blob: 258304edf23ea99b851508d9a02e948ce385e6c4 [file] [log] [blame]
Thomas Gleixner16216332019-05-19 15:51:31 +02001// SPDX-License-Identifier: GPL-2.0-or-later
Cory Maccarrone9c2816f2009-11-22 10:11:34 -08002/*
3 * HTC Herald board configuration
4 * Copyright (C) 2009 Cory Maccarrone <darkstar6262@gmail.com>
5 * Copyright (C) 2009 Wing Linux
6 *
7 * Based on the board-htcwizard.c file from the linwizard project:
8 * Copyright (C) 2006 Unai Uribarri
9 * Copyright (C) 2008 linwizard.sourceforge.net
Cory Maccarrone9c2816f2009-11-22 10:11:34 -080010 */
Cory Maccarrone9c2816f2009-11-22 10:11:34 -080011#include <linux/kernel.h>
12#include <linux/init.h>
13#include <linux/platform_device.h>
14#include <linux/input.h>
Tony Lindgren2e3ee9f2012-02-24 10:34:34 -080015#include <linux/delay.h>
Cory Maccarrone9c2816f2009-11-22 10:11:34 -080016#include <linux/gpio.h>
Cory Maccarrone493c32a2010-08-18 04:35:46 +000017#include <linux/gpio_keys.h>
18#include <linux/i2c.h>
Wolfram Sang1e9d4212018-04-19 22:00:07 +020019#include <linux/platform_data/i2c-gpio.h>
Cory Maccarrone493c32a2010-08-18 04:35:46 +000020#include <linux/htcpld.h>
21#include <linux/leds.h>
22#include <linux/spi/spi.h>
23#include <linux/spi/ads7846.h>
Tomi Valkeinenddba6c72011-09-20 15:23:13 +030024#include <linux/omapfb.h>
Arnd Bergmann22037472012-08-24 15:21:06 +020025#include <linux/platform_data/keypad-omap.h>
Cory Maccarrone9c2816f2009-11-22 10:11:34 -080026
27#include <asm/mach-types.h>
28#include <asm/mach/arch.h>
29
Tony Lindgren68cb7002012-08-31 17:04:35 -070030#include <mach/omap7xx.h>
Tony Lindgren68f39e72012-10-15 12:09:43 -070031#include "mmc.h"
Cory Maccarrone9c2816f2009-11-22 10:11:34 -080032
33#include <mach/irqs.h>
Tony Lindgrenb924b202012-06-04 00:56:15 -070034#include <mach/usb.h>
Cory Maccarrone9c2816f2009-11-22 10:11:34 -080035
Tony Lindgren2e3ee9f2012-02-24 10:34:34 -080036#include "common.h"
Cory Maccarrone9c2816f2009-11-22 10:11:34 -080037
38/* LCD register definition */
39#define OMAP_LCDC_CONTROL (0xfffec000 + 0x00)
40#define OMAP_LCDC_STATUS (0xfffec000 + 0x10)
41#define OMAP_DMA_LCD_CCR (0xfffee300 + 0xc2)
42#define OMAP_DMA_LCD_CTRL (0xfffee300 + 0xc4)
43#define OMAP_LCDC_CTRL_LCD_EN (1 << 0)
44#define OMAP_LCDC_STAT_DONE (1 << 0)
45
Cory Maccarrone493c32a2010-08-18 04:35:46 +000046/* GPIO definitions for the power button and keyboard slide switch */
47#define HTCHERALD_GPIO_POWER 139
48#define HTCHERALD_GPIO_SLIDE 174
49#define HTCHERALD_GIRQ_BTNS 141
Cory Maccarrone9c2816f2009-11-22 10:11:34 -080050
Cory Maccarrone493c32a2010-08-18 04:35:46 +000051/* GPIO definitions for the touchscreen */
52#define HTCHERALD_GPIO_TS 76
53
54/* HTCPLD definitions */
55
56/*
57 * CPLD Logic
58 *
59 * Chip 3 - 0x03
60 *
61 * Function 7 6 5 4 3 2 1 0
62 * ------------------------------------
63 * DPAD light x x x x x x x 1
64 * SoundDev x x x x 1 x x x
65 * Screen white 1 x x x x x x x
66 * MMC power on x x x x x 1 x x
67 * Happy times (n) 0 x x x x 1 x x
68 *
69 * Chip 4 - 0x04
70 *
71 * Function 7 6 5 4 3 2 1 0
72 * ------------------------------------
73 * Keyboard light x x x x x x x 1
74 * LCD Bright (4) x x x x x 1 1 x
75 * LCD Bright (3) x x x x x 0 1 x
76 * LCD Bright (2) x x x x x 1 0 x
77 * LCD Bright (1) x x x x x 0 0 x
78 * LCD Off x x x x 0 x x x
79 * LCD image (fb) 1 x x x x x x x
80 * LCD image (white) 0 x x x x x x x
81 * Caps lock LED x x 1 x x x x x
82 *
83 * Chip 5 - 0x05
84 *
85 * Function 7 6 5 4 3 2 1 0
86 * ------------------------------------
87 * Red (solid) x x x x x 1 x x
88 * Red (flash) x x x x x x 1 x
89 * Green (GSM flash) x x x x 1 x x x
90 * Green (GSM solid) x x x 1 x x x x
91 * Green (wifi flash) x x 1 x x x x x
92 * Blue (bt flash) x 1 x x x x x x
93 * DPAD Int Enable 1 x x x x x x 0
94 *
95 * (Combinations of the above can be made for different colors.)
