Openwrt/target/linux/adm5120-2.6/files/drivers/mtd/maps/adm5120_mtd.c

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/*
* Flash device on the ADM5120 board
*
* Copyright Jeroen Vreeken (pe1rxq@amsat.org), 2005
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 as published by the Free Software Foundation.
*/
#include <linux/autoconf.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#define FLASH_PHYS_ADDR 0x1FC00000
#define FLASH_SIZE 0x200000
static struct mtd_info *adm5120_mtd;
static struct map_info adm5120_mtd_map = {
.name = "ADM5120",
.size = FLASH_SIZE,
.bankwidth = 2,
.phys = FLASH_PHYS_ADDR,
};
static int __init adm5120_mtd_init(void)
{
printk(KERN_INFO "ADM5120 board flash (0x%x at 0x%x)\n", FLASH_SIZE,
FLASH_PHYS_ADDR);
adm5120_mtd_map.virt = ioremap_nocache(FLASH_PHYS_ADDR, FLASH_SIZE);
simple_map_init(&adm5120_mtd_map);
adm5120_mtd = do_map_probe("cfi_probe", &adm5120_mtd_map);
if (adm5120_mtd) {
adm5120_mtd->owner = THIS_MODULE;
add_mtd_device(adm5120_mtd);
return 0;
}
return -ENXIO;
}
static void __exit adm5120_mtd_exit(void)
{
del_mtd_device(adm5120_mtd);
map_destroy(adm5120_mtd);
}
module_init(adm5120_mtd_init);
module_exit(adm5120_mtd_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Jeroen Vreeken (pe1rxq@amsat.org)");
MODULE_DESCRIPTION("MTD map driver for ADM5120 boards");