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Cory Maccarrone9c2816f2009-11-22 10:11:34 -08001/*
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 */
Cory Maccarrone9c2816f2009-11-22 10:11:34 -080026#include <linux/kernel.h>
27#include <linux/init.h>
28#include <linux/platform_device.h>
29#include <linux/input.h>
Tony Lindgren2e3ee9f2012-02-24 10:34:34 -080030#include <linux/delay.h>
Cory Maccarrone9c2816f2009-11-22 10:11:34 -080031#include <linux/gpio.h>
Cory Maccarrone493c32a2010-08-18 04:35:46 +000032#include <linux/gpio_keys.h>
33#include <linux/i2c.h>
34#include <linux/i2c-gpio.h>
35#include <linux/htcpld.h>
36#include <linux/leds.h>
37#include <linux/spi/spi.h>
38#include <linux/spi/ads7846.h>
Cory Maccarrone9c2816f2009-11-22 10:11:34 -080039
40#include <asm/mach-types.h>
41#include <asm/mach/arch.h>
42
43#include <plat/omap7xx.h>
Cory Maccarrone9c2816f2009-11-22 10:11:34 -080044#include <plat/board.h>
45#include <plat/keypad.h>
Cory Maccarrone106997c2009-12-11 16:16:34 -080046#include <plat/usb.h>
Cory Maccarrone493c32a2010-08-18 04:35:46 +000047#include <plat/mmc.h>
Cory Maccarrone9c2816f2009-11-22 10:11:34 -080048
49#include <mach/irqs.h>
50
Tony Lindgren2e3ee9f2012-02-24 10:34:34 -080051#include "common.h"
Cory Maccarrone9c2816f2009-11-22 10:11:34 -080052
53/* LCD register definition */
54#define OMAP_LCDC_CONTROL (0xfffec000 + 0x00)
55#define OMAP_LCDC_STATUS (0xfffec000 + 0x10)
56#define OMAP_DMA_LCD_CCR (0xfffee300 + 0xc2)
57#define OMAP_DMA_LCD_CTRL (0xfffee300 + 0xc4)
58#define OMAP_LCDC_CTRL_LCD_EN (1 << 0)
59#define OMAP_LCDC_STAT_DONE (1 << 0)
60
Cory Maccarrone493c32a2010-08-18 04:35:46 +000061/* GPIO definitions for the power button and keyboard slide switch */
62#define HTCHERALD_GPIO_POWER 139
63#define HTCHERALD_GPIO_SLIDE 174
64#define HTCHERALD_GIRQ_BTNS 141
Cory Maccarrone9c2816f2009-11-22 10:11:34 -080065
Cory Maccarrone493c32a2010-08-18 04:35:46 +000066/* GPIO definitions for the touchscreen */
67#define HTCHERALD_GPIO_TS 76
68
69/* HTCPLD definitions */
70
71/*
72 * CPLD Logic
73 *
74 * Chip 3 - 0x03
75 *
76 * Function 7 6 5 4 3 2 1 0
77 * ------------------------------------
78 * DPAD light x x x x x x x 1
79 * SoundDev x x x x 1 x x x
80 * Screen white 1 x x x x x x x
81 * MMC power on x x x x x 1 x x
82 * Happy times (n) 0 x x x x 1 x x
83 *
84 * Chip 4 - 0x04
85 *
86 * Function 7 6 5 4 3 2 1 0
87 * ------------------------------------
88 * Keyboard light x x x x x x x 1
89 * LCD Bright (4) x x x x x 1 1 x
90 * LCD Bright (3) x x x x x 0 1 x
91 * LCD Bright (2) x x x x x 1 0 x
92 * LCD Bright (1) x x x x x 0 0 x
93 * LCD Off x x x x 0 x x x
94 * LCD image (fb) 1 x x x x x x x
95 * LCD image (white) 0 x x x x x x x
96 * Caps lock LED x x 1 x x x x x
97 *
98 * Chip 5 - 0x05
99 *
100 * Function 7 6 5 4 3 2 1 0
101 * ------------------------------------
102 * Red (solid) x x x x x 1 x x
103 * Red (flash) x x x x x x 1 x
104 * Green (GSM flash) x x x x 1 x x x
105 * Green (GSM solid) x x x 1 x x x x
106 * Green (wifi flash) x x 1 x x x x x
107 * Blue (bt flash) x 1 x x x x x x
108 * DPAD Int Enable 1 x x x x x x 0
109 *
110 * (Combinations of the above can be made for different colors.)
