1 /* linux/arch/arm/mach-s3c2440/mach-rx1950.c
2  *
3  * Copyright (c) 2006-2009 Victor Chukhantsev, Denis Grigoriev,
4  * Copyright (c) 2007-2010 Vasily Khoruzhick
5  *
6  * based on smdk2440 written by Ben Dooks
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License version 2 as
10  * published by the Free Software Foundation.
11  *
12 */
13 
14 #include <linux/kernel.h>
15 #include <linux/types.h>
16 #include <linux/interrupt.h>
17 #include <linux/list.h>
18 #include <linux/memblock.h>
19 #include <linux/delay.h>
20 #include <linux/timer.h>
21 #include <linux/init.h>
22 #include <linux/gpio.h>
23 #include <linux/platform_device.h>
24 #include <linux/serial_core.h>
25 #include <linux/input.h>
26 #include <linux/gpio_keys.h>
27 #include <linux/device.h>
28 #include <linux/pda_power.h>
29 #include <linux/pwm_backlight.h>
30 #include <linux/pwm.h>
31 #include <linux/s3c_adc_battery.h>
32 #include <linux/leds.h>
33 #include <linux/i2c.h>
34 
35 #include <linux/mtd/mtd.h>
36 #include <linux/mtd/partitions.h>
37 
38 #include <linux/mmc/host.h>
39 
40 #include <asm/mach/arch.h>
41 #include <asm/mach/map.h>
42 #include <asm/mach-types.h>
43 
44 #include <mach/regs-gpio.h>
45 #include <mach/regs-gpioj.h>
46 #include <mach/regs-lcd.h>
47 #include <mach/h1940.h>
48 #include <mach/fb.h>
49 
50 #include <plat/clock.h>
51 #include <plat/regs-serial.h>
52 #include <plat/regs-iic.h>
53 #include <plat/mci.h>
54 #include <plat/udc.h>
55 #include <plat/nand.h>
56 #include <plat/iic.h>
57 #include <plat/devs.h>
58 #include <plat/cpu.h>
59 #include <plat/pm.h>
60 #include <plat/irq.h>
61 #include <plat/ts.h>
62 
63 #include <sound/uda1380.h>
64 
65 #include "common.h"
66 
67 #define LCD_PWM_PERIOD 192960
68 #define LCD_PWM_DUTY 127353
69 
70 static struct map_desc rx1950_iodesc[] __initdata = {
71 };
72 
73 static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
74 	[0] = {
75 	       .hwport = 0,
76 	       .flags = 0,
77 	       .ucon = 0x3c5,
78 	       .ulcon = 0x03,
79 	       .ufcon = 0x51,
80 		.clk_sel = S3C2410_UCON_CLKSEL3,
81 	},
82 	[1] = {
83 	       .hwport = 1,
84 	       .flags = 0,
85 	       .ucon = 0x3c5,
86 	       .ulcon = 0x03,
87 	       .ufcon = 0x51,
88 		.clk_sel = S3C2410_UCON_CLKSEL3,
89 	},
90 	/* IR port */
91 	[2] = {
92 	       .hwport = 2,
93 	       .flags = 0,
94 	       .ucon = 0x3c5,
95 	       .ulcon = 0x43,
96 	       .ufcon = 0xf1,
97 		.clk_sel = S3C2410_UCON_CLKSEL3,
98 	},
99 };
100 
101 static struct s3c2410fb_display rx1950_display = {
102 	.type = S3C2410_LCDCON1_TFT,
103 	.width = 240,
104 	.height = 320,
105 	.xres = 240,
106 	.yres = 320,
107 	.bpp = 16,
108 
109 	.pixclock = 260000,
110 	.left_margin = 10,
111 	.right_margin = 20,
