summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-omap2/board-omap3pandora.c
blob: ef17cf1ab6d7cc37b132a30d3b443ea4e93f9bf0 (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
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
/*
 * board-omap3pandora.c (Pandora Handheld Console)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * 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 <linux/init.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>

#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/regulator/machine.h>
#include <linux/i2c/twl.h>
#include <linux/leds.h>
#include <linux/input.h>
#include <linux/input/matrix_keypad.h>
#include <linux/gpio_keys.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

#include <plat/board.h>
#include <plat/common.h>
#include <mach/gpio.h>
#include <mach/hardware.h>
#include <plat/mcspi.h>
#include <plat/usb.h>

#include "mux.h"
#include "sdram-micron-mt46h32m32lf-6.h"
#include "mmc-twl4030.h"

#define OMAP3_PANDORA_TS_GPIO		94

/* hardware debounce: (value + 1) * 31us */
#define GPIO_DEBOUNCE_TIME		127

static struct gpio_led pandora_gpio_leds[] = {
	{
		.name			= "pandora::sd1",
		.default_trigger	= "mmc0",
		.gpio			= 128,
	}, {
		.name			= "pandora::sd2",
		.default_trigger	= "mmc1",
		.gpio			= 129,
	}, {
		.name			= "pandora::bluetooth",
		.gpio			= 158,
	}, {
		.name			= "pandora::wifi",
		.gpio			= 159,
	},
};

static struct gpio_led_platform_data pandora_gpio_led_data = {
	.leds		= pandora_gpio_leds,
	.num_leds	= ARRAY_SIZE(pandora_gpio_leds),
};

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

#define GPIO_BUTTON(gpio_num, ev_type, ev_code, act_low, descr)	\
{								\
	.gpio		= gpio_num,				\
	.type		= ev_type,				\
	.code		= ev_code,				\
	.active_low	= act_low,				\
	.desc		= "btn " descr,				\
}

#define GPIO_BUTTON_LOW(gpio_num, event_code, description)	\
	GPIO_BUTTON(gpio_num, EV_KEY, event_code, 1, description)

static struct gpio_keys_button pandora_gpio_keys[] = {
	GPIO_BUTTON_LOW(110,	KEY_UP,		"up"),
	GPIO_BUTTON_LOW(103,	KEY_DOWN,	"down"),
	GPIO_BUTTON_LOW(96,	KEY_LEFT,	"left"),
	GPIO_BUTTON_LOW(98,	KEY_RIGHT,	"right"),
	GPIO_BUTTON_LOW(109,	KEY_KP1,	"game 1"),
	GPIO_BUTTON_LOW(111,	KEY_KP2,	"game 2"),
	GPIO_BUTTON_LOW(106,	KEY_KP3,	"game 3"),
	GPIO_BUTTON_LOW(101,	KEY_KP4,	"game 4"),
	GPIO_BUTTON_LOW(102,	BTN_TL,		"l"),
	GPIO_BUTTON_LOW(97,	BTN_TL2,	"l2"),
	GPIO_BUTTON_LOW(105,	BTN_TR,		"r"),
	GPIO_BUTTON_LOW(107,	BTN_TR2,	"r2"),
	GPIO_BUTTON_LOW(104,	KEY_LEFTCTRL,	"ctrl"),
	GPIO_BUTTON_LOW(99,	KEY_MENU,	"menu"),
	GPIO_BUTTON_LOW(176,	KEY_COFFEE,	"hold"),
	GPIO_BUTTON(100, EV_KEY, KEY_LEFTALT, 0, "alt"),
	GPIO_BUTTON(108, EV_SW, SW_LID, 1, "lid"),
};

static struct gpio_keys_platform_data pandora_gpio_key_info = {
	.buttons	= pandora_gpio_keys,
	.nbuttons	= ARRAY_SIZE(pandora_gpio_keys),
};

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

static void __init pandora_keys_gpio_init(void)
{
	/* set debounce time for GPIO banks 4 and 6 */
	omap_set_gpio_debounce_time(32 * 3, GPIO_DEBOUNCE_TIME);
	omap_set_gpio_debounce_time(32 * 5, GPIO_DEBOUNCE_TIME);
}

