1 /*
2 * linux/arch/arm/mach-pxa/palmtc.c
3 *
4 * Support for the Palm Tungsten|C
5 *
6 * Author: Marek Vasut <marek.vasut@gmail.com>
7 *
8 * Based on work of:
9 * Petr Blaha <p3t3@centrum.cz>
10 * Chetan S. Kumar <shivakumar.chetan@gmail.com>
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License version 2 as
14 * published by the Free Software Foundation.
15 */
16
17 #include <linux/platform_device.h>
18 #include <linux/delay.h>
19 #include <linux/irq.h>
20 #include <linux/input.h>
21 #include <linux/pwm_backlight.h>
22 #include <linux/gpio.h>
23 #include <linux/input/matrix_keypad.h>
24 #include <linux/ucb1400.h>
25 #include <linux/power_supply.h>
26 #include <linux/gpio_keys.h>
27 #include <linux/mtd/physmap.h>
28 #include <linux/usb/gpio_vbus.h>
29
30 #include <asm/mach-types.h>
31 #include <asm/mach/arch.h>
32 #include <asm/mach/map.h>
33
34 #include <mach/pxa25x.h>
35 #include <mach/audio.h>
36 #include <mach/palmtc.h>
37 #include <mach/mmc.h>
38 #include <mach/pxafb.h>
39 #include <mach/irda.h>
40 #include <mach/udc.h>
41
42 #include "generic.h"
43 #include "devices.h"
44
45 /******************************************************************************
46 * Pin configuration
47 ******************************************************************************/
48 static unsigned long palmtc_pin_config[] __initdata = {
49 /* MMC */
50 GPIO6_MMC_CLK,
51 GPIO8_MMC_CS0,
52 GPIO12_GPIO, /* detect */
53 GPIO32_GPIO, /* power */
54 GPIO54_GPIO, /* r/o switch */
55
56 /* PCMCIA */
57 GPIO52_nPCE_1,
58 GPIO53_nPCE_2,
59 GPIO50_nPIOR,
60 GPIO51_nPIOW,
61 GPIO49_nPWE,
62 GPIO48_nPOE,
63 GPIO52_nPCE_1,
64 GPIO53_nPCE_2,
65 GPIO57_nIOIS16,
66 GPIO56_nPWAIT,
67
68 /* AC97 */
69 GPIO28_AC97_BITCLK,
70 GPIO29_AC97_SDATA_IN_0,
71 GPIO30_AC97_SDATA_OUT,
72 GPIO31_AC97_SYNC,
73
74 /* IrDA */
75 GPIO45_GPIO, /* ir disable */
76 GPIO46_FICP_RXD,
77 GPIO47_FICP_TXD,
78
79 /* PWM */
80 GPIO17_PWM1_OUT,
81
82 /* USB */
83 GPIO4_GPIO, /* detect */
84 GPIO36_GPIO, /* pullup */
85
86 /* LCD */
87 GPIOxx_LCD_TFT_16BPP,
88
89 /* MATRIX KEYPAD */
90 GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 0 */
91 GPIO9_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 1 */
92 GPIO10_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 2 */
93 GPIO11_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 3 */
94 GPIO18_GPIO | MFP_LPM_DRIVE_LOW, /* out 0 */
95 GPIO19_GPIO | MFP_LPM_DRIVE_LOW, /* out 1 */
96 GPIO20_GPIO | MFP_LPM_DRIVE_LOW, /* out 2 */
97 GPIO21_GPIO | MFP_LPM_DRIVE_LOW, /* out 3 */
98 GPIO22_GPIO | MFP_LPM_DRIVE_LOW, /* out 4 */
99 GPIO23_GPIO | MFP_LPM_DRIVE_LOW, /* out 5 */
100 GPIO24_GPIO | MFP_LPM_DRIVE_LOW, /* out 6 */
101 GPIO25_GPIO | MFP_LPM_DRIVE_LOW, /* out 7 */
102 GPIO26_GPIO | MFP_LPM_DRIVE_LOW, /* out 8 */
103 GPIO27_GPIO | MFP_LPM_DRIVE_LOW, /* out 9 */
104 GPIO79_GPIO | MFP_LPM_DRIVE_LOW, /* out 10 */
105 GPIO80_GPIO | MFP_LPM_DRIVE_LOW, /* out 11 */
106
107 /* PXA GPIO KEYS */
108 GPIO7_GPIO | WAKEUP_ON_EDGE_BOTH, /* hotsync button on cradle */
109
110 /* MISC */
111 GPIO1_RST, /* reset */
112 GPIO2_GPIO, /* earphone detect */
113 GPIO16_GPIO, /* backlight switch */
114 };
115
