summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-pxa/mioa701.c
blob: f70583fee59f8b61e59a1022f07b36c26fd3210c (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
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
/*
 * Handles the Mitac Mio A701 Board
 *
 * Copyright (C) 2008 Robert Jarzmik
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/syscore_ops.h>
#include <linux/input.h>
#include <linux/delay.h>
#include <linux/gpio_keys.h>
#include <linux/pwm_backlight.h>
#include <linux/rtc.h>
#include <linux/leds.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/pda_power.h>
#include <linux/power_supply.h>
#include <linux/wm97xx.h>
#include <linux/mtd/physmap.h>
#include <linux/usb/gpio_vbus.h>
#include <linux/reboot.h>
#include <linux/regulator/max1586.h>
#include <linux/slab.h>
#include <linux/i2c/pxa-i2c.h>

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

#include <mach/pxa27x.h>
#include <mach/regs-rtc.h>
#include <linux/platform_data/keypad-pxa27x.h>
#include <linux/platform_data/video-pxafb.h>
#include <linux/platform_data/mmc-pxamci.h>
#include <mach/udc.h>
#include <mach/pxa27x-udc.h>
#include <linux/platform_data/camera-pxa.h>
#include <mach/audio.h>
#include <mach/smemc.h>
#include <media/soc_camera.h>

#include <mach/mioa701.h>

#include "generic.h"
#include "devices.h"

static unsigned long mioa701_pin_config[] = {
	/* Mio global */
	MIO_CFG_OUT(GPIO9_CHARGE_EN, AF0, DRIVE_LOW),
	MIO_CFG_OUT(GPIO18_POWEROFF, AF0, DRIVE_LOW),
	MFP_CFG_OUT(GPIO3, AF0, DRIVE_HIGH),
	MFP_CFG_OUT(GPIO4, AF0, DRIVE_HIGH),
	MIO_CFG_IN(GPIO80_MAYBE_CHARGE_VDROP, AF0),

	/* Backlight PWM 0 */
	GPIO16_PWM0_OUT,

	/* MMC */
	GPIO32_MMC_CLK,
	GPIO92_MMC_DAT_0,
	GPIO109_MMC_DAT_1,
	GPIO110_MMC_DAT_2,
	GPIO111_MMC_DAT_3,
	GPIO112_MMC_CMD,
	MIO_CFG_IN(GPIO78_SDIO_RO, AF0),
	MIO_CFG_IN(GPIO15_SDIO_INSERT, AF0),
	MIO_CFG_OUT(GPIO91_SDIO_EN, AF0, DRIVE_LOW),

	/* USB */
	MIO_CFG_IN(GPIO13_nUSB_DETECT, AF0),
	MIO_CFG_OUT(GPIO22_USB_ENABLE, AF0, DRIVE_LOW),

	/* LCD */
	GPIOxx_LCD_TFT_16BPP,

	/* QCI */
	GPIO12_CIF_DD_7,
	GPIO17_CIF_DD_6,
	GPIO50_CIF_DD_3,
	GPIO51_CIF_DD_2,
	GPIO52_CIF_DD_4,
	GPIO53_CIF_MCLK,
	GPIO54_CIF_PCLK,
	GPIO55_CIF_DD_1,
	GPIO81_CIF_DD_0,
	GPIO82_CIF_DD_5,
	GPIO84_CIF_FV,
	GPIO85_CIF_LV,
	MIO_CFG_OUT(GPIO56_MT9M111_nOE, AF0, DRIVE_LOW),

	/* Bluetooth */
	MIO_CFG_IN(GPIO14_BT_nACTIVITY, AF0),
	GPIO44_BTUART_CTS,
	GPIO42_BTUART_RXD,
	GPIO45_BTUART_RTS,
	GPIO43_BTUART_TXD,
	MIO_CFG_OUT(GPIO83_BT_ON, AF0, DRIVE_LOW),
	MIO_CFG_OUT(GPIO77_BT_UNKNOWN1, AF0, DRIVE_HIGH),
	MIO_CFG_OUT(GPIO86_BT_MAYBE_nRESET, AF0, DRIVE_HIGH),

