Port to kernel 2.6.30.

There is an error in the unlzma system in the kernel.
A lzma compressed squashfs filesystem does not work for me.
This should compile and works for me on my Asus WL-500GP, please test it on more systems.

SVN-Revision: 16441

5 files changed, 0 insertions, 857 deletions

diff --git a/target/linux/brcm47xx/files-2.6.28/arch/mips/bcm47xx/cfe_env.c b/target/linux/brcm47xx/files-2.6.28/arch/mips/bcm47xx/cfe_env.c
deleted file mode 100644
index c1d5eeef59..0000000000
--- a/target/linux/brcm47xx/files-2.6.28/arch/mips/bcm47xx/cfe_env.c
+++ /dev/null
@@ -1,229 +0,0 @@
-/*
- * CFE environment variable access
- *
- * Copyright 2001-2003, Broadcom Corporation
- * Copyright 2006, Felix Fietkau <nbd@openwrt.org>
- * 
- * 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/init.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-
-#define NVRAM_SIZE       (0x1ff0)
-static char _nvdata[NVRAM_SIZE];
-static char _valuestr[256];
-
-/*
- * TLV types.  These codes are used in the "type-length-value"
- * encoding of the items stored in the NVRAM device (flash or EEPROM)
- *
- * The layout of the flash/nvram is as follows:
- *
- * <type> <length> <data ...> <type> <length> <data ...> <type_end>
- *
- * The type code of "ENV_TLV_TYPE_END" marks the end of the list.
- * The "length" field marks the length of the data section, not
- * including the type and length fields.
- *
- * Environment variables are stored as follows:
- *
- * <type_env> <length> <flags> <name> = <value>
- *
- * If bit 0 (low bit) is set, the length is an 8-bit value.
- * If bit 0 (low bit) is clear, the length is a 16-bit value
- * 
- * Bit 7 set indicates "user" TLVs.  In this case, bit 0 still
- * indicates the size of the length field.  
- *
- * Flags are from the constants below:
- *
- */
-#define ENV_LENGTH_16BITS	0x00	/* for low bit */
-#define ENV_LENGTH_8BITS	0x01
-
-#define ENV_TYPE_USER		0x80
-
-#define ENV_CODE_SYS(n,l) (((n)<<1)|(l))
-#define ENV_CODE_USER(n,l) ((((n)<<1)|(l)) | ENV_TYPE_USER)
-
-/*
- * The actual TLV types we support
- */
-
-#define ENV_TLV_TYPE_END	0x00	
-#define ENV_TLV_TYPE_ENV	ENV_CODE_SYS(0,ENV_LENGTH_8BITS)
-
-/*
- * Environment variable flags 
- */
-
-#define ENV_FLG_NORMAL		0x00	/* normal read/write */
-#define ENV_FLG_BUILTIN		0x01	/* builtin - not stored in flash */
-#define ENV_FLG_READONLY	0x02	/* read-only - cannot be changed */
-
-#define ENV_FLG_MASK		0xFF	/* mask of attributes we keep */
-#define ENV_FLG_ADMIN		0x100	/* lets us internally override permissions */
-
-
-/*  *********************************************************************
-    *  _nvram_read(buffer,offset,length)
-    *  
-    *  Read data from the NVRAM device
-    *  
-    *  Input parameters: 
-    *  	   buffer - destination buffer
-    *  	   offset - offset of data to read
-    *  	   length - number of bytes to read
-    *  	   
-    *  Return value:
-    *  	   number of bytes read, or <0 if error occured
-    ********************************************************************* */
-static int
-_nvram_read(unsigned char *nv_buf, unsigned char *buffer, int offset, int length)
-{
-    int i;
-    if (offset > NVRAM_SIZE)
-	return -1; 
-
-    for ( i = 0; i < length; i++) {
-	buffer[i] = ((volatile unsigned char*)nv_buf)[offset + i];
-    }
-    return length;
-}
-
-
-static char*
-_strnchr(const char *dest,int c,size_t cnt)
-{
-	while (*dest && (cnt > 0)) {
-	if (*dest == c) return (char *) dest;
-	dest++;
-	cnt--;
-	}
-	return NULL;
-}
-
-
-
-/*
- * Core support API: Externally visible.
