diff options
Diffstat (limited to 'target')
3 files changed, 227 insertions, 231 deletions
diff --git a/target/linux/brcm63xx/files/arch/mips/bcm63xx/boards/board_bcm963xx.c b/target/linux/brcm63xx/files/arch/mips/bcm63xx/boards/board_bcm963xx.c index 1c3073e..5623d79 100644 --- a/target/linux/brcm63xx/files/arch/mips/bcm63xx/boards/board_bcm963xx.c +++ b/target/linux/brcm63xx/files/arch/mips/bcm63xx/boards/board_bcm963xx.c @@ -312,20 +312,6 @@ static int board_get_mac_address(u8 *mac) return 0; } -static struct mtd_partition mtd_partitions[] = { - { - .name = "cfe", - .offset = 0x0, - .size = 0x40000, - } -}; - -static struct physmap_flash_data flash_data = { - .width = 2, - .nr_parts = ARRAY_SIZE(mtd_partitions), - .parts = mtd_partitions, -}; - static struct resource mtd_resources[] = { { .start = 0, /* filled at runtime */ @@ -335,12 +321,9 @@ static struct resource mtd_resources[] = { }; static struct platform_device mtd_dev = { - .name = "physmap-flash", + .name = "bcm963xx-flash", .resource = mtd_resources, .num_resources = ARRAY_SIZE(mtd_resources), - .dev = { - .platform_data = &flash_data, - }, }; /* diff --git a/target/linux/brcm63xx/files/drivers/mtd/maps/bcm963xx-flash.c b/target/linux/brcm63xx/files/drivers/mtd/maps/bcm963xx-flash.c index dc1508b..0d5bd84 100644 --- a/target/linux/brcm63xx/files/drivers/mtd/maps/bcm963xx-flash.c +++ b/target/linux/brcm63xx/files/drivers/mtd/maps/bcm963xx-flash.c @@ -1,8 +1,6 @@ /* - * $Id$ - * Copyright (C) 2006 Florian Fainelli <florian@openwrt.org> - * Mike Albon <malbon@openwrt.org> - * Copyright (C) $Date$ $Author$ + * Copyright (C) 2006-2008 Florian Fainelli <florian@openwrt.org> + * Mike Albon <malbon@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 @@ -19,252 +17,237 @@ * 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 - * - * CFE : - * - CFE partitionning can be detected as for BCM947xx devices - * - */ - #include <linux/init.h> #include <linux/kernel.h> #include <linux/mtd/map.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> #include <linux/vmalloc.h> +#include <linux/platform_device.h> +#include <bcm_tag.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)) -extern int boot_loader_type; /* For RedBoot / CFE detection */ +#define PFX KBUILD_MODNAME ": " + 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; static struct map_info bcm963xx_map = { - .name = "bcm963xx", - .size = WINDOW_SIZE, - .bankwidth = BUSWIDTH, - .phys = WINDOW_ADDR, + .name = "bcm963xx", + .bankwidth = BUSWIDTH, }; - -int parse_cfe_partitions( struct mtd_info *master, struct mtd_partition **pparts) +static 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; - }; - // 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; - if (sparelen > 0) - 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; -}; - -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} + int nrparts = 2, curpart = 0; /* CFE and NVRAM are always present. */ + struct bcm_tag *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 bcm_tag)); + if (!buf) + return -ENOMEM; + + /* Get the tag */ + ret = master->read(master,master->erasesize,sizeof(struct bcm_tag), &retlen, (void *)buf); + if (retlen != sizeof(struct bcm_tag)){ + vfree(buf); + return -EIO; + } + printk(KERN_INFO PFX "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; + }; + + /* Ask kernel for more memory */ + parts = kzalloc(sizeof(*parts) * nrparts + 10 * nrparts, GFP_KERNEL); + if (!parts) { + vfree(buf); + return -ENOMEM; + }; + + /* 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; + if (sparelen > 0) + 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(KERN_INFO PFX "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; }; -static int bcm963xx_parts_size = sizeof(bcm963xx_parts) / sizeof(bcm963xx_parts[0]); - static int bcm963xx_detect_cfe(struct mtd_info *master) { - int idoffset = 0x4e0; - static char idstring[8] = "CFE1CFE1"; - char buf[9]; - int ret; - size_t