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Linux 5.7.7
[linux/fpc-iii.git] / arch / arm / mach-omap1 / board-ams-delta.c
blob8d32894ecd2e393315b0864b7eaa70486288c175
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/arch/arm/mach-omap1/board-ams-delta.c
4 *
5 * Modified from board-generic.c
6 *
7 * Board specific inits for the Amstrad E3 (codename Delta) videophone
8 *
9 * Copyright (C) 2006 Jonathan McDowell <noodles@earth.li>
10 */
11 #include <linux/gpio/driver.h>
12 #include <linux/gpio/machine.h>
13 #include <linux/gpio/consumer.h>
14 #include <linux/gpio.h>
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/input.h>
18 #include <linux/interrupt.h>
19 #include <linux/leds.h>
20 #include <linux/mtd/nand-gpio.h>
21 #include <linux/mtd/partitions.h>
22 #include <linux/platform_device.h>
23 #include <linux/regulator/consumer.h>
24 #include <linux/regulator/fixed.h>
25 #include <linux/regulator/machine.h>
26 #include <linux/serial_8250.h>
27 #include <linux/export.h>
28 #include <linux/omapfb.h>
29 #include <linux/io.h>
30 #include <linux/platform_data/gpio-omap.h>
31
32 #include <media/soc_camera.h>
33
34 #include <asm/serial.h>
35 #include <asm/mach-types.h>
36 #include <asm/mach/arch.h>
37 #include <asm/mach/map.h>
38
39 #include <linux/platform_data/keypad-omap.h>
40 #include <mach/mux.h>
41
42 #include <mach/hardware.h>
43 #include "camera.h"
44 #include <mach/usb.h>
45
46 #include "ams-delta-fiq.h"
47 #include "board-ams-delta.h"
48 #include "iomap.h"
49 #include "common.h"
50
51 static const unsigned int ams_delta_keymap[] = {
52 KEY(0, 0, KEY_F1), /* Advert */
53
54 KEY(0, 3, KEY_COFFEE), /* Games */
55 KEY(0, 2, KEY_QUESTION), /* Directory */
56 KEY(2, 3, KEY_CONNECT), /* Internet */
57 KEY(1, 2, KEY_SHOP), /* Services */
58 KEY(1, 1, KEY_PHONE), /* VoiceMail */
59
60 KEY(0, 1, KEY_DELETE), /* Delete */
61 KEY(2, 2, KEY_PLAY), /* Play */
62 KEY(1, 0, KEY_PAGEUP), /* Up */
63 KEY(1, 3, KEY_PAGEDOWN), /* Down */
64 KEY(2, 0, KEY_EMAIL), /* ReadEmail */
65 KEY(2, 1, KEY_STOP), /* Stop */
66
67 /* Numeric keypad portion */
68 KEY(0, 7, KEY_KP1),
69 KEY(0, 6, KEY_KP2),
70 KEY(0, 5, KEY_KP3),
71 KEY(1, 7, KEY_KP4),
72 KEY(1, 6, KEY_KP5),
73 KEY(1, 5, KEY_KP6),
74 KEY(2, 7, KEY_KP7),
75 KEY(2, 6, KEY_KP8),
76 KEY(2, 5, KEY_KP9),
77 KEY(3, 6, KEY_KP0),
78 KEY(3, 7, KEY_KPASTERISK),
79 KEY(3, 5, KEY_KPDOT), /* # key */
80 KEY(7, 2, KEY_NUMLOCK), /* Mute */
81 KEY(7, 1, KEY_KPMINUS), /* Recall */
82 KEY(6, 1, KEY_KPPLUS), /* Redial */
83 KEY(7, 6, KEY_KPSLASH), /* Handsfree */
84 KEY(6, 0, KEY_ENTER), /* Video */
85
86 KEY(7, 4, KEY_CAMERA), /* Photo */
87
88 KEY(0, 4, KEY_F2), /* Home */
89 KEY(1, 4, KEY_F3), /* Office */
90 KEY(2, 4, KEY_F4), /* Mobile */
91 KEY(7, 7, KEY_F5), /* SMS */
92 KEY(7, 5, KEY_F6), /* Email */
93
94 /* QWERTY portion of keypad */
95 KEY(3, 4, KEY_Q),
96 KEY(3, 3, KEY_W),
97 KEY(3, 2, KEY_E),
98 KEY(3, 1, KEY_R),
99 KEY(3, 0, KEY_T),
100 KEY(4, 7, KEY_Y),
101 KEY(4, 6, KEY_U),
102 KEY(4, 5, KEY_I),
103 KEY(4, 4, KEY_O),
104 KEY(4, 3, KEY_P),
105
106 KEY(4, 2, KEY_A),
107 KEY(4, 1, KEY_S),
108 KEY(4, 0, KEY_D),
109 KEY(5, 7, KEY_F),
110 KEY(5, 6, KEY_G),
111 KEY(5, 5, KEY_H),
112 KEY(5, 4, KEY_J),
113 KEY(5, 3, KEY_K),
114 KEY(5, 2, KEY_L),
115
116 KEY(5, 1, KEY_Z),
117 KEY(5, 0, KEY_X),
118 KEY(6, 7, KEY_C),
119 KEY(6, 6, KEY_V),
120 KEY(6, 5, KEY_B),
121 KEY(6, 4, KEY_N),
122 KEY(6, 3, KEY_M),
123 KEY(6, 2, KEY_SPACE),
124
125 KEY(7, 0, KEY_LEFTSHIFT), /* Vol up */
126 KEY(7, 3, KEY_LEFTCTRL), /* Vol down */
127 };
128
129 #define LATCH1_PHYS 0x01000000
