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kvm tools, setup: Create private directory
[linux-2.6/next.git] / arch / arm / mach-omap1 / board-htcherald.c
blobba05a51f9408dfe308f66e0cb36a717c3101a745
1 /*
2 * HTC Herald board configuration
3 * Copyright (C) 2009 Cory Maccarrone <darkstar6262@gmail.com>
4 * Copyright (C) 2009 Wing Linux
5 *
6 * Based on the board-htcwizard.c file from the linwizard project:
7 * Copyright (C) 2006 Unai Uribarri
8 * Copyright (C) 2008 linwizard.sourceforge.net
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of the
13 * License, or (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 * 02110-1301, USA.
24 *
25 */
26
27 #include <linux/kernel.h>
28 #include <linux/init.h>
29 #include <linux/platform_device.h>
30 #include <linux/input.h>
31 #include <linux/io.h>
32 #include <linux/gpio.h>
33 #include <linux/gpio_keys.h>
34 #include <linux/i2c.h>
35 #include <linux/i2c-gpio.h>
36 #include <linux/htcpld.h>
37 #include <linux/leds.h>
38 #include <linux/spi/spi.h>
39 #include <linux/spi/ads7846.h>
40
41 #include <asm/mach-types.h>
42 #include <asm/mach/arch.h>
43
44 #include <plat/omap7xx.h>
45 #include <plat/common.h>
46 #include <plat/board.h>
47 #include <plat/keypad.h>
48 #include <plat/usb.h>
49 #include <plat/mmc.h>
50
51 #include <mach/irqs.h>
52
53 #include <linux/delay.h>
54
55 /* LCD register definition */
56 #define OMAP_LCDC_CONTROL (0xfffec000 + 0x00)
57 #define OMAP_LCDC_STATUS (0xfffec000 + 0x10)
58 #define OMAP_DMA_LCD_CCR (0xfffee300 + 0xc2)
59 #define OMAP_DMA_LCD_CTRL (0xfffee300 + 0xc4)
60 #define OMAP_LCDC_CTRL_LCD_EN (1 << 0)
61 #define OMAP_LCDC_STAT_DONE (1 << 0)
62
63 /* GPIO definitions for the power button and keyboard slide switch */
64 #define HTCHERALD_GPIO_POWER 139
65 #define HTCHERALD_GPIO_SLIDE 174
66 #define HTCHERALD_GIRQ_BTNS 141
67
68 /* GPIO definitions for the touchscreen */
69 #define HTCHERALD_GPIO_TS 76
70
71 /* HTCPLD definitions */
72
73 /*
74 * CPLD Logic
75 *
76 * Chip 3 - 0x03
77 *
78 * Function 7 6 5 4 3 2 1 0
79 * ------------------------------------
80 * DPAD light x x x x x x x 1
81 * SoundDev x x x x 1 x x x
82 * Screen white 1 x x x x x x x
83 * MMC power on x x x x x 1 x x
84 * Happy times (n) 0 x x x x 1 x x
85 *
86 * Chip 4 - 0x04
87 *
88 * Function 7 6 5 4 3 2 1 0
89 * ------------------------------------
90 * Keyboard light x x x x x x x 1
91 * LCD Bright (4) x x x x x 1 1 x
92 * LCD Bright (3) x x x x x 0 1 x
93 * LCD Bright (2) x x x x x 1 0 x
94 * LCD Bright (1) x x x x x 0 0 x
95 * LCD Off x x x x 0 x x x
96 * LCD image (fb) 1 x x x x x x x
97 * LCD image (white) 0 x x x x x x x
98 * Caps lock LED x x 1 x x x x x
99 *
100 * Chip 5 - 0x05
101 *
102 * Function 7 6 5 4 3 2 1 0
103 * ------------------------------------
104 * Red (solid) x x x x x 1 x x
105 * Red (flash) x x x x x x 1 x
106 * Green (GSM flash) x x x x 1 x x x
107 * Green (GSM solid) x x x 1 x x x x
108 * Green (wifi flash) x x 1 x x x x x
109 * Blue (bt flash) x 1 x x x x x x
110 * DPAD Int Enable 1 x x x x x x 0
111 *
112 * (Combinations of the above can be made for different colors.)
