diff options
Diffstat (limited to 'target/linux/etrax/patches/cris/002-arch-cris.patch')
| -rw-r--r-- | target/linux/etrax/patches/cris/002-arch-cris.patch | 24914 |
1 files changed, 0 insertions, 24914 deletions
diff --git a/target/linux/etrax/patches/cris/002-arch-cris.patch b/target/linux/etrax/patches/cris/002-arch-cris.patch deleted file mode 100644 index ee35210cd5..0000000000 --- a/target/linux/etrax/patches/cris/002-arch-cris.patch +++ /dev/null @@ -1,24914 +0,0 @@ -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(¤t->sighand->siglock); -- saveset = current->blocked; -- siginitset(¤t->blocked, mask); -- recalc_sigpending(); -- spin_unlock_irq(¤t->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(¤t->sighand->siglock); -- saveset = current->blocked; -- current->blocked = newset; -+ current->saved_sigmask = current->blocked; -+ siginitset(¤t->blocked, mask); - recalc_sigpending(); - spin_unlock_irq(¤t->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(¤t->sighand->siglock); -+ sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); -+ if (!(ka->sa.sa_flags & SA_NODEFER)) -+ sigaddset(¤t->blocked,sig); -+ recalc_sigpending(); -+ spin_unlock_irq(¤t->sighand->siglock); -+ } - -- spin_lock_irq(¤t->sighand->siglock); -- sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); -- if (!(ka->sa.sa_flags & SA_NODEFER)) -- sigaddset(¤t->blocked,sig); -- recalc_sigpending(); -- spin_unlock_irq(¤t->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 = ¤t->saved_sigmask; -+ else - oldset = ¤t->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, ¤t->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 *)®.pid); -- -+ - } else if (regno == SRS) { - /* 8-bit register. */ - *valptr = (unsigned int)(*(unsigned char *)((char *)®.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 *)®, &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(¤t->sighand->siglock); -- -- saveset = current->blocked; -- -+ current->saved_sigmask = current->blocked; - siginitset(¤t->blocked, mask); -- - recalc_sigpending(); - spin_unlock_irq(¤t->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(¤t->sighand->siglock); -- -- saveset = current->blocked; -- current->blocked = newset; -- -- recalc_sigpending(); -- spin_unlock_irq(¤t->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(¤t->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(¤t->sighand->siglock); -- sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); -- if (!(ka->sa.sa_flags & SA_NODEFER)) -- sigaddset(¤t->blocked,sig); -- recalc_sigpending(); -- spin_unlock_irq(¤t->sighand->siglock); -+ if (ret == 0) { -+ spin_lock_irq(¤t->sighand->siglock); -+ sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); -+ if (!(ka->sa.sa_flags & SA_NODEFER)) -+ sigaddset(¤t->blocked,sig); -+ recalc_sigpending(); -+ spin_unlock_irq(¤t->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 = ¤t->saved_sigmask; -+ else - oldset = ¤t->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, ¤t->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. |