flash.c
2.28 KB
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
/* Flash mappings for the MB93090-MB00 motherboard
*
* Copyright (C) 2009 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public Licence
* as published by the Free Software Foundation; either version
* 2 of the Licence, or (at your option) any later version.
*/
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#define MB93090_BOOTROM_ADDR 0xFF000000 /* Boot ROM */
#define MB93090_BOOTROM_SIZE (2 * 1024 * 1024)
#define MB93090_USERROM_ADDR 0xFF200000 /* User ROM */
#define MB93090_USERROM_SIZE (2 * 1024 * 1024)
/*
* default MTD partition table for both main flash devices, expected to be
* overridden by RedBoot
*/
static struct mtd_partition mb93090_partitions[] = {
{
.name = "Filesystem",
.size = MTDPART_SIZ_FULL,
.offset = 0,
}
};
/*
* Definition of the MB93090 Boot ROM (on the CPU card)
*/
static struct physmap_flash_data mb93090_bootrom_data = {
.width = 2,
.nr_parts = 2,
.parts = mb93090_partitions,
};
static struct resource mb93090_bootrom_resource = {
.start = MB93090_BOOTROM_ADDR,
.end = MB93090_BOOTROM_ADDR + MB93090_BOOTROM_SIZE - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device mb93090_bootrom = {
.name = "physmap-flash",
.id = 0,
.dev.platform_data = &mb93090_bootrom_data,
.num_resources = 1,
.resource = &mb93090_bootrom_resource,
};
/*
* Definition of the MB93090 User ROM definition (on the motherboard)
*/
static struct physmap_flash_data mb93090_userrom_data = {
.width = 2,
.nr_parts = 2,
.parts = mb93090_partitions,
};
static struct resource mb93090_userrom_resource = {
.start = MB93090_USERROM_ADDR,
.end = MB93090_USERROM_ADDR + MB93090_USERROM_SIZE - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device mb93090_userrom = {
.name = "physmap-flash",
.id = 1,
.dev.platform_data = &mb93090_userrom_data,
.num_resources = 1,
.resource = &mb93090_userrom_resource,
};
/*
* register the MB93090 flashes
*/
static int __init mb93090_mtd_init(void)
{
platform_device_register(&mb93090_bootrom);
platform_device_register(&mb93090_userrom);
return 0;
}
module_init(mb93090_mtd_init);