summaryrefslogtreecommitdiff
path: root/arch/arm/mach-omap2/board-cm-t35.c
blob: 22c45290db634b3c607007867cf36a3893ccd2ce (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
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
/*
 * board-cm-t35.c (CompuLab CM-T35 module)
 *
 * Copyright (C) 2009 CompuLab, Ltd.
 * Author: Mike Rapoport <mike@compulab.co.il>
 *
 * 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/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/input/matrix_keypad.h>
#include <linux/delay.h>
#include <linux/gpio.h>

#include <linux/i2c/at24.h>
#include <linux/i2c/twl4030.h>
#include <linux/regulator/machine.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 <plat/mux.h>
#include <plat/nand.h>
#include <plat/gpmc.h>
#include <plat/usb.h>

#include <mach/hardware.h>

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

#define CM_T35_GPIO_PENDOWN	57

#define CM_T35_SMSC911X_CS	5
#define CM_T35_SMSC911X_GPIO	163
#define SB_T35_SMSC911X_CS	4
#define SB_T35_SMSC911X_GPIO	65

#define NAND_BLOCK_SIZE		SZ_128K
#define GPMC_CS0_BASE		0x60
#define GPMC_CS0_BASE_ADDR	(OMAP34XX_GPMC_VIRT + GPMC_CS0_BASE)

#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
#include <linux/smsc911x.h>

static struct smsc911x_platform_config cm_t35_smsc911x_config = {
	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
	.irq_type	= SMSC911X_IRQ_TYPE_OPEN_DRAIN,
	.flags		= SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
	.phy_interface	= PHY_INTERFACE_MODE_MII,
};

static struct resource cm_t35_smsc911x_resources[] = {
	{
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= OMAP_GPIO_IRQ(CM_T35_SMSC911X_GPIO),
		.end	= OMAP_GPIO_IRQ(CM_T35_SMSC911X_GPIO),
		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
	},
};

static struct platform_device cm_t35_smsc911x_device = {
	.name		= "smsc911x",
	.id		= 0,
	.num_resources	= ARRAY_SIZE(cm_t35_smsc911x_resources),
	.resource	= cm_t35_smsc911x_resources,
	.dev		= {
		.platform_data = &cm_t35_smsc911x_config,
	},
};

static struct resource sb_t35_smsc911x_resources[] = {
	{
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= OMAP_GPIO_IRQ(SB_T35_SMSC911X_GPIO),
		.end	= OMAP_GPIO_IRQ(SB_T35_SMSC911X_GPIO),
		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
	},
};

static struct platform_device sb_t35_smsc911x_device = {
	.name		= "smsc911x",
	.id		= 1,
	.num_resources	= ARRAY_SIZE(sb_t35_smsc911x_resources),
	.resource	= sb_t35_smsc911x_resources,
	.dev		= {
		.platform_data = &cm_t35_smsc911x_config,
	},
};

static void __init cm_t35_init_smsc911x(struct platform_device *dev,
					int cs, int irq_gpio)
{
	unsigned long cs_mem_base;

	if (gpmc_cs_request(cs, SZ_16M, &cs_mem_base) < 0) {
		pr_err("CM-T35: Failed request for GPMC mem for smsc911x\n");
		return;
	}

	dev->resource[0].start = cs_mem_base + 0x0;
	dev->resource[0].end   = cs_mem_base + 0xff;

	if ((gpio_request(irq_gpio, "ETH IRQ") == 0) &&
	    (gpio_direction_input(irq_gpio) == 0)) {
		gpio_export(irq_gpio, 0);
	} else {
		pr_err("CM-T35: could not obtain gpio for SMSC911X IRQ\n");
		return;
	}

	platform_device_register(dev);
}

static void __init cm_t35_init_ethernet(void)
{
	cm_t35_init_smsc911x(&cm_t35_smsc911x_device,
			     CM_T35_SMSC911X_CS, CM_T35_SMSC911X_GPIO);
	cm_t35_init_smsc911x(&sb_t35_smsc911x_device,
			     SB_T35_SMSC911X_CS, SB_T35_SMSC911X_GPIO);
}
#else
static inline void __init cm_t35_init_ethernet(void) { return; }
#endif

#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
#include <linux/leds.h>

static struct gpio_led cm_t35_leds[] = {
	[0] = {
		.gpio			= 186,
		.name			= "cm-t35:green",
		.default_trigger	= "heartbeat",
		.active_low		= 0,
	},
};

static struct gpio_led_platform_data cm_t35_led_pdata = {
	.num_leds	= ARRAY_SIZE(cm_t35_leds),
	.leds		= cm_t35_leds,
};

static struct platform_device cm_t35_led_device = {
	.name		= "leds-gpio",
	.id		= -1,
	.dev		= {
		.platform_data	= &cm_t35_led_pdata,
	},
};

static void __init cm_t35_init_led(void)
{
	platform_device_register(&cm_t35_led_device);
}
#else
static inline void cm_t35_init_led(void) {}
#endif

