summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-s3c24xx/mach-h1940.c
blob: 7ed78619217c6adeb6c6ceeed7469be9e526cecd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
/*
 * Copyright (c) 2003-2005 Simtec Electronics
 *   Ben Dooks <ben@simtec.co.uk>
 *
 * http://www.handhelds.org/projects/h1940.html
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
*/

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/memblock.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/serial_core.h>
#include <linux/serial_s3c.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
#include <linux/pwm.h>
#include <linux/pwm_backlight.h>
#include <linux/i2c.h>
#include <linux/leds.h>
#include <linux/pda_power.h>
#include <linux/s3c_adc_battery.h>
#include <linux/delay.h>

#include <video/platform_lcd.h>

#include <linux/mmc/host.h>
#include <linux/export.h>

#include <asm/irq.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>

#include <linux/platform_data/i2c-s3c2410.h>
#include <linux/platform_data/mmc-s3cmci.h>
#include <linux/platform_data/touchscreen-s3c2410.h>
#include <linux/platform_data/usb-s3c2410_udc.h>

#include <sound/uda1380.h>

#include <mach/fb.h>
#include <mach/hardware.h>
#include <mach/regs-clock.h>
#include <mach/regs-gpio.h>
#include <mach/regs-lcd.h>
#include <mach/gpio-samsung.h>

#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/gpio-cfg.h>
#include <plat/pm.h>
#include <plat/samsung-time.h>

#include "common.h"
#include "h1940.h"

#define H1940_LATCH		((void __force __iomem *)0xF8000000)

#define H1940_PA_LATCH		S3C2410_CS2

#define H1940_LATCH_BIT(x)	(1 << ((x) + 16 - S3C_GPIO_END))

#define S3C24XX_PLL_MDIV_SHIFT         (12)
#define S3C24XX_PLL_PDIV_SHIFT         (4)
#define S3C24XX_PLL_SDIV_SHIFT         (0)

static struct map_desc h1940_iodesc[] __initdata = {
	[0] = {
		.virtual	= (unsigned long)H1940_LATCH,
		.pfn		= __phys_to_pfn(H1940_PA_LATCH),
		.length		= SZ_16K,
		.type		= MT_DEVICE
	},
};

#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE

static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
	[0] = {
		.hwport	     = 0,
		.flags	     = 0,
		.ucon	     = 0x3c5,
		.ulcon	     = 0x03,
		.ufcon	     = 0x51,
	},
	[1] = {
		.hwport	     = 1,
		.flags	     = 0,
		.ucon	     = 0x245,
		.ulcon	     = 0x03,
		.ufcon	     = 0x00,
	},
	/* IR port */
	[2] = {
		.hwport	     = 2,
		.flags	     = 0,
		.uart_flags  = UPF_CONS_FLOW,
		.ucon	     = 0x3c5,
		.ulcon	     = 0x43,
		.ufcon	     = 0x51,
	}
};

/* Board control latch control */

static unsigned int latch_state;

static void h1940_latch_control(unsigned int clear, unsigned int set)
{
	unsigned long flags;

	local_irq_save(flags);

	latch_state &= ~clear;
	latch_state |= set;

	__raw_writel(latch_state, H1940_LATCH);

	local_irq_restore(flags);
}

static inline int h1940_gpiolib_to_latch(int offset)
{
	return 1 << (offset + 16);
}

static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
					unsigned offset, int value)
{
	int latch_bit = h1940_gpiolib_to_latch(offset);

	h1940_latch_control(value ? 0 : latch_bit,
		value ? latch_bit : 0);
}

static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
					unsigned offset, int value)
{
	h1940_gpiolib_latch_set(chip, offset, value);
	return 0;
}

static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
					unsigned offset)
{
	return (latch_state >> (offset + 16)) & 1;
}

static struct gpio_chip h1940_latch_gpiochip = {
	.base			= H1940_LATCH_GPIO(0),
	.owner			= THIS_MODULE,
	.label			= "H1940_LATCH",
	.ngpio			= 16,
	.direction_output	= h1940_gpiolib_latch_output,
	.set			= h1940_gpiolib_latch_set,
	.get			= h1940_gpiolib_latch_get,
};

static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
	.vbus_pin		= S3C2410_GPG(5),
	.vbus_pin_inverted	= 1,
	.pullup_pin		= H1940_LATCH_USB_DP,
};

static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
		.delay = 10000,
		.presc = 49,
		.oversampling_shift = 2,
		.cfg_gpio = s3c24xx_ts_cfg_gpio,
};

