summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-omap2/board-omap4panda.c
blob: e96a2e7ad36f527b81b321ce5f01fe5488c88f5f (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
508
509
510
511
512
513
514
515
516
517
518
/*
 * Board support file for OMAP4430 based PandaBoard.
 *
 * Copyright (C) 2010 Texas Instruments
 *
 * Author: David Anders <x0132446@ti.com>
 *
 * Based on mach-omap2/board-4430sdp.c
 *
 * Author: Santosh Shilimkar <santosh.shilimkar@ti.com>
 *
 * Based on 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/clk.h>
#include <linux/io.h>
#include <linux/leds.h>
#include <linux/gpio.h>
#include <linux/usb/otg.h>
#include <linux/i2c/twl.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/fixed.h>
#include <linux/wl12xx.h>

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

#include <plat/board.h>
#include "common.h"
#include <plat/usb.h>
#include <plat/mmc.h>
#include <video/omap-panel-dvi.h>

#include "hsmmc.h"
#include "control.h"
#include "mux.h"
#include "common-board-devices.h"

#define GPIO_HUB_POWER		1
#define GPIO_HUB_NRESET		62
#define GPIO_WIFI_PMENA		43
#define GPIO_WIFI_IRQ		53
#define HDMI_GPIO_HPD 60 /* Hot plug pin for HDMI */
#define HDMI_GPIO_LS_OE 41 /* Level shifter for HDMI */

/* wl127x BT, FM, GPS connectivity chip */
static int wl1271_gpios[] = {46, -1, -1};
static struct platform_device wl1271_device = {
	.name	= "kim",
	.id	= -1,
	.dev	= {
		.platform_data	= &wl1271_gpios,
	},
};

static struct gpio_led gpio_leds[] = {
	{
		.name			= "pandaboard::status1",
		.default_trigger	= "heartbeat",
		.gpio			= 7,
	},
	{
		.name			= "pandaboard::status2",
		.default_trigger	= "mmc0",
		.gpio			= 8,
	},
};

static struct gpio_led_platform_data gpio_led_info = {
	.leds		= gpio_leds,
	.num_leds	= ARRAY_SIZE(gpio_leds),
};

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

static struct platform_device *panda_devices[] __initdata = {
	&leds_gpio,
	&wl1271_device,
};

static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
	.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
	.port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
	.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
	.phy_reset  = false,
	.reset_gpio_port[0]  = -EINVAL,
	.reset_gpio_port[1]  = -EINVAL,
	.reset_gpio_port[2]  = -EINVAL
};

static struct gpio panda_ehci_gpios[] __initdata = {
	{ GPIO_HUB_POWER,	GPIOF_OUT_INIT_LOW,  "hub_power"  },
	{ GPIO_HUB_NRESET,	GPIOF_OUT_INIT_LOW,  "hub_nreset" },
};

static void __init omap4_ehci_init(void)
{
	int ret;
	struct clk *phy_ref_clk;

	/* FREF_CLK3 provides the 19.2 MHz reference clock to the PHY */
	phy_ref_clk = clk_get(NULL, "auxclk3_ck");
	if (IS_ERR(phy_ref_clk)) {
		pr_err("Cannot request auxclk3\n");
		return;
	}
	clk_set_rate(phy_ref_clk, 19200000);
	clk_enable(phy_ref_clk);

	/* disable the power to the usb hub prior to init and reset phy+hub */
	ret = gpio_request_array(panda_ehci_gpios,
				 ARRAY_SIZE(panda_ehci_gpios));
	if (ret) {
		pr_err("Unable to initialize EHCI power/reset\n");
		return;
	}

	gpio_export(GPIO_HUB_POWER, 0);
	gpio_export(GPIO_HUB_NRESET, 0);
	gpio_set_value(GPIO_HUB_NRESET, 1);

	usbhs_init(&usbhs_bdata);

