summaryrefslogtreecommitdiffstats
path: root/target/linux/rdc/files-2.6.30/arch/x86/mach-rdc321x/platform.c
blob: e319c02b33c7d829b5718d871429ea49fbe4ff31 (plain)
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
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
/*
 *  Generic RDC321x platform devices
 *
 *  Copyright (C) 2007-2009 OpenWrt.org
 *  Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>
 *  Copyright (C) 2008-2009 Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
 *
 *  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 Street, Fifth Floor,
 *  Boston, MA  02110-1301, USA.
 *
 */

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/version.h>
#include <linux/leds.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/mtd/map.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/physmap.h>
#include <linux/root_dev.h>

#include <asm/rdc321x_gpio.h>

/* Flash */
#ifdef CONFIG_MTD_R8610
#define CONFIG_MTD_RDC3210 1
#elif defined CONFIG_MTD_RDC3210
static struct resource rdc_flash_resource[] = {
	[0] = {
		.start = (u32)-CONFIG_MTD_RDC3210_SIZE,
		.end = (u32)-1,
		.flags = IORESOURCE_MEM,
	},
};

static struct platform_device rdc_flash_device = {
	.name = "rdc321x-flash",
	.id = -1,
	.num_resources = ARRAY_SIZE(rdc_flash_resource),
	.resource = rdc_flash_resource,
};
#else
static struct mtd_partition rdc_flash_parts[15];

static struct resource rdc_flash_resource = {
	.end = (u32)-1,
	.flags = IORESOURCE_MEM,
};

static struct physmap_flash_data rdc_flash_data = {
	.parts = rdc_flash_parts,
};

static struct platform_device rdc_flash_device = {
	.name = "physmap-flash",
	.id = -1,
	.resource = &rdc_flash_resource,
	.num_resources = 1,
	.dev.platform_data = &rdc_flash_data,
};
#endif

/* LEDS */
static struct gpio_led default_leds[] = {
	{ .name = "rdc321x:dmz", .gpio = 1, },
};

static struct gpio_led_platform_data rdc321x_led_data = {
	.num_leds = ARRAY_SIZE(default_leds),
	.leds = default_leds,
};

static struct platform_device rdc321x_leds = {
	.name = "leds-gpio",
	.id = -1,
	.dev = {
		.platform_data = &rdc321x_led_data,
	}
};

/* Watchdog */
static struct platform_device rdc321x_wdt = {
	.name = "rdc321x-wdt",
	.id = -1,
	.num_resources = 0,
};

/* Button */
static struct gpio_keys_button rdc321x_gpio_btn[] = {
	{
		.gpio = 0,
		.code = BTN_0,
		.desc = "Reset",
		.active_low = 1,
	}
};

static struct gpio_keys_platform_data rdc321x_gpio_btn_data = {
	.buttons = rdc321x_gpio_btn,
	.nbuttons = ARRAY_SIZE(rdc321x_gpio_btn),
};

static struct platform_device rdc321x_button = {
	.name = "gpio-keys",
	.id = -1,
	.dev = {
		.platform_data = &rdc321x_gpio_btn_data,
	}
};

static struct platform_device *rdc321x_devs[] = {
	&rdc_flash_device,
	&rdc321x_leds,
	&rdc321x_wdt,
	&rdc321x_button,
};

static int probe_flash_start(struct map_info *the_map)
{
	struct mtd_info *res;

	the_map->virt = ioremap(the_map->phys, the_map->size);
	if (the_map->virt == NULL)
		return 1;
	for (the_map->bankwidth = 32; the_map->bankwidth; the_map->bankwidth
			>>= 1) {
		res = do_map_probe("cfi_probe", the_map);
		if (res == NULL)
			res = do_map_probe("jedec_probe", the_map);
		if (res != NULL)
			break;
	}
	iounmap(the_map->virt);
	if (res != NULL)
		the_map->phys = (u32)-(s32)(the_map->size = res->size);
	return res == NULL;
}

static int __init rdc_board_setup(void)
{
#ifndef CONFIG_MTD_RDC3210
	struct map_info rdc_map_info;
	u32 the_header[8];

