aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-kirkwood/board-dnskw.c
blob: 58c2d68f9443a15b2784a069fa5fb07ba4e9d455 (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
/*
 * Copyright 2012 (C), Jamie Lentin <jm@lentin.co.uk>
 *
 * arch/arm/mach-kirkwood/board-dnskw.c
 *
 * D-link DNS-320 & DNS-325 NAS Init for drivers not converted to
 * flattened device tree yet.
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2.  This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/ata_platform.h>
#include <linux/mv643xx_eth.h>
#include <linux/of.h>
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
#include <linux/gpio-fan.h>
#include <linux/leds.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <mach/kirkwood.h>
#include <mach/bridge-regs.h>
#include "common.h"
#include "mpp.h"

static struct mv643xx_eth_platform_data dnskw_ge00_data = {
	.phy_addr	= MV643XX_ETH_PHY_ADDR(8),
};

static struct mv_sata_platform_data dnskw_sata_data = {
	.n_ports	= 2,
};

static unsigned int dnskw_mpp_config[] __initdata = {
	MPP13_UART1_TXD,	/* Custom ... */
	MPP14_UART1_RXD,	/* ... Controller (DNS-320 only) */
	MPP20_SATA1_ACTn,	/* LED: White Right HDD */
	MPP21_SATA0_ACTn,	/* LED: White Left HDD */
	MPP24_GPIO,
	MPP25_GPIO,
	MPP26_GPIO,	/* LED: Power */
	MPP27_GPIO,	/* LED: Red Right HDD */
	MPP28_GPIO,	/* LED: Red Left HDD */
	MPP29_GPIO,	/* LED: Red USB (DNS-325 only) */
	MPP30_GPIO,
	MPP31_GPIO,
	MPP32_GPIO,
	MPP33_GPO,
	MPP34_GPIO,	/* Button: Front power */
	MPP35_GPIO,	/* LED: Red USB (DNS-320 only) */
	MPP36_GPIO,	/* Power: Turn off board */
	MPP37_GPIO,	/* Power: Turn back on after power failure */
	MPP38_GPIO,
	MPP39_GPIO,	/* Power: SATA0 */
	MPP40_GPIO,	/* Power: SATA1 */
	MPP41_GPIO,	/* SATA0 present */
	MPP42_GPIO,	/* SATA1 present */
	MPP43_GPIO,	/* LED: White USB */
	MPP44_GPIO,	/* Fan: Tachometer Pin */
	MPP45_GPIO,	/* Fan: high speed */
	MPP46_GPIO,	/* Fan: low speed */
	MPP47_GPIO,	/* Button: Back unmount */
	MPP48_GPIO,	/* Button: Back reset */
	MPP49_GPIO,	/* Temp Alarm (DNS-325) Pin of U5 (DNS-320) */
	0
};

static struct gpio_led dns325_led_pins[] = {
	{
		.name	= "dns325:white:power",
		.gpio	= 26,
		.active_low = 1,
		.default_trigger = "default-on",
	},
	{
		.name	= "dns325:white:usb",
		.gpio	= 43,
		.active_low = 1,
	},
	{
		.name	= "dns325:red:l_hdd",
		.gpio	= 28,
		.active_low = 1,
	},
	{
		.name	= "dns325:red:r_hdd",
		.gpio	= 27,
		.active_low = 1,
	},
	{
		.name	= "dns325:red:usb",
		.gpio	= 29,
		.active_low = 1,
	},
};

static struct gpio_led_platform_data dns325_led_data = {
	.num_leds	= ARRAY_SIZE(dns325_led_pins),
	.leds		= dns325_led_pins,
};

static struct platform_device dns325_led_device = {
	.name		= "leds-gpio",
	.id		= -1,
	.dev		= {
		.platform_data	= &dns325_led_data,
	},
};

static struct gpio_led dns320_led_pins[] = {
	{
		.name	= "dns320:blue:power",
		.gpio	= 26,
		.active_low = 1,
		.default_trigger = "default-on",
	},
	{
		.name	= "dns320:blue:usb",
		.gpio	= 43,
		.active_low = 1,
	},
	{
		.name	= "dns320:orange:l_hdd",
		.gpio	= 28,
		.active_low = 1,
	},
	{
		.name	= "dns320:orange:r_hdd",
		.gpio	= 27,
		.active_low = 1,
	},
	{
		.name	= "dns320:orange:usb",
		.gpio	= 35,
		.active_low = 1,
	},
};