	/* enable power to hub */
	gpio_set_value(GPIO_HUB_POWER, 1);
}

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

static struct omap2_hsmmc_info mmc[] = {
	{
		.mmc		= 1,
		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
		.gpio_wp	= -EINVAL,
		.gpio_cd	= -EINVAL,
	},
	{
		.name		= "wl1271",
		.mmc		= 5,
		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
		.gpio_wp	= -EINVAL,
		.gpio_cd	= -EINVAL,
		.ocr_mask	= MMC_VDD_165_195,
		.nonremovable	= true,
	},
	{}	/* Terminator */
};

static struct regulator_consumer_supply omap4_panda_vmmc5_supply[] = {
	REGULATOR_SUPPLY("vmmc", "omap_hsmmc.4"),
};

static struct regulator_init_data panda_vmmc5 = {
	.constraints = {
		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
	},
	.num_consumer_supplies = ARRAY_SIZE(omap4_panda_vmmc5_supply),
	.consumer_supplies = omap4_panda_vmmc5_supply,
};

static struct fixed_voltage_config panda_vwlan = {
	.supply_name = "vwl1271",
	.microvolts = 1800000, /* 1.8V */
	.gpio = GPIO_WIFI_PMENA,
	.startup_delay = 70000, /* 70msec */
	.enable_high = 1,
	.enabled_at_boot = 0,
	.init_data = &panda_vmmc5,
};

static struct platform_device omap_vwlan_device = {
	.name		= "reg-fixed-voltage",
	.id		= 1,
	.dev = {
		.platform_data = &panda_vwlan,
	},
};

struct wl12xx_platform_data omap_panda_wlan_data  __initdata = {
	.irq = OMAP_GPIO_IRQ(GPIO_WIFI_IRQ),
	/* PANDA ref clock is 38.4 MHz */
	.board_ref_clock = 2,
};

static int omap4_twl6030_hsmmc_late_init(struct device *dev)
{
	int ret = 0;
	struct platform_device *pdev = container_of(dev,
				struct platform_device, dev);
	struct omap_mmc_platform_data *pdata = dev->platform_data;

	if (!pdata) {
		dev_err(dev, "%s: NULL platform data\n", __func__);
		return -EINVAL;
	}
	/* Setting MMC1 Card detect Irq */
	if (pdev->id == 0) {
		ret = twl6030_mmc_card_detect_config();
		 if (ret)
			dev_err(dev, "%s: Error card detect config(%d)\n",
				__func__, ret);
		 else
			pdata->slots[0].card_detect = twl6030_mmc_card_detect;
	}
	return ret;
}

static __init void omap4_twl6030_hsmmc_set_late_init(struct device *dev)
{
	struct omap_mmc_platform_data *pdata;

	/* dev can be null if CONFIG_MMC_OMAP_HS is not set */
	if (!dev) {
		pr_err("Failed omap4_twl6030_hsmmc_set_late_init\n");
		return;
	}
	pdata = dev->platform_data;

	pdata->init =	omap4_twl6030_hsmmc_late_init;
}

static int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
{
	struct omap2_hsmmc_info *c;

	omap2_hsmmc_init(controllers);
	for (c = controllers; c->mmc; c++)
		omap4_twl6030_hsmmc_set_late_init(c->dev);

	return 0;
}

/* Panda board uses the common PMIC configuration */
static struct twl4030_platform_data omap4_panda_twldata;

/*
 * Display monitor features are burnt in their EEPROM as EDID data. The EEPROM
 * is connected as I2C slave device, and can be accessed at address 0x50
 */
static struct i2c_board_info __initdata panda_i2c_eeprom[] = {
	{
		I2C_BOARD_INFO("eeprom", 0x50),
	},
};

static int __init omap4_panda_i2c_init(void)
{
	omap4_pmic_get_config(&omap4_panda_twldata, TWL_COMMON_PDATA_USB,
			TWL_COMMON_REGULATOR_VDAC |
			TWL_COMMON_REGULATOR_VAUX2 |
			TWL_COMMON_REGULATOR_VAUX3 |
			TWL_COMMON_REGULATOR_VMMC |
			TWL_COMMON_REGULATOR_VPP |
			TWL_COMMON_REGULATOR_VANA |
			TWL_COMMON_REGULATOR_VCXIO |
			TWL_COMMON_REGULATOR_VUSB |
			TWL_COMMON_REGULATOR_CLK32KG);
	omap4_pmic_init("twl6030", &omap4_panda_twldata);
	omap_register_i2c_bus(2, 400, NULL, 0);
	/*
	 * Bus 3 is attached to the DVI port where devices like the pico DLP
	 * projector don't work reliably with 400kHz
	 */
	omap_register_i2c_bus(3, 100, panda_i2c_eeprom,
					ARRAY_SIZE(panda_i2c_eeprom));
	omap_register_i2c_bus(4, 400, NULL, 0);
	return 0;
}