111 * The direction pad interrupt enable must be set each time the
112 * interrupt is handled.
113 *
114 * Chip 6 - 0x06
115 *
116 * Function 7 6 5 4 3 2 1 0
117 * ------------------------------------
118 * Vibrator x x x x 1 x x x
119 * Alt LED x x x 1 x x x x
120 * Screen white 1 x x x x x x x
121 * Screen white x x 1 x x x x x
122 * Screen white x 0 x x x x x x
123 * Enable kbd dpad x x x x x x 0 x
124 * Happy Times 0 1 0 x x x 0 x
125 */
126
127/*
128 * HTCPLD GPIO lines start 16 after OMAP_MAX_GPIO_LINES to account
129 * for the 16 MPUIO lines.
130 */
131#define HTCPLD_GPIO_START_OFFSET (OMAP_MAX_GPIO_LINES + 16)
132#define HTCPLD_IRQ(chip, offset) (OMAP_IRQ_END + 8 * (chip) + (offset))
133#define HTCPLD_BASE(chip, offset) \
134 (HTCPLD_GPIO_START_OFFSET + 8 * (chip) + (offset))
135
136#define HTCPLD_GPIO_LED_DPAD HTCPLD_BASE(0, 0)
137#define HTCPLD_GPIO_LED_KBD HTCPLD_BASE(1, 0)
138#define HTCPLD_GPIO_LED_CAPS HTCPLD_BASE(1, 5)
139#define HTCPLD_GPIO_LED_RED_FLASH HTCPLD_BASE(2, 1)
140#define HTCPLD_GPIO_LED_RED_SOLID HTCPLD_BASE(2, 2)
141#define HTCPLD_GPIO_LED_GREEN_FLASH HTCPLD_BASE(2, 3)
142#define HTCPLD_GPIO_LED_GREEN_SOLID HTCPLD_BASE(2, 4)
143#define HTCPLD_GPIO_LED_WIFI HTCPLD_BASE(2, 5)
144#define HTCPLD_GPIO_LED_BT HTCPLD_BASE(2, 6)
145#define HTCPLD_GPIO_LED_VIBRATE HTCPLD_BASE(3, 3)
146#define HTCPLD_GPIO_LED_ALT HTCPLD_BASE(3, 4)
147
148#define HTCPLD_GPIO_RIGHT_KBD HTCPLD_BASE(6, 7)
149#define HTCPLD_GPIO_UP_KBD HTCPLD_BASE(6, 6)
150#define HTCPLD_GPIO_LEFT_KBD HTCPLD_BASE(6, 5)
151#define HTCPLD_GPIO_DOWN_KBD HTCPLD_BASE(6, 4)
152
153#define HTCPLD_GPIO_RIGHT_DPAD HTCPLD_BASE(7, 7)
154#define HTCPLD_GPIO_UP_DPAD HTCPLD_BASE(7, 6)
155#define HTCPLD_GPIO_LEFT_DPAD HTCPLD_BASE(7, 5)
156#define HTCPLD_GPIO_DOWN_DPAD HTCPLD_BASE(7, 4)
157#define HTCPLD_GPIO_ENTER_DPAD HTCPLD_BASE(7, 3)
158
159/*
160 * The htcpld chip requires a gpio write to a specific line
161 * to re-enable interrupts after one has occurred.
