/* * Flash memory access on 4G Systems MTX-1 boards * * $Id: mtx-1_flash.c,v 1.2 2005/11/07 11:14:27 gleixner Exp $ * * (C) 2005 Bruno Randolf <bruno.randolf@4g-systems.biz> * (C) 2005 J鰎n 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");