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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>
Tomi Valkeinenddba6c72011-09-20 15:23:13 +030039#include <linux/omapfb.h>
Arnd Bergmann22037472012-08-24 15:21:06 +020040#include <linux/platform_data/keypad-omap.h>
Cory Maccarrone9c2816f2009-11-22 10:11:34 -080041
42#include <asm/mach-types.h>
43#include <asm/mach/arch.h>
44
Tony Lindgren68cb7002012-08-31 17:04:35 -070045#include <mach/omap7xx.h>
Tony Lindgren68f39e72012-10-15 12:09:43 -070046#include "mmc.h"
Cory Maccarrone9c2816f2009-11-22 10:11:34 -080047
48#include <mach/irqs.h>
Tony Lindgrenb924b202012-06-04 00:56:15 -070049#include <mach/usb.h>
Cory Maccarrone9c2816f2009-11-22 10:11:34 -080050
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] = {
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000326 .flags = IORESOURCE_IRQ,
327 },
328};
329
Aaro Koskinen140089d2011-01-27 16:39:44 -0800330static struct htcpld_chip_platform_data htcpld_chips[] = {
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000331 [0] = {
332 .addr = 0x03,
333 .reset = 0x04,
334 .num_gpios = 8,
335 .gpio_out_base = HTCPLD_BASE(0, 0),
336 .gpio_in_base = HTCPLD_BASE(4, 0),
337 },
338 [1] = {
339 .addr = 0x04,
340 .reset = 0x8e,
341 .num_gpios = 8,
342 .gpio_out_base = HTCPLD_BASE(1, 0),
343 .gpio_in_base = HTCPLD_BASE(5, 0),
344 },
345 [2] = {
346 .addr = 0x05,
347 .reset = 0x80,
348 .num_gpios = 8,
349 .gpio_out_base = HTCPLD_BASE(2, 0),
350 .gpio_in_base = HTCPLD_BASE(6, 0),
351 .irq_base = HTCPLD_IRQ(0, 0),
352 .num_irqs = 8,
353 },
354 [3] = {
355 .addr = 0x06,
356 .reset = 0x40,
357 .num_gpios = 8,
358 .gpio_out_base = HTCPLD_BASE(3, 0),
359 .gpio_in_base = HTCPLD_BASE(7, 0),
360 .irq_base = HTCPLD_IRQ(1, 0),
361 .num_irqs = 8,
362 },
363};
364
Aaro Koskinen140089d2011-01-27 16:39:44 -0800365static struct htcpld_core_platform_data htcpld_pfdata = {
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000366 .int_reset_gpio_hi = HTCPLD_GPIO_INT_RESET_HI,
367 .int_reset_gpio_lo = HTCPLD_GPIO_INT_RESET_LO,
368 .i2c_adapter_id = 1,
369
370 .chip = htcpld_chips,
371 .num_chip = ARRAY_SIZE(htcpld_chips),
372};
373
374static struct platform_device htcpld_device = {
375 .name = "i2c-htcpld",
376 .id = -1,
377 .resource = htcpld_resources,
378 .num_resources = ARRAY_SIZE(htcpld_resources),
379 .dev = {
380 .platform_data = &htcpld_pfdata,
381 },
382};
383
Cory Maccarrone106997c2009-12-11 16:16:34 -0800384/* USB Device */
385static struct omap_usb_config htcherald_usb_config __initdata = {
386 .otg = 0,
387 .register_host = 0,
388 .register_dev = 1,
389 .hmc_mode = 4,
390 .pins[0] = 2,
391};
392
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800393/* LCD Device resources */
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000394static struct omap_lcd_config htcherald_lcd_config __initdata = {
395 .ctrl_name = "internal",
396};
397
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800398static struct platform_device lcd_device = {
399 .name = "lcd_htcherald",
400 .id = -1,
401};
402
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000403/* MMC Card */