- */
-
-/*
- * Get the value of an NVRAM variable
- * @param	name	name of variable to get
- * @return	value of variable or NULL if undefined
- */
-
-char* 
-cfe_env_get(unsigned char *nv_buf, char* name)
-{
-    int size;
-    unsigned char *buffer;
-    unsigned char *ptr;
-    unsigned char *envval;
-    unsigned int reclen;
-    unsigned int rectype;
-    int offset;
-    int flg;
-    
-	if (!strcmp(name, "nvram_type"))
-		return "cfe";
-	
-    size = NVRAM_SIZE;
-    buffer = &_nvdata[0];
-
-    ptr = buffer;
-    offset = 0;
-
-    /* Read the record type and length */
-    if (_nvram_read(nv_buf, ptr,offset,1) != 1) {
-	goto error;
-    }
-    
-    while ((*ptr != ENV_TLV_TYPE_END)  && (size > 1)) {
-
-	/* Adjust pointer for TLV type */
-	rectype = *(ptr);
-	offset++;
-	size--;
-
-	/* 
-	 * Read the length.  It can be either 1 or 2 bytes
-	 * depending on the code 
-	 */
-	if (rectype & ENV_LENGTH_8BITS) {
-	    /* Read the record type and length - 8 bits */
-	    if (_nvram_read(nv_buf, ptr,offset,1) != 1) {
-		goto error;
-	    }
-	    reclen = *(ptr);
-	    size--;
-	    offset++;
-	}
-	else {
-	    /* Read the record type and length - 16 bits, MSB first */
-	    if (_nvram_read(nv_buf, ptr,offset,2) != 2) {
-		goto error;
-	    }
-	    reclen = (((unsigned int) *(ptr)) << 8) + (unsigned int) *(ptr+1);
-	    size -= 2;
-	    offset += 2;
-	}
-
-	if (reclen > size)
-	    break;	/* should not happen, bad NVRAM */
-
-	switch (rectype) {
-	    case ENV_TLV_TYPE_ENV:
-		/* Read the TLV data */
-		if (_nvram_read(nv_buf, ptr,offset,reclen) != reclen)
-		    goto error;
-		flg = *ptr++;
-		envval = (unsigned char *) _strnchr(ptr,'=',(reclen-1));
-		if (envval) {
-		    *envval++ = '\0';
-		    memcpy(_valuestr,envval,(reclen-1)-(envval-ptr));
-		    _valuestr[(reclen-1)-(envval-ptr)] = '\0';
-#if 0			
-		    printk(KERN_INFO "NVRAM:%s=%s\n", ptr, _valuestr);
-#endif
-		    if(!strcmp(ptr, name)){
-			return _valuestr;
-		    }
-		    if((strlen(ptr) > 1) && !strcmp(&ptr[1], name))
-			return _valuestr;
-		}
-		break;
-		
-	    default: 
-		/* Unknown TLV type, skip it. */
-		break;
-	    }
-
-	/*
-	 * Advance to next TLV 
-	 */
-		
-	size -= (int)reclen;
-	offset += reclen;
-
-	/* Read the next record type */
-	ptr = buffer;
-	if (_nvram_read(nv_buf, ptr,offset,1) != 1)
-	    goto error;
-	}
-
-error:
-    return NULL;
-
-}
-
diff --git a/target/linux/brcm47xx/files-2.6.28/arch/mips/bcm47xx/include/nvram.h b/target/linux/brcm47xx/files-2.6.28/arch/mips/bcm47xx/include/nvram.h
deleted file mode 100644
index 6bb18e8e5f..0000000000
--- a/target/linux/brcm47xx/files-2.6.28/arch/mips/bcm47xx/include/nvram.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- *  Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
- *
- *  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.