130 #define LATCH1_VIRT 0xEA000000
131 #define MODEM_PHYS 0x04000000
132 #define MODEM_VIRT 0xEB000000
133 #define LATCH2_PHYS 0x08000000
134 #define LATCH2_VIRT 0xEC000000
135
136 static struct map_desc ams_delta_io_desc[] __initdata = {
137 /* AMS_DELTA_LATCH1 */
138 {
139 .virtual = LATCH1_VIRT,
140 .pfn = __phys_to_pfn(LATCH1_PHYS),
141 .length = 0x01000000,
142 .type = MT_DEVICE
143 },
144 /* AMS_DELTA_LATCH2 */
145 {
146 .virtual = LATCH2_VIRT,
147 .pfn = __phys_to_pfn(LATCH2_PHYS),
148 .length = 0x01000000,
149 .type = MT_DEVICE
150 },
151 /* AMS_DELTA_MODEM */
152 {
153 .virtual = MODEM_VIRT,
154 .pfn = __phys_to_pfn(MODEM_PHYS),
155 .length = 0x01000000,
156 .type = MT_DEVICE
157 }
158 };
159
160 static const struct omap_lcd_config ams_delta_lcd_config __initconst = {
161 .ctrl_name = "internal",
162 };
163
164 static struct omap_usb_config ams_delta_usb_config __initdata = {
165 .register_host = 1,
166 .hmc_mode = 16,
167 .pins[0] = 2,
168 };
169
170 #define LATCH1_NGPIO 8
171
172 static struct resource latch1_resources[] = {
173 [0] = {
174 .name = "dat",
175 .start = LATCH1_PHYS,
176 .end = LATCH1_PHYS + (LATCH1_NGPIO - 1) / 8,
177 .flags = IORESOURCE_MEM,
178 },
179 };
180
181 #define LATCH1_LABEL "latch1"
182
183 static struct bgpio_pdata latch1_pdata = {
184 .label = LATCH1_LABEL,
185 .base = -1,
186 .ngpio = LATCH1_NGPIO,
187 };
188
189 static struct platform_device latch1_gpio_device = {
190 .name = "basic-mmio-gpio",
191 .id = 0,
192 .resource = latch1_resources,
193 .num_resources = ARRAY_SIZE(latch1_resources),
194 .dev = {
195 .platform_data = &latch1_pdata,
196 },
197 };
198
199 #define LATCH1_PIN_LED_CAMERA 0
200 #define LATCH1_PIN_LED_ADVERT 1
201 #define LATCH1_PIN_LED_MAIL 2
202 #define LATCH1_PIN_LED_HANDSFREE 3
203 #define LATCH1_PIN_LED_VOICEMAIL 4
204 #define LATCH1_PIN_LED_VOICE 5
205 #define LATCH1_PIN_DOCKIT1 6
206 #define LATCH1_PIN_DOCKIT2 7
207
208 #define LATCH2_NGPIO 16
209
210 static struct resource latch2_resources[] = {
211 [0] = {
212 .name = "dat",
213 .start = LATCH2_PHYS,
214 .end = LATCH2_PHYS + (LATCH2_NGPIO - 1) / 8,
215 .flags = IORESOURCE_MEM,
216 },
217 };
218
219 #define LATCH2_LABEL "latch2"
220
221 static struct bgpio_pdata latch2_pdata = {
222 .label = LATCH2_LABEL,
223 .base = -1,
224 .ngpio = LATCH2_NGPIO,
225 };
226
227 static struct platform_device latch2_gpio_device = {
228 .name = "basic-mmio-gpio",
229 .id = 1,
230 .resource = latch2_resources,
231 .num_resources = ARRAY_SIZE(latch2_resources),
232 .dev = {
233 .platform_data = &latch2_pdata,
234 },
235 };
236
237 #define LATCH2_PIN_LCD_VBLEN 0
238 #define LATCH2_PIN_LCD_NDISP 1
239 #define LATCH2_PIN_NAND_NCE 2
240 #define LATCH2_PIN_NAND_NRE 3
241 #define LATCH2_PIN_NAND_NWP 4
242 #define LATCH2_PIN_NAND_NWE 5
243 #define LATCH2_PIN_NAND_ALE 6
244 #define LATCH2_PIN_NAND_CLE 7
245 #define LATCH2_PIN_KEYBRD_PWR 8
246 #define LATCH2_PIN_KEYBRD_DATAOUT 9
247 #define LATCH2_PIN_SCARD_RSTIN 10
248 #define LATCH2_PIN_SCARD_CMDVCC 11
249 #define LATCH2_PIN_MODEM_NRESET 12
250 #define LATCH2_PIN_MODEM_CODEC 13
251 #define LATCH2_PIN_HANDSFREE_MUTE 14
252 #define LATCH2_PIN_HANDSET_MUTE 15
253
254 static struct regulator_consumer_supply modem_nreset_consumers[] = {
255 REGULATOR_SUPPLY("RESET#", "serial8250.1"),
256 REGULATOR_SUPPLY("POR", "cx20442-codec"),
257 };
258
259 static struct regulator_init_data modem_nreset_data = {
260 .constraints = {
261 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
262 .boot_on = 1,
263 },
264 .num_consumer_supplies = ARRAY_SIZE(modem_nreset_consumers),
