autofs4 - fix reset pending flag on mount fail
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm / mach-omap2 / board-omap4panda.c
1 /*
2 * Board support file for OMAP4430 based PandaBoard.
3 *
4 * Copyright (C) 2010 Texas Instruments
5 *
6 * Author: David Anders <x0132446@ti.com>
7 *
8 * Based on mach-omap2/board-4430sdp.c
9 *
10 * Author: Santosh Shilimkar <santosh.shilimkar@ti.com>
11 *
12 * Based on mach-omap2/board-3430sdp.c
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License version 2 as
16 * published by the Free Software Foundation.
17 */
18
19 #include <linux/kernel.h>
20 #include <linux/init.h>
21 #include <linux/platform_device.h>
22 #include <linux/clk.h>
23 #include <linux/io.h>
24 #include <linux/leds.h>
25 #include <linux/gpio.h>
26 #include <linux/usb/otg.h>
27 #include <linux/i2c/twl.h>
28 #include <linux/mfd/twl6040.h>
29 #include <linux/regulator/machine.h>
30 #include <linux/regulator/fixed.h>
31 #include <linux/ti_wilink_st.h>
32 #include <linux/wl12xx.h>
33 #include <linux/platform_data/omap-abe-twl6040.h>
34
35 #include <asm/hardware/gic.h>
36 #include <asm/mach-types.h>
37 #include <asm/mach/arch.h>
38 #include <asm/mach/map.h>
39 #include <video/omapdss.h>
40
41 #include "common.h"
42 #include <plat/usb.h>
43 #include <plat/mmc.h>
44 #include <video/omap-panel-tfp410.h>
45
46 #include "soc.h"
47 #include "hsmmc.h"
48 #include "control.h"
49 #include "mux.h"
50 #include "common-board-devices.h"
51
52 #define GPIO_HUB_POWER 1
53 #define GPIO_HUB_NRESET 62
54 #define GPIO_WIFI_PMENA 43
55 #define GPIO_WIFI_IRQ 53
56 #define HDMI_GPIO_CT_CP_HPD 60 /* HPD mode enable/disable */
57 #define HDMI_GPIO_LS_OE 41 /* Level shifter for HDMI */
58 #define HDMI_GPIO_HPD 63 /* Hotplug detect */
59
60 /* wl127x BT, FM, GPS connectivity chip */
61 static struct ti_st_plat_data wilink_platform_data = {
62 .nshutdown_gpio = 46,
63 .dev_name = "/dev/ttyO1",
64 .flow_cntrl = 1,
65 .baud_rate = 3000000,
66 .chip_enable = NULL,
67 .suspend = NULL,
68 .resume = NULL,
69 };
70
71 static struct platform_device wl1271_device = {
72 .name = "kim",
73 .id = -1,
74 .dev = {
75 .platform_data = &wilink_platform_data,
76 },
77 };
78
79 static struct gpio_led gpio_leds[] = {
80 {
81 .name = "pandaboard::status1",
82 .default_trigger = "heartbeat",
83 .gpio = 7,
84 },
85 {
86 .name = "pandaboard::status2",
87 .default_trigger = "mmc0",
88 .gpio = 8,
89 },
90 };
91
92 static struct gpio_led_platform_data gpio_led_info = {
93 .leds = gpio_leds,
94 .num_leds = ARRAY_SIZE(gpio_leds),
95 };
96
97 static struct platform_device leds_gpio = {
98 .name = "leds-gpio",
99 .id = -1,
100 .dev = {
101 .platform_data = &gpio_led_info,
102 },
103 };
104
105 static struct omap_abe_twl6040_data panda_abe_audio_data = {
106 /* Audio out */
107 .has_hs = ABE_TWL6040_LEFT | ABE_TWL6040_RIGHT,
108 /* HandsFree through expansion connector */
109 .has_hf = ABE_TWL6040_LEFT | ABE_TWL6040_RIGHT,
110 /* PandaBoard: FM TX, PandaBoardES: can be connected to audio out */
111 .has_aux = ABE_TWL6040_LEFT | ABE_TWL6040_RIGHT,
112 /* PandaBoard: FM RX, PandaBoardES: audio in */
113 .has_afm = ABE_TWL6040_LEFT | ABE_TWL6040_RIGHT,
114 /* No jack detection. */
115 .jack_detection = 0,
116 /* MCLK input is 38.4MHz */
117 .mclk_freq = 38400000,
118
119 };
120
121 static struct platform_device panda_abe_audio = {
122 .name = "omap-abe-twl6040",
123 .id = -1,
124 .dev = {
125 .platform_data = &panda_abe_audio_data,