112 	.hsync_len = 10,
113 	.upper_margin = 2,
114 	.lower_margin = 2,
115 	.vsync_len = 2,
116 
117 	.lcdcon5 = S3C2410_LCDCON5_FRM565 |
118 			   S3C2410_LCDCON5_INVVCLK |
119 			   S3C2410_LCDCON5_INVVLINE |
120 			   S3C2410_LCDCON5_INVVFRAME |
121 			   S3C2410_LCDCON5_HWSWP |
122 			   (0x02 << 13) |
123 			   (0x02 << 15),
124 
125 };
126 
power_supply_init(struct device * dev)127 static int power_supply_init(struct device *dev)
128 {
129 	return gpio_request(S3C2410_GPF(2), "cable plugged");
130 }
131 
rx1950_is_ac_online(void)132 static int rx1950_is_ac_online(void)
133 {
134 	return !gpio_get_value(S3C2410_GPF(2));
135 }
136 
power_supply_exit(struct device * dev)137 static void power_supply_exit(struct device *dev)
138 {
139 	gpio_free(S3C2410_GPF(2));
140 }
141 
142 static char *rx1950_supplicants[] = {
143 	"main-battery"
144 };
145 
146 static struct pda_power_pdata power_supply_info = {
147 	.init			= power_supply_init,
148 	.is_ac_online		= rx1950_is_ac_online,
149 	.exit			= power_supply_exit,
150 	.supplied_to		= rx1950_supplicants,
151 	.num_supplicants	= ARRAY_SIZE(rx1950_supplicants),
152 };
153 
154 static struct resource power_supply_resources[] = {
155 	[0] = {
156 			.name	= "ac",
157 			.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE |
158 					  IORESOURCE_IRQ_HIGHEDGE,
159 			.start	= IRQ_EINT2,
160 			.end	= IRQ_EINT2,
161 	},
162 };
163 
164 static struct platform_device power_supply = {
165 	.name			= "pda-power",
166 	.id			= -1,
167 	.dev			= {
168 					.platform_data =
169 						&power_supply_info,
170 	},
171 	.resource		= power_supply_resources,
172 	.num_resources		= ARRAY_SIZE(power_supply_resources),
173 };
174 
175 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
176 	{ .volt = 4100, .cur = 156, .level = 100},
177 	{ .volt = 4050, .cur = 156, .level = 95},
178 	{ .volt = 4025, .cur = 141, .level = 90},
179 	{ .volt = 3995, .cur = 144, .level = 85},
180 	{ .volt = 3957, .cur = 162, .level = 80},
181 	{ .volt = 3931, .cur = 147, .level = 75},
182 	{ .volt = 3902, .cur = 147, .level = 70},
183 	{ .volt = 3863, .cur = 153, .level = 65},
184 	{ .volt = 3838, .cur = 150, .level = 60},
185 	{ .volt = 3800, .cur = 153, .level = 55},
186 	{ .volt = 3765, .cur = 153, .level = 50},
187 	{ .volt = 3748, .cur = 172, .level = 45},
188 	{ .volt = 3740, .cur = 153, .level = 40},
189 	{ .volt = 3714, .cur = 175, .level = 35},
190 	{ .volt = 3710, .cur = 156, .level = 30},
191 	{ .volt = 3963, .cur = 156, .level = 25},
192 	{ .volt = 3672, .cur = 178, .level = 20},
193 	{ .volt = 3651, .cur = 178, .level = 15},
194 	{ .volt = 3629, .cur = 178, .level = 10},
195 	{ .volt = 3612, .cur = 162, .level = 5},
196 	{ .volt = 3605, .cur = 162, .level = 0},