113 * The direction pad interrupt enable must be set each time the
114 * interrupt is handled.
115 *
116 * Chip 6 - 0x06
117 *
118 * Function 7 6 5 4 3 2 1 0
119 * ------------------------------------
120 * Vibrator x x x x 1 x x x
121 * Alt LED x x x 1 x x x x
122 * Screen white 1 x x x x x x x
123 * Screen white x x 1 x x x x x
124 * Screen white x 0 x x x x x x
125 * Enable kbd dpad x x x x x x 0 x
126 * Happy Times 0 1 0 x x x 0 x
127 */
128
129 /*
130 * HTCPLD GPIO lines start 16 after OMAP_MAX_GPIO_LINES to account
131 * for the 16 MPUIO lines.
132 */
133 #define HTCPLD_GPIO_START_OFFSET (OMAP_MAX_GPIO_LINES + 16)
134 #define HTCPLD_IRQ(chip, offset) (OMAP_IRQ_END + 8 * (chip) + (offset))
135 #define HTCPLD_BASE(chip, offset) \
136 (HTCPLD_GPIO_START_OFFSET + 8 * (chip) + (offset))
137
138 #define HTCPLD_GPIO_LED_DPAD HTCPLD_BASE(0, 0)
139 #define HTCPLD_GPIO_LED_KBD HTCPLD_BASE(1, 0)
140 #define HTCPLD_GPIO_LED_CAPS HTCPLD_BASE(1, 5)
141 #define HTCPLD_GPIO_LED_RED_FLASH HTCPLD_BASE(2, 1)
142 #define HTCPLD_GPIO_LED_RED_SOLID HTCPLD_BASE(2, 2)
143 #define HTCPLD_GPIO_LED_GREEN_FLASH HTCPLD_BASE(2, 3)
144 #define HTCPLD_GPIO_LED_GREEN_SOLID HTCPLD_BASE(2, 4)
145 #define HTCPLD_GPIO_LED_WIFI HTCPLD_BASE(2, 5)
146 #define HTCPLD_GPIO_LED_BT HTCPLD_BASE(2, 6)
147 #define HTCPLD_GPIO_LED_VIBRATE HTCPLD_BASE(3, 3)
148 #define HTCPLD_GPIO_LED_ALT HTCPLD_BASE(3, 4)
149
150 #define HTCPLD_GPIO_RIGHT_KBD HTCPLD_BASE(6, 7)
151 #define HTCPLD_GPIO_UP_KBD HTCPLD_BASE(6, 6)
152 #define HTCPLD_GPIO_LEFT_KBD HTCPLD_BASE(6, 5)
153 #define HTCPLD_GPIO_DOWN_KBD HTCPLD_BASE(6, 4)
154
155 #define HTCPLD_GPIO_RIGHT_DPAD HTCPLD_BASE(7, 7)
156 #define HTCPLD_GPIO_UP_DPAD HTCPLD_BASE(7, 6)
157 #define HTCPLD_GPIO_LEFT_DPAD HTCPLD_BASE(7, 5)
158 #define HTCPLD_GPIO_DOWN_DPAD HTCPLD_BASE(7, 4)
159 #define HTCPLD_GPIO_ENTER_DPAD HTCPLD_BASE(7, 3)
160
161 /*
162 * The htcpld chip requires a gpio write to a specific line
163 * to re-enable interrupts after one has occurred.
