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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.patch147
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 0000000..e5f803a
--- /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