Commit | Line | Data |
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1da177e4 | 1 | /* |
69f34c98 TG |
2 | * $Id: beech-mtd.c,v 1.11 2005/11/07 11:14:26 gleixner Exp $ |
3 | * | |
4 | * drivers/mtd/maps/beech-mtd.c MTD mappings and partition tables for | |
1da177e4 LT |
5 | * IBM 405LP Beech boards. |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | * | |
21 | * Copyright (C) 2002, International Business Machines Corporation | |
22 | * All Rights Reserved. | |
23 | * | |
24 | * Bishop Brock | |
25 | * IBM Research, Austin Center for Low-Power Computing | |
26 | * bcbrock@us.ibm.com | |
27 | * March 2002 | |
28 | * | |
29 | */ | |
30 | ||
31 | #include <linux/kernel.h> | |
32 | #include <linux/module.h> | |
33 | #include <linux/types.h> | |
34 | #include <linux/init.h> | |
35 | ||
36 | #include <linux/mtd/mtd.h> | |
37 | #include <linux/mtd/map.h> | |
38 | #include <linux/mtd/partitions.h> | |
39 | ||
40 | #include <asm/io.h> | |
41 | #include <asm/ibm4xx.h> | |
42 | ||
43 | #define NAME "Beech Linux Flash" | |
44 | #define PADDR BEECH_BIGFLASH_PADDR | |
45 | #define SIZE BEECH_BIGFLASH_SIZE | |
46 | #define BUSWIDTH 1 | |
47 | ||
48 | /* Flash memories on these boards are memory resources, accessed big-endian. */ | |
49 | ||
50 | ||
51 | static struct map_info beech_mtd_map = { | |
52 | .name = NAME, | |
53 | .size = SIZE, | |
54 | .bankwidth = BUSWIDTH, | |
55 | .phys = PADDR | |
56 | }; | |
57 | ||
58 | static struct mtd_info *beech_mtd; | |
59 | ||
60 | static struct mtd_partition beech_partitions[2] = { | |
61 | { | |
62 | .name = "Linux Kernel", | |
63 | .size = BEECH_KERNEL_SIZE, | |
64 | .offset = BEECH_KERNEL_OFFSET | |
65 | }, { | |
66 | .name = "Free Area", | |
67 | .size = BEECH_FREE_AREA_SIZE, | |
68 | .offset = BEECH_FREE_AREA_OFFSET | |
69 | } | |
70 | }; | |
71 | ||
72 | static int __init | |
73 | init_beech_mtd(void) | |
74 | { | |
25f0c659 AL |
75 | int err = 0; |
76 | ||
1da177e4 LT |
77 | printk("%s: 0x%08x at 0x%08x\n", NAME, SIZE, PADDR); |
78 | ||
79 | beech_mtd_map.virt = ioremap(PADDR, SIZE); | |
80 | ||
81 | if (!beech_mtd_map.virt) { | |
82 | printk("%s: failed to ioremap 0x%x\n", NAME, PADDR); | |
83 | return -EIO; | |
84 | } | |
85 | ||
86 | simple_map_init(&beech_mtd_map); | |
87 | ||
88 | printk("%s: probing %d-bit flash bus\n", NAME, BUSWIDTH * 8); | |
89 | beech_mtd = do_map_probe("cfi_probe", &beech_mtd_map); | |
90 | ||
25f0c659 AL |
91 | if (!beech_mtd) { |
92 | iounmap((void *) beech_mtd_map.virt); | |
1da177e4 | 93 | return -ENXIO; |
25f0c659 | 94 | } |
1da177e4 LT |
95 | |
96 | beech_mtd->owner = THIS_MODULE; | |
97 | ||
25f0c659 AL |
98 | err = add_mtd_partitions(beech_mtd, beech_partitions, 2); |
99 | if (err) { | |
100 | printk("%s: add_mtd_partitions failed\n", NAME); | |
101 | iounmap((void *) beech_mtd_map.virt); | |
102 | } | |
103 | ||
104 | return err; | |
1da177e4 LT |
105 | } |
106 | ||
107 | static void __exit | |
108 | cleanup_beech_mtd(void) | |
109 | { | |
110 | if (beech_mtd) { | |
111 | del_mtd_partitions(beech_mtd); | |
112 | map_destroy(beech_mtd); | |
113 | iounmap((void *) beech_mtd_map.virt); | |
114 | } | |
115 | } | |
116 | ||
117 | module_init(init_beech_mtd); | |
118 | module_exit(cleanup_beech_mtd); | |
119 | ||
120 | MODULE_LICENSE("GPL"); | |
121 | MODULE_AUTHOR("Bishop Brock <bcbrock@us.ibm.com>"); | |
122 | MODULE_DESCRIPTION("MTD map and partitions for IBM 405LP Beech boards"); |