aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-s3c2440/mach-gta02.c
blob: e8ac76bd17ed24dad9bd0963d1586c9613c736a1 (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
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
/*
 * linux/arch/arm/mach-s3c2442/mach-gta02.c
 *
 * S3C2442 Machine Support for Openmoko GTA02 / FreeRunner.
 *
 * Copyright (C) 2006-2009 by Openmoko, Inc.
 * Authors: Harald Welte <laforge@openmoko.org>
 *          Andy Green <andy@openmoko.org>
 *          Werner Almesberger <werner@openmoko.org>
 * All rights reserved.
 *
 * 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/types.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/workqueue.h>
#include <linux/platform_device.h>
#include <linux/serial_core.h>
#include <linux/spi/spi.h>
#include <linux/spi/spi_gpio.h>

#include <linux/mmc/host.h>

#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/io.h>

#include <linux/i2c.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/fixed.h>

#include <linux/mfd/pcf50633/core.h>
#include <linux/mfd/pcf50633/mbc.h>
#include <linux/mfd/pcf50633/adc.h>
#include <linux/mfd/pcf50633/gpio.h>
#include <linux/mfd/pcf50633/pmic.h>
#include <linux/mfd/pcf50633/backlight.h>

#include <linux/input.h>
#include <linux/gpio_keys.h>

#include <linux/leds.h>
#include <linux/leds_pwm.h>

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

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

#include <mach/regs-irq.h>
#include <mach/regs-gpio.h>
#include <mach/regs-gpioj.h>
#include <mach/fb.h>

#include <mach/spi.h>
#include <mach/spi-gpio.h>
#include <plat/usb-control.h>
#include <mach/regs-mem.h>
#include <mach/hardware.h>

#include <mach/ts.h>

#include <mach/gta02.h>

#include <plat/regs-serial.h>
#include <plat/nand.h>
#include <plat/devs.h>
#include <plat/cpu.h>
#include <plat/pm.h>
#include <plat/udc.h>
#include <plat/gpio-cfg.h>
#include <plat/gpio-core.h>
#include <plat/iic.h>

#include <mach/gta02-pm-gps.h>
#include <mach/gta02-pm-wlan.h>

#include <mach/gta02-fiq.h>

#include <linux/hdq.h>
#include <linux/bq27000_battery.h>
#include <linux/platform_battery.h>

#include <linux/jbt6k74.h>
#include <linux/glamofb.h>
#include <linux/mfd/glamo.h>

static struct pcf50633 *gta02_pcf;

/*
 * This gets called every 1ms when we paniced.
 */

static long gta02_panic_blink(long count)
{
	long delay = 0;
	static long last_blink;
	static char led;

	/* Fast blink: 200ms period. */
	if (count - last_blink < 100)
		return 0;

	led ^= 1;
	gpio_direction_output(GTA02_GPIO_AUX_LED, led);

	last_blink = count;

	return delay;
}


static struct map_desc gta02_iodesc[] __initdata = {
	{
		.virtual	= 0xe0000000,
		.pfn		= __phys_to_pfn(S3C2410_CS3 + 0x01000000),
		.length		= SZ_1M,
		.type		= MT_DEVICE
	},
};

#define UCON (S3C2410_UCON_DEFAULT | S3C2443_UCON_RXERR_IRQEN)
#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)

static struct s3c2410_uartcfg gta02_uartcfgs[] = {
	[0] = {
		.hwport		= 0,
		.flags		= 0,
		.ucon		= UCON,
		.ulcon		= ULCON,
		.ufcon		= UFCON,
	},
	[1] = {
		.hwport		= 1,
		.flags		= 0,
		.ucon		= UCON,
		.ulcon		= ULCON,
		.ufcon		= UFCON,
	},
	[2] = {
		.hwport		= 2,
		.flags		= 0,
		.ucon		= UCON,
		.ulcon		= ULCON,
		.ufcon		= UFCON,
	},
};

static struct platform_device gta02_pm_bt_dev = {
	.name = "gta02-pm-bt",
};

static struct platform_device gta02_pm_gps_dev = {
	.name = "gta02-pm-gps",
};

static struct platform_device gta02_pm_gsm_dev = {
	.name = "gta02-pm-gsm",
};

static struct platform_device gta02_pm_wlan_dev = {
	.name = "gta02-pm-wlan",
};

static struct regulator_consumer_supply gsm_supply_consumer = {
	.dev = &gta02_pm_gsm_dev.dev,
	.supply = "GSM",
};

static struct regulator_init_data gsm_supply_init_data = {
	.constraints = {
		.min_uV = 3700000,
		.max_uV = 3700000,
		.valid_modes_mask = REGULATOR_MODE_NORMAL,
		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
	},
	.num_consumer_supplies = 1,
	.consumer_supplies = &gsm_supply_consumer,
};

static struct fixed_voltage_config gsm_supply_config = {
	.supply_name = "GSM",
	.microvolts = 3700000,
	.gpio = GTA02_GPIO_PCF(PCF50633_GPIO2),
	.enable_high = 1,
	.init_data = &gsm_supply_init_data,
};

static struct platform_device gta02_gsm_supply_device = {
	.name = "reg-fixed-voltage",
	.id = 1,
	.dev = {
		.platform_data = &gsm_supply_config,
	},
};

