diff options
Diffstat (limited to 'target/linux/magicbox-2.6/patches/002-flash_map.patch')
| -rw-r--r-- | target/linux/magicbox-2.6/patches/002-flash_map.patch | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/target/linux/magicbox-2.6/patches/002-flash_map.patch b/target/linux/magicbox-2.6/patches/002-flash_map.patch new file mode 100644 index 0000000000..e5f803a144 --- /dev/null +++ b/target/linux/magicbox-2.6/patches/002-flash_map.patch @@ -0,0 +1,147 @@ +diff -urN linux.old/drivers/mtd/maps/Kconfig linux.dev/drivers/mtd/maps/Kconfig +--- linux.old/drivers/mtd/maps/Kconfig 2006-08-30 06:30:59.000000000 +0200 ++++ linux.dev/drivers/mtd/maps/Kconfig 2006-08-30 06:11:51.000000000 +0200 +@@ -323,6 +323,15 @@ + Walnut board. If you have one of these boards and would like to + use the flash chips on it, say 'Y'. + ++config MTD_MAGICMAP ++ tristate "Flash device mapped on IBM 405EP MagicBox" ++ depends on MTD_CFI && MTD_PARTITIONS && 40x && MAGICBOX ++ help ++ This enables access routines for the flash chips on the IBM 405EP ++ MagicBox board. If you have one of these boards and would like to ++ use the flash chips on it, say 'Y'. ++ ++ + config MTD_EBONY + tristate "Flash devices mapped on IBM 440GP Ebony" + depends on MTD_JEDECPROBE && EBONY +diff -urN linux.old/drivers/mtd/maps/magicmap.c linux.dev/drivers/mtd/maps/magicmap.c +--- linux.old/drivers/mtd/maps/magicmap.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux.dev/drivers/mtd/maps/magicmap.c 2006-08-30 06:52:34.000000000 +0200 +@@ -0,0 +1,113 @@ ++/* ++ * magicmap.c: Copyleft 2005 Karol Lewandowski ++ * ++ * Mapping for MagicBox flash. ++ * Based on walnut.c. ++ * ++ * Heikki Lindholm <holindho@infradead.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/module.h> ++#include <linux/types.h> ++#include <linux/kernel.h> ++#include <linux/init.h> ++#include <linux/mtd/mtd.h> ++#include <linux/mtd/map.h> ++#include <linux/mtd/partitions.h> ++#include <linux/config.h> ++#include <asm/io.h> ++ ++static struct mtd_info *flash; ++ ++static struct map_info magic_map = { ++ .name = "Magically mapped flash", ++ .phys = 0xffc00000, ++ .size = 0x400000, ++ .bankwidth = 2, ++}; ++ ++static struct mtd_partition magic_partitions[] = { ++ { ++ .name = "linux", ++ .offset = 0x0, ++ .size = 0x3c0000, ++ }, ++ { ++ .name = "rootfs", ++ .offset = 0x100000, ++ .size = 0x2c0000, ++ }, ++ { ++ .name = "bootloader", ++ .offset = 0x3c0000, ++ .size = 0x040000, ++ .mask_flags = MTD_WRITEABLE, ++ }, ++}; ++ ++int __init init_magic(void) ++{ ++ u32 size, len; ++ ++ magic_map.virt = ++ (void __iomem *)ioremap(magic_map.phys, magic_map.size); ++ ++ if (!magic_map.virt) { ++ printk("Failed to ioremap flash.\n"); ++ return -EIO; ++ } ++ ++ simple_map_init(&magic_map); ++ ++ flash = do_map_probe("cfi_probe", &magic_map); ++ if (flash) { ++ flash->owner = THIS_MODULE; ++ if (MTD_READ(flash, 12, sizeof(u32), &len, (char *) &size) || ++ len != 4) ++ return -ENXIO; ++ size += 0x40; /* header size of the uImage */ ++ if (size < 0x400000) { ++ /* skip to next erase block */ ++ if (size & (flash->erasesize - 1)) { ++ size |= (flash->erasesize - 1); ++ size += 1; ++ } ++ magic_partitions[1].offset = size; ++ magic_partitions[1].size = magic_partitions[2].offset - size; ++ } ++ ++ add_mtd_partitions(flash, magic_partitions, ++ ARRAY_SIZE(magic_partitions)); ++ } else { ++ printk("map probe failed for flash\n"); ++ return -ENXIO; ++ } ++ ++ return 0; ++} ++ ++static void __exit cleanup_magic(void) ++{ ++ if (flash) { ++ del_mtd_partitions(flash); ++ map_destroy(flash); ++ } ++ ++ if (magic_map.virt) { ++ iounmap((void *)magic_map.virt); ++ magic_map.virt = NULL; ++ } ++} ++ ++module_init(init_magic); ++module_exit(cleanup_magic); ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Karol Lewandowski"); ++MODULE_DESCRIPTION("MTD map and partitions for IBM 405EP MagicBox boards"); +diff -urN linux.old/drivers/mtd/maps/Makefile linux.dev/drivers/mtd/maps/Makefile +--- linux.old/drivers/mtd/maps/Makefile 2006-08-30 06:30:59.000000000 +0200 ++++ linux.dev/drivers/mtd/maps/Makefile 2006-08-30 06:11:51.000000000 +0200 +@@ -58,6 +58,7 @@ + obj-$(CONFIG_MTD_BEECH) += beech-mtd.o + obj-$(CONFIG_MTD_ARCTIC) += arctic-mtd.o + obj-$(CONFIG_MTD_WALNUT) += walnut.o ++obj-$(CONFIG_MTD_MAGICMAP) += magicmap.o + obj-$(CONFIG_MTD_H720X) += h720x-flash.o + obj-$(CONFIG_MTD_SBC8240) += sbc8240.o + obj-$(CONFIG_MTD_NOR_TOTO) += omap-toto-flash.o |