diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/mtd/maps/ts5500_flash.c |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/mtd/maps/ts5500_flash.c')
-rw-r--r-- | drivers/mtd/maps/ts5500_flash.c | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/drivers/mtd/maps/ts5500_flash.c b/drivers/mtd/maps/ts5500_flash.c new file mode 100644 index 000000000000..3ebd90f56503 --- /dev/null +++ b/drivers/mtd/maps/ts5500_flash.c | |||
@@ -0,0 +1,141 @@ | |||
1 | /* | ||
2 | * ts5500_flash.c -- MTD map driver for Technology Systems TS-5500 board | ||
3 | * | ||
4 | * Copyright (C) 2004 Sean Young <sean@mess.org> | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation; either version 2 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | * This program is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | * GNU General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public License | ||
17 | * along with this program; if not, write to the Free Software | ||
18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA | ||
19 | * | ||
20 | * Note: | ||
21 | * - In order for detection to work, jumper 3 must be set. | ||
22 | * - Drive A and B use a proprietary FTL from General Software which isn't | ||
23 | * supported as of yet so standard drives can't be mounted; you can create | ||
24 | * your own (e.g. jffs) file system. | ||
25 | * - If you have created your own jffs file system and the bios overwrites | ||
26 | * it during boot, try disabling Drive A: and B: in the boot order. | ||
27 | * | ||
28 | * $Id: ts5500_flash.c,v 1.2 2004/11/28 09:40:40 dwmw2 Exp $ | ||
29 | */ | ||
30 | |||
31 | #include <linux/config.h> | ||
32 | #include <linux/module.h> | ||
33 | #include <linux/types.h> | ||
34 | #include <linux/kernel.h> | ||
35 | #include <linux/init.h> | ||
36 | #include <linux/mtd/mtd.h> | ||
37 | #include <linux/mtd/map.h> | ||
38 | |||
39 | #ifdef CONFIG_MTD_PARTITIONS | ||
40 | #include <linux/mtd/partitions.h> | ||
41 | #endif | ||
42 | |||
43 | #define WINDOW_ADDR 0x09400000 | ||
44 | #define WINDOW_SIZE 0x00200000 | ||
45 | |||
46 | static struct map_info ts5500_map = { | ||
47 | .name = "TS-5500 Flash", | ||
48 | .size = WINDOW_SIZE, | ||
49 | .bankwidth = 1, | ||
50 | .phys = WINDOW_ADDR | ||
51 | }; | ||
52 | |||
53 | #ifdef CONFIG_MTD_PARTITIONS | ||
54 | static struct mtd_partition ts5500_partitions[] = { | ||
55 | { | ||
56 | .name = "Drive A", | ||
57 | .offset = 0, | ||
58 | .size = 0x0e0000 | ||
59 | }, | ||
60 | { | ||
61 | .name = "BIOS", | ||
62 | .offset = 0x0e0000, | ||
63 | .size = 0x020000, | ||
64 | }, | ||
65 | { | ||
66 | .name = "Drive B", | ||
67 | .offset = 0x100000, | ||
68 | .size = 0x100000 | ||
69 | } | ||
70 | }; | ||
71 | |||
72 | #define NUM_PARTITIONS (sizeof(ts5500_partitions)/sizeof(struct mtd_partition)) | ||
73 | |||
74 | #endif | ||
75 | |||
76 | static struct mtd_info *mymtd; | ||
77 | |||
78 | static int __init init_ts5500_map(void) | ||
79 | { | ||
80 | int rc = 0; | ||
81 | |||
82 | ts5500_map.virt = ioremap_nocache(ts5500_map.phys, ts5500_map.size); | ||
83 | |||
84 | if(!ts5500_map.virt) { | ||
85 | printk(KERN_ERR "Failed to ioremap_nocache\n"); | ||
86 | rc = -EIO; | ||
87 | goto err_out_ioremap; | ||
88 | } | ||
89 | |||
90 | simple_map_init(&ts5500_map); | ||
91 | |||
92 | mymtd = do_map_probe("jedec_probe", &ts5500_map); | ||
93 | if(!mymtd) | ||
94 | mymtd = do_map_probe("map_rom", &ts5500_map); | ||
95 | |||
96 | if(!mymtd) { | ||
97 | rc = -ENXIO; | ||
98 | goto err_out_map; | ||
99 | } | ||
100 | |||
101 | mymtd->owner = THIS_MODULE; | ||
102 | #ifdef CONFIG_MTD_PARTITIONS | ||
103 | add_mtd_partitions(mymtd, ts5500_partitions, NUM_PARTITIONS); | ||
104 | #else | ||
105 | add_mtd_device(mymtd); | ||
106 | #endif | ||
107 | |||
108 | return 0; | ||
109 | |||
110 | err_out_map: | ||
111 | map_destroy(mymtd); | ||
112 | err_out_ioremap: | ||
113 | iounmap(ts5500_map.virt); | ||
114 | |||
115 | return rc; | ||
116 | } | ||
117 | |||
118 | static void __exit cleanup_ts5500_map(void) | ||
119 | { | ||
120 | if (mymtd) { | ||
121 | #ifdef CONFIG_MTD_PARTITIONS | ||
122 | del_mtd_partitions(mymtd); | ||
123 | #else | ||
124 | del_mtd_device(mymtd); | ||
125 | #endif | ||
126 | map_destroy(mymtd); | ||
127 | } | ||
128 | |||
129 | if (ts5500_map.virt) { | ||
130 | iounmap(ts5500_map.virt); | ||
131 | ts5500_map.virt = NULL; | ||
132 | } | ||
133 | } | ||
134 | |||
135 | module_init(init_ts5500_map); | ||
136 | module_exit(cleanup_ts5500_map); | ||
137 | |||
138 | MODULE_LICENSE("GPL"); | ||
139 | MODULE_AUTHOR("Sean Young <sean@mess.org>"); | ||
140 | MODULE_DESCRIPTION("MTD map driver for Techology Systems TS-5500 board"); | ||
141 | |||