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Commit b523b3ba authored by Joern Engel's avatar Joern Engel Committed by Thomas Gleixner
Browse files

[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

drivers/mtd/maps/Kconfig

+8 −1
Original line number Diff line number Diff line 
# 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

drivers/mtd/maps/Makefile

+2 −1
Original line number Diff line number Diff line 
#

# 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

drivers/mtd/maps/mtx-1_flash.c

0 → 100644
+96 −0
Original line number Diff line number Diff line 
/*

 * 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");