ~(ADVERTISE_100HALF | ADVERTISE_100FULL);
++ ctrl1000 &= ~(ADVERTISE_1000HALF | ADVERTISE_1000FULL);
++ break;
++ case 100 :
++ data &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL);
++ ctrl1000 &= ~(ADVERTISE_1000HALF | ADVERTISE_1000FULL);
++ break;
++ case 1000 :
++ data &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL |
++ ADVERTISE_100HALF | ADVERTISE_100FULL);
++ break;
++ }
++
++ /* Remove the duplex capabilites that we do not want */
++ if (np->current_duplex == full) {
++ data &= ~(ADVERTISE_10HALF | ADVERTISE_100HALF);
++ ctrl1000 &= ~(ADVERTISE_1000HALF);
++ }
++ else if (np->current_duplex == half) {
++ data &= ~(ADVERTISE_10FULL | ADVERTISE_100FULL);
++ ctrl1000 &= ~(ADVERTISE_1000FULL);
++ }
++
++ crisv32_eth_set_mdio_reg(dev, MII_ADVERTISE, data);
++#ifdef CONFIG_CRIS_MACH_ARTPEC3
++ crisv32_eth_set_mdio_reg(dev, MII_CTRL1000, ctrl1000);
++#endif
++
++ /* Renegotiate with link partner */
++ if (autoneg_normal) {
++ data = crisv32_eth_get_mdio_reg(dev, MII_BMCR);
++ data |= BMCR_ANENABLE | BMCR_ANRESTART;
++ }
++ crisv32_eth_set_mdio_reg(dev, MII_BMCR, data);
++}
++static void
++crisv32_eth_check_speed(unsigned long idev)
++{
++ static int led_initiated = 0;
++ struct net_device *dev = (struct net_device *) idev;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ unsigned long data;
++ int old_speed;
++ unsigned long flags;
++
++ BUG_ON(!np);
++ BUG_ON(!np->transceiver);
++
++ spin_lock(&np->transceiver_lock);
++
++ old_speed = np->current_speed;
++ data = crisv32_eth_get_mdio_reg(dev, MII_BMSR);
++
++ if (!(data & BMSR_LSTATUS))
++ np->current_speed = 0;
++ else
++ np->transceiver->check_speed(dev);
++
++#ifdef CONFIG_CRIS_MACH_ARTPEC3
++ if ((old_speed != np->current_speed)
++ && ((old_speed == 1000) || (np->current_speed == 1000))) {
++ /* Switch between mii and gmii */
++ reg_eth_rw_gen_ctrl gen_ctrl = REG_RD(eth, np->eth_inst,
++ rw_gen_ctrl);
++ reg_eth_rw_tr_ctrl tr_ctrl = REG_RD(eth, np->eth_inst,
++ rw_tr_ctrl);
++ if (old_speed == 1000) {
++ gen_ctrl.phy = regk_eth_mii;
++ gen_ctrl.gtxclk_out = regk_eth_no;
++ tr_ctrl.carrier_ext = regk_eth_no;
++ }
++ else {
++ gen_ctrl.phy = regk_eth_gmii;
++ gen_ctrl.gtxclk_out = regk_eth_yes;
++ tr_ctrl.carrier_ext = regk_eth_yes;
++ }
++ REG_WR(eth, np->eth_inst, rw_tr_ctrl, tr_ctrl);
++ REG_WR(eth, np->eth_inst, rw_gen_ctrl, gen_ctrl);
++
++ crisv32_eth_switch_intmem_usage(dev);
++ }
++#endif
++
++ spin_lock_irqsave(&np->leds->led_lock, flags);
++ if ((old_speed != np->current_speed) || !led_initiated) {
++ led_initiated = 1;
++ np->leds->clear_led_timer.data = (unsigned long) dev;
++ if (np->current_speed) {
++ netif_carrier_on(dev);
++ crisv32_set_network_leds(LED_LINK, dev);
++ } else {
++ netif_carrier_off(dev);
++ crisv32_set_network_leds(LED_NOLINK, dev);
++ }
++ }
++ spin_unlock_irqrestore(&np->leds->led_lock, flags);
++
++ /* Reinitialize the timer. */
++ np->speed_timer.expires = jiffies + NET_LINK_UP_CHECK_INTERVAL;
++ add_timer(&np->speed_timer);
++
++ spin_unlock(&np->transceiver_lock);
++}
++
++static void
++crisv32_eth_set_speed(struct net_device *dev, unsigned long speed)
++{
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ spin_lock(&np->transceiver_lock);
++ if (np->current_speed_selection != speed) {
++ np->current_speed_selection = speed;
++ crisv32_eth_negotiate(dev);
++ }
++ spin_unlock(&np->transceiver_lock);
++}
++
++static void
++crisv32_eth_check_duplex(unsigned long idev)
++{
++ struct net_device *dev = (struct net_device *) idev;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++ reg_eth_rw_rec_ctrl rec_ctrl;
++ int old_duplex = np->full_duplex;
++
++ np->transceiver->check_duplex(dev);
++
++ if (old_duplex != np->full_duplex) {
++ /* Duplex changed. */
++ rec_ctrl = (reg_eth_rw_rec_ctrl) REG_RD(eth, np->eth_inst,
++ rw_rec_ctrl);
++ rec_ctrl.duplex = np->full_duplex;
++ REG_WR(eth, np->eth_inst, rw_rec_ctrl, rec_ctrl);
++ }
++
++ /* Reinitialize the timer. */
++ np->duplex_timer.expires = jiffies + NET_DUPLEX_CHECK_INTERVAL;
++ add_timer(&np->duplex_timer);
++}
++
++static void
++crisv32_eth_set_duplex(struct net_device *dev, enum duplex new_duplex)
++{
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++ spin_lock(&np->transceiver_lock);
++ if (np->current_duplex != new_duplex) {
++ np->current_duplex = new_duplex;
++ crisv32_eth_negotiate(dev);
++ }
++ spin_unlock(&np->transceiver_lock);
++}
++
++static int
++crisv32_eth_probe_transceiver(struct net_device *dev)
++{
++ unsigned int phyid_high;
++ unsigned int phyid_low;
++ unsigned int oui;
++ struct transceiver_ops *ops = NULL;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ /* Probe MDIO physical address. */
++ for (np->mdio_phy_addr = 0;
++ np->mdio_phy_addr <= 31; np->mdio_phy_addr++) {
++ if (crisv32_eth_get_mdio_reg(dev, MII_BMSR) != 0xffff)
++ break;
++ }
++
++ if (np->mdio_phy_addr == 32)
++ return -ENODEV;
++
++ /* Get manufacturer. */
++ phyid_high = crisv32_eth_get_mdio_reg(dev, MII_PHYSID1);
++ phyid_low = crisv32_eth_get_mdio_reg(dev, MII_PHYSID2);
++
++ oui = (phyid_high << 6) | (phyid_low >> 10);
++
++ for (ops = &transceivers[0]; ops->oui; ops++) {
++ if (ops->oui == oui)
++ break;
++ }
++
++ np->transceiver = ops;
++ return 0;
++}
++
++static void
++generic_check_speed(struct net_device *dev)
++{
++ unsigned long data;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ data = crisv32_eth_get_mdio_reg(dev, MII_ADVERTISE);
++ if ((data & ADVERTISE_100FULL) ||
++ (data & ADVERTISE_100HALF))
++ np->current_speed = 100;
++ else
++ np->current_speed = 10;
++}
++
++static void
++generic_check_duplex(struct net_device *dev)
++{
++ unsigned long data;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ data = crisv32_eth_get_mdio_reg(dev, MII_ADVERTISE);
++ if ((data & ADVERTISE_10FULL) ||
++ (data & ADVERTISE_100FULL))
++ np->full_duplex = 1;
++ else
++ np->full_duplex = 0;
++}
++
++static void
++broadcom_check_speed(struct net_device *dev)
++{
++ unsigned long data;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ data = crisv32_eth_get_mdio_reg(dev, MDIO_AUX_CTRL_STATUS_REG);
++ np->current_speed = (data & MDIO_BC_SPEED ? 100 : 10);
++}
++
++static void
++broadcom_check_duplex(struct net_device *dev)
++{
++ unsigned long data;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ data = crisv32_eth_get_mdio_reg(dev, MDIO_AUX_CTRL_STATUS_REG);
++ np->full_duplex = (data & MDIO_BC_FULL_DUPLEX_IND) ? 1 : 0;
++}
++
++static void
++tdk_check_speed(struct net_device *dev)
++{
++ unsigned long data;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ data = crisv32_eth_get_mdio_reg(dev, MDIO_TDK_DIAGNOSTIC_REG);
++ np->current_speed = (data & MDIO_TDK_DIAGNOSTIC_RATE ? 100 : 10);
++}
++
++static void
++tdk_check_duplex(struct net_device *dev)
++{
++ unsigned long data;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ data = crisv32_eth_get_mdio_reg(dev, MDIO_TDK_DIAGNOSTIC_REG);
++ np->full_duplex = (data & MDIO_TDK_DIAGNOSTIC_DPLX) ? 1 : 0;
++
++}
++
++static void
++intel_check_speed(struct net_device *dev)
++{
++ unsigned long data;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++ data = crisv32_eth_get_mdio_reg(dev, MDIO_INT_STATUS_REG_2);
++ np->current_speed = (data & MDIO_INT_SPEED ? 100 : 10);
++}
++
++static void
++intel_check_duplex(struct net_device *dev)
++{
++ unsigned long data;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ data = crisv32_eth_get_mdio_reg(dev, MDIO_INT_STATUS_REG_2);
++ np->full_duplex = (data & MDIO_INT_FULL_DUPLEX_IND) ? 1 : 0;
++}
++
++static void
++national_check_speed(struct net_device *dev)
++{
++ unsigned long data;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ data = crisv32_eth_get_mdio_reg(dev, MDIO_NAT_LINK_AN_REG);
++ if (data & MDIO_NAT_1000)
++ np->current_speed = 1000;
++ else if (data & MDIO_NAT_100)
++ np->current_speed = 100;
++ else
++ np->current_speed = 10;
++}
++
++static void
++national_check_duplex(struct net_device *dev)
++{
++ unsigned long data;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ data = crisv32_eth_get_mdio_reg(dev, MDIO_NAT_LINK_AN_REG);
++ if (data & MDIO_NAT_FULL_DUPLEX_IND)
++ np->full_duplex = 1;
++ else
++ np->full_duplex = 0;
++}
++
++static void
++crisv32_eth_reset_tranceiver(struct net_device *dev)
++{
++ int i;
++ unsigned short cmd;
++ unsigned short data;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ data = crisv32_eth_get_mdio_reg(dev, MII_BMCR);
++
++ cmd = (MDIO_START << 14)
++ | (MDIO_WRITE << 12)
++ | (np->mdio_phy_addr << 7)
++ | (MII_BMCR << 2);
++
++ crisv32_eth_send_mdio_cmd(dev, cmd, 1);
++
++ data |= 0x8000;
++
++ /* Magic value is number of bits. */
++ for (i = 15; i >= 0; i--)
++ crisv32_eth_send_mdio_bit(dev, GET_BIT(i, data));
++}
++
++static unsigned short
++crisv32_eth_get_mdio_reg(struct net_device *dev, unsigned char reg_num)
++{
++ int i;
++ unsigned short cmd; /* Data to be sent on MDIO port. */
++ unsigned short data; /* Data read from MDIO. */
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ /* Start of frame, OP Code, Physical Address, Register Address. */
++ cmd = (MDIO_START << 14)
++ | (MDIO_READ << 12)
++ | (np->mdio_phy_addr << 7)
++ | (reg_num << 2);
++
++ crisv32_eth_send_mdio_cmd(dev, cmd, 0);
++
++ data = 0;
++
++ /* Receive data. Magic value is number of bits. */
++ for (i = 15; i >= 0; i--)
++ data |= (crisv32_eth_receive_mdio_bit(dev) << i);
++
++ return data;
++}
++
++static void
++crisv32_eth_set_mdio_reg(struct net_device *dev, unsigned char reg, int value)
++{
++ int bitCounter;
++ unsigned short cmd;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ cmd = (MDIO_START << 14)
++ | (MDIO_WRITE << 12)
++ | (np->mdio_phy_addr << 7)
++ | (reg << 2);
++
++ crisv32_eth_send_mdio_cmd(dev, cmd, 1);
++
++ /* Data... */
++ for (bitCounter=15; bitCounter>=0 ; bitCounter--) {
++ crisv32_eth_send_mdio_bit(dev, GET_BIT(bitCounter, value));
++ }
++}
++
++static void
++crisv32_eth_send_mdio_cmd(struct net_device *dev, unsigned short cmd,
++ int write_cmd)
++{
++ int i;
++ unsigned char data = 0x2;
++
++ /* Preamble. Magic value is number of bits. */
++ for (i = 31; i >= 0; i--)
++ crisv32_eth_send_mdio_bit(dev, GET_BIT(i, MDIO_PREAMBLE));
++
++ for (i = 15; i >= 2; i--)
++ crisv32_eth_send_mdio_bit(dev, GET_BIT(i, cmd));
++
++ /* Turnaround. */
++ for (i = 1; i >= 0; i--)
++ if (write_cmd)
++ crisv32_eth_send_mdio_bit(dev, GET_BIT(i, data));
++ else
++ crisv32_eth_receive_mdio_bit(dev);
++}
++
++static void
++crisv32_eth_send_mdio_bit(struct net_device *dev, unsigned char bit)
++{
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ reg_eth_rw_mgm_ctrl mgm_ctrl = {
++ .mdoe = regk_eth_yes,
++ .mdio = bit & 1
++ };
++
++ REG_WR(eth, np->eth_inst, rw_mgm_ctrl, mgm_ctrl);
++
++ udelay(1);
++
++ mgm_ctrl.mdc = 1;
++ REG_WR(eth, np->eth_inst, rw_mgm_ctrl, mgm_ctrl);
++
++ udelay(1);
++}
++
++static unsigned char
++crisv32_eth_receive_mdio_bit(struct net_device *dev)
++{
++ reg_eth_r_stat stat;
++ reg_eth_rw_mgm_ctrl mgm_ctrl = {0};
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++
++ REG_WR(eth, np->eth_inst, rw_mgm_ctrl, mgm_ctrl);
++ stat = REG_RD(eth, np->eth_inst, r_stat);
++
++ udelay(1);
++
++ mgm_ctrl.mdc = 1;
++ REG_WR(eth, np->eth_inst, rw_mgm_ctrl, mgm_ctrl);
++
++ udelay(1);
++ return stat.mdio;
++}
++
++static void
++crisv32_clear_network_leds(unsigned long priv)
++{
++ struct net_device *dev = (struct net_device*)priv;
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++ unsigned long flags;
++
++ spin_lock_irqsave(&np->leds->led_lock, flags);
++ if (np->leds->led_active && time_after(jiffies, np->leds->led_next_time)) {
++ crisv32_set_network_leds(LED_NOACTIVITY, dev);
++
++ /* Set the earliest time we may set the LED */
++ np->leds->led_next_time = jiffies + NET_FLASH_PAUSE;
++ np->leds->led_active = 0;
++ }
++ spin_unlock_irqrestore(&np->leds->led_lock, flags);
++}
++
++static void
++crisv32_set_network_leds(int active, struct net_device *dev)
++{
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++ int light_leds = 0;
++
++ if (np->leds->ledgrp == LED_GRP_NONE)
++ return;
++
++ if (active == LED_NOLINK) {
++ if (dev == crisv32_dev[0])
++ np->leds->ifisup[0] = 0;
++ else
++ np->leds->ifisup[1] = 0;
++ }
++ else if (active == LED_LINK) {
++ if (dev == crisv32_dev[0])
++ np->leds->ifisup[0] = 1;
++ else
++ np->leds->ifisup[1] = 1;
++#if defined(CONFIG_ETRAX_NETWORK_LED_ON_WHEN_LINK)
++ light_leds = 1;
++ } else {
++ light_leds = (active == LED_NOACTIVITY);
++#elif defined(CONFIG_ETRAX_NETWORK_LED_ON_WHEN_ACTIVITY)
++ light_leds = 0;
++ } else {
++ light_leds = (active == LED_ACTIVITY);
++#else
++#error "Define either CONFIG_ETRAX_NETWORK_LED_ON_WHEN_LINK or CONFIG_ETRAX_NETWORK_LED_ON_WHEN_ACTIVITY"
++#endif
++ }
++
++ if (!use_network_leds) {
++ NET_LED_SET(np->leds->ledgrp,LED_OFF);
++ return;
++ }
++
++ if (!np->current_speed) {
++ /* Set link down if none of the interfaces that use this led group is up */
++ if ((np->leds->ifisup[0] + np->leds->ifisup[1]) == 0) {
++#if defined(CONFIG_ETRAX_NETWORK_RED_ON_NO_CONNECTION)
++ /* Make LED red, link is down */
++ NET_LED_SET(np->leds->ledgrp,LED_RED);
++#else
++ NET_LED_SET(np->leds->ledgrp,LED_OFF);
++#endif
++ }
++ }
++ else if (light_leds) {
++ if (np->current_speed == 10) {
++ NET_LED_SET(np->leds->ledgrp,LED_ORANGE);
++ } else {
++ NET_LED_SET(np->leds->ledgrp,LED_GREEN);
++ }
++ }
++ else {
++ NET_LED_SET(np->leds->ledgrp,LED_OFF);
++ }
++}
++
++#ifdef CONFIG_NET_POLL_CONTROLLER
++static void
++crisv32_netpoll(struct net_device* netdev)
++{
++ crisv32rx_eth_interrupt(DMA0_INTR_VECT, netdev, NULL);
++}
++#endif
++
++#ifdef CONFIG_CPU_FREQ
++static int
++crisv32_ethernet_freq_notifier(struct notifier_block *nb,
++ unsigned long val, void *data)
++{
++ struct cpufreq_freqs *freqs = data;
++ if (val == CPUFREQ_POSTCHANGE) {
++ int i;
++ for (i = 0; i < 2; i++) {
++ struct net_device* dev = crisv32_dev[i];
++ unsigned short data;
++ if (dev == NULL)
++ continue;
++
++ data = crisv32_eth_get_mdio_reg(dev, MII_BMCR);
++ if (freqs->new == 200000)
++ data &= ~BMCR_PDOWN;
++ else
++ data |= BMCR_PDOWN;
++ crisv32_eth_set_mdio_reg(dev, MII_BMCR, data);
++ }
++ }
++ return 0;
++}
++#endif
++
++/*
++ * Must be called with the np->lock held.
++ */
++static void crisv32_ethernet_bug(struct net_device *dev)
++{
++ struct crisv32_ethernet_local *np = netdev_priv(dev);
++ dma_descr_data *dma_pos;
++ dma_descr_data *in_dma_pos;
++ reg_dma_rw_stat stat = {0};
++ reg_dma_rw_stat in_stat = {0};
++ int i;
++
++ /* Get the current output dma position. */
++ stat = REG_RD(dma, np->dma_out_inst, rw_stat);
++ dma_pos = phys_to_virt(REG_RD_INT(dma, np->dma_out_inst, rw_data));
++ in_stat = REG_RD(dma, np->dma_in_inst, rw_stat);
++ in_dma_pos = phys_to_virt(REG_RD_INT(dma, np->dma_in_inst, rw_data));
++
++ printk("%s:\n"
++ "stat.list_state=%x\n"
++ "stat.mode=%x\n"
++ "stat.stream_cmd_src=%x\n"
++ "dma_pos=%x\n"
++ "in_stat.list_state=%x\n"
++ "in_stat.mode=%x\n"
++ "in_stat.stream_cmd_src=%x\n"
++ "in_dma_pos=%x\n"
++ "catch=%x active=%x\n"
++ "packets=%d queue=%d\n"
++ "intr_vect.r_vect=%x\n"
++ "dma.r_masked_intr=%x dma.rw_ack_intr=%x "
++ "dma.r_intr=%x dma.rw_intr_masked=%x\n"
++ "eth.r_stat=%x\n",
++ __func__,
++ stat.list_state, stat.mode, stat.stream_cmd_src,
++ (unsigned int)dma_pos,
++ in_stat.list_state, in_stat.mode, in_stat.stream_cmd_src,
++ (unsigned int)in_dma_pos,
++ (unsigned int)&np->catch_tx_desc->descr,
++ (unsigned int)&np->active_tx_desc->descr,
++ np->txpackets,
++ netif_queue_stopped(dev),
++ REG_RD_INT(intr_vect, regi_irq, r_vect),
++ REG_RD_INT(dma, np->dma_out_inst, r_masked_intr),
++ REG_RD_INT(dma, np->dma_out_inst, rw_ack_intr),
++ REG_RD_INT(dma, np->dma_out_inst, r_intr),
++ REG_RD_INT(dma, np->dma_out_inst, rw_intr_mask),
++ REG_RD_INT(eth, np->eth_inst, r_stat));
++
++ printk("tx-descriptors:\n");
++ for (i = 0; i < NBR_TX_DESC; i++) {
++ printk("txdesc[%d]=0x%x\n", i, (unsigned int)
++ virt_to_phys(&np->dma_tx_descr_list[i].descr));
++ printk("txdesc[%d].skb=0x%x\n", i,
++ (unsigned int)np->dma_tx_descr_list[i].skb);
++ printk("txdesc[%d].buf=0x%x\n", i,
++ (unsigned int)np->dma_tx_descr_list[i].descr.buf);
++ printk("txdesc[%d].after=0x%x\n", i,
++ (unsigned int)np->dma_tx_descr_list[i].descr.after);
++ printk("txdesc[%d].intr=%x\n", i,
++ np->dma_tx_descr_list[i].descr.intr);
++ printk("txdesc[%d].eol=%x\n", i,
++ np->dma_tx_descr_list[i].descr.eol);
++ printk("txdesc[%d].out_eop=%x\n", i,
++ np->dma_tx_descr_list[i].descr.out_eop);
++ printk("txdesc[%d].wait=%x\n", i,
++ np->dma_tx_descr_list[i].descr.wait);
++ }
++}
++
++
++static int
++crisv32_init_module(void)
++{
++ return crisv32_ethernet_init();
++}
++
++module_init(crisv32_init_module);
+diff -urN linux-2.6.19.2.orig/drivers/net/cris/eth_v32.h linux-2.6.19.2.dev/drivers/net/cris/eth_v32.h
+--- linux-2.6.19.2.orig/drivers/net/cris/eth_v32.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/drivers/net/cris/eth_v32.h 2007-02-06 11:10:37.000000000 +0100
+@@ -0,0 +1,248 @@
++/*
++ * Definitions for ETRAX FS ethernet driver.
