2 * Flash device on Lasat 100 and 200 boards
4 * (C) 2002 Brian Murphy <brian@murphy.dk>
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License version
8 * 2 as published by the Free Software Foundation.
10 * $Id: lasat.c,v 1.9 2004/11/04 13:24:15 gleixner Exp $
14 #include <linux/module.h>
15 #include <linux/types.h>
16 #include <linux/kernel.h>
17 #include <linux/init.h>
19 #include <linux/mtd/mtd.h>
20 #include <linux/mtd/map.h>
21 #include <linux/mtd/partitions.h>
22 #include <asm/lasat/lasat.h>
24 static struct mtd_info *lasat_mtd;
26 static struct mtd_partition partition_info[LASAT_MTD_LAST];
27 static char *lasat_mtd_partnames[] = {"Bootloader", "Service", "Normal", "Filesystem", "Config"};
29 static void lasat_set_vpp(struct map_info *map, int vpp)
32 *lasat_misc->flash_wp_reg |= 1 << lasat_misc->flash_wp_bit;
34 *lasat_misc->flash_wp_reg &= ~(1 << lasat_misc->flash_wp_bit);
37 static struct map_info lasat_map = {
38 .name = "LASAT flash",
40 .set_vpp = lasat_set_vpp
43 static int __init init_lasat(void)
46 /* since we use AMD chips and set_vpp is not implimented
47 * for these (yet) we still have to permanently enable flash write */
48 printk(KERN_NOTICE "Unprotecting flash\n");
49 ENABLE_VPP((&lasat_map));
51 lasat_map.phys = lasat_flash_partition_start(LASAT_MTD_BOOTLOADER);
52 lasat_map.virt = ioremap_nocache(
53 lasat_map.phys, lasat_board_info.li_flash_size);
54 lasat_map.size = lasat_board_info.li_flash_size;
56 simple_map_init(&lasat_map);
58 for (i=0; i < LASAT_MTD_LAST; i++)
59 partition_info[i].name = lasat_mtd_partnames[i];
61 lasat_mtd = do_map_probe("cfi_probe", &lasat_map);
64 lasat_mtd = do_map_probe("jedec_probe", &lasat_map);
69 lasat_mtd->owner = THIS_MODULE;
71 for (i=0; i < LASAT_MTD_LAST; i++) {
72 size = lasat_flash_partition_size(i);
73 partition_info[i].size = size;
74 partition_info[i].offset = offset;
78 add_mtd_partitions( lasat_mtd, partition_info, LASAT_MTD_LAST );
82 iounmap(lasat_map.virt);
86 static void __exit cleanup_lasat(void)
89 del_mtd_partitions(lasat_mtd);
90 map_destroy(lasat_mtd);
93 iounmap(lasat_map.virt);
98 module_init(init_lasat);
99 module_exit(cleanup_lasat);
101 MODULE_LICENSE("GPL");
102 MODULE_AUTHOR("Brian Murphy <brian@murphy.dk>");
103 MODULE_DESCRIPTION("Lasat Safepipe/Masquerade MTD map driver");