	ROOT_DEV = 0;
	rdc_map_info.name = rdc_flash_device.name;
	rdc_map_info.phys = 0xff000000;
	rdc_map_info.size = 0x1000000;
	rdc_map_info.bankwidth = 2;
	rdc_map_info.set_vpp = NULL;
	simple_map_init(&rdc_map_info);
	while (probe_flash_start(&rdc_map_info)) {
		rdc_map_info.phys++;
		if (--rdc_map_info.size)
			panic("Could not find start of flash!");
	}
	rdc_flash_resource.start = rdc_map_info.phys;
	rdc_flash_data.width = rdc_map_info.bankwidth;
	rdc_map_info.virt = ioremap_nocache(rdc_map_info.phys, 0x10);
	if (rdc_map_info.virt == NULL)
		panic("Could not ioremap to read device magic!");
	the_header[0] = ((u32 *)rdc_map_info.virt)[0];
	the_header[1] = ((u32 *)rdc_map_info.virt)[1];
	the_header[2] = ((u32 *)rdc_map_info.virt)[2];
	the_header[3] = ((u32 *)rdc_map_info.virt)[3];
	iounmap(rdc_map_info.virt);
	rdc_map_info.virt = ioremap_nocache(rdc_map_info.phys + 0x8000, 0x10);
	if (rdc_map_info.virt == NULL)
		panic("Could not ioremap to read device magic!");
	the_header[4] = ((u32 *)rdc_map_info.virt)[0];
	the_header[5] = ((u32 *)rdc_map_info.virt)[1];
	the_header[6] = ((u32 *)rdc_map_info.virt)[2];
	the_header[7] = ((u32 *)rdc_map_info.virt)[3];
	iounmap(rdc_map_info.virt);
	if (!memcmp(the_header, "GMTK", 4)) {	/* Gemtek */
		/* TODO */
	} else if (!memcmp(the_header + 4, "CSYS", 4)) {	/* Sitecom */
		rdc_flash_parts[0].name = "system";
		rdc_flash_parts[0].offset = 0;
		rdc_flash_parts[0].size = rdc_map_info.size - 0x10000;
		rdc_flash_parts[1].name = "config";
		rdc_flash_parts[1].offset = 0;
		rdc_flash_parts[1].size = 0x8000;
		rdc_flash_parts[2].name = "magic";
		rdc_flash_parts[2].offset = 0x8000;
		rdc_flash_parts[2].size = 0x14;
		rdc_flash_parts[3].name = "kernel";
		rdc_flash_parts[3].offset = 0x8014;
		rdc_flash_parts[3].size = the_header[5];
		rdc_flash_parts[4].name = "rootfs";
		rdc_flash_parts[4].offset = 0x8014 + the_header[5];
		rdc_flash_parts[4].size = rdc_flash_parts[0].size - rdc_flash_parts[4].offset;
		rdc_flash_parts[5].name = "bootloader";
		rdc_flash_parts[5].offset = rdc_flash_parts[0].size;
		rdc_flash_parts[5].size = 0x10000;
		rdc_flash_data.nr_parts = 6;
	} else if (!memcmp(((u8 *)the_header) + 14, "Li", 2)) {	/* AMIT */
		rdc_flash_parts[0].name = "kernel_parthdr";
		rdc_flash_parts[0].offset = 0;
		rdc_flash_parts[0].size = 0x10;
		rdc_flash_parts[1].name = "kernel";
		rdc_flash_parts[1].offset = 0x10;
		rdc_flash_parts[1].size = 0xffff0;
		rdc_flash_parts[2].name = "rootfs_parthdr";
		rdc_flash_parts[2].offset = 0x100000;
		rdc_flash_parts[2].size = 0x10;
		rdc_flash_parts[3].name = "rootfs";
		rdc_flash_parts[3].offset = 0x100010;