197 };
198 
199 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
200 	{ .volt = 4200, .cur = 0, .level = 100},
201 	{ .volt = 4190, .cur = 0, .level = 99},
202 	{ .volt = 4178, .cur = 0, .level = 95},
203 	{ .volt = 4110, .cur = 0, .level = 70},
204 	{ .volt = 4076, .cur = 0, .level = 65},
205 	{ .volt = 4046, .cur = 0, .level = 60},
206 	{ .volt = 4021, .cur = 0, .level = 55},
207 	{ .volt = 3999, .cur = 0, .level = 50},
208 	{ .volt = 3982, .cur = 0, .level = 45},
209 	{ .volt = 3965, .cur = 0, .level = 40},
210 	{ .volt = 3957, .cur = 0, .level = 35},
211 	{ .volt = 3948, .cur = 0, .level = 30},
212 	{ .volt = 3936, .cur = 0, .level = 25},
213 	{ .volt = 3927, .cur = 0, .level = 20},
214 	{ .volt = 3906, .cur = 0, .level = 15},
215 	{ .volt = 3880, .cur = 0, .level = 10},
216 	{ .volt = 3829, .cur = 0, .level = 5},
217 	{ .volt = 3820, .cur = 0, .level = 0},
218 };
219 
rx1950_bat_init(void)220 int rx1950_bat_init(void)
221 {
222 	int ret;
223 
224 	ret = gpio_request(S3C2410_GPJ(2), "rx1950-charger-enable-1");
225 	if (ret)
226 		goto err_gpio1;
227 	ret = gpio_request(S3C2410_GPJ(3), "rx1950-charger-enable-2");
228 	if (ret)
229 		goto err_gpio2;
230 
231 	return 0;
232 
233 err_gpio2:
234 	gpio_free(S3C2410_GPJ(2));
235 err_gpio1:
236 	return ret;
237 }
238 
rx1950_bat_exit(void)239 void rx1950_bat_exit(void)
240 {
241 	gpio_free(S3C2410_GPJ(2));
242 	gpio_free(S3C2410_GPJ(3));
243 }
244 
rx1950_enable_charger(void)245 void rx1950_enable_charger(void)
246 {
247 	gpio_direction_output(S3C2410_GPJ(2), 1);
248 	gpio_direction_output(S3C2410_GPJ(3), 1);
249 }
250 
rx1950_disable_charger(void)251 void rx1950_disable_charger(void)
252 {
253 	gpio_direction_output(S3C2410_GPJ(2), 0);
254 	gpio_direction_output(S3C2410_GPJ(3), 0);
255 }
256 
257 DEFINE_SPINLOCK(rx1950_blink_spin);
258 
rx1950_led_blink_set(unsigned gpio,int state,unsigned long * delay_on,unsigned long * delay_off)259 static int rx1950_led_blink_set(unsigned gpio, int state,
260 	unsigned long *delay_on, unsigned long *delay_off)
261 {
262 	int blink_gpio, check_gpio;
263 
264 	switch (gpio) {
265 	case S3C2410_GPA(6):
266 		blink_gpio = S3C2410_GPA(4);
267 		check_gpio = S3C2410_GPA(3);
268 		break;
269 	case S3C2410_GPA(7):
270 		blink_gpio = S3C2410_GPA(3);
271 		check_gpio = S3C2410_GPA(4);
272 		break;
273 	default:
274 		return -EINVAL;
275 		break;
276 	}
277 
278 	if (delay_on && delay_off && !*delay_on && !*delay_off)
279 		*delay_on = *delay_off = 500;
280 
281 	spin_lock(&rx1950_blink_spin);
282 
283 	switch (state) {
284 	case GPIO_LED_NO_BLINK_LOW:
285 	case GPIO_LED_NO_BLINK_HIGH:
286 		if (!gpio_get_value(check_gpio))
287 			gpio_set_value(S3C2410_GPJ(6), 0);
