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148 lines
4.1 KiB
Diff
148 lines
4.1 KiB
Diff
diff -urN linux.old/drivers/mtd/maps/Kconfig linux.dev/drivers/mtd/maps/Kconfig
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--- linux.old/drivers/mtd/maps/Kconfig 2006-08-30 06:30:59.000000000 +0200
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+++ linux.dev/drivers/mtd/maps/Kconfig 2006-08-30 06:11:51.000000000 +0200
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@@ -323,6 +323,15 @@
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Walnut board. If you have one of these boards and would like to
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use the flash chips on it, say 'Y'.
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+config MTD_MAGICMAP
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+ tristate "Flash device mapped on IBM 405EP MagicBox"
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+ depends on MTD_CFI && MTD_PARTITIONS && 40x && MAGICBOX
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+ help
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+ This enables access routines for the flash chips on the IBM 405EP
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+ MagicBox board. If you have one of these boards and would like to
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+ use the flash chips on it, say 'Y'.
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+
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+
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config MTD_EBONY
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tristate "Flash devices mapped on IBM 440GP Ebony"
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depends on MTD_JEDECPROBE && EBONY
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diff -urN linux.old/drivers/mtd/maps/magicmap.c linux.dev/drivers/mtd/maps/magicmap.c
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--- linux.old/drivers/mtd/maps/magicmap.c 1970-01-01 01:00:00.000000000 +0100
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+++ linux.dev/drivers/mtd/maps/magicmap.c 2006-08-30 06:52:34.000000000 +0200
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@@ -0,0 +1,113 @@
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+/*
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+ * magicmap.c: Copyleft 2005 Karol Lewandowski
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+ *
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+ * Mapping for MagicBox flash.
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+ * Based on walnut.c.
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+ *
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+ * Heikki Lindholm <holindho@infradead.org>
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+ *
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+ *
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+ * This program is free software; you can redistribute it and/or modify it
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+ * under the terms of the GNU General Public License as published by the
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+ * Free Software Foundation; either version 2 of the License, or (at your
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+ * option) any later version.
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+ */
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+
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+#include <linux/module.h>
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+#include <linux/types.h>
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+#include <linux/kernel.h>
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+#include <linux/init.h>
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+#include <linux/mtd/mtd.h>
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+#include <linux/mtd/map.h>
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+#include <linux/mtd/partitions.h>
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+#include <linux/config.h>
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+#include <asm/io.h>
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+
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+static struct mtd_info *flash;
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+
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+static struct map_info magic_map = {
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+ .name = "Magically mapped flash",
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+ .phys = 0xffc00000,
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+ .size = 0x400000,
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+ .bankwidth = 2,
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+};
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+
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+static struct mtd_partition magic_partitions[] = {
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+ {
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+ .name = "linux",
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+ .offset = 0x0,
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+ .size = 0x3c0000,
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+ },
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+ {
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+ .name = "rootfs",
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+ .offset = 0x100000,
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+ .size = 0x2c0000,
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+ },
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+ {
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+ .name = "bootloader",
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+ .offset = 0x3c0000,
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+ .size = 0x040000,
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+ .mask_flags = MTD_WRITEABLE,
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+ },
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+};
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+
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+int __init init_magic(void)
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+{
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+ u32 size, len;
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+
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+ magic_map.virt =
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+ (void __iomem *)ioremap(magic_map.phys, magic_map.size);
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+
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+ if (!magic_map.virt) {
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+ printk("Failed to ioremap flash.\n");
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+ return -EIO;
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+ }
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+
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+ simple_map_init(&magic_map);
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+
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+ flash = do_map_probe("cfi_probe", &magic_map);
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+ if (flash) {
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+ flash->owner = THIS_MODULE;
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+ if (MTD_READ(flash, 12, sizeof(u32), &len, (char *) &size) ||
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+ len != 4)
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+ return -ENXIO;
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+ size += 0x40; /* header size of the uImage */
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+ if (size < 0x400000) {
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+ /* skip to next erase block */
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+ if (size & (flash->erasesize - 1)) {
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+ size |= (flash->erasesize - 1);
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+ size += 1;
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+ }
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+ magic_partitions[1].offset = size;
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+ magic_partitions[1].size = magic_partitions[2].offset - size;
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+ }
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+
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+ add_mtd_partitions(flash, magic_partitions,
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+ ARRAY_SIZE(magic_partitions));
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+ } else {
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+ printk("map probe failed for flash\n");
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+ return -ENXIO;
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+ }
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+
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+ return 0;
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+}
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+
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+static void __exit cleanup_magic(void)
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+{
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+ if (flash) {
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+ del_mtd_partitions(flash);
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+ map_destroy(flash);
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+ }
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+
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+ if (magic_map.virt) {
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+ iounmap((void *)magic_map.virt);
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+ magic_map.virt = NULL;
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+ }
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+}
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+
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+module_init(init_magic);
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+module_exit(cleanup_magic);
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+
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+MODULE_LICENSE("GPL");
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+MODULE_AUTHOR("Karol Lewandowski");
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+MODULE_DESCRIPTION("MTD map and partitions for IBM 405EP MagicBox boards");
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diff -urN linux.old/drivers/mtd/maps/Makefile linux.dev/drivers/mtd/maps/Makefile
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--- linux.old/drivers/mtd/maps/Makefile 2006-08-30 06:30:59.000000000 +0200
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+++ linux.dev/drivers/mtd/maps/Makefile 2006-08-30 06:11:51.000000000 +0200
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@@ -58,6 +58,7 @@
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obj-$(CONFIG_MTD_BEECH) += beech-mtd.o
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obj-$(CONFIG_MTD_ARCTIC) += arctic-mtd.o
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obj-$(CONFIG_MTD_WALNUT) += walnut.o
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+obj-$(CONFIG_MTD_MAGICMAP) += magicmap.o
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obj-$(CONFIG_MTD_H720X) += h720x-flash.o
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obj-$(CONFIG_MTD_SBC8240) += sbc8240.o
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obj-$(CONFIG_MTD_NOR_TOTO) += omap-toto-flash.o
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