116 /******************************************************************************
117 * SD/MMC card controller
118 ******************************************************************************/
119 #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
120 static struct pxamci_platform_data palmtc_mci_platform_data = {
121 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
122 .gpio_power = GPIO_NR_PALMTC_SD_POWER,
123 .gpio_card_ro = GPIO_NR_PALMTC_SD_READONLY,
124 .gpio_card_detect = GPIO_NR_PALMTC_SD_DETECT_N,
125 .detect_delay_ms = 200,
126 };
127
palmtc_mmc_init(void)128 static void __init palmtc_mmc_init(void)
129 {
130 pxa_set_mci_info(&palmtc_mci_platform_data);
131 }
132 #else
palmtc_mmc_init(void)133 static inline void palmtc_mmc_init(void) {}
134 #endif
135
136 /******************************************************************************
137 * GPIO keys
138 ******************************************************************************/
139 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
140 static struct gpio_keys_button palmtc_pxa_buttons[] = {
141 {KEY_F8, GPIO_NR_PALMTC_HOTSYNC_BUTTON, 1, "HotSync Button", EV_KEY, 1},
142 };
143
144 static struct gpio_keys_platform_data palmtc_pxa_keys_data = {
145 .buttons = palmtc_pxa_buttons,
146 .nbuttons = ARRAY_SIZE(palmtc_pxa_buttons),
147 };
148
149 static struct platform_device palmtc_pxa_keys = {
150 .name = "gpio-keys",
151 .id = -1,
152 .dev = {
153 .platform_data = &palmtc_pxa_keys_data,
154 },
155 };
156
palmtc_keys_init(void)157 static void __init palmtc_keys_init(void)
158 {
159 platform_device_register(&palmtc_pxa_keys);
160 }
161 #else
palmtc_keys_init(void)162 static inline void palmtc_keys_init(void) {}
163 #endif
164
165 /******************************************************************************
166 * Backlight
167 ******************************************************************************/
168 #if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
palmtc_backlight_init(struct device * dev)169 static int palmtc_backlight_init(struct device *dev)
170 {
171 int ret;
172
173 ret = gpio_request(GPIO_NR_PALMTC_BL_POWER, "BL POWER");
174 if (ret)
175 goto err;
176 ret = gpio_direction_output(GPIO_NR_PALMTC_BL_POWER, 1);
177 if (ret)
178 goto err2;
179
180 return 0;
181
182 err2:
183 gpio_free(GPIO_NR_PALMTC_BL_POWER);
184 err:
185 return ret;
186 }
187
palmtc_backlight_notify(struct device * dev,int brightness)188 static int palmtc_backlight_notify(struct device *dev, int brightness)
189 {
190 /* backlight is on when GPIO16 AF0 is high */
191 gpio_set_value(GPIO_NR_PALMTC_BL_POWER, brightness);
192 return brightness;
193 }
194
palmtc_backlight_exit(struct device * dev)195 static void palmtc_backlight_exit(struct device *dev)
196 {
197 gpio_free(GPIO_NR_PALMTC_BL_POWER);
198 }
199
200 static struct platform_pwm_backlight_data palmtc_backlight_data = {
201 .pwm_id = 1,
202 .max_brightness = PALMTC_MAX_INTENSITY,
203 .dft_brightness = PALMTC_MAX_INTENSITY,
204 .pwm_period_ns = PALMTC_PERIOD_NS,
205 .init = palmtc_backlight_init,
206 .notify = palmtc_backlight_notify,
207 .exit = palmtc_backlight_exit,
208 };
209
210 static struct platform_device palmtc_backlight = {
211 .name = "pwm-backlight",