288 		gpio_set_value(blink_gpio, 0);
289 		gpio_set_value(gpio, state);
290 		break;
291 	case GPIO_LED_BLINK:
292 		gpio_set_value(gpio, 0);
293 		gpio_set_value(S3C2410_GPJ(6), 1);
294 		gpio_set_value(blink_gpio, 1);
295 		break;
296 	}
297 
298 	spin_unlock(&rx1950_blink_spin);
299 
300 	return 0;
301 }
302 
303 static struct gpio_led rx1950_leds_desc[] = {
304 	{
305 		.name			= "Green",
306 		.default_trigger	= "main-battery-full",
307 		.gpio			= S3C2410_GPA(6),
308 		.retain_state_suspended	= 1,
309 	},
310 	{
311 		.name			= "Red",
312 		.default_trigger
313 			= "main-battery-charging-blink-full-solid",
314 		.gpio			= S3C2410_GPA(7),
315 		.retain_state_suspended	= 1,
316 	},
317 	{
318 		.name			= "Blue",
319 		.default_trigger	= "rx1950-acx-mem",
320 		.gpio			= S3C2410_GPA(11),
321 		.retain_state_suspended	= 1,
322 	},
323 };
324 
325 static struct gpio_led_platform_data rx1950_leds_pdata = {
326 	.num_leds	= ARRAY_SIZE(rx1950_leds_desc),
327 	.leds		= rx1950_leds_desc,
328 	.gpio_blink_set	= rx1950_led_blink_set,
329 };
330 
331 static struct platform_device rx1950_leds = {
332 	.name	= "leds-gpio",
333 	.id		= -1,
334 	.dev	= {
335 				.platform_data = &rx1950_leds_pdata,
336 	},
337 };
338 
339 static struct s3c_adc_bat_pdata rx1950_bat_cfg = {
340 	.init = rx1950_bat_init,
341 	.exit = rx1950_bat_exit,
342 	.enable_charger = rx1950_enable_charger,
343 	.disable_charger = rx1950_disable_charger,
344 	.gpio_charge_finished = S3C2410_GPF(3),
345 	.lut_noac = bat_lut_noac,
346 	.lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
347 	.lut_acin = bat_lut_acin,
348 	.lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
349 	.volt_channel = 0,
350 	.current_channel = 1,
351 	.volt_mult = 4235,
352 	.current_mult = 2900,
353 	.internal_impedance = 200,
354 };
355 
356 static struct platform_device rx1950_battery = {
357 	.name             = "s3c-adc-battery",
358 	.id               = -1,
359 	.dev = {
360 		.parent = &s3c_device_adc.dev,
361 		.platform_data = &rx1950_bat_cfg,
362 	},
363 };
364 
365 static struct s3c2410fb_mach_info rx1950_lcd_cfg = {
366 	.displays = &rx1950_display,
367 	.num_displays = 1,
368 	.default_display = 0,
369 
370 	.lpcsel = 0x02,
371 	.gpccon = 0xaa9556a9,
372 	.gpccon_mask = 0xffc003fc,
373 	.gpcup = 0x0000ffff,
374 	.gpcup_mask = 0xffffffff,
375 
376 	.gpdcon = 0xaa90aaa1,
377 	.gpdcon_mask = 0xffc0fff0,
378 	.gpdup = 0x0000fcfd,
379 	.gpdup_mask = 0xffffffff,
380 
381 };
382 
383 static struct pwm_device *lcd_pwm;
384 
rx1950_lcd_power(int enable)385 void rx1950_lcd_power(int enable)
386 {
387 	int i;
388 	static int enabled;
389 	if (enabled == enable)
390 		return;
391 	if (!enable) {
392 
393 		/* GPC11-GPC15->OUTPUT */