++ *
++ * Copyright (C) 2003, 2004, 2005 Axis Communications.
++ */
++
++#ifndef _ETRAX_ETHERNET_H_
++#define _ETRAX_ETHERNET_H_
++
++#include <asm/arch/hwregs/dma.h>
++
++
++#define MAX_MEDIA_DATA_SIZE 1522 /* Max packet size. */
++
++#define NBR_RX_DESC 64 /* Number of RX descriptors. */
++#define NBR_TX_DESC 16 /* Number of TX descriptors. */
++#ifdef CONFIG_CRIS_MACH_ARTPEC3
++#define NBR_INTMEM_RX_DESC 5 /* Number of RX descriptors in int. mem.
++ * when running in gigabit mode.
++ * Should be less then NBR_RX_DESC
++ */
++#define NBR_INTMEM_TX_BUF 4 /* Number of TX buffers in int. mem
++ * when running in gigabit mode.
++ * Should be less than NBR_TX_DESC
++ */
++#endif
++
++/* Large packets are sent directly to upper layers while small packets
++ * are copied (to reduce memory waste). The following constant
++ * decides the breakpoint.
++ */
++#define RX_COPYBREAK (256)
++
++#define ETHER_HEAD_LEN (14)
++
++/*
++** MDIO constants.
++*/
++#define MDIO_START 0x1
++#define MDIO_READ 0x2
++#define MDIO_WRITE 0x1
++#define MDIO_PREAMBLE 0xfffffffful
++
++/* Broadcom specific */
++#define MDIO_AUX_CTRL_STATUS_REG 0x18
++#define MDIO_BC_FULL_DUPLEX_IND 0x1
++#define MDIO_BC_SPEED 0x2
++
++/* TDK specific */
++#define MDIO_TDK_DIAGNOSTIC_REG 18
++#define MDIO_TDK_DIAGNOSTIC_RATE 0x400
++#define MDIO_TDK_DIAGNOSTIC_DPLX 0x800
++
++/*Intel LXT972A specific*/
++#define MDIO_INT_STATUS_REG_2 0x0011
++#define MDIO_INT_FULL_DUPLEX_IND ( 0x0001 << 9 )
++#define MDIO_INT_SPEED ( 0x0001 << 14 )
++
++/*National Semiconductor DP83865 specific*/
++#define MDIO_NAT_LINK_AN_REG 0x11
++#define MDIO_NAT_1000 (0x0001 << 4)
++#define MDIO_NAT_100 (0x0001 << 3)
++#define MDIO_NAT_FULL_DUPLEX_IND (0x0001 << 1)
++
++/* Network flash constants */
++#define NET_FLASH_TIME (HZ/50) /* 20 ms */
++#define NET_FLASH_PAUSE (HZ/100) /* 10 ms */
++#define NET_LINK_UP_CHECK_INTERVAL (2*HZ) /* 2 seconds. */
++#define NET_DUPLEX_CHECK_INTERVAL (2*HZ) /* 2 seconds. */
++
++/* Duplex settings. */
++enum duplex {
++ half,
++ full,
++ autoneg
++};
++
++/* Some transceivers requires special handling. */
++struct transceiver_ops {
++ unsigned int oui;
++ void (*check_speed) (struct net_device * dev);
++ void (*check_duplex) (struct net_device * dev);
++};
++
++typedef struct crisv32_eth_descr {
++ dma_descr_data descr __attribute__ ((__aligned__(32)));
++ struct sk_buff *skb;
++ unsigned char *linearized_packet;
++} crisv32_eth_descr;
++
++
++
++#ifdef CONFIG_CRIS_MACH_ARTPEC3
++struct tx_buffer_list {
++ struct tx_buffer_list *next;
++ unsigned char *buf;
++ char free;
++};
++#endif
++
++/* LED stuff */
++#define LED_GRP_0 0
++#define LED_GRP_1 1
++#define LED_GRP_NONE 2
++
++#define LED_ACTIVITY 0
++#define LED_NOACTIVITY 1
++#define LED_LINK 2
++#define LED_NOLINK 3
++
++struct crisv32_eth_leds {
++ unsigned int ledgrp;
++ int led_active;
++ unsigned long led_next_time;
++ struct timer_list clear_led_timer;
++ spinlock_t led_lock; /* Protect LED state */
++ int ifisup[2];
++};
++
++#define NET_LED_SET(x,y) \
++ do { \
++ if (x == 0) LED_NETWORK_GRP0_SET(y); \
++ if (x == 1) LED_NETWORK_GRP1_SET(y); \
++ } while (0)
++
++/* Information that need to be kept for each device. */
++struct crisv32_ethernet_local {
++ dma_descr_context ctxt_in __attribute__ ((__aligned__(32)));
++ dma_descr_context ctxt_out __attribute__ ((__aligned__(32)));
++
++ crisv32_eth_descr *active_rx_desc;
++ crisv32_eth_descr *prev_rx_desc;
++ crisv32_eth_descr *last_rx_desc;
++
++ crisv32_eth_descr *active_tx_desc;
++ crisv32_eth_descr *prev_tx_desc;
++ crisv32_eth_descr *catch_tx_desc;
++
++ crisv32_eth_descr dma_rx_descr_list[NBR_RX_DESC];
++ crisv32_eth_descr dma_tx_descr_list[NBR_TX_DESC];
++#ifdef CONFIG_CRIS_MACH_ARTPEC3
++ struct tx_buffer_list tx_intmem_buf_list[NBR_INTMEM_TX_BUF];
++ struct tx_buffer_list *intmem_tx_buf_active;
++ struct tx_buffer_list *intmem_tx_buf_catch;
++ char gigabit_mode;
++#endif
++ char new_rx_package;
++
++ /* DMA and ethernet registers for the device. */
++ int eth_inst;
++ int dma_in_inst;
++ int dma_out_inst;
++
++ /* Network speed indication. */
++ struct timer_list speed_timer;
++ int current_speed; /* Speed read from tranceiver */
++ int current_speed_selection; /* Speed selected by user */
++ int sender_started;
++ int txpackets;
++
++ struct crisv32_eth_leds *leds;
++
++ /* Duplex. */
++ struct timer_list duplex_timer;
++ int full_duplex;
++ enum duplex current_duplex;
++
++ struct net_device_stats stats;
++
++ /* Transciever address. */
++ unsigned int mdio_phy_addr;
++
++ struct transceiver_ops *transceiver;
++
++ /*
++ * TX control lock. This protects the transmit buffer ring state along
++ * with the "tx full" state of the driver. This means all netif_queue
++ * flow control actions are protected by this lock as well.
++ */
++ spinlock_t lock;
++ spinlock_t transceiver_lock; /* Protect transceiver state. */
++};
++
++/* Function prototypes. */
++static int crisv32_ethernet_init(void);
++static int crisv32_ethernet_device_init(struct net_device* dev);
++static int crisv32_eth_open(struct net_device *dev);
++static int crisv32_eth_close(struct net_device *dev);
++static int crisv32_eth_set_mac_address(struct net_device *dev, void *vpntr);
++static irqreturn_t crisv32rx_eth_interrupt(int irq, void *dev_id);
++static irqreturn_t crisv32tx_eth_interrupt(int irq, void *dev_id);
++static irqreturn_t crisv32nw_eth_interrupt(int irq, void *dev_id);
++static void crisv32_eth_receive_packet(struct net_device *dev);
++static int crisv32_eth_send_packet(struct sk_buff *skb, struct net_device *dev);
++static void crisv32_eth_hw_send_packet(unsigned char *buf, int length,
++ void *priv);
++static void crisv32_eth_tx_timeout(struct net_device *dev);
++static void crisv32_eth_set_multicast_list(struct net_device *dev);
++static int crisv32_eth_ioctl(struct net_device *dev, struct ifreq *ifr,
++ int cmd);
++static int crisv32_eth_set_config(struct net_device* dev, struct ifmap* map);
++#ifdef CONFIG_CRIS_MACH_ARTPEC3
++static void crisv32_eth_switch_intmem_usage(struct net_device *dev);
++#endif
++static void crisv32_eth_negotiate(struct net_device *dev);
++static void crisv32_eth_check_speed(unsigned long idev);
++static void crisv32_eth_set_speed(struct net_device *dev, unsigned long speed);
++static void crisv32_eth_check_duplex(unsigned long idev);
++static void crisv32_eth_set_duplex(struct net_device *dev, enum duplex);
++static int crisv32_eth_probe_transceiver(struct net_device *dev);
++
++static struct ethtool_ops crisv32_ethtool_ops;
++
++static void generic_check_speed(struct net_device *dev);
++static void generic_check_duplex(struct net_device *dev);
++static void broadcom_check_speed(struct net_device *dev);
++static void broadcom_check_duplex(struct net_device *dev);
++static void tdk_check_speed(struct net_device *dev);
++static void tdk_check_duplex(struct net_device *dev);
++static void intel_check_speed(struct net_device* dev);
++static void intel_check_duplex(struct net_device *dev);
++static void national_check_speed(struct net_device* dev);
++static void national_check_duplex(struct net_device *dev);
++
++#ifdef CONFIG_NET_POLL_CONTROLLER
++static void crisv32_netpoll(struct net_device* dev);
++#endif
++
++static void crisv32_clear_network_leds(unsigned long dummy);
++static void crisv32_set_network_leds(int active, struct net_device* dev);
++
++static void crisv32_eth_reset_tranceiver(struct net_device *dev);
++static unsigned short crisv32_eth_get_mdio_reg(struct net_device *dev,
++ unsigned char reg_num);
++static void crisv32_eth_set_mdio_reg(struct net_device *dev,
++ unsigned char reg_num,
++ int val);
++static void crisv32_eth_send_mdio_cmd(struct net_device *dev,
++ unsigned short cmd, int write_cmd);
++static void crisv32_eth_send_mdio_bit(struct net_device *dev,
++ unsigned char bit);
++static unsigned char crisv32_eth_receive_mdio_bit(struct net_device *dev);
++
++static struct net_device_stats *crisv32_get_stats(struct net_device *dev);
++static void crisv32_start_dma_out(struct crisv32_ethernet_local* np);
++
++
++#endif /* _ETRAX_ETHERNET_H_ */
diff --git a/target/linux/etrax-2.6/patches/cris/004-kernel-Kconfig.sched.patch b/target/linux/etrax-2.6/patches/cris/004-kernel-Kconfig.sched.patch
new file mode 100644
index 0000000000..c6feeebf7b
--- /dev/null
+++ b/target/linux/etrax-2.6/patches/cris/004-kernel-Kconfig.sched.patch
@@ -0,0 +1,21 @@
+--- linux-2.6.19.2.old/kernel/Kconfig.sched 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.dev/kernel/Kconfig.sched 2007-02-05 12:22:39.000000000 +0100
+@@ -0,0 +1,18 @@
++#
++# Scheduler tuning
++#
++
++config OVERRIDE_SCHED_STARVATION_LIMIT
++ bool "Override scheduler STARVATION_LIMIT"
++ help
++ This threshold sets the maximum time a task may wait in the
++ expired runqueue when deciding to re-insert interactive tasks
++ into the active runqueue. The time-limit is in ms but scales with
++ the number of running tasks in the system.
++
++config SCHED_STARVATION_LIMIT
++ int "Scheduler Starvation Limit"
++ depends on OVERRIDE_SCHED_STARVATION_LIMIT
++ default 10
++ help
++ Starvation limit in milliseconds per running task.
diff --git a/target/linux/etrax-2.6/patches/cris/005-loader.patch b/target/linux/etrax-2.6/patches/cris/005-loader.patch
new file mode 100644
index 0000000000..bf35bd8aa0
--- /dev/null
+++ b/target/linux/etrax-2.6/patches/cris/005-loader.patch
@@ -0,0 +1,60 @@
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/Makefile linux-2.6.19.2/arch/cris/arch-v10/boot/Makefile
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/Makefile 2007-05-19 14:31:06.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/Makefile 2007-05-19 14:32:24.000000000 +0200
+@@ -2,7 +2,7 @@
+ # arch/cris/arch-v10/boot/Makefile
+ #
+
+-OBJCOPY = objcopy-cris
++OBJCOPY = /usr/local/cris/objcopy-cris
+ OBJCOPYFLAGS = -O binary --remove-section=.bss
+
+ subdir- := compressed rescue
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/Makefile linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/Makefile
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/Makefile 2007-05-19 14:31:06.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/Makefile 2007-05-19 14:33:45.000000000 +0200
+@@ -4,10 +4,10 @@
+
+ CC = gcc-cris -melf $(LINUXINCLUDE)
+ CFLAGS = -O2
+-LD = ld-cris
++LD = /usr/local/cris/ld-cris
+ LDFLAGS = -T $(obj)/decompress.ld
+ OBJECTS = $(obj)/head.o $(obj)/misc.o
+-OBJCOPY = objcopy-cris
++OBJCOPY = /usr/local/cris/objcopy-cris
+ OBJCOPYFLAGS = -O binary --remove-section=.bss
+
+ quiet_cmd_image = BUILD $@
+@@ -22,10 +22,10 @@
+ $(call if_changed,objcopy)
+
+ $(obj)/head.o: $(obj)/head.S .config
+- @$(CC) -D__ASSEMBLY__ -traditional -c $< -o $@
++ /usr/local/cris/gcc-cris -melf $(LINUXINCLUDE) -D__ASSEMBLY__ -traditional -c $< -o $@
+
+ $(obj)/misc.o: $(obj)/misc.c .config
+- @$(CC) -D__KERNEL__ -c $< -o $@
++ /usr/local/cris/gcc-cris -melf $(LINUXINCLUDE) -D__KERNEL__ -c $< -o $@
+
+ $(obj)/vmlinux: $(obj)/piggy.gz $(obj)/decompress.bin FORCE
+ $(call if_changed,image)
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/rescue/Makefile linux-2.6.19.2/arch/cris/arch-v10/boot/rescue/Makefile
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/rescue/Makefile 2007-05-19 14:31:06.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/rescue/Makefile 2007-05-19 14:34:25.000000000 +0200
+@@ -2,12 +2,12 @@
+ # Makefile for rescue (bootstrap) code
+ #
+
+-CC = gcc-cris -mlinux $(LINUXINCLUDE)
++CC = /usr/local/cris/gcc-cris -mlinux $(LINUXINCLUDE)
+ CFLAGS = -O2
+ AFLAGS = -traditional
+-LD = gcc-cris -mlinux -nostdlib
++LD = /usr/local/cris/gcc-cris -mlinux -nostdlib
+ LDFLAGS = -T $(obj)/rescue.ld
+-OBJCOPY = objcopy-cris
++OBJCOPY = /usr/local/cris/objcopy-cris
+ OBJCOPYFLAGS = -O binary --remove-section=.bss
+ obj-y = head.o
+ OBJECT = $(obj)/$(obj-y)
diff --git a/target/linux/etrax-2.6/patches/cris/006-gcc-4.patch b/target/linux/etrax-2.6/patches/cris/006-gcc-4.patch
new file mode 100644
index 0000000000..31a4107707
--- /dev/null
+++ b/target/linux/etrax-2.6/patches/cris/006-gcc-4.patch
@@ -0,0 +1,752 @@
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/lib/memset.c linux-2.6.19.2/arch/cris/arch-v10/lib/memset.c
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/lib/memset.c 2007-05-20 01:46:35.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/lib/memset.c 2007-05-20 01:51:47.000000000 +0200
+@@ -29,224 +29,21 @@
+
+ #include <linux/types.h>
+
+-/* No, there's no macro saying 12*4, since it is "hard" to get it into
+- the asm in a good way. Thus better to expose the problem everywhere.
+- */
+
+-/* Assuming 1 cycle per dword written or read (ok, not really true), and
+- one per instruction, then 43+3*(n/48-1) <= 24+24*(n/48-1)
+- so n >= 45.7; n >= 0.9; we win on the first full 48-byte block to set. */
+-
+-#define ZERO_BLOCK_SIZE (1*12*4)
+-
+-void *memset(void *pdst,
+- int c,
+- size_t plen)
++/**
++ * memset - Fill a region of memory with the given value
++ * @s: Pointer to the start of the area.
++ * @c: The byte to fill the area with
++ * @count: The size of the area.
++ *
++ * Do not use memset() to access IO space, use memset_io() instead.
++ */
++void *memset(void *s, int c, size_t count)
+ {
+- /* Ok. Now we want the parameters put in special registers.
+- Make sure the compiler is able to make something useful of this. */
+-
+- register char *return_dst __asm__ ("r10") = pdst;
+- register int n __asm__ ("r12") = plen;
+- register int lc __asm__ ("r11") = c;
+-
+- /* Most apps use memset sanely. Only those memsetting about 3..4
+- bytes or less get penalized compared to the generic implementation
+- - and that's not really sane use. */
+-
+- /* Ugh. This is fragile at best. Check with newer GCC releases, if
+- they compile cascaded "x |= x << 8" sanely! */
+- __asm__("movu.b %0,$r13\n\t"
+- "lslq 8,$r13\n\t"
+- "move.b %0,$r13\n\t"
+- "move.d $r13,%0\n\t"
+- "lslq 16,$r13\n\t"
+- "or.d $r13,%0"
+- : "=r" (lc) : "0" (lc) : "r13");
+-
+- {
+- register char *dst __asm__ ("r13") = pdst;
+-
+- /* This is NONPORTABLE, but since this whole routine is */
+- /* grossly nonportable that doesn't matter. */
+-
+- if (((unsigned long) pdst & 3) != 0
+- /* Oops! n=0 must be a legal call, regardless of alignment. */
+- && n >= 3)
+- {
+- if ((unsigned long)dst & 1)
+- {
+- *dst = (char) lc;
+- n--;
+- dst++;
+- }
+-
+- if ((unsigned long)dst & 2)
+- {
+- *(short *)dst = lc;
+- n -= 2;
+- dst += 2;
+- }
+- }
+-
+- /* Now the fun part. For the threshold value of this, check the equation
+- above. */
+- /* Decide which copying method to use. */
+- if (n >= ZERO_BLOCK_SIZE)
+- {
+- /* For large copies we use 'movem' */
+-
+- /* It is not optimal to tell the compiler about clobbering any
+- registers; that will move the saving/restoring of those registers
+- to the function prologue/epilogue, and make non-movem sizes
+- suboptimal.
+-
+- This method is not foolproof; it assumes that the "asm reg"
+- declarations at the beginning of the function really are used
+- here (beware: they may be moved to temporary registers).
+- This way, we do not have to save/move the registers around into
+- temporaries; we can safely use them straight away.
+-
+- If you want to check that the allocation was right; then
+- check the equalities in the first comment. It should say
+- "r13=r13, r12=r12, r11=r11" */
+- __asm__ volatile ("
+- ;; Check that the following is true (same register names on
+- ;; both sides of equal sign, as in r8=r8):
+- ;; %0=r13, %1=r12, %4=r11
+- ;;
+- ;; Save the registers we'll clobber in the movem process
+- ;; on the stack. Don't mention them to gcc, it will only be
+- ;; upset.
+- subq 11*4,$sp
+- movem $r10,[$sp]
+-
+- move.d $r11,$r0
+- move.d $r11,$r1
+- move.d $r11,$r2
+- move.d $r11,$r3
+- move.d $r11,$r4
+- move.d $r11,$r5
+- move.d $r11,$r6
+- move.d $r11,$r7
+- move.d $r11,$r8
+- move.d $r11,$r9
+- move.d $r11,$r10
+-
+- ;; Now we've got this:
+- ;; r13 - dst
+- ;; r12 - n
+-
+- ;; Update n for the first loop
+- subq 12*4,$r12
+-0:
+- subq 12*4,$r12
+- bge 0b
+- movem $r11,[$r13+]
+-
+- addq 12*4,$r12 ;; compensate for last loop underflowing n
+-
+- ;; Restore registers from stack
+- movem [$sp+],$r10"
+-
+- /* Outputs */ : "=r" (dst), "=r" (n)
+- /* Inputs */ : "0" (dst), "1" (n), "r" (lc));
+-
+- }
+-
+- /* Either we directly starts copying, using dword copying
+- in a loop, or we copy as much as possible with 'movem'
+- and then the last block (<44 bytes) is copied here.