164 */
165 #define HTCPLD_GPIO_INT_RESET_HI HTCPLD_BASE(2, 7)
166 #define HTCPLD_GPIO_INT_RESET_LO HTCPLD_BASE(2, 0)
167
168 /* Chip 5 */
169 #define HTCPLD_IRQ_RIGHT_KBD HTCPLD_IRQ(0, 7)
170 #define HTCPLD_IRQ_UP_KBD HTCPLD_IRQ(0, 6)
171 #define HTCPLD_IRQ_LEFT_KBD HTCPLD_IRQ(0, 5)
172 #define HTCPLD_IRQ_DOWN_KBD HTCPLD_IRQ(0, 4)
173
174 /* Chip 6 */
175 #define HTCPLD_IRQ_RIGHT_DPAD HTCPLD_IRQ(1, 7)
176 #define HTCPLD_IRQ_UP_DPAD HTCPLD_IRQ(1, 6)
177 #define HTCPLD_IRQ_LEFT_DPAD HTCPLD_IRQ(1, 5)
178 #define HTCPLD_IRQ_DOWN_DPAD HTCPLD_IRQ(1, 4)
179 #define HTCPLD_IRQ_ENTER_DPAD HTCPLD_IRQ(1, 3)
180
181 /* Keyboard definition */
182
183 static const unsigned int htc_herald_keymap[] = {
184 KEY(0, 0, KEY_RECORD), /* Mail button */
185 KEY(1, 0, KEY_CAMERA), /* Camera */
186 KEY(2, 0, KEY_PHONE), /* Send key */
187 KEY(3, 0, KEY_VOLUMEUP), /* Volume up */
188 KEY(4, 0, KEY_F2), /* Right bar (landscape) */
189 KEY(5, 0, KEY_MAIL), /* Win key (portrait) */
190 KEY(6, 0, KEY_DIRECTORY), /* Right bar (protrait) */
191 KEY(0, 1, KEY_LEFTCTRL), /* Windows key */
192 KEY(1, 1, KEY_COMMA),
193 KEY(2, 1, KEY_M),
194 KEY(3, 1, KEY_K),
195 KEY(4, 1, KEY_SLASH), /* OK key */
196 KEY(5, 1, KEY_I),
197 KEY(6, 1, KEY_U),
198 KEY(0, 2, KEY_LEFTALT),
199 KEY(1, 2, KEY_TAB),
200 KEY(2, 2, KEY_N),
201 KEY(3, 2, KEY_J),
202 KEY(4, 2, KEY_ENTER),
203 KEY(5, 2, KEY_H),
204 KEY(6, 2, KEY_Y),
205 KEY(0, 3, KEY_SPACE),
206 KEY(1, 3, KEY_L),
207 KEY(2, 3, KEY_B),
208 KEY(3, 3, KEY_V),
209 KEY(4, 3, KEY_BACKSPACE),
210 KEY(5, 3, KEY_G),
211 KEY(6, 3, KEY_T),
212 KEY(0, 4, KEY_CAPSLOCK), /* Shift */
213 KEY(1, 4, KEY_C),
214 KEY(2, 4, KEY_F),
215 KEY(3, 4, KEY_R),
216 KEY(4, 4, KEY_O),
217 KEY(5, 4, KEY_E),
218 KEY(6, 4, KEY_D),
219 KEY(0, 5, KEY_X),
220 KEY(1, 5, KEY_Z),
221 KEY(2, 5, KEY_S),
222 KEY(3, 5, KEY_W),
223 KEY(4, 5, KEY_P),
224 KEY(5, 5, KEY_Q),
225 KEY(6, 5, KEY_A),
226 KEY(0, 6, KEY_CONNECT), /* Voice button */
227 KEY(2, 6, KEY_CANCEL), /* End key */
228 KEY(3, 6, KEY_VOLUMEDOWN), /* Volume down */
229 KEY(4, 6, KEY_F1), /* Left bar (landscape) */
230 KEY(5, 6, KEY_WWW), /* OK button (portrait) */
231 KEY(6, 6, KEY_CALENDAR), /* Left bar (portrait) */
232 };
233
234 static const struct matrix_keymap_data htc_herald_keymap_data = {
235 .keymap = htc_herald_keymap,
236 .keymap_size = ARRAY_SIZE(htc_herald_keymap),
237 };
238
239 static struct omap_kp_platform_data htcherald_kp_data = {
240 .rows = 7,
241 .cols = 7,
242 .delay = 20,
243 .rep = true,
244 .keymap_data = &htc_herald_keymap_data,
245 };
246
247 static struct resource kp_resources[] = {
248 [0] = {
249 .start = INT_7XX_MPUIO_KEYPAD,
