source: trunk/target/linux/rdc/files-2.6.30/arch/x86/mach-rdc321x/boards/sitecom.c @ 20294

Last change on this file since 20294 was 20294, checked in by florian, 7 years ago

[rdc] rework board detection

Rework board detection, separate board specific code into its own file. As a
result we also change the way rdc images are generated.
Support for board which required binary tools, like AMIT are dropped. Patch by
Bernhard Loos.

File size: 3.2 KB
Line 
1/*
2 *  Sitecom RDC321x platform devices
3 *
4 *  Copyright (C) 2007-2009 OpenWrt.org
5 *  Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>
6 *  Copyright (C) 2008-2009 Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
7 *
8 *  This program is free software; you can redistribute it and/or
9 *  modify it under the terms of the GNU General Public License
10 *  as published by the Free Software Foundation; either version 2
11 *  of the License, or (at your option) any later version.
12 *
13 *  This program is distributed in the hope that it will be useful,
14 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *  GNU General Public License for more details.
17 *
18 *  You should have received a copy of the GNU General Public License
19 *  along with this program; if not, write to the
20 *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 *  Boston, MA  02110-1301, USA.
22 *
23 */
24
25#include <linux/init.h>
26#include <linux/mtd/physmap.h>
27#include <linux/input.h>
28
29#include <asm/rdc_boards.h>
30
31struct image_header {
32        char    magic[4];
33        u32     kernel_length;
34        u32     ramdisk_length;
35        char    magic2[4];
36        u32     kernel_length2;
37};
38
39static struct gpio_led sitecom_leds[] = {
40        { .name = "rdc321x:power", .gpio = 15, .active_low = 1},
41        { .name = "rdc321x:usb0", .gpio = 0, .active_low = 1},
42        { .name = "rdc321x:usb1", .gpio = 1, .active_low = 1},
43};
44
45static struct gpio_button sitecom_btns[] = {
46        {
47                .gpio = 6,
48                .code = BTN_0,
49                .desc = "Reset",
50                .active_low = 1,
51        }
52};
53
54static int __init parse_sitecom_partitions(struct mtd_info *master, struct mtd_partition **pparts, unsigned long plat_data)
55{
56        struct image_header header;
57        int res;
58        size_t len;
59        struct mtd_partition *rdc_flash_parts;
60        struct rdc_platform_data *pdata = (struct rdc_platform_data *) plat_data;
61       
62        if (master->size != 0x400000) //4MB
63                return -ENOSYS;
64
65        res =  master->read(master, 0x8000, sizeof(header), &len, (char *)&header);
66        if (res)
67                return res;
68
69        if (strncmp(header.magic, "CSYS", 4) || strncmp(header.magic2, "WRRM", 4))
70                return -ENOSYS;
71       
72        rdc_flash_parts = kzalloc(sizeof(struct mtd_partition) * 5, GFP_KERNEL);
73       
74        rdc_flash_parts[0].name = "firmware";
75        rdc_flash_parts[0].offset = 0x8000;
76        rdc_flash_parts[0].size = 0x3F0000;
77        rdc_flash_parts[1].name = "config";
78        rdc_flash_parts[1].offset = 0;
79        rdc_flash_parts[1].size = 0x8000;
80        rdc_flash_parts[2].name = "kernel";
81        rdc_flash_parts[2].offset = 0x8014;
82        rdc_flash_parts[2].size = header.kernel_length;
83        rdc_flash_parts[3].name = "rootfs";
84        rdc_flash_parts[3].offset = 0x8014 + header.kernel_length;
85        rdc_flash_parts[3].size = 0x3F0000 - rdc_flash_parts[3].offset;
86        rdc_flash_parts[4].name = "bootloader";
87        rdc_flash_parts[4].offset = 0x3F0000;
88        rdc_flash_parts[4].size = 0x10000;
89
90        *pparts = rdc_flash_parts;
91       
92        pdata->led_data.num_leds = ARRAY_SIZE(sitecom_leds);
93        pdata->led_data.leds = sitecom_leds;
94        pdata->button_data.nbuttons = ARRAY_SIZE(sitecom_btns);
95        pdata->button_data.buttons = sitecom_btns;
96       
97        return 5;
98}
99
100struct mtd_part_parser __initdata sitecom_parser = {
101        .owner = THIS_MODULE,
102        .parse_fn = parse_sitecom_partitions,
103        .name = "Sitecom",
104};
105
106static int __init sitecom_setup(void)
107{
108        return register_mtd_parser(&sitecom_parser);
109}
110
111arch_initcall(sitecom_setup);
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