1/*
2 * Flash on MPC-1211
3 *
4 * $Id: mpc1211.c,v 1.1.1.1 2007/08/03 18:52:44 Exp $
5 *
6 * (C) 2002 Interface, Saito.K & Jeanne
7 *
8 * GPL'd
9 */
10
11#include <linux/module.h>
12#include <linux/types.h>
13#include <linux/kernel.h>
14#include <asm/io.h>
15#include <linux/mtd/mtd.h>
16#include <linux/mtd/map.h>
17#include <linux/mtd/partitions.h>
18
19static struct mtd_info *flash_mtd;
20static struct mtd_partition *parsed_parts;
21
22struct map_info mpc1211_flash_map = {
23	.name		= "MPC-1211 FLASH",
24	.size		= 0x80000,
25	.bankwidth	= 1,
26};
27
28static struct mtd_partition mpc1211_partitions[] = {
29	{
30		.name	= "IPL & ETH-BOOT",
31		.offset	= 0x00000000,
32		.size	= 0x10000,
33	},
34	{
35		.name	= "Flash FS",
36		.offset	= 0x00010000,
37		.size	= MTDPART_SIZ_FULL,
38	}
39};
40
41static int __init init_mpc1211_maps(void)
42{
43	int nr_parts;
44
45	mpc1211_flash_map.phys = 0;
46	mpc1211_flash_map.virt = (void __iomem *)P2SEGADDR(0);
47
48	simple_map_init(&mpc1211_flash_map);
49
50	printk(KERN_NOTICE "Probing for flash chips at 0x00000000:\n");
51	flash_mtd = do_map_probe("jedec_probe", &mpc1211_flash_map);
52	if (!flash_mtd) {
53		printk(KERN_NOTICE "Flash chips not detected at either possible location.\n");
54		return -ENXIO;
55	}
56	printk(KERN_NOTICE "MPC-1211: Flash at 0x%08lx\n", mpc1211_flash_map.virt & 0x1fffffff);
57	flash_mtd->module = THIS_MODULE;
58
59	parsed_parts = mpc1211_partitions;
60	nr_parts = ARRAY_SIZE(mpc1211_partitions);
61
62	add_mtd_partitions(flash_mtd, parsed_parts, nr_parts);
63	return 0;
64}
65
66static void __exit cleanup_mpc1211_maps(void)
67{
68	if (parsed_parts)
69		del_mtd_partitions(flash_mtd);
70	else
71		del_mtd_device(flash_mtd);
72	map_destroy(flash_mtd);
73}
74
75module_init(init_mpc1211_maps);
76module_exit(cleanup_mpc1211_maps);
77
78MODULE_LICENSE("GPL");
79MODULE_AUTHOR("Saito.K & Jeanne <ksaito@interface.co.jp>");
80MODULE_DESCRIPTION("MTD map driver for MPC-1211 boards. Interface");
81