162 */
163#define HTCPLD_GPIO_INT_RESET_HI HTCPLD_BASE(2, 7)
164#define HTCPLD_GPIO_INT_RESET_LO HTCPLD_BASE(2, 0)
165
166/* Chip 5 */
167#define HTCPLD_IRQ_RIGHT_KBD HTCPLD_IRQ(0, 7)
168#define HTCPLD_IRQ_UP_KBD HTCPLD_IRQ(0, 6)
169#define HTCPLD_IRQ_LEFT_KBD HTCPLD_IRQ(0, 5)
170#define HTCPLD_IRQ_DOWN_KBD HTCPLD_IRQ(0, 4)
171
172/* Chip 6 */
173#define HTCPLD_IRQ_RIGHT_DPAD HTCPLD_IRQ(1, 7)
174#define HTCPLD_IRQ_UP_DPAD HTCPLD_IRQ(1, 6)
175#define HTCPLD_IRQ_LEFT_DPAD HTCPLD_IRQ(1, 5)
176#define HTCPLD_IRQ_DOWN_DPAD HTCPLD_IRQ(1, 4)
177#define HTCPLD_IRQ_ENTER_DPAD HTCPLD_IRQ(1, 3)
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800178
179/* Keyboard definition */
180
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000181static const unsigned int htc_herald_keymap[] = {
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800182 KEY(0, 0, KEY_RECORD), /* Mail button */
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000183 KEY(1, 0, KEY_CAMERA), /* Camera */
184 KEY(2, 0, KEY_PHONE), /* Send key */
185 KEY(3, 0, KEY_VOLUMEUP), /* Volume up */
186 KEY(4, 0, KEY_F2), /* Right bar (landscape) */
187 KEY(5, 0, KEY_MAIL), /* Win key (portrait) */
188 KEY(6, 0, KEY_DIRECTORY), /* Right bar (protrait) */
189 KEY(0, 1, KEY_LEFTCTRL), /* Windows key */
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800190 KEY(1, 1, KEY_COMMA),
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000191 KEY(2, 1, KEY_M),
192 KEY(3, 1, KEY_K),
193 KEY(4, 1, KEY_SLASH), /* OK key */
194 KEY(5, 1, KEY_I),
195 KEY(6, 1, KEY_U),
196 KEY(0, 2, KEY_LEFTALT),
197 KEY(1, 2, KEY_TAB),
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800198 KEY(2, 2, KEY_N),
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000199 KEY(3, 2, KEY_J),
200 KEY(4, 2, KEY_ENTER),
201 KEY(5, 2, KEY_H),
202 KEY(6, 2, KEY_Y),
203 KEY(0, 3, KEY_SPACE),
204 KEY(1, 3, KEY_L),
205 KEY(2, 3, KEY_B),
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800206 KEY(3, 3, KEY_V),
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000207 KEY(4, 3, KEY_BACKSPACE),
208 KEY(5, 3, KEY_G),
209 KEY(6, 3, KEY_T),
210 KEY(0, 4, KEY_CAPSLOCK), /* Shift */
211 KEY(1, 4, KEY_C),
212 KEY(2, 4, KEY_F),
213 KEY(3, 4, KEY_R),
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800214 KEY(4, 4, KEY_O),
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000215 KEY(5, 4, KEY_E),
216 KEY(6, 4, KEY_D),
217 KEY(0, 5, KEY_X),
218 KEY(1, 5, KEY_Z),
219 KEY(2, 5, KEY_S),
220 KEY(3, 5, KEY_W),
221 KEY(4, 5, KEY_P),
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800222 KEY(5, 5, KEY_Q),
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000223 KEY(6, 5, KEY_A),
224 KEY(0, 6, KEY_CONNECT), /* Voice button */
225 KEY(2, 6, KEY_CANCEL), /* End key */
226 KEY(3, 6, KEY_VOLUMEDOWN), /* Volume down */
227 KEY(4, 6, KEY_F1), /* Left bar (landscape) */
228 KEY(5, 6, KEY_WWW), /* OK button (portrait) */
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800229 KEY(6, 6, KEY_CALENDAR), /* Left bar (portrait) */
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800230};
231
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000232static const struct matrix_keymap_data htc_herald_keymap_data = {