static struct gpio_led_platform_data dns320_led_data = {
	.num_leds	= ARRAY_SIZE(dns320_led_pins),
	.leds		= dns320_led_pins,
};

static struct platform_device dns320_led_device = {
	.name		= "leds-gpio",
	.id		= -1,
	.dev		= {
		.platform_data	= &dns320_led_data,
	},
};

static struct i2c_board_info dns325_i2c_board_info[] __initdata = {
	{
		I2C_BOARD_INFO("lm75", 0x48),
	},
	/* Something at 0x0c also */
};

static struct gpio_keys_button dnskw_button_pins[] = {
	{
		.code		= KEY_POWER,
		.gpio		= 34,
		.desc		= "Power button",
		.active_low	= 1,
	},
	{
		.code		= KEY_EJECTCD,
		.gpio		= 47,
		.desc		= "USB unmount button",
		.active_low	= 1,
	},
	{
		.code		= KEY_RESTART,
		.gpio		= 48,
		.desc		= "Reset button",
		.active_low	= 1,
	},
};

static struct gpio_keys_platform_data dnskw_button_data = {
	.buttons	= dnskw_button_pins,
	.nbuttons	= ARRAY_SIZE(dnskw_button_pins),
};

static struct platform_device dnskw_button_device = {
	.name		= "gpio-keys",
	.id		= -1,
	.num_resources	= 0,
	.dev		= {
		.platform_data	= &dnskw_button_data,
	}
};

/* Fan: ADDA AD045HB-G73 40mm 6000rpm@5v */
static struct gpio_fan_speed dnskw_fan_speed[] = {
	{    0,  0 },
	{ 3000,	 1 },
	{ 6000,	 2 },
};
static unsigned dnskw_fan_pins[] = {46, 45};

static struct gpio_fan_platform_data dnskw_fan_data = {
	.num_ctrl	= ARRAY_SIZE(dnskw_fan_pins),
	.ctrl		= dnskw_fan_pins,
	.num_speed	= ARRAY_SIZE(dnskw_fan_speed),
	.speed		= dnskw_fan_speed,
};

static struct platform_device dnskw_fan_device = {
	.name	= "gpio-fan",
	.id	= -1,
	.dev	= {
		.platform_data	= &dnskw_fan_data,
	},
};

static void dnskw_power_off(void)
{
	gpio_set_value(36, 1);
}

/* Register any GPIO for output and set the value */
static void __init dnskw_gpio_register(unsigned gpio, char *name, int def)
{
	if (gpio_request(gpio, name) == 0 &&
	    gpio_direction_output(gpio, 0) == 0) {
		gpio_set_value(gpio, def);
		if (gpio_export(gpio, 0) != 0)
			pr_err("dnskw: Failed to export GPIO %s\n", name);
	} else
		pr_err("dnskw: Failed to register %s\n", name);
}

void __init dnskw_init(void)
{
	kirkwood_mpp_conf(dnskw_mpp_config);

	kirkwood_ehci_init();
	kirkwood_ge00_init(&dnskw_ge00_data);
	kirkwood_sata_init(&dnskw_sata_data);
	kirkwood_i2c_init();

	platform_device_register(&dnskw_button_device);
	platform_device_register(&dnskw_fan_device);

	if (of_machine_is_compatible("dlink,dns-325")) {
		i2c_register_board_info(0, dns325_i2c_board_info,
					ARRAY_SIZE(dns325_i2c_board_info));
		platform_device_register(&dns325_led_device);

	} else if (of_machine_is_compatible("dlink,dns-320"))
		platform_device_register(&dns320_led_device);

	/* Register power-off GPIO. */
	if (gpio_request(36, "dnskw:power:off") == 0
	    && gpio_direction_output(36, 0) == 0)
		pm_power_off = dnskw_power_off;
	else
		pr_err("dnskw: failed to configure power-off GPIO\n");

	/* Ensure power is supplied to both HDDs */
	dnskw_gpio_register(39, "dnskw:power:sata0", 1);
	dnskw_gpio_register(40, "dnskw:power:sata1", 1);

	/* Set NAS to turn back on after a power failure */
	dnskw_gpio_register(37, "dnskw:power:recover", 1);
}