1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/arch/arm/mach-pxa/palmtc.c
4 *
5 * Support for the Palm Tungsten|C
6 *
7 * Author: Marek Vasut <marek.vasut@gmail.com>
8 *
9 * Based on work of:
10 * Petr Blaha <p3t3@centrum.cz>
11 * Chetan S. Kumar <shivakumar.chetan@gmail.com>
12 */
13
14 #include <linux/platform_device.h>
15 #include <linux/delay.h>
16 #include <linux/irq.h>
17 #include <linux/input.h>
18 #include <linux/pwm.h>
19 #include <linux/pwm_backlight.h>
20 #include <linux/gpio/machine.h>
21 #include <linux/input/matrix_keypad.h>
22 #include <linux/ucb1400.h>
23 #include <linux/power_supply.h>
24 #include <linux/gpio_keys.h>
25 #include <linux/mtd/physmap.h>
26 #include <linux/usb/gpio_vbus.h>
27
28 #include <asm/mach-types.h>
29 #include <asm/mach/arch.h>
30 #include <asm/mach/map.h>
31
32 #include "pxa25x.h"
33 #include <mach/audio.h>
34 #include <mach/palmtc.h>
35 #include <linux/platform_data/mmc-pxamci.h>
36 #include <linux/platform_data/video-pxafb.h>
37 #include <linux/platform_data/irda-pxaficp.h>
38 #include "udc.h"
39
40 #include "generic.h"
41 #include "devices.h"
42
43 /******************************************************************************
44 * Pin configuration
45 ******************************************************************************/
46 static unsigned long palmtc_pin_config[] __initdata = {
47 /* MMC */
48 GPIO6_MMC_CLK,
49 GPIO8_MMC_CS0,
50 GPIO12_GPIO, /* detect */
51 GPIO32_GPIO, /* power */
52 GPIO54_GPIO, /* r/o switch */
53
54 /* PCMCIA */
55 GPIO52_nPCE_1,
56 GPIO53_nPCE_2,
57 GPIO50_nPIOR,
58 GPIO51_nPIOW,
59 GPIO49_nPWE,
60 GPIO48_nPOE,
61 GPIO52_nPCE_1,
62 GPIO53_nPCE_2,
63 GPIO57_nIOIS16,
64 GPIO56_nPWAIT,
65
66 /* AC97 */
67 GPIO28_AC97_BITCLK,
68 GPIO29_AC97_SDATA_IN_0,
69 GPIO30_AC97_SDATA_OUT,
70 GPIO31_AC97_SYNC,
71
72 /* IrDA */
73 GPIO45_GPIO, /* ir disable */
74 GPIO46_FICP_RXD,
75 GPIO47_FICP_TXD,
76
77 /* PWM */
78 GPIO17_PWM1_OUT,
79
80 /* USB */
81 GPIO4_GPIO, /* detect */
82 GPIO36_GPIO, /* pullup */
83
84 /* LCD */
85 GPIOxx_LCD_TFT_16BPP,
86
87 /* MATRIX KEYPAD */
88 GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 0 */
89 GPIO9_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 1 */
90 GPIO10_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 2 */
91 GPIO11_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 3 */
92 GPIO18_GPIO | MFP_LPM_DRIVE_LOW, /* out 0 */
93 GPIO19_GPIO | MFP_LPM_DRIVE_LOW, /* out 1 */
94 GPIO20_GPIO | MFP_LPM_DRIVE_LOW, /* out 2 */
95 GPIO21_GPIO | MFP_LPM_DRIVE_LOW, /* out 3 */
96 GPIO22_GPIO | MFP_LPM_DRIVE_LOW, /* out 4 */
97 GPIO23_GPIO | MFP_LPM_DRIVE_LOW, /* out 5 */
98 GPIO24_GPIO | MFP_LPM_DRIVE_LOW, /* out 6 */
99 GPIO25_GPIO | MFP_LPM_DRIVE_LOW, /* out 7 */
100 GPIO26_GPIO | MFP_LPM_DRIVE_LOW, /* out 8 */
101 GPIO27_GPIO | MFP_LPM_DRIVE_LOW, /* out 9 */
102 GPIO79_GPIO | MFP_LPM_DRIVE_LOW, /* out 10 */
103 GPIO80_GPIO | MFP_LPM_DRIVE_LOW, /* out 11 */
104
105 /* PXA GPIO KEYS */
106 GPIO7_GPIO | WAKEUP_ON_EDGE_BOTH, /* hotsync button on cradle */
107
108 /* MISC */
109 GPIO1_RST, /* reset */
110 GPIO2_GPIO, /* earphone detect */