- */
-
-#ifndef __NVRAM_H
-#define __NVRAM_H
-
-struct nvram_header {
-	u32 magic;
-	u32 len;
-	u32 crc_ver_init;	/* 0:7 crc, 8:15 ver, 16:31 sdram_init */
-	u32 config_refresh;	/* 0:15 sdram_config, 16:31 sdram_refresh */
-	u32 config_ncdl;	/* ncdl values for memc */
-};
-
-struct nvram_tuple {
-	char *name;
-	char *value;
-	struct nvram_tuple *next;
-};
-
-#define NVRAM_HEADER		0x48534C46	/* 'FLSH' */
-#define NVRAM_VERSION		1
-#define NVRAM_HEADER_SIZE	20
-#define NVRAM_SPACE		0x8000
-
-#define NVRAM_MAX_VALUE_LEN 255
-#define NVRAM_MAX_PARAM_LEN 64
-
-char *nvram_get(const char *name);
-
-#endif
diff --git a/target/linux/brcm47xx/files-2.6.28/arch/mips/bcm47xx/nvram.c b/target/linux/brcm47xx/files-2.6.28/arch/mips/bcm47xx/nvram.c
deleted file mode 100644
index 3f32ad9d6e..0000000000
--- a/target/linux/brcm47xx/files-2.6.28/arch/mips/bcm47xx/nvram.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * BCM947xx nvram variable access
- *
- * Copyright 2005, Broadcom Corporation
- * Copyright 2006, Felix Fietkau <nbd@openwrt.org>
- * 
- * 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/init.h>
-#include <linux/module.h>
-#include <linux/ssb/ssb.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/slab.h>
-#include <asm/byteorder.h>
-#include <asm/bootinfo.h>
-#include <asm/addrspace.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-
-#include <nvram.h>
-
-#define MB * 1048576
-extern struct ssb_bus ssb;
-
-static char nvram_buf[NVRAM_SPACE];
-static int cfe_env;
-extern char *cfe_env_get(char *nv_buf, const char *name);
-		
-/* Probe for NVRAM header */
-static void __init early_nvram_init(void)
-{
-	struct ssb_mipscore *mcore = &ssb.mipscore;
-	struct nvram_header *header;
-	int i;
-	u32 base, lim, off;
-	u32 *src, *dst;
-	
-	base = mcore->flash_window;
-	lim = mcore->flash_window_size;
-	cfe_env = 0;
-
-	
-	/* XXX: hack for supporting the CFE environment stuff on WGT634U */
-	if (lim >= 8 MB) {
-		src = (u32 *) KSEG1ADDR(base + 8 MB - 0x2000);
-		dst = (u32 *) nvram_buf;
-
-		if ((*src & 0xff00ff) == 0x000001) {
-			printk("early_nvram_init: WGT634U NVRAM found.\n");
-
-			for (i = 0; i < 0x1ff0; i++) {
-				if (*src == 0xFFFFFFFF)
-					break;
-				*dst++ = *src++;
-			}
-			cfe_env = 1;
-			return;
-		}
-	}
-
-	off = 0x20000;
-	while (off <= lim) {
-		/* Windowed flash access */
-		header = (struct nvram_header *) KSEG1ADDR(base + off - NVRAM_SPACE);
-		if (header->magic == NVRAM_HEADER)
-			goto found;
-		off <<= 1;
-	}
-
-	/* Try embedded NVRAM at 4 KB and 1 KB as last resorts */
-	header = (struct nvram_header *) KSEG1ADDR(base + 4096);
-	if (header->magic == NVRAM_HEADER)
-		goto found;
-	
-	header = (struct nvram_header *) KSEG1ADDR(base + 1024);
-	if (header->magic == NVRAM_HEADER)
-		goto found;
-	
-	return;
-
-found:
-	src = (u32 *) header;
-	dst = (u32 *) nvram_buf;
-	for (i = 0; i < sizeof(struct nvram_header); i += 4)
-		*dst++ = *src++;
-	for (; i < header->len && i < NVRAM_SPACE; i += 4)
-		*dst++ = le32_to_cpu(*src++);
-}
-
-char *nvram_get(const char *name)
-{
-	char *var, *value, *end, *eq;
-
-	if (!name)
-		return NULL;
-
-	if (!nvram_buf[0])
-		early_nvram_init();
-
-	if (cfe_env)
-		return cfe_env_get(nvram_buf, name);
-
-	/* Look for name=value and return value */
-	var = &nvram_buf[sizeof(struct nvram_header)];
-	end = nvram_buf + sizeof(nvram_buf) - 2;
-	end[0] = end[1] = '\0';
-	for (; *var; var = value + strlen(value) + 1) {
-		if (!(eq = strchr(var, '=')))
-			break;
-		value = eq + 1;
-		if ((eq - var) == strlen(name) && strncmp(var, name, (eq - var)) == 0)
-			return value;
-	}
-
-	return NULL;
-}
-
-EXPORT_SYMBOL(nvram_get);
diff --git a/target/linux/brcm47xx/files-2.6.28/arch/mips/include/asm/mach-bcm47xx/kernel-entry-init.h b/target/linux/brcm47xx/files-2.6.28/arch/mips/include/asm/mach-bcm47xx/kernel-entry-init.h
deleted file mode 100644
index 7df0dc2b5a..0000000000
--- a/target/linux/brcm47xx/files-2.6.28/arch/mips/include/asm/mach-bcm47xx/kernel-entry-init.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2005 Embedded Alley Solutions, Inc
- * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org)
- * Copyright (C) 2006 Michael Buesch
- */
-#ifndef __ASM_MACH_GENERIC_KERNEL_ENTRY_H
-#define __ASM_MACH_GENERIC_KERNEL_ENTRY_H
-
-/* Intentionally empty macro, used in head.S. Override in
- * arch/mips/mach-xxx/kernel-entry-init.h when necessary.