static int board_keymap[] = {
	/* row, col, code */
	KEY(0, 0, KEY_9),
	KEY(0, 1, KEY_8),
	KEY(0, 2, KEY_I),
	KEY(0, 3, KEY_J),
	KEY(0, 4, KEY_N),
	KEY(0, 5, KEY_M),
	KEY(1, 0, KEY_0),
	KEY(1, 1, KEY_7),
	KEY(1, 2, KEY_U),
	KEY(1, 3, KEY_H),
	KEY(1, 4, KEY_B),
	KEY(1, 5, KEY_SPACE),
	KEY(2, 0, KEY_BACKSPACE),
	KEY(2, 1, KEY_6),
	KEY(2, 2, KEY_Y),
	KEY(2, 3, KEY_G),
	KEY(2, 4, KEY_V),
	KEY(2, 5, KEY_FN),
	KEY(3, 0, KEY_O),
	KEY(3, 1, KEY_5),
	KEY(3, 2, KEY_T),
	KEY(3, 3, KEY_F),
	KEY(3, 4, KEY_C),
	KEY(4, 0, KEY_P),
	KEY(4, 1, KEY_4),
	KEY(4, 2, KEY_R),
	KEY(4, 3, KEY_D),
	KEY(4, 4, KEY_X),
	KEY(5, 0, KEY_K),
	KEY(5, 1, KEY_3),
	KEY(5, 2, KEY_E),
	KEY(5, 3, KEY_S),
	KEY(5, 4, KEY_Z),
	KEY(6, 0, KEY_L),
	KEY(6, 1, KEY_2),
	KEY(6, 2, KEY_W),
	KEY(6, 3, KEY_A),
	KEY(6, 4, KEY_DOT),
	KEY(7, 0, KEY_ENTER),
	KEY(7, 1, KEY_1),
	KEY(7, 2, KEY_Q),
	KEY(7, 3, KEY_LEFTSHIFT),
	KEY(7, 4, KEY_COMMA),
};

static struct matrix_keymap_data board_map_data = {
	.keymap			= board_keymap,
	.keymap_size		= ARRAY_SIZE(board_keymap),
};

static struct twl4030_keypad_data pandora_kp_data = {
	.keymap_data	= &board_map_data,
	.rows		= 8,
	.cols		= 6,
	.rep		= 1,
};

static struct twl4030_hsmmc_info omap3pandora_mmc[] = {
	{
		.mmc		= 1,
		.wires		= 4,
		.gpio_cd	= -EINVAL,
		.gpio_wp	= 126,
		.ext_clock	= 0,
	},
	{
		.mmc		= 2,
		.wires		= 4,
		.gpio_cd	= -EINVAL,
		.gpio_wp	= 127,
		.ext_clock	= 1,
		.transceiver	= true,
	},
	{
		.mmc		= 3,
		.wires		= 4,
		.gpio_cd	= -EINVAL,
		.gpio_wp	= -EINVAL,
	},
	{}	/* Terminator */
};

static struct regulator_consumer_supply pandora_vmmc1_supply = {
	.supply			= "vmmc",
};

static struct regulator_consumer_supply pandora_vmmc2_supply = {
	.supply			= "vmmc",
};

static int omap3pandora_twl_gpio_setup(struct device *dev,
		unsigned gpio, unsigned ngpio)
{
	/* gpio + {0,1} is "mmc{0,1}_cd" (input/IRQ) */
	omap3pandora_mmc[0].gpio_cd = gpio + 0;
	omap3pandora_mmc[1].gpio_cd = gpio + 1;
	twl4030_mmc_init(omap3pandora_mmc);

	/* link regulators to MMC adapters */
	pandora_vmmc1_supply.dev = omap3pandora_mmc[0].dev;
	pandora_vmmc2_supply.dev = omap3pandora_mmc[1].dev;

	return 0;
}

static struct twl4030_gpio_platform_data omap3pandora_gpio_data = {
	.gpio_base	= OMAP_MAX_GPIO_LINES,
	.irq_base	= TWL4030_GPIO_IRQ_BASE,
	.irq_end	= TWL4030_GPIO_IRQ_END,
	.setup		= omap3pandora_twl_gpio_setup,
};

/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
static struct regulator_init_data pandora_vmmc1 = {
	.constraints = {
		.min_uV			= 1850000,
		.max_uV			= 3150000,
		.valid_modes_mask	= REGULATOR_MODE_NORMAL
					| REGULATOR_MODE_STANDBY,
		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
					| REGULATOR_CHANGE_MODE
					| REGULATOR_CHANGE_STATUS,
	},
	.num_consumer_supplies	= 1,
	.consumer_supplies	= &pandora_vmmc1_supply,
};

/* VMMC2 for MMC2 pins CMD, CLK, DAT0..DAT3 (max 100 mA) */
static struct regulator_init_data pandora_vmmc2 = {
	.constraints = {
		.min_uV			= 1850000,
		.max_uV			= 3150000,
		.valid_modes_mask	= REGULATOR_MODE_NORMAL
					| REGULATOR_MODE_STANDBY,
		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
					| REGULATOR_CHANGE_MODE
					| REGULATOR_CHANGE_STATUS,
	},
	.num_consumer_supplies	= 1,
	.consumer_supplies	= &pandora_vmmc2_supply,
};

static struct twl4030_usb_data omap3pandora_usb_data = {
	.usb_mode	= T2_USB_MODE_ULPI,
};

static struct twl4030_codec_audio_data omap3pandora_audio_data = {
	.audio_mclk = 26000000,
};