394 		for (i = 11; i < 16; i++)
395 			gpio_direction_output(S3C2410_GPC(i), 1);
396 
397 		/* Wait a bit here... */
398 		mdelay(100);
399 
400 		/* GPD2-GPD7->OUTPUT */
401 		/* GPD11-GPD15->OUTPUT */
402 		/* GPD2-GPD7->1, GPD11-GPD15->1 */
403 		for (i = 2; i < 8; i++)
404 			gpio_direction_output(S3C2410_GPD(i), 1);
405 		for (i = 11; i < 16; i++)
406 			gpio_direction_output(S3C2410_GPD(i), 1);
407 
408 		/* Wait a bit here...*/
409 		mdelay(100);
410 
411 		/* GPB0->OUTPUT, GPB0->0 */
412 		gpio_direction_output(S3C2410_GPB(0), 0);
413 
414 		/* GPC1-GPC4->OUTPUT, GPC1-4->0 */
415 		for (i = 1; i < 5; i++)
416 			gpio_direction_output(S3C2410_GPC(i), 0);
417 
418 		/* GPC15-GPC11->0 */
419 		for (i = 11; i < 16; i++)
420 			gpio_direction_output(S3C2410_GPC(i), 0);
421 
422 		/* GPD15-GPD11->0, GPD2->GPD7->0 */
423 		for (i = 11; i < 16; i++)
424 			gpio_direction_output(S3C2410_GPD(i), 0);
425 
426 		for (i = 2; i < 8; i++)
427 			gpio_direction_output(S3C2410_GPD(i), 0);
428 
429 		/* GPC6->0, GPC7->0, GPC5->0 */
430 		gpio_direction_output(S3C2410_GPC(6), 0);
431 		gpio_direction_output(S3C2410_GPC(7), 0);
432 		gpio_direction_output(S3C2410_GPC(5), 0);
433 
434 		/* GPB1->OUTPUT, GPB1->0 */
435 		gpio_direction_output(S3C2410_GPB(1), 0);
436 		pwm_config(lcd_pwm, 0, LCD_PWM_PERIOD);
437 		pwm_disable(lcd_pwm);
438 
439 		/* GPC0->0, GPC10->0 */
440 		gpio_direction_output(S3C2410_GPC(0), 0);
441 		gpio_direction_output(S3C2410_GPC(10), 0);
442 	} else {
443 		pwm_config(lcd_pwm, LCD_PWM_DUTY, LCD_PWM_PERIOD);
444 		pwm_enable(lcd_pwm);
445 
446 		gpio_direction_output(S3C2410_GPC(0), 1);
447 		gpio_direction_output(S3C2410_GPC(5), 1);
448 
449 		s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPB1_TOUT1);
450 		gpio_direction_output(S3C2410_GPC(7), 1);
451 
452 		for (i = 1; i < 5; i++)
453 			s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
454 
455 		for (i = 11; i < 16; i++)
456 			s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
457 
458 		for (i = 2; i < 8; i++)
459 			s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
460 
461 		for (i = 11; i < 16; i++)
462 			s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
463 
464 		gpio_direction_output(S3C2410_GPC(10), 1);
465 		gpio_direction_output(S3C2410_GPC(6), 1);
466 	}
467 	enabled = enable;
468 }
469 
rx1950_bl_power(int enable)470 static void rx1950_bl_power(int enable)
471 {
472 	static int enabled;
473 	if (enabled == enable)
474 		return;
475 	if (!enable) {
476 			gpio_direction_output(S3C2410_GPB(0), 0);
477 	} else {
478 			/* LED driver need a "push" to power on */
479 			gpio_direction_output(S3C2410_GPB(0), 1);
480 			/* Warm up backlight for one period of PWM.