96 * The direction pad interrupt enable must be set each time the
97 * interrupt is handled.
98 *
99 * Chip 6 - 0x06
100 *
101 * Function 7 6 5 4 3 2 1 0
102 * ------------------------------------
103 * Vibrator x x x x 1 x x x
104 * Alt LED x x x 1 x x x x
105 * Screen white 1 x x x x x x x
106 * Screen white x x 1 x x x x x
107 * Screen white x 0 x x x x x x
108 * Enable kbd dpad x x x x x x 0 x
109 * Happy Times 0 1 0 x x x 0 x
110 */
111
112/*
113 * HTCPLD GPIO lines start 16 after OMAP_MAX_GPIO_LINES to account
114 * for the 16 MPUIO lines.
115 */
116#define HTCPLD_GPIO_START_OFFSET (OMAP_MAX_GPIO_LINES + 16)
117#define HTCPLD_IRQ(chip, offset) (OMAP_IRQ_END + 8 * (chip) + (offset))
118#define HTCPLD_BASE(chip, offset) \
119 (HTCPLD_GPIO_START_OFFSET + 8 * (chip) + (offset))
120
121#define HTCPLD_GPIO_LED_DPAD HTCPLD_BASE(0, 0)
122#define HTCPLD_GPIO_LED_KBD HTCPLD_BASE(1, 0)
123#define HTCPLD_GPIO_LED_CAPS HTCPLD_BASE(1, 5)
124#define HTCPLD_GPIO_LED_RED_FLASH HTCPLD_BASE(2, 1)
125#define HTCPLD_GPIO_LED_RED_SOLID HTCPLD_BASE(2, 2)
126#define HTCPLD_GPIO_LED_GREEN_FLASH HTCPLD_BASE(2, 3)
127#define HTCPLD_GPIO_LED_GREEN_SOLID HTCPLD_BASE(2, 4)
128#define HTCPLD_GPIO_LED_WIFI HTCPLD_BASE(2, 5)
129#define HTCPLD_GPIO_LED_BT HTCPLD_BASE(2, 6)
130#define HTCPLD_GPIO_LED_VIBRATE HTCPLD_BASE(3, 3)
131#define HTCPLD_GPIO_LED_ALT HTCPLD_BASE(3, 4)
132
133#define HTCPLD_GPIO_RIGHT_KBD HTCPLD_BASE(6, 7)
134#define HTCPLD_GPIO_UP_KBD HTCPLD_BASE(6, 6)
135#define HTCPLD_GPIO_LEFT_KBD HTCPLD_BASE(6, 5)
136#define HTCPLD_GPIO_DOWN_KBD HTCPLD_BASE(6, 4)
137
138#define HTCPLD_GPIO_RIGHT_DPAD HTCPLD_BASE(7, 7)
139#define HTCPLD_GPIO_UP_DPAD HTCPLD_BASE(7, 6)
140#define HTCPLD_GPIO_LEFT_DPAD HTCPLD_BASE(7, 5)
141#define HTCPLD_GPIO_DOWN_DPAD HTCPLD_BASE(7, 4)
142#define HTCPLD_GPIO_ENTER_DPAD HTCPLD_BASE(7, 3)
143
144/*
145 * The htcpld chip requires a gpio write to a specific line
146 * to re-enable interrupts after one has occurred.