/*
 * we crank down SD Card clock dynamically when GPS is powered
 */

static int gta02_glamo_mci_use_slow(void)
{
	return gta02_pm_gps_is_on();
}

static void gta02_glamo_external_reset(int level)
{
	s3c2410_gpio_setpin(GTA02_GPIO_3D_RESET, level);
	s3c2410_gpio_cfgpin(GTA02_GPIO_3D_RESET, S3C2410_GPIO_OUTPUT);
}

struct spi_gpio_platform_data spigpio_platform_data = {
	.sck = GTA02_GPIO_GLAMO(10),
	.mosi = GTA02_GPIO_GLAMO(11),
	.miso = GTA02_GPIO_GLAMO(5),
	.num_chipselect = 1,
};

static struct platform_device spigpio_device = {
	.name = "spi_gpio",
	.id   = 2,
	.dev = {
		.platform_data = &spigpio_platform_data,
	},
};

static void gta02_glamo_registered(struct device *dev)
{
	spigpio_device.dev.parent = dev;
	platform_device_register(&spigpio_device);
}

static struct fb_videomode gta02_glamo_modes[] = {
	{
		.name = "480x640",
		.xres = 480,
		.yres = 640,
		.pixclock	= 40816,
		.left_margin	= 8,
		.right_margin	= 16,
		.upper_margin	= 2,
		.lower_margin	= 16,
		.hsync_len	= 8,
		.vsync_len	= 2,
		.vmode = FB_VMODE_NONINTERLACED,
	}, {
		.name = "240x320",
		.xres = 240,
		.yres = 320,
		.pixclock	= 40816,
		.left_margin	= 8,
		.right_margin	= 16,
		.upper_margin	= 2,
		.lower_margin	= 16,
		.hsync_len	= 8,
		.vsync_len	= 2,
		.vmode = FB_VMODE_NONINTERLACED,
	}
};

static struct glamo_fb_platform_data gta02_glamo_fb_pdata = {
	.width  = 43,
	.height = 58,

	.num_modes = ARRAY_SIZE(gta02_glamo_modes),
	.modes = gta02_glamo_modes,
};

static struct glamo_mmc_platform_data gta02_glamo_mmc_pdata = {
	.glamo_mmc_use_slow = gta02_glamo_mci_use_slow,
};

static struct glamo_gpio_platform_data gta02_glamo_gpio_pdata = {
	.base = GTA02_GPIO_GLAMO_BASE,
	.registered = gta02_glamo_registered,
};

static struct glamo_platform_data gta02_glamo_pdata = {
	.fb_data    = &gta02_glamo_fb_pdata,
	.mmc_data   = &gta02_glamo_mmc_pdata,
	.gpio_data  = &gta02_glamo_gpio_pdata,

	.osci_clock_rate = 32768,

	.glamo_external_reset = gta02_glamo_external_reset,
};

/* JBT6k74 display controller */
static void gta02_jbt6k74_probe_completed(struct device *dev)
 {
	pcf50633_bl_set_brightness_limit(gta02_pcf, 0x3f);
}
 
const static struct jbt6k74_platform_data jbt6k74_pdata = {
	.gpio_reset = GTA02_GPIO_GLAMO(4),
};

static struct spi_board_info gta02_spi_board_info[] = {
	{
		.modalias	= "jbt6k74",
		.platform_data	= &jbt6k74_pdata,
		.controller_data = (void*)GTA02_GPIO_GLAMO(12),
		/* irq */
		.max_speed_hz	= 100 * 1000,
		.bus_num	= 2,
		.chip_select = 0
	},
};
 
static struct resource gta02_glamo_resources[] = {
	[0] = {
		.start	= S3C2410_CS1,
		.end	= S3C2410_CS1 + 0x1000000 - 1,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= GTA02_IRQ_3D,
		.end	= GTA02_IRQ_3D,
		.flags	= IORESOURCE_IRQ,
	},
	[2] = {
		.start	= IRQ_BOARD_START,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device gta02_glamo_dev = {
	.name		= "glamo3362",
	.num_resources	= ARRAY_SIZE(gta02_glamo_resources),
	.resource	= gta02_glamo_resources,
	.dev		= {
		.platform_data	= &gta02_glamo_pdata,
	},
};


#ifdef CONFIG_CHARGER_PCF50633
/*
 * On GTA02 the 1A charger features a 48K resistor to 0V on the ID pin.
 * We use this to recognize that we can pull 1A from the USB socket.
 *
 * These constants are the measured pcf50633 ADC levels with the 1A
 * charger / 48K resistor, and with no pulldown resistor.
 */