	/* GPS */
	MIO_CFG_OUT(GPIO23_GPS_UNKNOWN1, AF0, DRIVE_LOW),
	MIO_CFG_OUT(GPIO26_GPS_ON, AF0, DRIVE_LOW),
	MIO_CFG_OUT(GPIO27_GPS_RESET, AF0, DRIVE_LOW),
	MIO_CFG_OUT(GPIO106_GPS_UNKNOWN2, AF0, DRIVE_LOW),
	MIO_CFG_OUT(GPIO107_GPS_UNKNOWN3, AF0, DRIVE_LOW),
	GPIO46_STUART_RXD,
	GPIO47_STUART_TXD,

	/* GSM */
	MIO_CFG_OUT(GPIO24_GSM_MOD_RESET_CMD, AF0, DRIVE_LOW),
	MIO_CFG_OUT(GPIO88_GSM_nMOD_ON_CMD, AF0, DRIVE_HIGH),
	MIO_CFG_OUT(GPIO90_GSM_nMOD_OFF_CMD, AF0, DRIVE_HIGH),
	MIO_CFG_OUT(GPIO114_GSM_nMOD_DTE_UART_STATE, AF0, DRIVE_HIGH),
	MIO_CFG_IN(GPIO25_GSM_MOD_ON_STATE, AF0),
	MIO_CFG_IN(GPIO113_GSM_EVENT, AF0) | WAKEUP_ON_EDGE_BOTH,
	GPIO34_FFUART_RXD,
	GPIO35_FFUART_CTS,
	GPIO36_FFUART_DCD,
	GPIO37_FFUART_DSR,
	GPIO39_FFUART_TXD,
	GPIO40_FFUART_DTR,
	GPIO41_FFUART_RTS,

	/* Sound */
	GPIO28_AC97_BITCLK,
	GPIO29_AC97_SDATA_IN_0,
	GPIO30_AC97_SDATA_OUT,
	GPIO31_AC97_SYNC,
	GPIO89_AC97_SYSCLK,
	MIO_CFG_IN(GPIO12_HPJACK_INSERT, AF0),

	/* Leds */
	MIO_CFG_OUT(GPIO10_LED_nCharging, AF0, DRIVE_HIGH),
	MIO_CFG_OUT(GPIO97_LED_nBlue, AF0, DRIVE_HIGH),
	MIO_CFG_OUT(GPIO98_LED_nOrange, AF0, DRIVE_HIGH),
	MIO_CFG_OUT(GPIO82_LED_nVibra, AF0, DRIVE_HIGH),
	MIO_CFG_OUT(GPIO115_LED_nKeyboard, AF0, DRIVE_HIGH),

	/* Keyboard */
	MIO_CFG_IN(GPIO0_KEY_POWER, AF0) | WAKEUP_ON_EDGE_BOTH,
	MIO_CFG_IN(GPIO93_KEY_VOLUME_UP, AF0),
	MIO_CFG_IN(GPIO94_KEY_VOLUME_DOWN, AF0),
	GPIO100_KP_MKIN_0,
	GPIO101_KP_MKIN_1,
	GPIO102_KP_MKIN_2,
	GPIO103_KP_MKOUT_0,
	GPIO104_KP_MKOUT_1,
	GPIO105_KP_MKOUT_2,

	/* I2C */
	GPIO117_I2C_SCL,
	GPIO118_I2C_SDA,

	/* Unknown */
	MFP_CFG_IN(GPIO20, AF0),
	MFP_CFG_IN(GPIO21, AF0),
	MFP_CFG_IN(GPIO33, AF0),
	MFP_CFG_OUT(GPIO49, AF0, DRIVE_HIGH),
	MFP_CFG_OUT(GPIO57, AF0, DRIVE_HIGH),
	MFP_CFG_IN(GPIO96, AF0),
	MFP_CFG_OUT(GPIO116, AF0, DRIVE_HIGH),
};

/* LCD Screen and Backlight */
static struct platform_pwm_backlight_data mioa701_backlight_data = {
	.pwm_id		= 0,
	.max_brightness	= 100,
	.dft_brightness	= 50,
	.pwm_period_ns	= 4000 * 1024,	/* Fl = 250kHz */
	.enable_gpio	= -1,
};