265 .consumer_supplies = modem_nreset_consumers,
266 };
267
268 static struct fixed_voltage_config modem_nreset_config = {
269 .supply_name = "modem_nreset",
270 .microvolts = 3300000,
271 .startup_delay = 25000,
272 .enabled_at_boot = 1,
273 .init_data = &modem_nreset_data,
274 };
275
276 static struct platform_device modem_nreset_device = {
277 .name = "reg-fixed-voltage",
278 .id = -1,
279 .dev = {
280 .platform_data = &modem_nreset_config,
281 },
282 };
283
284 static struct gpiod_lookup_table ams_delta_nreset_gpiod_table = {
285 .dev_id = "reg-fixed-voltage",
286 .table = {
287 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_MODEM_NRESET,
288 NULL, GPIO_ACTIVE_HIGH),
289 { },
290 },
291 };
292
293 struct modem_private_data {
294 struct regulator *regulator;
295 };
296
297 static struct modem_private_data modem_priv;
298
299 /*
300 * Define partitions for flash device
301 */
302
303 static struct mtd_partition partition_info[] = {
304 { .name = "Kernel",
305 .offset = 0,
306 .size = 3 * SZ_1M + SZ_512K },
307 { .name = "u-boot",
308 .offset = 3 * SZ_1M + SZ_512K,
309 .size = SZ_256K },
310 { .name = "u-boot params",
311 .offset = 3 * SZ_1M + SZ_512K + SZ_256K,
312 .size = SZ_256K },
313 { .name = "Amstrad LDR",
314 .offset = 4 * SZ_1M,
315 .size = SZ_256K },
316 { .name = "File system",
317 .offset = 4 * SZ_1M + 1 * SZ_256K,
318 .size = 27 * SZ_1M },
319 { .name = "PBL reserved",
320 .offset = 32 * SZ_1M - 3 * SZ_256K,
321 .size = 3 * SZ_256K },
322 };
323
324 static struct gpio_nand_platdata nand_platdata = {
325 .parts = partition_info,
326 .num_parts = ARRAY_SIZE(partition_info),
327 };
328
329 static struct platform_device ams_delta_nand_device = {
330 .name = "ams-delta-nand",
331 .id = -1,
332 .dev = {
333 .platform_data = &nand_platdata,
334 },
335 };
336
337 #define OMAP_GPIO_LABEL "gpio-0-15"
338 #define OMAP_MPUIO_LABEL "mpuio"
339
340 static struct gpiod_lookup_table ams_delta_nand_gpio_table = {
341 .table = {
342 GPIO_LOOKUP(OMAP_GPIO_LABEL, AMS_DELTA_GPIO_PIN_NAND_RB, "rdy",
343 0),
344 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NCE, "nce",
345 GPIO_ACTIVE_LOW),
346 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NRE, "nre",
347 GPIO_ACTIVE_LOW),
348 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NWP, "nwp",
349 GPIO_ACTIVE_LOW),
350 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NWE, "nwe",
351 GPIO_ACTIVE_LOW),
352 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_ALE, "ale", 0),
353 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_CLE, "cle", 0),
354 GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 0, "data", 0, 0),
355 GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 1, "data", 1, 0),
356 GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 2, "data", 2, 0),
357 GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 3, "data", 3, 0),
358 GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 4, "data", 4, 0),
359 GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 5, "data", 5, 0),
360 GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 6, "data", 6, 0),
361 GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 7, "data", 7, 0),
362 { },
363 },
364 };
365
366 static struct resource ams_delta_kp_resources[] = {
367 [0] = {
368 .start = INT_KEYBOARD,
369 .end = INT_KEYBOARD,
370 .flags = IORESOURCE_IRQ,
371 },
372 };
373
374 static const struct matrix_keymap_data ams_delta_keymap_data = {
375 .keymap = ams_delta_keymap,
376 .keymap_size = ARRAY_SIZE(ams_delta_keymap),
377 };
378
