diff options
Diffstat (limited to 'target/linux/brcm63xx-2.6/files/drivers/mtd')
-rw-r--r-- | target/linux/brcm63xx-2.6/files/drivers/mtd/maps/bcm963xx-flash.c | 669 |
1 files changed, 433 insertions, 236 deletions
diff --git a/target/linux/brcm63xx-2.6/files/drivers/mtd/maps/bcm963xx-flash.c b/target/linux/brcm63xx-2.6/files/drivers/mtd/maps/bcm963xx-flash.c index c4c4526b49..c7013cc975 100644 --- a/target/linux/brcm63xx-2.6/files/drivers/mtd/maps/bcm963xx-flash.c +++ b/target/linux/brcm63xx-2.6/files/drivers/mtd/maps/bcm963xx-flash.c @@ -1,277 +1,474 @@ /* - * $Id$ - * Copyright (C) 2006 Florian Fainelli <florian@openwrt.org> - * Mike Albon <malbon@openwrt.org> - * Copyright (C) $Date$ $Author$ + * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org> + * Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org> + * Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.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. + * original functions for finding root filesystem from Mike Baker * - * This program 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. + * 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. * - * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/* This is the BCM963xx flash map driver, in its actual state it only supports BCM96348 devices - * this driver is able to manage both bootloader we found on these boards : CFE and RedBoot - * - * RedBoot : - * - this bootloader allows us to parse partitions and therefore deduce the MTD partition table + * 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. * - * CFE : - * - CFE partitionning can be detected as for BCM947xx devices + * 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 BCM963XX boards */ -#include <asm/io.h> #include <linux/init.h> +#include <linux/module.h> +#include <linux/types.h> #include <linux/kernel.h> -#include <linux/mtd/map.h> +#include <linux/wait.h> #include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#ifdef CONFIG_MTD_PARTITIONS #include <linux/mtd/partitions.h> -#include <linux/vmalloc.h> -#include <board.h> +#endif +#include <linux/squashfs_fs.h> +#include <linux/jffs2.h> +#include <linux/crc32.h> +#include <asm/io.h> -#define WINDOW_ADDR 0x1FC00000 /* Real address of the flash */ -#define WINDOW_SIZE 0x400000 /* Size of flash */ -#define BUSWIDTH 2 /* Buswidth */ -#define EXTENDED_SIZE 0xBFC00000 /* Extended flash address */ -#define IMAGE_LEN 10 /* Length of Length Field */ -#define ADDRESS_LEN 12 /* Length of Address field */ -#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y)) +#include <asm/mach-bcm963xx/bootloaders.h> -extern int boot_loader_type; /* For RedBoot / CFE detection */ +extern int boot_loader_type; extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts, unsigned long fis_origin); static struct mtd_partition *parsed_parts; -static void __exit bcm963xx_mtd_cleanup(void); -static struct mtd_info *bcm963xx_mtd_info; +#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 -static struct map_info bcm963xx_map = { - .name = "bcm963xx", - .size = WINDOW_SIZE, - .bankwidth = BUSWIDTH, - .phys = WINDOW_ADDR, +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 -int parse_cfe_partitions( struct mtd_info *master, struct mtd_partition **pparts) -{ - int nrparts = 2, curpart = 0; // CFE and NVRAM always present. - struct bcm963xx_cfe_map { - unsigned char tagVersion[4]; // Version of the image tag - unsigned char sig_1[20]; // Company Line 1 - unsigned char sig_2[14]; // Company Line 2 - unsigned char chipid[6]; // Chip this image is for - unsigned char boardid[16]; // Board name - unsigned char bigEndian[2]; // Map endianness -- 1 BE 0 LE - unsigned char totalLength[IMAGE_LEN]; //Total length of image - unsigned char cfeAddress[ADDRESS_LEN]; // Address in