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/*
* Flash device on Lasat 100 and 200 boards
*
* (C) 2002 Brian Murphy <brian@murphy.dk>
*
* 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.
*
* $Id: lasat.c,v 1.9 2004/11/04 13:24:15 gleixner Exp $
*
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <asm/io.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>
#include <asm/lasat/lasat.h>
static struct mtd_info *lasat_mtd;
static struct mtd_partition partition_info[LASAT_MTD_LAST];
static char *lasat_mtd_partnames[] = {"Bootloader", "Service", "Normal", "Filesystem", "Config"};
static void lasat_set_vpp(struct map_info *map, int vpp)
{
if (vpp)
*lasat_misc->flash_wp_reg |= 1 << lasat_misc->flash_wp_bit;
else
*lasat_misc->flash_wp_reg &= ~(1 << lasat_misc->flash_wp_bit);
}
static struct map_info lasat_map = {
.name = "LASAT flash",
.bankwidth = 4,
.set_vpp = lasat_set_vpp
};
static int __init init_lasat(void)
{
int i;
/* since we use AMD chips and set_vpp is not implimented
* for these (yet) we still have to permanently enable flash write */
printk(KERN_NOTICE "Unprotecting flash\n");
ENABLE_VPP((&lasat_map));
lasat_map.phys = lasat_flash_partition_start(LASAT_MTD_BOOTLOADER);
lasat_map.virt = ioremap_nocache(
lasat_map.phys, lasat_board_info.li_flash_size);
lasat_map.size = lasat_board_info.li_flash_size;
simple_map_init(&lasat_map);
for (i=0; i < LASAT_MTD_LAST; i++)
partition_info[i].name = lasat_mtd_partnames[i];
lasat_mtd = do_map_probe("cfi_probe", &lasat_map);
if (!lasat_mtd)
lasat_mtd = do_map_probe("jedec_probe", &lasat_map);
if (lasat_mtd) {
u32 size, offset = 0;
lasat_mtd->owner = THIS_MODULE;
for (i=0; i < LASAT_MTD_LAST; i++) {
size = lasat_flash_partition_size(i);
partition_info[i].size = size;
partition_info[i].offset = offset;
offset += size;
}
add_mtd_partitions( lasat_mtd, partition_info, LASAT_MTD_LAST );
return 0;
}
iounmap(lasat_map.virt);
return -ENXIO;
}
static void __exit cleanup_lasat(void)
{
if (lasat_mtd) {
del_mtd_partitions(lasat_mtd);
map_destroy(lasat_mtd);
}
if (lasat_map.virt) {
iounmap(lasat_map.virt);
lasat_map.virt = 0;
}
}
module_init(init_lasat);
module_exit(cleanup_lasat);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Brian Murphy <brian@murphy.dk>");
MODULE_DESCRIPTION("Lasat Safepipe/Masquerade MTD map driver");
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