- */
-	.macro	kernel_entry_setup
-	.endm
-
-/*
- * Do SMP slave processor setup necessary before we can savely execute C code.
- */
-	.macro	smp_slave_setup
-	.endm
-
-
-#endif /* __ASM_MACH_GENERIC_KERNEL_ENTRY_H */
diff --git a/target/linux/brcm47xx/files-2.6.28/drivers/mtd/maps/bcm47xx-flash.c b/target/linux/brcm47xx/files-2.6.28/drivers/mtd/maps/bcm47xx-flash.c
deleted file mode 100644
index 3ceec403cf..0000000000
--- a/target/linux/brcm47xx/files-2.6.28/drivers/mtd/maps/bcm47xx-flash.c
+++ /dev/null
@@ -1,440 +0,0 @@
-/*
- *  Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
- *  Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org>
- *  Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org)
- *
- *  original functions for finding root filesystem from Mike Baker 
- *
- *  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.
- *
- *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
- *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
- *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
- *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
- *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *  You should have received a copy of the  GNU General Public License along
- *  with this program; if not, write  to the Free Software Foundation, Inc.,
- *  675 Mass Ave, Cambridge, MA 02139, USA.
- * 
- *  Copyright 2001-2003, Broadcom Corporation
- *  All Rights Reserved.
- * 
- *  THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
- *  KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
- *  SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
- *  FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
- *
- *  Flash mapping for BCM947XX boards
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/wait.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#ifdef CONFIG_MTD_PARTITIONS
-#include <linux/mtd/partitions.h>
-#endif
-#include <linux/crc32.h>
-#ifdef CONFIG_SSB
-#include <linux/ssb/ssb.h>
-#endif
-#include <asm/io.h>
-
-
-#define TRX_MAGIC	0x30524448	/* "HDR0" */
-#define TRX_VERSION	1
-#define TRX_MAX_LEN	0x3A0000
-#define TRX_NO_HEADER	1		/* Do not write TRX header */	
-#define TRX_GZ_FILES	0x2     /* Contains up to TRX_MAX_OFFSET individual gzip files */
-#define TRX_MAX_OFFSET	3
-
-struct trx_header {
-	u32 magic;		/* "HDR0" */
-	u32 len;		/* Length of file including header */
-	u32 crc32;		/* 32-bit CRC from flag_version to end of file */
-	u32 flag_version;	/* 0:15 flags, 16:31 version */
-	u32 offsets[TRX_MAX_OFFSET];	/* Offsets of partitions from start of header */
-};
-
-#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
-#define NVRAM_SPACE 0x8000
-#define WINDOW_ADDR 0x1fc00000
-#define WINDOW_SIZE 0x400000
-#define BUSWIDTH 2
-
-#ifdef CONFIG_SSB
-extern struct ssb_bus ssb_bcm47xx;
-#endif
-static struct mtd_info *bcm47xx_mtd;
-
-static void bcm47xx_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
-{
-	if (len==1) {
-		memcpy_fromio(to, map->virt + from, len);
