xref: /linux/arch/arm/mach-omap1/board-ams-delta.c (revision 25aee3debe0464f6c680173041fa3de30ec9ff54)
1 /*
2  * linux/arch/arm/mach-omap1/board-ams-delta.c
3  *
4  * Modified from board-generic.c
5  *
6  * Board specific inits for the Amstrad E3 (codename Delta) videophone
7  *
8  * Copyright (C) 2006 Jonathan McDowell <noodles@earth.li>
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License version 2 as
12  * published by the Free Software Foundation.
13  */
14 #include <linux/basic_mmio_gpio.h>
15 #include <linux/gpio.h>
16 #include <linux/kernel.h>
17 #include <linux/init.h>
18 #include <linux/input.h>
19 #include <linux/interrupt.h>
20 #include <linux/leds.h>
21 #include <linux/platform_device.h>
22 #include <linux/regulator/consumer.h>
23 #include <linux/regulator/fixed.h>
24 #include <linux/regulator/machine.h>
25 #include <linux/serial_8250.h>
26 #include <linux/export.h>
27 #include <linux/omapfb.h>
28 #include <linux/io.h>
29 
30 #include <media/soc_camera.h>
31 
32 #include <asm/serial.h>
33 #include <asm/mach-types.h>
34 #include <asm/mach/arch.h>
35 #include <asm/mach/map.h>
36 
37 #include <plat/board-ams-delta.h>
38 #include <plat/keypad.h>
39 #include <plat/mux.h>
40 #include <plat/board.h>
41 
42 #include <mach/hardware.h>
43 #include <mach/ams-delta-fiq.h>
44 #include <mach/camera.h>
45 #include <mach/usb.h>
46 
47 #include "iomap.h"
48 #include "common.h"
49 
50 static const unsigned int ams_delta_keymap[] = {
51 	KEY(0, 0, KEY_F1),		/* Advert    */
52 
53 	KEY(0, 3, KEY_COFFEE),		/* Games     */
54 	KEY(0, 2, KEY_QUESTION),	/* Directory */
55 	KEY(2, 3, KEY_CONNECT),		/* Internet  */
56 	KEY(1, 2, KEY_SHOP),		/* Services  */
57 	KEY(1, 1, KEY_PHONE),		/* VoiceMail */
58 
59 	KEY(0, 1, KEY_DELETE),		/* Delete    */
60 	KEY(2, 2, KEY_PLAY),		/* Play      */
61 	KEY(1, 0, KEY_PAGEUP),		/* Up        */
62 	KEY(1, 3, KEY_PAGEDOWN),	/* Down      */
63 	KEY(2, 0, KEY_EMAIL),		/* ReadEmail */
64 	KEY(2, 1, KEY_STOP),		/* Stop      */
65 
66 	/* Numeric keypad portion */
67 	KEY(0, 7, KEY_KP1),
68 	KEY(0, 6, KEY_KP2),
69 	KEY(0, 5, KEY_KP3),
70 	KEY(1, 7, KEY_KP4),
71 	KEY(1, 6, KEY_KP5),
72 	KEY(1, 5, KEY_KP6),
73 	KEY(2, 7, KEY_KP7),
74 	KEY(2, 6, KEY_KP8),
75 	KEY(2, 5, KEY_KP9),
76 	KEY(3, 6, KEY_KP0),
77 	KEY(3, 7, KEY_KPASTERISK),
78 	KEY(3, 5, KEY_KPDOT),		/* # key     */
79 	KEY(7, 2, KEY_NUMLOCK),		/* Mute      */
80 	KEY(7, 1, KEY_KPMINUS),		/* Recall    */
81 	KEY(6, 1, KEY_KPPLUS),		/* Redial    */
82 	KEY(7, 6, KEY_KPSLASH),		/* Handsfree */
83 	KEY(6, 0, KEY_ENTER),		/* Video     */
84 
85 	KEY(7, 4, KEY_CAMERA),		/* Photo     */
86 
87 	KEY(0, 4, KEY_F2),		/* Home      */
88 	KEY(1, 4, KEY_F3),		/* Office    */
89 	KEY(2, 4, KEY_F4),		/* Mobile    */
90 	KEY(7, 7, KEY_F5),		/* SMS       */
91 	KEY(7, 5, KEY_F6),		/* Email     */
