summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-omap2/board-ldp.c
blob: 8495f37d27560afa7d769cba08aa29b5219f2591 (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
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
/*
 * linux/arch/arm/mach-omap2/board-ldp.c
 *
 * Copyright (C) 2008 Texas Instruments Inc.
 * Nishant Kamat <nskamat@ti.com>
 *
 * Modified from mach-omap2/board-3430sdp.c
 *
 * 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.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/input.h>
#include <linux/input/matrix_keypad.h>
#include <linux/gpio_keys.h>
#include <linux/workqueue.h>
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/regulator/machine.h>
#include <linux/i2c/twl.h>
#include <linux/io.h>
#include <linux/smsc911x.h>
#include <linux/mmc/host.h>

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

#include <plat/mcspi.h>
#include <mach/gpio.h>
#include <plat/board.h>
#include <plat/common.h>
#include <plat/gpmc.h>
#include <mach/board-zoom.h>

#include <asm/delay.h>
#include <plat/usb.h>

#include "board-flash.h"
#include "mux.h"
#include "hsmmc.h"
#include "control.h"

#define LDP_SMSC911X_CS		1
#define LDP_SMSC911X_GPIO	152
#define DEBUG_BASE		0x08000000
#define LDP_ETHR_START		DEBUG_BASE

static struct resource ldp_smsc911x_resources[] = {
	[0] = {
		.start	= LDP_ETHR_START,
		.end	= LDP_ETHR_START + SZ_4K,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= 0,
		.end	= 0,
		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
	},
};

static struct smsc911x_platform_config ldp_smsc911x_config = {
	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
	.irq_type	= SMSC911X_IRQ_TYPE_OPEN_DRAIN,
	.flags		= SMSC911X_USE_32BIT,
	.phy_interface	= PHY_INTERFACE_MODE_MII,
};

static struct platform_device ldp_smsc911x_device = {
	.name		= "smsc911x",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(ldp_smsc911x_resources),
	.resource	= ldp_smsc911x_resources,
	.dev		= {
		.platform_data = &ldp_smsc911x_config,
	},
};

static uint32_t board_keymap[] = {
	KEY(0, 0, KEY_1),
	KEY(1, 0, KEY_2),
	KEY(2, 0, KEY_3),
	KEY(0, 1, KEY_4),
	KEY(1, 1, KEY_5),
	KEY(2, 1, KEY_6),
	KEY(3, 1, KEY_F5),
	KEY(0, 2, KEY_7),
	KEY(1, 2, KEY_8),
	KEY(2, 2, KEY_9),
	KEY(3, 2, KEY_F6),
	KEY(0, 3, KEY_F7),
	KEY(1, 3, KEY_0),
	KEY(2, 3, KEY_F8),
	PERSISTENT_KEY(4, 5),
	KEY(4, 4, KEY_VOLUMEUP),
	KEY(5, 5, KEY_VOLUMEDOWN),
	0
};

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

static struct twl4030_keypad_data ldp_kp_twl4030_data = {
	.keymap_data	= &board_map_data,
	.rows		= 6,
	.cols		= 6,
	.rep		= 1,
};

static struct gpio_keys_button ldp_gpio_keys_buttons[] = {
	[0] = {
		.code			= KEY_ENTER,
		.gpio			= 101,
		.desc			= "enter sw",
		.active_low		= 1,
		.debounce_interval	= 30,
	},
	[1] = {
		.code			= KEY_F1,
		.gpio			= 102,
		.desc			= "func 1",
		.active_low		= 1,
		.debounce_interval	= 30,
	},
	[2] = {
		.code			= KEY_F2,
		.gpio			= 103,
		.desc			= "func 2",
		.active_low		= 1,
		.debounce_interval	= 30,
	},
	[3] = {
		.code			= KEY_F3,
		.gpio			= 104,
		.desc			= "func 3",
		.active_low		= 1,
		.debounce_interval 	= 30,
	},
	[4] = {
		.code			= KEY_F4,
		.gpio			= 105,
		.desc			= "func 4",
		.active_low		= 1,
		.debounce_interval	= 30,
	},
	[5] = {
		.code			= KEY_LEFT,
		.gpio			= 106,
		.desc			= "left sw",
		.active_low		= 1,
		.debounce_interval	= 30,
	},
	[6] = {
		.code			= KEY_RIGHT,
		.gpio			= 107,
		.desc			= "right sw",
		.active_low		= 1,
		.debounce_interval	= 30,
	},
	[7] = {
		.code			= KEY_UP,
		.gpio			= 108,
		.desc			= "up sw",
		.active_low		= 1,
		.debounce_interval	= 30,
	},
	[8] = {
		.code			= KEY_DOWN,
		.gpio			= 109,
		.desc			= "down sw",
		.active_low		= 1,
		.debounce_interval	= 30,
	},
};

