2 * ts5500_flash.c -- MTD map driver for Technology Systems TS-5500 board
4 * Copyright (C) 2004 Sean Young <sean@mess.org>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
21 * - In order for detection to work, jumper 3 must be set.
22 * - Drive A and B use the resident flash disk (RFD) flash translation layer.
23 * - If you have created your own jffs file system and the bios overwrites
24 * it during boot, try disabling Drive A: and B: in the boot order.
27 #include <linux/init.h>
28 #include <linux/module.h>
29 #include <linux/kernel.h>
30 #include <linux/mtd/map.h>
31 #include <linux/mtd/mtd.h>
32 #include <linux/mtd/partitions.h>
33 #include <linux/types.h>
36 #define WINDOW_ADDR 0x09400000
37 #define WINDOW_SIZE 0x00200000
39 static struct map_info ts5500_map = {
40 .name = "TS-5500 Flash",
46 static struct mtd_partition ts5500_partitions[] = {
64 #define NUM_PARTITIONS ARRAY_SIZE(ts5500_partitions)
66 static struct mtd_info *mymtd;
68 static int __init init_ts5500_map(void)
72 ts5500_map.virt = ioremap_nocache(ts5500_map.phys, ts5500_map.size);
74 if (!ts5500_map.virt) {
75 printk(KERN_ERR "Failed to ioremap_nocache\n");
80 simple_map_init(&ts5500_map);
82 mymtd = do_map_probe("jedec_probe", &ts5500_map);
84 mymtd = do_map_probe("map_rom", &ts5500_map);
91 mymtd->owner = THIS_MODULE;
92 add_mtd_partitions(mymtd, ts5500_partitions, NUM_PARTITIONS);
98 iounmap(ts5500_map.virt);
103 static void __exit cleanup_ts5500_map(void)
106 del_mtd_partitions(mymtd);
110 if (ts5500_map.virt) {
111 iounmap(ts5500_map.virt);
112 ts5500_map.virt = NULL;
116 module_init(init_ts5500_map);
117 module_exit(cleanup_ts5500_map);
119 MODULE_LICENSE("GPL");
120 MODULE_AUTHOR("Sean Young <sean@mess.org>");
121 MODULE_DESCRIPTION("MTD map driver for Techology Systems TS-5500 board");