static struct twl4030_codec_data omap3pandora_codec_data = {
	.audio_mclk = 26000000,
	.audio = &omap3pandora_audio_data,
};

static struct twl4030_platform_data omap3pandora_twldata = {
	.irq_base	= TWL4030_IRQ_BASE,
	.irq_end	= TWL4030_IRQ_END,
	.gpio		= &omap3pandora_gpio_data,
	.usb		= &omap3pandora_usb_data,
	.codec		= &omap3pandora_codec_data,
	.vmmc1		= &pandora_vmmc1,
	.vmmc2		= &pandora_vmmc2,
	.keypad		= &pandora_kp_data,
};

static struct i2c_board_info __initdata omap3pandora_i2c_boardinfo[] = {
	{
		I2C_BOARD_INFO("tps65950", 0x48),
		.flags = I2C_CLIENT_WAKE,
		.irq = INT_34XX_SYS_NIRQ,
		.platform_data = &omap3pandora_twldata,
	},
};

static int __init omap3pandora_i2c_init(void)
{
	omap_register_i2c_bus(1, 2600, omap3pandora_i2c_boardinfo,
			ARRAY_SIZE(omap3pandora_i2c_boardinfo));
	/* i2c2 pins are not connected */
	omap_register_i2c_bus(3, 100, NULL, 0);
	return 0;
}

static void __init omap3pandora_ads7846_init(void)
{
	int gpio = OMAP3_PANDORA_TS_GPIO;
	int ret;

	ret = gpio_request(gpio, "ads7846_pen_down");
	if (ret < 0) {
		printk(KERN_ERR "Failed to request GPIO %d for "
				"ads7846 pen down IRQ\n", gpio);
		return;
	}

	gpio_direction_input(gpio);
}

static int ads7846_get_pendown_state(void)
{
	return !gpio_get_value(OMAP3_PANDORA_TS_GPIO);
}

static struct ads7846_platform_data ads7846_config = {
	.x_max			= 0x0fff,
	.y_max			= 0x0fff,
	.x_plate_ohms		= 180,
	.pressure_max		= 255,
	.debounce_max		= 10,
	.debounce_tol		= 3,
	.debounce_rep		= 1,
	.get_pendown_state	= ads7846_get_pendown_state,
	.keep_vref_on		= 1,
};

static struct omap2_mcspi_device_config ads7846_mcspi_config = {
	.turbo_mode	= 0,
	.single_channel	= 1,	/* 0: slave, 1: master */
};

static struct spi_board_info omap3pandora_spi_board_info[] __initdata = {
	{
		.modalias		= "ads7846",
		.bus_num		= 1,
		.chip_select		= 0,
		.max_speed_hz		= 1500000,
		.controller_data	= &ads7846_mcspi_config,
		.irq			= OMAP_GPIO_IRQ(OMAP3_PANDORA_TS_GPIO),
		.platform_data		= &ads7846_config,
	}
};

static void __init omap3pandora_init_irq(void)
{
	omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
			     mt46h32m32lf6_sdrc_params);
	omap_init_irq();
	omap_gpio_init();
}

static struct platform_device *omap3pandora_devices[] __initdata = {
	&pandora_leds_gpio,
	&pandora_keys_gpio,
};

static struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {

	.port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
	.port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
	.port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,

	.phy_reset  = true,
	.reset_gpio_port[0]  = 16,
	.reset_gpio_port[1]  = -EINVAL,
	.reset_gpio_port[2]  = -EINVAL
};

#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
	{ .reg_offset = OMAP_MUX_TERMINATOR },
};
#else
#define board_mux	NULL
#endif

static void __init omap3pandora_init(void)
{
	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
	omap3pandora_i2c_init();
	platform_add_devices(omap3pandora_devices,
			ARRAY_SIZE(omap3pandora_devices));
	omap_serial_init();
	spi_register_board_info(omap3pandora_spi_board_info,
			ARRAY_SIZE(omap3pandora_spi_board_info));
	omap3pandora_ads7846_init();
	usb_ehci_init(&ehci_pdata);
	pandora_keys_gpio_init();
	usb_musb_init();

	/* Ensure SDRC pins are mux'd for self-refresh */
	omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
	omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
}

static void __init omap3pandora_map_io(void)
{
	omap2_set_globals_343x();
	omap2_map_common_io();
}

MACHINE_START(OMAP3_PANDORA, "Pandora Handheld Console")
	.phys_io	= 0x48000000,
	.io_pg_offst	= ((0xfa000000) >> 18) & 0xfffc,
	.boot_params	= 0x80000100,
	.map_io		= omap3pandora_map_io,
	.init_irq	= omap3pandora_init_irq,
	.init_machine	= omap3pandora_init,
	.timer		= &omap_timer,
MACHINE_END
OpenPOWER on IntegriCloud