379 static struct omap_kp_platform_data ams_delta_kp_data = {
380 .rows = 8,
381 .cols = 8,
382 .keymap_data = &ams_delta_keymap_data,
383 .delay = 9,
384 };
385
386 static struct platform_device ams_delta_kp_device = {
387 .name = "omap-keypad",
388 .id = -1,
389 .dev = {
390 .platform_data = &ams_delta_kp_data,
391 },
392 .num_resources = ARRAY_SIZE(ams_delta_kp_resources),
393 .resource = ams_delta_kp_resources,
394 };
395
396 static struct platform_device ams_delta_lcd_device = {
397 .name = "lcd_ams_delta",
398 .id = -1,
399 };
400
401 static struct gpiod_lookup_table ams_delta_lcd_gpio_table = {
402 .table = {
403 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_LCD_VBLEN, "vblen", 0),
404 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_LCD_NDISP, "ndisp", 0),
405 { },
406 },
407 };
408
409 static struct gpio_led gpio_leds[] __initdata = {
410 [LATCH1_PIN_LED_CAMERA] = {
411 .name = "camera",
412 .default_state = LEDS_GPIO_DEFSTATE_OFF,
413 #ifdef CONFIG_LEDS_TRIGGERS
414 .default_trigger = "ams_delta_camera",
415 #endif
416 },
417 [LATCH1_PIN_LED_ADVERT] = {
418 .name = "advert",
419 .default_state = LEDS_GPIO_DEFSTATE_OFF,
420 },
421 [LATCH1_PIN_LED_MAIL] = {
422 .name = "email",
423 .default_state = LEDS_GPIO_DEFSTATE_OFF,
424 },
425 [LATCH1_PIN_LED_HANDSFREE] = {
426 .name = "handsfree",
427 .default_state = LEDS_GPIO_DEFSTATE_OFF,
428 },
429 [LATCH1_PIN_LED_VOICEMAIL] = {
430 .name = "voicemail",
431 .default_state = LEDS_GPIO_DEFSTATE_OFF,
432 },
433 [LATCH1_PIN_LED_VOICE] = {
434 .name = "voice",
435 .default_state = LEDS_GPIO_DEFSTATE_OFF,
436 },
437 };
438
439 static const struct gpio_led_platform_data leds_pdata __initconst = {
440 .leds = gpio_leds,
441 .num_leds = ARRAY_SIZE(gpio_leds),
442 };
443
444 static struct gpiod_lookup_table leds_gpio_table = {
445 .table = {
446 GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_CAMERA, NULL,
447 LATCH1_PIN_LED_CAMERA, 0),
448 GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_ADVERT, NULL,
449 LATCH1_PIN_LED_ADVERT, 0),
450 GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_MAIL, NULL,
451 LATCH1_PIN_LED_MAIL, 0),
452 GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_HANDSFREE, NULL,
453 LATCH1_PIN_LED_HANDSFREE, 0),
454 GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_VOICEMAIL, NULL,
455 LATCH1_PIN_LED_VOICEMAIL, 0),
456 GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_VOICE, NULL,
457 LATCH1_PIN_LED_VOICE, 0),
458 { },
459 },
460 };
461
462 static struct i2c_board_info ams_delta_camera_board_info[] = {
463 {
464 I2C_BOARD_INFO("ov6650", 0x60),
465 },
466 };
467
468 #ifdef CONFIG_LEDS_TRIGGERS
469 DEFINE_LED_TRIGGER(ams_delta_camera_led_trigger);
470
471 static int ams_delta_camera_power(struct device *dev, int power)
472 {
473 /*
474 * turn on camera LED
475 */
476 if (power)
477 led_trigger_event(ams_delta_camera_led_trigger, LED_FULL);
478 else
479 led_trigger_event(ams_delta_camera_led_trigger, LED_OFF);
480 return 0;
481 }
482 #else
483 #define ams_delta_camera_power NULL
484 #endif
485
486 static struct soc_camera_link ams_delta_iclink = {
487 .bus_id = 0, /* OMAP1 SoC camera bus */
488 .i2c_adapter_id = 1,
489 .board_info = &ams_delta_camera_board_info[0],
490 .module_name = "ov6650",
491 .power = ams_delta_camera_power,
492 };
493
494 static struct platform_device ams_delta_camera_device = {
495 .name = "soc-camera-pdrv",
496 .id = 0,
497 .dev = {
498 .platform_data = &ams_delta_iclink,
499 },
500 };
501
502 static struct omap1_cam_platform_data ams_delta_camera_platform_data = {