-	} else {
-		int i;
-		u16 *dest = (u16 *) to;
-		u16 *src  = (u16 *) (map->virt + from);
-		for (i = 0; i < (len / 2); i++) {
-			dest[i] = src[i];
-		}
-		if (len & 1)
-			*((u8 *)dest+len-1) = src[i] & 0xff;
-	}
-}
-
-static struct map_info bcm47xx_map = {
-	name: "Physically mapped flash",
-	size: WINDOW_SIZE,
-	bankwidth: BUSWIDTH,
-	phys: WINDOW_ADDR,
-};
-
-#ifdef CONFIG_MTD_PARTITIONS
-
-static struct mtd_partition bcm47xx_parts[] = {
-	{ name: "cfe",	offset: 0, size: 0, mask_flags: MTD_WRITEABLE, },
-	{ name: "linux", offset: 0, size: 0, },
-	{ name: "rootfs", offset: 0, size: 0, },
-	{ name: "nvram", offset: 0, size: 0, },
-	{ name: NULL, },
-};
-
-static int __init
-find_cfe_size(struct mtd_info *mtd, size_t size)
-{
-	struct trx_header *trx;
-	unsigned char buf[512];
-	int off;
-	size_t len;
-	int blocksize;
-
-	trx = (struct trx_header *) buf;
-
-	blocksize = mtd->erasesize;
-	if (blocksize < 0x10000)
-		blocksize = 0x10000;
-
-	for (off = (128*1024); off < size; off += blocksize) {
-		memset(buf, 0xe5, sizeof(buf));
-
-		/*
-		 * Read into buffer 
-		 */
-		if (mtd->read(mtd, off, sizeof(buf), &len, buf) ||
-		    len != sizeof(buf))
-			continue;
-
-		/* found a TRX header */
-		if (le32_to_cpu(trx->magic) == TRX_MAGIC) {
-			goto found;
-		}
-	}
-
-	printk(KERN_NOTICE
-	       "%s: Couldn't find bootloader size\n",
-	       mtd->name);
-	return -1;
-
- found:
-	printk(KERN_NOTICE "bootloader size: %d\n", off);
-	return off;
-
-}
-
-/*
- * Copied from mtdblock.c
- *
- * Cache stuff...
- * 
- * Since typical flash erasable sectors are much larger than what Linux's
- * buffer cache can handle, we must implement read-modify-write on flash
- * sectors for each block write requests.  To avoid over-erasing flash sectors
- * and to speed things up, we locally cache a whole flash sector while it is
- * being written to until a different sector is required.
- */
-
-static void erase_callback(struct erase_info *done)
-{
-	wait_queue_head_t *wait_q = (wait_queue_head_t *)done->priv;
-	wake_up(wait_q);
-}
-
-static int erase_write (struct mtd_info *mtd, unsigned long pos, 
-			int len, const char *buf)
-{
-	struct erase_info erase;
-	DECLARE_WAITQUEUE(wait, current);
-	wait_queue_head_t wait_q;
-	size_t retlen;
-	int ret;
-
-	/*
-	 * First, let's erase the flash block.
-	 */
-
-	init_waitqueue_head(&wait_q);
-	erase.mtd = mtd;
-	erase.callback = erase_callback;
-	erase.addr = pos;
-	erase.len = len;
-	erase.priv = (u_long)&wait_q;
-
-	set_current_state(TASK_INTERRUPTIBLE);
-	add_wait_queue(&wait_q, &wait);
-
-	ret = mtd->erase(mtd, &erase);
-	if (ret) {
-		set_current_state(TASK_RUNNING);
-		remove_wait_queue(&wait_q, &wait);
-		printk (KERN_WARNING "erase of region [0x%lx, 0x%x] "
-				     "on \"%s\" failed\n",
-			pos, len, mtd->name);
-		return ret;
-	}
-
-	schedule();  /* Wait for erase to finish. */
-	remove_wait_queue(&wait_q, &wait);
-
-	/*
-	 * Next, writhe data to flash.