retlen; - - ret = master->read(master, idoffset, 8, &retlen, (void *)buf); - buf[retlen] = 0; - printk("bcm963xx: Read Signature value of %s\n", buf); - return strncmp(idstring, buf, 8); + int idoffset = 0x4e0; + static char idstring[8] = "CFE1CFE1"; + char buf[9]; + int ret; + size_t retlen; + + ret = master->read(master, idoffset, 8, &retlen, (void *)buf); + buf[retlen] = 0; + printk(KERN_INFO PFX "Read Signature value of %s\n", buf); + + return strncmp(idstring, buf, 8); } -static int __init bcm963xx_mtd_init(void) +static int bcm963xx_probe(struct platform_device *pdev) { - 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); - } + int err = 0; + int parsed_nr_parts = 0; + char *part_type; + struct resource *r; + + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + bcm963xx_map.phys = r->start; + bcm963xx_map.size = (r->end - r->start); + bcm963xx_map.virt = ioremap(r->start, r->end - r->start); + + if (!bcm963xx_map.virt) { + printk(KERN_ERR PFX "Failed to ioremap\n"); + return -EIO; + } + printk(KERN_INFO PFX "0x%08x at 0x%08x\n", r->end - r->start, r->start); + + simple_map_init(&bcm963xx_map); + + bcm963xx_mtd_info = do_map_probe("cfi_probe", &bcm963xx_map); + if (!bcm963xx_mtd_info) { + printk(KERN_ERR PFX "Failed to probe using CFI\n"); + err = -EIO; + goto err_probe; + } + + bcm963xx_mtd_info->owner = THIS_MODULE; + + /* This is mutually exclusive */ + if (bcm963xx_detect_cfe(bcm963xx_mtd_info) == 0) { + printk(KERN_INFO PFX "CFE bootloader detected\n"); + 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; + } + } + } else { + printk(KERN_INFO PFX "assuming RedBoot bootloader\n"); + if (bcm963xx_mtd_info->size > 0x00400000) { + printk(KERN_INFO PFX "Support for extended flash memory size : 0x%08X ; ONLY 64MBIT SUPPORT\n", bcm963xx_mtd_info->size); + bcm963xx_map.virt = (u32)(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_info, &parsed_parts, 0); + if (ret > 0) { + part_type = "RedBoot"; + parsed_nr_parts = ret; + } + } #endif - add_mtd_partitions(bcm963xx_mtd_info, parsed_parts, parsed_nr_parts); + } + + return add_mtd_partitions(bcm963xx_mtd_info, parsed_parts, parsed_nr_parts); - return 0; - } - } - iounmap(bcm963xx_map.virt); - return -ENXIO; +err_probe: + iounmap(bcm963xx_map.virt); + return err; +} + +static int bcm963xx_remove(struct platform_device *pdev) +{ + 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; + } + + return 0; +} + +static struct platform_driver bcm63xx_mtd_dev = { + .probe = bcm963xx_probe, + .remove = bcm963xx_remove, + .driver = { + .name = "bcm963xx-flash", + .owner = THIS_MODULE, + }, +}; + +static int __init bcm963xx_mtd_init(void) +{ + return platform_driver_register(&bcm63xx_mtd_dev); } -static void __exit bcm963xx_mtd_cleanup(void) +static void __exit bcm963xx_mtd_exit(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; - } + platform_driver_unregister(&bcm63xx_mtd_dev); } module_init(bcm963xx_mtd_init); -module_exit(bcm963xx_mtd_cleanup); +module_exit(bcm963xx_mtd_exit); MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org> Mike Albon <malbon@openwrt.org>"); +MODULE_DESCRIPTION("Broadcom BCM63xx MTD partition parser/mapping for CFE and RedBoot"); +MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>"); +MODULE_AUTHOR("Mike Albon <malbon@openwrt.org>"); diff --git a/target/linux/brcm63xx/files/include/asm-mips/mach-bcm63xx/bcm_tag.h b/target/linux/brcm63xx/files/include/asm-mips/mach-bcm63xx/bcm_tag.h new file mode 100644 index 0000000..efc4f02 --- /dev/null +++ b/target/linux/brcm63xx/files/include/asm-mips/mach-bcm63xx/bcm_tag.h @@ -0,0 +1,30 @@ +#ifndef __BCM63XX_TAG_H +#define __BCM63XX_TAG_H + +#define IMAGE_LEN 10 /* Length of Length Field */ +#define ADDRESS_LEN 12 /* Length of Address field */ + +struct bcm_tag { + 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 big_endian[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 +}; + +#endif /* __BCM63XX_TAG_H */ |