212 .dev = {
213 .parent = &pxa25x_device_pwm1.dev,
214 .platform_data = &palmtc_backlight_data,
215 },
216 };
217
palmtc_pwm_init(void)218 static void __init palmtc_pwm_init(void)
219 {
220 platform_device_register(&palmtc_backlight);
221 }
222 #else
palmtc_pwm_init(void)223 static inline void palmtc_pwm_init(void) {}
224 #endif
225
226 /******************************************************************************
227 * IrDA
228 ******************************************************************************/
229 #if defined(CONFIG_IRDA) || defined(CONFIG_IRDA_MODULE)
230 static struct pxaficp_platform_data palmtc_ficp_platform_data = {
231 .gpio_pwdown = GPIO_NR_PALMTC_IR_DISABLE,
232 .transceiver_cap = IR_SIRMODE | IR_OFF,
233 };
234
palmtc_irda_init(void)235 static void __init palmtc_irda_init(void)
236 {
237 pxa_set_ficp_info(&palmtc_ficp_platform_data);
238 }
239 #else
palmtc_irda_init(void)240 static inline void palmtc_irda_init(void) {}
241 #endif
242
243 /******************************************************************************
244 * Keyboard
245 ******************************************************************************/
246 #if defined(CONFIG_KEYBOARD_MATRIX) || defined(CONFIG_KEYBOARD_MATRIX_MODULE)
247 static const uint32_t palmtc_matrix_keys[] = {
248 KEY(0, 0, KEY_F1),
249 KEY(0, 1, KEY_X),
250 KEY(0, 2, KEY_POWER),
251 KEY(0, 3, KEY_TAB),
252 KEY(0, 4, KEY_A),
253 KEY(0, 5, KEY_Q),
254 KEY(0, 6, KEY_LEFTSHIFT),
255 KEY(0, 7, KEY_Z),
256 KEY(0, 8, KEY_S),
257 KEY(0, 9, KEY_W),
258 KEY(0, 10, KEY_E),
259 KEY(0, 11, KEY_UP),
260
261 KEY(1, 0, KEY_F2),
262 KEY(1, 1, KEY_DOWN),
263 KEY(1, 3, KEY_D),
264 KEY(1, 4, KEY_C),
265 KEY(1, 5, KEY_F),
266 KEY(1, 6, KEY_R),
267 KEY(1, 7, KEY_SPACE),
268 KEY(1, 8, KEY_V),
269 KEY(1, 9, KEY_G),
270 KEY(1, 10, KEY_T),
271 KEY(1, 11, KEY_LEFT),
272
273 KEY(2, 0, KEY_F3),
274 KEY(2, 1, KEY_LEFTCTRL),
275 KEY(2, 3, KEY_H),
276 KEY(2, 4, KEY_Y),
277 KEY(2, 5, KEY_N),
278 KEY(2, 6, KEY_J),
279 KEY(2, 7, KEY_U),
280 KEY(2, 8, KEY_M),
281 KEY(2, 9, KEY_K),
282 KEY(2, 10, KEY_I),
283 KEY(2, 11, KEY_RIGHT),
284
285 KEY(3, 0, KEY_F4),
286 KEY(3, 1, KEY_ENTER),
287 KEY(3, 3, KEY_DOT),
288 KEY(3, 4, KEY_L),
289 KEY(3, 5, KEY_O),
290 KEY(3, 6, KEY_LEFTALT),
291 KEY(3, 7, KEY_ENTER),
292 KEY(3, 8, KEY_BACKSPACE),
293 KEY(3, 9, KEY_P),
294 KEY(3, 10, KEY_B),
295 KEY(3, 11, KEY_FN),
296 };
297
298 const struct matrix_keymap_data palmtc_keymap_data = {
299 .keymap = palmtc_matrix_keys,
300 .keymap_size = ARRAY_SIZE(palmtc_matrix_keys),
301 };
302
303 static const unsigned int palmtc_keypad_row_gpios[] = {
304 0, 9, 10, 11
305 };
306
307 static const unsigned int palmtc_keypad_col_gpios[] = {
308 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 79, 80
309 };
310
311 static struct matrix_keypad_platform_data palmtc_keypad_platform_data = {
312 .keymap_data = &palmtc_keymap_data,
313 .row_gpios = palmtc_keypad_row_gpios,
314 .num_row_gpios = ARRAY_SIZE(palmtc_keypad_row_gpios),
315 .col_gpios = palmtc_keypad_col_gpios,
316 .num_col_gpios = ARRAY_SIZE(palmtc_keypad_col_gpios),
317 .active_low = 1,
318
319 .debounce_ms = 20,
320 .col_scan_delay_us = 5,
321 };
322
