1/*
2 * drivers/mtd/maps/pq2fads.c
3 *
4 * Mapping for the flash SIMM on 8272ADS and PQ2FADS board
5 *
6 * Author: Vitaly Bordug <vbordug@ru.mvista.com>
7 *
8 * 2005 (c) MontaVista Software, Inc. This file is licensed under
9 * the terms of the GNU General Public License version 2. This program
10 * is licensed "as is" without any warranty of any kind, whether express
11 * or implied.
12 */
13
14#include <linux/module.h>
15#include <linux/types.h>
16#include <linux/kernel.h>
17#include <linux/init.h>
18#include <asm/io.h>
19#include <asm/ppcboot.h>
20#include <linux/mtd/mtd.h>
21#include <linux/mtd/map.h>
22#include <linux/mtd/partitions.h>
23#include <linux/mtd/physmap.h>
24
25/*
26  NOTE: bank width and interleave relative to the installed flash
27  should have been chosen within MTD_CFI_GEOMETRY options.
28  */
29#define PQ2FADS_BANK_WIDTH 4
30
31static struct mtd_partition pq2fads_partitions[] = {
32	{
33#ifdef CONFIG_ADS8272
34		.name		= "HRCW",
35		.size		= 0x40000,
36		.offset 	= 0,
37		.mask_flags	= MTD_WRITEABLE,  /* force read-only */
38	}, {
39		.name		= "User FS",
40		.size		= 0x5c0000,
41		.offset 	= 0x40000,
42#else
43		.name		= "User FS",
44		.size		= 0x600000,
45		.offset 	= 0,
46#endif
47	}, {
48		.name		= "uImage",
49		.size		= 0x100000,
50		.offset 	= 0x600000,
51		.mask_flags	= MTD_WRITEABLE,  /* force read-only */
52	}, {
53		.name		= "bootloader",
54		.size		= 0x40000,
55		.offset		= 0x700000,
56		.mask_flags	= MTD_WRITEABLE,  /* force read-only */
57	}, {
58		.name		= "bootloader env",
59		.size		= 0x40000,
60		.offset		= 0x740000,
61		.mask_flags	= MTD_WRITEABLE,  /* force read-only */
62	}
63};
64
65
66/* pointer to MPC885ADS board info data */
67extern unsigned char __res[];
68
69static int __init init_pq2fads_mtd(void)
70{
71	bd_t *bd = (bd_t *)__res;
72	physmap_configure(bd->bi_flashstart, bd->bi_flashsize, PQ2FADS_BANK_WIDTH, NULL);
73
74	physmap_set_partitions(pq2fads_partitions,
75				sizeof (pq2fads_partitions) /
76				sizeof (pq2fads_partitions[0]));
77	return 0;
78}
79
80static void __exit cleanup_pq2fads_mtd(void)
81{
82}
83
84module_init(init_pq2fads_mtd);
85module_exit(cleanup_pq2fads_mtd);
86
87MODULE_LICENSE("GPL");
88MODULE_DESCRIPTION("MTD map and partitions for MPC8272ADS boards");
89