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Commit b523b3ba authored by Joern Engel's avatar Joern Engel Committed by Thomas Gleixner
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[MTD] maps: Add support for MTX-1 Flash device



Add support for "4G Systems MTX-1 Flash device", better known as meshcube.

From: Bruno Randolf <bruno.randolf@4g-systems.biz>
Signed-off-by: default avatarJoern Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 34c0e906
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# drivers/mtd/maps/Kconfig
# $Id: Kconfig,v 1.58 2005/09/14 19:14:13 tpoynor Exp $
# $Id: Kconfig,v 1.59 2005/09/18 10:46:41 joern Exp $

menu "Mapping drivers for chip access"
	depends on MTD!=n
@@ -214,6 +214,13 @@ config MTD_ALCHEMY
	help
	  Flash memory access on AMD Alchemy Pb/Db/RDK Reference Boards

config MTD_MTX1
	tristate "4G Systems MTX-1 Flash device"
	depends on MIPS && MIPS_MTX1
	help
	  Flash memory access on 4G Systems MTX-1 Board. If you have one of
	  these boards and would like to use the flash chips on it, say 'Y'.

config MTD_DILNETPC
	tristate "CFI Flash device mapped on DIL/Net PC"
	depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT
+2 −1
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#
# linux/drivers/maps/Makefile
#
# $Id: Makefile.common,v 1.31 2005/09/14 19:14:13 tpoynor Exp $
# $Id: Makefile.common,v 1.32 2005/09/18 10:46:41 joern Exp $

ifeq ($(CONFIG_MTD_COMPLEX_MAPPINGS),y)
obj-$(CONFIG_MTD)		+= map_funcs.o
@@ -71,3 +71,4 @@ obj-$(CONFIG_MTD_SHARP_SL) += sharpsl-flash.o
obj-$(CONFIG_MTD_PLATRAM)	+= plat-ram.o
obj-$(CONFIG_MTD_OMAP_NOR)	+= omap_nor.o
obj-$(CONFIG_MTD_PQ2FADS)	+= pq2fads.o
obj-$(CONFIG_MTD_MTX1)		+= mtx-1_flash.o
+96 −0
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/*
 * Flash memory access on 4G Systems MTX-1 boards
 *
 * $Id: mtx-1_flash.c,v 1.1 2005/09/18 10:46:41 joern Exp $
 *
 * (C) 2005 Bruno Randolf <bruno.randolf@4g-systems.biz>
 * (C) 2005 Jrn Engel <joern@wohnheim.fh-wedel.de>
 *
 */

#include <linux/config.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/kernel.h>

#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>

#include <asm/io.h>

static struct map_info mtx1_map = {
	.name = "MTX-1 flash",
	.bankwidth = 4,
	.size = 0x2000000,
	.phys = 0x1E000000,
};

static struct mtd_partition mtx1_partitions[] = {
        {
                .name = "filesystem",
                .size = 0x01C00000,
                .offset = 0,
        },{
                .name = "yamon",
                .size = 0x00100000,
                .offset = MTDPART_OFS_APPEND,
                .mask_flags = MTD_WRITEABLE,
        },{
                .name = "kernel",
                .size = 0x002c0000,
                .offset = MTDPART_OFS_APPEND,
        },{
                .name = "yamon env",
                .size = 0x00040000,
                .offset = MTDPART_OFS_APPEND,
        }
};

static struct mtd_info *mtx1_mtd;

int __init mtx1_mtd_init(void)
{
	int ret = -ENXIO;

	simple_map_init(&mtx1_map);

	mtx1_map.virt = ioremap(mtx1_map.phys, mtx1_map.size);
	if (!mtx1_map.virt)
		return -EIO;

	mtx1_mtd = do_map_probe("cfi_probe", &mtx1_map);
	if (!mtx1_mtd)
		goto err;

	mtx1_mtd->owner = THIS_MODULE;

	ret = add_mtd_partitions(mtx1_mtd, mtx1_partitions, 
			ARRAY_SIZE(mtx1_partitions));
	if (ret)
		goto err;

	return 0;

err:
       iounmap(mtx1_map.virt);
       return ret;
}

static void __exit mtx1_mtd_cleanup(void)
{
	if (mtx1_mtd) {
		del_mtd_partitions(mtx1_mtd);
		map_destroy(mtx1_mtd);
	}
	if (mtx1_map.virt)
		iounmap(mtx1_map.virt);
}

module_init(mtx1_mtd_init);
module_exit(mtx1_mtd_cleanup);

MODULE_AUTHOR("Bruno Randolf <bruno.randolf@4g-systems.biz>");
MODULE_DESCRIPTION("MTX-1 flash map");
MODULE_LICENSE("GPL");