126 },
127 };
128
129 static struct platform_device panda_hdmi_audio_codec = {
130 .name = "hdmi-audio-codec",
131 .id = -1,
132 };
133
134 static struct platform_device btwilink_device = {
135 .name = "btwilink",
136 .id = -1,
137 };
138
139 static struct platform_device *panda_devices[] __initdata = {
140 &leds_gpio,
141 &wl1271_device,
142 &panda_abe_audio,
143 &panda_hdmi_audio_codec,
144 &btwilink_device,
145 };
146
147 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
148 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
149 .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
150 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
151 .phy_reset = false,
152 .reset_gpio_port[0] = -EINVAL,
153 .reset_gpio_port[1] = -EINVAL,
154 .reset_gpio_port[2] = -EINVAL
155 };
156
157 static struct gpio panda_ehci_gpios[] __initdata = {
158 { GPIO_HUB_POWER, GPIOF_OUT_INIT_LOW, "hub_power" },
159 { GPIO_HUB_NRESET, GPIOF_OUT_INIT_LOW, "hub_nreset" },
160 };
161
162 static void __init omap4_ehci_init(void)
163 {
164 int ret;
165 struct clk *phy_ref_clk;
166
167 /* FREF_CLK3 provides the 19.2 MHz reference clock to the PHY */
168 phy_ref_clk = clk_get(NULL, "auxclk3_ck");
169 if (IS_ERR(phy_ref_clk)) {
170 pr_err("Cannot request auxclk3\n");
171 return;
172 }
173 clk_set_rate(phy_ref_clk, 19200000);
174 clk_prepare_enable(phy_ref_clk);
175
176 /* disable the power to the usb hub prior to init and reset phy+hub */
177 ret = gpio_request_array(panda_ehci_gpios,
178 ARRAY_SIZE(panda_ehci_gpios));
179 if (ret) {
180 pr_err("Unable to initialize EHCI power/reset\n");
181 return;
182 }
183
184 gpio_export(GPIO_HUB_POWER, 0);
185 gpio_export(GPIO_HUB_NRESET, 0);
186 gpio_set_value(GPIO_HUB_NRESET, 1);
187
188 usbhs_init(&usbhs_bdata);
189
190 /* enable power to hub */
191 gpio_set_value(GPIO_HUB_POWER, 1);
192 }
193
194 static struct omap_musb_board_data musb_board_data = {
195 .interface_type = MUSB_INTERFACE_UTMI,
196 .mode = MUSB_OTG,
197 .power = 100,
198 };
199
200 static struct omap2_hsmmc_info mmc[] = {
201 {
202 .mmc = 1,
203 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
204 .gpio_wp = -EINVAL,
205 .gpio_cd = -EINVAL,
206 },
207 {
208 .name = "wl1271",
209 .mmc = 5,
210 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
211 .gpio_wp = -EINVAL,
212 .gpio_cd = -EINVAL,
213 .ocr_mask = MMC_VDD_165_195,
214 .nonremovable = true,
215 },
216 {} /* Terminator */
217 };
218
219 static struct regulator_consumer_supply omap4_panda_vmmc5_supply[] = {
220 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.4"),
221 };
222
223 static struct regulator_init_data panda_vmmc5 = {
224 .constraints = {
225 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
226 },
227 .num_consumer_supplies = ARRAY_SIZE(omap4_panda_vmmc5_supply),
228 .consumer_supplies = omap4_panda_vmmc5_supply,
229 };
230
231 static struct fixed_voltage_config panda_vwlan = {
232 .supply_name = "vwl1271",
233 .microvolts = 1800000, /* 1.8V */
234 .gpio = GPIO_WIFI_PMENA,
235 .startup_delay = 70000, /* 70msec */
236 .enable_high = 1,
237 .enabled_at_boot = 0,
238 .init_data = &panda_vmmc5,
239 };
240
241 static struct platform_device omap_vwlan_device = {
242 .name = "reg-fixed-voltage",
243 .id = 1,
244 .dev = {
245 .platform_data = &panda_vwlan,
246 },
247 };
248
249 static struct wl12xx_platform_data omap_panda_wlan_data __initdata = {
250 /* PANDA ref clock is 38.4 MHz */
251 .board_ref_clock = 2,
252 };
253