92 
93 	/* QWERTY portion of keypad */
94 	KEY(3, 4, KEY_Q),
95 	KEY(3, 3, KEY_W),
96 	KEY(3, 2, KEY_E),
97 	KEY(3, 1, KEY_R),
98 	KEY(3, 0, KEY_T),
99 	KEY(4, 7, KEY_Y),
100 	KEY(4, 6, KEY_U),
101 	KEY(4, 5, KEY_I),
102 	KEY(4, 4, KEY_O),
103 	KEY(4, 3, KEY_P),
104 
105 	KEY(4, 2, KEY_A),
106 	KEY(4, 1, KEY_S),
107 	KEY(4, 0, KEY_D),
108 	KEY(5, 7, KEY_F),
109 	KEY(5, 6, KEY_G),
110 	KEY(5, 5, KEY_H),
111 	KEY(5, 4, KEY_J),
112 	KEY(5, 3, KEY_K),
113 	KEY(5, 2, KEY_L),
114 
115 	KEY(5, 1, KEY_Z),
116 	KEY(5, 0, KEY_X),
117 	KEY(6, 7, KEY_C),
118 	KEY(6, 6, KEY_V),
119 	KEY(6, 5, KEY_B),
120 	KEY(6, 4, KEY_N),
121 	KEY(6, 3, KEY_M),
122 	KEY(6, 2, KEY_SPACE),
123 
124 	KEY(7, 0, KEY_LEFTSHIFT),	/* Vol up    */
125 	KEY(7, 3, KEY_LEFTCTRL),	/* Vol down  */
126 };
127 
128 #define LATCH1_PHYS	0x01000000
129 #define LATCH1_VIRT	0xEA000000
130 #define MODEM_PHYS	0x04000000
131 #define MODEM_VIRT	0xEB000000
132 #define LATCH2_PHYS	0x08000000
133 #define LATCH2_VIRT	0xEC000000
134 
135 static struct map_desc ams_delta_io_desc[] __initdata = {
136 	/* AMS_DELTA_LATCH1 */
137 	{
138 		.virtual	= LATCH1_VIRT,
139 		.pfn		= __phys_to_pfn(LATCH1_PHYS),
140 		.length		= 0x01000000,
141 		.type		= MT_DEVICE
142 	},
143 	/* AMS_DELTA_LATCH2 */
144 	{
145 		.virtual	= LATCH2_VIRT,
146 		.pfn		= __phys_to_pfn(LATCH2_PHYS),
147 		.length		= 0x01000000,
148 		.type		= MT_DEVICE
149 	},
150 	/* AMS_DELTA_MODEM */
151 	{
152 		.virtual	= MODEM_VIRT,
153 		.pfn		= __phys_to_pfn(MODEM_PHYS),
154 		.length		= 0x01000000,
155 		.type		= MT_DEVICE
156 	}
157 };
158 
159 static struct omap_lcd_config ams_delta_lcd_config __initdata = {
160 	.ctrl_name	= "internal",
161 };
162 
163 static struct omap_usb_config ams_delta_usb_config = {
164 	.register_host	= 1,
165 	.hmc_mode	= 16,
166 	.pins[0]	= 2,
167 };
168 
169 #define LATCH1_GPIO_BASE	232
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 static struct bgpio_pdata latch1_pdata = {
182 	.base	= LATCH1_GPIO_BASE,
183 	.ngpio	= LATCH1_NGPIO,
184 };
185 
186 static struct platform_device latch1_gpio_device = {
187 	.name		= "basic-mmio-gpio",
188 	.id		= 0,
189 	.resource	= latch1_resources,
190 	.num_resources	= ARRAY_SIZE(latch1_resources),
191 	.dev		= {
192 		.platform_data	= &latch1_pdata,
193 	},
194 };
195 
196 static struct resource latch2_resources[] = {
197 	[0] = {
198 		.name	= "dat",
199 		.start	= LATCH2_PHYS,
200 		.end	= LATCH2_PHYS + (AMS_DELTA_LATCH2_NGPIO - 1) / 8,
201 		.flags	= IORESOURCE_MEM,
202 	},
203 };
204 
205 static struct bgpio_pdata latch2_pdata = {
206 	.base	= AMS_DELTA_LATCH2_GPIO_BASE,
207 	.ngpio	= AMS_DELTA_LATCH2_NGPIO,
208 };
209 
210 static struct platform_device latch2_gpio_device = {
211 	.name		= "basic-mmio-gpio",
212 	.id		= 1,
213 	.resource	= latch2_resources,
