projects / linux-2.6 / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * $Id: rpxlite.c,v 1.22 2004/11/04 13:24:15 gleixner Exp $ | |
| 3 | * | |
| 4 | * Handle mapping of the flash on the RPX Lite and CLLF boards | |
| 5 | */ | |
| 6 | ||
| 7 | #include <linux/module.h> | |
| 8 | #include <linux/types.h> | |
| 9 | #include <linux/kernel.h> | |
| 10 | #include <linux/init.h> | |
| 11 | #include <asm/io.h> | |
| 12 | #include <linux/mtd/mtd.h> | |
| 13 | #include <linux/mtd/map.h> | |
| 14 | ||
| 15 | ||
| 16 | #define WINDOW_ADDR 0xfe000000 | |
| 17 | #define WINDOW_SIZE 0x800000 | |
| 18 | ||
| 19 | static struct mtd_info *mymtd; | |
| 20 | ||
| 21 | static struct map_info rpxlite_map = { | |
| 22 | .name = "RPX", | |
| 23 | .size = WINDOW_SIZE, | |
| 24 | .bankwidth = 4, | |
| 25 | .phys = WINDOW_ADDR, | |
| 26 | }; | |
| 27 | ||
| 28 | int __init init_rpxlite(void) | |
| 29 | { | |
| 30 | printk(KERN_NOTICE "RPX Lite or CLLF flash device: %x at %x\n", WINDOW_SIZE*4, WINDOW_ADDR); | |
| 31 | rpxlite_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE * 4); | |
| 32 | ||
| 33 | if (!rpxlite_map.virt) { | |
| 34 | printk("Failed to ioremap\n"); | |
| 35 | return -EIO; | |
| 36 | } | |
| 37 | simple_map_init(&rpxlite_map); | |
| 38 | mymtd = do_map_probe("cfi_probe", &rpxlite_map); | |
| 39 | if (mymtd) { | |
| 40 | mymtd->owner = THIS_MODULE; | |
| 41 | add_mtd_device(mymtd); | |
| 42 | return 0; | |
| 43 | } | |
| 44 | ||
| 45 | iounmap((void *)rpxlite_map.virt); | |
| 46 | return -ENXIO; | |
| 47 | } | |
| 48 | ||
| 49 | static void __exit cleanup_rpxlite(void) | |
| 50 | { | |
| 51 | if (mymtd) { | |
| 52 | del_mtd_device(mymtd); | |
| 53 | map_destroy(mymtd); | |
| 54 | } | |
| 55 | if (rpxlite_map.virt) { | |
| 56 | iounmap((void *)rpxlite_map.virt); | |
| 57 | rpxlite_map.virt = 0; | |
| 58 | } | |
| 59 | } | |
| 60 | ||
| 61 | module_init(init_rpxlite); | |
| 62 | module_exit(cleanup_rpxlite); | |
| 63 | ||
| 64 | MODULE_LICENSE("GPL"); | |
| 65 | MODULE_AUTHOR("Arnold Christensen <AKC@pel.dk>"); | |
| 66 | MODULE_DESCRIPTION("MTD map driver for RPX Lite and CLLF boards"); |