147 */
148#define HTCPLD_GPIO_INT_RESET_HI HTCPLD_BASE(2, 7)
149#define HTCPLD_GPIO_INT_RESET_LO HTCPLD_BASE(2, 0)
150
151/* Chip 5 */
152#define HTCPLD_IRQ_RIGHT_KBD HTCPLD_IRQ(0, 7)
153#define HTCPLD_IRQ_UP_KBD HTCPLD_IRQ(0, 6)
154#define HTCPLD_IRQ_LEFT_KBD HTCPLD_IRQ(0, 5)
155#define HTCPLD_IRQ_DOWN_KBD HTCPLD_IRQ(0, 4)
156
157/* Chip 6 */
158#define HTCPLD_IRQ_RIGHT_DPAD HTCPLD_IRQ(1, 7)
159#define HTCPLD_IRQ_UP_DPAD HTCPLD_IRQ(1, 6)
160#define HTCPLD_IRQ_LEFT_DPAD HTCPLD_IRQ(1, 5)
161#define HTCPLD_IRQ_DOWN_DPAD HTCPLD_IRQ(1, 4)
162#define HTCPLD_IRQ_ENTER_DPAD HTCPLD_IRQ(1, 3)
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800163
164/* Keyboard definition */
165
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000166static const unsigned int htc_herald_keymap[] = {
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800167 KEY(0, 0, KEY_RECORD), /* Mail button */
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000168 KEY(1, 0, KEY_CAMERA), /* Camera */
169 KEY(2, 0, KEY_PHONE), /* Send key */
170 KEY(3, 0, KEY_VOLUMEUP), /* Volume up */
171 KEY(4, 0, KEY_F2), /* Right bar (landscape) */
172 KEY(5, 0, KEY_MAIL), /* Win key (portrait) */
173 KEY(6, 0, KEY_DIRECTORY), /* Right bar (protrait) */
174 KEY(0, 1, KEY_LEFTCTRL), /* Windows key */
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800175 KEY(1, 1, KEY_COMMA),
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000176 KEY(2, 1, KEY_M),
177 KEY(3, 1, KEY_K),
178 KEY(4, 1, KEY_SLASH), /* OK key */
179 KEY(5, 1, KEY_I),
180 KEY(6, 1, KEY_U),
181 KEY(0, 2, KEY_LEFTALT),
182 KEY(1, 2, KEY_TAB),
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800183 KEY(2, 2, KEY_N),
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000184 KEY(3, 2, KEY_J),
185 KEY(4, 2, KEY_ENTER),
186 KEY(5, 2, KEY_H),
187 KEY(6, 2, KEY_Y),
188 KEY(0, 3, KEY_SPACE),
189 KEY(1, 3, KEY_L),
190 KEY(2, 3, KEY_B),
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800191 KEY(3, 3, KEY_V),
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000192 KEY(4, 3, KEY_BACKSPACE),
193 KEY(5, 3, KEY_G),
194 KEY(6, 3, KEY_T),
195 KEY(0, 4, KEY_CAPSLOCK), /* Shift */
196 KEY(1, 4, KEY_C),
197 KEY(2, 4, KEY_F),
198 KEY(3, 4, KEY_R),
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800199 KEY(4, 4, KEY_O),
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000200 KEY(5, 4, KEY_E),
201 KEY(6, 4, KEY_D),
202 KEY(0, 5, KEY_X),
203 KEY(1, 5, KEY_Z),
204 KEY(2, 5, KEY_S),
205 KEY(3, 5, KEY_W),
206 KEY(4, 5, KEY_P),
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800207 KEY(5, 5, KEY_Q),
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000208 KEY(6, 5, KEY_A),
209 KEY(0, 6, KEY_CONNECT), /* Voice button */
210 KEY(2, 6, KEY_CANCEL), /* End key */
211 KEY(3, 6, KEY_VOLUMEDOWN), /* Volume down */
212 KEY(4, 6, KEY_F1), /* Left bar (landscape) */
213 KEY(5, 6, KEY_WWW), /* OK button (portrait) */
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800214 KEY(6, 6, KEY_CALENDAR), /* Left bar (portrait) */
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800215};
216
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000217static const struct matrix_keymap_data htc_herald_keymap_data = {
