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11#include <linux/kernel.h>
12#include <linux/init.h>
13#include <linux/platform_device.h>
14#include <linux/input.h>
15#include <linux/delay.h>
16#include <linux/gpio.h>
17#include <linux/gpio_keys.h>
18#include <linux/i2c.h>
19#include <linux/platform_data/i2c-gpio.h>
20#include <linux/htcpld.h>
21#include <linux/leds.h>
22#include <linux/spi/spi.h>
23#include <linux/spi/ads7846.h>
24#include <linux/omapfb.h>
25#include <linux/platform_data/keypad-omap.h>
26
27#include <asm/mach-types.h>
28#include <asm/mach/arch.h>
29
30#include <mach/omap7xx.h>
31#include "mmc.h"
32
33#include <mach/irqs.h>
34#include <mach/usb.h>
35
36#include "common.h"
37
38
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
46
47#define HTCHERALD_GPIO_POWER 139
48#define HTCHERALD_GPIO_SLIDE 174
49#define HTCHERALD_GIRQ_BTNS 141
50
51
52#define HTCHERALD_GPIO_TS 76
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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
146
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
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
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)
163
164
165
166static const unsigned int htc_herald_keymap[] = {
167 KEY(0, 0, KEY_RECORD),
168 KEY(1, 0, KEY_CAMERA),
169 KEY(2, 0, KEY_PHONE),
170 KEY(3, 0, KEY_VOLUMEUP),
171 KEY(4, 0, KEY_F2),
172 KEY(5, 0, KEY_MAIL),
173 KEY(6, 0, KEY_DIRECTORY),
174 KEY(0, 1, KEY_LEFTCTRL),
175 KEY(1, 1, KEY_COMMA),
176 KEY(2, 1, KEY_M),
177 KEY(3, 1, KEY_K),
178 KEY(4, 1, KEY_SLASH),
179 KEY(5, 1, KEY_I),
180 KEY(6, 1, KEY_U),
181 KEY(0, 2, KEY_LEFTALT),
182 KEY(1, 2, KEY_TAB),
183 KEY(2, 2, KEY_N),
184 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),
191 KEY(3, 3, KEY_V),
192 KEY(4, 3, KEY_BACKSPACE),
193 KEY(5, 3, KEY_G),
194 KEY(6, 3, KEY_T),
195 KEY(0, 4, KEY_CAPSLOCK),
196 KEY(1, 4, KEY_C),
197 KEY(2, 4, KEY_F),
198 KEY(3, 4, KEY_R),
199 KEY(4, 4, KEY_O),
200 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),
207 KEY(5, 5, KEY_Q),
208 KEY(6, 5, KEY_A),
209 KEY(0, 6, KEY_CONNECT),
210 KEY(2, 6, KEY_CANCEL),
211 KEY(3, 6, KEY_VOLUMEDOWN),
212 KEY(4, 6, KEY_F1),
213 KEY(5, 6, KEY_WWW),
214 KEY(6, 6, KEY_CALENDAR),
215};
216
217static 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 = {
223 .rows = 7,
224 .cols = 7,
225 .delay = 20,
226 .rep = true,
227 .keymap_data = &htc_herald_keymap_data,
228};
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
248
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),
268 .rep = true,
269};
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
280static const struct gpio_led gpio_leds[] = {
281 {"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
308
309static struct resource htcpld_resources[] = {
310 [0] = {
311 .flags = IORESOURCE_IRQ,
312 },
313};
314
315static struct htcpld_chip_platform_data htcpld_chips[] = {
316 [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
350static struct htcpld_core_platform_data htcpld_pfdata = {
351 .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
369
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
378
379static const struct omap_lcd_config htcherald_lcd_config __initconst = {
380 .ctrl_name = "internal",
381};
382
383static struct platform_device lcd_device = {
384 .name = "lcd_htcherald",
385 .id = -1,
386};
387
388
389#if IS_ENABLED(CONFIG_MMC_OMAP)
390static struct omap_mmc_platform_data htc_mmc1_data = {
391 .nr_slots = 1,
392 .switch_slot = NULL,
393 .slots[0] = {
394 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
395 .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
407static struct platform_device *devices[] __initdata = {
408 &kp_device,
409 &lcd_device,
410 &htcpld_device,
411 &gpio_leds_device,
412 &herald_gpiokeys_device,
413};
414
415
416
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,
423 .pressure_max = 10000,
424 .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,
435 .max_speed_hz = 2500000,
436 .bus_num = 2,
437 .chip_select = 1,
438 }
439};
440
441
442
443
444
445static void __init htcherald_lcd_init(void)
446{
447 u32 reg;
448 unsigned int tries = 200;
449
450
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
457 while (!(omap_readl(OMAP_LCDC_STATUS) & OMAP_LCDC_STAT_DONE)) {
458 tries--;
459 if (!tries)
460 break;
461 }
462 if (!tries)
463 pr_err("Timeout waiting for end of frame -- LCD may not be available\n");
464
465
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{
478 omap7xx_map_io();
479
480
481
482
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
492 if (omap_readl(OMAP_WDT_TIMER_MODE) & 0x8000) {
493
494
495
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
503#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
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
527 do {
528
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);
537 gpio_direction_input(HTCHERALD_GPIO_USB_DM);
538 gpio_direction_input(HTCHERALD_GPIO_USB_DP);
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
554static void __init htcherald_init(void)
555{
556 printk(KERN_INFO "HTC Herald init.\n");
557
558
559 htcpld_resources[0].start = gpio_to_irq(HTCHERALD_GIRQ_BTNS);
560 htcpld_resources[0].end = gpio_to_irq(HTCHERALD_GIRQ_BTNS);
561 platform_add_devices(devices, ARRAY_SIZE(devices));
562
563 htcherald_disable_watchdog();
564
565 htcherald_usb_enable();
566 omap1_usb_init(&htcherald_usb_config);
567
568 htcherald_spi_board_info[0].irq = gpio_to_irq(HTCHERALD_GPIO_TS);
569 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
574#if IS_ENABLED(CONFIG_MMC_OMAP)
575 htc_mmc_data[0] = &htc_mmc1_data;
576 omap1_init_mmc(htc_mmc_data, 1);
577#endif
578
579 omapfb_set_lcd_config(&htcherald_lcd_config);
580}
581
582MACHINE_START(HERALD, "HTC Herald")
583
584
585 .atag_offset = 0x100,
586 .map_io = htcherald_map_io,
587 .init_early = omap1_init_early,
588 .init_irq = omap1_init_irq,
589 .handle_irq = omap1_handle_irq,
590 .init_machine = htcherald_init,
591 .init_late = omap1_init_late,
592 .init_time = omap1_timer_init,
593 .restart = omap1_restart,
594MACHINE_END
595