233 .keymap = htc_herald_keymap,
234 .keymap_size = ARRAY_SIZE(htc_herald_keymap),
235};
236
237static struct omap_kp_platform_data htcherald_kp_data = {
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800238 .rows = 7,
239 .cols = 7,
240 .delay = 20,
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000241 .rep = true,
242 .keymap_data = &htc_herald_keymap_data,
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800243};
244
245static struct resource kp_resources[] = {
246 [0] = {
247 .start = INT_7XX_MPUIO_KEYPAD,
248 .end = INT_7XX_MPUIO_KEYPAD,
249 .flags = IORESOURCE_IRQ,
250 },
251};
252
253static struct platform_device kp_device = {
254 .name = "omap-keypad",
255 .id = -1,
256 .dev = {
257 .platform_data = &htcherald_kp_data,
258 },
259 .num_resources = ARRAY_SIZE(kp_resources),
260 .resource = kp_resources,
261};
262
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000263/* GPIO buttons for keyboard slide and power button */
264static struct gpio_keys_button herald_gpio_keys_table[] = {
265 {BTN_0, HTCHERALD_GPIO_POWER, 1, "POWER", EV_KEY, 1, 20},
266 {SW_LID, HTCHERALD_GPIO_SLIDE, 0, "SLIDE", EV_SW, 1, 20},
267
268 {KEY_LEFT, HTCPLD_GPIO_LEFT_KBD, 1, "LEFT", EV_KEY, 1, 20},
269 {KEY_RIGHT, HTCPLD_GPIO_RIGHT_KBD, 1, "RIGHT", EV_KEY, 1, 20},
270 {KEY_UP, HTCPLD_GPIO_UP_KBD, 1, "UP", EV_KEY, 1, 20},
271 {KEY_DOWN, HTCPLD_GPIO_DOWN_KBD, 1, "DOWN", EV_KEY, 1, 20},
272
273 {KEY_LEFT, HTCPLD_GPIO_LEFT_DPAD, 1, "DLEFT", EV_KEY, 1, 20},
274 {KEY_RIGHT, HTCPLD_GPIO_RIGHT_DPAD, 1, "DRIGHT", EV_KEY, 1, 20},
275 {KEY_UP, HTCPLD_GPIO_UP_DPAD, 1, "DUP", EV_KEY, 1, 20},
276 {KEY_DOWN, HTCPLD_GPIO_DOWN_DPAD, 1, "DDOWN", EV_KEY, 1, 20},
277 {KEY_ENTER, HTCPLD_GPIO_ENTER_DPAD, 1, "DENTER", EV_KEY, 1, 20},
278};
279
280static struct gpio_keys_platform_data herald_gpio_keys_data = {
281 .buttons = herald_gpio_keys_table,
282 .nbuttons = ARRAY_SIZE(herald_gpio_keys_table),
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000283 .rep = true,
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000284};
285
286static struct platform_device herald_gpiokeys_device = {
287 .name = "gpio-keys",
288 .id = -1,
289 .dev = {
290 .platform_data = &herald_gpio_keys_data,
291 },
292};
293
294/* LEDs for the Herald. These connect to the HTCPLD GPIO device. */
295static struct gpio_led gpio_leds[] = {
296 {"dpad", NULL, HTCPLD_GPIO_LED_DPAD, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
297 {"kbd", NULL, HTCPLD_GPIO_LED_KBD, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
298 {"vibrate", NULL, HTCPLD_GPIO_LED_VIBRATE, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
299 {"green_solid", NULL, HTCPLD_GPIO_LED_GREEN_SOLID, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
300 {"green_flash", NULL, HTCPLD_GPIO_LED_GREEN_FLASH, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
301 {"red_solid", "mmc0", HTCPLD_GPIO_LED_RED_SOLID, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
302 {"red_flash", NULL, HTCPLD_GPIO_LED_RED_FLASH, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
303 {"wifi", NULL, HTCPLD_GPIO_LED_WIFI, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