/**
 * Set lcd on or off
 **/
static struct s3c2410fb_display h1940_lcd __initdata = {
	.lcdcon5=	S3C2410_LCDCON5_FRM565 | \
			S3C2410_LCDCON5_INVVLINE | \
			S3C2410_LCDCON5_HWSWP,

	.type =		S3C2410_LCDCON1_TFT,
	.width =	240,
	.height =	320,
	.pixclock =	260000,
	.xres =		240,
	.yres =		320,
	.bpp =		16,
	.left_margin =	8,
	.right_margin =	20,
	.hsync_len =	4,
	.upper_margin =	8,
	.lower_margin = 7,
	.vsync_len =	1,
};

static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
	.displays = &h1940_lcd,
	.num_displays = 1,
	.default_display = 0,

	.lpcsel =	0x02,
	.gpccon =	0xaa940659,
	.gpccon_mask =	0xffffc0f0,
	.gpcup =	0x0000ffff,
	.gpcup_mask =	0xffffffff,
	.gpdcon =	0xaa84aaa0,
	.gpdcon_mask =	0xffffffff,
	.gpdup =	0x0000faff,
	.gpdup_mask =	0xffffffff,
};

static int power_supply_init(struct device *dev)
{
	return gpio_request(S3C2410_GPF(2), "cable plugged");
}

static int h1940_is_ac_online(void)
{
	return !gpio_get_value(S3C2410_GPF(2));
}

static void power_supply_exit(struct device *dev)
{
	gpio_free(S3C2410_GPF(2));
}

static char *h1940_supplicants[] = {
	"main-battery",
	"backup-battery",
};

static struct pda_power_pdata power_supply_info = {
	.init			= power_supply_init,
	.is_ac_online		= h1940_is_ac_online,
	.exit			= power_supply_exit,
	.supplied_to		= h1940_supplicants,
	.num_supplicants	= ARRAY_SIZE(h1940_supplicants),
};

static struct resource power_supply_resources[] = {
	[0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
			| IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE),
};

static struct platform_device power_supply = {
	.name		= "pda-power",
	.id		= -1,
	.dev		= {
				.platform_data =
					&power_supply_info,
	},
	.resource	= power_supply_resources,
	.num_resources	= ARRAY_SIZE(power_supply_resources),
};

static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
	{ .volt = 4070, .cur = 162, .level = 100},
	{ .volt = 4040, .cur = 165, .level = 95},
	{ .volt = 4016, .cur = 164, .level = 90},
	{ .volt = 3996, .cur = 166, .level = 85},
	{ .volt = 3971, .cur = 168, .level = 80},
	{ .volt = 3951, .cur = 168, .level = 75},
	{ .volt = 3931, .cur = 170, .level = 70},
	{ .volt = 3903, .cur = 172, .level = 65},
	{ .volt = 3886, .cur = 172, .level = 60},
	{ .volt = 3858, .cur = 176, .level = 55},
	{ .volt = 3842, .cur = 176, .level = 50},
	{ .volt = 3818, .cur = 176, .level = 45},
	{ .volt = 3789, .cur = 180, .level = 40},
	{ .volt = 3769, .cur = 180, .level = 35},
	{ .volt = 3749, .cur = 184, .level = 30},
	{ .volt = 3732, .cur = 184, .level = 25},
	{ .volt = 3716, .cur = 184, .level = 20},
	{ .volt = 3708, .cur = 184, .level = 15},
	{ .volt = 3716, .cur = 96, .level = 10},
	{ .volt = 3700, .cur = 96, .level = 5},
	{ .volt = 3684, .cur = 96, .level = 0},
};

static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
	{ .volt = 4130, .cur = 0, .level = 100},
	{ .volt = 3982, .cur = 0, .level = 50},
	{ .volt = 3854, .cur = 0, .level = 10},
	{ .volt = 3841, .cur = 0, .level = 0},
};

static int h1940_bat_init(void)
{
	int ret;

	ret = gpio_request(H1940_LATCH_SM803_ENABLE, "h1940-charger-enable");
	if (ret)
		return ret;
	gpio_direction_output(H1940_LATCH_SM803_ENABLE, 0);

	return 0;