#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
	/* WLAN IRQ - GPIO 53 */
	OMAP4_MUX(GPMC_NCS3, OMAP_MUX_MODE3 | OMAP_PIN_INPUT),
	/* WLAN POWER ENABLE - GPIO 43 */
	OMAP4_MUX(GPMC_A19, OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT),
	/* WLAN SDIO: MMC5 CMD */
	OMAP4_MUX(SDMMC5_CMD, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
	/* WLAN SDIO: MMC5 CLK */
	OMAP4_MUX(SDMMC5_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
	/* WLAN SDIO: MMC5 DAT[0-3] */
	OMAP4_MUX(SDMMC5_DAT0, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
	OMAP4_MUX(SDMMC5_DAT1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
	OMAP4_MUX(SDMMC5_DAT2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
	OMAP4_MUX(SDMMC5_DAT3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
	/* gpio 0 - TFP410 PD */
	OMAP4_MUX(KPD_COL1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE3),
	/* dispc2_data23 */
	OMAP4_MUX(USBB2_ULPITLL_STP, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data22 */
	OMAP4_MUX(USBB2_ULPITLL_DIR, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data21 */
	OMAP4_MUX(USBB2_ULPITLL_NXT, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data20 */
	OMAP4_MUX(USBB2_ULPITLL_DAT0, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data19 */
	OMAP4_MUX(USBB2_ULPITLL_DAT1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data18 */
	OMAP4_MUX(USBB2_ULPITLL_DAT2, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data15 */
	OMAP4_MUX(USBB2_ULPITLL_DAT3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data14 */
	OMAP4_MUX(USBB2_ULPITLL_DAT4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data13 */
	OMAP4_MUX(USBB2_ULPITLL_DAT5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data12 */
	OMAP4_MUX(USBB2_ULPITLL_DAT6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data11 */
	OMAP4_MUX(USBB2_ULPITLL_DAT7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data10 */
	OMAP4_MUX(DPM_EMU3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data9 */
	OMAP4_MUX(DPM_EMU4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data16 */
	OMAP4_MUX(DPM_EMU5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data17 */
	OMAP4_MUX(DPM_EMU6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_hsync */
	OMAP4_MUX(DPM_EMU7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_pclk */
	OMAP4_MUX(DPM_EMU8, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_vsync */
	OMAP4_MUX(DPM_EMU9, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_de */
	OMAP4_MUX(DPM_EMU10, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data8 */
	OMAP4_MUX(DPM_EMU11, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data7 */
	OMAP4_MUX(DPM_EMU12, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data6 */
	OMAP4_MUX(DPM_EMU13, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data5 */
	OMAP4_MUX(DPM_EMU14, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data4 */
	OMAP4_MUX(DPM_EMU15, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data3 */
	OMAP4_MUX(DPM_EMU16, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data2 */
	OMAP4_MUX(DPM_EMU17, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data1 */
	OMAP4_MUX(DPM_EMU18, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data0 */
	OMAP4_MUX(DPM_EMU19, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	{ .reg_offset = OMAP_MUX_TERMINATOR },
};

#else
#define board_mux	NULL
#endif

/* Display DVI */
#define PANDA_DVI_TFP410_POWER_DOWN_GPIO	0

static int omap4_panda_enable_dvi(struct omap_dss_device *dssdev)
{
	gpio_set_value(dssdev->reset_gpio, 1);
	return 0;
}

static void omap4_panda_disable_dvi(struct omap_dss_device *dssdev)
{
	gpio_set_value(dssdev->reset_gpio, 0);
}

/* Using generic display panel */
static struct panel_dvi_platform_data omap4_dvi_panel = {
	.platform_enable	= omap4_panda_enable_dvi,
	.platform_disable	= omap4_panda_disable_dvi,
	.i2c_bus_num = 3,
};

struct omap_dss_device omap4_panda_dvi_device = {
	.type			= OMAP_DISPLAY_TYPE_DPI,
	.name			= "dvi",
	.driver_name		= "dvi",
	.data			= &omap4_dvi_panel,
	.phy.dpi.data_lines	= 24,
	.reset_gpio		= PANDA_DVI_TFP410_POWER_DOWN_GPIO,
	.channel		= OMAP_DSS_CHANNEL_LCD2,
};

int __init omap4_panda_dvi_init(void)
{
	int r;

