Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
1da177e4 LT |
2 | * Handle mapping of the flash on the RPX Lite and CLLF boards |
3 | */ | |
4 | ||
5 | #include <linux/module.h> | |
6 | #include <linux/types.h> | |
7 | #include <linux/kernel.h> | |
8 | #include <linux/init.h> | |
9 | #include <asm/io.h> | |
10 | #include <linux/mtd/mtd.h> | |
11 | #include <linux/mtd/map.h> | |
12 | ||
13 | ||
14 | #define WINDOW_ADDR 0xfe000000 | |
15 | #define WINDOW_SIZE 0x800000 | |
16 | ||
17 | static struct mtd_info *mymtd; | |
18 | ||
19 | static struct map_info rpxlite_map = { | |
20 | .name = "RPX", | |
21 | .size = WINDOW_SIZE, | |
22 | .bankwidth = 4, | |
23 | .phys = WINDOW_ADDR, | |
24 | }; | |
25 | ||
bc185405 | 26 | static int __init init_rpxlite(void) |
1da177e4 LT |
27 | { |
28 | printk(KERN_NOTICE "RPX Lite or CLLF flash device: %x at %x\n", WINDOW_SIZE*4, WINDOW_ADDR); | |
29 | rpxlite_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE * 4); | |
30 | ||
31 | if (!rpxlite_map.virt) { | |
32 | printk("Failed to ioremap\n"); | |
33 | return -EIO; | |
34 | } | |
35 | simple_map_init(&rpxlite_map); | |
36 | mymtd = do_map_probe("cfi_probe", &rpxlite_map); | |
37 | if (mymtd) { | |
38 | mymtd->owner = THIS_MODULE; | |
39 | add_mtd_device(mymtd); | |
40 | return 0; | |
41 | } | |
42 | ||
43 | iounmap((void *)rpxlite_map.virt); | |
44 | return -ENXIO; | |
45 | } | |
46 | ||
47 | static void __exit cleanup_rpxlite(void) | |
48 | { | |
49 | if (mymtd) { | |
50 | del_mtd_device(mymtd); | |
51 | map_destroy(mymtd); | |
52 | } | |
53 | if (rpxlite_map.virt) { | |
54 | iounmap((void *)rpxlite_map.virt); | |
55 | rpxlite_map.virt = 0; | |
56 | } | |
57 | } | |
58 | ||
59 | module_init(init_rpxlite); | |
60 | module_exit(cleanup_rpxlite); | |
61 | ||
62 | MODULE_LICENSE("GPL"); | |
63 | MODULE_AUTHOR("Arnold Christensen <AKC@pel.dk>"); | |
64 | MODULE_DESCRIPTION("MTD map driver for RPX Lite and CLLF boards"); |