mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-26 03:20:55 +07:00
6ab3d5624e
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
81 lines
1.8 KiB
C
81 lines
1.8 KiB
C
/*
|
|
* 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>
|
|
|
|
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");
|