250 .end = INT_7XX_MPUIO_KEYPAD,
251 .flags = IORESOURCE_IRQ,
252 },
253 };
254
255 static struct platform_device kp_device = {
256 .name = "omap-keypad",
257 .id = -1,
258 .dev = {
259 .platform_data = &htcherald_kp_data,
260 },
261 .num_resources = ARRAY_SIZE(kp_resources),
262 .resource = kp_resources,
263 };
264
265 /* GPIO buttons for keyboard slide and power button */
266 static struct gpio_keys_button herald_gpio_keys_table[] = {
267 {BTN_0, HTCHERALD_GPIO_POWER, 1, "POWER", EV_KEY, 1, 20},
268 {SW_LID, HTCHERALD_GPIO_SLIDE, 0, "SLIDE", EV_SW, 1, 20},
269
270 {KEY_LEFT, HTCPLD_GPIO_LEFT_KBD, 1, "LEFT", EV_KEY, 1, 20},
271 {KEY_RIGHT, HTCPLD_GPIO_RIGHT_KBD, 1, "RIGHT", EV_KEY, 1, 20},
272 {KEY_UP, HTCPLD_GPIO_UP_KBD, 1, "UP", EV_KEY, 1, 20},
273 {KEY_DOWN, HTCPLD_GPIO_DOWN_KBD, 1, "DOWN", EV_KEY, 1, 20},
274
275 {KEY_LEFT, HTCPLD_GPIO_LEFT_DPAD, 1, "DLEFT", EV_KEY, 1, 20},
276 {KEY_RIGHT, HTCPLD_GPIO_RIGHT_DPAD, 1, "DRIGHT", EV_KEY, 1, 20},
277 {KEY_UP, HTCPLD_GPIO_UP_DPAD, 1, "DUP", EV_KEY, 1, 20},
278 {KEY_DOWN, HTCPLD_GPIO_DOWN_DPAD, 1, "DDOWN", EV_KEY, 1, 20},
279 {KEY_ENTER, HTCPLD_GPIO_ENTER_DPAD, 1, "DENTER", EV_KEY, 1, 20},
280 };
281
282 static struct gpio_keys_platform_data herald_gpio_keys_data = {
283 .buttons = herald_gpio_keys_table,
284 .nbuttons = ARRAY_SIZE(herald_gpio_keys_table),
285 .rep = true,
286 };
287
288 static struct platform_device herald_gpiokeys_device = {
289 .name = "gpio-keys",
290 .id = -1,
291 .dev = {
292 .platform_data = &herald_gpio_keys_data,
293 },
294 };
295
296 /* LEDs for the Herald. These connect to the HTCPLD GPIO device. */
297 static struct gpio_led gpio_leds[] = {
298 {"dpad", NULL, HTCPLD_GPIO_LED_DPAD, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
299 {"kbd", NULL, HTCPLD_GPIO_LED_KBD, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
300 {"vibrate", NULL, HTCPLD_GPIO_LED_VIBRATE, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
301 {"green_solid", NULL, HTCPLD_GPIO_LED_GREEN_SOLID, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
302 {"green_flash", NULL, HTCPLD_GPIO_LED_GREEN_FLASH, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
303 {"red_solid", "mmc0", HTCPLD_GPIO_LED_RED_SOLID, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
304 {"red_flash", NULL, HTCPLD_GPIO_LED_RED_FLASH, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
305 {"wifi", NULL, HTCPLD_GPIO_LED_WIFI, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
306 {"bt", NULL, HTCPLD_GPIO_LED_BT, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
307 {"caps", NULL, HTCPLD_GPIO_LED_CAPS, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