	/* Requesting TFP410 DVI GPIO and disabling it, at bootup */
	r = gpio_request_one(omap4_panda_dvi_device.reset_gpio,
				GPIOF_OUT_INIT_LOW, "DVI PD");
	if (r)
		pr_err("Failed to get DVI powerdown GPIO\n");

	return r;
}


static void omap4_panda_hdmi_mux_init(void)
{
	/* PAD0_HDMI_HPD_PAD1_HDMI_CEC */
	omap_mux_init_signal("hdmi_hpd",
			OMAP_PIN_INPUT_PULLUP);
	omap_mux_init_signal("hdmi_cec",
			OMAP_PIN_INPUT_PULLUP);
	/* PAD0_HDMI_DDC_SCL_PAD1_HDMI_DDC_SDA */
	omap_mux_init_signal("hdmi_ddc_scl",
			OMAP_PIN_INPUT_PULLUP);
	omap_mux_init_signal("hdmi_ddc_sda",
			OMAP_PIN_INPUT_PULLUP);
}

static struct gpio panda_hdmi_gpios[] = {
	{ HDMI_GPIO_HPD,	GPIOF_OUT_INIT_HIGH, "hdmi_gpio_hpd"   },
	{ HDMI_GPIO_LS_OE,	GPIOF_OUT_INIT_HIGH, "hdmi_gpio_ls_oe" },
};

static int omap4_panda_panel_enable_hdmi(struct omap_dss_device *dssdev)
{
	int status;

	status = gpio_request_array(panda_hdmi_gpios,
				    ARRAY_SIZE(panda_hdmi_gpios));
	if (status)
		pr_err("Cannot request HDMI GPIOs\n");

	return status;
}

static void omap4_panda_panel_disable_hdmi(struct omap_dss_device *dssdev)
{
	gpio_free(HDMI_GPIO_LS_OE);
	gpio_free(HDMI_GPIO_HPD);
}

static struct omap_dss_device  omap4_panda_hdmi_device = {
	.name = "hdmi",
	.driver_name = "hdmi_panel",
	.type = OMAP_DISPLAY_TYPE_HDMI,
	.platform_enable = omap4_panda_panel_enable_hdmi,
	.platform_disable = omap4_panda_panel_disable_hdmi,
	.channel = OMAP_DSS_CHANNEL_DIGIT,
};

static struct omap_dss_device *omap4_panda_dss_devices[] = {
	&omap4_panda_dvi_device,
	&omap4_panda_hdmi_device,
};

static struct omap_dss_board_info omap4_panda_dss_data = {
	.num_devices	= ARRAY_SIZE(omap4_panda_dss_devices),
	.devices	= omap4_panda_dss_devices,
	.default_device	= &omap4_panda_dvi_device,
};

void omap4_panda_display_init(void)
{
	int r;

	r = omap4_panda_dvi_init();
	if (r)
		pr_err("error initializing panda DVI\n");

	omap4_panda_hdmi_mux_init();
	omap_display_init(&omap4_panda_dss_data);
}

static void __init omap4_panda_init(void)
{
	int package = OMAP_PACKAGE_CBS;

	if (omap_rev() == OMAP4430_REV_ES1_0)
		package = OMAP_PACKAGE_CBL;
	omap4_mux_init(board_mux, NULL, package);

	if (wl12xx_set_platform_data(&omap_panda_wlan_data))
		pr_err("error setting wl12xx data\n");

	omap4_panda_i2c_init();
	platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));
	platform_device_register(&omap_vwlan_device);
	omap_serial_init();
	omap_sdrc_init(NULL, NULL);
	omap4_twl6030_hsmmc_init(mmc);
	omap4_ehci_init();
	usb_musb_init(&musb_board_data);
	omap4_panda_display_init();
}

MACHINE_START(OMAP4_PANDA, "OMAP4 Panda board")
	/* Maintainer: David Anders - Texas Instruments Inc */
	.atag_offset	= 0x100,
	.reserve	= omap_reserve,
	.map_io		= omap4_map_io,
	.init_early	= omap4430_init_early,
	.init_irq	= gic_init_irq,
	.handle_irq	= gic_handle_irq,
	.init_machine	= omap4_panda_init,
	.timer		= &omap4_timer,
	.restart	= omap_prcm_restart,
MACHINE_END