111 GPIO16_GPIO, /* backlight switch */
112 };
113
114 /******************************************************************************
115 * SD/MMC card controller
116 ******************************************************************************/
117 #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
118 static struct pxamci_platform_data palmtc_mci_platform_data = {
119 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
120 .detect_delay_ms = 200,
121 };
122
123 static struct gpiod_lookup_table palmtc_mci_gpio_table = {
124 .dev_id = "pxa2xx-mci.0",
125 .table = {
126 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_SD_DETECT_N,
127 "cd", GPIO_ACTIVE_LOW),
128 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_SD_READONLY,
129 "wp", GPIO_ACTIVE_LOW),
130 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_SD_POWER,
131 "power", GPIO_ACTIVE_HIGH),
132 { },
133 },
134 };
135
palmtc_mmc_init(void)136 static void __init palmtc_mmc_init(void)
137 {
138 gpiod_add_lookup_table(&palmtc_mci_gpio_table);
139 pxa_set_mci_info(&palmtc_mci_platform_data);
140 }
141 #else
palmtc_mmc_init(void)142 static inline void palmtc_mmc_init(void) {}
143 #endif
144
145 /******************************************************************************
146 * GPIO keys
147 ******************************************************************************/
148 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
149 static struct gpio_keys_button palmtc_pxa_buttons[] = {
150 {KEY_F8, GPIO_NR_PALMTC_HOTSYNC_BUTTON, 1, "HotSync Button", EV_KEY, 1},
151 };
152
153 static struct gpio_keys_platform_data palmtc_pxa_keys_data = {
154 .buttons = palmtc_pxa_buttons,
155 .nbuttons = ARRAY_SIZE(palmtc_pxa_buttons),
156 };
157
158 static struct platform_device palmtc_pxa_keys = {
159 .name = "gpio-keys",
160 .id = -1,
161 .dev = {
162 .platform_data = &palmtc_pxa_keys_data,
163 },
164 };
165
palmtc_keys_init(void)166 static void __init palmtc_keys_init(void)
167 {
168 platform_device_register(&palmtc_pxa_keys);
169 }
170 #else
palmtc_keys_init(void)171 static inline void palmtc_keys_init(void) {}
172 #endif
173
174 /******************************************************************************
175 * Backlight
176 ******************************************************************************/
177 #if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
178 static struct pwm_lookup palmtc_pwm_lookup[] = {
179 PWM_LOOKUP("pxa25x-pwm.1", 0, "pwm-backlight.0", NULL, PALMTC_PERIOD_NS,
180 PWM_POLARITY_NORMAL),
181 };
182
183 static struct platform_pwm_backlight_data palmtc_backlight_data = {
184 .max_brightness = PALMTC_MAX_INTENSITY,
185 .dft_brightness = PALMTC_MAX_INTENSITY,
186 .enable_gpio = GPIO_NR_PALMTC_BL_POWER,
187 };
188
189 static struct platform_device palmtc_backlight = {
190 .name = "pwm-backlight",
191 .dev = {
192 .parent = &pxa25x_device_pwm1.dev,
193 .platform_data = &palmtc_backlight_data,
194 },
195 };
196
palmtc_pwm_init(void)197 static void __init palmtc_pwm_init(void)
198 {
199 pwm_add_table(palmtc_pwm_lookup, ARRAY_SIZE(palmtc_pwm_lookup));
200 platform_device_register(&palmtc_backlight);