/*
 * LTM0305A776C LCD panel timings
 *
 * see:
 *  - the LTM0305A776C datasheet,
 *  - and the PXA27x Programmers' manual
 */
static struct pxafb_mode_info mioa701_ltm0305a776c = {
	.pixclock		= 220000,	/* CLK=4.545 MHz */
	.xres			= 240,
	.yres			= 320,
	.bpp			= 16,
	.hsync_len		= 4,
	.vsync_len		= 2,
	.left_margin		= 6,
	.right_margin		= 4,
	.upper_margin		= 5,
	.lower_margin		= 3,
};

static void mioa701_lcd_power(int on, struct fb_var_screeninfo *si)
{
	gpio_set_value(GPIO87_LCD_POWER, on);
}

static struct pxafb_mach_info mioa701_pxafb_info = {
	.modes			= &mioa701_ltm0305a776c,
	.num_modes		= 1,
	.lcd_conn		= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
	.pxafb_lcd_power	= mioa701_lcd_power,
};

/*
 * Keyboard configuration
 */
static const unsigned int mioa701_matrix_keys[] = {
	KEY(0, 0, KEY_UP),
	KEY(0, 1, KEY_RIGHT),
	KEY(0, 2, KEY_MEDIA),
	KEY(1, 0, KEY_DOWN),
	KEY(1, 1, KEY_ENTER),
	KEY(1, 2, KEY_CONNECT),	/* GPS key */
	KEY(2, 0, KEY_LEFT),
	KEY(2, 1, KEY_PHONE),	/* Phone Green key */
	KEY(2, 2, KEY_CAMERA)	/* Camera key */
};

static struct matrix_keymap_data mioa701_matrix_keymap_data = {
	.keymap			= mioa701_matrix_keys,
	.keymap_size		= ARRAY_SIZE(mioa701_matrix_keys),
};

static struct pxa27x_keypad_platform_data mioa701_keypad_info = {
	.matrix_key_rows = 3,
	.matrix_key_cols = 3,
	.matrix_keymap_data = &mioa701_matrix_keymap_data,
};

/*
 * GPIO Key Configuration
 */
#define MIO_KEY(key, _gpio, _desc, _wakeup) \
	{ .code = (key), .gpio = (_gpio), .active_low = 0, \
	.desc = (_desc), .type = EV_KEY, .wakeup = (_wakeup) }
static struct gpio_keys_button mioa701_button_table[] = {
	MIO_KEY(KEY_EXIT, GPIO0_KEY_POWER, "Power button", 1),
	MIO_KEY(KEY_VOLUMEUP, GPIO93_KEY_VOLUME_UP, "Volume up", 0),
	MIO_KEY(KEY_VOLUMEDOWN, GPIO94_KEY_VOLUME_DOWN, "Volume down", 0),
	MIO_KEY(KEY_HP, GPIO12_HPJACK_INSERT, "HP jack detect", 0)
};

static struct gpio_keys_platform_data mioa701_gpio_keys_data = {
	.buttons  = mioa701_button_table,
	.nbuttons = ARRAY_SIZE(mioa701_button_table),
};

/*
 * Leds and vibrator
 */
#define ONE_LED(_gpio, _name) \
{ .gpio = (_gpio), .name = (_name), .active_low = true }
static struct gpio_led gpio_leds[] = {
	ONE_LED(GPIO10_LED_nCharging, "mioa701:charging"),
	ONE_LED(GPIO97_LED_nBlue, "mioa701:blue"),
	ONE_LED(GPIO98_LED_nOrange, "mioa701:orange"),
	ONE_LED(GPIO82_LED_nVibra, "mioa701:vibra"),
	ONE_LED(GPIO115_LED_nKeyboard, "mioa701:keyboard")
};

static struct gpio_led_platform_data gpio_led_info = {
	.leds = gpio_leds,
	.num_leds = ARRAY_SIZE(gpio_leds),
};

/*
 * GSM Sagem XS200 chip
 *
 * GSM handling was purged from kernel. For history, this is the way to go :
 *   - init : GPIO24_GSM_MOD_RESET_CMD = 0, GPIO114_GSM_nMOD_DTE_UART_STATE = 1
 *            GPIO88_GSM_nMOD_ON_CMD = 1, GPIO90_GSM_nMOD_OFF_CMD = 1
 *   - reset : GPIO24_GSM_MOD_RESET_CMD = 1, msleep(100),
 *             GPIO24_GSM_MOD_RESET_CMD = 0
 *   - turn on  : GPIO88_GSM_nMOD_ON_CMD = 0, msleep(1000),
 *                GPIO88_GSM_nMOD_ON_CMD = 1
 *   - turn off : GPIO90_GSM_nMOD_OFF_CMD = 0, msleep(1000),
 *                GPIO90_GSM_nMOD_OFF_CMD = 1
 */
static int is_gsm_on(void)
{
	int is_on;