218 .keymap = htc_herald_keymap,
219 .keymap_size = ARRAY_SIZE(htc_herald_keymap),
220};
221
222static struct omap_kp_platform_data htcherald_kp_data = {
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800223 .rows = 7,
224 .cols = 7,
225 .delay = 20,
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000226 .rep = true,
227 .keymap_data = &htc_herald_keymap_data,
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800228};
229
230static struct resource kp_resources[] = {
231 [0] = {
232 .start = INT_7XX_MPUIO_KEYPAD,
233 .end = INT_7XX_MPUIO_KEYPAD,
234 .flags = IORESOURCE_IRQ,
235 },
236};
237
238static struct platform_device kp_device = {
239 .name = "omap-keypad",
240 .id = -1,
241 .dev = {
242 .platform_data = &htcherald_kp_data,
243 },
244 .num_resources = ARRAY_SIZE(kp_resources),
245 .resource = kp_resources,
246};
247
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000248/* GPIO buttons for keyboard slide and power button */
249static struct gpio_keys_button herald_gpio_keys_table[] = {
250 {BTN_0, HTCHERALD_GPIO_POWER, 1, "POWER", EV_KEY, 1, 20},
251 {SW_LID, HTCHERALD_GPIO_SLIDE, 0, "SLIDE", EV_SW, 1, 20},
252
253 {KEY_LEFT, HTCPLD_GPIO_LEFT_KBD, 1, "LEFT", EV_KEY, 1, 20},
254 {KEY_RIGHT, HTCPLD_GPIO_RIGHT_KBD, 1, "RIGHT", EV_KEY, 1, 20},
255 {KEY_UP, HTCPLD_GPIO_UP_KBD, 1, "UP", EV_KEY, 1, 20},
256 {KEY_DOWN, HTCPLD_GPIO_DOWN_KBD, 1, "DOWN", EV_KEY, 1, 20},
257
258 {KEY_LEFT, HTCPLD_GPIO_LEFT_DPAD, 1, "DLEFT", EV_KEY, 1, 20},
259 {KEY_RIGHT, HTCPLD_GPIO_RIGHT_DPAD, 1, "DRIGHT", EV_KEY, 1, 20},
260 {KEY_UP, HTCPLD_GPIO_UP_DPAD, 1, "DUP", EV_KEY, 1, 20},
261 {KEY_DOWN, HTCPLD_GPIO_DOWN_DPAD, 1, "DDOWN", EV_KEY, 1, 20},
262 {KEY_ENTER, HTCPLD_GPIO_ENTER_DPAD, 1, "DENTER", EV_KEY, 1, 20},
263};
264
265static struct gpio_keys_platform_data herald_gpio_keys_data = {
266 .buttons = herald_gpio_keys_table,
267 .nbuttons = ARRAY_SIZE(herald_gpio_keys_table),
Janusz Krzysztofikda1f0262010-12-20 21:09:22 +0000268 .rep = true,
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000269};
270
271static struct platform_device herald_gpiokeys_device = {
272 .name = "gpio-keys",
273 .id = -1,
274 .dev = {
275 .platform_data = &herald_gpio_keys_data,
276 },
277};
278
279/* LEDs for the Herald. These connect to the HTCPLD GPIO device. */
Arvind Yadav40dda872017-12-26 12:07:11 +0530280static const struct gpio_led gpio_leds[] = {
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000281 {"dpad", NULL, HTCPLD_GPIO_LED_DPAD, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
282 {"kbd", NULL, HTCPLD_GPIO_LED_KBD, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
283 {"vibrate", NULL, HTCPLD_GPIO_LED_VIBRATE, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
284 {"green_solid", NULL, HTCPLD_GPIO_LED_GREEN_SOLID, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
285 {"green_flash", NULL, HTCPLD_GPIO_LED_GREEN_FLASH, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
286 {"red_solid", "mmc0", HTCPLD_GPIO_LED_RED_SOLID, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
287 {"red_flash", NULL, HTCPLD_GPIO_LED_RED_FLASH, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