304 {"bt", NULL, HTCPLD_GPIO_LED_BT, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
305 {"caps", NULL, HTCPLD_GPIO_LED_CAPS, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
306 {"alt", NULL, HTCPLD_GPIO_LED_ALT, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
307};
308
309static struct gpio_led_platform_data gpio_leds_data = {
310 .leds = gpio_leds,
311 .num_leds = ARRAY_SIZE(gpio_leds),
312};
313
314static struct platform_device gpio_leds_device = {
315 .name = "leds-gpio",
316 .id = 0,
317 .dev = {
318 .platform_data = &gpio_leds_data,
319 },
320};
321
322/* HTC PLD chips */
323
324static struct resource htcpld_resources[] = {
325 [0] = {
326 .start = OMAP_GPIO_IRQ(HTCHERALD_GIRQ_BTNS),
327 .end = OMAP_GPIO_IRQ(HTCHERALD_GIRQ_BTNS),
328 .flags = IORESOURCE_IRQ,
329 },
330};
331
Aaro Koskinen140089d2011-01-27 16:39:44 -0800332static struct htcpld_chip_platform_data htcpld_chips[] = {
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000333 [0] = {
334 .addr = 0x03,
335 .reset = 0x04,
336 .num_gpios = 8,
337 .gpio_out_base = HTCPLD_BASE(0, 0),
338 .gpio_in_base = HTCPLD_BASE(4, 0),
339 },
340 [1] = {
341 .addr = 0x04,
342 .reset = 0x8e,
343 .num_gpios = 8,
344 .gpio_out_base = HTCPLD_BASE(1, 0),
345 .gpio_in_base = HTCPLD_BASE(5, 0),
346 },
347 [2] = {
348 .addr = 0x05,
349 .reset = 0x80,
350 .num_gpios = 8,
351 .gpio_out_base = HTCPLD_BASE(2, 0),
352 .gpio_in_base = HTCPLD_BASE(6, 0),
353 .irq_base = HTCPLD_IRQ(0, 0),
354 .num_irqs = 8,
355 },
356 [3] = {
357 .addr = 0x06,
358 .reset = 0x40,
359 .num_gpios = 8,
360 .gpio_out_base = HTCPLD_BASE(3, 0),
361 .gpio_in_base = HTCPLD_BASE(7, 0),
362 .irq_base = HTCPLD_IRQ(1, 0),
363 .num_irqs = 8,
364 },
365};
366
Aaro Koskinen140089d2011-01-27 16:39:44 -0800367static struct htcpld_core_platform_data htcpld_pfdata = {
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000368 .int_reset_gpio_hi = HTCPLD_GPIO_INT_RESET_HI,
369 .int_reset_gpio_lo = HTCPLD_GPIO_INT_RESET_LO,
370 .i2c_adapter_id = 1,
371
372 .chip = htcpld_chips,
373 .num_chip = ARRAY_SIZE(htcpld_chips),
374};
375
376static struct platform_device htcpld_device = {
377 .name = "i2c-htcpld",
378 .id = -1,
379 .resource = htcpld_resources,
380 .num_resources = ARRAY_SIZE(htcpld_resources),
381 .dev = {
382 .platform_data = &htcpld_pfdata,
383 },
384};
385
Cory Maccarrone106997c2009-12-11 16:16:34 -0800386/* USB Device */
387static struct omap_usb_config htcherald_usb_config __initdata = {
388 .otg = 0,
389 .register_host = 0,
390 .register_dev = 1,
391 .hmc_mode = 4,
392 .pins[0] = 2,
393};
394
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800395/* LCD Device resources */
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000396static struct omap_lcd_config htcherald_lcd_config __initdata = {
397 .ctrl_name = "internal",
398};
399
400static struct omap_board_config_kernel htcherald_config[] __initdata = {
401 { OMAP_TAG_LCD, &htcherald_lcd_config },
402};
403
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800404static struct platform_device lcd_device = {
405 .name = "lcd_htcherald",
406 .id = -1,
407};
408