323 static struct platform_device palmtc_keyboard = {
324 .name = "matrix-keypad",
325 .id = -1,
326 .dev = {
327 .platform_data = &palmtc_keypad_platform_data,
328 },
329 };
palmtc_mkp_init(void)330 static void __init palmtc_mkp_init(void)
331 {
332 platform_device_register(&palmtc_keyboard);
333 }
334 #else
palmtc_mkp_init(void)335 static inline void palmtc_mkp_init(void) {}
336 #endif
337
338 /******************************************************************************
339 * UDC
340 ******************************************************************************/
341 #if defined(CONFIG_USB_PXA25X)||defined(CONFIG_USB_PXA25X_MODULE)
342 static struct gpio_vbus_mach_info palmtc_udc_info = {
343 .gpio_vbus = GPIO_NR_PALMTC_USB_DETECT_N,
344 .gpio_vbus_inverted = 1,
345 .gpio_pullup = GPIO_NR_PALMTC_USB_POWER,
346 };
347
348 static struct platform_device palmtc_gpio_vbus = {
349 .name = "gpio-vbus",
350 .id = -1,
351 .dev = {
352 .platform_data = &palmtc_udc_info,
353 },
354 };
355
palmtc_udc_init(void)356 static void __init palmtc_udc_init(void)
357 {
358 platform_device_register(&palmtc_gpio_vbus);
359 };
360 #else
palmtc_udc_init(void)361 static inline void palmtc_udc_init(void) {}
362 #endif
363
364 /******************************************************************************
365 * Touchscreen / Battery / GPIO-extender
366 ******************************************************************************/
367 #if defined(CONFIG_TOUCHSCREEN_UCB1400) || \
368 defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
369 static struct platform_device palmtc_ucb1400_device = {
370 .name = "ucb1400_core",
371 .id = -1,
372 };
373
palmtc_ts_init(void)374 static void __init palmtc_ts_init(void)
375 {
376 pxa_set_ac97_info(NULL);
377 platform_device_register(&palmtc_ucb1400_device);
378 }
379 #else
palmtc_ts_init(void)380 static inline void palmtc_ts_init(void) {}
381 #endif
382
383 /******************************************************************************
384 * LEDs
385 ******************************************************************************/
386 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
387 struct gpio_led palmtc_gpio_leds[] = {
388 {
389 .name = "palmtc:green:user",
390 .default_trigger = "none",
391 .gpio = GPIO_NR_PALMTC_LED_POWER,
392 .active_low = 1,
393 }, {
394 .name = "palmtc:vibra:vibra",
395 .default_trigger = "none",
396 .gpio = GPIO_NR_PALMTC_VIBRA_POWER,
397 .active_low = 1,
398 }
399
400 };
401
402 static struct gpio_led_platform_data palmtc_gpio_led_info = {
403 .leds = palmtc_gpio_leds,
404 .num_leds = ARRAY_SIZE(palmtc_gpio_leds),
405 };
406
407 static struct platform_device palmtc_leds = {
408 .name = "leds-gpio",
409 .id = -1,
410 .dev = {
411 .platform_data = &palmtc_gpio_led_info,
412 }
413 };
414
palmtc_leds_init(void)415 static void __init palmtc_leds_init(void)
416 {
417 platform_device_register(&palmtc_leds);
418 }
419 #else
palmtc_leds_init(void)420 static inline void palmtc_leds_init(void) {}
421 #endif
422
423 /******************************************************************************
424 * NOR Flash
425 ******************************************************************************/