503 .camexclk_khz = 12000, /* default 12MHz clock, no extra DPLL */
504 .lclk_khz_max = 1334, /* results in 5fps CIF, 10fps QCIF */
505 };
506
507 static struct platform_device ams_delta_audio_device = {
508 .name = "ams-delta-audio",
509 .id = -1,
510 };
511
512 static struct gpiod_lookup_table ams_delta_audio_gpio_table = {
513 .table = {
514 GPIO_LOOKUP(OMAP_GPIO_LABEL, AMS_DELTA_GPIO_PIN_HOOK_SWITCH,
515 "hook_switch", 0),
516 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_MODEM_CODEC,
517 "modem_codec", 0),
518 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_HANDSFREE_MUTE,
519 "handsfree_mute", 0),
520 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_HANDSET_MUTE,
521 "handset_mute", 0),
522 { },
523 },
524 };
525
526 static struct platform_device cx20442_codec_device = {
527 .name = "cx20442-codec",
528 .id = -1,
529 };
530
531 static struct resource ams_delta_serio_resources[] = {
532 {
533 .flags = IORESOURCE_IRQ,
534 /*
535 * Initialize IRQ resource with invalid IRQ number.
536 * It will be replaced with dynamically allocated GPIO IRQ
537 * obtained from GPIO chip as soon as the chip is available.
538 */
539 .start = -EINVAL,
540 .end = -EINVAL,
541 },
542 };
543
544 static struct platform_device ams_delta_serio_device = {
545 .name = "ams-delta-serio",
546 .id = PLATFORM_DEVID_NONE,
547 .dev = {
548 /*
549 * Initialize .platform_data explicitly with NULL to
550 * indicate it is going to be used. It will be replaced
551 * with FIQ buffer address as soon as FIQ is initialized.
552 */
553 .platform_data = NULL,
554 },
555 .num_resources = ARRAY_SIZE(ams_delta_serio_resources),
556 .resource = ams_delta_serio_resources,
557 };
558
559 static struct regulator_consumer_supply keybrd_pwr_consumers[] = {
560 /*
561 * Initialize supply .dev_name with NULL. It will be replaced
562 * with serio dev_name() as soon as the serio device is registered.
563 */
564 REGULATOR_SUPPLY("vcc", NULL),
565 };
566
567 static struct regulator_init_data keybrd_pwr_initdata = {
568 .constraints = {
569 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
570 },
571 .num_consumer_supplies = ARRAY_SIZE(keybrd_pwr_consumers),
572 .consumer_supplies = keybrd_pwr_consumers,
573 };
574
575 static struct fixed_voltage_config keybrd_pwr_config = {
576 .supply_name = "keybrd_pwr",
577 .microvolts = 5000000,
578 .init_data = &keybrd_pwr_initdata,
579 };
580
581 static struct platform_device keybrd_pwr_device = {
582 .name = "reg-fixed-voltage",
583 .id = PLATFORM_DEVID_AUTO,
584 .dev = {
585 .platform_data = &keybrd_pwr_config,
586 },
587 };
588
589 static struct gpiod_lookup_table keybrd_pwr_gpio_table = {
590 .table = {
591 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_KEYBRD_PWR, NULL,
592 GPIO_ACTIVE_HIGH),
593 { },
594 },
595 };
596
597 static struct platform_device *ams_delta_devices[] __initdata = {
598 &latch1_gpio_device,
599 &latch2_gpio_device,
600 &ams_delta_kp_device,
601 &ams_delta_camera_device,
602 &ams_delta_audio_device,
603 &ams_delta_serio_device,
604 &ams_delta_nand_device,
605 &ams_delta_lcd_device,
606 &cx20442_codec_device,
607 };
608
609 static struct gpiod_lookup_table *ams_delta_gpio_tables[] __initdata = {
610 &ams_delta_nreset_gpiod_table,
611 &ams_delta_audio_gpio_table,
612 &keybrd_pwr_gpio_table,
613 &ams_delta_lcd_gpio_table,
614 &ams_delta_nand_gpio_table,
615 };
616
617 /*
618 * Some drivers may not use GPIO lookup tables but need to be provided
619 * with GPIO numbers. The same applies to GPIO based IRQ lines - some
620 * drivers may even not use GPIO layer but expect just IRQ numbers.
