1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
/*
* $Id$
* Copyright (C) 2005 Gemtek Corporation, Dante Su (dante_su@gemtek.com.tw)
* Copyright (C) 2006 Florian Fainelli <florian@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <asm/io.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/mtd/map.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/vmalloc.h>
#define WINDOW_ADDR 0xFFC00000
#define WINDOW_SIZE 0x00400000
#define BUSWIDTH 2
extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts, unsigned long fis_origin);
static struct mtd_partition *parsed_parts;
static struct mtd_info *rdc3210_mtd_info;
static struct map_info rdc3210_map = {
.name = "rdc3210",
.size = WINDOW_SIZE,
.bankwidth = BUSWIDTH,
.phys = WINDOW_ADDR,
};
static struct mtd_partition rdc3210_parts[] = {
{ name: "linux", offset: 0, size: 0x003C0000 }, /* 3840 KB = (Kernel + ROMFS) = (768 KB + 3072 KB) */
{ name: "romfs", offset: 0x000C0000, size: 0x00300000 }, /* 3072 KB */
{ name: "nvram", offset: 0x003C0000, size: 0x00010000 }, /* 64 KB */
{ name: "factory", offset: 0x003D0000, size: 0x00010000 }, /* 64 KB */
{ name: "bootldr", offset: 0x003E0000, size: 0x00020000, mask_flags: MTD_WRITEABLE },/* 128 KB */
};
static int __init rdc3210_mtd_init(void)
{
printk(KERN_INFO "rdc3210: 0x%08x at 0x%08x\n", WINDOW_SIZE, WINDOW_ADDR);
rdc3210_map.virt = ioremap_nocache(WINDOW_ADDR, WINDOW_SIZE);
if (!rdc3210_map.virt) {
printk(KERN_ERR "rdc3210: failed to ioremap\n");
return -EIO;
}
simple_map_init(&rdc3210_map);
rdc3210_mtd_info = do_map_probe("cfi_probe", &rdc3210_map);
if (rdc3210_mtd_info)
{
rdc3210_mtd_info->owner = THIS_MODULE;
int parsed_nr_parts = 0;
char * part_type;
#ifdef CONFIG_MTD_REDBOOT_PARTS
if (parsed_nr_parts == 0)
{
int ret = parse_redboot_partitions(rdc3210_mtd_info, &parsed_parts, 0);
if (ret > 0)
{
part_type = "RedBoot";
parsed_nr_parts = ret;
} else {
printk(KERN_ERR "rdc3210: failed to parse RedBoot partitions, using static mapping\n");
add_mtd_partitions(rdc3210_mtd_info, rdc3210_parts, sizeof(rdc3210_parts)/sizeof(rdc3210_parts[0]));
return -ENXIO;
}
}
add_mtd_partitions(rdc3210_mtd_info, parsed_parts, parsed_nr_parts);
return 0;
}
#endif
iounmap(rdc3210_map.virt);
return -ENXIO;
}
static void __exit rdc3210_mtd_cleanup(void)
{
if (rdc3210_mtd_info)
{
del_mtd_partitions(rdc3210_mtd_info);
map_destroy(rdc3210_mtd_info);
}
if (rdc3210_map.virt) {
iounmap(rdc3210_map.virt);
rdc3210_map.virt = 0;
}
}
module_init(rdc3210_mtd_init);
module_exit(rdc3210_mtd_cleanup);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("RDC3210 flash map driver");
MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
|