288 {"wifi", NULL, HTCPLD_GPIO_LED_WIFI, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
289 {"bt", NULL, HTCPLD_GPIO_LED_BT, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
290 {"caps", NULL, HTCPLD_GPIO_LED_CAPS, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
291 {"alt", NULL, HTCPLD_GPIO_LED_ALT, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
292};
293
294static struct gpio_led_platform_data gpio_leds_data = {
295 .leds = gpio_leds,
296 .num_leds = ARRAY_SIZE(gpio_leds),
297};
298
299static struct platform_device gpio_leds_device = {
300 .name = "leds-gpio",
301 .id = 0,
302 .dev = {
303 .platform_data = &gpio_leds_data,
304 },
305};
306
307/* HTC PLD chips */
308
309static struct resource htcpld_resources[] = {
310 [0] = {
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000311 .flags = IORESOURCE_IRQ,
312 },
313};
314
Aaro Koskinen140089d2011-01-27 16:39:44 -0800315static struct htcpld_chip_platform_data htcpld_chips[] = {
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000316 [0] = {
317 .addr = 0x03,
318 .reset = 0x04,
319 .num_gpios = 8,
320 .gpio_out_base = HTCPLD_BASE(0, 0),
321 .gpio_in_base = HTCPLD_BASE(4, 0),
322 },
323 [1] = {
324 .addr = 0x04,
325 .reset = 0x8e,
326 .num_gpios = 8,
327 .gpio_out_base = HTCPLD_BASE(1, 0),
328 .gpio_in_base = HTCPLD_BASE(5, 0),
329 },
330 [2] = {
331 .addr = 0x05,
332 .reset = 0x80,
333 .num_gpios = 8,
334 .gpio_out_base = HTCPLD_BASE(2, 0),
335 .gpio_in_base = HTCPLD_BASE(6, 0),
336 .irq_base = HTCPLD_IRQ(0, 0),
337 .num_irqs = 8,
338 },
339 [3] = {
340 .addr = 0x06,
341 .reset = 0x40,
342 .num_gpios = 8,
343 .gpio_out_base = HTCPLD_BASE(3, 0),
344 .gpio_in_base = HTCPLD_BASE(7, 0),
345 .irq_base = HTCPLD_IRQ(1, 0),
346 .num_irqs = 8,
347 },
348};
349
Aaro Koskinen140089d2011-01-27 16:39:44 -0800350static struct htcpld_core_platform_data htcpld_pfdata = {
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000351 .int_reset_gpio_hi = HTCPLD_GPIO_INT_RESET_HI,
352 .int_reset_gpio_lo = HTCPLD_GPIO_INT_RESET_LO,
353 .i2c_adapter_id = 1,
354
355 .chip = htcpld_chips,
356 .num_chip = ARRAY_SIZE(htcpld_chips),
357};
358
359static struct platform_device htcpld_device = {
360 .name = "i2c-htcpld",
361 .id = -1,
362 .resource = htcpld_resources,
363 .num_resources = ARRAY_SIZE(htcpld_resources),
364 .dev = {
365 .platform_data = &htcpld_pfdata,
366 },
367};
368
Cory Maccarrone106997c2009-12-11 16:16:34 -0800369/* USB Device */
370static struct omap_usb_config htcherald_usb_config __initdata = {
371 .otg = 0,
372 .register_host = 0,
373 .register_dev = 1,
374 .hmc_mode = 4,
375 .pins[0] = 2,
376};
377
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800378/* LCD Device resources */
Bhumika Goyald25c70c2017-08-22 11:55:50 +0530379static const struct omap_lcd_config htcherald_lcd_config __initconst = {
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000380 .ctrl_name = "internal",
381};
382
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800383static struct platform_device lcd_device = {
384 .name = "lcd_htcherald",
385 .id = -1,
386};
387
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000388/* MMC Card */
Javier Martinez Canillasfcebddb2016-08-11 15:29:44 -0400389#if IS_ENABLED(CONFIG_MMC_OMAP)