#define ADC_NOM_CHG_DETECT_1A 6
#define ADC_NOM_CHG_DETECT_USB 43

static int gta02_get_charger_online_status(void)
{
	struct pcf50633 *pcf = gta02_pcf;

	return pcf50633_mbc_get_status(pcf) & PCF50633_MBC_USB_ONLINE;
}

static int gta02_get_charger_active_status(void)
{
	struct pcf50633 *pcf = gta02_pcf;

	return pcf50633_mbc_get_status(pcf) & PCF50633_MBC_USB_ACTIVE;
}

static void
gta02_configure_pmu_for_charger(struct pcf50633 *pcf, void *unused, int res)
{
	int ma;

	if (res < ((ADC_NOM_CHG_DETECT_USB + ADC_NOM_CHG_DETECT_1A) / 2))
		ma = 1000;
	else
		ma = 100;

	pcf50633_mbc_usb_curlim_set(pcf, ma);
}

static struct delayed_work gta02_charger_work;
static int gta02_usb_vbus_draw;

static void gta02_charger_worker(struct work_struct *work)
{
	if (gta02_usb_vbus_draw) {
		pcf50633_mbc_usb_curlim_set(gta02_pcf, gta02_usb_vbus_draw);
		return;
	}

#ifdef CONFIG_PCF50633_ADC
	pcf50633_adc_async_read(gta02_pcf,
				PCF50633_ADCC1_MUX_ADCIN1,
				PCF50633_ADCC1_AVERAGE_16,
				gta02_configure_pmu_for_charger,
				NULL);
#else
	/*
	 * If the PCF50633 ADC is disabled we fallback to a
	 * 100mA limit for safety.
	 */
	pcf50633_mbc_usb_curlim_set(pcf, 100);
#endif
}

#define GTA02_CHARGER_CONFIGURE_TIMEOUT ((3000 * HZ) / 1000)

static void gta02_pmu_event_callback(struct pcf50633 *pcf, int irq)
{
	if (irq == PCF50633_IRQ_USBINS) {
		schedule_delayed_work(&gta02_charger_work,
				      GTA02_CHARGER_CONFIGURE_TIMEOUT);

		return;
	}

	if (irq == PCF50633_IRQ_USBREM) {
		cancel_delayed_work_sync(&gta02_charger_work);
		gta02_usb_vbus_draw = 0;
	}
}

static void gta02_udc_vbus_draw(unsigned int ma)
{
	if (!gta02_pcf)
		return;

	gta02_usb_vbus_draw = ma;

	schedule_delayed_work(&gta02_charger_work,
			      GTA02_CHARGER_CONFIGURE_TIMEOUT);
}
#else /* !CONFIG_CHARGER_PCF50633 */
#define gta02_pmu_event_callback	NULL
#define gta02_udc_vbus_draw		NULL
#define gta02_get_charger_online_status	NULL
#define gta02_get_charger_active_status	NULL
#endif

/*
 * This is called when pc50633 is probed, unfortunately quite late in the
 * day since it is an I2C bus device. Here we can belatedly define some
 * platform devices with the advantage that we can mark the pcf50633 as the
 * parent. This makes them get suspended and resumed with their parent
 * the pcf50633 still around.
 */

static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf);


static char *gta02_batteries[] = {
	"battery",
};

static struct regulator_consumer_supply ldo4_consumers[] = {
	{
		.dev = &gta02_pm_bt_dev.dev,
		.supply = "BT_3V2",
	},
};

static struct regulator_consumer_supply ldo5_consumers[] = {
	{
		.dev = &gta02_pm_gps_dev.dev,
		.supply = "RF_3V",
	},
};

static struct regulator_consumer_supply ldo6_consumers[] = {
	REGULATOR_SUPPLY("VDC", "spi2.0"),
	REGULATOR_SUPPLY("VDDIO", "spi2.0"),
};

static struct regulator_consumer_supply hcldo_consumers[] = {
	{
		.dev = &gta02_glamo_dev.dev,
		.supply = "SD_3V3",
	},
};

static struct pcf50633_bl_platform_data gta02_backlight_data = {
	.default_brightness = 0x3f,
	.default_brightness_limit = 0,
	.ramp_time = 3,
};

struct pcf50633_platform_data gta02_pcf_pdata = {
	.resumers = {
		[0] =	PCF50633_INT1_USBINS |
			PCF50633_INT1_USBREM |
			PCF50633_INT1_ALARM,
		[1] =	PCF50633_INT2_ONKEYF,
		[2] =	PCF50633_INT3_ONKEY1S,
		[3] =	PCF50633_INT4_LOWSYS |
			PCF50633_INT4_LOWBAT |
			PCF50633_INT4_HIGHTMP,
	},