201 }
202 #else
palmtc_pwm_init(void)203 static inline void palmtc_pwm_init(void) {}
204 #endif
205
206 /******************************************************************************
207 * IrDA
208 ******************************************************************************/
209 #if defined(CONFIG_IRDA) || defined(CONFIG_IRDA_MODULE)
210 static struct pxaficp_platform_data palmtc_ficp_platform_data = {
211 .gpio_pwdown = GPIO_NR_PALMTC_IR_DISABLE,
212 .transceiver_cap = IR_SIRMODE | IR_OFF,
213 };
214
palmtc_irda_init(void)215 static void __init palmtc_irda_init(void)
216 {
217 pxa_set_ficp_info(&palmtc_ficp_platform_data);
218 }
219 #else
palmtc_irda_init(void)220 static inline void palmtc_irda_init(void) {}
221 #endif
222
223 /******************************************************************************
224 * Keyboard
225 ******************************************************************************/
226 #if defined(CONFIG_KEYBOARD_MATRIX) || defined(CONFIG_KEYBOARD_MATRIX_MODULE)
227 static const uint32_t palmtc_matrix_keys[] = {
228 KEY(0, 0, KEY_F1),
229 KEY(0, 1, KEY_X),
230 KEY(0, 2, KEY_POWER),
231 KEY(0, 3, KEY_TAB),
232 KEY(0, 4, KEY_A),
233 KEY(0, 5, KEY_Q),
234 KEY(0, 6, KEY_LEFTSHIFT),
235 KEY(0, 7, KEY_Z),
236 KEY(0, 8, KEY_S),
237 KEY(0, 9, KEY_W),
238 KEY(0, 10, KEY_E),
239 KEY(0, 11, KEY_UP),
240
241 KEY(1, 0, KEY_F2),
242 KEY(1, 1, KEY_DOWN),
243 KEY(1, 3, KEY_D),
244 KEY(1, 4, KEY_C),
245 KEY(1, 5, KEY_F),
246 KEY(1, 6, KEY_R),
247 KEY(1, 7, KEY_SPACE),
248 KEY(1, 8, KEY_V),
249 KEY(1, 9, KEY_G),
250 KEY(1, 10, KEY_T),
251 KEY(1, 11, KEY_LEFT),
252
253 KEY(2, 0, KEY_F3),
254 KEY(2, 1, KEY_LEFTCTRL),
255 KEY(2, 3, KEY_H),
256 KEY(2, 4, KEY_Y),
257 KEY(2, 5, KEY_N),
258 KEY(2, 6, KEY_J),
259 KEY(2, 7, KEY_U),
260 KEY(2, 8, KEY_M),
261 KEY(2, 9, KEY_K),
262 KEY(2, 10, KEY_I),
263 KEY(2, 11, KEY_RIGHT),
264
265 KEY(3, 0, KEY_F4),
266 KEY(3, 1, KEY_ENTER),
267 KEY(3, 3, KEY_DOT),
268 KEY(3, 4, KEY_L),
269 KEY(3, 5, KEY_O),
270 KEY(3, 6, KEY_LEFTALT),
271 KEY(3, 7, KEY_ENTER),
272 KEY(3, 8, KEY_BACKSPACE),
273 KEY(3, 9, KEY_P),
274 KEY(3, 10, KEY_B),
275 KEY(3, 11, KEY_FN),
276 };
277
278 const struct matrix_keymap_data palmtc_keymap_data = {
279 .keymap = palmtc_matrix_keys,
280 .keymap_size = ARRAY_SIZE(palmtc_matrix_keys),
281 };
282
283 static const unsigned int palmtc_keypad_row_gpios[] = {
284 0, 9, 10, 11
285 };
286
287 static const unsigned int palmtc_keypad_col_gpios[] = {
288 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 79, 80
289 };
290
291 static struct matrix_keypad_platform_data palmtc_keypad_platform_data = {
292 .keymap_data = &palmtc_keymap_data,
293 .row_gpios = palmtc_keypad_row_gpios,
294 .num_row_gpios = ARRAY_SIZE(palmtc_keypad_row_gpios),
295 .col_gpios = palmtc_keypad_col_gpios,
296 .num_col_gpios = ARRAY_SIZE(palmtc_keypad_col_gpios),
297 .active_low = 1,
298
299 .debounce_ms = 20,
300 .col_scan_delay_us = 5,
301 };
302
303 static struct platform_device palmtc_keyboard = {
304 .name = "matrix-keypad",
305 .id = -1,
306 .dev = {
307 .platform_data = &palmtc_keypad_platform_data,
308 },
309 };
