diff options
3 files changed, 89 insertions, 43 deletions
diff --git a/target/linux/ifxmips/files/arch/mips/ifxmips/board.c b/target/linux/ifxmips/files/arch/mips/ifxmips/board.c index 05a0715..f048321 100644 --- a/target/linux/ifxmips/files/arch/mips/ifxmips/board.c +++ b/target/linux/ifxmips/files/arch/mips/ifxmips/board.c @@ -71,6 +71,29 @@ static struct platform_device ifxmips_mii[] = .name = "ifxmips_mii0", }, }; + +static struct physmap_flash_data ifxmips_mtd_data = { + .width = 2, +}; + +static struct resource ifxmips_mtd_resource = { + .start = IFXMIPS_FLASH_START, + .end = IFXMIPS_FLASH_START + IFXMIPS_FLASH_MAX - 1, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device ifxmips_mtd[] = +{ + { + .id = 0, + .name = "ifxmips_mtd", + .dev = { + .platform_data = &ifxmips_mtd_data, + }, + .num_resources = 1, + .resource = &ifxmips_mtd_resource, + }, +}; const char* get_system_type (void) @@ -102,6 +125,7 @@ int __init ifxmips_init_devices(void) ifxmips_devs[dev++] = ifxmips_led; ifxmips_devs[dev++] = ifxmips_gpio; ifxmips_devs[dev++] = ifxmips_mii; + ifxmips_devs[dev++] = ifxmips_mtd; return platform_add_devices(ifxmips_devs, dev); } diff --git a/target/linux/ifxmips/files/drivers/mtd/maps/ifxmips.c b/target/linux/ifxmips/files/drivers/mtd/maps/ifxmips.c index 06091ac..3dd41d1 100644 --- a/target/linux/ifxmips/files/drivers/mtd/maps/ifxmips.c +++ b/target/linux/ifxmips/files/drivers/mtd/maps/ifxmips.c @@ -23,7 +23,6 @@ #include <linux/types.h> #include <linux/kernel.h> #include <asm/io.h> - #include <linux/init.h> #include <linux/mtd/mtd.h> #include <linux/mtd/map.h> @@ -31,16 +30,19 @@ #include <linux/mtd/cfi.h> #include <asm/ifxmips/ifxmips.h> #include <linux/magic.h> +#include <linux/platform_device.h> + +#define DRVNAME "ifxmips_mtd" static struct map_info -danube_map = { - .name = "IFXMIPS_FLASH", +ifxmips_map = { + .name = DRVNAME, .bankwidth = 2, .size = 0x400000, }; static map_word -danube_read16 (struct map_info * map, unsigned long adr) +ifxmips_read16 (struct map_info * map, unsigned long adr) { map_word temp; @@ -51,14 +53,14 @@ danube_read16 (struct map_info * map, unsigned long adr) } static void -danube_write16 (struct map_info *map, map_word d, unsigned long adr) +ifxmips_write16 (struct map_info *map, map_word d, unsigned long adr) { adr ^= 2; *((__u16 *) (map->virt + adr)) = d.x[0]; } void -danube_copy_from (struct map_info *map, void *to, unsigned long from, ssize_t len) +ifxmips_copy_from (struct map_info *map, void *to, unsigned long from, ssize_t len) { u8 *p; u8 *to_8; @@ -72,7 +74,7 @@ danube_copy_from (struct map_info *map, void *to, unsigned long from, ssize_t le } void -danube_copy_to (struct map_info *map, unsigned long to, const void *from, ssize_t len) +ifxmips_copy_to (struct map_info *map, unsigned long to, const void *from, ssize_t len) { u8 *p = (u8*) from; u8 *to_8; @@ -85,7 +87,7 @@ danube_copy_to (struct map_info *map, unsigned long to, const void *from, ssize_ } static struct mtd_partition -danube_partitions[4] = { +ifxmips_partitions[4] = { { name:"U-Boot", offset:0x00000000, @@ -108,15 +110,12 @@ danube_partitions[4] = { }, }; -#define IFXMIPS_FLASH_START 0x10000000 -#define IFXMIPS_FLASH_MAX 0x2000000 - int find_uImage_size (unsigned long start_offset){ unsigned long temp; - danube_copy_from(&danube_map, &temp, start_offset + 12, 4); - printk("kernel size is %ld \n", temp + 0x40); + ifxmips_copy_from(&ifxmips_map, &temp, start_offset + 12, 4); + printk(KERN_INFO DRVNAME ": kernel size is %ld \n", temp + 0x40); return temp + 0x40; } @@ -124,70 +123,90 @@ int detect_squashfs_partition (unsigned long start_offset){ unsigned long temp; - danube_copy_from(&danube_map, &temp, start_offset, 4); + ifxmips_copy_from(&ifxmips_map, &temp, start_offset, 4); return (temp == SQUASHFS_MAGIC); } -int __init -init_danube_mtd (void) +static int +ifxmips_mtd_probe (void) { - struct mtd_info *danube_mtd = NULL; + struct mtd_info *ifxmips_mtd = NULL; struct mtd_partition *parts = NULL; unsigned long uimage_size; writel(0x1d7ff, IFXMIPS_EBU_BUSCON0); - danube_map.read = danube_read16; - danube_map.write = danube_write16; - danube_map.copy_from = danube_copy_from; - danube_map.copy_to = danube_copy_to; + ifxmips_map.read = ifxmips_read16; + ifxmips_map.write = ifxmips_write16; + ifxmips_map.copy_from = ifxmips_copy_from; + ifxmips_map.copy_to = ifxmips_copy_to; - danube_map.phys = IFXMIPS_FLASH_START; - danube_map.virt = ioremap_nocache(IFXMIPS_FLASH_START, IFXMIPS_FLASH_MAX); - danube_map.size = IFXMIPS_FLASH_MAX; - if (!danube_map.virt) { - printk(KERN_WARNING "Failed to ioremap!\n"); + ifxmips_map.phys = IFXMIPS_FLASH_START; + ifxmips_map.virt = ioremap_nocache(IFXMIPS_FLASH_START, IFXMIPS_FLASH_MAX); + ifxmips_map.size = IFXMIPS_FLASH_MAX; + if (!ifxmips_map.virt) { + printk(KERN_WARNING DRVNAME ": failed to ioremap!\n"); return -EIO; } - danube_mtd = (struct mtd_info *) do_map_probe("cfi_probe", &danube_map); - if (!danube_mtd) { - iounmap(danube_map.virt); - printk("probing failed\n"); + ifxmips_mtd = (struct mtd_info *) do_map_probe("cfi_probe", &ifxmips_map); + if (!ifxmips_mtd) { + iounmap(ifxmips_map.virt); + printk(KERN_WARNING DRVNAME ": probing failed\n"); return -ENXIO; } - danube_mtd->owner = THIS_MODULE; + ifxmips_mtd->owner = THIS_MODULE; - uimage_size = find_uImage_size(danube_partitions[2].offset); + uimage_size = find_uImage_size(ifxmips_partitions[2].offset); - if(detect_squashfs_partition(danube_partitions[2].offset + uimage_size)){ - printk("Found a squashfs following the uImage\n"); + if(detect_squashfs_partition(ifxmips_partitions[2].offset + uimage_size)){ + printk(KERN_INFO DRVNAME ": found a squashfs following the uImage\n"); } else { uimage_size &= ~0xffff; uimage_size += 0x10000; } - danube_partitions[2].size = uimage_size; - danube_partitions[3].offset = danube_partitions[2].offset + danube_partitions[2].size; - danube_partitions[3].size = ((danube_mtd->size >> 20) * 1024 * 1024) - danube_partitions[3].offset; + ifxmips_partitions[2].size = uimage_size; + ifxmips_partitions[3].offset = ifxmips_partitions[2].offset + ifxmips_partitions[2].size; + ifxmips_partitions[3].size = ((ifxmips_mtd->size >> 20) * 1024 * 1024) - ifxmips_partitions[3].offset; - parts = &danube_partitions[0]; - add_mtd_partitions(danube_mtd, parts, 4); + parts = &ifxmips_partitions[0]; + add_mtd_partitions(ifxmips_mtd, parts, 4); - printk("Added danube flash with %dMB\n", danube_mtd->size >> 20); + printk(KERN_INFO DRVNAME ": added ifxmips flash with %dMB\n", ifxmips_mtd->size >> 20); return 0; } +static struct +platform_driver ifxmips_mtd_driver = { + .probe = ifxmips_mtd_probe, + .driver = { + .name = DRVNAME, + .owner = THIS_MODULE, + }, +}; + +int __init +init_ifxmips_mtd (void) +{ + int ret = platform_driver_register(&ifxmips_mtd_driver); + if (ret) + printk(KERN_INFO DRVNAME ": error registering platfom driver!"); + + return ret; +} + static void __exit -cleanup_danube_mtd (void) +cleanup_ifxmips_mtd (void) { + platform_driver_unregister(&ifxmips_mtd_driver); } -module_init (init_danube_mtd); -module_exit (cleanup_danube_mtd); +module_init (init_ifxmips_mtd); +module_exit (cleanup_ifxmips_mtd); MODULE_LICENSE ("GPL"); MODULE_AUTHOR ("John Crispin <blogic@openwrt.org>"); diff --git a/target/linux/ifxmips/files/include/asm-mips/ifxmips/ifxmips.h b/target/linux/ifxmips/files/include/asm-mips/ifxmips/ifxmips.h index cedab2c..3575596 100644 --- a/target/linux/ifxmips/files/include/asm-mips/ifxmips/ifxmips.h +++ b/target/linux/ifxmips/files/include/asm-mips/ifxmips/ifxmips.h @@ -30,6 +30,9 @@ #define IOMEM_RESOURCE_START 0x10000000 #define IOMEM_RESOURCE_END 0xffffffff +#define IFXMIPS_FLASH_START 0x10000000 +#define IFXMIPS_FLASH_MAX 0x2000000 + /*------------ ASC1 */ |