blob: 4685e8e134601d0ffa02f5916d8473a102f60d9d (
plain) (
tree)
|
|
/*
* Flash on MPC-1211
*
* $Id: mpc1211.c,v 1.4 2004/09/16 23:27:13 gleixner Exp $
*
* (C) 2002 Interface, Saito.K & Jeanne
*
* GPL'd
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <asm/io.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>
#include <linux/config.h>
static struct mtd_info *flash_mtd;
static struct mtd_partition *parsed_parts;
struct map_info mpc1211_flash_map = {
.name = "MPC-1211 FLASH",
.size = 0x80000,
.bankwidth = 1,
};
static struct mtd_partition mpc1211_partitions[] = {
{
.name = "IPL & ETH-BOOT",
.offset = 0x00000000,
.size = 0x10000,
},
{
.name = "Flash FS",
.offset = 0x00010000,
.size = MTDPART_SIZ_FULL,
}
};
static int __init init_mpc1211_maps(void)
{
int nr_parts;
mpc1211_flash_map.phys = 0;
mpc1211_flash_map.virt = (void __iomem *)P2SEGADDR(0);
simple_map_init(&mpc1211_flash_map);
printk(KERN_NOTICE "Probing for flash chips at 0x00000000:\n");
flash_mtd = do_map_probe("jedec_probe", &mpc1211_flash_map);
if (!flash_mtd) {
printk(KERN_NOTICE "Flash chips not detected at either possible location.\n");
return -ENXIO;
}
printk(KERN_NOTICE "MPC-1211: Flash at 0x%08lx\n", mpc1211_flash_map.virt & 0x1fffffff);
flash_mtd->module = THIS_MODULE;
parsed_parts = mpc1211_partitions;
nr_parts = ARRAY_SIZE(mpc1211_partitions);
add_mtd_partitions(flash_mtd, parsed_parts, nr_parts);
return 0;
}
static void __exit cleanup_mpc1211_maps(void)
{
if (parsed_parts)
del_mtd_partitions(flash_mtd);
else
del_mtd_device(flash_mtd);
map_destroy(flash_mtd);
}
module_init(init_mpc1211_maps);
module_exit(cleanup_mpc1211_maps);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Saito.K & Jeanne <ksaito@interface.co.jp>");
MODULE_DESCRIPTION("MTD map driver for MPC-1211 boards. Interface");
|