481 			 * Without this trick its almost impossible to
482 			 * enable backlight with low brightness value
483 			 */
484 			ndelay(48000);
485 			s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
486 	}
487 	enabled = enable;
488 }
489 
rx1950_backlight_init(struct device * dev)490 static int rx1950_backlight_init(struct device *dev)
491 {
492 	WARN_ON(gpio_request(S3C2410_GPB(0), "Backlight"));
493 	lcd_pwm = pwm_request(1, "RX1950 LCD");
494 	if (IS_ERR(lcd_pwm)) {
495 		dev_err(dev, "Unable to request PWM for LCD power!\n");
496 		return PTR_ERR(lcd_pwm);
497 	}
498 
499 	rx1950_lcd_power(1);
500 	rx1950_bl_power(1);
501 
502 	return 0;
503 }
504 
rx1950_backlight_exit(struct device * dev)505 static void rx1950_backlight_exit(struct device *dev)
506 {
507 	rx1950_bl_power(0);
508 	rx1950_lcd_power(0);
509 
510 	pwm_free(lcd_pwm);
511 	gpio_free(S3C2410_GPB(0));
512 }
513 
514 
rx1950_backlight_notify(struct device * dev,int brightness)515 static int rx1950_backlight_notify(struct device *dev, int brightness)
516 {
517 	if (!brightness) {
518 		rx1950_bl_power(0);
519 		rx1950_lcd_power(0);
520 	} else {
521 		rx1950_lcd_power(1);
522 		rx1950_bl_power(1);
523 	}
524 	return brightness;
525 }
526 
527 static struct platform_pwm_backlight_data rx1950_backlight_data = {
528 	.pwm_id = 0,
529 	.max_brightness = 24,
530 	.dft_brightness = 4,
531 	.pwm_period_ns = 48000,
532 	.init = rx1950_backlight_init,
533 	.notify = rx1950_backlight_notify,
534 	.exit = rx1950_backlight_exit,
535 };
536 
537 static struct platform_device rx1950_backlight = {
538 	.name = "pwm-backlight",
539 	.dev = {
540 		.parent = &s3c_device_timer[0].dev,
541 		.platform_data = &rx1950_backlight_data,
542 	},
543 };
544 
rx1950_set_mmc_power(unsigned char power_mode,unsigned short vdd)545 static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd)
546 {
547 	switch (power_mode) {
548 	case MMC_POWER_OFF:
549 		gpio_direction_output(S3C2410_GPJ(1), 0);
550 		break;
551 	case MMC_POWER_UP:
552 	case MMC_POWER_ON:
553 		gpio_direction_output(S3C2410_GPJ(1), 1);
554 		break;
555 	default:
556 		break;
557 	}
558 }
559 
560 static struct s3c24xx_mci_pdata rx1950_mmc_cfg __initdata = {
561 	.gpio_detect = S3C2410_GPF(5),
562 	.gpio_wprotect = S3C2410_GPH(8),
563 	.set_power = rx1950_set_mmc_power,
564 	.ocr_avail = MMC_VDD_32_33,
565 };
566 
567 static struct mtd_partition rx1950_nand_part[] = {
568 	[0] = {
569 			.name = "Boot0",
570 			.offset = 0,
571 			.size = 0x4000,
572 			.mask_flags = MTD_WRITEABLE,
573 	},
574 	[1] = {
575 			.name = "Boot1",
576 			.offset = MTDPART_OFS_APPEND,
577 			.size = 0x40000,
578 			.mask_flags = MTD_WRITEABLE,
579 	},
580 	[2] = {
581 			.name = "Kernel",
582 			.offset = MTDPART_OFS_APPEND,
583 			.size = 0x300000,
584 			.mask_flags = 0,
585 	},
586 	[3] = {
587 			.name = "Filesystem",
588 			.offset = MTDPART_OFS_APPEND,
589 			.size = MTDPART_SIZ_FULL,
590 			.mask_flags = 0,
591 	},
592 };
593 
594 static struct s3c2410_nand_set rx1950_nand_sets[] = {
595 	[0] = {
596 			.name = "Internal",
597 			.nr_chips = 1,