254 static struct twl6040_codec_data twl6040_codec = {
255 /* single-step ramp for headset and handsfree */
256 .hs_left_step = 0x0f,
257 .hs_right_step = 0x0f,
258 .hf_left_step = 0x1d,
259 .hf_right_step = 0x1d,
260 };
261
262 static struct twl6040_platform_data twl6040_data = {
263 .codec = &twl6040_codec,
264 .audpwron_gpio = 127,
265 };
266
267 static struct i2c_board_info __initdata panda_i2c_1_boardinfo[] = {
268 {
269 I2C_BOARD_INFO("twl6040", 0x4b),
270 .irq = 119 + OMAP44XX_IRQ_GIC_START,
271 .platform_data = &twl6040_data,
272 },
273 };
274
275 /* Panda board uses the common PMIC configuration */
276 static struct twl4030_platform_data omap4_panda_twldata;
277
278 /*
279 * Display monitor features are burnt in their EEPROM as EDID data. The EEPROM
280 * is connected as I2C slave device, and can be accessed at address 0x50
281 */
282 static struct i2c_board_info __initdata panda_i2c_eeprom[] = {
283 {
284 I2C_BOARD_INFO("eeprom", 0x50),
285 },
286 };
287
288 static int __init omap4_panda_i2c_init(void)
289 {
290 omap4_pmic_get_config(&omap4_panda_twldata, TWL_COMMON_PDATA_USB,
291 TWL_COMMON_REGULATOR_VDAC |
292 TWL_COMMON_REGULATOR_VAUX2 |
293 TWL_COMMON_REGULATOR_VAUX3 |
294 TWL_COMMON_REGULATOR_VMMC |
295 TWL_COMMON_REGULATOR_VPP |
296 TWL_COMMON_REGULATOR_VANA |
297 TWL_COMMON_REGULATOR_VCXIO |
298 TWL_COMMON_REGULATOR_VUSB |
299 TWL_COMMON_REGULATOR_CLK32KG |
300 TWL_COMMON_REGULATOR_V1V8 |
301 TWL_COMMON_REGULATOR_V2V1);
302 omap4_pmic_init("twl6030", &omap4_panda_twldata, panda_i2c_1_boardinfo,
303 ARRAY_SIZE(panda_i2c_1_boardinfo));
304 omap_register_i2c_bus(2, 400, NULL, 0);
305 /*
306 * Bus 3 is attached to the DVI port where devices like the pico DLP
307 * projector don't work reliably with 400kHz
308 */
309 omap_register_i2c_bus(3, 100, panda_i2c_eeprom,
310 ARRAY_SIZE(panda_i2c_eeprom));
311 omap_register_i2c_bus(4, 400, NULL, 0);
312 return 0;
313 }
314
315 #ifdef CONFIG_OMAP_MUX
316 static struct omap_board_mux board_mux[] __initdata = {
317 /* WLAN IRQ - GPIO 53 */
318 OMAP4_MUX(GPMC_NCS3, OMAP_MUX_MODE3 | OMAP_PIN_INPUT),
319 /* WLAN POWER ENABLE - GPIO 43 */
320 OMAP4_MUX(GPMC_A19, OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT),
321 /* WLAN SDIO: MMC5 CMD */
322 OMAP4_MUX(SDMMC5_CMD, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
323 /* WLAN SDIO: MMC5 CLK */
324 OMAP4_MUX(SDMMC5_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
325 /* WLAN SDIO: MMC5 DAT[0-3] */
326 OMAP4_MUX(SDMMC5_DAT0, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
327 OMAP4_MUX(SDMMC5_DAT1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
328 OMAP4_MUX(SDMMC5_DAT2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
329 OMAP4_MUX(SDMMC5_DAT3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
330 /* gpio 0 - TFP410 PD */
331 OMAP4_MUX(KPD_COL1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE3),
332 /* dispc2_data23 */
333 OMAP4_MUX(USBB2_ULPITLL_STP, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
334 /* dispc2_data22 */
335 OMAP4_MUX(USBB2_ULPITLL_DIR, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
336 /* dispc2_data21 */
337 OMAP4_MUX(USBB2_ULPITLL_NXT, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
338 /* dispc2_data20 */
339 OMAP4_MUX(USBB2_ULPITLL_DAT0, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
340 /* dispc2_data19 */
341 OMAP4_MUX(USBB2_ULPITLL_DAT1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
342 /* dispc2_data18 */