+- This will work since 'movem' will have updated src,dst,n. */
+-
+- while ( n >= 16 )
+- {
+- *((long*)dst)++ = lc;
+- *((long*)dst)++ = lc;
+- *((long*)dst)++ = lc;
+- *((long*)dst)++ = lc;
+- n -= 16;
+- }
++ char *xs = s;
+
+- /* A switch() is definitely the fastest although it takes a LOT of code.
+- * Particularly if you inline code this.
+- */
+- switch (n)
+- {
+- case 0:
+- break;
+- case 1:
+- *(char*)dst = (char) lc;
+- break;
+- case 2:
+- *(short*)dst = (short) lc;
+- break;
+- case 3:
+- *((short*)dst)++ = (short) lc;
+- *(char*)dst = (char) lc;
+- break;
+- case 4:
+- *((long*)dst)++ = lc;
+- break;
+- case 5:
+- *((long*)dst)++ = lc;
+- *(char*)dst = (char) lc;
+- break;
+- case 6:
+- *((long*)dst)++ = lc;
+- *(short*)dst = (short) lc;
+- break;
+- case 7:
+- *((long*)dst)++ = lc;
+- *((short*)dst)++ = (short) lc;
+- *(char*)dst = (char) lc;
+- break;
+- case 8:
+- *((long*)dst)++ = lc;
+- *((long*)dst)++ = lc;
+- break;
+- case 9:
+- *((long*)dst)++ = lc;
+- *((long*)dst)++ = lc;
+- *(char*)dst = (char) lc;
+- break;
+- case 10:
+- *((long*)dst)++ = lc;
+- *((long*)dst)++ = lc;
+- *(short*)dst = (short) lc;
+- break;
+- case 11:
+- *((long*)dst)++ = lc;
+- *((long*)dst)++ = lc;
+- *((short*)dst)++ = (short) lc;
+- *(char*)dst = (char) lc;
+- break;
+- case 12:
+- *((long*)dst)++ = lc;
+- *((long*)dst)++ = lc;
+- *((long*)dst)++ = lc;
+- break;
+- case 13:
+- *((long*)dst)++ = lc;
+- *((long*)dst)++ = lc;
+- *((long*)dst)++ = lc;
+- *(char*)dst = (char) lc;
+- break;
+- case 14:
+- *((long*)dst)++ = lc;
+- *((long*)dst)++ = lc;
+- *((long*)dst)++ = lc;
+- *(short*)dst = (short) lc;
+- break;
+- case 15:
+- *((long*)dst)++ = lc;
+- *((long*)dst)++ = lc;
+- *((long*)dst)++ = lc;
+- *((short*)dst)++ = (short) lc;
+- *(char*)dst = (char) lc;
+- break;
+- }
+- }
++ while (count--)
++ *xs++ = c;
++ return s;
++}
+
+- return return_dst; /* destination pointer. */
+-} /* memset() */
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/lib/string.c linux-2.6.19.2/arch/cris/arch-v10/lib/string.c
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/lib/string.c 2007-05-20 01:46:35.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/lib/string.c 2007-05-20 01:51:19.000000000 +0200
+@@ -33,193 +33,21 @@
+
+ #include <linux/types.h>
+
+-void *memcpy(void *pdst,
+- const void *psrc,
+- size_t pn)
++ /**
++ * memcpy - Copy one area of memory to another
++ * @dest: Where to copy to
++ * @src: Where to copy from
++ * @count: The size of the area.
++ *
++ * You should not use this function to access IO space, use memcpy_toio()
++ * or memcpy_fromio() instead.
++ */
++void *memcpy(void *dest, const void *src, size_t count)
+ {
+- /* Ok. Now we want the parameters put in special registers.
+- Make sure the compiler is able to make something useful of this.
+- As it is now: r10 -> r13; r11 -> r11 (nop); r12 -> r12 (nop).
++ char *tmp = dest;
++ const char *s = src;
+
+- If gcc was allright, it really would need no temporaries, and no
+- stack space to save stuff on. */
+-
+- register void *return_dst __asm__ ("r10") = pdst;
+- register char *dst __asm__ ("r13") = pdst;
+- register const char *src __asm__ ("r11") = psrc;
+- register int n __asm__ ("r12") = pn;
+-
+-
+- /* When src is aligned but not dst, this makes a few extra needless
+- cycles. I believe it would take as many to check that the
+- re-alignment was unnecessary. */
+- if (((unsigned long) dst & 3) != 0
+- /* Don't align if we wouldn't copy more than a few bytes; so we
+- don't have to check further for overflows. */
+- && n >= 3)
+- {
+- if ((unsigned long) dst & 1)
+- {
+- n--;
+- *(char*)dst = *(char*)src;
+- src++;
+- dst++;
+- }
+-
+- if ((unsigned long) dst & 2)
+- {
+- n -= 2;
+- *(short*)dst = *(short*)src;
+- src += 2;
+- dst += 2;
+- }
+- }
+-
+- /* Decide which copying method to use. */
+- if (n >= 44*2) /* Break even between movem and
+- move16 is at 38.7*2, but modulo 44. */
+- {
+- /* For large copies we use 'movem' */
+-
+- /* It is not optimal to tell the compiler about clobbering any
+- registers; that will move the saving/restoring of those registers
+- to the function prologue/epilogue, and make non-movem sizes
+- suboptimal.
+-
+- This method is not foolproof; it assumes that the "asm reg"
+- declarations at the beginning of the function really are used
+- here (beware: they may be moved to temporary registers).
+- This way, we do not have to save/move the registers around into
+- temporaries; we can safely use them straight away.
+-
+- If you want to check that the allocation was right; then
+- check the equalities in the first comment. It should say
+- "r13=r13, r11=r11, r12=r12" */
+- __asm__ volatile ("
+- ;; Check that the following is true (same register names on
+- ;; both sides of equal sign, as in r8=r8):
+- ;; %0=r13, %1=r11, %2=r12
+- ;;
+- ;; Save the registers we'll use in the movem process
+- ;; on the stack.
+- subq 11*4,$sp
+- movem $r10,[$sp]
+-
+- ;; Now we've got this:
+- ;; r11 - src
+- ;; r13 - dst
+- ;; r12 - n
+-
+- ;; Update n for the first loop
+- subq 44,$r12
+-0:
+- movem [$r11+],$r10
+- subq 44,$r12
+- bge 0b
+- movem $r10,[$r13+]
+-
+- addq 44,$r12 ;; compensate for last loop underflowing n
+-
+- ;; Restore registers from stack
+- movem [$sp+],$r10"
+-
+- /* Outputs */ : "=r" (dst), "=r" (src), "=r" (n)
+- /* Inputs */ : "0" (dst), "1" (src), "2" (n));
+-
+- }
+-
+- /* Either we directly starts copying, using dword copying
+- in a loop, or we copy as much as possible with 'movem'
+- and then the last block (<44 bytes) is copied here.
+- This will work since 'movem' will have updated src,dst,n. */
+-
+- while ( n >= 16 )
+- {
+- *((long*)dst)++ = *((long*)src)++;
+- *((long*)dst)++ = *((long*)src)++;
+- *((long*)dst)++ = *((long*)src)++;
+- *((long*)dst)++ = *((long*)src)++;
+- n -= 16;
+- }
+-
+- /* A switch() is definitely the fastest although it takes a LOT of code.
+- * Particularly if you inline code this.
+- */
+- switch (n)
+- {
+- case 0:
+- break;
+- case 1:
+- *(char*)dst = *(char*)src;
+- break;
+- case 2:
+- *(short*)dst = *(short*)src;
+- break;
+- case 3:
+- *((short*)dst)++ = *((short*)src)++;
+- *(char*)dst = *(char*)src;
+- break;
+- case 4:
+- *((long*)dst)++ = *((long*)src)++;
+- break;
+- case 5:
+- *((long*)dst)++ = *((long*)src)++;
+- *(char*)dst = *(char*)src;
+- break;
+- case 6:
+- *((long*)dst)++ = *((long*)src)++;
+- *(short*)dst = *(short*)src;
+- break;
+- case 7:
+- *((long*)dst)++ = *((long*)src)++;
+- *((short*)dst)++ = *((short*)src)++;
+- *(char*)dst = *(char*)src;
+- break;
+- case 8:
+- *((long*)dst)++ = *((long*)src)++;
+- *((long*)dst)++ = *((long*)src)++;
+- break;
+- case 9:
+- *((long*)dst)++ = *((long*)src)++;
+- *((long*)dst)++ = *((long*)src)++;
+- *(char*)dst = *(char*)src;
+- break;
+- case 10:
+- *((long*)dst)++ = *((long*)src)++;
+- *((long*)dst)++ = *((long*)src)++;
+- *(short*)dst = *(short*)src;
+- break;
+- case 11:
+- *((long*)dst)++ = *((long*)src)++;
+- *((long*)dst)++ = *((long*)src)++;
+- *((short*)dst)++ = *((short*)src)++;
+- *(char*)dst = *(char*)src;
+- break;
+- case 12:
+- *((long*)dst)++ = *((long*)src)++;
+- *((long*)dst)++ = *((long*)src)++;
+- *((long*)dst)++ = *((long*)src)++;
+- break;
+- case 13:
+- *((long*)dst)++ = *((long*)src)++;
+- *((long*)dst)++ = *((long*)src)++;
+- *((long*)dst)++ = *((long*)src)++;
+- *(char*)dst = *(char*)src;
+- break;
+- case 14:
+- *((long*)dst)++ = *((long*)src)++;
+- *((long*)dst)++ = *((long*)src)++;
+- *((long*)dst)++ = *((long*)src)++;
+- *(short*)dst = *(short*)src;
+- break;
+- case 15:
+- *((long*)dst)++ = *((long*)src)++;
+- *((long*)dst)++ = *((long*)src)++;
+- *((long*)dst)++ = *((long*)src)++;
+- *((short*)dst)++ = *((short*)src)++;
+- *(char*)dst = *(char*)src;
+- break;
+- }
+-
+- return return_dst; /* destination pointer. */
+-} /* memcpy() */
++ while (count--)
++ *tmp++ = *s++;
++ return dest;
++}
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/lib/usercopy.c linux-2.6.19.2/arch/cris/arch-v10/lib/usercopy.c
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/lib/usercopy.c 2007-05-16 22:11:26.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/lib/usercopy.c 2007-05-16 23:17:41.000000000 +0200
+@@ -88,63 +88,38 @@
+ If you want to check that the allocation was right; then
+ check the equalities in the first comment. It should say
+ "r13=r13, r11=r11, r12=r12". */
+- __asm__ volatile ("\
+- .ifnc %0%1%2%3,$r13$r11$r12$r10 \n\
+- .err \n\
+- .endif \n\
+-
+- ;; Save the registers we'll use in the movem process
+- ;; on the stack.
+- subq 11*4,$sp
+- movem $r10,[$sp]
+-
+- ;; Now we've got this:
+- ;; r11 - src
+- ;; r13 - dst
+- ;; r12 - n
+-
+- ;; Update n for the first loop
+- subq 44,$r12
+-
+-; Since the noted PC of a faulting instruction in a delay-slot of a taken
+-; branch, is that of the branch target, we actually point at the from-movem
+-; for this case. There is no ambiguity here; if there was a fault in that
+-; instruction (meaning a kernel oops), the faulted PC would be the address
+-; after *that* movem.
+-
+-0:
+- movem [$r11+],$r10
+- subq 44,$r12
+- bge 0b
+- movem $r10,[$r13+]
+-1:
+- addq 44,$r12 ;; compensate for last loop underflowing n
+-
+- ;; Restore registers from stack
+- movem [$sp+],$r10
+-2:
+- .section .fixup,\"ax\"
+-
+-; To provide a correct count in r10 of bytes that failed to be copied,
+-; we jump back into the loop if the loop-branch was taken. There is no
+-; performance penalty for sany use; the program will segfault soon enough.
+-
+-3:
+- move.d [$sp],$r10
+- addq 44,$r10
+- move.d $r10,[$sp]
+- jump 0b
+-4:
+- movem [$sp+],$r10
+- addq 44,$r10
+- addq 44,$r12
+- jump 2b
+-
+- .previous
+- .section __ex_table,\"a\"
+- .dword 0b,3b
+- .dword 1b,4b
+- .previous"
++ __asm__ volatile (
++ ".ifnc %0%1%2%3,$r13$r11$r12$r10 \n\t"
++ ".err \n\t"
++ ".endif \n\t"
++ "subq 11*4,$sp\n\t"
++ "movem $r10,[$sp]\n\t"
++ "subq 44,$r12\n\t"
++ "0:\n\t"
++ "movem [$r11+],$r10\n\t"
++ "subq 44,$r12\n\t"
++ "bge 0b\n\t"
++ "movem $r10,[$r13+]\n\t"
++ "1:\n\t"
++ "addq 44,$r12 \n\t"
++ "movem [$sp+],$r10\n\t"
++ "2:\n\t"
++ ".section .fixup,\"ax\"\n\t"
++ "3:\n\t"
++ "move.d [$sp],$r10\n\t"
++ "addq 44,$r10\n\t"
++ "move.d $r10,[$sp]\n\t"
++ "jump 0b\n\t"
++ "4:\n\t"
++ "movem [$sp+],$r10\n\t"
++ "addq 44,$r10\n\t"
++ "addq 44,$r12\n\t"
++ "jump 2b\n\t"
++ ".previous\n\t"
++ ".section __ex_table,\"a\"\n\t"
++ ".dword 0b,3b\n\t"
++ ".dword 1b,4b\n\t"
++ ".previous\n\t"
+
+ /* Outputs */ : "=r" (dst), "=r" (src), "=r" (n), "=r" (retn)
+ /* Inputs */ : "0" (dst), "1" (src), "2" (n), "3" (retn));
+@@ -253,60 +228,32 @@
+ If you want to check that the allocation was right; then
+ check the equalities in the first comment. It should say
+ "r13=r13, r11=r11, r12=r12" */
+- __asm__ volatile ("
+- .ifnc %0%1%2%3,$r13$r11$r12$r10 \n\
+- .err \n\
+- .endif \n\
+-
+- ;; Save the registers we'll use in the movem process
+- ;; on the stack.
+- subq 11*4,$sp
+- movem $r10,[$sp]
+-
+- ;; Now we've got this:
+- ;; r11 - src
+- ;; r13 - dst
+- ;; r12 - n
+-
+- ;; Update n for the first loop
+- subq 44,$r12
+-0:
+- movem [$r11+],$r10
+-1:
+- subq 44,$r12
+- bge 0b
+- movem $r10,[$r13+]
+-
+- addq 44,$r12 ;; compensate for last loop underflowing n
+-
+- ;; Restore registers from stack
+- movem [$sp+],$r10
+-4:
+- .section .fixup,\"ax\"
+-
+-;; Do not jump back into the loop if we fail. For some uses, we get a
+-;; page fault somewhere on the line. Without checking for page limits,
+-;; we don't know where, but we need to copy accurately and keep an
+-;; accurate count; not just clear the whole line. To do that, we fall
+-;; down in the code below, proceeding with smaller amounts. It should
+-;; be kept in mind that we have to cater to code like what at one time
+-;; was in fs/super.c:
+-;; i = size - copy_from_user((void *)page, data, size);
+-;; which would cause repeated faults while clearing the remainder of
+-;; the SIZE bytes at PAGE after the first fault.
+-;; A caveat here is that we must not fall through from a failing page
+-;; to a valid page.
+-
+-3:
+- movem [$sp+],$r10
+- addq 44,$r12 ;; Get back count before faulting point.
+- subq 44,$r11 ;; Get back pointer to faulting movem-line.
+- jump 4b ;; Fall through, pretending the fault didn't happen.
+-
+- .previous
+- .section __ex_table,\"a\"
+- .dword 1b,3b
+- .previous"
++ __asm__ volatile (
++ ".ifnc %0%1%2%3,$r13$r11$r12$r10 \n\t"
++ ".err \n\t"
++ ".endif \n\t"
++ "subq 11*4,$sp\n\t"
++ "movem $r10,[$sp]\n\t"
++ "subq 44,$r12\n\t"
++ "0:\n\t"
++ "movem [$r11+],$r10\n\t"
++ "1:\n\t"
++ "subq 44,$r12\n\t"
++ "bge 0b\n\t"
++ "movem $r10,[$r13+]\n\t"
++ "addq 44,$r12 \n\t"
++ "movem [$sp+],$r10\n\t"
++ "4:\n\t"
++ ".section .fixup,\"ax\"\n\t"
++ "3:\n\t"
++ "movem [$sp+],$r10\n\t"
++ "addq 44,$r12\n\t"
++ "subq 44,$r11\n\t"
++ "jump 4b \n\t"
++ ".previous\n\t"
++ ".section __ex_table,\"a\"\n\t"
++ ".dword 1b,3b\n\t"
++ ".previous\n\t"
+
+ /* Outputs */ : "=r" (dst), "=r" (src), "=r" (n), "=r" (retn)
+ /* Inputs */ : "0" (dst), "1" (src), "2" (n), "3" (retn));
+@@ -425,66 +372,50 @@
+ If you want to check that the allocation was right; then
+ check the equalities in the first comment. It should say
+ something like "r13=r13, r11=r11, r12=r12". */
+- __asm__ volatile ("
+- .ifnc %0%1%2,$r13$r12$r10 \n\
+- .err \n\
+- .endif \n\
+-
+- ;; Save the registers we'll clobber in the movem process
+- ;; on the stack. Don't mention them to gcc, it will only be
+- ;; upset.