598 			.nr_partitions = ARRAY_SIZE(rx1950_nand_part),
599 			.partitions = rx1950_nand_part,
600 	},
601 };
602 
603 static struct s3c2410_platform_nand rx1950_nand_info = {
604 	.tacls = 25,
605 	.twrph0 = 50,
606 	.twrph1 = 15,
607 	.nr_sets = ARRAY_SIZE(rx1950_nand_sets),
608 	.sets = rx1950_nand_sets,
609 };
610 
611 static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {
612 	.vbus_pin = S3C2410_GPG(5),
613 	.vbus_pin_inverted = 1,
614 	.pullup_pin = S3C2410_GPJ(5),
615 };
616 
617 static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {
618 	.delay = 10000,
619 	.presc = 49,
620 	.oversampling_shift = 3,
621 };
622 
623 static struct gpio_keys_button rx1950_gpio_keys_table[] = {
624 	{
625 		.code		= KEY_POWER,
626 		.gpio		= S3C2410_GPF(0),
627 		.active_low	= 1,
628 		.desc		= "Power button",
629 		.wakeup		= 1,
630 	},
631 	{
632 		.code		= KEY_F5,
633 		.gpio		= S3C2410_GPF(7),
634 		.active_low	= 1,
635 		.desc		= "Record button",
636 	},
637 	{
638 		.code		= KEY_F1,
639 		.gpio		= S3C2410_GPG(0),
640 		.active_low	= 1,
641 		.desc		= "Calendar button",
642 	},
643 	{
644 		.code		= KEY_F2,
645 		.gpio		= S3C2410_GPG(2),
646 		.active_low	= 1,
647 		.desc		= "Contacts button",
648 	},
649 	{
650 		.code		= KEY_F3,
651 		.gpio		= S3C2410_GPG(3),
652 		.active_low	= 1,
653 		.desc		= "Mail button",
654 	},
655 	{
656 		.code		= KEY_F4,
657 		.gpio		= S3C2410_GPG(7),
658 		.active_low	= 1,
659 		.desc		= "WLAN button",
660 	},
661 	{
662 		.code		= KEY_LEFT,
663 		.gpio		= S3C2410_GPG(10),
664 		.active_low	= 1,
665 		.desc		= "Left button",
666 	},
667 	{
668 		.code		= KEY_RIGHT,
669 		.gpio		= S3C2410_GPG(11),
670 		.active_low	= 1,
671 		.desc		= "Right button",
672 	},
673 	{
674 		.code		= KEY_UP,
675 		.gpio		= S3C2410_GPG(4),
676 		.active_low	= 1,
677 		.desc		= "Up button",
678 	},
679 	{
680 		.code		= KEY_DOWN,
681 		.gpio		= S3C2410_GPG(6),
682 		.active_low	= 1,
683 		.desc		= "Down button",
684 	},
685 	{
686 		.code		= KEY_ENTER,
687 		.gpio		= S3C2410_GPG(9),
688 		.active_low	= 1,
689 		.desc		= "Ok button"
690 	},
691 };
692 
693 static struct gpio_keys_platform_data rx1950_gpio_keys_data = {
694 	.buttons = rx1950_gpio_keys_table,
695 	.nbuttons = ARRAY_SIZE(rx1950_gpio_keys_table),
696 };
697 
698 static struct platform_device rx1950_device_gpiokeys = {
699 	.name = "gpio-keys",
700 	.dev.platform_data = &rx1950_gpio_keys_data,
701 };
702 
703 static struct uda1380_platform_data uda1380_info = {
704 	.gpio_power	= S3C2410_GPJ(0),
705 	.gpio_reset	= S3C2410_GPD(0),
706 	.dac_clk	= UDA1380_DAC_CLK_SYSCLK,
707 };
708 
709 static struct i2c_board_info rx1950_i2c_devices[] = {
710 	{
711 		I2C_BOARD_INFO("uda1380", 0x1a),
712 		.platform_data = &uda1380_info,
713 	},
714 };
715 
716 static struct platform_device *rx1950_devices[] __initdata = {
717 	&s3c_device_lcd,
718 	&s3c_device_wdt,
719 	&s3c_device_i2c0,
720 	&s3c_device_iis,
721 	&samsung_asoc_dma,
722 	&s3c_device_usbgadget,
723 	&s3c_device_rtc,
724 	&s3c_device_nand,
725 	&s3c_device_sdi,
726 	&s3c_device_adc,
727 	&s3c_device_ts,
728 	&s3c_device_timer[0],
729 	&s3c_device_timer[1],