426 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
427 static struct resource palmtc_flash_resource = {
428 .start = PXA_CS0_PHYS,
429 .end = PXA_CS0_PHYS + SZ_16M - 1,
430 .flags = IORESOURCE_MEM,
431 };
432
433 static struct mtd_partition palmtc_flash_parts[] = {
434 {
435 .name = "U-Boot Bootloader",
436 .offset = 0x0,
437 .size = 0x40000,
438 },
439 {
440 .name = "Linux Kernel",
441 .offset = 0x40000,
442 .size = 0x2c0000,
443 },
444 {
445 .name = "Filesystem",
446 .offset = 0x300000,
447 .size = 0xcc0000,
448 },
449 {
450 .name = "U-Boot Environment",
451 .offset = 0xfc0000,
452 .size = MTDPART_SIZ_FULL,
453 },
454 };
455
456 static struct physmap_flash_data palmtc_flash_data = {
457 .width = 4,
458 .parts = palmtc_flash_parts,
459 .nr_parts = ARRAY_SIZE(palmtc_flash_parts),
460 };
461
462 static struct platform_device palmtc_flash = {
463 .name = "physmap-flash",
464 .id = -1,
465 .resource = &palmtc_flash_resource,
466 .num_resources = 1,
467 .dev = {
468 .platform_data = &palmtc_flash_data,
469 },
470 };
471
palmtc_nor_init(void)472 static void __init palmtc_nor_init(void)
473 {
474 platform_device_register(&palmtc_flash);
475 }
476 #else
palmtc_nor_init(void)477 static inline void palmtc_nor_init(void) {}
478 #endif
479
480 /******************************************************************************
481 * Framebuffer
482 ******************************************************************************/
483 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
484 static struct pxafb_mode_info palmtc_lcd_modes[] = {
485 {
486 .pixclock = 115384,
487 .xres = 320,
488 .yres = 320,
489 .bpp = 16,
490
491 .left_margin = 27,
492 .right_margin = 7,
493 .upper_margin = 7,
494 .lower_margin = 8,
495
496 .hsync_len = 6,
497 .vsync_len = 1,
498 },
499 };
500
501 static struct pxafb_mach_info palmtc_lcd_screen = {
502 .modes = palmtc_lcd_modes,
503 .num_modes = ARRAY_SIZE(palmtc_lcd_modes),
504 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
505 };
506
palmtc_lcd_init(void)507 static void __init palmtc_lcd_init(void)
508 {
509 pxa_set_fb_info(NULL, &palmtc_lcd_screen);
510 }
511 #else
palmtc_lcd_init(void)512 static inline void palmtc_lcd_init(void) {}
513 #endif
514
515 /******************************************************************************
516 * Machine init
517 ******************************************************************************/
palmtc_init(void)518 static void __init palmtc_init(void)
519 {
520 pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtc_pin_config));
521
522 pxa_set_ffuart_info(NULL);
523 pxa_set_btuart_info(NULL);
524 pxa_set_stuart_info(NULL);
525 pxa_set_hwuart_info(NULL);
526
527 palmtc_mmc_init();
528 palmtc_keys_init();
529 palmtc_pwm_init();
530 palmtc_irda_init();
531 palmtc_mkp_init();
532 palmtc_udc_init();
533 palmtc_ts_init();
534 palmtc_nor_init();
535 palmtc_lcd_init();
536 palmtc_leds_init();
537 };
538
539 MACHINE_START(PALMTC, "Palm Tungsten|C")
540 .atag_offset = 0x100,
541 .map_io = pxa25x_map_io,
542 .init_irq = pxa25x_init_irq,
543 .handle_irq = pxa25x_handle_irq,
544 .timer = &pxa_timer,
545 .init_machine = palmtc_init,
546 .restart = pxa_restart,
547 MACHINE_END
548