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000409/* MMC Card */
410#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
411static struct omap_mmc_platform_data htc_mmc1_data = {
412 .nr_slots = 1,
413 .switch_slot = NULL,
414 .slots[0] = {
Tony Lindgren2a124002010-10-12 16:07:51 -0700415 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000416 .name = "mmcblk",
417 .nomux = 1,
418 .wires = 4,
419 .switch_pin = -1,
420 },
421};
422
423static struct omap_mmc_platform_data *htc_mmc_data[1];
424#endif
425
426
427/* Platform devices for the Herald */
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800428static struct platform_device *devices[] __initdata = {
429 &kp_device,
430 &lcd_device,
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000431 &htcpld_device,
432 &gpio_leds_device,
433 &herald_gpiokeys_device,
434};
435
436/*
437 * Touchscreen
438 */
439static const struct ads7846_platform_data htcherald_ts_platform_data = {
440 .model = 7846,
441 .keep_vref_on = 1,
442 .x_plate_ohms = 496,
443 .gpio_pendown = HTCHERALD_GPIO_TS,
Marek Belisko16c8a3b2010-12-06 12:49:05 +0000444 .pressure_max = 10000,
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000445 .pressure_min = 5000,
446 .x_min = 528,
447 .x_max = 3760,
448 .y_min = 624,
449 .y_max = 3760,
450};
451
452static struct spi_board_info __initdata htcherald_spi_board_info[] = {
453 {
454 .modalias = "ads7846",
455 .platform_data = &htcherald_ts_platform_data,
456 .irq = OMAP_GPIO_IRQ(HTCHERALD_GPIO_TS),
457 .max_speed_hz = 2500000,
458 .bus_num = 2,
459 .chip_select = 1,
460 }
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800461};
462
463/*
464 * Init functions from here on
465 */
466
467static void __init htcherald_lcd_init(void)
468{
469 u32 reg;
470 unsigned int tries = 200;
471
472 /* disable controller if active */
473 reg = omap_readl(OMAP_LCDC_CONTROL);
474 if (reg & OMAP_LCDC_CTRL_LCD_EN) {
475 reg &= ~OMAP_LCDC_CTRL_LCD_EN;
476 omap_writel(reg, OMAP_LCDC_CONTROL);
477
478 /* wait for end of frame */
479 while (!(omap_readl(OMAP_LCDC_STATUS) & OMAP_LCDC_STAT_DONE)) {
480 tries--;
481 if (!tries)
482 break;
483 }
484 if (!tries)
485 printk(KERN_WARNING "Timeout waiting for end of frame "
486 "-- LCD may not be available\n");
487
488 /* turn off DMA */
489 reg = omap_readw(OMAP_DMA_LCD_CCR);
490 reg &= ~(1 << 7);
491 omap_writew(reg, OMAP_DMA_LCD_CCR);
492
493 reg = omap_readw(OMAP_DMA_LCD_CTRL);
494 reg &= ~(1 << 8);
495 omap_writew(reg, OMAP_DMA_LCD_CTRL);
496 }
497}
498
499static void __init htcherald_map_io(void)
500{
Tony Lindgren7b88e622011-10-05 15:14:02 -0700501 omap7xx_map_io();
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800502
503 /*
504 * The LCD panel must be disabled and DMA turned off here, as doing
505 * it later causes the LCD never to reinitialize.
506 */
507 htcherald_lcd_init();
508
509 printk(KERN_INFO "htcherald_map_io done.\n");
510}
511
512static void __init htcherald_disable_watchdog(void)
513{
514 /* Disable watchdog if running */
515 if (omap_readl(OMAP_WDT_TIMER_MODE) & 0x8000) {
516 /*
517 * disable a potentially running watchdog timer before
518 * it kills us.