	is_on = !!gpio_get_value(GPIO25_GSM_MOD_ON_STATE);
	return is_on;
}

irqreturn_t gsm_on_irq(int irq, void *p)
{
	printk(KERN_DEBUG "Mioa701: GSM status changed to %s\n",
	       is_gsm_on() ? "on" : "off");
	return IRQ_HANDLED;
}

static struct gpio gsm_gpios[] = {
	{ GPIO25_GSM_MOD_ON_STATE, GPIOF_IN, "GSM state" },
	{ GPIO113_GSM_EVENT, GPIOF_IN, "GSM event" },
};

static int __init gsm_init(void)
{
	int rc;

	rc = gpio_request_array(ARRAY_AND_SIZE(gsm_gpios));
	if (rc)
		goto err_gpio;
	rc = request_irq(gpio_to_irq(GPIO25_GSM_MOD_ON_STATE), gsm_on_irq,
			 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
			 "GSM XS200 Power Irq", NULL);
	if (rc)
		goto err_irq;

	gpio_set_wake(GPIO113_GSM_EVENT, 1);
	return 0;

err_irq:
	printk(KERN_ERR "Mioa701: Can't request GSM_ON irq\n");
	gpio_free_array(ARRAY_AND_SIZE(gsm_gpios));
err_gpio:
	printk(KERN_ERR "Mioa701: gsm not available\n");
	return rc;
}

static void gsm_exit(void)
{
	free_irq(gpio_to_irq(GPIO25_GSM_MOD_ON_STATE), NULL);
	gpio_free_array(ARRAY_AND_SIZE(gsm_gpios));
}

/*
 * Bluetooth BRF6150 chip
 *
 * BT handling was purged from kernel. For history, this is the way to go :
 * - turn on  : GPIO83_BT_ON = 1
 * - turn off : GPIO83_BT_ON = 0
 */

/*
 * GPS Sirf Star III chip
 *
 * GPS handling was purged from kernel. For history, this is the way to go :
 * - init : GPIO23_GPS_UNKNOWN1 = 1, GPIO26_GPS_ON = 0, GPIO27_GPS_RESET = 0
 *          GPIO106_GPS_UNKNOWN2 = 0, GPIO107_GPS_UNKNOWN3 = 0
 * - turn on  : GPIO27_GPS_RESET = 1, GPIO26_GPS_ON = 1
 * - turn off : GPIO26_GPS_ON = 0, GPIO27_GPS_RESET = 0
 */

/*
 * USB UDC
 */
static int is_usb_connected(void)
{
	return !gpio_get_value(GPIO13_nUSB_DETECT);
}

static struct pxa2xx_udc_mach_info mioa701_udc_info = {
	.udc_is_connected = is_usb_connected,
	.gpio_pullup	  = GPIO22_USB_ENABLE,
};

struct gpio_vbus_mach_info gpio_vbus_data = {
	.gpio_vbus = GPIO13_nUSB_DETECT,
	.gpio_vbus_inverted = 1,
	.gpio_pullup = -1,
};

/*
 * SDIO/MMC Card controller
 */
/**
 * The card detect interrupt isn't debounced so we delay it by 250ms
 * to give the card a chance to fully insert/eject.
 */
static struct pxamci_platform_data mioa701_mci_info = {
	.detect_delay_ms	= 250,
	.ocr_mask 		= MMC_VDD_32_33 | MMC_VDD_33_34,
	.gpio_card_detect	= GPIO15_SDIO_INSERT,
	.gpio_card_ro		= GPIO78_SDIO_RO,
	.gpio_power		= GPIO91_SDIO_EN,
};

/* FlashRAM */
static struct resource docg3_resource = {
	.start = PXA_CS0_PHYS,
	.end   = PXA_CS0_PHYS + SZ_8K - 1,
	.flags = IORESOURCE_MEM,
};

static struct platform_device docg3 = {
	.name	       = "docg3",
	.id	       = -1,
	.resource      = &docg3_resource,
	.num_resources = 1,
	.dev = {
		.platform_data = NULL,
	},
};

