Blackfin arch: Initial patch to add earlyprintk support
[linux-2.6] / drivers / mtd / maps / pq2fads.c
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
31 static 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 */
67 extern unsigned char __res[];
68
69 static 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
80 static void __exit cleanup_pq2fads_mtd(void)
81 {
82 }
83
84 module_init(init_pq2fads_mtd);
85 module_exit(cleanup_pq2fads_mtd);
86
87 MODULE_LICENSE("GPL");
88 MODULE_DESCRIPTION("MTD map and partitions for MPC8272ADS boards");