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000390static struct omap_mmc_platform_data htc_mmc1_data = {
391 .nr_slots = 1,
392 .switch_slot = NULL,
393 .slots[0] = {
Tony Lindgren2a124002010-10-12 16:07:51 -0700394 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000395 .name = "mmcblk",
396 .nomux = 1,
397 .wires = 4,
398 .switch_pin = -1,
399 },
400};
401
402static struct omap_mmc_platform_data *htc_mmc_data[1];
403#endif
404
405
406/* Platform devices for the Herald */
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800407static struct platform_device *devices[] __initdata = {
408 &kp_device,
409 &lcd_device,
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000410 &htcpld_device,
411 &gpio_leds_device,
412 &herald_gpiokeys_device,
413};
414
415/*
416 * Touchscreen
417 */
418static const struct ads7846_platform_data htcherald_ts_platform_data = {
419 .model = 7846,
420 .keep_vref_on = 1,
421 .x_plate_ohms = 496,
422 .gpio_pendown = HTCHERALD_GPIO_TS,
Marek Belisko16c8a3b2010-12-06 12:49:05 +0000423 .pressure_max = 10000,
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000424 .pressure_min = 5000,
425 .x_min = 528,
426 .x_max = 3760,
427 .y_min = 624,
428 .y_max = 3760,
429};
430
431static struct spi_board_info __initdata htcherald_spi_board_info[] = {
432 {
433 .modalias = "ads7846",
434 .platform_data = &htcherald_ts_platform_data,
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000435 .max_speed_hz = 2500000,
436 .bus_num = 2,
437 .chip_select = 1,
438 }
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800439};
440
441/*
442 * Init functions from here on
443 */
444
445static void __init htcherald_lcd_init(void)
446{
447 u32 reg;
448 unsigned int tries = 200;
449
450 /* disable controller if active */
451 reg = omap_readl(OMAP_LCDC_CONTROL);
452 if (reg & OMAP_LCDC_CTRL_LCD_EN) {
453 reg &= ~OMAP_LCDC_CTRL_LCD_EN;
454 omap_writel(reg, OMAP_LCDC_CONTROL);
455
456 /* wait for end of frame */
457 while (!(omap_readl(OMAP_LCDC_STATUS) & OMAP_LCDC_STAT_DONE)) {
458 tries--;
459 if (!tries)
460 break;
461 }
462 if (!tries)
Paul Walmsley7852ec02012-07-26 00:54:26 -0600463 pr_err("Timeout waiting for end of frame -- LCD may not be available\n");
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800464
465 /* turn off DMA */
466 reg = omap_readw(OMAP_DMA_LCD_CCR);
467 reg &= ~(1 << 7);
468 omap_writew(reg, OMAP_DMA_LCD_CCR);
469
470 reg = omap_readw(OMAP_DMA_LCD_CTRL);
471 reg &= ~(1 << 8);
472 omap_writew(reg, OMAP_DMA_LCD_CTRL);
473 }
474}
475
476static void __init htcherald_map_io(void)
477{
Tony Lindgren7b88e622011-10-05 15:14:02 -0700478 omap7xx_map_io();
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800479
480 /*
481 * The LCD panel must be disabled and DMA turned off here, as doing
482 * it later causes the LCD never to reinitialize.
483 */
484 htcherald_lcd_init();
485
486 printk(KERN_INFO "htcherald_map_io done.\n");
487}
488
489static void __init htcherald_disable_watchdog(void)
490{
491 /* Disable watchdog if running */
492 if (omap_readl(OMAP_WDT_TIMER_MODE) & 0x8000) {
493 /*
494 * disable a potentially running watchdog timer before
495 * it kills us.