621 * We could either define GPIO lookup tables then use them on behalf
622 * of those devices, or we can use GPIO driver level methods for
623 * identification of GPIO and IRQ numbers. For the purpose of the latter,
624 * defina a helper function which identifies GPIO chips by their labels.
625 */
626 static int gpiochip_match_by_label(struct gpio_chip *chip, void *data)
627 {
628 char *label = data;
629
630 return !strcmp(label, chip->label);
631 }
632
633 static struct gpiod_hog ams_delta_gpio_hogs[] = {
634 GPIO_HOG(LATCH2_LABEL, LATCH2_PIN_KEYBRD_DATAOUT, "keybrd_dataout",
635 GPIO_ACTIVE_HIGH, GPIOD_OUT_LOW),
636 {},
637 };
638
639 static struct plat_serial8250_port ams_delta_modem_ports[];
640
641 /*
642 * Obtain MODEM IRQ GPIO descriptor using its hardware pin
643 * number and assign related IRQ number to the MODEM port.
644 * Keep the GPIO descriptor open so nobody steps in.
645 */
646 static void __init modem_assign_irq(struct gpio_chip *chip)
647 {
648 struct gpio_desc *gpiod;
649
650 gpiod = gpiochip_request_own_desc(chip, AMS_DELTA_GPIO_PIN_MODEM_IRQ,
651 "modem_irq", GPIO_ACTIVE_HIGH,
652 GPIOD_IN);
653 if (IS_ERR(gpiod)) {
654 pr_err("%s: modem IRQ GPIO request failed (%ld)\n", __func__,
655 PTR_ERR(gpiod));
656 } else {
657 ams_delta_modem_ports[0].irq = gpiod_to_irq(gpiod);
658 }
659 }
660
661 /*
662 * The purpose of this function is to take care of proper initialization of
663 * devices and data structures which depend on GPIO lines provided by OMAP GPIO
664 * banks but their drivers don't use GPIO lookup tables or GPIO layer at all.
665 * The function may be called as soon as OMAP GPIO devices are probed.
666 * Since that happens at postcore_initcall, it can be called successfully
667 * from init_machine or later.
668 * Dependent devices may be registered from within this function or later.
669 */
670 static void __init omap_gpio_deps_init(void)
671 {
672 struct gpio_chip *chip;
673
674 chip = gpiochip_find(OMAP_GPIO_LABEL, gpiochip_match_by_label);
675 if (!chip) {
676 pr_err("%s: OMAP GPIO chip not found\n", __func__);
677 return;
678 }
679
680 /*
681 * Start with FIQ initialization as it may have to request
682 * and release successfully each OMAP GPIO pin in turn.
683 */
684 ams_delta_init_fiq(chip, &ams_delta_serio_device);
685
686 modem_assign_irq(chip);
687 }
688
689 /*
690 * Initialize latch2 pins with values which are safe for dependent on-board
691 * devices or useful for their successull initialization even before GPIO
692 * driver takes control over the latch pins:
693 * - LATCH2_PIN_LCD_VBLEN = 0
694 * - LATCH2_PIN_LCD_NDISP = 0 Keep LCD device powered off before its
695 * driver takes control over it.
696 * - LATCH2_PIN_NAND_NCE = 0
697 * - LATCH2_PIN_NAND_NWP = 0 Keep NAND device down and write-
698 * protected before its driver takes
699 * control over it.
700 * - LATCH2_PIN_KEYBRD_PWR = 0 Keep keyboard powered off before serio
701 * driver takes control over it.
702 * - LATCH2_PIN_KEYBRD_DATAOUT = 0 Keep low to avoid corruption of first
703 * byte of data received from attached
704 * keyboard when serio device is probed;
705 * the pin is also hogged low by the latch2
706 * GPIO driver as soon as it is ready.