#if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>

static struct mtd_partition cm_t35_nand_partitions[] = {
	{
		.name           = "xloader",
		.offset         = 0,			/* Offset = 0x00000 */
		.size           = 4 * NAND_BLOCK_SIZE,
		.mask_flags     = MTD_WRITEABLE
	},
	{
		.name           = "uboot",
		.offset         = MTDPART_OFS_APPEND,	/* Offset = 0x80000 */
		.size           = 15 * NAND_BLOCK_SIZE,
	},
	{
		.name           = "uboot environment",
		.offset         = MTDPART_OFS_APPEND,	/* Offset = 0x260000 */
		.size           = 2 * NAND_BLOCK_SIZE,
	},
	{
		.name           = "linux",
		.offset         = MTDPART_OFS_APPEND,	/* Offset = 0x280000 */
		.size           = 32 * NAND_BLOCK_SIZE,
	},
	{
		.name           = "rootfs",
		.offset         = MTDPART_OFS_APPEND,	/* Offset = 0x680000 */
		.size           = MTDPART_SIZ_FULL,
	},
};

static struct omap_nand_platform_data cm_t35_nand_data = {
	.parts			= cm_t35_nand_partitions,
	.nr_parts		= ARRAY_SIZE(cm_t35_nand_partitions),
	.dma_channel		= -1,	/* disable DMA in OMAP NAND driver */
	.cs			= 0,
	.gpmc_cs_baseaddr	= (void __iomem *)GPMC_CS0_BASE_ADDR,
	.gpmc_baseaddr		= (void __iomem *)OMAP34XX_GPMC_VIRT,

};

static struct resource cm_t35_nand_resource = {
	.flags		= IORESOURCE_MEM,
};

static struct platform_device cm_t35_nand_device = {
	.name		= "omap2-nand",
	.id		= -1,
	.num_resources	= 1,
	.resource	= &cm_t35_nand_resource,
	.dev		= {
		.platform_data	= &cm_t35_nand_data,
	},
};

static void __init cm_t35_init_nand(void)
{
	if (platform_device_register(&cm_t35_nand_device) < 0)
		pr_err("CM-T35: Unable to register NAND device\n");
}
#else
static inline void cm_t35_init_nand(void) {}
#endif

#if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
	defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>

#include <plat/mcspi.h>

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

static int ads7846_get_pendown_state(void)
{
	return !gpio_get_value(CM_T35_GPIO_PENDOWN);
}

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 spi_board_info cm_t35_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(CM_T35_GPIO_PENDOWN),
		.platform_data		= &ads7846_config,
	},
};

static void __init cm_t35_init_ads7846(void)
{
	if ((gpio_request(CM_T35_GPIO_PENDOWN, "ADS7846_PENDOWN") == 0) &&
	    (gpio_direction_input(CM_T35_GPIO_PENDOWN) == 0)) {
		gpio_export(CM_T35_GPIO_PENDOWN, 0);
	} else {
		pr_err("CM-T35: could not obtain gpio for ADS7846_PENDOWN\n");
		return;
	}

	spi_register_board_info(cm_t35_spi_board_info,
				ARRAY_SIZE(cm_t35_spi_board_info));
}
#else
static inline void cm_t35_init_ads7846(void) {}
#endif

static struct regulator_consumer_supply cm_t35_vmmc1_supply = {
	.supply			= "vmmc",
};

static struct regulator_consumer_supply cm_t35_vsim_supply = {
	.supply			= "vmmc_aux",
};

/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
static struct regulator_init_data cm_t35_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	= &cm_t35_vmmc1_supply,
};

/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
static struct regulator_init_data cm_t35_vsim = {
	.constraints = {
		.min_uV			= 1800000,
		.max_uV			= 3000000,
		.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	= &cm_t35_vsim_supply,
};

static struct twl4030_usb_data cm_t35_usb_data = {
	.usb_mode	= T2_USB_MODE_ULPI,
};

static int cm_t35_keymap[] = {
	KEY(0, 0, KEY_A),	KEY(0, 1, KEY_B),	KEY(0, 2, KEY_LEFT),
	KEY(1, 0, KEY_UP),	KEY(1, 1, KEY_ENTER),	KEY(1, 2, KEY_DOWN),
	KEY(2, 0, KEY_RIGHT),	KEY(2, 1, KEY_C),	KEY(2, 2, KEY_D),
};

static struct matrix_keymap_data cm_t35_keymap_data = {
	.keymap			= cm_t35_keymap,
	.keymap_size		= ARRAY_SIZE(cm_t35_keymap),
};

static struct twl4030_keypad_data cm_t35_kp_data = {
	.keymap_data	= &cm_t35_keymap_data,
	.rows		= 3,
	.cols		= 3,
	.rep		= 1,
};

static struct twl4030_hsmmc_info mmc[] = {
	{
		.mmc		= 1,
		.wires		= 4,
		.gpio_cd	= -EINVAL,
		.gpio_wp	= -EINVAL,