+- subq 11*4,$sp
+- movem $r10,[$sp]
+-
+- clear.d $r0
+- clear.d $r1
+- clear.d $r2
+- clear.d $r3
+- clear.d $r4
+- clear.d $r5
+- clear.d $r6
+- clear.d $r7
+- clear.d $r8
+- clear.d $r9
+- clear.d $r10
+- clear.d $r11
+-
+- ;; Now we've got this:
+- ;; r13 - dst
+- ;; r12 - n
+-
+- ;; Update n for the first loop
+- subq 12*4,$r12
+-0:
+- subq 12*4,$r12
+- bge 0b
+- movem $r11,[$r13+]
+-1:
+- addq 12*4,$r12 ;; compensate for last loop underflowing n
+-
+- ;; Restore registers from stack
+- movem [$sp+],$r10
+-2:
+- .section .fixup,\"ax\"
+-3:
+- move.d [$sp],$r10
+- addq 12*4,$r10
+- move.d $r10,[$sp]
+- clear.d $r10
+- jump 0b
+-
+-4:
+- movem [$sp+],$r10
+- addq 12*4,$r10
+- addq 12*4,$r12
+- jump 2b
+-
+- .previous
+- .section __ex_table,\"a\"
+- .dword 0b,3b
+- .dword 1b,4b
+- .previous"
+-
++ __asm__ volatile (
++ ".ifnc %0%1%2,$r13$r12$r10\n\t"
++ ".err \n\t"
++ ".endif\n\t"
++ "subq 11*4,$sp\n\t"
++ "movem $r10,[$sp]\n\t"
++ "clear.d $r0\n\t"
++ "clear.d $r1\n\t"
++ "clear.d $r2\n\t"
++ "clear.d $r3\n\t"
++ "clear.d $r4\n\t"
++ "clear.d $r5\n\t"
++ "clear.d $r6\n\t"
++ "clear.d $r7\n\t"
++ "clear.d $r8\n\t"
++ "clear.d $r9\n\t"
++ "clear.d $r10\n\t"
++ "clear.d $r11\n\t"
++ "subq 12*4,$r12\n\t"
++ "0:\n\t"
++ "subq 12*4,$r12\n\t"
++ "bge 0b\n\t"
++ "movem $r11,[$r13+]\n\t"
++ "1: \n\t"
++ "addq 12*4,$r12 \n\t"
++ "movem [$sp+],$r10\n\t"
++ "2:\n\t"
++ ".section .fixup,\"ax\"\n\t"
++ "3:\n\t"
++ "move.d [$sp],$r10\n\t"
++ "addq 12*4,$r10\n\t"
++ "move.d $r10,[$sp]\n\t"
++ "clear.d $r10\n\t"
++ "jump 0b\n\t"
++ "4:\n\t"
++ "movem [$sp+],$r10\n\t"
++ "addq 12*4,$r10\n\t"
++ "addq 12*4,$r12\n\t"
++ "jump 2b\n\t"
++ ".previous\n\t"
++ ".section __ex_table,\"a\"\n\t"
++ ".dword 0b,3b\n\t"
++ ".dword 1b,4b\n\t"
++ ".previous\n\t"
+ /* Outputs */ : "=r" (dst), "=r" (n), "=r" (retn)
+ /* Inputs */ : "0" (dst), "1" (n), "2" (retn)
+ /* Clobber */ : "r11");
diff --git a/target/linux/etrax-2.6/patches/cris/007-nr_free_pages.patch b/target/linux/etrax-2.6/patches/cris/007-nr_free_pages.patch
new file mode 100644
index 0000000000..235b000ded
--- /dev/null
+++ b/target/linux/etrax-2.6/patches/cris/007-nr_free_pages.patch
@@ -0,0 +1,12 @@
+diff -urN linux-2.6.19.2.orig/mm/page_alloc.c linux-2.6.19.2/mm/page_alloc.c
+--- linux-2.6.19.2.orig/mm/page_alloc.c 2007-05-20 03:26:41.000000000 +0200
++++ linux-2.6.19.2/mm/page_alloc.c 2007-05-20 03:28:22.000000000 +0200
+@@ -1200,7 +1200,7 @@
+ unsigned int nr_free_pages(void)
+ {
+ unsigned int sum = 0;
+- struct zone *zone;
++ volatile struct zone *zone;
+
+ for_each_zone(zone)
+ sum += zone->free_pages;
diff --git a/target/linux/etrax-2.6/patches/cris/008-flashmap.patch b/target/linux/etrax-2.6/patches/cris/008-flashmap.patch
new file mode 100644
index 0000000000..63ee023e08
--- /dev/null
+++ b/target/linux/etrax-2.6/patches/cris/008-flashmap.patch
@@ -0,0 +1,41 @@
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/axisflashmap.c linux-2.6.19.2/arch/cris/arch-v10/drivers/axisflashmap.c
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/axisflashmap.c 2007-05-21 23:12:27.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/drivers/axisflashmap.c 2007-05-21 23:13:09.000000000 +0200
+@@ -256,7 +256,7 @@
+
+ /* If no partition-table was found, we use this default-set. */
+ #define MAX_PARTITIONS 7
+-#define NUM_DEFAULT_PARTITIONS 3
++#define NUM_DEFAULT_PARTITIONS 3
+
+ /*
+ * Default flash size is 2MB. CONFIG_ETRAX_PTABLE_SECTOR is most likely the
+@@ -265,19 +265,19 @@
+ */
+ static struct mtd_partition axis_default_partitions[NUM_DEFAULT_PARTITIONS] = {
+ {
+- .name = "boot firmware",
+- .size = CONFIG_ETRAX_PTABLE_SECTOR,
++ .name = "kernel",
++ .size = 0x200000,
+ .offset = 0
+ },
+ {
+- .name = "kernel",
+- .size = 0x200000 - (6 * CONFIG_ETRAX_PTABLE_SECTOR),
+- .offset = CONFIG_ETRAX_PTABLE_SECTOR
++ .name = "filesystem",
++ .size = 0x200000,
++ .offset = 0x200000
+ },
+ {
+- .name = "filesystem",
+- .size = 5 * CONFIG_ETRAX_PTABLE_SECTOR,
+- .offset = 0x200000 - (5 * CONFIG_ETRAX_PTABLE_SECTOR)
++ .name = "filesystem2",
++ .size = 0x400000,
++ .offset = 0x400000
+ }
+ };
+
+009-flashmap.patch
diff --git a/target/linux/etrax-2.6/patches/cris/008a-flashmap.patch b/target/linux/etrax-2.6/patches/cris/008a-flashmap.patch
new file mode 100644
index 0000000000..dfb5d08300
--- /dev/null
+++ b/target/linux/etrax-2.6/patches/cris/008a-flashmap.patch
@@ -0,0 +1,33 @@
+Binary files linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/.axisflashmap.c.swp and linux-2.6.19.2/arch/cris/arch-v10/drivers/.axisflashmap.c.swp differ
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/axisflashmap.c linux-2.6.19.2/arch/cris/arch-v10/drivers/axisflashmap.c
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/axisflashmap.c 2007-05-28 01:40:09.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/drivers/axisflashmap.c 2007-05-28 01:41:29.000000000 +0200
+@@ -256,7 +256,7 @@
+
+ /* If no partition-table was found, we use this default-set. */
+ #define MAX_PARTITIONS 7
+-#define NUM_DEFAULT_PARTITIONS 3
++#define NUM_DEFAULT_PARTITIONS 2
+
+ /*
+ * Default flash size is 2MB. CONFIG_ETRAX_PTABLE_SECTOR is most likely the
+@@ -270,15 +270,10 @@
+ .offset = 0
+ },
+ {
+- .name = "filesystem",
+- .size = 0x200000,
++ .name = "rootfs",
++ .size = 0x600000,
+ .offset = 0x200000
+ },
+- {
+- .name = "filesystem2",
+- .size = 0x400000,
+- .offset = 0x400000
+- }
+ };
+
+ /* Initialize the ones normally used. */
+Binary files linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/axisflashmap.o and linux-2.6.19.2/arch/cris/arch-v10/drivers/axisflashmap.o differ
+Binary files linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/built-in.o and linux-2.6.19.2/arch/cris/arch-v10/drivers/built-in.o differ
diff --git a/target/linux/etrax-2.6/patches/cris/009-sysfs.patch b/target/linux/etrax-2.6/patches/cris/009-sysfs.patch
new file mode 100644
index 0000000000..4988a20fc3
--- /dev/null
+++ b/target/linux/etrax-2.6/patches/cris/009-sysfs.patch
@@ -0,0 +1,83 @@
+--- linux-2.6.19.2.orig/drivers/serial/crisv10.c 2007-05-26 18:12:33.000000000 +0200
++++ linux-2.6.19.2/drivers/serial/crisv10.c 2007-05-26 19:24:56.000000000 +0200
+@@ -442,6 +442,7 @@
+ #include <asm/uaccess.h>
+ #include <linux/kernel.h>
+ #include <linux/mutex.h>
++#include <linux/miscdevice.h>
+
+ #include <asm/io.h>
+ #include <asm/irq.h>
+@@ -4822,6 +4823,12 @@
+ .tiocmset = rs_tiocmset
+ };
+
++#define CONFIG_ETRAX_SYSFS_NODES
++#ifdef CONFIG_ETRAX_SYSFS_NODES
++static struct class *mem_class;
++#endif
++
++static struct class *rs_class;
+ static int __init
+ rs_init(void)
+ {
+@@ -4948,6 +4955,30 @@
+ #endif
+ #endif /* CONFIG_SVINTO_SIM */
+
++#ifdef CONFIG_ETRAX_SYSFS_NODES
++
++ rs_class = class_create(THIS_MODULE, "rs_tty");
++#ifdef CONFIG_ETRAX_SERIAL_PORT0
++ class_device_create(rs_class, NULL,
++ MKDEV(TTY_MAJOR, 64),
++ NULL, "ttyS0");
++#endif
++#ifdef CONFIG_ETRAX_SERIAL_PORT1
++ class_device_create(rs_class, NULL,
++ MKDEV(TTY_MAJOR, 65),
++ NULL, "ttyS1");
++#endif
++#ifdef CONFIG_ETRAX_SERIAL_PORT2
++ class_device_create(rs_class, NULL,
++ MKDEV(TTY_MAJOR, 66),
++ NULL, "ttyS2");
++#endif
++#ifdef CONFIG_ETRAX_SERIAL_PORT3
++ class_device_create(rs_class, NULL,
++ MKDEV(TTY_MAJOR, 67),
++ NULL, "ttyS3");
++#endif
++#endif
+ return 0;
+ }
+
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/Kconfig 2007-05-26 18:12:22.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/drivers/Kconfig 2007-05-26 19:26:06.000000000 +0200
+@@ -900,3 +900,9 @@
+ 1 = 2kohm, 2 = 4kohm, 3 = 4kohm
+ 4 = 1 diode, 8 = 2 diodes
+ Allowed values are (increasing current): 0, 11, 10, 9, 7, 6, 5
++
++config ETRAX_SYSFS_NODES
++ bool "Create device nodes using sysfs for builtin devices"
++ default n
++ help
++ Creates device nodes inside the rootfs dynamically for all the builtin devices
+--- linux-2.6.19.2.orig/drivers/serial/crisv10.c 2007-05-28 20:37:56.000000000 +0200
++++ linux-2.6.19.2/drivers/serial/crisv10.c 2007-05-28 20:39:07.000000000 +0200
+@@ -4823,12 +4823,11 @@
+ .tiocmset = rs_tiocmset
+ };
+
+-#define CONFIG_ETRAX_SYSFS_NODES
+ #ifdef CONFIG_ETRAX_SYSFS_NODES
+-static struct class *mem_class;
++static struct class *rs_class;
+ #endif
+
+-static struct class *rs_class;
++
+ static int __init
+ rs_init(void)
+ {
diff --git a/target/linux/etrax-2.6/patches/cris/010-multi-target-build.patch b/target/linux/etrax-2.6/patches/cris/010-multi-target-build.patch
new file mode 100644
index 0000000000..9d3a28b502
--- /dev/null
+++ b/target/linux/etrax-2.6/patches/cris/010-multi-target-build.patch
@@ -0,0 +1,1973 @@
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/Makefile linux-2.6.19.2/arch/cris/arch-v10/boot/Makefile
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/Makefile 2007-05-28 16:28:34.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/Makefile 2007-05-28 17:24:26.000000000 +0200
+@@ -5,7 +5,7 @@
+ OBJCOPY = /usr/local/cris/objcopy-cris
+ OBJCOPYFLAGS = -O binary --remove-section=.bss
+
+-subdir- := compressed rescue
++subdir- := compressed
+ targets := Image
+
+ $(obj)/Image: vmlinux FORCE
+@@ -14,8 +14,12 @@
+
+ $(obj)/compressed/vmlinux: $(obj)/Image FORCE
+ $(Q)$(MAKE) $(build)=$(obj)/compressed $@
+- $(Q)$(MAKE) $(build)=$(obj)/rescue $(obj)/rescue/rescue.bin
+
+ $(obj)/zImage: $(obj)/compressed/vmlinux
+ @cp $< $@
++ @cp $(obj)/compressed/vmlinux $(obj)/zImage_custom
++ @cp $(obj)/compressed/vmlinux_MCM $(obj)/zImage_MCM
++ @cp $(obj)/compressed/vmlinux_416 $(obj)/zImage_416
++ @cp $(obj)/compressed/vmlinux_816 $(obj)/zImage_816
++ @cp $(obj)/compressed/vmlinux_832 $(obj)/zImage_832
+ @echo ' Kernel: $@ is ready'
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/Makefile linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/Makefile
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/Makefile 2007-05-28 16:28:34.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/Makefile 2007-05-28 17:03:02.000000000 +0200
+@@ -17,18 +17,34 @@
+
+ $(obj)/decompress.o: $(OBJECTS) FORCE
+ $(call if_changed,ld)
++ $(LD) $(LDFLAGS) arch/cris/boot/compressed/head_MCM.o arch/cris/boot/compressed/misc.o -o arch/cris/boot/compressed/decompress_MCM.o
++ $(LD) $(LDFLAGS) arch/cris/boot/compressed/head_416.o arch/cris/boot/compressed/misc.o -o arch/cris/boot/compressed/decompress_416.o
++ $(LD) $(LDFLAGS) arch/cris/boot/compressed/head_816.o arch/cris/boot/compressed/misc.o -o arch/cris/boot/compressed/decompress_816.o
++ $(LD) $(LDFLAGS) arch/cris/boot/compressed/head_832.o arch/cris/boot/compressed/misc.o -o arch/cris/boot/compressed/decompress_832.o
+
+ $(obj)/decompress.bin: $(obj)/decompress.o FORCE
+ $(call if_changed,objcopy)
++ $(OBJCOPY) $(OBJCOPYFLAGS) $(obj)/decompress_MCM.o $(obj)/decompress_MCM.bin
++ $(OBJCOPY) $(OBJCOPYFLAGS) $(obj)/decompress_416.o $(obj)/decompress_416.bin
++ $(OBJCOPY) $(OBJCOPYFLAGS) $(obj)/decompress_816.o $(obj)/decompress_816.bin
++ $(OBJCOPY) $(OBJCOPYFLAGS) $(obj)/decompress_832.o $(obj)/decompress_832.bin
++
++$(obj)/head.o: $(obj)/head.S .config FORCE
++ /usr/local/cris/gcc-cris -melf -Iinclude -include include/linux/autoconf.h -D__ASSEMBLY__ -traditional -c $< -o $@
++ /usr/local/cris/gcc-cris -melf -Iinclude -include include/linux/autoconf.h -D__ASSEMBLY__ -traditional -c arch/cris/boot/compressed/head_MCM.S -o arch/cris/boot/compressed/head_MCM.o
++ /usr/local/cris/gcc-cris -melf -Iinclude -include include/linux/autoconf.h -D__ASSEMBLY__ -traditional -c arch/cris/boot/compressed/head_416.S -o arch/cris/boot/compressed/head_416.o
++ /usr/local/cris/gcc-cris -melf -Iinclude -include include/linux/autoconf.h -D__ASSEMBLY__ -traditional -c arch/cris/boot/compressed/head_816.S -o arch/cris/boot/compressed/head_816.o
++ /usr/local/cris/gcc-cris -melf -Iinclude -include include/linux/autoconf.h -D__ASSEMBLY__ -traditional -c arch/cris/boot/compressed/head_832.S -o arch/cris/boot/compressed/head_832.o
+
+-$(obj)/head.o: $(obj)/head.S .config
+- /usr/local/cris/gcc-cris -melf $(LINUXINCLUDE) -D__ASSEMBLY__ -traditional -c $< -o $@
+-
+-$(obj)/misc.o: $(obj)/misc.c .config
++$(obj)/misc.o: $(obj)/misc.c .config FORCE
+ /usr/local/cris/gcc-cris -melf $(LINUXINCLUDE) -D__KERNEL__ -c $< -o $@
+
+ $(obj)/vmlinux: $(obj)/piggy.gz $(obj)/decompress.bin FORCE
+ $(call if_changed,image)
++ cat $(obj)/decompress_MCM.bin $(obj)/piggy.gz > $(obj)/vmlinux_MCM
++ cat $(obj)/decompress_416.bin $(obj)/piggy.gz > $(obj)/vmlinux_416
++ cat $(obj)/decompress_816.bin $(obj)/piggy.gz > $(obj)/vmlinux_816
++ cat $(obj)/decompress_832.bin $(obj)/piggy.gz > $(obj)/vmlinux_832
+
+ $(obj)/piggy.gz: $(obj)/../Image FORCE
+ $(call if_changed,gzip)
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init.S
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init.S 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init.S 2007-05-28 16:42:15.000000000 +0200
+@@ -0,0 +1,207 @@
++/* $Id: dram_init.S,v 1.5 2006/10/13 12:43:11 starvik Exp $
++ *
++ * DRAM/SDRAM initialization - alter with care
++ * This file is intended to be included from other assembler files
++ *
++ * Note: This file may not modify r9 because r9 is used to carry
++ * information from the decompresser to the kernel
++ *
++ * Copyright (C) 2000, 2001 Axis Communications AB
++ *
++ * Authors: Mikael Starvik (starvik@axis.com)
++ *
++ * $Log: dram_init.S,v $
++ * Revision 1.5 2006/10/13 12:43:11 starvik
++ * Merge of 2.6.18
++ *
++ * Revision 1.4 2003/09/22 09:21:59 starvik
++ * Decompresser is linked to 0x407xxxxx and sdram commands are at 0x000xxxxx
++ * so we need to mask off 12 bits.
++ *
++ * Revision 1.3 2003/03/31 09:38:37 starvik
++ * Corrected calculation of end of sdram init commands
++ *
++ * Revision 1.2 2002/11/19 13:33:29 starvik
++ * Changes from Linux 2.4
++ *
++ * Revision 1.13 2002/10/30 07:42:28 starvik
++ * Always read SDRAM command sequence from flash
++ *
++ * Revision 1.12 2002/08/09 11:37:37 orjanf
++ * Added double initialization work-around for Samsung SDRAMs.
++ *
++ * Revision 1.11 2002/06/04 11:43:21 starvik
++ * Check if mrs_data is specified in kernelconfig (necessary for MCM)
++ *
++ * Revision 1.10 2001/10/04 12:00:21 martinnn
++ * Added missing underscores.
++ *
++ * Revision 1.9 2001/10/01 14:47:35 bjornw
++ * Added register prefixes and removed underscores
++ *
++ * Revision 1.8 2001/05/15 07:12:45 hp
++ * Copy warning from head.S about r8 and r9
++ *
++ * Revision 1.7 2001/04/18 12:05:39 bjornw
++ * Fixed comments, and explicitely include config.h to be sure its there
++ *
++ * Revision 1.6 2001/04/10 06:20:16 starvik
++ * Delay should be 200us, not 200ns
++ *
++ * Revision 1.5 2001/04/09 06:01:13 starvik
++ * Added support for 100 MHz SDRAMs
++ *
++ * Revision 1.4 2001/03/26 14:24:01 bjornw
++ * Namechange of some config options
++ *
++ * Revision 1.3 2001/03/23 08:29:41 starvik
++ * Corrected calculation of mrs_data
++ *
++ * Revision 1.2 2001/02/08 15:20:00 starvik
++ * Corrected SDRAM initialization
++ * Should now be included as inline
++ *
++ * Revision 1.1 2001/01/29 13:08:02 starvik
++ * Initial version
++ * This file should be included from all assembler files that needs to
++ * initialize DRAM/SDRAM.
++ *
++ */
++
++/* Just to be certain the config file is included, we include it here
++ * explicitely instead of depending on it being included in the file that
++ * uses this code.
++ */
++
++
++ ;; WARNING! The registers r8 and r9 are used as parameters carrying
++ ;; information from the decompressor (if the kernel was compressed).
++ ;; They should not be used in the code below.
++
++#ifndef CONFIG_SVINTO_SIM
++ move.d CONFIG_ETRAX_DEF_R_WAITSTATES, $r0
++ move.d $r0, [R_WAITSTATES]
++
++ move.d CONFIG_ETRAX_DEF_R_BUS_CONFIG, $r0
++ move.d $r0, [R_BUS_CONFIG]
++
++#ifndef CONFIG_ETRAX_SDRAM
++ move.d CONFIG_ETRAX_DEF_R_DRAM_CONFIG, $r0
++ move.d $r0, [R_DRAM_CONFIG]
++
++ move.d CONFIG_ETRAX_DEF_R_DRAM_TIMING, $r0
++ move.d $r0, [R_DRAM_TIMING]
++#else
++ ;; Samsung SDRAMs seem to require to be initialized twice to work properly.
++ moveq 2, $r6
++_sdram_init:
++
++ ; Refer to ETRAX 100LX Designers Reference for a description of SDRAM initialization
++
++ ; Bank configuration
++ move.d CONFIG_ETRAX_DEF_R_SDRAM_CONFIG, $r0
++ move.d $r0, [R_SDRAM_CONFIG]
++
++ ; Calculate value of mrs_data
++ ; CAS latency = 2 && bus_width = 32 => 0x40
++ ; CAS latency = 3 && bus_width = 32 => 0x60
++ ; CAS latency = 2 && bus_width = 16 => 0x20
++ ; CAS latency = 3 && bus_width = 16 => 0x30
++
++ ; Check if value is already supplied in kernel config
++ move.d CONFIG_ETRAX_DEF_R_SDRAM_TIMING, $r2
++ and.d 0x00ff0000, $r2
++ bne _set_timing
++ lsrq 16, $r2
++
++ move.d 0x40, $r2 ; Assume 32 bits and CAS latency = 2
++ move.d CONFIG_ETRAX_DEF_R_SDRAM_TIMING, $r1
++ move.d $r1, $r3
++ and.d 0x03, $r1 ; Get CAS latency
++ and.d 0x1000, $r3 ; 50 or 100 MHz?
++ beq _speed_50
++ nop
++_speed_100:
++ cmp.d 0x00, $r1 ; CAS latency = 2?
++ beq _bw_check
++ nop
++ or.d 0x20, $r2 ; CAS latency = 3
++ ba _bw_check
++ nop
++_speed_50:
++ cmp.d 0x01, $r1 ; CAS latency = 2?
++ beq _bw_check
++ nop
++ or.d 0x20, $r2 ; CAS latency = 3
++_bw_check:
++ move.d CONFIG_ETRAX_DEF_R_SDRAM_CONFIG, $r1
++ and.d 0x800000, $r1 ; DRAM width is bit 23
++ bne _set_timing
++ nop
++ lsrq 1, $r2 ; 16 bits. Shift down value.
