diff options
Diffstat (limited to 'target/linux/brcm47xx/files-2.6.32')
5 files changed, 891 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/files-2.6.32/arch/mips/bcm47xx/cfe_env.c b/target/linux/brcm47xx/files-2.6.32/arch/mips/bcm47xx/cfe_env.c new file mode 100644 index 0000000..c1d5eee --- /dev/null +++ b/target/linux/brcm47xx/files-2.6.32/arch/mips/bcm47xx/cfe_env.c @@ -0,0 +1,229 @@ +/* + * 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-2.6.32/arch/mips/bcm47xx/include/nvram.h b/target/linux/brcm47xx/files-2.6.32/arch/mips/bcm47xx/include/nvram.h new file mode 100644 index 0000000..6bb18e8 --- /dev/null +++ b/target/linux/brcm47xx/files-2.6.32/arch/mips/bcm47xx/include/nvram.h @@ -0,0 +1,37 @@ +/* + * 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-2.6.32/arch/mips/bcm47xx/nvram.c b/target/linux/brcm47xx/files-2.6.32/arch/mips/bcm47xx/nvram.c new file mode 100644 index 0000000..3f32ad9 --- /dev/null +++ b/target/linux/brcm47xx/files-2.6.32/arch/mips/bcm47xx/nvram.c @@ -0,0 +1,125 @@ +/* + * 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-2.6.32/arch/mips/include/asm/mach-bcm47xx/kernel-entry-init.h b/target/linux/brcm47xx/files-2.6.32/arch/mips/include/asm/mach-bcm47xx/kernel-entry-init.h new file mode 100644 index 0000000..7df0dc2 --- /dev/null +++ b/target/linux/brcm47xx/files-2.6.32/arch/mips/include/asm/mach-bcm47xx/kernel-entry-init.h @@ -0,0 +1,26 @@ +/* + * 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-2.6.32/drivers/mtd/maps/bcm47xx-flash.c b/target/linux/brcm47xx/files-2.6.32/drivers/mtd/maps/bcm47xx-flash.c new file mode 100644 index 0000000..61605d3 --- /dev/null +++ b/target/linux/brcm47xx/files-2.6.32/drivers/mtd/maps/bcm47xx-flash.c @@ -0,0 +1,474 @@ +/* + * 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_dual_image_off (struct mtd_info *mtd, size_t size) +{ + struct trx_header trx; + int off, blocksize; + size_t len; + + 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 last TRX header */ + if (le32_to_cpu(trx.magic) == TRX_MAGIC){ + if (le32_to_cpu(trx.flag_version >> 16)==2){ + printk("dual image TRX header found\n"); + return size/2; + } else { + return 0; + } + } + } + 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; + + 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; + int dual_image_offset = 0; + + 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); + } + + /* dual image offset*/ + printk("Looking for dual image\n"); + dual_image_offset=find_dual_image_off(mtd,size); + /* 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 - dual_image_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 - dual_image_offset - 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); |