496 */
497 printk(KERN_WARNING "OMAP850 Watchdog seems to be activated, disabling it for now.\n");
498 omap_writel(0xF5, OMAP_WDT_TIMER_MODE);
499 omap_writel(0xA0, OMAP_WDT_TIMER_MODE);
500 }
501}
502
Cory Maccarrone106997c2009-12-11 16:16:34 -0800503#define HTCHERALD_GPIO_USB_EN1 33
504#define HTCHERALD_GPIO_USB_EN2 73
505#define HTCHERALD_GPIO_USB_DM 35
506#define HTCHERALD_GPIO_USB_DP 36
507
508static void __init htcherald_usb_enable(void)
509{
510 unsigned int tries = 20;
511 unsigned int value = 0;
512
513 /* Request the GPIOs we need to control here */
514 if (gpio_request(HTCHERALD_GPIO_USB_EN1, "herald_usb") < 0)
515 goto err1;
516
517 if (gpio_request(HTCHERALD_GPIO_USB_EN2, "herald_usb") < 0)
518 goto err2;
519
520 if (gpio_request(HTCHERALD_GPIO_USB_DM, "herald_usb") < 0)
521 goto err3;
522
523 if (gpio_request(HTCHERALD_GPIO_USB_DP, "herald_usb") < 0)
524 goto err4;
525
526 /* force USB_EN GPIO to 0 */
527 do {
528 /* output low */
529 gpio_direction_output(HTCHERALD_GPIO_USB_EN1, 0);
530 } while ((value = gpio_get_value(HTCHERALD_GPIO_USB_EN1)) == 1 &&
531 --tries);
532
533 if (value == 1)
534 printk(KERN_WARNING "Unable to reset USB, trying to continue\n");
535
536 gpio_direction_output(HTCHERALD_GPIO_USB_EN2, 0); /* output low */
537 gpio_direction_input(HTCHERALD_GPIO_USB_DM); /* input */
538 gpio_direction_input(HTCHERALD_GPIO_USB_DP); /* input */
539
540 goto done;
541
542err4:
543 gpio_free(HTCHERALD_GPIO_USB_DM);
544err3:
545 gpio_free(HTCHERALD_GPIO_USB_EN2);
546err2:
547 gpio_free(HTCHERALD_GPIO_USB_EN1);
548err1:
549 printk(KERN_ERR "Unabled to request GPIO for USB\n");
550done:
551 printk(KERN_INFO "USB setup complete.\n");
552}
553
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800554static void __init htcherald_init(void)
555{
556 printk(KERN_INFO "HTC Herald init.\n");
557
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000558 /* Do board initialization before we register all the devices */
Tarun Kanti DebBarma46a0a542012-03-29 08:41:01 -0700559 htcpld_resources[0].start = gpio_to_irq(HTCHERALD_GIRQ_BTNS);
560 htcpld_resources[0].end = gpio_to_irq(HTCHERALD_GIRQ_BTNS);
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800561 platform_add_devices(devices, ARRAY_SIZE(devices));
562
563 htcherald_disable_watchdog();
Cory Maccarrone106997c2009-12-11 16:16:34 -0800564
565 htcherald_usb_enable();
Tony Lindgrendd0cdd82010-07-05 16:31:30 +0300566 omap1_usb_init(&htcherald_usb_config);
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000567
Tarun Kanti DebBarma46a0a542012-03-29 08:41:01 -0700568 htcherald_spi_board_info[0].irq = gpio_to_irq(HTCHERALD_GPIO_TS);
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000569 spi_register_board_info(htcherald_spi_board_info,
570 ARRAY_SIZE(htcherald_spi_board_info));
571
572 omap_register_i2c_bus(1, 100, NULL, 0);
573
Javier Martinez Canillasfcebddb2016-08-11 15:29:44 -0400574#if IS_ENABLED(CONFIG_MMC_OMAP)
Cory Maccarrone493c32a2010-08-18 04:35:46 +0000575 htc_mmc_data[0] = &htc_mmc1_data;
576 omap1_init_mmc(htc_mmc_data, 1);
577#endif
Tomi Valkeinenddba6c72011-09-20 15:23:13 +0300578
579 omapfb_set_lcd_config(&htcherald_lcd_config);
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800580}
581
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800582MACHINE_START(HERALD, "HTC Herald")
583 /* Maintainer: Cory Maccarrone <darkstar6262@gmail.com> */
584 /* Maintainer: wing-linux.sourceforge.net */
Nicolas Pitre246e3892011-07-05 22:38:15 -0400585 .atag_offset = 0x100,
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800586 .map_io = htcherald_map_io,
Tony Lindgren7b88e622011-10-05 15:14:02 -0700587 .init_early = omap1_init_early,
Tony Lindgren7b88e622011-10-05 15:14:02 -0700588 .init_irq = omap1_init_irq,
Tony Lindgrenb6943312015-05-20 09:01:21 -0700589 .handle_irq = omap1_handle_irq,
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800590 .init_machine = htcherald_init,
Shawn Guo82c3bd02012-04-26 13:49:29 +0800591 .init_late = omap1_init_late,
Stephen Warren6bb27d72012-11-08 12:40:59 -0700592 .init_time = omap1_timer_init,
Russell Kingbaa95882011-11-05 17:06:28 +0000593 .restart = omap1_restart,
Cory Maccarrone9c2816f2009-11-22 10:11:34 -0800594MACHINE_END