}

static void h1940_bat_exit(void)
{
	gpio_free(H1940_LATCH_SM803_ENABLE);
}

static void h1940_enable_charger(void)
{
	gpio_set_value(H1940_LATCH_SM803_ENABLE, 1);
}

static void h1940_disable_charger(void)
{
	gpio_set_value(H1940_LATCH_SM803_ENABLE, 0);
}

static struct s3c_adc_bat_pdata h1940_bat_cfg = {
	.init = h1940_bat_init,
	.exit = h1940_bat_exit,
	.enable_charger = h1940_enable_charger,
	.disable_charger = h1940_disable_charger,
	.gpio_charge_finished = S3C2410_GPF(3),
	.gpio_inverted = 1,
	.lut_noac = bat_lut_noac,
	.lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
	.lut_acin = bat_lut_acin,
	.lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
	.volt_channel = 0,
	.current_channel = 1,
	.volt_mult = 4056,
	.current_mult = 1893,
	.internal_impedance = 200,
	.backup_volt_channel = 3,
	/* TODO Check backup volt multiplier */
	.backup_volt_mult = 4056,
	.backup_volt_min = 0,
	.backup_volt_max = 4149288
};

static struct platform_device h1940_battery = {
	.name             = "s3c-adc-battery",
	.id               = -1,
	.dev = {
		.parent = &s3c_device_adc.dev,
		.platform_data = &h1940_bat_cfg,
	},
};

static DEFINE_SPINLOCK(h1940_blink_spin);

int h1940_led_blink_set(struct gpio_desc *desc, int state,
	unsigned long *delay_on, unsigned long *delay_off)
{
	int blink_gpio, check_gpio1, check_gpio2;
	int gpio = desc ? desc_to_gpio(desc) : -EINVAL;

	switch (gpio) {
	case H1940_LATCH_LED_GREEN:
		blink_gpio = S3C2410_GPA(7);
		check_gpio1 = S3C2410_GPA(1);
		check_gpio2 = S3C2410_GPA(3);
		break;
	case H1940_LATCH_LED_RED:
		blink_gpio = S3C2410_GPA(1);
		check_gpio1 = S3C2410_GPA(7);
		check_gpio2 = S3C2410_GPA(3);
		break;
	default:
		blink_gpio = S3C2410_GPA(3);
		check_gpio1 = S3C2410_GPA(1);
		check_gpio2 = S3C2410_GPA(7);
		break;
	}

	if (delay_on && delay_off && !*delay_on && !*delay_off)
		*delay_on = *delay_off = 500;

	spin_lock(&h1940_blink_spin);

	switch (state) {
	case GPIO_LED_NO_BLINK_LOW:
	case GPIO_LED_NO_BLINK_HIGH:
		if (!gpio_get_value(check_gpio1) &&
		    !gpio_get_value(check_gpio2))
			gpio_set_value(H1940_LATCH_LED_FLASH, 0);
		gpio_set_value(blink_gpio, 0);
		if (gpio_is_valid(gpio))
			gpio_set_value(gpio, state);
		break;
	case GPIO_LED_BLINK:
		if (gpio_is_valid(gpio))
			gpio_set_value(gpio, 0);
		gpio_set_value(H1940_LATCH_LED_FLASH, 1);
		gpio_set_value(blink_gpio, 1);
		break;
	}

	spin_unlock(&h1940_blink_spin);

	return 0;
}
EXPORT_SYMBOL(h1940_led_blink_set);