memory of CFE - unsigned char cfeLength[IMAGE_LEN]; // Size of CFE - unsigned char rootAddress[ADDRESS_LEN]; // Address in memory of rootfs - unsigned char rootLength[IMAGE_LEN]; // Size of rootfs - unsigned char kernelAddress[ADDRESS_LEN]; // Address in memory of kernel - unsigned char kernelLength[IMAGE_LEN]; // Size of kernel - unsigned char dualImage[2]; // Unused at present - unsigned char inactiveFlag[2]; // Unused at present - unsigned char reserved1[74]; // Reserved area not in use - unsigned char imageCRC[4]; // CRC32 of images - unsigned char reserved2[16]; // Unused at present - unsigned char headerCRC[4]; // CRC32 of header excluding tagVersion - unsigned char reserved3[16]; // Unused at present - } *buf; - struct mtd_partition *parts; - int ret; - size_t retlen; - unsigned int rootfsaddr, kerneladdr, spareaddr; - unsigned int rootfslen, kernellen, sparelen, totallen; - int namelen = 0; - int i; - // Allocate memory for buffer - buf = vmalloc(sizeof(struct bcm963xx_cfe_map)); - - if (!buf) - return -ENOMEM; - - // Get the tag - ret = master->read(master,master->erasesize,sizeof(struct bcm963xx_cfe_map), &retlen, (void *)buf); - if (retlen != sizeof(struct bcm963xx_cfe_map)){ - vfree(buf); - return -EIO; - }; - printk("bcm963xx: CFE boot tag found with version %s and board type %s.\n",buf->tagVersion,buf->boardid); - // Get the values and calculate - sscanf(buf->rootAddress,"%u", &rootfsaddr); - rootfsaddr = rootfsaddr - EXTENDED_SIZE; - sscanf(buf->rootLength, "%u", &rootfslen); - sscanf(buf->kernelAddress, "%u", &kerneladdr); - kerneladdr = kerneladdr - EXTENDED_SIZE; - sscanf(buf->kernelLength, "%u", &kernellen); - sscanf(buf->totalLength, "%u", &totallen); - spareaddr = ROUNDUP(totallen,master->erasesize) + master->erasesize; - sparelen = master->size - spareaddr - master->erasesize; - // Determine number of partitions - namelen = 8; - if (rootfslen > 0){ - nrparts++; - namelen =+ 6; - }; - if (kernellen > 0){ - nrparts++; - namelen =+ 6; - }; - if (sparelen > 0){ - nrparts++; - namelen =+ 6; - }; - // Ask kernel for more memory. - parts = kmalloc(sizeof(*parts)*nrparts+10*nrparts, GFP_KERNEL); - if (!parts){ - vfree(buf); - return -ENOMEM; - }; - memset(parts,0,sizeof(*parts)*nrparts+10*nrparts); - // Start building partition list - parts[curpart].name = "CFE"; - parts[curpart].offset = 0; - parts[curpart].size = master->erasesize; - curpart++; - if (kernellen > 0){ - parts[curpart].name = "Kernel"; - parts[curpart].offset = kerneladdr; - parts[curpart].size = kernellen; - curpart++; - }; - if (rootfslen > 0){ - parts[curpart].name = "Rootfs"; - parts[curpart].offset = rootfsaddr; - parts[curpart].size = rootfslen; - curpart++; - }; - if (sparelen > 0){ - parts[curpart].name = "OpenWrt"; - parts[curpart].offset = spareaddr; - parts[curpart].size = sparelen; - curpart++; - }; - parts[curpart].name = "NVRAM"; - parts[curpart].offset = master->size - master->erasesize; - parts[curpart].size = master->erasesize; - for (i = 0; i < nrparts; i++) { - printk("bcm963xx: Partition %d is %s offset %x and length %x\n", i, parts[i].name, parts[i].offset, parts[i].size); - } - *pparts = parts; - vfree(buf); - return nrparts; +#define EXTENDED_SIZE 0xBFC00000 /* Extended flash address */ + +static struct mtd_info *bcm963xx_mtd; + +static struct map_info bcm963xx_map = { + .name = "Physically mapped flash", + .size = WINDOW_SIZE, + .bankwidth = BUSWIDTH, + .phys = WINDOW_ADDR, }; +#ifdef CONFIG_MTD_PARTITIONS + static struct mtd_partition bcm963xx_parts[] = { - { name: "bootloader", size: 0, offset: 0, mask_flags: MTD_WRITEABLE }, - { name: "rootfs", size: 0, offset: 0}, - { name: "jffs2", size: 5 * 0x10000, offset: 57*0x10000} + { 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: "OpenWrt", offset: 0, size: 0, }, + { name: NULL, }, }; -static int bcm963xx_parts_size = sizeof(bcm963xx_parts) / sizeof(bcm963xx_parts[0]); +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; -static int bcm963xx_detect_cfe(struct mtd_info *master) + 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) { - int idoffset = 0x4e0; - static char idstring[8] = "CFE1CFE1"; - char buf[8]; - int ret; - size_t retlen; - - ret = master->read(master, idoffset, 8, &retlen, (void *)buf); - printk("bcm963xx: Read Signature value of %s\n", buf); - return strcmp(idstring,buf); + wait_queue_head_t *wait_q = (wait_queue_head_t *)done->priv; + wake_up(wait_q); } -static int __init bcm963xx_mtd_init(void) +static int erase_write (struct mtd_info *mtd, unsigned long pos, + int len, const char *buf) { - printk("bcm963xx: 0x%08x at 0x%08x\n", WINDOW_SIZE, WINDOW_ADDR); - bcm963xx_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE); - - if (!bcm963xx_map.virt) { - printk("bcm963xx: Failed to ioremap\n"); - return -EIO; - } - - simple_map_init(&bcm963xx_map); - - bcm963xx_mtd_info = do_map_probe("cfi_probe", &bcm963xx_map); - - if (bcm963xx_mtd_info) { - bcm963xx_mtd_info->owner = THIS_MODULE; - - //if (boot_loader_type == BOOT_CFE) - if (bcm963xx_detect_cfe(bcm963xx_mtd_info) == 0) - { - int parsed_nr_parts = 0; - char * part_type; - printk("bcm963xx: CFE bootloader detected\n"); - //add_mtd_device(bcm963xx_mtd_info); - //add_mtd_partitions(bcm963xx_mtd_info, bcm963xx_parts, bcm963xx_parts_size); - if (parsed_nr_parts == 0) { - int ret = parse_cfe_partitions(bcm963xx_mtd_info, &parsed_parts); - if (ret > 0) { - part_type = "CFE"; - parsed_nr_parts = ret; - } - } - add_mtd_partitions(bcm963xx_mtd_info, parsed_parts, parsed_nr_parts); - return 0; - } - else - { - int parsed_nr_parts = 0; - char * part_type; - - if (bcm963xx_mtd_info->size > 0x00400000) { - printk("Support for extended flash memory size : 0x%08X ; ONLY 64MBIT SUPPORT\n", bcm963xx_mtd_info->size); - bcm963xx_map.virt = (unsigned long)(EXTENDED_SIZE); - } + 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; + + if (*((__u32 *) buf) == SQUASHFS_MAGIC) { + printk(KERN_INFO "%s: Filesystem type: squashfs, size=0x%x\n", mtd->name, (u32) sb->bytes_used); + + /* Update the squashfs partition size based on the superblock info */ + part->size = sb->bytes_used; + len = part->offset + part->size; + len += (mtd->erasesize - 1); + len &= ~(mtd->erasesize - 1); + part->size = len - part->offset; + } else if (*((__u16 *) buf) == JFFS2_MAGIC_BITMASK) { + printk(KERN_INFO "%s: Filesystem type: jffs2\n", mtd->name); + + /* Move the squashfs outside of the trx */ + part->size = 0; + } else { + printk(KERN_INFO "%s: Filesystem type: unknown\n", mtd->name); + return 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 */ + bcm963xx_parts[0].offset = 0; + bcm963xx_parts[0].size = cfe_size; + + /* nvram */ + if (cfe_size != 384 * 1024) { + bcm963xx_parts[3].offset = size - ROUNDUP(NVRAM_SPACE, mtd->erasesize); + bcm963xx_parts[3].size = ROUNDUP(NVRAM_SPACE, mtd->erasesize); + } else { + /* nvram (old 128kb config partition on netgear wgt634u) */ + bcm963xx_parts[3].offset = bcm963xx_parts[0].size; + bcm963xx_parts[3].size = ROUNDUP(NVRAM_SPACE, mtd->erasesize); + } + + /* linux (kernel and rootfs) */ + if (cfe_size != 384 * 1024) { + bcm963xx_parts[1].offset = bcm963xx_parts[0].size; + bcm963xx_parts[1].size = bcm963xx_parts[3].offset - + bcm963xx_parts[1].offset; + } else { + /* do not count the elf loader, which is on one block */ + bcm963xx_parts[1].offset = bcm963xx_parts[0].size + + bcm963xx_parts[3].size + mtd->erasesize; + bcm963xx_parts[1].size = size - + bcm963xx_parts[0].size - + (2*bcm963xx_parts[3].size) - + mtd->erasesize; + } + + /* find and size rootfs */ + if (find_root(mtd,size,&bcm963xx_parts[2])==0) { + /* entirely jffs2 */ + bcm963xx_parts[4].name = NULL; + bcm963xx_parts[2].size = size - bcm963xx_parts[2].offset - + bcm963xx_parts[3].size; + } else { + /* legacy setup */ + /* calculate leftover flash, and assign it to the jffs2 partition */ + if (cfe_size != 384 * 1024) { + bcm963xx_parts[4].offset = bcm963xx_parts[2].offset + + bcm963xx_parts[2].size; + if ((bcm963xx_parts[4].offset % mtd->erasesize) > 0) { + bcm963xx_parts[4].offset += mtd->erasesize - + (bcm963xx_parts[4].offset % mtd->erasesize); + } + bcm963xx_parts[4].size = bcm963xx_parts[3].offset - + bcm963xx_parts[4].offset; + } else { + bcm963xx_parts[4].offset = bcm963xx_parts[2].offset + + bcm963xx_parts[2].size; + if ((bcm963xx_parts[4].offset % mtd->erasesize) > 0) { + bcm963xx_parts[4].offset += mtd->erasesize - + (bcm963xx_parts[4].offset % mtd->erasesize); + } + bcm963xx_parts[4].size = size - bcm963xx_parts[3].size - + bcm963xx_parts[4].offset; + } + } + + return bcm963xx_parts; +} +#endif + +int __init init_bcm963xx_map(void) +{ + size_t size; + int ret = 0; +#ifdef CONFIG_MTD_PARTITIONS + struct mtd_partition *parts; + int i; +#endif + + printk("BCM963xx flash init: 0x%08x 0x%08x\n", WINDOW_ADDR, WINDOW_SIZE); + bcm963xx_map.virt = ioremap_nocache(WINDOW_ADDR, WINDOW_SIZE); + + if (!bcm963xx_map.virt) { + printk("Failed to ioremap\n"); + return -EIO; + } + simple_map_init(&bcm963xx_map); + + if (!(bcm963xx_mtd = do_map_probe("cfi_probe", &bcm963xx_map))) { + printk("Failed to do_map_probe\n"); + iounmap((void *)bcm963xx_map.virt); + return -ENXIO; + } + + bcm963xx_mtd->owner = THIS_MODULE; + + size = bcm963xx_mtd->size; + + printk(KERN_NOTICE "Flash device: 0x%x at 0x%x\n", size, WINDOW_ADDR); + +#ifdef CONFIG_MTD_PARTITIONS + if (boot_loader_type == BOOT_LOADER_CFE) { + parts = init_mtd_partitions(bcm963xx_mtd, size); + for (i = 0; parts[i].name; i++); + ret = add_mtd_partitions(bcm963xx_mtd, parts, i); + if (ret) { + printk(KERN_ERR "Flash: add_mtd_partitions failed\n"); + goto fail; + } + } + else { + int parsed_nr_parts = 0; + char * part_type; + + if (bcm963xx_mtd->size > 0x00400000) { + printk("Support for extended flash memory size : 0x%08X ; ONLY 64MBIT SUPPORT\n", bcm963xx_mtd->size); + bcm963xx_map.virt = (unsigned long)EXTENDED_SIZE; + } #ifdef CONFIG_MTD_REDBOOT_PARTS - if (parsed_nr_parts == 0) { - int ret = parse_redboot_partitions(bcm963xx_mtd_info, &parsed_parts, 0); - if (ret > 0) { - part_type = "RedBoot"; - parsed_nr_parts = ret; - } - } + if (parsed_nr_parts == 0) { + int ret = parse_redboot_partitions(bcm963xx_mtd, &parsed_parts, 0); + if (ret > 0) { + part_type = "RedBoot"; + parsed_nr_parts = ret; + } + } +#endif + add_mtd_partitions(bcm963xx_mtd, parsed_parts, parsed_nr_parts); #endif - add_mtd_partitions(bcm963xx_mtd_info, parsed_parts, parsed_nr_parts); + } + return 0; - return 0; - } - } - iounmap(bcm963xx_map.virt); - return -ENXIO; + fail: + if (bcm963xx_mtd) + map_destroy(bcm963xx_mtd); + if (bcm963xx_map.virt) + iounmap((void *)bcm963xx_map.virt); + bcm963xx_map.virt = 0; + return ret; } -static void __exit bcm963xx_mtd_cleanup(void) +void __exit cleanup_bcm963xx_map(void) { - if (bcm963xx_mtd_info) { - del_mtd_partitions(bcm963xx_mtd_info); - map_destroy(bcm963xx_mtd_info); - } - - if (bcm963xx_map.virt) { - iounmap(bcm963xx_map.virt); - bcm963xx_map.virt = 0; - } +#ifdef CONFIG_MTD_PARTITIONS + del_mtd_partitions(bcm963xx_mtd); +#endif + map_destroy(bcm963xx_mtd); + iounmap((void *)bcm963xx_map.virt); } -module_init(bcm963xx_mtd_init); -module_exit(bcm963xx_mtd_cleanup); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org> Mike Albon <malbon@openwrt.org>"); +module_init(init_bcm963xx_map); +module_exit(cleanup_bcm963xx_map); |