/*
 * Suspend/Resume bootstrap management
 *
 * MIO A701 reboot sequence is highly ROM dependent. From the one dissassembled,
 * this sequence is as follows :
 *   - disables interrupts
 *   - initialize SDRAM (self refresh RAM into active RAM)
 *   - initialize GPIOs (depends on value at 0xa020b020)
 *   - initialize coprossessors
 *   - if edge detect on PWR_SCL(GPIO3), then proceed to cold start
 *   - or if value at 0xa020b000 not equal to 0x0f0f0f0f, proceed to cold start
 *   - else do a resume, ie. jump to addr 0xa0100000
 */
#define RESUME_ENABLE_ADDR	0xa020b000
#define RESUME_ENABLE_VAL	0x0f0f0f0f
#define RESUME_BT_ADDR		0xa020b020
#define RESUME_UNKNOWN_ADDR	0xa020b024
#define RESUME_VECTOR_ADDR	0xa0100000
#define BOOTSTRAP_WORDS		mioa701_bootstrap_lg/4

static u32 *save_buffer;

static void install_bootstrap(void)
{
	int i;
	u32 *rom_bootstrap  = phys_to_virt(RESUME_VECTOR_ADDR);
	u32 *src = &mioa701_bootstrap;

	for (i = 0; i < BOOTSTRAP_WORDS; i++)
		rom_bootstrap[i] = src[i];
}


static int mioa701_sys_suspend(void)
{
	int i = 0, is_bt_on;
	u32 *mem_resume_vector	= phys_to_virt(RESUME_VECTOR_ADDR);
	u32 *mem_resume_enabler = phys_to_virt(RESUME_ENABLE_ADDR);
	u32 *mem_resume_bt	= phys_to_virt(RESUME_BT_ADDR);
	u32 *mem_resume_unknown	= phys_to_virt(RESUME_UNKNOWN_ADDR);

	/* Devices prepare suspend */
	is_bt_on = !!gpio_get_value(GPIO83_BT_ON);
	pxa2xx_mfp_set_lpm(GPIO83_BT_ON,
			   is_bt_on ? MFP_LPM_DRIVE_HIGH : MFP_LPM_DRIVE_LOW);

	for (i = 0; i < BOOTSTRAP_WORDS; i++)
		save_buffer[i] = mem_resume_vector[i];
	save_buffer[i++] = *mem_resume_enabler;
	save_buffer[i++] = *mem_resume_bt;
	save_buffer[i++] = *mem_resume_unknown;

	*mem_resume_enabler = RESUME_ENABLE_VAL;
	*mem_resume_bt	    = is_bt_on;

	install_bootstrap();
	return 0;
}

static void mioa701_sys_resume(void)
{
	int i = 0;
	u32 *mem_resume_vector	= phys_to_virt(RESUME_VECTOR_ADDR);
	u32 *mem_resume_enabler = phys_to_virt(RESUME_ENABLE_ADDR);
	u32 *mem_resume_bt	= phys_to_virt(RESUME_BT_ADDR);
	u32 *mem_resume_unknown	= phys_to_virt(RESUME_UNKNOWN_ADDR);

	for (i = 0; i < BOOTSTRAP_WORDS; i++)
		mem_resume_vector[i] = save_buffer[i];
	*mem_resume_enabler = save_buffer[i++];
	*mem_resume_bt	    = save_buffer[i++];
	*mem_resume_unknown = save_buffer[i++];
}

static struct syscore_ops mioa701_syscore_ops = {
	.suspend	= mioa701_sys_suspend,
	.resume		= mioa701_sys_resume,
};

static int __init bootstrap_init(void)
{
	int save_size = mioa701_bootstrap_lg + (sizeof(u32) * 3);

	register_syscore_ops(&mioa701_syscore_ops);

	save_buffer = kmalloc(save_size, GFP_KERNEL);
	if (!save_buffer)
		return -ENOMEM;
	printk(KERN_INFO "MioA701: allocated %d bytes for bootstrap\n",
	       save_size);
	return 0;
}

static void bootstrap_exit(void)
{
	kfree(save_buffer);
	unregister_syscore_ops(&mioa701_syscore_ops);

	printk(KERN_CRIT "Unregistering mioa701 suspend will hang next"
	       "resume !!!\n");
}