static struct gpio_led h1940_leds_desc[] = {
	{
		.name			= "Green",
		.default_trigger	= "main-battery-full",
		.gpio			= H1940_LATCH_LED_GREEN,
		.retain_state_suspended	= 1,
	},
	{
		.name			= "Red",
		.default_trigger
			= "main-battery-charging-blink-full-solid",
		.gpio			= H1940_LATCH_LED_RED,
		.retain_state_suspended	= 1,
	},
};

static struct gpio_led_platform_data h1940_leds_pdata = {
	.num_leds	= ARRAY_SIZE(h1940_leds_desc),
	.leds		= h1940_leds_desc,
	.gpio_blink_set	= h1940_led_blink_set,
};

static struct platform_device h1940_device_leds = {
	.name	= "leds-gpio",
	.id	= -1,
	.dev	= {
			.platform_data = &h1940_leds_pdata,
	},
};

static struct platform_device h1940_device_bluetooth = {
	.name             = "h1940-bt",
	.id               = -1,
};

static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
{
	switch (power_mode) {
	case MMC_POWER_OFF:
		gpio_set_value(H1940_LATCH_SD_POWER, 0);
		break;
	case MMC_POWER_UP:
	case MMC_POWER_ON:
		gpio_set_value(H1940_LATCH_SD_POWER, 1);
		break;
	default:
		break;
	}
}

static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
	.gpio_detect   = S3C2410_GPF(5),
	.gpio_wprotect = S3C2410_GPH(8),
	.set_power     = h1940_set_mmc_power,
	.ocr_avail     = MMC_VDD_32_33,
};

static struct pwm_lookup h1940_pwm_lookup[] = {
	PWM_LOOKUP("samsung-pwm", 0, "pwm-backlight", NULL, 36296,
		   PWM_POLARITY_NORMAL),
};

static int h1940_backlight_init(struct device *dev)
{
	gpio_request(S3C2410_GPB(0), "Backlight");

	gpio_direction_output(S3C2410_GPB(0), 0);
	s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
	s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
	gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);

	return 0;
}

static int h1940_backlight_notify(struct device *dev, int brightness)
{
	if (!brightness) {
		gpio_direction_output(S3C2410_GPB(0), 1);
		gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
	} else {
		gpio_direction_output(S3C2410_GPB(0), 0);
		s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
		s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
		gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
	}
	return brightness;
}

static void h1940_backlight_exit(struct device *dev)
{
	gpio_direction_output(S3C2410_GPB(0), 1);
	gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
}


static struct platform_pwm_backlight_data backlight_data = {
	.max_brightness = 100,
	.dft_brightness = 50,
	.enable_gpio    = -1,
	.init           = h1940_backlight_init,
	.notify		= h1940_backlight_notify,
	.exit           = h1940_backlight_exit,
};

static struct platform_device h1940_backlight = {
	.name = "pwm-backlight",
	.dev  = {
		.parent = &samsung_device_pwm.dev,
		.platform_data = &backlight_data,
	},
	.id   = -1,
};

static void h1940_lcd_power_set(struct plat_lcd_data *pd,
					unsigned int power)
{
	int value, retries = 100;

	if (!power) {
		gpio_set_value(S3C2410_GPC(0), 0);
		/* wait for 3ac */
		do {
			value = gpio_get_value(S3C2410_GPC(6));
		} while (value && retries--);

		gpio_set_value(H1940_LATCH_LCD_P2, 0);
		gpio_set_value(H1940_LATCH_LCD_P3, 0);
		gpio_set_value(H1940_LATCH_LCD_P4, 0);

		gpio_direction_output(S3C2410_GPC(1), 0);
		gpio_direction_output(S3C2410_GPC(4), 0);

		gpio_set_value(H1940_LATCH_LCD_P1, 0);
		gpio_set_value(H1940_LATCH_LCD_P0, 0);

		gpio_set_value(S3C2410_GPC(5), 0);