343 OMAP4_MUX(USBB2_ULPITLL_DAT2, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
344 /* dispc2_data15 */
345 OMAP4_MUX(USBB2_ULPITLL_DAT3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
346 /* dispc2_data14 */
347 OMAP4_MUX(USBB2_ULPITLL_DAT4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
348 /* dispc2_data13 */
349 OMAP4_MUX(USBB2_ULPITLL_DAT5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
350 /* dispc2_data12 */
351 OMAP4_MUX(USBB2_ULPITLL_DAT6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
352 /* dispc2_data11 */
353 OMAP4_MUX(USBB2_ULPITLL_DAT7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
354 /* dispc2_data10 */
355 OMAP4_MUX(DPM_EMU3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
356 /* dispc2_data9 */
357 OMAP4_MUX(DPM_EMU4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
358 /* dispc2_data16 */
359 OMAP4_MUX(DPM_EMU5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
360 /* dispc2_data17 */
361 OMAP4_MUX(DPM_EMU6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
362 /* dispc2_hsync */
363 OMAP4_MUX(DPM_EMU7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
364 /* dispc2_pclk */
365 OMAP4_MUX(DPM_EMU8, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
366 /* dispc2_vsync */
367 OMAP4_MUX(DPM_EMU9, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
368 /* dispc2_de */
369 OMAP4_MUX(DPM_EMU10, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
370 /* dispc2_data8 */
371 OMAP4_MUX(DPM_EMU11, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
372 /* dispc2_data7 */
373 OMAP4_MUX(DPM_EMU12, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
374 /* dispc2_data6 */
375 OMAP4_MUX(DPM_EMU13, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
376 /* dispc2_data5 */
377 OMAP4_MUX(DPM_EMU14, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
378 /* dispc2_data4 */
379 OMAP4_MUX(DPM_EMU15, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
380 /* dispc2_data3 */
381 OMAP4_MUX(DPM_EMU16, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
382 /* dispc2_data2 */
383 OMAP4_MUX(DPM_EMU17, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
384 /* dispc2_data1 */
385 OMAP4_MUX(DPM_EMU18, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
386 /* dispc2_data0 */
387 OMAP4_MUX(DPM_EMU19, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
388 /* NIRQ2 for twl6040 */
389 OMAP4_MUX(SYS_NIRQ2, OMAP_MUX_MODE0 |
390 OMAP_PIN_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE),
391 { .reg_offset = OMAP_MUX_TERMINATOR },
392 };
393
394 #else
395 #define board_mux NULL
396 #endif
397
398 /* Display DVI */
399 #define PANDA_DVI_TFP410_POWER_DOWN_GPIO 0
400
401 /* Using generic display panel */
402 static struct tfp410_platform_data omap4_dvi_panel = {
403 .i2c_bus_num = 3,
404 .power_down_gpio = PANDA_DVI_TFP410_POWER_DOWN_GPIO,
405 };
406
407 static struct omap_dss_device omap4_panda_dvi_device = {
408 .type = OMAP_DISPLAY_TYPE_DPI,
409 .name = "dvi",
410 .driver_name = "tfp410",
411 .data = &omap4_dvi_panel,
412 .phy.dpi.data_lines = 24,
413 .reset_gpio = PANDA_DVI_TFP410_POWER_DOWN_GPIO,
414 .channel = OMAP_DSS_CHANNEL_LCD2,
415 };
416
417 static struct gpio panda_hdmi_gpios[] = {
418 { HDMI_GPIO_CT_CP_HPD, GPIOF_OUT_INIT_HIGH, "hdmi_gpio_ct_cp_hpd" },
419 { HDMI_GPIO_LS_OE, GPIOF_OUT_INIT_HIGH, "hdmi_gpio_ls_oe" },
420 { HDMI_GPIO_HPD, GPIOF_DIR_IN, "hdmi_gpio_hpd" },
421 };
422
423 static int omap4_panda_panel_enable_hdmi(struct omap_dss_device *dssdev)