308 {"alt", NULL, HTCPLD_GPIO_LED_ALT, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
309 };
310
311 static struct gpio_led_platform_data gpio_leds_data = {
312 .leds = gpio_leds,
313 .num_leds = ARRAY_SIZE(gpio_leds),
314 };
315
316 static struct platform_device gpio_leds_device = {
317 .name = "leds-gpio",
318 .id = 0,
319 .dev = {
320 .platform_data = &gpio_leds_data,
321 },
322 };
323
324 /* HTC PLD chips */
325
326 static struct resource htcpld_resources[] = {
327 [0] = {
328 .start = OMAP_GPIO_IRQ(HTCHERALD_GIRQ_BTNS),
329 .end = OMAP_GPIO_IRQ(HTCHERALD_GIRQ_BTNS),
330 .flags = IORESOURCE_IRQ,
331 },
332 };
333
334 static struct htcpld_chip_platform_data htcpld_chips[] = {
335 [0] = {
336 .addr = 0x03,
337 .reset = 0x04,
338 .num_gpios = 8,
339 .gpio_out_base = HTCPLD_BASE(0, 0),
340 .gpio_in_base = HTCPLD_BASE(4, 0),
341 },
342 [1] = {
343 .addr = 0x04,
344 .reset = 0x8e,
345 .num_gpios = 8,
346 .gpio_out_base = HTCPLD_BASE(1, 0),
347 .gpio_in_base = HTCPLD_BASE(5, 0),
348 },
349 [2] = {
350 .addr = 0x05,
351 .reset = 0x80,
352 .num_gpios = 8,
353 .gpio_out_base = HTCPLD_BASE(2, 0),
354 .gpio_in_base = HTCPLD_BASE(6, 0),
355 .irq_base = HTCPLD_IRQ(0, 0),
356 .num_irqs = 8,
357 },
358 [3] = {
359 .addr = 0x06,
360 .reset = 0x40,
361 .num_gpios = 8,
362 .gpio_out_base = HTCPLD_BASE(3, 0),
363 .gpio_in_base = HTCPLD_BASE(7, 0),
364 .irq_base = HTCPLD_IRQ(1, 0),
365 .num_irqs = 8,
366 },
367 };
368
369 static struct htcpld_core_platform_data htcpld_pfdata = {
370 .int_reset_gpio_hi = HTCPLD_GPIO_INT_RESET_HI,
371 .int_reset_gpio_lo = HTCPLD_GPIO_INT_RESET_LO,
372 .i2c_adapter_id = 1,
373
374 .chip = htcpld_chips,
375 .num_chip = ARRAY_SIZE(htcpld_chips),
376 };
377
378 static struct platform_device htcpld_device = {
379 .name = "i2c-htcpld",
380 .id = -1,
381 .resource = htcpld_resources,
382 .num_resources = ARRAY_SIZE(htcpld_resources),
383 .dev = {
384 .platform_data = &htcpld_pfdata,
385 },
386 };
387
388 /* USB Device */
389 static struct omap_usb_config htcherald_usb_config __initdata = {
390 .otg = 0,
391 .register_host = 0,
392 .register_dev = 1,
393 .hmc_mode = 4,
394 .pins[0] = 2,
395 };
396
397 /* LCD Device resources */
398 static struct omap_lcd_config htcherald_lcd_config __initdata = {
399 .ctrl_name = "internal",
400 };
401
402 static struct omap_board_config_kernel htcherald_config[] __initdata = {
403 { OMAP_TAG_LCD, &htcherald_lcd_config },
404 };
405
406 static struct platform_device lcd_device = {
407 .name = "lcd_htcherald",
408 .id = -1,
409 };
410
411 /* MMC Card */
412 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