519 */
520 printk(KERN_WARNING "OMAP850 Watchdog seems to be activated, disabling it for now.\n");
521 omap_writel(0xF5, OMAP_WDT_TIMER_MODE);
522 omap_writel(0xA0, OMAP_WDT_TIMER_MODE);
523 }
524}
525
Cory Maccarrone106997c2009-12-11 16:16:34 -0800526#define HTCHERALD_GPIO_USB_EN1 33
527#define HTCHERALD_GPIO_USB_EN2 73
528#define HTCHERALD_GPIO_USB_DM 35
529#define HTCHERALD_GPIO_USB_DP 36
530
531static void __init htcherald_usb_enable(void)
532{
533 unsigned int tries = 20;
534 unsigned int value = 0;
535
536 /* Request the GPIOs we need to control here */
537 if (gpio_request(HTCHERALD_GPIO_USB_EN1, "herald_usb") < 0)
538 goto err1;
539
540 if (gpio_request(HTCHERALD_GPIO_USB_EN2, "herald_usb") < 0)
541 goto err2;
542
543 if (gpio_request(HTCHERALD_GPIO_USB_DM, "herald_usb") < 0)
544 goto err3;
545
546 if (gpio_request(HTCHERALD_GPIO_USB_DP, "herald_usb") < 0)
547 goto err4;
548
549 /* force USB_EN GPIO to 0 */
550 do {
551 /* output low */
552 gpio_direction_output(HTCHERALD_GPIO_USB_EN1, 0);
553 } while ((value = gpio_get_value(HTCHERALD_GPIO_USB_EN1)) == 1 &&
554 --tries);
555
556 if (value == 1)
557 printk(KERN_WARNING "Unable to reset USB, trying to continue\n");
558
559 gpio_direction_output(HTCHERALD_GPIO_USB_EN2, 0); /* output low */
560 gpio_direction_input(HTCHERALD_GPIO_USB_DM); /* input */
561 gpio_direction_input(HTCHERALD_GPIO_USB_DP); /* input */
562
563 goto done;
564
565err4:
566 gpio_free(HTCHERALD_GPIO_USB_DM);
567err3:
568 gpio_free(HTCHERALD_GPIO_USB_EN2);
569err2:
570 gpio_free(HTCHERALD_GPIO_USB_EN1);
571err1:
572 printk(KERN_ERR "Unabled to request GPIO for USB\n");
573done:
574 printk(KERN_INFO "USB setup complete.\n");
575}
576
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800577static void __init htcherald_init(void)
578{
579 printk(KERN_INFO "HTC Herald init.\n");
580
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000581 /* Do board initialization before we register all the devices */
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800582 omap_board_config = htcherald_config;
583 omap_board_config_size = ARRAY_SIZE(htcherald_config);
584 platform_add_devices(devices, ARRAY_SIZE(devices));
585
586 htcherald_disable_watchdog();
Cory Maccarrone106997c2009-12-11 16:16:34 -0800587
588 htcherald_usb_enable();
Tony Lindgrendd0cdd82010-07-05 16:31:30 +0300589 omap1_usb_init(&htcherald_usb_config);
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000590
591 spi_register_board_info(htcherald_spi_board_info,
592 ARRAY_SIZE(htcherald_spi_board_info));
593
594 omap_register_i2c_bus(1, 100, NULL, 0);
595
596#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
597 htc_mmc_data[0] = &htc_mmc1_data;
598 omap1_init_mmc(htc_mmc_data, 1);
599#endif
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800600}
601
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800602MACHINE_START(HERALD, "HTC Herald")
603 /* Maintainer: Cory Maccarrone <darkstar6262@gmail.com> */
604 /* Maintainer: wing-linux.sourceforge.net */
Nicolas Pitre246e3892011-07-05 22:38:15 -0400605 .atag_offset = 0x100,
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800606 .map_io = htcherald_map_io,
Tony Lindgren7b88e622011-10-05 15:14:02 -0700607 .init_early = omap1_init_early,
Russell King71ee7da2010-05-23 10:18:16 +0100608 .reserve = omap_reserve,
Tony Lindgren7b88e622011-10-05 15:14:02 -0700609 .init_irq = omap1_init_irq,
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800610 .init_machine = htcherald_init,
Tony Lindgrene74984e2011-03-29 15:54:48 -0700611 .timer = &omap1_timer,
Russell Kingbaa95882011-11-05 17:06:28 +0000612 .restart = omap1_restart,
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800613MACHINE_END