214 	.num_resources	= ARRAY_SIZE(latch2_resources),
215 	.dev		= {
216 		.platform_data	= &latch2_pdata,
217 	},
218 };
219 
220 static const struct gpio latch_gpios[] __initconst = {
221 	{
222 		.gpio	= LATCH1_GPIO_BASE + 6,
223 		.flags	= GPIOF_OUT_INIT_LOW,
224 		.label	= "dockit1",
225 	},
226 	{
227 		.gpio	= LATCH1_GPIO_BASE + 7,
228 		.flags	= GPIOF_OUT_INIT_LOW,
229 		.label	= "dockit2",
230 	},
231 	{
232 		.gpio	= AMS_DELTA_GPIO_PIN_SCARD_RSTIN,
233 		.flags	= GPIOF_OUT_INIT_LOW,
234 		.label	= "scard_rstin",
235 	},
236 	{
237 		.gpio	= AMS_DELTA_GPIO_PIN_SCARD_CMDVCC,
238 		.flags	= GPIOF_OUT_INIT_LOW,
239 		.label	= "scard_cmdvcc",
240 	},
241 	{
242 		.gpio	= AMS_DELTA_GPIO_PIN_MODEM_CODEC,
243 		.flags	= GPIOF_OUT_INIT_LOW,
244 		.label	= "modem_codec",
245 	},
246 	{
247 		.gpio	= AMS_DELTA_LATCH2_GPIO_BASE + 14,
248 		.flags	= GPIOF_OUT_INIT_LOW,
249 		.label	= "hookflash1",
250 	},
251 	{
252 		.gpio	= AMS_DELTA_LATCH2_GPIO_BASE + 15,
253 		.flags	= GPIOF_OUT_INIT_LOW,
254 		.label	= "hookflash2",
255 	},
256 };
257 
258 static struct regulator_consumer_supply modem_nreset_consumers[] = {
259 	REGULATOR_SUPPLY("RESET#", "serial8250.1"),
260 	REGULATOR_SUPPLY("POR", "cx20442-codec"),
261 };
262 
263 static struct regulator_init_data modem_nreset_data = {
264 	.constraints		= {
265 		.valid_ops_mask		= REGULATOR_CHANGE_STATUS,
266 		.boot_on		= 1,
267 	},
268 	.num_consumer_supplies	= ARRAY_SIZE(modem_nreset_consumers),
269 	.consumer_supplies	= modem_nreset_consumers,
270 };
271 
272 static struct fixed_voltage_config modem_nreset_config = {
273 	.supply_name		= "modem_nreset",
274 	.microvolts		= 3300000,
275 	.gpio			= AMS_DELTA_GPIO_PIN_MODEM_NRESET,
276 	.startup_delay		= 25000,
277 	.enable_high		= 1,
278 	.enabled_at_boot	= 1,
279 	.init_data		= &modem_nreset_data,
280 };
281 
282 static struct platform_device modem_nreset_device = {
283 	.name	= "reg-fixed-voltage",
284 	.id	= -1,
285 	.dev	= {
286 		.platform_data	= &modem_nreset_config,
287 	},
288 };
289 
290 struct modem_private_data {
291 	struct regulator *regulator;
292 };
293 
294 static struct modem_private_data modem_priv;
295 
296 void ams_delta_latch_write(int base, int ngpio, u16 mask, u16 value)
297 {
298 	int bit = 0;
299 	u16 bitpos = 1 << bit;
300 
301 	for (; bit < ngpio; bit++, bitpos = bitpos << 1) {
302 		if (!(mask & bitpos))
303 			continue;
304 		else
305 			gpio_set_value(base + bit, (value & bitpos) != 0);
306 	}
307 }
308 EXPORT_SYMBOL(ams_delta_latch_write);
309 
310 static struct resource ams_delta_nand_resources[] = {
311 	[0] = {
312 		.start	= OMAP1_MPUIO_BASE,
313 		.end	= OMAP1_MPUIO_BASE +
314 				OMAP_MPUIO_IO_CNTL + sizeof(u32) - 1,
315 		.flags	= IORESOURCE_MEM,
316 	},
317 };
318 
319 static struct platform_device ams_delta_nand_device = {