palmtc_mkp_init(void)310 static void __init palmtc_mkp_init(void)
311 {
312 platform_device_register(&palmtc_keyboard);
313 }
314 #else
palmtc_mkp_init(void)315 static inline void palmtc_mkp_init(void) {}
316 #endif
317
318 /******************************************************************************
319 * UDC
320 ******************************************************************************/
321 #if defined(CONFIG_USB_PXA25X)||defined(CONFIG_USB_PXA25X_MODULE)
322 static struct gpio_vbus_mach_info palmtc_udc_info = {
323 .gpio_vbus = GPIO_NR_PALMTC_USB_DETECT_N,
324 .gpio_vbus_inverted = 1,
325 .gpio_pullup = GPIO_NR_PALMTC_USB_POWER,
326 };
327
328 static struct platform_device palmtc_gpio_vbus = {
329 .name = "gpio-vbus",
330 .id = -1,
331 .dev = {
332 .platform_data = &palmtc_udc_info,
333 },
334 };
335
palmtc_udc_init(void)336 static void __init palmtc_udc_init(void)
337 {
338 platform_device_register(&palmtc_gpio_vbus);
339 };
340 #else
palmtc_udc_init(void)341 static inline void palmtc_udc_init(void) {}
342 #endif
343
344 /******************************************************************************
345 * Touchscreen / Battery / GPIO-extender
346 ******************************************************************************/
347 #if defined(CONFIG_TOUCHSCREEN_UCB1400) || \
348 defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
349 static struct platform_device palmtc_ucb1400_device = {
350 .name = "ucb1400_core",
351 .id = -1,
352 };
353
palmtc_ts_init(void)354 static void __init palmtc_ts_init(void)
355 {
356 pxa_set_ac97_info(NULL);
357 platform_device_register(&palmtc_ucb1400_device);
358 }
359 #else
palmtc_ts_init(void)360 static inline void palmtc_ts_init(void) {}
361 #endif
362
363 /******************************************************************************
364 * LEDs
365 ******************************************************************************/
366 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
367 struct gpio_led palmtc_gpio_leds[] = {
368 {
369 .name = "palmtc:green:user",
370 .default_trigger = "none",
371 .gpio = GPIO_NR_PALMTC_LED_POWER,
372 .active_low = 1,
373 }, {
374 .name = "palmtc:vibra:vibra",
375 .default_trigger = "none",
376 .gpio = GPIO_NR_PALMTC_VIBRA_POWER,
377 .active_low = 1,
378 }
379
380 };
381
382 static struct gpio_led_platform_data palmtc_gpio_led_info = {
383 .leds = palmtc_gpio_leds,
384 .num_leds = ARRAY_SIZE(palmtc_gpio_leds),
385 };
386
387 static struct platform_device palmtc_leds = {
388 .name = "leds-gpio",
389 .id = -1,
390 .dev = {
391 .platform_data = &palmtc_gpio_led_info,
392 }
393 };
394
palmtc_leds_init(void)395 static void __init palmtc_leds_init(void)
396 {
397 platform_device_register(&palmtc_leds);
398 }
399 #else
palmtc_leds_init(void)400 static inline void palmtc_leds_init(void) {}
401 #endif
402
403 /******************************************************************************
404 * NOR Flash
405 ******************************************************************************/
406 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
407 static struct resource palmtc_flash_resource = {