404#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
405static struct omap_mmc_platform_data htc_mmc1_data = {
406 .nr_slots = 1,
407 .switch_slot = NULL,
408 .slots[0] = {
Tony Lindgren2a124002010-10-12 16:07:51 -0700409 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000410 .name = "mmcblk",
411 .nomux = 1,
412 .wires = 4,
413 .switch_pin = -1,
414 },
415};
416
417static struct omap_mmc_platform_data *htc_mmc_data[1];
418#endif
419
420
421/* Platform devices for the Herald */
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800422static struct platform_device *devices[] __initdata = {
423 &kp_device,
424 &lcd_device,
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000425 &htcpld_device,
426 &gpio_leds_device,
427 &herald_gpiokeys_device,
428};
429
430/*
431 * Touchscreen
432 */
433static const struct ads7846_platform_data htcherald_ts_platform_data = {
434 .model = 7846,
435 .keep_vref_on = 1,
436 .x_plate_ohms = 496,
437 .gpio_pendown = HTCHERALD_GPIO_TS,
Marek Belisko16c8a3b2010-12-06 12:49:05 +0000438 .pressure_max = 10000,
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000439 .pressure_min = 5000,
440 .x_min = 528,
441 .x_max = 3760,
442 .y_min = 624,
443 .y_max = 3760,
444};
445
446static struct spi_board_info __initdata htcherald_spi_board_info[] = {
447 {
448 .modalias = "ads7846",
449 .platform_data = &htcherald_ts_platform_data,
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000450 .max_speed_hz = 2500000,
451 .bus_num = 2,
452 .chip_select = 1,
453 }
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800454};
455
456/*
457 * Init functions from here on
458 */
459
460static void __init htcherald_lcd_init(void)
461{
462 u32 reg;
463 unsigned int tries = 200;
464
465 /* disable controller if active */
466 reg = omap_readl(OMAP_LCDC_CONTROL);
467 if (reg & OMAP_LCDC_CTRL_LCD_EN) {
468 reg &= ~OMAP_LCDC_CTRL_LCD_EN;
469 omap_writel(reg, OMAP_LCDC_CONTROL);
470
471 /* wait for end of frame */
472 while (!(omap_readl(OMAP_LCDC_STATUS) & OMAP_LCDC_STAT_DONE)) {
473 tries--;
474 if (!tries)
475 break;
476 }
477 if (!tries)
Paul Walmsley7852ec02012-07-26 00:54:26 -0600478 pr_err("Timeout waiting for end of frame -- LCD may not be available\n");
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800479
480 /* turn off DMA */
481 reg = omap_readw(OMAP_DMA_LCD_CCR);
482 reg &= ~(1 << 7);
483 omap_writew(reg, OMAP_DMA_LCD_CCR);
484
485 reg = omap_readw(OMAP_DMA_LCD_CTRL);
486 reg &= ~(1 << 8);
487 omap_writew(reg, OMAP_DMA_LCD_CTRL);
488 }
489}
490
491static void __init htcherald_map_io(void)
492{
Tony Lindgren7b88e622011-10-05 15:14:02 -0700493 omap7xx_map_io();
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800494
495 /*
496 * The LCD panel must be disabled and DMA turned off here, as doing
497 * it later causes the LCD never to reinitialize.
498 */
499 htcherald_lcd_init();
500
501 printk(KERN_INFO "htcherald_map_io done.\n");
502}
503
504static void __init htcherald_disable_watchdog(void)
505{
506 /* Disable watchdog if running */
507 if (omap_readl(OMAP_WDT_TIMER_MODE) & 0x8000) {
508 /*
509 * disable a potentially running watchdog timer before
510 * it kills us.
