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