	} else {
		gpio_set_value(H1940_LATCH_LCD_P0, 1);
		gpio_set_value(H1940_LATCH_LCD_P1, 1);

		gpio_direction_input(S3C2410_GPC(1));
		gpio_direction_input(S3C2410_GPC(4));
		mdelay(10);
		s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
		s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));

		gpio_set_value(S3C2410_GPC(5), 1);
		gpio_set_value(S3C2410_GPC(0), 1);

		gpio_set_value(H1940_LATCH_LCD_P3, 1);
		gpio_set_value(H1940_LATCH_LCD_P2, 1);
		gpio_set_value(H1940_LATCH_LCD_P4, 1);
	}
}

static struct plat_lcd_data h1940_lcd_power_data = {
	.set_power      = h1940_lcd_power_set,
};

static struct platform_device h1940_lcd_powerdev = {
	.name                   = "platform-lcd",
	.dev.parent             = &s3c_device_lcd.dev,
	.dev.platform_data      = &h1940_lcd_power_data,
};

static struct uda1380_platform_data uda1380_info = {
	.gpio_power	= H1940_LATCH_UDA_POWER,
	.gpio_reset	= S3C2410_GPA(12),
	.dac_clk	= UDA1380_DAC_CLK_SYSCLK,
};

static struct i2c_board_info h1940_i2c_devices[] = {
	{
		I2C_BOARD_INFO("uda1380", 0x1a),
		.platform_data = &uda1380_info,
	},
};

#define DECLARE_BUTTON(p, k, n, w)	\
	{				\
		.gpio		= p,	\
		.code		= k,	\
		.desc		= n,	\
		.wakeup		= w,	\
		.active_low	= 1,	\
	}

static struct gpio_keys_button h1940_buttons[] = {
	DECLARE_BUTTON(S3C2410_GPF(0),       KEY_POWER,          "Power", 1),
	DECLARE_BUTTON(S3C2410_GPF(6),       KEY_ENTER,         "Select", 1),
	DECLARE_BUTTON(S3C2410_GPF(7),      KEY_RECORD,         "Record", 0),
	DECLARE_BUTTON(S3C2410_GPG(0),         KEY_F11,       "Calendar", 0),
	DECLARE_BUTTON(S3C2410_GPG(2),         KEY_F12,       "Contacts", 0),
	DECLARE_BUTTON(S3C2410_GPG(3),        KEY_MAIL,           "Mail", 0),
	DECLARE_BUTTON(S3C2410_GPG(6),        KEY_LEFT,     "Left_arrow", 0),
	DECLARE_BUTTON(S3C2410_GPG(7),    KEY_HOMEPAGE,           "Home", 0),
	DECLARE_BUTTON(S3C2410_GPG(8),       KEY_RIGHT,    "Right_arrow", 0),
	DECLARE_BUTTON(S3C2410_GPG(9),          KEY_UP,       "Up_arrow", 0),
	DECLARE_BUTTON(S3C2410_GPG(10),       KEY_DOWN,     "Down_arrow", 0),
};

static struct gpio_keys_platform_data h1940_buttons_data = {
	.buttons	= h1940_buttons,
	.nbuttons	= ARRAY_SIZE(h1940_buttons),
};

static struct platform_device h1940_dev_buttons = {
	.name		= "gpio-keys",
	.id		= -1,
	.dev		= {
		.platform_data  = &h1940_buttons_data,
	}
};

static struct platform_device *h1940_devices[] __initdata = {
	&h1940_dev_buttons,
	&s3c_device_ohci,
	&s3c_device_lcd,
	&s3c_device_wdt,
	&s3c_device_i2c0,
	&s3c_device_iis,
	&s3c_device_usbgadget,
	&h1940_device_leds,
	&h1940_device_bluetooth,
	&s3c_device_sdi,
	&s3c_device_rtc,
	&samsung_device_pwm,
	&h1940_backlight,
	&h1940_lcd_powerdev,
	&s3c_device_adc,
	&s3c_device_ts,
	&power_supply,
	&h1940_battery,
};

static void __init h1940_map_io(void)
{
	s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
	s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);

	/* setup PM */

#ifdef CONFIG_PM_H1940
	memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
#endif
	s3c_pm_init();