++
++ ; Set timing parameters. Starts master clock
++_set_timing:
++ move.d CONFIG_ETRAX_DEF_R_SDRAM_TIMING, $r1
++ and.d 0x8000f9ff, $r1 ; Make sure mrs data and command is 0
++ or.d 0x80000000, $r1 ; Make sure sdram enable bit is set
++ move.d $r1, $r5
++ or.d 0x0000c000, $r1 ; ref = disable
++ lslq 16, $r2 ; mrs data starts at bit 16
++ or.d $r2, $r1
++ move.d $r1, [R_SDRAM_TIMING]
++
++ ; Wait 200us
++ move.d 10000, $r2
++1: bne 1b
++ subq 1, $r2
++
++ ; Issue initialization command sequence
++ move.d _sdram_commands_start, $r2
++ and.d 0x000fffff, $r2 ; Make sure commands are read from flash
++ move.d _sdram_commands_end, $r3
++ and.d 0x000fffff, $r3
++1: clear.d $r4
++ move.b [$r2+], $r4
++ lslq 9, $r4 ; Command starts at bit 9
++ or.d $r1, $r4
++ move.d $r4, [R_SDRAM_TIMING]
++ nop ; Wait five nop cycles between each command
++ nop
++ nop
++ nop
++ nop
++ cmp.d $r2, $r3
++ bne 1b
++ nop
++ move.d $r5, [R_SDRAM_TIMING]
++ subq 1, $r6
++ bne _sdram_init
++ nop
++ ba _sdram_commands_end
++ nop
++
++_sdram_commands_start:
++ .byte 3 ; Precharge
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 1 ; mrs
++ .byte 0 ; nop
++_sdram_commands_end:
++#endif
++#endif
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init_416.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init_416.S
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init_416.S 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init_416.S 2007-05-28 20:02:25.000000000 +0200
+@@ -0,0 +1,207 @@
++/* $Id: dram_init.S,v 1.5 2006/10/13 12:43:11 starvik Exp $
++ *
++ * DRAM/SDRAM initialization - alter with care
++ * This file is intended to be included from other assembler files
++ *
++ * Note: This file may not modify r9 because r9 is used to carry
++ * information from the decompresser to the kernel
++ *
++ * Copyright (C) 2000, 2001 Axis Communications AB
++ *
++ * Authors: Mikael Starvik (starvik@axis.com)
++ *
++ * $Log: dram_init.S,v $
++ * Revision 1.5 2006/10/13 12:43:11 starvik
++ * Merge of 2.6.18
++ *
++ * Revision 1.4 2003/09/22 09:21:59 starvik
++ * Decompresser is linked to 0x407xxxxx and sdram commands are at 0x000xxxxx
++ * so we need to mask off 12 bits.
++ *
++ * Revision 1.3 2003/03/31 09:38:37 starvik
++ * Corrected calculation of end of sdram init commands
++ *
++ * Revision 1.2 2002/11/19 13:33:29 starvik
++ * Changes from Linux 2.4
++ *
++ * Revision 1.13 2002/10/30 07:42:28 starvik
++ * Always read SDRAM command sequence from flash
++ *
++ * Revision 1.12 2002/08/09 11:37:37 orjanf
++ * Added double initialization work-around for Samsung SDRAMs.
++ *
++ * Revision 1.11 2002/06/04 11:43:21 starvik
++ * Check if mrs_data is specified in kernelconfig (necessary for MCM)
++ *
++ * Revision 1.10 2001/10/04 12:00:21 martinnn
++ * Added missing underscores.
++ *
++ * Revision 1.9 2001/10/01 14:47:35 bjornw
++ * Added register prefixes and removed underscores
++ *
++ * Revision 1.8 2001/05/15 07:12:45 hp
++ * Copy warning from head.S about r8 and r9
++ *
++ * Revision 1.7 2001/04/18 12:05:39 bjornw
++ * Fixed comments, and explicitely include config.h to be sure its there
++ *
++ * Revision 1.6 2001/04/10 06:20:16 starvik
++ * Delay should be 200us, not 200ns
++ *
++ * Revision 1.5 2001/04/09 06:01:13 starvik
++ * Added support for 100 MHz SDRAMs
++ *
++ * Revision 1.4 2001/03/26 14:24:01 bjornw
++ * Namechange of some config options
++ *
++ * Revision 1.3 2001/03/23 08:29:41 starvik
++ * Corrected calculation of mrs_data
++ *
++ * Revision 1.2 2001/02/08 15:20:00 starvik
++ * Corrected SDRAM initialization
++ * Should now be included as inline
++ *
++ * Revision 1.1 2001/01/29 13:08:02 starvik
++ * Initial version
++ * This file should be included from all assembler files that needs to
++ * initialize DRAM/SDRAM.
++ *
++ */
++
++/* Just to be certain the config file is included, we include it here
++ * explicitely instead of depending on it being included in the file that
++ * uses this code.
++ */
++
++
++ ;; WARNING! The registers r8 and r9 are used as parameters carrying
++ ;; information from the decompressor (if the kernel was compressed).
++ ;; They should not be used in the code below.
++
++#ifndef CONFIG_SVINTO_SIM
++ move.d CONFIG_ETRAX_DEF_R_WAITSTATES, $r0
++ move.d $r0, [R_WAITSTATES]
++
++ move.d CONFIG_ETRAX_DEF_R_BUS_CONFIG, $r0
++ move.d $r0, [R_BUS_CONFIG]
++
++#ifndef CONFIG_ETRAX_SDRAM
++ move.d CONFIG_ETRAX_DEF_R_DRAM_CONFIG, $r0
++ move.d $r0, [R_DRAM_CONFIG]
++
++ move.d CONFIG_ETRAX_DEF_R_DRAM_TIMING, $r0
++ move.d $r0, [R_DRAM_TIMING]
++#else
++ ;; Samsung SDRAMs seem to require to be initialized twice to work properly.
++ moveq 2, $r6
++_sdram_init:
++
++ ; Refer to ETRAX 100LX Designers Reference for a description of SDRAM initialization
++
++ ; Bank configuration
++ move.d 0x09603636, $r0
++ move.d $r0, [R_SDRAM_CONFIG]
++
++ ; Calculate value of mrs_data
++ ; CAS latency = 2 && bus_width = 32 => 0x40
++ ; CAS latency = 3 && bus_width = 32 => 0x60
++ ; CAS latency = 2 && bus_width = 16 => 0x20
++ ; CAS latency = 3 && bus_width = 16 => 0x30
++
++ ; Check if value is already supplied in kernel config
++ move.d 0x80008002, $r2
++ and.d 0x00ff0000, $r2
++ bne _set_timing
++ lsrq 16, $r2
++
++ move.d 0x40, $r2 ; Assume 32 bits and CAS latency = 2
++ move.d 0x80008002, $r1
++ move.d $r1, $r3
++ and.d 0x03, $r1 ; Get CAS latency
++ and.d 0x1000, $r3 ; 50 or 100 MHz?
++ beq _speed_50
++ nop
++_speed_100:
++ cmp.d 0x00, $r1 ; CAS latency = 2?
++ beq _bw_check
++ nop
++ or.d 0x20, $r2 ; CAS latency = 3
++ ba _bw_check
++ nop
++_speed_50:
++ cmp.d 0x01, $r1 ; CAS latency = 2?
++ beq _bw_check
++ nop
++ or.d 0x20, $r2 ; CAS latency = 3
++_bw_check:
++ move.d 0x09603636, $r1
++ and.d 0x800000, $r1 ; DRAM width is bit 23
++ bne _set_timing
++ nop
++ lsrq 1, $r2 ; 16 bits. Shift down value.
++
++ ; Set timing parameters. Starts master clock
++_set_timing:
++ move.d 0x80008002, $r1
++ and.d 0x8000f9ff, $r1 ; Make sure mrs data and command is 0
++ or.d 0x80000000, $r1 ; Make sure sdram enable bit is set
++ move.d $r1, $r5
++ or.d 0x0000c000, $r1 ; ref = disable
++ lslq 16, $r2 ; mrs data starts at bit 16
++ or.d $r2, $r1
++ move.d $r1, [R_SDRAM_TIMING]
++
++ ; Wait 200us
++ move.d 10000, $r2
++1: bne 1b
++ subq 1, $r2
++
++ ; Issue initialization command sequence
++ move.d _sdram_commands_start, $r2
++ and.d 0x000fffff, $r2 ; Make sure commands are read from flash
++ move.d _sdram_commands_end, $r3
++ and.d 0x000fffff, $r3
++1: clear.d $r4
++ move.b [$r2+], $r4
++ lslq 9, $r4 ; Command starts at bit 9
++ or.d $r1, $r4
++ move.d $r4, [R_SDRAM_TIMING]
++ nop ; Wait five nop cycles between each command
++ nop
++ nop
++ nop
++ nop
++ cmp.d $r2, $r3
++ bne 1b
++ nop
++ move.d $r5, [R_SDRAM_TIMING]
++ subq 1, $r6
++ bne _sdram_init
++ nop
++ ba _sdram_commands_end
++ nop
++
++_sdram_commands_start:
++ .byte 3 ; Precharge
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 1 ; mrs
++ .byte 0 ; nop
++_sdram_commands_end:
++#endif
++#endif
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init_816.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init_816.S
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init_816.S 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init_816.S 2007-05-28 20:04:05.000000000 +0200
+@@ -0,0 +1,207 @@
++/* $Id: dram_init.S,v 1.5 2006/10/13 12:43:11 starvik Exp $
++ *
++ * DRAM/SDRAM initialization - alter with care
++ * This file is intended to be included from other assembler files
++ *
++ * Note: This file may not modify r9 because r9 is used to carry
++ * information from the decompresser to the kernel
++ *
++ * Copyright (C) 2000, 2001 Axis Communications AB
++ *
++ * Authors: Mikael Starvik (starvik@axis.com)
++ *
++ * $Log: dram_init.S,v $
++ * Revision 1.5 2006/10/13 12:43:11 starvik
++ * Merge of 2.6.18
++ *
++ * Revision 1.4 2003/09/22 09:21:59 starvik
++ * Decompresser is linked to 0x407xxxxx and sdram commands are at 0x000xxxxx
++ * so we need to mask off 12 bits.
++ *
++ * Revision 1.3 2003/03/31 09:38:37 starvik
++ * Corrected calculation of end of sdram init commands
++ *
++ * Revision 1.2 2002/11/19 13:33:29 starvik
++ * Changes from Linux 2.4
++ *
++ * Revision 1.13 2002/10/30 07:42:28 starvik
++ * Always read SDRAM command sequence from flash
++ *
++ * Revision 1.12 2002/08/09 11:37:37 orjanf
++ * Added double initialization work-around for Samsung SDRAMs.
++ *
++ * Revision 1.11 2002/06/04 11:43:21 starvik
++ * Check if mrs_data is specified in kernelconfig (necessary for MCM)
++ *
++ * Revision 1.10 2001/10/04 12:00:21 martinnn
++ * Added missing underscores.
++ *
++ * Revision 1.9 2001/10/01 14:47:35 bjornw
++ * Added register prefixes and removed underscores
++ *
++ * Revision 1.8 2001/05/15 07:12:45 hp
++ * Copy warning from head.S about r8 and r9
++ *
++ * Revision 1.7 2001/04/18 12:05:39 bjornw
++ * Fixed comments, and explicitely include config.h to be sure its there
++ *
++ * Revision 1.6 2001/04/10 06:20:16 starvik
++ * Delay should be 200us, not 200ns
++ *
++ * Revision 1.5 2001/04/09 06:01:13 starvik
++ * Added support for 100 MHz SDRAMs
++ *
++ * Revision 1.4 2001/03/26 14:24:01 bjornw
++ * Namechange of some config options
++ *
++ * Revision 1.3 2001/03/23 08:29:41 starvik
++ * Corrected calculation of mrs_data
++ *
++ * Revision 1.2 2001/02/08 15:20:00 starvik
++ * Corrected SDRAM initialization
++ * Should now be included as inline
++ *
++ * Revision 1.1 2001/01/29 13:08:02 starvik
++ * Initial version
++ * This file should be included from all assembler files that needs to
++ * initialize DRAM/SDRAM.
++ *
++ */
++
++/* Just to be certain the config file is included, we include it here
++ * explicitely instead of depending on it being included in the file that
++ * uses this code.
++ */
++
++
++ ;; WARNING! The registers r8 and r9 are used as parameters carrying
++ ;; information from the decompressor (if the kernel was compressed).
++ ;; They should not be used in the code below.
++
++#ifndef CONFIG_SVINTO_SIM
++ move.d CONFIG_ETRAX_DEF_R_WAITSTATES, $r0
++ move.d $r0, [R_WAITSTATES]
++
++ move.d CONFIG_ETRAX_DEF_R_BUS_CONFIG, $r0
++ move.d $r0, [R_BUS_CONFIG]
++
++#ifndef CONFIG_ETRAX_SDRAM
++ move.d CONFIG_ETRAX_DEF_R_DRAM_CONFIG, $r0
++ move.d $r0, [R_DRAM_CONFIG]
++
++ move.d CONFIG_ETRAX_DEF_R_DRAM_TIMING, $r0
++ move.d $r0, [R_DRAM_TIMING]
++#else
++ ;; Samsung SDRAMs seem to require to be initialized twice to work properly.
++ moveq 2, $r6
++_sdram_init:
++
++ ; Refer to ETRAX 100LX Designers Reference for a description of SDRAM initialization
++
++ ; Bank configuration
++ move.d 0x09603636, $r0
++ move.d $r0, [R_SDRAM_CONFIG]
++
++ ; Calculate value of mrs_data
++ ; CAS latency = 2 && bus_width = 32 => 0x40
++ ; CAS latency = 3 && bus_width = 32 => 0x60
++ ; CAS latency = 2 && bus_width = 16 => 0x20
++ ; CAS latency = 3 && bus_width = 16 => 0x30
++
++ ; Check if value is already supplied in kernel config
++ move.d 0x80008002, $r2
++ and.d 0x00ff0000, $r2
++ bne _set_timing
++ lsrq 16, $r2
++
++ move.d 0x40, $r2 ; Assume 32 bits and CAS latency = 2
++ move.d 0x80008002, $r1
++ move.d $r1, $r3
++ and.d 0x03, $r1 ; Get CAS latency
++ and.d 0x1000, $r3 ; 50 or 100 MHz?
++ beq _speed_50
++ nop
++_speed_100:
++ cmp.d 0x00, $r1 ; CAS latency = 2?
++ beq _bw_check
++ nop
++ or.d 0x20, $r2 ; CAS latency = 3
++ ba _bw_check
++ nop
++_speed_50:
++ cmp.d 0x01, $r1 ; CAS latency = 2?
++ beq _bw_check
++ nop
++ or.d 0x20, $r2 ; CAS latency = 3
++_bw_check:
++ move.d 0x09603636, $r1
++ and.d 0x800000, $r1 ; DRAM width is bit 23
++ bne _set_timing
++ nop
++ lsrq 1, $r2 ; 16 bits. Shift down value.
++
++ ; Set timing parameters. Starts master clock
++_set_timing:
++ move.d 0x80008002, $r1
++ and.d 0x8000f9ff, $r1 ; Make sure mrs data and command is 0
++ or.d 0x80000000, $r1 ; Make sure sdram enable bit is set
++ move.d $r1, $r5
++ or.d 0x0000c000, $r1 ; ref = disable
++ lslq 16, $r2 ; mrs data starts at bit 16
++ or.d $r2, $r1
++ move.d $r1, [R_SDRAM_TIMING]
++
++ ; Wait 200us
++ move.d 10000, $r2
++1: bne 1b
++ subq 1, $r2
++
++ ; Issue initialization command sequence
++ move.d _sdram_commands_start, $r2
++ and.d 0x000fffff, $r2 ; Make sure commands are read from flash
++ move.d _sdram_commands_end, $r3
++ and.d 0x000fffff, $r3
++1: clear.d $r4
++ move.b [$r2+], $r4
++ lslq 9, $r4 ; Command starts at bit 9
++ or.d $r1, $r4
++ move.d $r4, [R_SDRAM_TIMING]
++ nop ; Wait five nop cycles between each command
++ nop
++ nop
++ nop
++ nop
++ cmp.d $r2, $r3
++ bne 1b
++ nop
++ move.d $r5, [R_SDRAM_TIMING]
++ subq 1, $r6
++ bne _sdram_init
++ nop
++ ba _sdram_commands_end
++ nop
++
++_sdram_commands_start:
++ .byte 3 ; Precharge
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 1 ; mrs
++ .byte 0 ; nop
++_sdram_commands_end:
++#endif
++#endif
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init_832.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init_832.S
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init_832.S 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init_832.S 2007-05-28 20:04:57.000000000 +0200
+@@ -0,0 +1,207 @@
++/* $Id: dram_init.S,v 1.5 2006/10/13 12:43:11 starvik Exp $
++ *
++ * DRAM/SDRAM initialization - alter with care
++ * This file is intended to be included from other assembler files
++ *
++ * Note: This file may not modify r9 because r9 is used to carry
++ * information from the decompresser to the kernel
++ *
++ * Copyright (C) 2000, 2001 Axis Communications AB
++ *
++ * Authors: Mikael Starvik (starvik@axis.com)
++ *
++ * $Log: dram_init.S,v $
++ * Revision 1.5 2006/10/13 12:43:11 starvik
++ * Merge of 2.6.18
++ *
++ * Revision 1.4 2003/09/22 09:21:59 starvik
++ * Decompresser is linked to 0x407xxxxx and sdram commands are at 0x000xxxxx
++ * so we need to mask off 12 bits.
++ *
++ * Revision 1.3 2003/03/31 09:38:37 starvik
++ * Corrected calculation of end of sdram init commands
++ *
++ * Revision 1.2 2002/11/19 13:33:29 starvik
++ * Changes from Linux 2.4
++ *
++ * Revision 1.13 2002/10/30 07:42:28 starvik
++ * Always read SDRAM command sequence from flash
++ *
++ * Revision 1.12 2002/08/09 11:37:37 orjanf
++ * Added double initialization work-around for Samsung SDRAMs.
++ *
++ * Revision 1.11 2002/06/04 11:43:21 starvik
++ * Check if mrs_data is specified in kernelconfig (necessary for MCM)
++ *
++ * Revision 1.10 2001/10/04 12:00:21 martinnn
++ * Added missing underscores.
++ *
++ * Revision 1.9 2001/10/01 14:47:35 bjornw
++ * Added register prefixes and removed underscores
++ *
++ * Revision 1.8 2001/05/15 07:12:45 hp
++ * Copy warning from head.S about r8 and r9
++ *
++ * Revision 1.7 2001/04/18 12:05:39 bjornw
++ * Fixed comments, and explicitely include config.h to be sure its there
++ *
++ * Revision 1.6 2001/04/10 06:20:16 starvik
++ * Delay should be 200us, not 200ns
++ *
++ * Revision 1.5 2001/04/09 06:01:13 starvik
++ * Added support for 100 MHz SDRAMs
++ *
++ * Revision 1.4 2001/03/26 14:24:01 bjornw
++ * Namechange of some config options
++ *
++ * Revision 1.3 2001/03/23 08:29:41 starvik
++ * Corrected calculation of mrs_data
++ *
++ * Revision 1.2 2001/02/08 15:20:00 starvik
++ * Corrected SDRAM initialization
++ * Should now be included as inline
++ *
++ * Revision 1.1 2001/01/29 13:08:02 starvik
++ * Initial version
++ * This file should be included from all assembler files that needs to
++ * initialize DRAM/SDRAM.
++ *
++ */
++
++/* Just to be certain the config file is included, we include it here
++ * explicitely instead of depending on it being included in the file that
++ * uses this code.
++ */
++
++
++ ;; WARNING! The registers r8 and r9 are used as parameters carrying
++ ;; information from the decompressor (if the kernel was compressed).
++ ;; They should not be used in the code below.
++
++#ifndef CONFIG_SVINTO_SIM
++ move.d CONFIG_ETRAX_DEF_R_WAITSTATES, $r0
++ move.d $r0, [R_WAITSTATES]
++
++ move.d CONFIG_ETRAX_DEF_R_BUS_CONFIG, $r0
++ move.d $r0, [R_BUS_CONFIG]
++
++#ifndef CONFIG_ETRAX_SDRAM
++ move.d CONFIG_ETRAX_DEF_R_DRAM_CONFIG, $r0
++ move.d $r0, [R_DRAM_CONFIG]
++
++ move.d CONFIG_ETRAX_DEF_R_DRAM_TIMING, $r0
++ move.d $r0, [R_DRAM_TIMING]
++#else
++ ;; Samsung SDRAMs seem to require to be initialized twice to work properly.
++ moveq 2, $r6
++_sdram_init:
++
++ ; Refer to ETRAX 100LX Designers Reference for a description of SDRAM initialization
++
++ ; Bank configuration
++ move.d 0x09603737, $r0
++ move.d $r0, [R_SDRAM_CONFIG]
++
++ ; Calculate value of mrs_data
++ ; CAS latency = 2 && bus_width = 32 => 0x40
++ ; CAS latency = 3 && bus_width = 32 => 0x60
++ ; CAS latency = 2 && bus_width = 16 => 0x20
++ ; CAS latency = 3 && bus_width = 16 => 0x30
++
++ ; Check if value is already supplied in kernel config
++ move.d 0x80008002, $r2
++ and.d 0x00ff0000, $r2
++ bne _set_timing
++ lsrq 16, $r2
++
++ move.d 0x40, $r2 ; Assume 32 bits and CAS latency = 2
++ move.d 0x80008002, $r1
++ move.d $r1, $r3
++ and.d 0x03, $r1 ; Get CAS latency
++ and.d 0x1000, $r3 ; 50 or 100 MHz?
++ beq _speed_50
++ nop
++_speed_100:
++ cmp.d 0x00, $r1 ; CAS latency = 2?
++ beq _bw_check
++ nop
++ or.d 0x20, $r2 ; CAS latency = 3
++ ba _bw_check
++ nop
++_speed_50:
++ cmp.d 0x01, $r1 ; CAS latency = 2?