320 	.name	= "ams-delta-nand",
321 	.id	= -1,
322 	.num_resources	= ARRAY_SIZE(ams_delta_nand_resources),
323 	.resource	= ams_delta_nand_resources,
324 };
325 
326 static struct resource ams_delta_kp_resources[] = {
327 	[0] = {
328 		.start	= INT_KEYBOARD,
329 		.end	= INT_KEYBOARD,
330 		.flags	= IORESOURCE_IRQ,
331 	},
332 };
333 
334 static const struct matrix_keymap_data ams_delta_keymap_data = {
335 	.keymap		= ams_delta_keymap,
336 	.keymap_size	= ARRAY_SIZE(ams_delta_keymap),
337 };
338 
339 static struct omap_kp_platform_data ams_delta_kp_data = {
340 	.rows		= 8,
341 	.cols		= 8,
342 	.keymap_data	= &ams_delta_keymap_data,
343 	.delay		= 9,
344 };
345 
346 static struct platform_device ams_delta_kp_device = {
347 	.name		= "omap-keypad",
348 	.id		= -1,
349 	.dev		= {
350 		.platform_data = &ams_delta_kp_data,
351 	},
352 	.num_resources	= ARRAY_SIZE(ams_delta_kp_resources),
353 	.resource	= ams_delta_kp_resources,
354 };
355 
356 static struct platform_device ams_delta_lcd_device = {
357 	.name	= "lcd_ams_delta",
358 	.id	= -1,
359 };
360 
361 static const struct gpio_led gpio_leds[] __initconst = {
362 	{
363 		.name		 = "camera",
364 		.gpio		 = LATCH1_GPIO_BASE + 0,
365 		.default_state	 = LEDS_GPIO_DEFSTATE_OFF,
366 #ifdef CONFIG_LEDS_TRIGGERS
367 		.default_trigger = "ams_delta_camera",
368 #endif
369 	},
370 	{
371 		.name		 = "advert",
372 		.gpio		 = LATCH1_GPIO_BASE + 1,
373 		.default_state	 = LEDS_GPIO_DEFSTATE_OFF,
374 	},
375 	{
376 		.name		 = "email",
377 		.gpio		 = LATCH1_GPIO_BASE + 2,
378 		.default_state	 = LEDS_GPIO_DEFSTATE_OFF,
379 	},
380 	{
381 		.name		 = "handsfree",
382 		.gpio		 = LATCH1_GPIO_BASE + 3,
383 		.default_state	 = LEDS_GPIO_DEFSTATE_OFF,
384 	},
385 	{
386 		.name		 = "voicemail",
387 		.gpio		 = LATCH1_GPIO_BASE + 4,
388 		.default_state	 = LEDS_GPIO_DEFSTATE_OFF,
389 	},
390 	{
391 		.name		 = "voice",
392 		.gpio		 = LATCH1_GPIO_BASE + 5,
393 		.default_state	 = LEDS_GPIO_DEFSTATE_OFF,
394 	},
395 };
396 
397 static const struct gpio_led_platform_data leds_pdata __initconst = {
398 	.leds		= gpio_leds,
399 	.num_leds	= ARRAY_SIZE(gpio_leds),
400 };
401 
402 static struct i2c_board_info ams_delta_camera_board_info[] = {
403 	{
404 		I2C_BOARD_INFO("ov6650", 0x60),
405 	},
406 };
407 
408 #ifdef CONFIG_LEDS_TRIGGERS
409 DEFINE_LED_TRIGGER(ams_delta_camera_led_trigger);
410 
411 static int ams_delta_camera_power(struct device *dev, int power)
412 {
413 	/*
414 	 * turn on camera LED
415 	 */
416 	if (power)
417 		led_trigger_event(ams_delta_camera_led_trigger, LED_FULL);
418 	else
419 		led_trigger_event(ams_delta_camera_led_trigger, LED_OFF);
420 	return 0;
421 }
422 #else
423 #define ams_delta_camera_power	NULL
424 #endif
425 
426 static struct soc_camera_link ams_delta_iclink = {
427 	.bus_id         = 0,	/* OMAP1 SoC camera bus */