413 static struct omap_mmc_platform_data htc_mmc1_data = {
414 .nr_slots = 1,
415 .switch_slot = NULL,
416 .slots[0] = {
417 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
418 .name = "mmcblk",
419 .nomux = 1,
420 .wires = 4,
421 .switch_pin = -1,
422 },
423 };
424
425 static struct omap_mmc_platform_data *htc_mmc_data[1];
426 #endif
427
428
429 /* Platform devices for the Herald */
430 static struct platform_device *devices[] __initdata = {
431 &kp_device,
432 &lcd_device,
433 &htcpld_device,
434 &gpio_leds_device,
435 &herald_gpiokeys_device,
436 };
437
438 /*
439 * Touchscreen
440 */
441 static const struct ads7846_platform_data htcherald_ts_platform_data = {
442 .model = 7846,
443 .keep_vref_on = 1,
444 .x_plate_ohms = 496,
445 .gpio_pendown = HTCHERALD_GPIO_TS,
446 .pressure_max = 10000,
447 .pressure_min = 5000,
448 .x_min = 528,
449 .x_max = 3760,
450 .y_min = 624,
451 .y_max = 3760,
452 };
453
454 static struct spi_board_info __initdata htcherald_spi_board_info[] = {
455 {
456 .modalias = "ads7846",
457 .platform_data = &htcherald_ts_platform_data,
458 .irq = OMAP_GPIO_IRQ(HTCHERALD_GPIO_TS),
459 .max_speed_hz = 2500000,
460 .bus_num = 2,
461 .chip_select = 1,
462 }
463 };
464
465 /*
466 * Init functions from here on
467 */
468
469 static void __init htcherald_lcd_init(void)
470 {
471 u32 reg;
472 unsigned int tries = 200;
473
474 /* disable controller if active */
475 reg = omap_readl(OMAP_LCDC_CONTROL);
476 if (reg & OMAP_LCDC_CTRL_LCD_EN) {
477 reg &= ~OMAP_LCDC_CTRL_LCD_EN;
478 omap_writel(reg, OMAP_LCDC_CONTROL);
479
480 /* wait for end of frame */
481 while (!(omap_readl(OMAP_LCDC_STATUS) & OMAP_LCDC_STAT_DONE)) {
482 tries--;
483 if (!tries)
484 break;
485 }
486 if (!tries)
487 printk(KERN_WARNING "Timeout waiting for end of frame "
488 "-- LCD may not be available\n");
489
490 /* turn off DMA */
491 reg = omap_readw(OMAP_DMA_LCD_CCR);
492 reg &= ~(1 << 7);
493 omap_writew(reg, OMAP_DMA_LCD_CCR);
494
495 reg = omap_readw(OMAP_DMA_LCD_CTRL);
496 reg &= ~(1 << 8);
497 omap_writew(reg, OMAP_DMA_LCD_CTRL);
498 }
499 }
500
501 static void __init htcherald_map_io(void)
502 {
503 omap1_map_common_io();
504
505 /*
506 * The LCD panel must be disabled and DMA turned off here, as doing
507 * it later causes the LCD never to reinitialize.
508 */
509 htcherald_lcd_init();
510
511 printk(KERN_INFO "htcherald_map_io done.\n");
512 }
513
514 static void __init htcherald_disable_watchdog(void)
515 {
516 /* Disable watchdog if running */
517 if (omap_readl(OMAP_WDT_TIMER_MODE) & 0x8000) {
518 /*
519 * disable a potentially running watchdog timer before
520 * it kills us.
