diff options
Diffstat (limited to 'drivers/mtd/maps/mpc1211.c')
-rw-r--r-- | drivers/mtd/maps/mpc1211.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/drivers/mtd/maps/mpc1211.c b/drivers/mtd/maps/mpc1211.c new file mode 100644 index 00000000000..4685e8e1346 --- /dev/null +++ b/drivers/mtd/maps/mpc1211.c @@ -0,0 +1,81 @@ +/* + * Flash on MPC-1211 + * + * $Id: mpc1211.c,v 1.4 2004/09/16 23:27:13 gleixner Exp $ + * + * (C) 2002 Interface, Saito.K & Jeanne + * + * GPL'd + */ + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <asm/io.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/config.h> + +static struct mtd_info *flash_mtd; +static struct mtd_partition *parsed_parts; + +struct map_info mpc1211_flash_map = { + .name = "MPC-1211 FLASH", + .size = 0x80000, + .bankwidth = 1, +}; + +static struct mtd_partition mpc1211_partitions[] = { + { + .name = "IPL & ETH-BOOT", + .offset = 0x00000000, + .size = 0x10000, + }, + { + .name = "Flash FS", + .offset = 0x00010000, + .size = MTDPART_SIZ_FULL, + } +}; + +static int __init init_mpc1211_maps(void) +{ + int nr_parts; + + mpc1211_flash_map.phys = 0; + mpc1211_flash_map.virt = (void __iomem *)P2SEGADDR(0); + + simple_map_init(&mpc1211_flash_map); + + printk(KERN_NOTICE "Probing for flash chips at 0x00000000:\n"); + flash_mtd = do_map_probe("jedec_probe", &mpc1211_flash_map); + if (!flash_mtd) { + printk(KERN_NOTICE "Flash chips not detected at either possible location.\n"); + return -ENXIO; + } + printk(KERN_NOTICE "MPC-1211: Flash at 0x%08lx\n", mpc1211_flash_map.virt & 0x1fffffff); + flash_mtd->module = THIS_MODULE; + + parsed_parts = mpc1211_partitions; + nr_parts = ARRAY_SIZE(mpc1211_partitions); + + add_mtd_partitions(flash_mtd, parsed_parts, nr_parts); + return 0; +} + +static void __exit cleanup_mpc1211_maps(void) +{ + if (parsed_parts) + del_mtd_partitions(flash_mtd); + else + del_mtd_device(flash_mtd); + map_destroy(flash_mtd); +} + +module_init(init_mpc1211_maps); +module_exit(cleanup_mpc1211_maps); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Saito.K & Jeanne <ksaito@interface.co.jp>"); +MODULE_DESCRIPTION("MTD map driver for MPC-1211 boards. Interface"); |