++ beq _bw_check
++ nop
++ or.d 0x20, $r2 ; CAS latency = 3
++_bw_check:
++ move.d 0x09603737, $r1
++ and.d 0x800000, $r1 ; DRAM width is bit 23
++ bne _set_timing
++ nop
++ lsrq 1, $r2 ; 16 bits. Shift down value.
++
++ ; Set timing parameters. Starts master clock
++_set_timing:
++ move.d 0x80008002, $r1
++ and.d 0x8000f9ff, $r1 ; Make sure mrs data and command is 0
++ or.d 0x80000000, $r1 ; Make sure sdram enable bit is set
++ move.d $r1, $r5
++ or.d 0x0000c000, $r1 ; ref = disable
++ lslq 16, $r2 ; mrs data starts at bit 16
++ or.d $r2, $r1
++ move.d $r1, [R_SDRAM_TIMING]
++
++ ; Wait 200us
++ move.d 10000, $r2
++1: bne 1b
++ subq 1, $r2
++
++ ; Issue initialization command sequence
++ move.d _sdram_commands_start, $r2
++ and.d 0x000fffff, $r2 ; Make sure commands are read from flash
++ move.d _sdram_commands_end, $r3
++ and.d 0x000fffff, $r3
++1: clear.d $r4
++ move.b [$r2+], $r4
++ lslq 9, $r4 ; Command starts at bit 9
++ or.d $r1, $r4
++ move.d $r4, [R_SDRAM_TIMING]
++ nop ; Wait five nop cycles between each command
++ nop
++ nop
++ nop
++ nop
++ cmp.d $r2, $r3
++ bne 1b
++ nop
++ move.d $r5, [R_SDRAM_TIMING]
++ subq 1, $r6
++ bne _sdram_init
++ nop
++ ba _sdram_commands_end
++ nop
++
++_sdram_commands_start:
++ .byte 3 ; Precharge
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 1 ; mrs
++ .byte 0 ; nop
++_sdram_commands_end:
++#endif
++#endif
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init_MCM.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init_MCM.S
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init_MCM.S 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init_MCM.S 2007-05-28 20:03:13.000000000 +0200
+@@ -0,0 +1,207 @@
++/* $Id: dram_init.S,v 1.5 2006/10/13 12:43:11 starvik Exp $
++ *
++ * DRAM/SDRAM initialization - alter with care
++ * This file is intended to be included from other assembler files
++ *
++ * Note: This file may not modify r9 because r9 is used to carry
++ * information from the decompresser to the kernel
++ *
++ * Copyright (C) 2000, 2001 Axis Communications AB
++ *
++ * Authors: Mikael Starvik (starvik@axis.com)
++ *
++ * $Log: dram_init.S,v $
++ * Revision 1.5 2006/10/13 12:43:11 starvik
++ * Merge of 2.6.18
++ *
++ * Revision 1.4 2003/09/22 09:21:59 starvik
++ * Decompresser is linked to 0x407xxxxx and sdram commands are at 0x000xxxxx
++ * so we need to mask off 12 bits.
++ *
++ * Revision 1.3 2003/03/31 09:38:37 starvik
++ * Corrected calculation of end of sdram init commands
++ *
++ * Revision 1.2 2002/11/19 13:33:29 starvik
++ * Changes from Linux 2.4
++ *
++ * Revision 1.13 2002/10/30 07:42:28 starvik
++ * Always read SDRAM command sequence from flash
++ *
++ * Revision 1.12 2002/08/09 11:37:37 orjanf
++ * Added double initialization work-around for Samsung SDRAMs.
++ *
++ * Revision 1.11 2002/06/04 11:43:21 starvik
++ * Check if mrs_data is specified in kernelconfig (necessary for MCM)
++ *
++ * Revision 1.10 2001/10/04 12:00:21 martinnn
++ * Added missing underscores.
++ *
++ * Revision 1.9 2001/10/01 14:47:35 bjornw
++ * Added register prefixes and removed underscores
++ *
++ * Revision 1.8 2001/05/15 07:12:45 hp
++ * Copy warning from head.S about r8 and r9
++ *
++ * Revision 1.7 2001/04/18 12:05:39 bjornw
++ * Fixed comments, and explicitely include config.h to be sure its there
++ *
++ * Revision 1.6 2001/04/10 06:20:16 starvik
++ * Delay should be 200us, not 200ns
++ *
++ * Revision 1.5 2001/04/09 06:01:13 starvik
++ * Added support for 100 MHz SDRAMs
++ *
++ * Revision 1.4 2001/03/26 14:24:01 bjornw
++ * Namechange of some config options
++ *
++ * Revision 1.3 2001/03/23 08:29:41 starvik
++ * Corrected calculation of mrs_data
++ *
++ * Revision 1.2 2001/02/08 15:20:00 starvik
++ * Corrected SDRAM initialization
++ * Should now be included as inline
++ *
++ * Revision 1.1 2001/01/29 13:08:02 starvik
++ * Initial version
++ * This file should be included from all assembler files that needs to
++ * initialize DRAM/SDRAM.
++ *
++ */
++
++/* Just to be certain the config file is included, we include it here
++ * explicitely instead of depending on it being included in the file that
++ * uses this code.
++ */
++
++
++ ;; WARNING! The registers r8 and r9 are used as parameters carrying
++ ;; information from the decompressor (if the kernel was compressed).
++ ;; They should not be used in the code below.
++
++#ifndef CONFIG_SVINTO_SIM
++ move.d CONFIG_ETRAX_DEF_R_WAITSTATES, $r0
++ move.d $r0, [R_WAITSTATES]
++
++ move.d CONFIG_ETRAX_DEF_R_BUS_CONFIG, $r0
++ move.d $r0, [R_BUS_CONFIG]
++
++#ifndef CONFIG_ETRAX_SDRAM
++ move.d CONFIG_ETRAX_DEF_R_DRAM_CONFIG, $r0
++ move.d $r0, [R_DRAM_CONFIG]
++
++ move.d CONFIG_ETRAX_DEF_R_DRAM_TIMING, $r0
++ move.d $r0, [R_DRAM_TIMING]
++#else
++ ;; Samsung SDRAMs seem to require to be initialized twice to work properly.
++ moveq 2, $r6
++_sdram_init:
++
++ ; Refer to ETRAX 100LX Designers Reference for a description of SDRAM initialization
++
++ ; Bank configuration
++ move.d 0x09603636, $r0
++ move.d $r0, [R_SDRAM_CONFIG]
++
++ ; Calculate value of mrs_data
++ ; CAS latency = 2 && bus_width = 32 => 0x40
++ ; CAS latency = 3 && bus_width = 32 => 0x60
++ ; CAS latency = 2 && bus_width = 16 => 0x20
++ ; CAS latency = 3 && bus_width = 16 => 0x30
++
++ ; Check if value is already supplied in kernel config
++ move.d 0x80608002, $r2
++ and.d 0x00ff0000, $r2
++ bne _set_timing
++ lsrq 16, $r2
++
++ move.d 0x40, $r2 ; Assume 32 bits and CAS latency = 2
++ move.d 0x80608002, $r1
++ move.d $r1, $r3
++ and.d 0x03, $r1 ; Get CAS latency
++ and.d 0x1000, $r3 ; 50 or 100 MHz?
++ beq _speed_50
++ nop
++_speed_100:
++ cmp.d 0x00, $r1 ; CAS latency = 2?
++ beq _bw_check
++ nop
++ or.d 0x20, $r2 ; CAS latency = 3
++ ba _bw_check
++ nop
++_speed_50:
++ cmp.d 0x01, $r1 ; CAS latency = 2?
++ beq _bw_check
++ nop
++ or.d 0x20, $r2 ; CAS latency = 3
++_bw_check:
++ move.d 0x09603636, $r1
++ and.d 0x800000, $r1 ; DRAM width is bit 23
++ bne _set_timing
++ nop
++ lsrq 1, $r2 ; 16 bits. Shift down value.
++
++ ; Set timing parameters. Starts master clock
++_set_timing:
++ move.d 0x80608002, $r1
++ and.d 0x8000f9ff, $r1 ; Make sure mrs data and command is 0
++ or.d 0x80000000, $r1 ; Make sure sdram enable bit is set
++ move.d $r1, $r5
++ or.d 0x0000c000, $r1 ; ref = disable
++ lslq 16, $r2 ; mrs data starts at bit 16
++ or.d $r2, $r1
++ move.d $r1, [R_SDRAM_TIMING]
++
++ ; Wait 200us
++ move.d 10000, $r2
++1: bne 1b
++ subq 1, $r2
++
++ ; Issue initialization command sequence
++ move.d _sdram_commands_start, $r2
++ and.d 0x000fffff, $r2 ; Make sure commands are read from flash
++ move.d _sdram_commands_end, $r3
++ and.d 0x000fffff, $r3
++1: clear.d $r4
++ move.b [$r2+], $r4
++ lslq 9, $r4 ; Command starts at bit 9
++ or.d $r1, $r4
++ move.d $r4, [R_SDRAM_TIMING]
++ nop ; Wait five nop cycles between each command
++ nop
++ nop
++ nop
++ nop
++ cmp.d $r2, $r3
++ bne 1b
++ nop
++ move.d $r5, [R_SDRAM_TIMING]
++ subq 1, $r6
++ bne _sdram_init
++ nop
++ ba _sdram_commands_end
++ nop
++
++_sdram_commands_start:
++ .byte 3 ; Precharge
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 2 ; refresh
++ .byte 0 ; nop
++ .byte 1 ; mrs
++ .byte 0 ; nop
++_sdram_commands_end:
++#endif
++#endif
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/head_416.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/head_416.S
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/head_416.S 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/head_416.S 2007-05-28 17:16:28.000000000 +0200
+@@ -0,0 +1,126 @@
++/*
++ * arch/cris/boot/compressed/head.S
++ *
++ * Copyright (C) 1999, 2001 Axis Communications AB
++ *
++ * Code that sets up the DRAM registers, calls the
++ * decompressor to unpack the piggybacked kernel, and jumps.
++ *
++ */
++
++#define ASSEMBLER_MACROS_ONLY
++#include <asm/arch/sv_addr_ag.h>
++
++#define RAM_INIT_MAGIC 0x56902387
++#define COMMAND_LINE_MAGIC 0x87109563
++
++ ;; Exported symbols
++
++ .globl _input_data
++
++
++ .text
++
++ nop
++ di
++
++;; We need to initialze DRAM registers before we start using the DRAM
++
++ cmp.d RAM_INIT_MAGIC, r8 ; Already initialized?
++ beq dram_init_finished
++ nop
++
++#include "dram_init_416.S"
++
++dram_init_finished:
++
++ ;; Initiate the PA and PB ports
++
++ move.b CONFIG_ETRAX_DEF_R_PORT_PA_DATA, r0
++ move.b r0, [R_PORT_PA_DATA]
++
++ move.b CONFIG_ETRAX_DEF_R_PORT_PA_DIR, r0
++ move.b r0, [R_PORT_PA_DIR]
++
++ move.b CONFIG_ETRAX_DEF_R_PORT_PB_DATA, r0
++ move.b r0, [R_PORT_PB_DATA]
++
++ move.b CONFIG_ETRAX_DEF_R_PORT_PB_DIR, r0
++ move.b r0, [R_PORT_PB_DIR]
++
++ ;; Setup the stack to a suitably high address.
++ ;; We assume 8 MB is the minimum DRAM in an eLinux
++ ;; product and put the sp at the top for now.
++
++ move.d 0x40800000, sp
++
++ ;; Figure out where the compressed piggyback image is
++ ;; in the flash (since we wont try to copy it to DRAM
++ ;; before unpacking). It is at _edata, but in flash.
++ ;; Use (_edata - basse) as offset to the current PC.
++
++basse: move.d pc, r5
++ and.d 0x7fffffff, r5 ; strip any non-cache bit
++ subq 2, r5 ; compensate for the move.d pc instr
++ move.d r5, r0 ; save for later - flash address of 'basse'
++ add.d _edata, r5
++ sub.d basse, r5 ; r5 = flash address of '_edata'
++
++ ;; Copy text+data to DRAM
++
++ move.d basse, r1 ; destination
++ move.d _edata, r2 ; end destination
++1: move.w [r0+], r3
++ move.w r3, [r1+]
++ cmp.d r2, r1
++ bcs 1b
++ nop
++
++ move.d r5, [_input_data] ; for the decompressor
++
++
++ ;; Clear the decompressors BSS (between _edata and _end)
++
++ moveq 0, r0
++ move.d _edata, r1
++ move.d _end, r2
++1: move.w r0, [r1+]
++ cmp.d r2, r1
++ bcs 1b
++ nop
++
++ ;; Save command line magic and address.
++ move.d _cmd_line_magic, $r12
++ move.d $r10, [$r12]
++ move.d _cmd_line_addr, $r12
++ move.d $r11, [$r12]
++
++ ;; Do the decompression and save compressed size in _inptr
++
++ jsr _decompress_kernel
++
++ ;; Put start address of root partition in r9 so the kernel can use it
++ ;; when mounting from flash
++
++ move.d [_input_data], r9 ; flash address of compressed kernel
++ add.d [_inptr], r9 ; size of compressed kernel
++
++ ;; Restore command line magic and address.
++ move.d _cmd_line_magic, $r10
++ move.d [$r10], $r10
++ move.d _cmd_line_addr, $r11
++ move.d [$r11], $r11
++
++ ;; Enter the decompressed kernel
++ move.d RAM_INIT_MAGIC, r8 ; Tell kernel that DRAM is initialized
++ jump 0x40004000 ; kernel is linked to this address
++
++ .data
++
++_input_data:
++ .dword 0 ; used by the decompressor
++_cmd_line_magic:
++ .dword 0
++_cmd_line_addr:
++ .dword 0
++#include "hw_settings_416.S"
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/head_816.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/head_816.S
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/head_816.S 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/head_816.S 2007-05-28 17:16:58.000000000 +0200
+@@ -0,0 +1,126 @@
++/*
++ * arch/cris/boot/compressed/head.S
++ *
++ * Copyright (C) 1999, 2001 Axis Communications AB
++ *
++ * Code that sets up the DRAM registers, calls the
++ * decompressor to unpack the piggybacked kernel, and jumps.
++ *
++ */
++
++#define ASSEMBLER_MACROS_ONLY
++#include <asm/arch/sv_addr_ag.h>
++
++#define RAM_INIT_MAGIC 0x56902387
++#define COMMAND_LINE_MAGIC 0x87109563
++
++ ;; Exported symbols
++
++ .globl _input_data
++
++
++ .text
++
++ nop
++ di
++
++;; We need to initialze DRAM registers before we start using the DRAM
++
++ cmp.d RAM_INIT_MAGIC, r8 ; Already initialized?
++ beq dram_init_finished
++ nop
++
++#include "dram_init_816.S"
++
++dram_init_finished:
++
++ ;; Initiate the PA and PB ports
++
++ move.b CONFIG_ETRAX_DEF_R_PORT_PA_DATA, r0
++ move.b r0, [R_PORT_PA_DATA]
++
++ move.b CONFIG_ETRAX_DEF_R_PORT_PA_DIR, r0
++ move.b r0, [R_PORT_PA_DIR]
++
++ move.b CONFIG_ETRAX_DEF_R_PORT_PB_DATA, r0
++ move.b r0, [R_PORT_PB_DATA]
++
++ move.b CONFIG_ETRAX_DEF_R_PORT_PB_DIR, r0
++ move.b r0, [R_PORT_PB_DIR]
++
++ ;; Setup the stack to a suitably high address.
++ ;; We assume 8 MB is the minimum DRAM in an eLinux
++ ;; product and put the sp at the top for now.
++
++ move.d 0x40800000, sp
++
++ ;; Figure out where the compressed piggyback image is
++ ;; in the flash (since we wont try to copy it to DRAM
++ ;; before unpacking). It is at _edata, but in flash.
++ ;; Use (_edata - basse) as offset to the current PC.
++
++basse: move.d pc, r5
++ and.d 0x7fffffff, r5 ; strip any non-cache bit
++ subq 2, r5 ; compensate for the move.d pc instr
++ move.d r5, r0 ; save for later - flash address of 'basse'
++ add.d _edata, r5
++ sub.d basse, r5 ; r5 = flash address of '_edata'
++
++ ;; Copy text+data to DRAM
++
++ move.d basse, r1 ; destination
++ move.d _edata, r2 ; end destination
++1: move.w [r0+], r3
++ move.w r3, [r1+]
++ cmp.d r2, r1
++ bcs 1b
++ nop
++
++ move.d r5, [_input_data] ; for the decompressor
++
++
++ ;; Clear the decompressors BSS (between _edata and _end)
++
++ moveq 0, r0
++ move.d _edata, r1
++ move.d _end, r2
++1: move.w r0, [r1+]
++ cmp.d r2, r1
++ bcs 1b
++ nop
++
++ ;; Save command line magic and address.
++ move.d _cmd_line_magic, $r12
++ move.d $r10, [$r12]
++ move.d _cmd_line_addr, $r12
++ move.d $r11, [$r12]
++
++ ;; Do the decompression and save compressed size in _inptr
++
++ jsr _decompress_kernel
++
++ ;; Put start address of root partition in r9 so the kernel can use it
++ ;; when mounting from flash
++
++ move.d [_input_data], r9 ; flash address of compressed kernel
++ add.d [_inptr], r9 ; size of compressed kernel
++
++ ;; Restore command line magic and address.
++ move.d _cmd_line_magic, $r10
++ move.d [$r10], $r10
++ move.d _cmd_line_addr, $r11
++ move.d [$r11], $r11
++
++ ;; Enter the decompressed kernel
++ move.d RAM_INIT_MAGIC, r8 ; Tell kernel that DRAM is initialized
++ jump 0x40004000 ; kernel is linked to this address
++
++ .data
++
++_input_data:
++ .dword 0 ; used by the decompressor
++_cmd_line_magic:
++ .dword 0
++_cmd_line_addr:
++ .dword 0
++#include "hw_settings_816.S"
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/head_832.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/head_832.S
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/head_832.S 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/head_832.S 2007-05-28 17:17:12.000000000 +0200
+@@ -0,0 +1,126 @@
++/*
++ * arch/cris/boot/compressed/head.S
++ *
++ * Copyright (C) 1999, 2001 Axis Communications AB
++ *
++ * Code that sets up the DRAM registers, calls the
++ * decompressor to unpack the piggybacked kernel, and jumps.
++ *
++ */
++
++#define ASSEMBLER_MACROS_ONLY
++#include <asm/arch/sv_addr_ag.h>
++
++#define RAM_INIT_MAGIC 0x56902387
++#define COMMAND_LINE_MAGIC 0x87109563
++
++ ;; Exported symbols
++
++ .globl _input_data
++
++
++ .text
++
++ nop
++ di
++
++;; We need to initialze DRAM registers before we start using the DRAM
++
++ cmp.d RAM_INIT_MAGIC, r8 ; Already initialized?
++ beq dram_init_finished
++ nop
++
++#include "dram_init_832.S"
++
++dram_init_finished:
++
++ ;; Initiate the PA and PB ports
++
++ move.b CONFIG_ETRAX_DEF_R_PORT_PA_DATA, r0
++ move.b r0, [R_PORT_PA_DATA]
++
++ move.b CONFIG_ETRAX_DEF_R_PORT_PA_DIR, r0
++ move.b r0, [R_PORT_PA_DIR]
++
++ move.b CONFIG_ETRAX_DEF_R_PORT_PB_DATA, r0
++ move.b r0, [R_PORT_PB_DATA]
++
++ move.b CONFIG_ETRAX_DEF_R_PORT_PB_DIR, r0
++ move.b r0, [R_PORT_PB_DIR]
++
++ ;; Setup the stack to a suitably high address.
++ ;; We assume 8 MB is the minimum DRAM in an eLinux
++ ;; product and put the sp at the top for now.
++
++ move.d 0x40800000, sp
++
++ ;; Figure out where the compressed piggyback image is
++ ;; in the flash (since we wont try to copy it to DRAM
++ ;; before unpacking). It is at _edata, but in flash.
++ ;; Use (_edata - basse) as offset to the current PC.
++
++basse: move.d pc, r5
++ and.d 0x7fffffff, r5 ; strip any non-cache bit
++ subq 2, r5 ; compensate for the move.d pc instr
++ move.d r5, r0 ; save for later - flash address of 'basse'
++ add.d _edata, r5
++ sub.d basse, r5 ; r5 = flash address of '_edata'
++
++ ;; Copy text+data to DRAM
++
++ move.d basse, r1 ; destination
++ move.d _edata, r2 ; end destination
++1: move.w [r0+], r3
++ move.w r3, [r1+]
++ cmp.d r2, r1
++ bcs 1b
++ nop
++
++ move.d r5, [_input_data] ; for the decompressor
++
++
++ ;; Clear the decompressors BSS (between _edata and _end)
++
++ moveq 0, r0
++ move.d _edata, r1
++ move.d _end, r2
++1: move.w r0, [r1+]
++ cmp.d r2, r1
++ bcs 1b
++ nop
++
++ ;; Save command line magic and address.
++ move.d _cmd_line_magic, $r12
++ move.d $r10, [$r12]
++ move.d _cmd_line_addr, $r12
++ move.d $r11, [$r12]
++
++ ;; Do the decompression and save compressed size in _inptr
++
++ jsr _decompress_kernel
++
++ ;; Put start address of root partition in r9 so the kernel can use it
++ ;; when mounting from flash
++
++ move.d [_input_data], r9 ; flash address of compressed kernel
++ add.d [_inptr], r9 ; size of compressed kernel
++
++ ;; Restore command line magic and address.