521 */
522 printk(KERN_WARNING "OMAP850 Watchdog seems to be activated, disabling it for now.\n");
523 omap_writel(0xF5, OMAP_WDT_TIMER_MODE);
524 omap_writel(0xA0, OMAP_WDT_TIMER_MODE);
525 }
526 }
527
528 #define HTCHERALD_GPIO_USB_EN1 33
529 #define HTCHERALD_GPIO_USB_EN2 73
530 #define HTCHERALD_GPIO_USB_DM 35
531 #define HTCHERALD_GPIO_USB_DP 36
532
533 static void __init htcherald_usb_enable(void)
534 {
535 unsigned int tries = 20;
536 unsigned int value = 0;
537
538 /* Request the GPIOs we need to control here */
539 if (gpio_request(HTCHERALD_GPIO_USB_EN1, "herald_usb") < 0)
540 goto err1;
541
542 if (gpio_request(HTCHERALD_GPIO_USB_EN2, "herald_usb") < 0)
543 goto err2;
544
545 if (gpio_request(HTCHERALD_GPIO_USB_DM, "herald_usb") < 0)
546 goto err3;
547
548 if (gpio_request(HTCHERALD_GPIO_USB_DP, "herald_usb") < 0)
549 goto err4;
550
551 /* force USB_EN GPIO to 0 */
552 do {
553 /* output low */
554 gpio_direction_output(HTCHERALD_GPIO_USB_EN1, 0);
555 } while ((value = gpio_get_value(HTCHERALD_GPIO_USB_EN1)) == 1 &&
556 --tries);
557
558 if (value == 1)
559 printk(KERN_WARNING "Unable to reset USB, trying to continue\n");
560
561 gpio_direction_output(HTCHERALD_GPIO_USB_EN2, 0); /* output low */
562 gpio_direction_input(HTCHERALD_GPIO_USB_DM); /* input */
563 gpio_direction_input(HTCHERALD_GPIO_USB_DP); /* input */
564
565 goto done;
566
567 err4:
568 gpio_free(HTCHERALD_GPIO_USB_DM);
569 err3:
570 gpio_free(HTCHERALD_GPIO_USB_EN2);
571 err2:
572 gpio_free(HTCHERALD_GPIO_USB_EN1);
573 err1:
574 printk(KERN_ERR "Unabled to request GPIO for USB\n");
575 done:
576 printk(KERN_INFO "USB setup complete.\n");
577 }
578
579 static void __init htcherald_init(void)
580 {
581 printk(KERN_INFO "HTC Herald init.\n");
582
583 /* Do board initialization before we register all the devices */
584 omap_board_config = htcherald_config;
585 omap_board_config_size = ARRAY_SIZE(htcherald_config);
586 platform_add_devices(devices, ARRAY_SIZE(devices));
587
588 htcherald_disable_watchdog();
589
590 htcherald_usb_enable();
591 omap1_usb_init(&htcherald_usb_config);
592
593 spi_register_board_info(htcherald_spi_board_info,
594 ARRAY_SIZE(htcherald_spi_board_info));
595
596 omap_register_i2c_bus(1, 100, NULL, 0);
597
598 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
599 htc_mmc_data[0] = &htc_mmc1_data;
600 omap1_init_mmc(htc_mmc_data, 1);
601 #endif
602 }
603
604 static void __init htcherald_init_irq(void)
605 {
606 printk(KERN_INFO "htcherald_init_irq.\n");
607 omap1_init_common_hw();
608 omap_init_irq();
609 }
610
611 MACHINE_START(HERALD, "HTC Herald")
612 /* Maintainer: Cory Maccarrone <darkstar6262@gmail.com> */
613 /* Maintainer: wing-linux.sourceforge.net */
614 .boot_params = 0x10000100,
615 .map_io = htcherald_map_io,
616 .reserve = omap_reserve,
617 .init_irq = htcherald_init_irq,
618 .init_machine = htcherald_init,
619 .timer = &omap_timer,
620 MACHINE_END
linux-next