408 .start = PXA_CS0_PHYS,
409 .end = PXA_CS0_PHYS + SZ_16M - 1,
410 .flags = IORESOURCE_MEM,
411 };
412
413 static struct mtd_partition palmtc_flash_parts[] = {
414 {
415 .name = "U-Boot Bootloader",
416 .offset = 0x0,
417 .size = 0x40000,
418 },
419 {
420 .name = "Linux Kernel",
421 .offset = 0x40000,
422 .size = 0x2c0000,
423 },
424 {
425 .name = "Filesystem",
426 .offset = 0x300000,
427 .size = 0xcc0000,
428 },
429 {
430 .name = "U-Boot Environment",
431 .offset = 0xfc0000,
432 .size = MTDPART_SIZ_FULL,
433 },
434 };
435
436 static struct physmap_flash_data palmtc_flash_data = {
437 .width = 4,
438 .parts = palmtc_flash_parts,
439 .nr_parts = ARRAY_SIZE(palmtc_flash_parts),
440 };
441
442 static struct platform_device palmtc_flash = {
443 .name = "physmap-flash",
444 .id = -1,
445 .resource = &palmtc_flash_resource,
446 .num_resources = 1,
447 .dev = {
448 .platform_data = &palmtc_flash_data,
449 },
450 };
451
palmtc_nor_init(void)452 static void __init palmtc_nor_init(void)
453 {
454 platform_device_register(&palmtc_flash);
455 }
456 #else
palmtc_nor_init(void)457 static inline void palmtc_nor_init(void) {}
458 #endif
459
460 /******************************************************************************
461 * Framebuffer
462 ******************************************************************************/
463 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
464 static struct pxafb_mode_info palmtc_lcd_modes[] = {
465 {
466 .pixclock = 115384,
467 .xres = 320,
468 .yres = 320,
469 .bpp = 16,
470
471 .left_margin = 27,
472 .right_margin = 7,
473 .upper_margin = 7,
474 .lower_margin = 8,
475
476 .hsync_len = 6,
477 .vsync_len = 1,
478 },
479 };
480
481 static struct pxafb_mach_info palmtc_lcd_screen = {
482 .modes = palmtc_lcd_modes,
483 .num_modes = ARRAY_SIZE(palmtc_lcd_modes),
484 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
485 };
486
palmtc_lcd_init(void)487 static void __init palmtc_lcd_init(void)
488 {
489 pxa_set_fb_info(NULL, &palmtc_lcd_screen);
490 }
491 #else
palmtc_lcd_init(void)492 static inline void palmtc_lcd_init(void) {}
493 #endif
494
495 /******************************************************************************
496 * Machine init
497 ******************************************************************************/
palmtc_init(void)498 static void __init palmtc_init(void)
499 {
500 pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtc_pin_config));
501
502 pxa_set_ffuart_info(NULL);
503 pxa_set_btuart_info(NULL);
504 pxa_set_stuart_info(NULL);
505 pxa_set_hwuart_info(NULL);
506
507 palmtc_mmc_init();
508 palmtc_keys_init();
509 palmtc_pwm_init();
510 palmtc_irda_init();
511 palmtc_mkp_init();
512 palmtc_udc_init();
513 palmtc_ts_init();
514 palmtc_nor_init();
515 palmtc_lcd_init();
516 palmtc_leds_init();
517 };
518
519 MACHINE_START(PALMTC, "Palm Tungsten|C")
520 .atag_offset = 0x100,
521 .map_io = pxa25x_map_io,
522 .nr_irqs = PXA_NR_IRQS,
523 .init_irq = pxa25x_init_irq,
524 .handle_irq = pxa25x_handle_irq,
525 .init_time = pxa_timer_init,
526 .init_machine = palmtc_init,
527 .restart = pxa_restart,
528 MACHINE_END
529