	/* Add latch gpio chip, set latch initial value */
	h1940_latch_control(0, 0);
	WARN_ON(gpiochip_add_data(&h1940_latch_gpiochip, NULL));
}

static void __init h1940_init_time(void)
{
	s3c2410_init_clocks(12000000);
	samsung_timer_init();
}

/* H1940 and RX3715 need to reserve this for suspend */
static void __init h1940_reserve(void)
{
	memblock_reserve(0x30003000, 0x1000);
	memblock_reserve(0x30081000, 0x1000);
}

static void __init h1940_init(void)
{
	u32 tmp;

	s3c24xx_fb_set_platdata(&h1940_fb_info);
	s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
 	s3c24xx_udc_set_platdata(&h1940_udc_cfg);
	s3c24xx_ts_set_platdata(&h1940_ts_cfg);
	s3c_i2c0_set_platdata(NULL);

	/* Turn off suspend on both USB ports, and switch the
	 * selectable USB port to USB device mode. */

	s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
			      S3C2410_MISCCR_USBSUSPND0 |
			      S3C2410_MISCCR_USBSUSPND1, 0x0);

	tmp =   (0x78 << S3C24XX_PLL_MDIV_SHIFT)
	      | (0x02 << S3C24XX_PLL_PDIV_SHIFT)
	      | (0x03 << S3C24XX_PLL_SDIV_SHIFT);
	writel(tmp, S3C2410_UPLLCON);

	gpio_request(S3C2410_GPC(0), "LCD power");
	gpio_request(S3C2410_GPC(1), "LCD power");
	gpio_request(S3C2410_GPC(4), "LCD power");
	gpio_request(S3C2410_GPC(5), "LCD power");
	gpio_request(S3C2410_GPC(6), "LCD power");
	gpio_request(H1940_LATCH_LCD_P0, "LCD power");
	gpio_request(H1940_LATCH_LCD_P1, "LCD power");
	gpio_request(H1940_LATCH_LCD_P2, "LCD power");
	gpio_request(H1940_LATCH_LCD_P3, "LCD power");
	gpio_request(H1940_LATCH_LCD_P4, "LCD power");
	gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
	gpio_direction_output(S3C2410_GPC(0), 0);
	gpio_direction_output(S3C2410_GPC(1), 0);
	gpio_direction_output(S3C2410_GPC(4), 0);
	gpio_direction_output(S3C2410_GPC(5), 0);
	gpio_direction_input(S3C2410_GPC(6));
	gpio_direction_output(H1940_LATCH_LCD_P0, 0);
	gpio_direction_output(H1940_LATCH_LCD_P1, 0);
	gpio_direction_output(H1940_LATCH_LCD_P2, 0);
	gpio_direction_output(H1940_LATCH_LCD_P3, 0);
	gpio_direction_output(H1940_LATCH_LCD_P4, 0);
	gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);

	gpio_request(H1940_LATCH_SD_POWER, "SD power");
	gpio_direction_output(H1940_LATCH_SD_POWER, 0);

	pwm_add_table(h1940_pwm_lookup, ARRAY_SIZE(h1940_pwm_lookup));
	platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));

	gpio_request(S3C2410_GPA(1), "Red LED blink");
	gpio_request(S3C2410_GPA(3), "Blue LED blink");
	gpio_request(S3C2410_GPA(7), "Green LED blink");
	gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
	gpio_direction_output(S3C2410_GPA(1), 0);
	gpio_direction_output(S3C2410_GPA(3), 0);
	gpio_direction_output(S3C2410_GPA(7), 0);
	gpio_direction_output(H1940_LATCH_LED_FLASH, 0);

	i2c_register_board_info(0, h1940_i2c_devices,
		ARRAY_SIZE(h1940_i2c_devices));
}

MACHINE_START(H1940, "IPAQ-H1940")
	/* Maintainer: Ben Dooks <ben-linux@fluff.org> */
	.atag_offset	= 0x100,
	.map_io		= h1940_map_io,
	.reserve	= h1940_reserve,
	.init_irq	= s3c2410_init_irq,
	.init_machine	= h1940_init,
	.init_time	= h1940_init_time,
MACHINE_END
OpenPOWER on IntegriCloud