-	 */
-
-	ret = mtd->write (mtd, pos, len, &retlen, buf);
-	if (ret)
-		return ret;
-	if (retlen != len)
-		return -EIO;
-	return 0;
-}
-
-
-
-
-static int __init
-find_root(struct mtd_info *mtd, size_t size, struct mtd_partition *part)
-{
-	struct trx_header trx, *trx2;
-	unsigned char buf[512], *block;
-	int off, blocksize;
-	u32 i, crc = ~0;
-	size_t len;
-	struct squashfs_super_block *sb = (struct squashfs_super_block *) buf;
-
-	blocksize = mtd->erasesize;
-	if (blocksize < 0x10000)
-		blocksize = 0x10000;
-
-	for (off = (128*1024); off < size; off += blocksize) {
-		memset(&trx, 0xe5, sizeof(trx));
-
-		/*
-		 * Read into buffer 
-		 */
-		if (mtd->read(mtd, off, sizeof(trx), &len, (char *) &trx) ||
-		    len != sizeof(trx))
-			continue;
-
-		/* found a TRX header */
-		if (le32_to_cpu(trx.magic) == TRX_MAGIC) {
-			part->offset = le32_to_cpu(trx.offsets[2]) ? : 
-				le32_to_cpu(trx.offsets[1]);
-			part->size = le32_to_cpu(trx.len); 
-
-			part->size -= part->offset;
-			part->offset += off;
-
-			goto found;
-		}
-	}
-
-	printk(KERN_NOTICE
-	       "%s: Couldn't find root filesystem\n",
-	       mtd->name);
-	return -1;
-
- found:
-	if (part->size == 0)
-		return 0;
-	
-	if (mtd->read(mtd, part->offset, sizeof(buf), &len, buf) || len != sizeof(buf))
-		return 0;
-
-	/* Move the fs outside of the trx */
-	part->size = 0;
-
-	if (trx.len != part->offset + part->size - off) {
-		/* Update the trx offsets and length */
-		trx.len = part->offset + part->size - off;
-	
-		/* Update the trx crc32 */
-		for (i = (u32) &(((struct trx_header *)NULL)->flag_version); i <= trx.len; i += sizeof(buf)) {
-			if (mtd->read(mtd, off + i, sizeof(buf), &len, buf) || len != sizeof(buf))
-				return 0;
-			crc = crc32_le(crc, buf, min(sizeof(buf), trx.len - i));
-		}
-		trx.crc32 = crc;
-
-		/* read first eraseblock from the trx */
-		block = kmalloc(mtd->erasesize, GFP_KERNEL);
-		trx2 = (struct trx_header *) block;
-		if (mtd->read(mtd, off, mtd->erasesize, &len, block) || len != mtd->erasesize) {
-			printk("Error accessing the first trx eraseblock\n");
-			return 0;
-		}
-		
-		printk("Updating TRX offsets and length:\n");
-		printk("old trx = [0x%08x, 0x%08x, 0x%08x], len=0x%08x crc32=0x%08x\n", trx2->offsets[0], trx2->offsets[1], trx2->offsets[2], trx2->len, trx2->crc32);
-		printk("new trx = [0x%08x, 0x%08x, 0x%08x], len=0x%08x crc32=0x%08x\n",   trx.offsets[0],   trx.offsets[1],   trx.offsets[2],   trx.len, trx.crc32);
-
-		/* Write updated trx header to the flash */
-		memcpy(block, &trx, sizeof(trx));
-		if (mtd->unlock)
-			mtd->unlock(mtd, off, mtd->erasesize);
-		erase_write(mtd, off, mtd->erasesize, block);
-		if (mtd->sync)
-			mtd->sync(mtd);
-		kfree(block);
-		printk("Done\n");
-	}
-	
-	return part->size;
-}
-
-struct mtd_partition * __init
-init_mtd_partitions(struct mtd_info *mtd, size_t size)
-{
-	int cfe_size;
-
-	if ((cfe_size = find_cfe_size(mtd,size)) < 0)
-		return NULL;
-
-	/* boot loader */
-	bcm47xx_parts[0].offset = 0;
-	bcm47xx_parts[0].size   = cfe_size;