++ move.d _cmd_line_magic, $r10
++ move.d [$r10], $r10
++ move.d _cmd_line_addr, $r11
++ move.d [$r11], $r11
++
++ ;; Enter the decompressed kernel
++ move.d RAM_INIT_MAGIC, r8 ; Tell kernel that DRAM is initialized
++ jump 0x40004000 ; kernel is linked to this address
++
++ .data
++
++_input_data:
++ .dword 0 ; used by the decompressor
++_cmd_line_magic:
++ .dword 0
++_cmd_line_addr:
++ .dword 0
++#include "hw_settings_832.S"
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/head_MCM.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/head_MCM.S
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/head_MCM.S 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/head_MCM.S 2007-05-28 17:17:51.000000000 +0200
+@@ -0,0 +1,126 @@
++/*
++ * arch/cris/boot/compressed/head.S
++ *
++ * Copyright (C) 1999, 2001 Axis Communications AB
++ *
++ * Code that sets up the DRAM registers, calls the
++ * decompressor to unpack the piggybacked kernel, and jumps.
++ *
++ */
++
++#define ASSEMBLER_MACROS_ONLY
++#include <asm/arch/sv_addr_ag.h>
++
++#define RAM_INIT_MAGIC 0x56902387
++#define COMMAND_LINE_MAGIC 0x87109563
++
++ ;; Exported symbols
++
++ .globl _input_data
++
++
++ .text
++
++ nop
++ di
++
++;; We need to initialze DRAM registers before we start using the DRAM
++
++ cmp.d RAM_INIT_MAGIC, r8 ; Already initialized?
++ beq dram_init_finished
++ nop
++
++#include "dram_init_MCM.S"
++
++dram_init_finished:
++
++ ;; Initiate the PA and PB ports
++
++ move.b CONFIG_ETRAX_DEF_R_PORT_PA_DATA, r0
++ move.b r0, [R_PORT_PA_DATA]
++
++ move.b CONFIG_ETRAX_DEF_R_PORT_PA_DIR, r0
++ move.b r0, [R_PORT_PA_DIR]
++
++ move.b CONFIG_ETRAX_DEF_R_PORT_PB_DATA, r0
++ move.b r0, [R_PORT_PB_DATA]
++
++ move.b CONFIG_ETRAX_DEF_R_PORT_PB_DIR, r0
++ move.b r0, [R_PORT_PB_DIR]
++
++ ;; Setup the stack to a suitably high address.
++ ;; We assume 8 MB is the minimum DRAM in an eLinux
++ ;; product and put the sp at the top for now.
++
++ move.d 0x40800000, sp
++
++ ;; Figure out where the compressed piggyback image is
++ ;; in the flash (since we wont try to copy it to DRAM
++ ;; before unpacking). It is at _edata, but in flash.
++ ;; Use (_edata - basse) as offset to the current PC.
++
++basse: move.d pc, r5
++ and.d 0x7fffffff, r5 ; strip any non-cache bit
++ subq 2, r5 ; compensate for the move.d pc instr
++ move.d r5, r0 ; save for later - flash address of 'basse'
++ add.d _edata, r5
++ sub.d basse, r5 ; r5 = flash address of '_edata'
++
++ ;; Copy text+data to DRAM
++
++ move.d basse, r1 ; destination
++ move.d _edata, r2 ; end destination
++1: move.w [r0+], r3
++ move.w r3, [r1+]
++ cmp.d r2, r1
++ bcs 1b
++ nop
++
++ move.d r5, [_input_data] ; for the decompressor
++
++
++ ;; Clear the decompressors BSS (between _edata and _end)
++
++ moveq 0, r0
++ move.d _edata, r1
++ move.d _end, r2
++1: move.w r0, [r1+]
++ cmp.d r2, r1
++ bcs 1b
++ nop
++
++ ;; Save command line magic and address.
++ move.d _cmd_line_magic, $r12
++ move.d $r10, [$r12]
++ move.d _cmd_line_addr, $r12
++ move.d $r11, [$r12]
++
++ ;; Do the decompression and save compressed size in _inptr
++
++ jsr _decompress_kernel
++
++ ;; Put start address of root partition in r9 so the kernel can use it
++ ;; when mounting from flash
++
++ move.d [_input_data], r9 ; flash address of compressed kernel
++ add.d [_inptr], r9 ; size of compressed kernel
++
++ ;; Restore command line magic and address.
++ move.d _cmd_line_magic, $r10
++ move.d [$r10], $r10
++ move.d _cmd_line_addr, $r11
++ move.d [$r11], $r11
++
++ ;; Enter the decompressed kernel
++ move.d RAM_INIT_MAGIC, r8 ; Tell kernel that DRAM is initialized
++ jump 0x40004000 ; kernel is linked to this address
++
++ .data
++
++_input_data:
++ .dword 0 ; used by the decompressor
++_cmd_line_magic:
++ .dword 0
++_cmd_line_addr:
++ .dword 0
++#include "hw_settings_MCM.S"
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings.S
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings.S 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings.S 2007-05-28 17:14:14.000000000 +0200
+@@ -0,0 +1,62 @@
++/*
++ * $Id: hw_settings.S,v 1.1 2001/12/17 13:59:27 bjornw Exp $
++ *
++ * This table is used by some tools to extract hardware parameters.
++ * The table should be included in the kernel and the decompressor.
++ * Don't forget to update the tools if you change this table.
++ *
++ * Copyright (C) 2001 Axis Communications AB
++ *
++ * Authors: Mikael Starvik (starvik@axis.com)
++ */
++
++#define PA_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PA_DIR << 8) | \
++ (CONFIG_ETRAX_DEF_R_PORT_PA_DATA))
++#define PB_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PB_CONFIG << 16) | \
++ (CONFIG_ETRAX_DEF_R_PORT_PB_DIR << 8) | \
++ (CONFIG_ETRAX_DEF_R_PORT_PB_DATA))
++
++ .ascii "HW_PARAM_MAGIC" ; Magic number
++ .dword 0xc0004000 ; Kernel start address
++
++ ; Debug port
++#ifdef CONFIG_ETRAX_DEBUG_PORT0
++ .dword 0
++#elif defined(CONFIG_ETRAX_DEBUG_PORT1)
++ .dword 1
++#elif defined(CONFIG_ETRAX_DEBUG_PORT2)
++ .dword 2
++#elif defined(CONFIG_ETRAX_DEBUG_PORT3)
++ .dword 3
++#else
++ .dword 4 ; No debug
++#endif
++
++ ; SDRAM or EDO DRAM?
++#ifdef CONFIG_ETRAX_SDRAM
++ .dword 1
++#else
++ .dword 0
++#endif
++
++ ; Register values
++ .dword R_WAITSTATES
++ .dword CONFIG_ETRAX_DEF_R_WAITSTATES
++ .dword R_BUS_CONFIG
++ .dword CONFIG_ETRAX_DEF_R_BUS_CONFIG
++#ifdef CONFIG_ETRAX_SDRAM
++ .dword R_SDRAM_CONFIG
++ .dword CONFIG_ETRAX_DEF_R_SDRAM_CONFIG
++ .dword R_SDRAM_TIMING
++ .dword CONFIG_ETRAX_DEF_R_SDRAM_TIMING
++#else
++ .dword R_DRAM_CONFIG
++ .dword CONFIG_ETRAX_DEF_R_DRAM_CONFIG
++ .dword R_DRAM_TIMING
++ .dword CONFIG_ETRAX_DEF_R_DRAM_TIMING
++#endif
++ .dword R_PORT_PA_SET
++ .dword PA_SET_VALUE
++ .dword R_PORT_PB_SET
++ .dword PB_SET_VALUE
++ .dword 0 ; No more register values
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_416.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_416.S
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_416.S 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_416.S 2007-05-28 20:12:02.000000000 +0200
+@@ -0,0 +1,62 @@
++/*
++ * $Id: hw_settings.S,v 1.1 2001/12/17 13:59:27 bjornw Exp $
++ *
++ * This table is used by some tools to extract hardware parameters.
++ * The table should be included in the kernel and the decompressor.
++ * Don't forget to update the tools if you change this table.
++ *
++ * Copyright (C) 2001 Axis Communications AB
++ *
++ * Authors: Mikael Starvik (starvik@axis.com)
++ */
++
++#define PA_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PA_DIR << 8) | \
++ (CONFIG_ETRAX_DEF_R_PORT_PA_DATA))
++#define PB_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PB_CONFIG << 16) | \
++ (CONFIG_ETRAX_DEF_R_PORT_PB_DIR << 8) | \
++ (CONFIG_ETRAX_DEF_R_PORT_PB_DATA))
++
++ .ascii "HW_PARAM_MAGIC" ; Magic number
++ .dword 0xc0004000 ; Kernel start address
++
++ ; Debug port
++#ifdef CONFIG_ETRAX_DEBUG_PORT0
++ .dword 0
++#elif defined(CONFIG_ETRAX_DEBUG_PORT1)
++ .dword 1
++#elif defined(CONFIG_ETRAX_DEBUG_PORT2)
++ .dword 2
++#elif defined(CONFIG_ETRAX_DEBUG_PORT3)
++ .dword 3
++#else
++ .dword 4 ; No debug
++#endif
++
++ ; SDRAM or EDO DRAM?
++#ifdef CONFIG_ETRAX_SDRAM
++ .dword 1
++#else
++ .dword 0
++#endif
++
++ ; Register values
++ .dword R_WAITSTATES
++ .dword CONFIG_ETRAX_DEF_R_WAITSTATES
++ .dword R_BUS_CONFIG
++ .dword CONFIG_ETRAX_DEF_R_BUS_CONFIG
++#ifdef CONFIG_ETRAX_SDRAM
++ .dword R_SDRAM_CONFIG
++ .dword 0x09603636
++ .dword R_SDRAM_TIMING
++ .dword 0x80008002
++#else
++ .dword R_DRAM_CONFIG
++ .dword CONFIG_ETRAX_DEF_R_DRAM_CONFIG
++ .dword R_DRAM_TIMING
++ .dword CONFIG_ETRAX_DEF_R_DRAM_TIMING
++#endif
++ .dword R_PORT_PA_SET
++ .dword PA_SET_VALUE
++ .dword R_PORT_PB_SET
++ .dword PB_SET_VALUE
++ .dword 0 ; No more register values
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_816.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_816.S
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_816.S 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_816.S 2007-05-28 20:12:29.000000000 +0200
+@@ -0,0 +1,62 @@
++/*
++ * $Id: hw_settings.S,v 1.1 2001/12/17 13:59:27 bjornw Exp $
++ *
++ * This table is used by some tools to extract hardware parameters.
++ * The table should be included in the kernel and the decompressor.
++ * Don't forget to update the tools if you change this table.
++ *
++ * Copyright (C) 2001 Axis Communications AB
++ *
++ * Authors: Mikael Starvik (starvik@axis.com)
++ */
++
++#define PA_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PA_DIR << 8) | \
++ (CONFIG_ETRAX_DEF_R_PORT_PA_DATA))
++#define PB_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PB_CONFIG << 16) | \
++ (CONFIG_ETRAX_DEF_R_PORT_PB_DIR << 8) | \
++ (CONFIG_ETRAX_DEF_R_PORT_PB_DATA))
++
++ .ascii "HW_PARAM_MAGIC" ; Magic number
++ .dword 0xc0004000 ; Kernel start address
++
++ ; Debug port
++#ifdef CONFIG_ETRAX_DEBUG_PORT0
++ .dword 0
++#elif defined(CONFIG_ETRAX_DEBUG_PORT1)
++ .dword 1
++#elif defined(CONFIG_ETRAX_DEBUG_PORT2)
++ .dword 2
++#elif defined(CONFIG_ETRAX_DEBUG_PORT3)
++ .dword 3
++#else
++ .dword 4 ; No debug
++#endif
++
++ ; SDRAM or EDO DRAM?
++#ifdef CONFIG_ETRAX_SDRAM
++ .dword 1
++#else
++ .dword 0
++#endif
++
++ ; Register values
++ .dword R_WAITSTATES
++ .dword CONFIG_ETRAX_DEF_R_WAITSTATES
++ .dword R_BUS_CONFIG
++ .dword CONFIG_ETRAX_DEF_R_BUS_CONFIG
++#ifdef CONFIG_ETRAX_SDRAM
++ .dword R_SDRAM_CONFIG
++ .dword 0x09603636
++ .dword R_SDRAM_TIMING
++ .dword 0x80008002
++#else
++ .dword R_DRAM_CONFIG
++ .dword CONFIG_ETRAX_DEF_R_DRAM_CONFIG
++ .dword R_DRAM_TIMING
++ .dword CONFIG_ETRAX_DEF_R_DRAM_TIMING
++#endif
++ .dword R_PORT_PA_SET
++ .dword PA_SET_VALUE
++ .dword R_PORT_PB_SET
++ .dword PB_SET_VALUE
++ .dword 0 ; No more register values
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_832.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_832.S
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_832.S 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_832.S 2007-05-28 20:12:55.000000000 +0200
+@@ -0,0 +1,62 @@
++/*
++ * $Id: hw_settings.S,v 1.1 2001/12/17 13:59:27 bjornw Exp $
++ *
++ * This table is used by some tools to extract hardware parameters.
++ * The table should be included in the kernel and the decompressor.
++ * Don't forget to update the tools if you change this table.
++ *
++ * Copyright (C) 2001 Axis Communications AB
++ *
++ * Authors: Mikael Starvik (starvik@axis.com)
++ */
++
++#define PA_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PA_DIR << 8) | \
++ (CONFIG_ETRAX_DEF_R_PORT_PA_DATA))
++#define PB_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PB_CONFIG << 16) | \
++ (CONFIG_ETRAX_DEF_R_PORT_PB_DIR << 8) | \
++ (CONFIG_ETRAX_DEF_R_PORT_PB_DATA))
++
++ .ascii "HW_PARAM_MAGIC" ; Magic number
++ .dword 0xc0004000 ; Kernel start address
++
++ ; Debug port
++#ifdef CONFIG_ETRAX_DEBUG_PORT0
++ .dword 0
++#elif defined(CONFIG_ETRAX_DEBUG_PORT1)
++ .dword 1
++#elif defined(CONFIG_ETRAX_DEBUG_PORT2)
++ .dword 2
++#elif defined(CONFIG_ETRAX_DEBUG_PORT3)
++ .dword 3
++#else
++ .dword 4 ; No debug
++#endif
++
++ ; SDRAM or EDO DRAM?
++#ifdef CONFIG_ETRAX_SDRAM
++ .dword 1
++#else
++ .dword 0
++#endif
++
++ ; Register values
++ .dword R_WAITSTATES
++ .dword CONFIG_ETRAX_DEF_R_WAITSTATES
++ .dword R_BUS_CONFIG
++ .dword CONFIG_ETRAX_DEF_R_BUS_CONFIG
++#ifdef CONFIG_ETRAX_SDRAM
++ .dword R_SDRAM_CONFIG
++ .dword CONFIG_ETRAX_DEF_R_SDRAM_CONFIG
++ .dword R_SDRAM_TIMING
++ .dword CONFIG_ETRAX_DEF_R_SDRAM_TIMING
++#else
++ .dword R_DRAM_CONFIG
++ .dword 0x09603737
++ .dword R_DRAM_TIMING
++ .dword 0x80008002
++#endif
++ .dword R_PORT_PA_SET
++ .dword PA_SET_VALUE
++ .dword R_PORT_PB_SET
++ .dword PB_SET_VALUE
++ .dword 0 ; No more register values
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_MCM.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_MCM.S
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_MCM.S 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_MCM.S 2007-05-28 20:11:31.000000000 +0200
+@@ -0,0 +1,62 @@
++/*
++ * $Id: hw_settings.S,v 1.1 2001/12/17 13:59:27 bjornw Exp $
++ *
++ * This table is used by some tools to extract hardware parameters.
++ * The table should be included in the kernel and the decompressor.
++ * Don't forget to update the tools if you change this table.
++ *
++ * Copyright (C) 2001 Axis Communications AB
++ *
++ * Authors: Mikael Starvik (starvik@axis.com)
++ */
++
++#define PA_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PA_DIR << 8) | \
++ (CONFIG_ETRAX_DEF_R_PORT_PA_DATA))
++#define PB_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PB_CONFIG << 16) | \
++ (CONFIG_ETRAX_DEF_R_PORT_PB_DIR << 8) | \
++ (CONFIG_ETRAX_DEF_R_PORT_PB_DATA))
++
++ .ascii "HW_PARAM_MAGIC" ; Magic number
++ .dword 0xc0004000 ; Kernel start address
++
++ ; Debug port
++#ifdef CONFIG_ETRAX_DEBUG_PORT0
++ .dword 0
++#elif defined(CONFIG_ETRAX_DEBUG_PORT1)
++ .dword 1
++#elif defined(CONFIG_ETRAX_DEBUG_PORT2)
++ .dword 2
++#elif defined(CONFIG_ETRAX_DEBUG_PORT3)
++ .dword 3
++#else
++ .dword 4 ; No debug
++#endif
++
++ ; SDRAM or EDO DRAM?