	.batteries = gta02_batteries,
	.num_batteries = ARRAY_SIZE(gta02_batteries),

	.charger_reference_current_ma = 1000,

	.backlight_data = &gta02_backlight_data,

	.gpio_base = GTA02_GPIO_PCF_BASE,

	.reg_init_data = {
		[PCF50633_REGULATOR_AUTO] = {
			.constraints = {
				.min_uV = 3300000,
				.max_uV = 3300000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.always_on = 1,
				.apply_uV = 1,
				.state_mem = {
					.enabled = 1,
				},
			},
		},
		[PCF50633_REGULATOR_DOWN1] = {
			.constraints = {
				.min_uV = 1300000,
				.max_uV = 1600000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.always_on = 1,
				.apply_uV = 1,
			},
		},
		[PCF50633_REGULATOR_DOWN2] = {
			.constraints = {
				.min_uV = 1800000,
				.max_uV = 1800000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.apply_uV = 1,
				.always_on = 1,
				.state_mem = {
					.enabled = 1,
				},
			},
		},
		[PCF50633_REGULATOR_HCLDO] = {
			.constraints = {
				.min_uV = 2000000,
				.max_uV = 3300000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | 
						REGULATOR_CHANGE_STATUS,
			},
			.num_consumer_supplies = ARRAY_SIZE(hcldo_consumers),
			.consumer_supplies = hcldo_consumers,
		},
		[PCF50633_REGULATOR_LDO1] = {
			.constraints = {
				.min_uV = 3300000,
				.max_uV = 3300000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.valid_ops_mask = REGULATOR_CHANGE_STATUS,
				.apply_uV = 1,
				.state_mem = {
					.enabled = 0,
				},
			},
		},
		[PCF50633_REGULATOR_LDO2] = {
			.constraints = {
				.min_uV = 3300000,
				.max_uV = 3300000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.apply_uV = 1,
			},
		},
		[PCF50633_REGULATOR_LDO3] = {
			.constraints = {
				.min_uV = 3000000,
				.max_uV = 3000000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.apply_uV = 1,
			},
		},
		[PCF50633_REGULATOR_LDO4] = {
			.constraints = {
				.min_uV = 3200000,
				.max_uV = 3200000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.valid_ops_mask = REGULATOR_CHANGE_STATUS,
				.apply_uV = 1,
			},
			.num_consumer_supplies = ARRAY_SIZE(ldo4_consumers),
			.consumer_supplies = ldo4_consumers,
		},
		[PCF50633_REGULATOR_LDO5] = {
			.constraints = {
				.min_uV = 3000000,
				.max_uV = 3000000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.valid_ops_mask = REGULATOR_CHANGE_STATUS,
				.apply_uV = 1,
				.state_mem = {
					.enabled = 1,
				},
			},
			.num_consumer_supplies = ARRAY_SIZE(ldo5_consumers),
			.consumer_supplies = ldo5_consumers,
		},
		[PCF50633_REGULATOR_LDO6] = {
			.constraints = {
				.min_uV = 3000000,
				.max_uV = 3000000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.valid_ops_mask = REGULATOR_CHANGE_STATUS,
			},
			.num_consumer_supplies = ARRAY_SIZE(ldo6_consumers),
			.consumer_supplies = ldo6_consumers,
		},
		[PCF50633_REGULATOR_MEMLDO] = {
			.constraints = {
				.min_uV = 1800000,
				.max_uV = 1800000,
				.valid_modes_mask = REGULATOR_MODE_NORMAL,
				.state_mem = {
					.enabled = 1,
				},
			},
		},

	},
	.probe_done = gta02_pmu_attach_child_devices,
	.mbc_event_callback = gta02_pmu_event_callback,
};


/* NOR Flash. */

#define GTA02_FLASH_BASE	0x18000000 /* GCS3 */
#define GTA02_FLASH_SIZE	0x200000 /* 2MBytes */

static struct physmap_flash_data gta02_nor_flash_data = {
	.width		= 2,
};

static struct resource gta02_nor_flash_resource = {
	.start		= GTA02_FLASH_BASE,
	.end		= GTA02_FLASH_BASE + GTA02_FLASH_SIZE - 1,
	.flags		= IORESOURCE_MEM,
};

static struct platform_device gta02_nor_flash = {
	.name		= "physmap-flash",
	.id		= 0,
	.dev		= {
		.platform_data	= &gta02_nor_flash_data,
	},
	.resource	= &gta02_nor_flash_resource,
	.num_resources	= 1,
};

static struct i2c_board_info gta02_i2c_devs[] __initdata = {
	{
		I2C_BOARD_INFO("pcf50633", 0x73),
		.irq = GTA02_IRQ_PCF50633,
		.platform_data = &gta02_pcf_pdata,
	},
	{
		I2C_BOARD_INFO("wm8753", 0x1a),
	},
};

static struct s3c2410_nand_set __initdata gta02_nand_sets[] = {
	[0] = {
		/*
		 * This name is also hard-coded in the boot loaders, so
		 * changing it would would require all users to upgrade
		 * their boot loaders, some of which are stored in a NOR
		 * that is considered to be immutable.
		 */
		.name		= "neo1973-nand",
		.nr_chips	= 1,
		.flash_bbt	= 1,
	},
};