428 	.i2c_adapter_id = 1,
429 	.board_info     = &ams_delta_camera_board_info[0],
430 	.module_name    = "ov6650",
431 	.power		= ams_delta_camera_power,
432 };
433 
434 static struct platform_device ams_delta_camera_device = {
435 	.name   = "soc-camera-pdrv",
436 	.id     = 0,
437 	.dev    = {
438 		.platform_data = &ams_delta_iclink,
439 	},
440 };
441 
442 static struct omap1_cam_platform_data ams_delta_camera_platform_data = {
443 	.camexclk_khz	= 12000,	/* default 12MHz clock, no extra DPLL */
444 	.lclk_khz_max	= 1334,		/* results in 5fps CIF, 10fps QCIF */
445 };
446 
447 static struct platform_device *ams_delta_devices[] __initdata = {
448 	&latch1_gpio_device,
449 	&latch2_gpio_device,
450 	&ams_delta_kp_device,
451 	&ams_delta_camera_device,
452 };
453 
454 static struct platform_device *late_devices[] __initdata = {
455 	&ams_delta_nand_device,
456 	&ams_delta_lcd_device,
457 };
458 
459 static void __init ams_delta_init(void)
460 {
461 	/* mux pins for uarts */
462 	omap_cfg_reg(UART1_TX);
463 	omap_cfg_reg(UART1_RTS);
464 
465 	/* parallel camera interface */
466 	omap_cfg_reg(H19_1610_CAM_EXCLK);
467 	omap_cfg_reg(J15_1610_CAM_LCLK);
468 	omap_cfg_reg(L18_1610_CAM_VS);
469 	omap_cfg_reg(L15_1610_CAM_HS);
470 	omap_cfg_reg(L19_1610_CAM_D0);
471 	omap_cfg_reg(K14_1610_CAM_D1);
472 	omap_cfg_reg(K15_1610_CAM_D2);
473 	omap_cfg_reg(K19_1610_CAM_D3);
474 	omap_cfg_reg(K18_1610_CAM_D4);
475 	omap_cfg_reg(J14_1610_CAM_D5);
476 	omap_cfg_reg(J19_1610_CAM_D6);
477 	omap_cfg_reg(J18_1610_CAM_D7);
478 
479 	omap_serial_init();
480 	omap_register_i2c_bus(1, 100, NULL, 0);
481 
482 	omap1_usb_init(&ams_delta_usb_config);
483 	omap1_set_camera_info(&ams_delta_camera_platform_data);
484 #ifdef CONFIG_LEDS_TRIGGERS
485 	led_trigger_register_simple("ams_delta_camera",
486 			&ams_delta_camera_led_trigger);
487 #endif
488 	gpio_led_register_device(-1, &leds_pdata);
489 	platform_add_devices(ams_delta_devices, ARRAY_SIZE(ams_delta_devices));
490 
491 	ams_delta_init_fiq();
492 
493 	omap_writew(omap_readw(ARM_RSTCT1) | 0x0004, ARM_RSTCT1);
494 
495 	omapfb_set_lcd_config(&ams_delta_lcd_config);
496 }
497 
498 static void modem_pm(struct uart_port *port, unsigned int state, unsigned old)
499 {
500 	struct modem_private_data *priv = port->private_data;
501 
502 	if (IS_ERR(priv->regulator))
503 		return;
504 
505 	if (state == old)
506 		return;
507 
508 	if (state == 0)
509 		regulator_enable(priv->regulator);
510 	else if (old == 0)
511 		regulator_disable(priv->regulator);
512 }
513 
514 static struct plat_serial8250_port ams_delta_modem_ports[] = {
515 	{
516 		.membase	= IOMEM(MODEM_VIRT),
517 		.mapbase	= MODEM_PHYS,
518 		.irq		= -EINVAL, /* changed later */
519 		.flags		= UPF_BOOT_AUTOCONF,
520 		.irqflags	= IRQF_TRIGGER_RISING,