		rdc_flash_parts[3].size = rdc_map_info.size - 0x160010;
		rdc_flash_parts[4].name = "config_parthdr";
		rdc_flash_parts[4].offset = rdc_map_info.size - 0x60000;
		rdc_flash_parts[4].size = 0x10;
		rdc_flash_parts[5].name = "config";
		rdc_flash_parts[5].offset = rdc_map_info.size - 0x5fff0;
		rdc_flash_parts[5].size = 0xfff0;
		rdc_flash_parts[6].name = "recoveryfs_parthdr";
		rdc_flash_parts[6].offset = rdc_map_info.size - 0x50000;
		rdc_flash_parts[6].size = 0x10;
		rdc_flash_parts[7].name = "recoveryfs";
		rdc_flash_parts[7].offset = rdc_map_info.size - 0x4fff0;
		rdc_flash_parts[7].size = 0x3fff0;
		rdc_flash_parts[8].name = "recovery_parthdr";
		rdc_flash_parts[8].offset = rdc_map_info.size - 0x10000;
		rdc_flash_parts[8].size = 0x10;
		rdc_flash_parts[9].name = "recovery";
		rdc_flash_parts[9].offset = rdc_map_info.size - 0xfff0;
		rdc_flash_parts[9].size = 0x7ff0;
		rdc_flash_parts[10].name = "productinfo_parthdr";
		rdc_flash_parts[10].offset = rdc_map_info.size - 0x8000;
		rdc_flash_parts[10].size = 0x10;
		rdc_flash_parts[11].name = "productinfo";
		rdc_flash_parts[11].offset = rdc_map_info.size - 0x7ff0;
		rdc_flash_parts[11].size = 0x1ff0;
		rdc_flash_parts[12].name = "bootloader_parthdr";
		rdc_flash_parts[12].offset = rdc_map_info.size - 0x6000;
		rdc_flash_parts[12].size = 0x10;
		rdc_flash_parts[13].name = "bootloader";
		rdc_flash_parts[13].offset = rdc_map_info.size - 0x5ff0;
		rdc_flash_parts[13].size = 0x5ff0;
		rdc_flash_parts[14].name = "everything";
		rdc_flash_parts[14].offset = 0;
		rdc_flash_parts[14].size = rdc_map_info.size;
		rdc_flash_data.nr_parts = 15;
	} else {	/* ZyXEL */
		rdc_flash_parts[0].name = "kernel";
		rdc_flash_parts[0].offset = 0;
		rdc_flash_parts[0].size = 0x100000;
		rdc_flash_parts[1].name = "rootfs";
		rdc_flash_parts[1].offset = 0x100000;
		rdc_flash_parts[1].size = rdc_map_info.size - 0x140000;
		rdc_flash_parts[2].name = "linux";
		rdc_flash_parts[2].offset = 0;
		rdc_flash_parts[2].size = rdc_map_info.size - 0x40000;
		rdc_flash_parts[3].name = "config";
		rdc_flash_parts[3].offset = rdc_map_info.size - 0x40000;
		rdc_flash_parts[3].size = 0x10000;
		rdc_flash_parts[4].name = "productinfo";
		rdc_flash_parts[4].offset = rdc_map_info.size - 0x30000;
		rdc_flash_parts[4].size = 0x10000;
		rdc_flash_parts[5].name = "bootloader";
		rdc_flash_parts[5].offset = rdc_map_info.size - 0x20000;
		rdc_flash_parts[5].size = 0x20000;
		rdc_flash_data.nr_parts = 6;
	}
#endif
	return platform_add_devices(rdc321x_devs, ARRAY_SIZE(rdc321x_devs));
}

#ifdef CONFIG_MTD_RDC3210
arch_initcall(rdc_board_setup);
#else
late_initcall(rdc_board_setup);
#endif