/*
 * Choose a set of timings derived from S3C@2442B MCP54
 * data sheet (K5D2G13ACM-D075 MCP Memory).
 */

static struct s3c2410_platform_nand __initdata gta02_nand_info = {
	.tacls		= 0,
	.twrph0		= 25,
	.twrph1		= 15,
	.nr_sets	= ARRAY_SIZE(gta02_nand_sets),
	.sets		= gta02_nand_sets,
	.software_ecc	= 1,
};


static void gta02_udc_command(enum s3c2410_udc_cmd_e cmd)
{
	switch (cmd) {
	case S3C2410_UDC_P_ENABLE:
		pr_debug("%s S3C2410_UDC_P_ENABLE\n", __func__);
		gpio_set_value(GTA02_GPIO_USB_PULLUP, 1);
		break;
	case S3C2410_UDC_P_DISABLE:
		pr_debug("%s S3C2410_UDC_P_DISABLE\n", __func__);
		gpio_set_value(GTA02_GPIO_USB_PULLUP, 0);
		break;
	case S3C2410_UDC_P_RESET:
		pr_debug("%s S3C2410_UDC_P_RESET\n", __func__);
		/* FIXME: Do something here. */
	}
}

/* Get PMU to set USB current limit accordingly. */
static struct s3c2410_udc_mach_info gta02_udc_cfg = {
	.vbus_draw	= gta02_udc_vbus_draw,
	.udc_command	= gta02_udc_command,

};

/* USB */
static struct s3c2410_hcd_info gta02_usb_info __initdata = {
	.port[0]	= {
		.flags	= S3C_HCDFLG_USED,
	},
	.port[1]	= {
		.flags	= 0,
	},
};

/* Touchscreen */
static struct s3c2410_ts_mach_info gta02_ts_info = {
       .delay = 10000,
       .presc = 0xff, /* slow as we can go */
	   .oversampling_shift = 2,
};

/* Buttons */
static struct gpio_keys_button gta02_buttons[] = {
	{
		.gpio = GTA02_GPIO_AUX_KEY,
		.code = KEY_PHONE,
		.desc = "Aux",
		.type = EV_KEY,
		.debounce_interval = 100,
	},
	{
		.gpio = GTA02_GPIO_HOLD_KEY,
		.code = KEY_PAUSE,
		.desc = "Hold",
		.type = EV_KEY,
		.debounce_interval = 100,
	},
};

static struct gpio_keys_platform_data gta02_buttons_pdata = {
	.buttons = gta02_buttons,
	.nbuttons = ARRAY_SIZE(gta02_buttons),
};

static struct platform_device gta02_buttons_device = {
	.name = "gpio-keys",
	.id = -1,
	.dev = {
		.platform_data = &gta02_buttons_pdata,
	},
};

/* LEDs */
static struct gpio_led gta02_gpio_leds[] = {
	{
		.name	= "gta02:red:aux",
		.gpio	= GTA02_GPIO_AUX_LED,
	},
};

static struct gpio_led_platform_data gta02_gpio_leds_pdata = {
	.leds = gta02_gpio_leds,
	.num_leds = ARRAY_SIZE(gta02_gpio_leds),
};

static struct platform_device gta02_leds_device = {
	.name	= "leds-gpio",
	.id		= -1,
	.dev = {
		.platform_data = &gta02_gpio_leds_pdata,
	},
};

static inline int gta02_pwm_to_gpio(int pwm_id)
{
	return S3C2410_GPB(pwm_id);
}

static int gta02_pwm_led_init(struct device *dev, struct led_pwm *led)
{
	int ret;
	int gpio = gta02_pwm_to_gpio(led->pwm_id);

	ret = gpio_request(gpio, dev_name(dev));
	if (ret)
		return ret;

	gpio_direction_output(gpio, 0);

	return 0;
}

static enum led_brightness gta02_pwm_led_notify(struct device *dev,
	struct led_pwm *led, enum led_brightness brightness)
{
	int gpio = gta02_pwm_to_gpio(led->pwm_id);

	if (brightness == led->max_brightness || brightness == 0) {
		s3c2410_gpio_cfgpin(gpio, S3C2410_GPIO_OUTPUT);
		gpio_set_value(gpio, brightness ? 1 : 0);

		brightness = 0;
	} else {
		s3c2410_gpio_cfgpin(gpio, S3C2410_GPIO_SFN2);
	}

	return brightness;
}

static void gta02_pwm_led_exit(struct device *dev, struct led_pwm *led)
{
	gpio_free(gta02_pwm_to_gpio(led->pwm_id));
}

static struct led_pwm gta02_pwm_leds[] = {
	{
		.name = "gta02:orange:power",
		.max_brightness = 0xff,
		.pwm_period_ns = 1000000,
		.pwm_id = 0,
	},
	{
		.name = "gta02:blue:power",
		.max_brightness = 0xff,
		.pwm_period_ns = 1000000,
		.pwm_id = 1,
	},
	{
		.name = "gta02::vibrator",
		.max_brightness = 0x3f,
		.pwm_period_ns = 60000000,
		.pwm_id = 3,
	}
};

static struct led_pwm_platform_data gta02_pwm_leds_pdata = {
	.num_leds = ARRAY_SIZE(gta02_pwm_leds),
	.leds = gta02_pwm_leds,