511 */
512 printk(KERN_WARNING "OMAP850 Watchdog seems to be activated, disabling it for now.\n");
513 omap_writel(0xF5, OMAP_WDT_TIMER_MODE);
514 omap_writel(0xA0, OMAP_WDT_TIMER_MODE);
515 }
516}
517
Cory Maccarrone106997c2009-12-11 16:16:34 -0800518#define HTCHERALD_GPIO_USB_EN1 33
519#define HTCHERALD_GPIO_USB_EN2 73
520#define HTCHERALD_GPIO_USB_DM 35
521#define HTCHERALD_GPIO_USB_DP 36
522
523static void __init htcherald_usb_enable(void)
524{
525 unsigned int tries = 20;
526 unsigned int value = 0;
527
528 /* Request the GPIOs we need to control here */
529 if (gpio_request(HTCHERALD_GPIO_USB_EN1, "herald_usb") < 0)
530 goto err1;
531
532 if (gpio_request(HTCHERALD_GPIO_USB_EN2, "herald_usb") < 0)
533 goto err2;
534
535 if (gpio_request(HTCHERALD_GPIO_USB_DM, "herald_usb") < 0)
536 goto err3;
537
538 if (gpio_request(HTCHERALD_GPIO_USB_DP, "herald_usb") < 0)
539 goto err4;
540
541 /* force USB_EN GPIO to 0 */
542 do {
543 /* output low */
544 gpio_direction_output(HTCHERALD_GPIO_USB_EN1, 0);
545 } while ((value = gpio_get_value(HTCHERALD_GPIO_USB_EN1)) == 1 &&
546 --tries);
547
548 if (value == 1)
549 printk(KERN_WARNING "Unable to reset USB, trying to continue\n");
550
551 gpio_direction_output(HTCHERALD_GPIO_USB_EN2, 0); /* output low */
552 gpio_direction_input(HTCHERALD_GPIO_USB_DM); /* input */
553 gpio_direction_input(HTCHERALD_GPIO_USB_DP); /* input */
554
555 goto done;
556
557err4:
558 gpio_free(HTCHERALD_GPIO_USB_DM);
559err3:
560 gpio_free(HTCHERALD_GPIO_USB_EN2);
561err2:
562 gpio_free(HTCHERALD_GPIO_USB_EN1);
563err1:
564 printk(KERN_ERR "Unabled to request GPIO for USB\n");
565done:
566 printk(KERN_INFO "USB setup complete.\n");
567}
568
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800569static void __init htcherald_init(void)
570{
571 printk(KERN_INFO "HTC Herald init.\n");
572
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000573 /* Do board initialization before we register all the devices */
Tarun Kanti DebBarma46a0a542012-03-29 08:41:01 -0700574 htcpld_resources[0].start = gpio_to_irq(HTCHERALD_GIRQ_BTNS);
575 htcpld_resources[0].end = gpio_to_irq(HTCHERALD_GIRQ_BTNS);
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800576 platform_add_devices(devices, ARRAY_SIZE(devices));
577
578 htcherald_disable_watchdog();
Cory Maccarrone106997c2009-12-11 16:16:34 -0800579
580 htcherald_usb_enable();
Tony Lindgrendd0cdd82010-07-05 16:31:30 +0300581 omap1_usb_init(&htcherald_usb_config);
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000582
Tarun Kanti DebBarma46a0a542012-03-29 08:41:01 -0700583 htcherald_spi_board_info[0].irq = gpio_to_irq(HTCHERALD_GPIO_TS);
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000584 spi_register_board_info(htcherald_spi_board_info,
585 ARRAY_SIZE(htcherald_spi_board_info));
586
587 omap_register_i2c_bus(1, 100, NULL, 0);
588
589#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
590 htc_mmc_data[0] = &htc_mmc1_data;
591 omap1_init_mmc(htc_mmc_data, 1);
592#endif
Tomi Valkeinenddba6c72011-09-20 15:23:13 +0300593
594 omapfb_set_lcd_config(&htcherald_lcd_config);
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800595}
596
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800597MACHINE_START(HERALD, "HTC Herald")
598 /* Maintainer: Cory Maccarrone <darkstar6262@gmail.com> */
599 /* Maintainer: wing-linux.sourceforge.net */
Nicolas Pitre246e3892011-07-05 22:38:15 -0400600 .atag_offset = 0x100,
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800601 .map_io = htcherald_map_io,
Tony Lindgren7b88e622011-10-05 15:14:02 -0700602 .init_early = omap1_init_early,
Tony Lindgren7b88e622011-10-05 15:14:02 -0700603 .init_irq = omap1_init_irq,
Tony Lindgrenb6943312015-05-20 09:01:21 -0700604 .handle_irq = omap1_handle_irq,
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800605 .init_machine = htcherald_init,
Shawn Guo82c3bd02012-04-26 13:49:29 +0800606 .init_late = omap1_init_late,
Stephen Warren6bb27d72012-11-08 12:40:59 -0700607 .init_time = omap1_timer_init,
Russell Kingbaa95882011-11-05 17:06:28 +0000608 .restart = omap1_restart,
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800609MACHINE_END