730 	&rx1950_backlight,
731 	&rx1950_device_gpiokeys,
732 	&power_supply,
733 	&rx1950_battery,
734 	&rx1950_leds,
735 };
736 
737 static struct clk *rx1950_clocks[] __initdata = {
738 	&s3c24xx_clkout0,
739 	&s3c24xx_clkout1,
740 };
741 
rx1950_map_io(void)742 static void __init rx1950_map_io(void)
743 {
744 	s3c24xx_clkout0.parent  = &clk_h;
745 	s3c24xx_clkout1.parent  = &clk_f;
746 
747 	s3c24xx_register_clocks(rx1950_clocks, ARRAY_SIZE(rx1950_clocks));
748 
749 	s3c24xx_init_io(rx1950_iodesc, ARRAY_SIZE(rx1950_iodesc));
750 	s3c24xx_init_clocks(16934000);
751 	s3c24xx_init_uarts(rx1950_uartcfgs, ARRAY_SIZE(rx1950_uartcfgs));
752 
753 	/* setup PM */
754 
755 #ifdef CONFIG_PM_H1940
756 	memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 8);
757 #endif
758 
759 	s3c_pm_init();
760 }
761 
rx1950_init_machine(void)762 static void __init rx1950_init_machine(void)
763 {
764 	int i;
765 
766 	s3c24xx_fb_set_platdata(&rx1950_lcd_cfg);
767 	s3c24xx_udc_set_platdata(&rx1950_udc_cfg);
768 	s3c24xx_ts_set_platdata(&rx1950_ts_cfg);
769 	s3c24xx_mci_set_platdata(&rx1950_mmc_cfg);
770 	s3c_i2c0_set_platdata(NULL);
771 	s3c_nand_set_platdata(&rx1950_nand_info);
772 
773 	/* Turn off suspend on both USB ports, and switch the
774 	 * selectable USB port to USB device mode. */
775 	s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
776 						S3C2410_MISCCR_USBSUSPND0 |
777 						S3C2410_MISCCR_USBSUSPND1, 0x0);
778 
779 	/* mmc power is disabled by default */
780 	WARN_ON(gpio_request(S3C2410_GPJ(1), "MMC power"));
781 	gpio_direction_output(S3C2410_GPJ(1), 0);
782 
783 	for (i = 0; i < 8; i++)
784 		WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
785 
786 	for (i = 10; i < 16; i++)
787 		WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
788 
789 	for (i = 2; i < 8; i++)
790 		WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
791 
792 	for (i = 11; i < 16; i++)
793 		WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
794 
795 	WARN_ON(gpio_request(S3C2410_GPB(1), "LCD power"));
796 
797 	WARN_ON(gpio_request(S3C2410_GPA(3), "Red blink"));
798 	WARN_ON(gpio_request(S3C2410_GPA(4), "Green blink"));
799 	WARN_ON(gpio_request(S3C2410_GPJ(6), "LED blink"));
800 	gpio_direction_output(S3C2410_GPA(3), 0);
801 	gpio_direction_output(S3C2410_GPA(4), 0);
802 	gpio_direction_output(S3C2410_GPJ(6), 0);
803 
804 	platform_add_devices(rx1950_devices, ARRAY_SIZE(rx1950_devices));
805 
806 	i2c_register_board_info(0, rx1950_i2c_devices,
807 		ARRAY_SIZE(rx1950_i2c_devices));
808 }
809 
810 /* H1940 and RX3715 need to reserve this for suspend */
rx1950_reserve(void)811 static void __init rx1950_reserve(void)
812 {
813 	memblock_reserve(0x30003000, 0x1000);
814 	memblock_reserve(0x30081000, 0x1000);
815 }
816 
817 MACHINE_START(RX1950, "HP iPAQ RX1950")
818     /* Maintainers: Vasily Khoruzhick */
819 	.atag_offset = 0x100,
820 	.map_io = rx1950_map_io,
821 	.reserve	= rx1950_reserve,
822 	.init_irq = s3c24xx_init_irq,
823 	.init_machine = rx1950_init_machine,
824 	.timer = &s3c24xx_timer,
825 	.restart	= s3c244x_restart,
826 MACHINE_END
827