projects / deliverable / linux.git / blame
| 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; | |
| ee0e87b1 | 39 | mtd_device_register(mymtd, NULL, 0); |
| 1da177e4 LT |
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) { | |
| ee0e87b1 | 50 | mtd_device_unregister(mymtd); |
| 1da177e4 LT |
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"); |