diff options
| -rw-r--r-- | target/linux/brcm63xx-2.6/files/drivers/mtd/maps/bcm963xx-flash.c | 669 |
1 files changed, 236 insertions, 433 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 c7013cc97..c4c4526b4 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 @@ -1,474 +1,277 @@ /* - * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org> - * Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org> - * Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org) + * $Id$ + * Copyright (C) 2006 Florian Fainelli <florian@openwrt.org> + * Mike Albon <malbon@openwrt.org> + * Copyright (C) $Date$ $Author$ * - * 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 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 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 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., 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 * - * 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. + * CFE : + * - CFE partitionning can be detected as for BCM947xx devices * - * 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/wait.h> -#include <linux/mtd/mtd.h> #include <linux/mtd/map.h> -#ifdef CONFIG_MTD_PARTITIONS +#include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> -#endif -#include <linux/squashfs_fs.h> -#include <linux/jffs2.h> -#include <linux/crc32.h> -#include <asm/io.h> +#include <linux/vmalloc.h> +#include <board.h> -#include <asm/mach-bcm963xx/bootloaders.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)) -extern int boot_loader_type; +extern int boot_loader_type; /* For RedBoot / CFE detection */ 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); -#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 mtd_info *bcm963xx_mtd_info; -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 */ +static struct map_info bcm963xx_map = { + .name = "bcm963xx", + .size = WINDOW_SIZE, + .bankwidth = BUSWIDTH, + .phys = WINDOW_ADDR, }; -#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y)) -#define NVRAM_SPACE 0x8000 -#define WINDOW_ADDR 0x1FC00000 -#define WINDOW_SIZE 0x400000 -#define BUSWIDTH 2 - -#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, +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; }; -#ifdef CONFIG_MTD_PARTITIONS - static struct mtd_partition bcm963xx_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: "OpenWrt", offset: 0, size: 0, }, - { name: NULL, }, + { name: "bootloader", size: 0, offset: 0, mask_flags: MTD_WRITEABLE }, + { name: "rootfs", size: 0, offset: 0}, + { name: "jffs2", size: 5 * 0x10000, offset: 57*0x10000} }; -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_parts_size = sizeof(bcm963xx_parts) / sizeof(bcm963xx_parts[0]); - 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) +static int bcm963xx_detect_cfe(struct mtd_info *master) { - wait_queue_head_t *wait_q = (wait_queue_head_t *)done->priv; - wake_up(wait_q); + 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); } -static int erase_write (struct mtd_info *mtd, unsigned long pos, - int len, const char *buf) +static int __init bcm963xx_mtd_init(void) { - 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; - } + 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); + } #ifdef CONFIG_MTD_REDBOOT_PARTS - 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); + 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; + } + } #endif - } - return 0; + add_mtd_partitions(bcm963xx_mtd_info, parsed_parts, parsed_nr_parts); - fail: - if (bcm963xx_mtd) - map_destroy(bcm963xx_mtd); - if (bcm963xx_map.virt) - iounmap((void *)bcm963xx_map.virt); - bcm963xx_map.virt = 0; - return ret; + return 0; + } + } + iounmap(bcm963xx_map.virt); + return -ENXIO; } -void __exit cleanup_bcm963xx_map(void) +static void __exit bcm963xx_mtd_cleanup(void) { -#ifdef CONFIG_MTD_PARTITIONS - del_mtd_partitions(bcm963xx_mtd); -#endif - map_destroy(bcm963xx_mtd); - iounmap((void *)bcm963xx_map.virt); + 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; + } } -module_init(init_bcm963xx_map); -module_exit(cleanup_bcm963xx_map); +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>"); |