++#ifdef CONFIG_ETRAX_SDRAM
++ .dword 1
++#else
++ .dword 0
++#endif
++
++ ; Register values
++ .dword R_WAITSTATES
++ .dword CONFIG_ETRAX_DEF_R_WAITSTATES
++ .dword R_BUS_CONFIG
++ .dword CONFIG_ETRAX_DEF_R_BUS_CONFIG
++#ifdef CONFIG_ETRAX_SDRAM
++ .dword R_SDRAM_CONFIG
++ .dword 0x09603636
++ .dword R_SDRAM_TIMING
++ .dword 0x80608002
++#else
++ .dword R_DRAM_CONFIG
++ .dword CONFIG_ETRAX_DEF_R_DRAM_CONFIG
++ .dword R_DRAM_TIMING
++ .dword CONFIG_ETRAX_DEF_R_DRAM_TIMING
++#endif
++ .dword R_PORT_PA_SET
++ .dword PA_SET_VALUE
++ .dword R_PORT_PB_SET
++ .dword PB_SET_VALUE
++ .dword 0 ; No more register values
diff --git a/target/linux/etrax-2.6/patches/cris/011-debug-port b/target/linux/etrax-2.6/patches/cris/011-debug-port
new file mode 100644
index 0000000000..ecd780c608
--- /dev/null
+++ b/target/linux/etrax-2.6/patches/cris/011-debug-port
@@ -0,0 +1,26 @@
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/misc.c linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/misc.c
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/misc.c 2007-05-28 21:53:52.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/misc.c 2007-05-28 22:23:16.000000000 +0200
+@@ -143,9 +143,10 @@
+ static void
+ puts(const char *s)
+ {
+-#ifndef CONFIG_ETRAX_DEBUG_PORT_NULL
+- while(*s) {
+-#ifdef CONFIG_ETRAX_DEBUG_PORT0
++#if defined(CONFIG_ETRAX_DEBUG_PORT0) || defined(CONFIG_ETRAX_DEBUG_PORT1) || defined(CONFIG_ETRAX_DEBUG_PORT2) || defined(CONFIG_ETRAX_DEBUG_PORT3) || defined(CONFIG_ETRAX_SERIAL_PORT0)
++
++while(*s) {
++#if defined(CONFIG_ETRAX_DEBUG_PORT0) || defined(CONFIG_ETRAX_SERIAL_PORT0)
+ while(!(*R_SERIAL0_STATUS & (1 << 5))) ;
+ *R_SERIAL0_TR_DATA = *s++;
+ #endif
+@@ -232,7 +233,7 @@
+ /* input_data is set in head.S */
+ inbuf = input_data;
+
+-#ifdef CONFIG_ETRAX_DEBUG_PORT0
++#if defined(CONFIG_ETRAX_DEBUG_PORT0) || defined(CONFIG_ETRAX_SERIAL_PORT0)
+ *R_SERIAL0_XOFF = 0;
+ *R_SERIAL0_BAUD = 0x99;
+ *R_SERIAL0_TR_CTRL = 0x40;
diff --git a/target/linux/etrax-2.6/patches/cris/012-splash.patch b/target/linux/etrax-2.6/patches/cris/012-splash.patch
new file mode 100644
index 0000000000..73c3f9fabe
--- /dev/null
+++ b/target/linux/etrax-2.6/patches/cris/012-splash.patch
@@ -0,0 +1,22 @@
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/misc.c linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/misc.c
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/misc.c 2007-05-28 22:35:23.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/misc.c 2007-05-28 22:40:43.000000000 +0200
+@@ -266,8 +266,16 @@
+ puts("You need an ETRAX 100LX to run linux 2.6\n");
+ while(1);
+ }
++ puts("\r\n _ _ _ \r\n");
++ puts(" | | (_) | \r\n");
++ puts(" __ _ ___ _ __ ___ ___ ___ _ _ ___| |_ ___ _ __ ___ ___ _| |_\r\n");
++ puts(" / _` |/ __| '_ ` _ \\ / _ \\/ __| | | / __| __/ _ \\ '_ ` _ \\/ __| | | __|\r\n");
++ puts(" | (_| | (__| | | | | | __/\\__ \\ |_| \\__ \\ || __/ | | | | \\__ \\_| | |_ \r\n");
++ puts(" \\__,_|\\___|_| |_| |_|\\___||___/\\__, |___/\\__\\___|_| |_| |_|___(_)_|\\__|\r\n");
++ puts(" __/ | \r\n");
++ puts(" |___/ FOXBOARD @ www.acmesystems.it \r\n");
+
+- puts("Uncompressing Linux...\n");
++ puts("Uncompressing Linux...\r\n");
+ gunzip();
+- puts("Done. Now booting the kernel.\n");
++ puts("Done. Now booting the kernel.\r\n");
+ }
diff --git a/target/linux/etrax-2.6/patches/cris/013-crisdriver-sysfs.patch b/target/linux/etrax-2.6/patches/cris/013-crisdriver-sysfs.patch
new file mode 100644
index 0000000000..7f594c4194
--- /dev/null
+++ b/target/linux/etrax-2.6/patches/cris/013-crisdriver-sysfs.patch
@@ -0,0 +1,180 @@
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/ds1302.c linux-2.6.19.2/arch/cris/arch-v10/drivers/ds1302.c
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/ds1302.c 2007-05-28 22:35:23.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/drivers/ds1302.c 2007-05-28 22:55:40.000000000 +0200
+@@ -21,7 +21,7 @@
+ #include <linux/delay.h>
+ #include <linux/bcd.h>
+ #include <linux/capability.h>
+-
++#include <linux/device.h>
+ #include <asm/uaccess.h>
+ #include <asm/system.h>
+ #include <asm/arch/svinto.h>
+@@ -480,6 +480,10 @@
+ return 0;
+ }
+
++#ifdef CONFIG_SYSFS
++static struct class *rtc_class;
++#endif
++
+ static int __init ds1302_register(void)
+ {
+ ds1302_init();
+@@ -488,7 +492,15 @@
+ ds1302_name, RTC_MAJOR_NR);
+ return -1;
+ }
+- return 0;
++
++ #ifdef CONFIG_SYSFS
++ rtc_class = class_create(THIS_MODULE, "rtc");
++ class_device_create(rtc_class, NULL,
++ MKDEV(RTC_MAJOR_NR, 0),
++ NULL, "rtc");
++ #endif
++
++ return 0;
+
+ }
+
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/eeprom.c linux-2.6.19.2/arch/cris/arch-v10/drivers/eeprom.c
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/eeprom.c 2007-05-28 22:35:23.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/drivers/eeprom.c 2007-05-28 23:03:45.000000000 +0200
+@@ -103,6 +103,7 @@
+ #include <linux/delay.h>
+ #include <linux/interrupt.h>
+ #include <linux/wait.h>
++#include <linux/device.h>
+ #include <asm/uaccess.h>
+ #include "i2c.h"
+
+@@ -185,6 +186,9 @@
+ };
+
+ /* eeprom init call. Probes for different eeprom models. */
++#ifdef CONFIG_SYSFS
++static struct class *eep_class;
++#endif
+
+ int __init eeprom_init(void)
+ {
+@@ -202,7 +206,13 @@
+ eeprom_name, EEPROM_MAJOR_NR);
+ return -1;
+ }
+-
++
++#ifdef CONFIG_SYSFS
++ eep_class = class_create(THIS_MODULE, "eep");
++ class_device_create(eep_class, NULL, MKDEV(EEPROM_MAJOR, 0), NULL, "eeprom");
++#endif
++
++
+ printk("EEPROM char device v0.3, (c) 2000 Axis Communications AB\n");
+
+ /*
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/gpio.c linux-2.6.19.2/arch/cris/arch-v10/drivers/gpio.c
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/gpio.c 2007-05-28 22:35:23.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/drivers/gpio.c 2007-05-28 22:59:27.000000000 +0200
+@@ -181,6 +181,7 @@
+ #include <linux/poll.h>
+ #include <linux/init.h>
+ #include <linux/interrupt.h>
++#include <linux/device.h>
+
+ #include <asm/etraxgpio.h>
+ #include <asm/arch/svinto.h>
+@@ -938,6 +939,10 @@
+
+ /* main driver initialization routine, called from mem.c */
+
++#ifdef CONFIG_SYSFS
++static struct class *gpio_class;
++#endif
++
+ static __init int
+ gpio_init(void)
+ {
+@@ -955,6 +960,14 @@
+ return res;
+ }
+
++#ifdef CONFIG_SYSFS
++ gpio_class = class_create(THIS_MODULE, "gpio");
++ class_device_create(gpio_class, NULL, MKDEV(GPIO_MAJOR, 0), NULL, "gpioa");
++ class_device_create(gpio_class, NULL, MKDEV(GPIO_MAJOR, 1), NULL, "gpiob");
++ class_device_create(gpio_class, NULL, MKDEV(GPIO_MAJOR, 2), NULL, "leds");
++ class_device_create(gpio_class, NULL, MKDEV(GPIO_MAJOR, 3), NULL, "gpiog");
++#endif
++
+ /* Clear all leds */
+ #if defined (CONFIG_ETRAX_CSP0_LEDS) || defined (CONFIG_ETRAX_PA_LEDS) || defined (CONFIG_ETRAX_PB_LEDS)
+ LED_NETWORK_SET(0);
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/pcf8563.c linux-2.6.19.2/arch/cris/arch-v10/drivers/pcf8563.c
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/pcf8563.c 2007-05-28 22:35:23.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/drivers/pcf8563.c 2007-05-28 23:09:02.000000000 +0200
+@@ -26,6 +26,7 @@
+ #include <linux/ioctl.h>
+ #include <linux/delay.h>
+ #include <linux/bcd.h>
++#include <linux/device.h>
+
+ #include <asm/uaccess.h>
+ #include <asm/system.h>
+@@ -344,6 +345,10 @@
+ return 0;
+ }
+
++#ifdef CONFIG_SYSFS
++static struct class *pcf8563_class;
++#endif
++
+ static int __init
+ pcf8563_register(void)
+ {
+@@ -358,6 +363,10 @@
+ "device.\n", PCF8563_NAME, PCF8563_MAJOR);
+ return -1;
+ }
++#ifdef CONFIG_SYSFS
++ pcf8563_class = class_create(THIS_MODULE, "pcf8563");
++ class_device_create(pcf8563_class, NULL, MKDEV(PCF8563_MAJOR, 0), NULL, "rtc");
++#endif
+
+ printk(KERN_INFO "%s Real-Time Clock Driver, %s\n", PCF8563_NAME,
+ DRIVER_VERSION);
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/sync_serial.c linux-2.6.19.2/arch/cris/arch-v10/drivers/sync_serial.c
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/sync_serial.c 2007-05-28 22:35:23.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/drivers/sync_serial.c 2007-05-28 23:06:41.000000000 +0200
+@@ -29,6 +29,8 @@
+ #include <asm/uaccess.h>
+ #include <asm/system.h>
+ #include <asm/sync_serial.h>
++#include <linux/device.h>
++
+ #include <asm/arch/io_interface_mux.h>
+
+ /* The receiver is a bit tricky beacuse of the continuous stream of data.*/
+@@ -241,6 +243,9 @@
+ .open = sync_serial_open,
+ .release = sync_serial_release
+ };
++#ifdef CONFIG_SYSFS
++static struct class *syncser_class;
++#endif
+
+ static int __init etrax_sync_serial_init(void)
+ {
+@@ -274,6 +279,11 @@
+ printk("unable to get major for synchronous serial port\n");
+ return -EBUSY;
+ }
++#ifdef CONFIG_SYSFS
++ syncser_class = class_create(THIS_MODULE, "syncser");
++ class_device_create(syncser_class, NULL, MKDEV(SYNC_SERIAL_MAJOR, 0), NULL, "syncser0");
++ class_device_create(syncser_class, NULL, MKDEV(SYNC_SERIAL_MAJOR, 1), NULL, "syncser1");
++#endif
+
+ /* Deselect synchronous serial ports while configuring. */
+ SETS(gen_config_ii_shadow, R_GEN_CONFIG_II, sermode1, async);
diff --git a/target/linux/etrax-2.6/patches/cris/014-partition-tables.patch b/target/linux/etrax-2.6/patches/cris/014-partition-tables.patch
new file mode 100644
index 0000000000..d32762a81e
--- /dev/null
+++ b/target/linux/etrax-2.6/patches/cris/014-partition-tables.patch
@@ -0,0 +1,102 @@
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings.S
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings.S 2007-05-29 23:30:35.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings.S 2007-05-29 23:33:44.000000000 +0200
+@@ -60,3 +60,5 @@
+ .dword R_PORT_PB_SET
+ .dword PB_SET_VALUE
+ .dword 0 ; No more register values
++ .ascii "ACME_PART_MAGIC" ; Magic number
++ .dword 0xdeadc0de
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_416.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_416.S
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_416.S 2007-05-29 23:30:35.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_416.S 2007-05-29 23:33:44.000000000 +0200
+@@ -60,3 +60,5 @@
+ .dword R_PORT_PB_SET
+ .dword PB_SET_VALUE
+ .dword 0 ; No more register values
++ .ascii "ACME_PART_MAGIC" ; Magic number
++ .dword 0xdeadc0de
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_816.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_816.S
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_816.S 2007-05-29 23:30:35.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_816.S 2007-05-29 23:33:44.000000000 +0200
+@@ -60,3 +60,5 @@
+ .dword R_PORT_PB_SET
+ .dword PB_SET_VALUE
+ .dword 0 ; No more register values
++ .ascii "ACME_PART_MAGIC" ; Magic number
++ .dword 0xdeadc0de
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_832.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_832.S
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_832.S 2007-05-29 23:30:35.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_832.S 2007-05-29 23:33:44.000000000 +0200
+@@ -60,3 +60,5 @@
+ .dword R_PORT_PB_SET
+ .dword PB_SET_VALUE
+ .dword 0 ; No more register values
++ .ascii "ACME_PART_MAGIC" ; Magic number
++ .dword 0xdeadc0de
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_MCM.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_MCM.S
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_MCM.S 2007-05-29 23:30:35.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_MCM.S 2007-05-29 23:33:44.000000000 +0200
+@@ -60,3 +60,5 @@
+ .dword R_PORT_PB_SET
+ .dword PB_SET_VALUE
+ .dword 0 ; No more register values
++ .ascii "ACME_PART_MAGIC" ; Magic number
++ .dword 0xdeadc0de
+diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/axisflashmap.c linux-2.6.19.2/arch/cris/arch-v10/drivers/axisflashmap.c
+--- linux-2.6.19.2.orig/arch/cris/arch-v10/drivers/axisflashmap.c 2007-05-29 23:30:36.000000000 +0200
++++ linux-2.6.19.2/arch/cris/arch-v10/drivers/axisflashmap.c 2007-05-29 23:36:31.000000000 +0200
+@@ -421,6 +421,11 @@
+ struct partitiontable_entry *ptable;
+ int use_default_ptable = 1; /* Until proven otherwise. */
+ const char pmsg[] = " /dev/flash%d at 0x%08x, size 0x%08x\n";
++ unsigned int kernel_part_size = 0;
++ unsigned char *flash_mem = (unsigned char*)(FLASH_CACHED_ADDR);
++ unsigned int flash_scan_count = 0;
++ const char *part_magic = "ACME_PART_MAGIC";
++ unsigned int magic_len = strlen(part_magic);
+
+ if (!(mymtd = flash_probe())) {
+ /* There's no reason to use this module if no flash chip can
+@@ -432,6 +437,32 @@
+ mymtd->name, mymtd->size);
+ axisflash_mtd = mymtd;
+ }
++ /* scan flash to findout where out partition starts */
++
++ printk(KERN_INFO "Scanning flash for end of kernel magic\n");
++ for(flash_scan_count = 0; flash_scan_count < 100000; flash_scan_count++){
++ if(strncmp(&flash_mem[flash_scan_count], part_magic, magic_len - 1) == 0){
++ //printk(KERN_INFO "Found end of kernel magic at 0x%.08X\n", flash_scan_count);
++ kernel_part_size = flash_mem[flash_scan_count + magic_len ];
++ kernel_part_size <<= 8;
++ kernel_part_size += flash_mem[flash_scan_count + magic_len + 2];
++ kernel_part_size <<= 8;
++ kernel_part_size += flash_mem[flash_scan_count + magic_len + 1];
++ kernel_part_size <<= 8;
++ kernel_part_size += flash_mem[flash_scan_count + magic_len + 3];
++ printk(KERN_INFO "Kernel ends at 0x%.08X\n", kernel_part_size);
++ flash_scan_count = 1100000;
++ }
++ }
++
++
++ if(kernel_part_size){
++ kernel_part_size = (kernel_part_size & 0xffff0000);
++ //printk(KERN_INFO "Configuring partition sizes total flash 0x%.08X - kernel 0x%.08X - rootfs 0x%.08X\n", mymtd->size, kernel_part_size, mymtd->size - kernel_part_size);
++ axis_default_partitions[0].size = kernel_part_size;
++ axis_default_partitions[1].size = mymtd->size - axis_default_partitions[0].size;
++ axis_default_partitions[1].offset = axis_default_partitions[0].size;
++ }
+
+ if (mymtd) {
+ mymtd->owner = THIS_MODULE;
+@@ -527,7 +558,7 @@
+
+ if (mymtd) {
+ if (use_default_ptable) {
+- printk(KERN_INFO " Using default partition table.\n");
++ printk(KERN_INFO " Using ACME partition table.\n");
+ err = add_mtd_partitions(mymtd, axis_default_partitions,
+ NUM_DEFAULT_PARTITIONS);
+ } else {
diff --git a/target/linux/etrax-2.6/patches/cris/015-samsung-flash-chip.patch b/target/linux/etrax-2.6/patches/cris/015-samsung-flash-chip.patch
new file mode 100644
index 0000000000..0c87fb995c
--- /dev/null
+++ b/target/linux/etrax-2.6/patches/cris/015-samsung-flash-chip.patch
@@ -0,0 +1,13 @@
+diff -urN linux-2.6.19.2.orig/drivers/mtd/chips/cfi_cmdset_0002.c linux-2.6.19.2/drivers/mtd/chips/cfi_cmdset_0002.c
+--- linux-2.6.19.2.orig/drivers/mtd/chips/cfi_cmdset_0002.c 2007-05-30 21:23:01.000000000 +0200
++++ linux-2.6.19.2/drivers/mtd/chips/cfi_cmdset_0002.c 2007-05-30 21:38:13.000000000 +0200
+@@ -291,8 +291,7 @@
+ kfree(mtd);
+ return NULL;
+ }
+-
+- if (extp->MajorVersion != '1' ||
++ if (extp->MajorVersion < '0' || extp->MajorVersion > '3' ||
+ (extp->MinorVersion < '0' || extp->MinorVersion > '4')) {
+ if (cfi->mfr == MANUFACTURER_SAMSUNG &&
+ (extp->MajorVersion == '3' && extp->MinorVersion == '3')) {
diff --git a/target/linux/etrax-2.6/patches/cris/016-auto-detect-ram.patch b/target/linux/etrax-2.6/patches/cris/016-auto-detect-ram.patch
new file mode 100644
index 0000000000..51930f2ce2
--- /dev/null
+++ b/target/linux/etrax-2.6/patches/cris/016-auto-detect-ram.patch
@@ -0,0 +1,101 @@
+diff -urN linux-2.6.19.2//arch/cris/arch-v10/boot/compressed/hw_settings.S /tmp/linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings.S
+--- linux-2.6.19.2//arch/cris/arch-v10/boot/compressed/hw_settings.S 2007-06-01 00:37:57.000000000 +0200
++++ /tmp/linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings.S 2007-06-01 00:34:55.000000000 +0200
+@@ -62,3 +62,5 @@
+ .dword 0 ; No more register values
+ .ascii "ACME_PART_MAGIC" ; Magic number
+ .dword 0xdeadc0de
++ .ascii "ACME_RAM_MAGIC" ; Magic number
++ .dword 0x2000000
+diff -urN linux-2.6.19.2//arch/cris/arch-v10/boot/compressed/hw_settings_416.S /tmp/linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_416.S
+--- linux-2.6.19.2//arch/cris/arch-v10/boot/compressed/hw_settings_416.S 2007-06-01 00:37:57.000000000 +0200
++++ /tmp/linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_416.S 2007-06-01 00:34:55.000000000 +0200
+@@ -62,3 +62,5 @@
+ .dword 0 ; No more register values
+ .ascii "ACME_PART_MAGIC" ; Magic number
+ .dword 0xdeadc0de
++ .ascii "ACME_RAM_MAGIC" ; Magic number
++ .dword 0x1000000
+diff -urN linux-2.6.19.2//arch/cris/arch-v10/boot/compressed/hw_settings_816.S /tmp/linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_816.S
+--- linux-2.6.19.2//arch/cris/arch-v10/boot/compressed/hw_settings_816.S 2007-06-01 00:37:57.000000000 +0200
++++ /tmp/linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_816.S 2007-06-01 00:34:55.000000000 +0200
+@@ -62,3 +62,5 @@
+ .dword 0 ; No more register values
+ .ascii "ACME_PART_MAGIC" ; Magic number
+ .dword 0xdeadc0de
++ .ascii "ACME_RAM_MAGIC" ; Magic number
++ .dword 0x1000000
+diff -urN linux-2.6.19.2//arch/cris/arch-v10/boot/compressed/hw_settings_832.S /tmp/linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_832.S
+--- linux-2.6.19.2//arch/cris/arch-v10/boot/compressed/hw_settings_832.S 2007-06-01 00:37:57.000000000 +0200
++++ /tmp/linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_832.S 2007-06-01 00:34:55.000000000 +0200
+@@ -62,3 +62,5 @@
+ .dword 0 ; No more register values
+ .ascii "ACME_PART_MAGIC" ; Magic number
+ .dword 0xdeadc0de
++ .ascii "ACME_RAM_MAGIC" ; Magic number
++ .dword 0x2000000
+diff -urN linux-2.6.19.2//arch/cris/arch-v10/boot/compressed/hw_settings_MCM.S /tmp/linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_MCM.S
+--- linux-2.6.19.2//arch/cris/arch-v10/boot/compressed/hw_settings_MCM.S 2007-06-01 00:37:57.000000000 +0200
++++ /tmp/linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_MCM.S 2007-06-01 00:34:55.000000000 +0200
+@@ -62,3 +62,5 @@
+ .dword 0 ; No more register values
+ .ascii "ACME_PART_MAGIC" ; Magic number
+ .dword 0xdeadc0de
++ .ascii "ACME_RAM_MAGIC" ; Magic number
++ .dword 0x1000000
+--- linux-2.6.19.2//arch/cris/kernel/setup.c 2007-06-01 00:37:55.000000000 +0200
++++ /tmp/linux-2.6.19.2/arch/cris/kernel/setup.c 2007-06-01 00:34:55.000000000 +0200
+@@ -55,6 +55,13 @@
+ * boot code and the system.
+ *
+ */
++#ifdef CONFIG_CRIS_LOW_MAP
++#define FLASH_UNCACHED_ADDR KSEG_8
++#define FLASH_CACHED_ADDR KSEG_5
++#else
++#define FLASH_UNCACHED_ADDR KSEG_E
++#define FLASH_CACHED_ADDR KSEG_F
++#endif
+
+ void __init
+ setup_arch(char **cmdline_p)
+@@ -63,15 +70,37 @@
+ unsigned long bootmap_size;
+ unsigned long start_pfn, max_pfn;
+ unsigned long memory_start;
+-
++ unsigned int ram_size = 0;
++ unsigned char *flash_mem = (unsigned char*)(FLASH_CACHED_ADDR);
++ unsigned int ram_scan_count = 0;
++ const char *ram_magic = "ACME_RAM_MAGIC";
++ unsigned int magic_len = strlen(ram_magic);
++ unsigned long dend;
+ /* register an initial console printing routine for printk's */
+
+ init_etrax_debug();
+
+ /* we should really poll for DRAM size! */
++ printk(KERN_INFO "Determinig RAM size\n");
++ for(ram_scan_count = 0; ram_scan_count < 100000; ram_scan_count++){
++ if(strncmp(&flash_mem[ram_scan_count], ram_magic, magic_len - 1) == 0){
++ ram_size = flash_mem[ram_scan_count + magic_len ];
++ ram_size <<= 8;
++ ram_size += flash_mem[ram_scan_count + magic_len + 2];
++ ram_size <<= 8;
++ ram_size += flash_mem[ram_scan_count + magic_len + 1];
++ ram_size <<= 8;
++ ram_size += flash_mem[ram_scan_count + magic_len + 3];
++ printk(KERN_INFO "RAM size is %uMB\n", 16 * ram_size);
++ ram_scan_count = 1100000;
++ }
++ }
+
+ high_memory = &dram_end;
+-
++ dend = dram_start + 16 * 1024 * 1024 * ram_size;
++ if(ram_size == 1){
++ high_memory = 0xc1000000;
++ }
+ if(romfs_in_flash || !romfs_length) {
+ /* if we have the romfs in flash, or if there is no rom filesystem,
+ * our free area starts directly after the BSS