	.init = gta02_pwm_led_init,
	.notify = gta02_pwm_led_notify,
	.exit = gta02_pwm_led_exit,
};

static struct platform_device gta02_pwm_leds_device = {
	.name	= "leds_pwm",
	.id	= -1,
	.dev = {
		.platform_data = &gta02_pwm_leds_pdata,
	}
};

/* BQ27000 Battery */

struct bq27000_platform_data bq27000_pdata = {
	.name = "battery",
	.rsense_mohms = 20,
	.hdq_read = hdq_read,
	.hdq_write = hdq_write,
	.hdq_initialized = hdq_initialized,
	.get_charger_online_status = gta02_get_charger_online_status,
	.get_charger_active_status = gta02_get_charger_active_status
};

struct platform_device bq27000_battery_device = {
	.name 		= "bq27000-battery",
	.dev = {
		.platform_data = &bq27000_pdata,
	},
};

/* Platform battery */

/* Capacity of a typical BL-5C dumb battery */
#define GTA02_BAT_CHARGE_FULL	850000

static int gta02_bat_voltscale(int volt)
{
	/* This table is suggested by SpeedEvil based on analysis of
	 * experimental data */
	static const int lut[][2] = {
		{ 4120, 100 },
		{ 3900, 60 },
		{ 3740, 25 },
		{ 3600, 5 },
		{ 3000, 0 } };
	int i, res = 0;

	if (volt > lut[0][0])
		res = lut[0][1];
	else
		for (i = 0; lut[i][1]; i++) {
			if (volt <= lut[i][0] && volt >= lut[i+1][0]) {
				res = lut[i][1] - (lut[i][0]-volt)*
					(lut[i][1]-lut[i+1][1])/
					(lut[i][0]-lut[i+1][0]);
				break;
			}
		}
	return res;
}

static int gta02_bat_get_voltage(void)
{
	struct pcf50633 *pcf = gta02_pcf;
	u16 adc, mv = 0;
	adc = pcf50633_adc_sync_read(pcf,
		PCF50633_ADCC1_MUX_BATSNS_RES,
		PCF50633_ADCC1_AVERAGE_16);
	/* The formula from DS is for divide-by-two mode, current driver uses
	divide-by-three */
	mv = (adc * 6000) / 1023;
	return mv * 1000;
}

static int gta02_bat_get_present(void)
{
	/* There is no reliable way to tell if it is present or not */
	return 1;
}

static int gta02_bat_get_status(void)
{
#ifdef CONFIG_CHARGER_PCF50633
	if (gta02_get_charger_active_status())
		return POWER_SUPPLY_STATUS_CHARGING;
	else
		return POWER_SUPPLY_STATUS_DISCHARGING;
#else
	return POWER_SUPPLY_STATUS_UNKNOWN;
#endif
}

static int gta02_bat_get_capacity(void)
{
	return gta02_bat_voltscale(gta02_bat_get_voltage()/1000);
}

static int gta02_bat_get_charge_full(void)
{
	return GTA02_BAT_CHARGE_FULL;
}

static int gta02_bat_get_charge_now(void)
{
	return gta02_bat_get_capacity() * gta02_bat_get_charge_full() / 100;
}

static enum power_supply_property gta02_platform_bat_properties[] = {
	POWER_SUPPLY_PROP_PRESENT,
	POWER_SUPPLY_PROP_STATUS,
	POWER_SUPPLY_PROP_VOLTAGE_NOW,
	POWER_SUPPLY_PROP_CAPACITY,
	POWER_SUPPLY_PROP_CHARGE_FULL,
	POWER_SUPPLY_PROP_CHARGE_NOW,
};

int (*gta02_platform_bat_get_property[])(void) = {
	gta02_bat_get_present,
	gta02_bat_get_status,
	gta02_bat_get_voltage,
	gta02_bat_get_capacity,
	gta02_bat_get_charge_full,
	gta02_bat_get_charge_now,
};

static struct platform_bat_platform_data gta02_platform_bat_pdata = {
	.name = "battery",
	.properties = gta02_platform_bat_properties,
	.num_properties = ARRAY_SIZE(gta02_platform_bat_properties),
	.get_property = gta02_platform_bat_get_property,
	.is_present = gta02_bat_get_present,
};

struct platform_device gta02_platform_bat = {
	.name = "platform_battery",
	.id = -1,
	.dev = {
		.platform_data = &gta02_platform_bat_pdata,
	}
};