521 		.iotype		= UPIO_MEM,
522 		.regshift	= 1,
523 		.uartclk	= BASE_BAUD * 16,
524 		.pm		= modem_pm,
525 		.private_data	= &modem_priv,
526 	},
527 	{ },
528 };
529 
530 static struct platform_device ams_delta_modem_device = {
531 	.name	= "serial8250",
532 	.id	= PLAT8250_DEV_PLATFORM1,
533 	.dev		= {
534 		.platform_data = ams_delta_modem_ports,
535 	},
536 };
537 
538 static int __init late_init(void)
539 {
540 	int err;
541 
542 	if (!machine_is_ams_delta())
543 		return -ENODEV;
544 
545 	err = gpio_request_array(latch_gpios, ARRAY_SIZE(latch_gpios));
546 	if (err) {
547 		pr_err("Couldn't take over latch1/latch2 GPIO pins\n");
548 		return err;
549 	}
550 
551 	platform_add_devices(late_devices, ARRAY_SIZE(late_devices));
552 
553 	err = platform_device_register(&modem_nreset_device);
554 	if (err) {
555 		pr_err("Couldn't register the modem regulator device\n");
556 		return err;
557 	}
558 
559 	omap_cfg_reg(M14_1510_GPIO2);
560 	ams_delta_modem_ports[0].irq =
561 			gpio_to_irq(AMS_DELTA_GPIO_PIN_MODEM_IRQ);
562 
563 	err = gpio_request(AMS_DELTA_GPIO_PIN_MODEM_IRQ, "modem");
564 	if (err) {
565 		pr_err("Couldn't request gpio pin for modem\n");
566 		return err;
567 	}
568 	gpio_direction_input(AMS_DELTA_GPIO_PIN_MODEM_IRQ);
569 
570 	/* Initialize the modem_nreset regulator consumer before use */
571 	modem_priv.regulator = ERR_PTR(-ENODEV);
572 
573 	ams_delta_latch2_write(AMS_DELTA_LATCH2_MODEM_CODEC,
574 			AMS_DELTA_LATCH2_MODEM_CODEC);
575 
576 	err = platform_device_register(&ams_delta_modem_device);
577 	if (err)
578 		goto gpio_free;
579 
580 	/*
581 	 * Once the modem device is registered, the modem_nreset
582 	 * regulator can be requested on behalf of that device.
583 	 */
584 	modem_priv.regulator = regulator_get(&ams_delta_modem_device.dev,
585 			"RESET#");
586 	if (IS_ERR(modem_priv.regulator)) {
587 		err = PTR_ERR(modem_priv.regulator);
588 		goto unregister;
589 	}
590 	return 0;
591 
592 unregister:
593 	platform_device_unregister(&ams_delta_modem_device);
594 gpio_free:
595 	gpio_free(AMS_DELTA_GPIO_PIN_MODEM_IRQ);
596 	return err;
597 }
598 
599 static void __init ams_delta_init_late(void)
600 {
601 	omap1_init_late();
602 	late_init();
603 }
604 
605 static void __init ams_delta_map_io(void)
606 {
607 	omap15xx_map_io();
608 	iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc));
609 }
610 
611 MACHINE_START(AMS_DELTA, "Amstrad E3 (Delta)")
612 	/* Maintainer: Jonathan McDowell <noodles@earth.li> */
613 	.atag_offset	= 0x100,
614 	.map_io		= ams_delta_map_io,
615 	.init_early	= omap1_init_early,
616 	.reserve	= omap_reserve,
617 	.init_irq	= omap1_init_irq,
618 	.init_machine	= ams_delta_init,
619 	.init_late	= ams_delta_init_late,
620 	.timer		= &omap1_timer,
621 	.restart	= omap1_restart,
622 MACHINE_END
623