707 * - LATCH2_PIN_MODEM_NRESET = 1 Enable voice MODEM device, allowing for
708 * its successful probe even before a
709 * regulator it depends on, which in turn
710 * takes control over the pin, is set up.
711 * - LATCH2_PIN_MODEM_CODEC = 1 Attach voice MODEM CODEC data port
712 * to the MODEM so the CODEC is under
713 * control even if audio driver doesn't
714 * take it over.
715 */
716 static void __init ams_delta_latch2_init(void)
717 {
718 u16 latch2 = 1 << LATCH2_PIN_MODEM_NRESET | 1 << LATCH2_PIN_MODEM_CODEC;
719
720 __raw_writew(latch2, LATCH2_VIRT);
721 }
722
723 static void __init ams_delta_init(void)
724 {
725 struct platform_device *leds_pdev;
726
727 /* mux pins for uarts */
728 omap_cfg_reg(UART1_TX);
729 omap_cfg_reg(UART1_RTS);
730
731 /* parallel camera interface */
732 omap_cfg_reg(H19_1610_CAM_EXCLK);
733 omap_cfg_reg(J15_1610_CAM_LCLK);
734 omap_cfg_reg(L18_1610_CAM_VS);
735 omap_cfg_reg(L15_1610_CAM_HS);
736 omap_cfg_reg(L19_1610_CAM_D0);
737 omap_cfg_reg(K14_1610_CAM_D1);
738 omap_cfg_reg(K15_1610_CAM_D2);
739 omap_cfg_reg(K19_1610_CAM_D3);
740 omap_cfg_reg(K18_1610_CAM_D4);
741 omap_cfg_reg(J14_1610_CAM_D5);
742 omap_cfg_reg(J19_1610_CAM_D6);
743 omap_cfg_reg(J18_1610_CAM_D7);
744
745 omap_gpio_deps_init();
746 ams_delta_latch2_init();
747 gpiod_add_hogs(ams_delta_gpio_hogs);
748
749 omap_serial_init();
750 omap_register_i2c_bus(1, 100, NULL, 0);
751
752 omap1_usb_init(&ams_delta_usb_config);
753 omap1_set_camera_info(&ams_delta_camera_platform_data);
754 #ifdef CONFIG_LEDS_TRIGGERS
755 led_trigger_register_simple("ams_delta_camera",
756 &ams_delta_camera_led_trigger);
757 #endif
758 platform_add_devices(ams_delta_devices, ARRAY_SIZE(ams_delta_devices));
759
760 /*
761 * As soon as regulator consumers have been registered, assign their
762 * dev_names to consumer supply entries of respective regulators.
763 */
764 keybrd_pwr_consumers[0].dev_name =
765 dev_name(&ams_delta_serio_device.dev);
766
767 /*
768 * Once consumer supply entries are populated with dev_names,
769 * register regulator devices. At this stage only the keyboard
770 * power regulator has its consumer supply table fully populated.
771 */
772 platform_device_register(&keybrd_pwr_device);
773
774 /*
775 * As soon as GPIO consumers have been registered, assign
776 * their dev_names to respective GPIO lookup tables.
777 */
778 ams_delta_audio_gpio_table.dev_id =
779 dev_name(&ams_delta_audio_device.dev);
780 keybrd_pwr_gpio_table.dev_id = dev_name(&keybrd_pwr_device.dev);
781 ams_delta_nand_gpio_table.dev_id = dev_name(&ams_delta_nand_device.dev);
782 ams_delta_lcd_gpio_table.dev_id = dev_name(&ams_delta_lcd_device.dev);
783
784 /*
785 * Once GPIO lookup tables are populated with dev_names, register them.
