diff options
Diffstat (limited to 'drivers/mtd/maps/sharpsl-flash.c')
-rw-r--r-- | drivers/mtd/maps/sharpsl-flash.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/drivers/mtd/maps/sharpsl-flash.c b/drivers/mtd/maps/sharpsl-flash.c new file mode 100644 index 000000000000..b3b39cb7c608 --- /dev/null +++ b/drivers/mtd/maps/sharpsl-flash.c | |||
@@ -0,0 +1,101 @@ | |||
1 | /* | ||
2 | * sharpsl-flash.c | ||
3 | * | ||
4 | * Copyright (C) 2001 Lineo Japan, Inc. | ||
5 | * Copyright (C) 2002 SHARP | ||
6 | * | ||
7 | * $Id: sharpsl-flash.c,v 1.2 2004/11/24 20:38:06 rpurdie Exp $ | ||
8 | * | ||
9 | * based on rpxlite.c,v 1.15 2001/10/02 15:05:14 dwmw2 Exp | ||
10 | * Handle mapping of the flash on the RPX Lite and CLLF boards | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or modify | ||
13 | * it under the terms of the GNU General Public License as published by | ||
14 | * the Free Software Foundation; either version 2 of the License, or | ||
15 | * (at your option) any later version. | ||
16 | * | ||
17 | * This program is distributed in the hope that it will be useful, | ||
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
20 | * GNU General Public License for more details. | ||
21 | * | ||
22 | */ | ||
23 | |||
24 | #include <linux/module.h> | ||
25 | #include <linux/types.h> | ||
26 | #include <linux/kernel.h> | ||
27 | #include <asm/io.h> | ||
28 | #include <linux/mtd/mtd.h> | ||
29 | #include <linux/mtd/map.h> | ||
30 | #include <linux/mtd/partitions.h> | ||
31 | |||
32 | #define WINDOW_ADDR 0x00000000 | ||
33 | #define WINDOW_SIZE 0x01000000 | ||
34 | #define BANK_WIDTH 2 | ||
35 | |||
36 | static struct mtd_info *mymtd; | ||
37 | |||
38 | struct map_info sharpsl_map = { | ||
39 | .name = "sharpsl-flash", | ||
40 | .size = WINDOW_SIZE, | ||
41 | .bankwidth = BANK_WIDTH, | ||
42 | .phys = WINDOW_ADDR | ||
43 | }; | ||
44 | |||
45 | static struct mtd_partition sharpsl_partitions[1] = { | ||
46 | { | ||
47 | name: "Filesystem", | ||
48 | size: 0x006d0000, | ||
49 | offset: 0x00120000 | ||
50 | } | ||
51 | }; | ||
52 | |||
53 | #define NB_OF(x) (sizeof(x)/sizeof(x[0])) | ||
54 | |||
55 | int __init init_sharpsl(void) | ||
56 | { | ||
57 | struct mtd_partition *parts; | ||
58 | int nb_parts = 0; | ||
59 | char *part_type = "static"; | ||
60 | |||
61 | printk(KERN_NOTICE "Sharp SL series flash device: %x at %x\n", WINDOW_SIZE, WINDOW_ADDR); | ||
62 | sharpsl_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE); | ||
63 | if (!sharpsl_map.virt) { | ||
64 | printk("Failed to ioremap\n"); | ||
65 | return -EIO; | ||
66 | } | ||
67 | mymtd = do_map_probe("map_rom", &sharpsl_map); | ||
68 | if (!mymtd) { | ||
69 | iounmap(sharpsl_map.virt); | ||
70 | return -ENXIO; | ||
71 | } | ||
72 | |||
73 | mymtd->owner = THIS_MODULE; | ||
74 | |||
75 | parts = sharpsl_partitions; | ||
76 | nb_parts = NB_OF(sharpsl_partitions); | ||
77 | |||
78 | printk(KERN_NOTICE "Using %s partision definition\n", part_type); | ||
79 | add_mtd_partitions(mymtd, parts, nb_parts); | ||
80 | |||
81 | return 0; | ||
82 | } | ||
83 | |||
84 | static void __exit cleanup_sharpsl(void) | ||
85 | { | ||
86 | if (mymtd) { | ||
87 | del_mtd_partitions(mymtd); | ||
88 | map_destroy(mymtd); | ||
89 | } | ||
90 | if (sharpsl_map.virt) { | ||
91 | iounmap(sharpsl_map.virt); | ||
92 | sharpsl_map.virt = 0; | ||
93 | } | ||
94 | } | ||
95 | |||
96 | module_init(init_sharpsl); | ||
97 | module_exit(cleanup_sharpsl); | ||
98 | |||
99 | MODULE_LICENSE("GPL"); | ||
100 | MODULE_AUTHOR("SHARP (Original: Arnold Christensen <AKC@pel.dk>)"); | ||
101 | MODULE_DESCRIPTION("MTD map driver for SHARP SL series"); | ||