/* HDQ */

static void gta02_hdq_gpio_direction_out(void)
{
	s3c2410_gpio_cfgpin(GTA02v5_GPIO_HDQ, S3C2410_GPIO_OUTPUT);
}

static void gta02_hdq_gpio_direction_in(void)
{
	s3c2410_gpio_cfgpin(GTA02v5_GPIO_HDQ, S3C2410_GPIO_INPUT);
}

static void gta02_hdq_gpio_set_value(int val)
{
	s3c2410_gpio_setpin(GTA02v5_GPIO_HDQ, val);
}

static int gta02_hdq_gpio_get_value(void)
{
	return s3c2410_gpio_getpin(GTA02v5_GPIO_HDQ);
}

struct hdq_platform_data gta02_hdq_platform_data = {
	.gpio_dir_out = gta02_hdq_gpio_direction_out,
	.gpio_dir_in = gta02_hdq_gpio_direction_in,
	.gpio_set = gta02_hdq_gpio_set_value,
	.gpio_get = gta02_hdq_gpio_get_value,

	.enable_fiq = gta02_fiq_enable,
	.disable_fiq = gta02_fiq_disable,
	.kick_fiq = gta02_fiq_kick,
};

struct platform_device gta02_hdq_device = {
	.name 		= "hdq",
	.id		= -1,
	.dev		= {
		.platform_data = &gta02_hdq_platform_data,
		.parent = &s3c_device_timer[2].dev,
	},
};

static void __init gta02_map_io(void)
{
	s3c24xx_init_io(gta02_iodesc, ARRAY_SIZE(gta02_iodesc));
	s3c24xx_init_clocks(12000000);
	s3c24xx_init_uarts(gta02_uartcfgs, ARRAY_SIZE(gta02_uartcfgs));
}


/* These are the guys that don't need to be children of PMU. */

static struct platform_device *gta02_devices[] __initdata = {
	&s3c_device_ohci,
	&s3c_device_wdt,
	&s3c_device_sdi,
	&s3c_device_usbgadget,
	&s3c_device_nand,
	&gta02_nor_flash,
	&s3c_device_timer[0],
	&s3c_device_timer[1],
	&s3c_device_timer[2],
	&s3c_device_timer[3],
	&s3c_device_iis,
	&s3c_device_i2c0,
	&gta02_buttons_device,
	&gta02_leds_device,
	&gta02_pwm_leds_device,
	&gta02_pm_gps_dev,
	&gta02_pm_bt_dev,
	&gta02_pm_wlan_dev,
	&gta02_glamo_dev,
	&s3c_device_adc,
	&s3c_device_ts,
};

/* These guys DO need to be children of PMU. */

static struct platform_device *gta02_devices_pmu_children[] = {
    &gta02_hdq_device,
	&gta02_platform_bat,
};

/*
 * This is called when pc50633 is probed, quite late in the day since it is an
 * I2C bus device.  Here we can define platform devices with the advantage that
 * we can mark the pcf50633 as the parent.  This makes them get suspended and
 * resumed with their parent the pcf50633 still around.  All devices whose
 * operation depends on something from pcf50633 must have this relationship
 * made explicit like this, or suspend and resume will become an unreliable
 * hellworld.
 */

static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf)
{
	int n;

	/* Grab a copy of the now probed PMU pointer. */
	gta02_pcf = pcf;

	for (n = 0; n < ARRAY_SIZE(gta02_devices_pmu_children); n++)
		gta02_devices_pmu_children[n]->dev.parent = pcf->dev;

	platform_add_devices(gta02_devices_pmu_children,
			     ARRAY_SIZE(gta02_devices_pmu_children));
}

static void gta02_poweroff(void)
{
	pcf50633_reg_set_bit_mask(gta02_pcf, PCF50633_REG_OOCSHDWN, 1, 1);
}

struct gta02_device_children {
	const char *dev_name;
	size_t num_children;
	struct platform_device **children;
	void (*probed_callback)(struct device *dev);
};

static struct platform_device* gta02_pcf50633_gpio_children[] = {
	&gta02_gsm_supply_device,
};

static struct platform_device* gta02_gsm_supply_children[] = {
	&gta02_pm_gsm_dev,
};

static struct platform_device* gta02_hdq_children[] = {
	&bq27000_battery_device,
};


static struct gta02_device_children gta02_device_children[] = {
	{
		.dev_name = "pcf50633-gpio",
		.num_children = 1,
		.children = gta02_pcf50633_gpio_children,
	},
	{
		.dev_name = "reg-fixed-voltage.1",
		.num_children = 1,
		.children = gta02_gsm_supply_children,
	},
	{
		.dev_name = "spi2.0",
		.probed_callback = gta02_jbt6k74_probe_completed,
	},
	{
		.dev_name = "hdq",
		.num_children = 1,
		.children = gta02_hdq_children,
	},
};