786 */
787 gpiod_add_lookup_tables(ams_delta_gpio_tables,
788 ARRAY_SIZE(ams_delta_gpio_tables));
789
790 leds_pdev = gpio_led_register_device(PLATFORM_DEVID_NONE, &leds_pdata);
791 if (!IS_ERR_OR_NULL(leds_pdev)) {
792 leds_gpio_table.dev_id = dev_name(&leds_pdev->dev);
793 gpiod_add_lookup_table(&leds_gpio_table);
794 }
795
796 omap_writew(omap_readw(ARM_RSTCT1) | 0x0004, ARM_RSTCT1);
797
798 omapfb_set_lcd_config(&ams_delta_lcd_config);
799 }
800
801 static void modem_pm(struct uart_port *port, unsigned int state, unsigned old)
802 {
803 struct modem_private_data *priv = port->private_data;
804 int ret;
805
806 if (!priv)
807 return;
808
809 if (IS_ERR(priv->regulator))
810 return;
811
812 if (state == old)
813 return;
814
815 if (state == 0)
816 ret = regulator_enable(priv->regulator);
817 else if (old == 0)
818 ret = regulator_disable(priv->regulator);
819 else
820 ret = 0;
821
822 if (ret)
823 dev_warn(port->dev,
824 "ams_delta modem_pm: failed to %sable regulator: %d\n",
825 state ? "dis" : "en", ret);
826 }
827
828 static struct plat_serial8250_port ams_delta_modem_ports[] = {
829 {
830 .membase = IOMEM(MODEM_VIRT),
831 .mapbase = MODEM_PHYS,
832 .irq = IRQ_NOTCONNECTED, /* changed later */
833 .flags = UPF_BOOT_AUTOCONF,
834 .irqflags = IRQF_TRIGGER_RISING,
835 .iotype = UPIO_MEM,
836 .regshift = 1,
837 .uartclk = BASE_BAUD * 16,
838 .pm = modem_pm,
839 .private_data = &modem_priv,
840 },
841 { },
842 };
843
844 static struct platform_device ams_delta_modem_device = {
845 .name = "serial8250",
846 .id = PLAT8250_DEV_PLATFORM1,
847 .dev = {
848 .platform_data = ams_delta_modem_ports,
849 },
850 };
851
852 static int __init modem_nreset_init(void)
853 {
854 int err;
855
856 err = platform_device_register(&modem_nreset_device);
857 if (err)
858 pr_err("Couldn't register the modem regulator device\n");
859
860 return err;
861 }
862
863
864 /*
865 * This function expects MODEM IRQ number already assigned to the port.
866 * The MODEM device requires its RESET# pin kept high during probe.
867 * That requirement can be fulfilled in several ways:
868 * - with a descriptor of already functional modem_nreset regulator
869 * assigned to the MODEM private data,
870 * - with the regulator not yet controlled by modem_pm function but
871 * already enabled by default on probe,
872 * - before the modem_nreset regulator is probed, with the pin already
873 * set high explicitly.
874 * The last one is already guaranteed by ams_delta_latch2_init() called
875 * from machine_init.
876 * In order to avoid taking over ttyS0 device slot, the MODEM device
877 * should be registered after OMAP serial ports. Since those ports
878 * are registered at arch_initcall, this function can be called safely
879 * at arch_initcall_sync earliest.
880 */
881 static int __init ams_delta_modem_init(void)
882 {
883 int err;
884
885 if (!machine_is_ams_delta())
886 return -ENODEV;
887
888 omap_cfg_reg(M14_1510_GPIO2);
889
890 /* Initialize the modem_nreset regulator consumer before use */
891 modem_priv.regulator = ERR_PTR(-ENODEV);
892
893 err = platform_device_register(&ams_delta_modem_device);
894
895 return err;
896 }
897 arch_initcall_sync(ams_delta_modem_init);
898
899 static int __init late_init(void)
900 {
901 int err;
902
903 err = modem_nreset_init();
904 if (err)
905 return err;
906
907 /*
908 * Once the modem device is registered, the modem_nreset
909 * regulator can be requested on behalf of that device.
910 */
911 modem_priv.regulator = regulator_get(&ams_delta_modem_device.dev,
912 "RESET#");
913 if (IS_ERR(modem_priv.regulator)) {
914 err = PTR_ERR(modem_priv.regulator);
915 goto unregister;
916 }
917 return 0;
918
919 unregister:
920 platform_device_unregister(&ams_delta_modem_device);
921 return err;
922 }
923
924 static void __init ams_delta_init_late(void)
925 {
926 omap1_init_late();
927 late_init();
928 }
929
930 static void __init ams_delta_map_io(void)
931 {
932 omap15xx_map_io();
933 iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc));
934 }
935
936 MACHINE_START(AMS_DELTA, "Amstrad E3 (Delta)")
937 /* Maintainer: Jonathan McDowell <noodles@earth.li> */
938 .atag_offset = 0x100,
939 .map_io = ams_delta_map_io,
940 .init_early = omap1_init_early,
941 .init_irq = omap1_init_irq,
942 .handle_irq = omap1_handle_irq,
943 .init_machine = ams_delta_init,
944 .init_late = ams_delta_init_late,
945 .init_time = omap1_timer_init,
946 .restart = omap1_restart,
947 MACHINE_END
Linux with added FPC-III support