4 * Copyright (C) 2001 Lineo Japan, Inc.
5 * Copyright (C) 2002 SHARP
7 * $Id: sharpsl-flash.c,v 1.5 2005/03/21 08:42:11 rpurdie Exp $
9 * based on rpxlite.c,v 1.15 2001/10/02 15:05:14 dwmw2 Exp
10 * Handle mapping of the flash on the RPX Lite and CLLF boards
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
24 #include <linux/module.h>
25 #include <linux/types.h>
26 #include <linux/kernel.h>
27 #include <linux/mtd/mtd.h>
28 #include <linux/mtd/map.h>
29 #include <linux/mtd/partitions.h>
31 #include <asm/mach-types.h>
33 #define WINDOW_ADDR 0x00000000
34 #define WINDOW_SIZE 0x00800000
37 static struct mtd_info *mymtd;
39 struct map_info sharpsl_map = {
40 .name = "sharpsl-flash",
42 .bankwidth = BANK_WIDTH,
46 static struct mtd_partition sharpsl_partitions[1] = {
48 name: "Boot PROM Filesystem",
52 #define NB_OF(x) (sizeof(x)/sizeof(x[0]))
54 int __init init_sharpsl(void)
56 struct mtd_partition *parts;
58 char *part_type = "static";
60 printk(KERN_NOTICE "Sharp SL series flash device: %x at %x\n",
61 WINDOW_SIZE, WINDOW_ADDR);
62 sharpsl_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
63 if (!sharpsl_map.virt) {
64 printk("Failed to ioremap\n");
68 simple_map_init(&sharpsl_map);
70 mymtd = do_map_probe("map_rom", &sharpsl_map);
72 iounmap(sharpsl_map.virt);
76 mymtd->owner = THIS_MODULE;
78 if (machine_is_corgi() || machine_is_shepherd() || machine_is_husky()
79 || machine_is_poodle()) {
80 sharpsl_partitions[0].size=0x006d0000;
81 sharpsl_partitions[0].offset=0x00120000;
82 } else if (machine_is_tosa()) {
83 sharpsl_partitions[0].size=0x006a0000;
84 sharpsl_partitions[0].offset=0x00160000;
85 } else if (machine_is_spitz() || machine_is_akita() || machine_is_borzoi()) {
86 sharpsl_partitions[0].size=0x006b0000;
87 sharpsl_partitions[0].offset=0x00140000;
90 iounmap(sharpsl_map.virt);
94 parts = sharpsl_partitions;
95 nb_parts = NB_OF(sharpsl_partitions);
97 printk(KERN_NOTICE "Using %s partision definition\n", part_type);
98 add_mtd_partitions(mymtd, parts, nb_parts);
103 static void __exit cleanup_sharpsl(void)
106 del_mtd_partitions(mymtd);
109 if (sharpsl_map.virt) {
110 iounmap(sharpsl_map.virt);
111 sharpsl_map.virt = 0;
115 module_init(init_sharpsl);
116 module_exit(cleanup_sharpsl);
118 MODULE_LICENSE("GPL");
119 MODULE_AUTHOR("SHARP (Original: Arnold Christensen <AKC@pel.dk>)");
120 MODULE_DESCRIPTION("MTD map driver for SHARP SL series");