/*
 * Power Supply
 */
static char *supplicants[] = {
	"mioa701_battery"
};

static int is_ac_connected(void)
{
	return gpio_get_value(GPIO96_AC_DETECT);
}

static void mioa701_set_charge(int flags)
{
	gpio_set_value(GPIO9_CHARGE_EN, (flags == PDA_POWER_CHARGE_USB));
}

static struct pda_power_pdata power_pdata = {
	.is_ac_online	= is_ac_connected,
	.is_usb_online	= is_usb_connected,
	.set_charge = mioa701_set_charge,
	.supplied_to = supplicants,
	.num_supplicants = ARRAY_SIZE(supplicants),
};

static struct resource power_resources[] = {
	[0] = {
		.name	= "ac",
		.start	= PXA_GPIO_TO_IRQ(GPIO96_AC_DETECT),
		.end	= PXA_GPIO_TO_IRQ(GPIO96_AC_DETECT),
		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
		IORESOURCE_IRQ_LOWEDGE,
	},
	[1] = {
		.name	= "usb",
		.start	= PXA_GPIO_TO_IRQ(GPIO13_nUSB_DETECT),
		.end	= PXA_GPIO_TO_IRQ(GPIO13_nUSB_DETECT),
		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
		IORESOURCE_IRQ_LOWEDGE,
	},
};

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

static struct wm97xx_batt_pdata mioa701_battery_data = {
	.batt_aux	= WM97XX_AUX_ID1,
	.temp_aux	= -1,
	.charge_gpio	= -1,
	.min_voltage	= 0xc00,
	.max_voltage	= 0xfc0,
	.batt_tech	= POWER_SUPPLY_TECHNOLOGY_LION,
	.batt_div	= 1,
	.batt_mult	= 1,
	.batt_name	= "mioa701_battery",
};

static struct wm97xx_pdata mioa701_wm97xx_pdata = {
	.batt_pdata	= &mioa701_battery_data,
};

/*
 * Voltage regulation
 */
static struct regulator_consumer_supply max1586_consumers[] = {
	REGULATOR_SUPPLY("vcc_core", NULL),
};

static struct regulator_init_data max1586_v3_info = {
	.constraints = {
		.name = "vcc_core range",
		.min_uV = 1000000,
		.max_uV = 1705000,
		.always_on = 1,
		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
	},
	.num_consumer_supplies = ARRAY_SIZE(max1586_consumers),
	.consumer_supplies = max1586_consumers,
};

static struct max1586_subdev_data max1586_subdevs[] = {
	{ .name = "vcc_core", .id = MAX1586_V3,
	  .platform_data = &max1586_v3_info },
};

static struct max1586_platform_data max1586_info = {
	.subdevs = max1586_subdevs,
	.num_subdevs = ARRAY_SIZE(max1586_subdevs),
	.v3_gain = MAX1586_GAIN_NO_R24, /* 700..1475 mV */
};

/*
 * Camera interface
 */
struct pxacamera_platform_data mioa701_pxacamera_platform_data = {
	.flags  = PXA_CAMERA_MASTER | PXA_CAMERA_DATAWIDTH_8 |
		PXA_CAMERA_PCLK_EN | PXA_CAMERA_MCLK_EN,
	.mclk_10khz = 5000,
};

static struct i2c_board_info __initdata mioa701_pi2c_devices[] = {
	{
		I2C_BOARD_INFO("max1586", 0x14),
		.platform_data = &max1586_info,
	},
};

/* Board I2C devices. */
static struct i2c_board_info mioa701_i2c_devices[] = {
	{
		I2C_BOARD_INFO("mt9m111", 0x5d),
	},
};

static struct soc_camera_link iclink = {
	.bus_id		= 0, /* Match id in pxa27x_device_camera in device.c */
	.board_info	= &mioa701_i2c_devices[0],
	.i2c_adapter_id	= 0,
};

struct i2c_pxa_platform_data i2c_pdata = {
	.fast_mode = 1,
};

static pxa2xx_audio_ops_t mioa701_ac97_info = {
	.reset_gpio = 95,
	.codec_pdata = { &mioa701_wm97xx_pdata, },
};

/*
 * Mio global
 */

/* Devices */
#define MIO_PARENT_DEV(var, strname, tparent, pdata)	\
static struct platform_device var = {			\
	.name		= strname,			\
	.id		= -1,				\
	.dev		= {				\
		.platform_data = pdata,			\
		.parent	= tparent,			\
	},						\
};
#define MIO_SIMPLE_DEV(var, strname, pdata)	\
	MIO_PARENT_DEV(var, strname, NULL, pdata)