-
-	/* nvram */
-	if (cfe_size != 384 * 1024) {
-		bcm47xx_parts[3].offset = size - ROUNDUP(NVRAM_SPACE, mtd->erasesize);
-		bcm47xx_parts[3].size   = ROUNDUP(NVRAM_SPACE, mtd->erasesize);
-	} else {
-		/* nvram (old 128kb config partition on netgear wgt634u) */
-		bcm47xx_parts[3].offset = bcm47xx_parts[0].size;
-		bcm47xx_parts[3].size   = ROUNDUP(NVRAM_SPACE, mtd->erasesize);
-	}
-
-	/* linux (kernel and rootfs) */
-	if (cfe_size != 384 * 1024) {
-		bcm47xx_parts[1].offset = bcm47xx_parts[0].size;
-		bcm47xx_parts[1].size   = bcm47xx_parts[3].offset - 
-			bcm47xx_parts[1].offset;
-	} else {
-		/* do not count the elf loader, which is on one block */
-		bcm47xx_parts[1].offset = bcm47xx_parts[0].size + 
-			bcm47xx_parts[3].size + mtd->erasesize;
-		bcm47xx_parts[1].size   = size - 
-			bcm47xx_parts[0].size - 
-			(2*bcm47xx_parts[3].size) - 
-			mtd->erasesize;
-	}
-
-	/* find and size rootfs */
-	find_root(mtd,size,&bcm47xx_parts[2]);
-	bcm47xx_parts[2].size = size - bcm47xx_parts[2].offset - bcm47xx_parts[3].size;
-
-	return bcm47xx_parts;
-}
-#endif
-
-int __init init_bcm47xx_map(void)
-{
-#ifdef CONFIG_SSB
-	struct ssb_mipscore *mcore = &ssb_bcm47xx.mipscore;
-#endif
-	size_t size;
-	int ret = 0;
-#ifdef CONFIG_MTD_PARTITIONS
-	struct mtd_partition *parts;
-	int i;
-#endif
-
-#ifdef CONFIG_SSB
-	u32 window = mcore->flash_window;
-	u32 window_size = mcore->flash_window_size;
-
-	printk("flash init: 0x%08x 0x%08x\n", window, window_size);
-	bcm47xx_map.phys = window;
-	bcm47xx_map.size = window_size;
-	bcm47xx_map.bankwidth = mcore->flash_buswidth;
-	bcm47xx_map.virt = ioremap_nocache(window, window_size);
-#else
-	printk("flash init: 0x%08x 0x%08x\n", WINDOW_ADDR, WINDOW_SIZE);
-	bcm47xx_map.virt = ioremap_nocache(WINDOW_ADDR, WINDOW_SIZE);
-#endif
-
-	if (!bcm47xx_map.virt) {
-		printk("Failed to ioremap\n");
-		return -EIO;
-	}
-
-	simple_map_init(&bcm47xx_map);
-	
-	if (!(bcm47xx_mtd = do_map_probe("cfi_probe", &bcm47xx_map))) {
-		printk("Failed to do_map_probe\n");
-		iounmap((void *)bcm47xx_map.virt);
-		return -ENXIO;
-	}
-
-	/* override copy_from routine */
- 	bcm47xx_map.copy_from = bcm47xx_map_copy_from;
-
-	bcm47xx_mtd->owner = THIS_MODULE;
-
-	size = bcm47xx_mtd->size;
-
-	printk(KERN_NOTICE "Flash device: 0x%x at 0x%x\n", size, WINDOW_ADDR);
-
-#ifdef CONFIG_MTD_PARTITIONS
-	parts = init_mtd_partitions(bcm47xx_mtd, size);
-	for (i = 0; parts[i].name; i++);
-	ret = add_mtd_partitions(bcm47xx_mtd, parts, i);
-	if (ret) {
-		printk(KERN_ERR "Flash: add_mtd_partitions failed\n");
-		goto fail;
-	}
-#endif
-	return 0;
-
- fail:
-	if (bcm47xx_mtd)
-		map_destroy(bcm47xx_mtd);
-	if (bcm47xx_map.virt)
-		iounmap((void *)bcm47xx_map.virt);
-	bcm47xx_map.virt = 0;
-	return ret;
-}
-
-void __exit cleanup_bcm47xx_map(void)
-{
-#ifdef CONFIG_MTD_PARTITIONS
-	del_mtd_partitions(bcm47xx_mtd);
-#endif
-	map_destroy(bcm47xx_mtd);
-	iounmap((void *)bcm47xx_map.virt);
-}
-
-module_init(init_bcm47xx_map);
-module_exit(cleanup_bcm47xx_map);