static struct gpio_keys_platform_data ldp_gpio_keys = {
	.buttons		= ldp_gpio_keys_buttons,
	.nbuttons		= ARRAY_SIZE(ldp_gpio_keys_buttons),
	.rep			= 1,
};

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

static int ts_gpio;

/**
 * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq
 *
 * @return - void. If request gpio fails then Flag KERN_ERR.
 */
static void ads7846_dev_init(void)
{
	if (gpio_request(ts_gpio, "ads7846 irq") < 0) {
		printk(KERN_ERR "can't get ads746 pen down GPIO\n");
		return;
	}

	gpio_direction_input(ts_gpio);
	gpio_set_debounce(ts_gpio, 310);
}

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

static struct ads7846_platform_data tsc2046_config __initdata = {
	.get_pendown_state	= ads7846_get_pendown_state,
	.keep_vref_on		= 1,
};

static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
	.turbo_mode	= 0,
	.single_channel	= 1,	/* 0: slave, 1: master */
};

static struct spi_board_info ldp_spi_board_info[] __initdata = {
	[0] = {
		/*
		 * TSC2046 operates at a max freqency of 2MHz, so
		 * operate slightly below at 1.5MHz
		 */
		.modalias		= "ads7846",
		.bus_num		= 1,
		.chip_select		= 0,
		.max_speed_hz		= 1500000,
		.controller_data	= &tsc2046_mcspi_config,
		.irq			= 0,
		.platform_data		= &tsc2046_config,
	},
};

static inline void __init ldp_init_smsc911x(void)
{
	int eth_cs;
	unsigned long cs_mem_base;
	int eth_gpio = 0;

	eth_cs = LDP_SMSC911X_CS;

	if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
		printk(KERN_ERR "Failed to request GPMC mem for smsc911x\n");
		return;
	}

	ldp_smsc911x_resources[0].start = cs_mem_base + 0x0;
	ldp_smsc911x_resources[0].end   = cs_mem_base + 0xff;
	udelay(100);

	eth_gpio = LDP_SMSC911X_GPIO;

	ldp_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);

	if (gpio_request(eth_gpio, "smsc911x irq") < 0) {
		printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n",
				eth_gpio);
		return;
	}
	gpio_direction_input(eth_gpio);
}

static struct platform_device ldp_lcd_device = {
	.name		= "ldp_lcd",
	.id		= -1,
};

static struct omap_lcd_config ldp_lcd_config __initdata = {
	.ctrl_name	= "internal",
};

static struct omap_board_config_kernel ldp_config[] __initdata = {
	{ OMAP_TAG_LCD,		&ldp_lcd_config },
};

static void __init omap_ldp_init_irq(void)
{
	omap_board_config = ldp_config;
	omap_board_config_size = ARRAY_SIZE(ldp_config);
	omap2_init_common_hw(NULL, NULL);
	omap_init_irq();
	omap_gpio_init();
	ldp_init_smsc911x();
}

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

static struct twl4030_gpio_platform_data ldp_gpio_data = {
	.gpio_base	= OMAP_MAX_GPIO_LINES,
	.irq_base	= TWL4030_GPIO_IRQ_BASE,
	.irq_end	= TWL4030_GPIO_IRQ_END,
};

static struct twl4030_madc_platform_data ldp_madc_data = {
	.irq_line	= 1,
};

static struct regulator_consumer_supply ldp_vmmc1_supply = {
	.supply			= "vmmc",
};