MIO_SIMPLE_DEV(mioa701_gpio_keys, "gpio-keys",	    &mioa701_gpio_keys_data)
MIO_PARENT_DEV(mioa701_backlight, "pwm-backlight",  &pxa27x_device_pwm0.dev,
		&mioa701_backlight_data);
MIO_SIMPLE_DEV(mioa701_led,	  "leds-gpio",	    &gpio_led_info)
MIO_SIMPLE_DEV(pxa2xx_pcm,	  "pxa2xx-pcm",	    NULL)
MIO_SIMPLE_DEV(mioa701_sound,	  "mioa701-wm9713", NULL)
MIO_SIMPLE_DEV(mioa701_board,	  "mioa701-board",  NULL)
MIO_SIMPLE_DEV(gpio_vbus,	  "gpio-vbus",      &gpio_vbus_data);
MIO_SIMPLE_DEV(mioa701_camera,	  "soc-camera-pdrv",&iclink);

static struct platform_device *devices[] __initdata = {
	&mioa701_gpio_keys,
	&mioa701_backlight,
	&mioa701_led,
	&pxa2xx_pcm,
	&mioa701_sound,
	&power_dev,
	&docg3,
	&gpio_vbus,
	&mioa701_camera,
	&mioa701_board,
};

static void mioa701_machine_exit(void);

static void mioa701_poweroff(void)
{
	mioa701_machine_exit();
	pxa_restart(REBOOT_SOFT, NULL);
}

static void mioa701_restart(enum reboot_mode c, const char *cmd)
{
	mioa701_machine_exit();
	pxa_restart(REBOOT_SOFT, cmd);
}

static struct gpio global_gpios[] = {
	{ GPIO9_CHARGE_EN, GPIOF_OUT_INIT_HIGH, "Charger enable" },
	{ GPIO18_POWEROFF, GPIOF_OUT_INIT_LOW, "Power Off" },
	{ GPIO87_LCD_POWER, GPIOF_OUT_INIT_LOW, "LCD Power" },
	{ GPIO56_MT9M111_nOE, GPIOF_OUT_INIT_LOW, "Camera nOE" },
};

static void __init mioa701_machine_init(void)
{
	int rc;

	PSLR  = 0xff100000; /* SYSDEL=125ms, PWRDEL=125ms, PSLR_SL_ROD=1 */
	PCFR = PCFR_DC_EN | PCFR_GPR_EN | PCFR_OPDE;
	RTTR = 32768 - 1; /* Reset crazy WinCE value */
	UP2OCR = UP2OCR_HXOE;

	/*
	 * Set up the flash memory : DiskOnChip G3 on first static memory bank
	 */
	__raw_writel(0x7ff02dd8, MSC0);
	__raw_writel(0x0001c391, MCMEM0);
	__raw_writel(0x0001c391, MCATT0);
	__raw_writel(0x0001c391, MCIO0);


	pxa2xx_mfp_config(ARRAY_AND_SIZE(mioa701_pin_config));
	pxa_set_ffuart_info(NULL);
	pxa_set_btuart_info(NULL);
	pxa_set_stuart_info(NULL);
	rc = gpio_request_array(ARRAY_AND_SIZE(global_gpios));
	if (rc)
		pr_err("MioA701: Failed to request GPIOs: %d", rc);
	bootstrap_init();
	pxa_set_fb_info(NULL, &mioa701_pxafb_info);
	pxa_set_mci_info(&mioa701_mci_info);
	pxa_set_keypad_info(&mioa701_keypad_info);
	pxa_set_udc_info(&mioa701_udc_info);
	pxa_set_ac97_info(&mioa701_ac97_info);
	pm_power_off = mioa701_poweroff;
	platform_add_devices(devices, ARRAY_SIZE(devices));
	gsm_init();

	i2c_register_board_info(1, ARRAY_AND_SIZE(mioa701_pi2c_devices));
	pxa_set_i2c_info(&i2c_pdata);
	pxa27x_set_i2c_power_info(NULL);
	pxa_set_camera_info(&mioa701_pxacamera_platform_data);
}

static void mioa701_machine_exit(void)
{
	bootstrap_exit();
	gsm_exit();
}

MACHINE_START(MIOA701, "MIO A701")
	.atag_offset	= 0x100,
	.map_io		= &pxa27x_map_io,
	.nr_irqs	= PXA_NR_IRQS,
	.init_irq	= &pxa27x_init_irq,
	.handle_irq	= &pxa27x_handle_irq,
	.init_machine	= mioa701_machine_init,
	.init_time	= pxa_timer_init,
	.restart	= mioa701_restart,
MACHINE_END
OpenPOWER on IntegriCloud