	},
	{
		.mmc		= 2,
		.wires		= 4,
		.transceiver	= 1,
		.gpio_cd	= -EINVAL,
		.gpio_wp	= -EINVAL,
		.ocr_mask	= 0x00100000,	/* 3.3V */
	},
	{}	/* Terminator */
};

static struct ehci_hcd_omap_platform_data ehci_pdata = {
	.port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
	.port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
	.port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,

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

static int cm_t35_twl_gpio_setup(struct device *dev, unsigned gpio,
				 unsigned ngpio)
{
	int wlan_rst = gpio + 2;

	if ((gpio_request(wlan_rst, "WLAN RST") == 0) &&
	    (gpio_direction_output(wlan_rst, 1) == 0)) {
		gpio_export(wlan_rst, 0);

		udelay(10);
		gpio_set_value(wlan_rst, 0);
		udelay(10);
		gpio_set_value(wlan_rst, 1);
	} else {
		pr_err("CM-T35: could not obtain gpio for WiFi reset\n");
	}

	/* gpio + 0 is "mmc0_cd" (input/IRQ) */
	mmc[0].gpio_cd = gpio + 0;
	twl4030_mmc_init(mmc);

	/* link regulators to MMC adapters */
	cm_t35_vmmc1_supply.dev = mmc[0].dev;
	cm_t35_vsim_supply.dev = mmc[0].dev;

	/* setup USB with proper PHY reset GPIOs */
	ehci_pdata.reset_gpio_port[0] = gpio + 6;
	ehci_pdata.reset_gpio_port[1] = gpio + 7;

	usb_ehci_init(&ehci_pdata);

	return 0;
}

static struct twl4030_gpio_platform_data cm_t35_gpio_data = {
	.gpio_base	= OMAP_MAX_GPIO_LINES,
	.irq_base	= TWL4030_GPIO_IRQ_BASE,
	.irq_end	= TWL4030_GPIO_IRQ_END,
	.setup          = cm_t35_twl_gpio_setup,
};

static struct twl4030_platform_data cm_t35_twldata = {
	.irq_base	= TWL4030_IRQ_BASE,
	.irq_end	= TWL4030_IRQ_END,

	/* platform_data for children goes here */
	.keypad		= &cm_t35_kp_data,
	.usb		= &cm_t35_usb_data,
	.gpio		= &cm_t35_gpio_data,
	.vmmc1		= &cm_t35_vmmc1,
	.vsim		= &cm_t35_vsim,
};

static struct i2c_board_info __initdata cm_t35_i2c_boardinfo[] = {
	{
		I2C_BOARD_INFO("tps65930", 0x48),
		.flags		= I2C_CLIENT_WAKE,
		.irq		= INT_34XX_SYS_NIRQ,
		.platform_data	= &cm_t35_twldata,
	},
};

static void __init cm_t35_init_i2c(void)
{
	omap_register_i2c_bus(1, 2600, cm_t35_i2c_boardinfo,
			      ARRAY_SIZE(cm_t35_i2c_boardinfo));
}

static struct omap_board_config_kernel cm_t35_config[] __initdata = {
};

static void __init cm_t35_init_irq(void)
{
	omap_board_config = cm_t35_config;
	omap_board_config_size = ARRAY_SIZE(cm_t35_config);

	omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
			     mt46h32m32lf6_sdrc_params);
	omap_init_irq();
	omap_gpio_init();
}

static void __init cm_t35_map_io(void)
{
	omap2_set_globals_343x();
	omap2_map_common_io();
}

static void __init cm_t35_init(void)
{
	omap_serial_init();
	cm_t35_init_i2c();
	cm_t35_init_nand();
	cm_t35_init_ads7846();
	cm_t35_init_ethernet();
	cm_t35_init_led();

	usb_musb_init();

	omap_cfg_reg(AF26_34XX_SYS_NIRQ);
}

MACHINE_START(CM_T35, "Compulab CM-T35")
	.phys_io	= 0x48000000,
	.io_pg_offst	= ((0xd8000000) >> 18) & 0xfffc,
	.boot_params	= 0x80000100,
	.map_io		= cm_t35_map_io,
	.init_irq	= cm_t35_init_irq,
	.init_machine	= cm_t35_init,
	.timer		= &omap_timer,
MACHINE_END