/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
static struct regulator_init_data ldp_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	= &ldp_vmmc1_supply,
};

static struct twl4030_platform_data ldp_twldata = {
	.irq_base	= TWL4030_IRQ_BASE,
	.irq_end	= TWL4030_IRQ_END,

	/* platform_data for children goes here */
	.madc		= &ldp_madc_data,
	.usb		= &ldp_usb_data,
	.vmmc1		= &ldp_vmmc1,
	.gpio		= &ldp_gpio_data,
	.keypad		= &ldp_kp_twl4030_data,
};

static struct i2c_board_info __initdata ldp_i2c_boardinfo[] = {
	{
		I2C_BOARD_INFO("twl4030", 0x48),
		.flags = I2C_CLIENT_WAKE,
		.irq = INT_34XX_SYS_NIRQ,
		.platform_data = &ldp_twldata,
	},
};

static int __init omap_i2c_init(void)
{
	omap_register_i2c_bus(1, 2600, ldp_i2c_boardinfo,
			ARRAY_SIZE(ldp_i2c_boardinfo));
	omap_register_i2c_bus(2, 400, NULL, 0);
	omap_register_i2c_bus(3, 400, NULL, 0);
	return 0;
}

static struct omap2_hsmmc_info mmc[] __initdata = {
	{
		.mmc		= 1,
		.caps		= MMC_CAP_4_BIT_DATA,
		.gpio_cd	= -EINVAL,
		.gpio_wp	= -EINVAL,
	},
	{}	/* Terminator */
};

static struct platform_device *ldp_devices[] __initdata = {
	&ldp_smsc911x_device,
	&ldp_lcd_device,
	&ldp_gpio_keys_device,
};

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

static struct omap_musb_board_data musb_board_data = {
	.interface_type		= MUSB_INTERFACE_ULPI,
	.mode			= MUSB_OTG,
	.power			= 100,
};

static struct mtd_partition ldp_nand_partitions[] = {
	/* All the partition sizes are listed in terms of NAND block size */
	{
		.name		= "X-Loader-NAND",
		.offset		= 0,
		.size		= 4 * (64 * 2048),	/* 512KB, 0x80000 */
		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
	},
	{
		.name		= "U-Boot-NAND",
		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x80000 */
		.size		= 10 * (64 * 2048),	/* 1.25MB, 0x140000 */
		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
	},
	{
		.name		= "Boot Env-NAND",
		.offset		= MTDPART_OFS_APPEND,   /* Offset = 0x1c0000 */
		.size		= 2 * (64 * 2048),	/* 256KB, 0x40000 */
	},
	{
		.name		= "Kernel-NAND",
		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x0200000*/
		.size		= 240 * (64 * 2048),	/* 30M, 0x1E00000 */
	},
	{
		.name		= "File System - NAND",
		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x2000000 */
		.size		= MTDPART_SIZ_FULL,	/* 96MB, 0x6000000 */
	},

};

static void __init omap_ldp_init(void)
{
	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
	omap_i2c_init();
	platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
	ts_gpio = 54;
	ldp_spi_board_info[0].irq = gpio_to_irq(ts_gpio);
	spi_register_board_info(ldp_spi_board_info,
				ARRAY_SIZE(ldp_spi_board_info));
	ads7846_dev_init();
	omap_serial_init();
	usb_musb_init(&musb_board_data);
	board_nand_init(ldp_nand_partitions,
		ARRAY_SIZE(ldp_nand_partitions), ZOOM_NAND_CS);

	omap2_hsmmc_init(mmc);
	/* link regulators to MMC adapters */
	ldp_vmmc1_supply.dev = mmc[0].dev;
}

MACHINE_START(OMAP_LDP, "OMAP LDP board")
	.phys_io	= 0x48000000,
	.io_pg_offst	= ((0xfa000000) >> 18) & 0xfffc,
	.boot_params	= 0x80000100,
	.map_io		= omap3_map_io,
	.reserve	= omap_reserve,
	.init_irq	= omap_ldp_init_irq,
	.init_machine	= omap_ldp_init,
	.timer		= &omap_timer,
MACHINE_END