424 {
425 int status;
426
427 status = gpio_request_array(panda_hdmi_gpios,
428 ARRAY_SIZE(panda_hdmi_gpios));
429 if (status)
430 pr_err("Cannot request HDMI GPIOs\n");
431
432 return status;
433 }
434
435 static void omap4_panda_panel_disable_hdmi(struct omap_dss_device *dssdev)
436 {
437 gpio_free_array(panda_hdmi_gpios, ARRAY_SIZE(panda_hdmi_gpios));
438 }
439
440 static struct omap_dss_hdmi_data omap4_panda_hdmi_data = {
441 .hpd_gpio = HDMI_GPIO_HPD,
442 };
443
444 static struct omap_dss_device omap4_panda_hdmi_device = {
445 .name = "hdmi",
446 .driver_name = "hdmi_panel",
447 .type = OMAP_DISPLAY_TYPE_HDMI,
448 .platform_enable = omap4_panda_panel_enable_hdmi,
449 .platform_disable = omap4_panda_panel_disable_hdmi,
450 .channel = OMAP_DSS_CHANNEL_DIGIT,
451 .data = &omap4_panda_hdmi_data,
452 };
453
454 static struct omap_dss_device *omap4_panda_dss_devices[] = {
455 &omap4_panda_dvi_device,
456 &omap4_panda_hdmi_device,
457 };
458
459 static struct omap_dss_board_info omap4_panda_dss_data = {
460 .num_devices = ARRAY_SIZE(omap4_panda_dss_devices),
461 .devices = omap4_panda_dss_devices,
462 .default_device = &omap4_panda_dvi_device,
463 };
464
465 static void __init omap4_panda_display_init(void)
466 {
467
468 omap_display_init(&omap4_panda_dss_data);
469
470 /*
471 * OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and
472 * later have external pull up on the HDMI I2C lines
473 */
474 if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2)
475 omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP);
476 else
477 omap_hdmi_init(0);
478
479 omap_mux_init_gpio(HDMI_GPIO_LS_OE, OMAP_PIN_OUTPUT);
480 omap_mux_init_gpio(HDMI_GPIO_CT_CP_HPD, OMAP_PIN_OUTPUT);
481 omap_mux_init_gpio(HDMI_GPIO_HPD, OMAP_PIN_INPUT_PULLDOWN);
482 }
483
484 static void omap4_panda_init_rev(void)
485 {
486 if (cpu_is_omap443x()) {
487 /* PandaBoard 4430 */
488 /* ASoC audio configuration */
489 panda_abe_audio_data.card_name = "PandaBoard";
490 panda_abe_audio_data.has_hsmic = 1;
491 } else {
492 /* PandaBoard ES */
493 /* ASoC audio configuration */
494 panda_abe_audio_data.card_name = "PandaBoardES";
495 }
496 }
497
498 static void __init omap4_panda_init(void)
499 {
500 int package = OMAP_PACKAGE_CBS;
501 int ret;
502
503 if (omap_rev() == OMAP4430_REV_ES1_0)
504 package = OMAP_PACKAGE_CBL;
505 omap4_mux_init(board_mux, NULL, package);
506
507 omap_panda_wlan_data.irq = gpio_to_irq(GPIO_WIFI_IRQ);
508 ret = wl12xx_set_platform_data(&omap_panda_wlan_data);
509 if (ret)
510 pr_err("error setting wl12xx data: %d\n", ret);
511
512 omap4_panda_init_rev();
513 omap4_panda_i2c_init();
514 platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));
515 platform_device_register(&omap_vwlan_device);
516 omap_serial_init();
517 omap_sdrc_init(NULL, NULL);
518 omap4_twl6030_hsmmc_init(mmc);
519 omap4_ehci_init();
520 usb_musb_init(&musb_board_data);
521 omap4_panda_display_init();
522 }
523
524 MACHINE_START(OMAP4_PANDA, "OMAP4 Panda board")
525 /* Maintainer: David Anders - Texas Instruments Inc */
526 .atag_offset = 0x100,
527 .smp = smp_ops(omap4_smp_ops),
528 .reserve = omap_reserve,
529 .map_io = omap4_map_io,
530 .init_early = omap4430_init_early,
531 .init_irq = gic_init_irq,
532 .handle_irq = gic_handle_irq,
533 .init_machine = omap4_panda_init,
534 .init_late = omap4430_init_late,
535 .timer = &omap4_timer,
536 .restart = omap_prcm_restart,
537 MACHINE_END