static int gta02_add_child_devices(struct device *parent,
                                   struct platform_device **children,
								   size_t num_children)
{
	size_t i;

	for (i = 0; i < num_children; ++i)
		children[i]->dev.parent = parent;

	return platform_add_devices(children, num_children);
}

static int gta02_device_registered(struct notifier_block *block,
                                   unsigned long action, void *data)
{
	struct device *dev = data;
	const char *devname = dev_name(dev);
	size_t i;

	if (action != BUS_NOTIFY_BOUND_DRIVER)
		return 0;

	for (i = 0; i < ARRAY_SIZE(gta02_device_children); ++i) {
		if (strcmp(devname, gta02_device_children[i].dev_name) == 0) {
			gta02_add_child_devices(dev, gta02_device_children[i].children,
			gta02_device_children[i].num_children);

			if (gta02_device_children[i].probed_callback)
				gta02_device_children[i].probed_callback(dev);
			break;
		}
	}

	return 0;
}

static struct notifier_block gta02_device_register_notifier = {
	.notifier_call = gta02_device_registered,
	.priority = INT_MAX,
};


/* On hardware rev 5 and earlier the leds are missing a resistor and reading
 * from their gpio pins will always return 0, so we have to shadow the
 * led states software */
static unsigned long gpb_shadow;
extern struct s3c_gpio_chip s3c24xx_gpios[];

static void gta02_gpb_set(struct gpio_chip *chip,
				unsigned offset, int value)
{
	void __iomem *base = S3C24XX_GPIO_BASE(S3C2410_GPB(0));
	unsigned long flags;
	unsigned long dat;

	local_irq_save(flags);

	dat = __raw_readl(base + 0x04) | gpb_shadow;
	dat &= ~(1 << offset);
	gpb_shadow &= ~(1 << offset);
	if (value) {
		dat |= 1 << offset;
		switch (offset) {
		case 0 ... 2:
			gpb_shadow |= 1 << offset;
			break;
		default:
			break;
		}
	}
	__raw_writel(dat, base + 0x04);

	local_irq_restore(flags);
}

static int gta02_gpb_get(struct gpio_chip *chip, unsigned offset)
{
	void __iomem *base = S3C24XX_GPIO_BASE(S3C2410_GPB(0));
	unsigned long val;

	val = __raw_readl(base + 0x04) | gpb_shadow;
	val >>= offset;
	val &= 1;

	return val;
}

static void gta02_hijack_gpb(void)
{
/* Uncomment this, once support for S3C_SYSTEM_REV_ATAG has been merged
 * upstream.
	if (S3C_SYSTEM_REV_ATAG > GTA02v5_SYSTEM_REV)
		return;
*/

	s3c24xx_gpios[1].chip.set = gta02_gpb_set;
	s3c24xx_gpios[1].chip.get = gta02_gpb_get;
}

/*
 * Allow the bootloader to enable hw ecc
 * hardware_ecc=1|0
 */
static int __init hardware_ecc_setup(char *str)
{
	if (str && str[0] == '1')
		gta02_nand_info.software_ecc = 0;
	return 1;
}
__setup("hardware_ecc=", hardware_ecc_setup);

static void gta02_request_gpios(void)
{
	int ret;
	ret = gpio_request(GTA02_GPIO_USB_PULLUP, "USB pullup");
	if (ret) {
		printk(KERN_ERR "Failed to request USB pullup gpio pin: %d\n", ret);
	} else {
		ret = gpio_direction_output(GTA02_GPIO_USB_PULLUP, 0);
		if (ret)
			printk(KERN_ERR "Failed to set USB pullup gpio direction: %d\n", ret);
    }
}

static void __init gta02_machine_init(void)
{
	/* Set the panic callback to make AUX LED blink at ~5Hz. */
	panic_blink = gta02_panic_blink;

	bus_register_notifier(&platform_bus_type, &gta02_device_register_notifier);
	bus_register_notifier(&spi_bus_type, &gta02_device_register_notifier);

	gta02_hijack_gpb();

	gta02_request_gpios();

	s3c_pm_init();

#ifdef CONFIG_CHARGER_PCF50633
	INIT_DELAYED_WORK(&gta02_charger_work, gta02_charger_worker);
#endif

	s3c24xx_udc_set_platdata(&gta02_udc_cfg);
	s3c24xx_ts_set_platdata(&gta02_ts_info);
	s3c_ohci_set_platdata(&gta02_usb_info);
	s3c_nand_set_platdata(&gta02_nand_info);
	s3c_i2c0_set_platdata(NULL);
	spi_register_board_info(gta02_spi_board_info,
				ARRAY_SIZE(gta02_spi_board_info));

	i2c_register_board_info(0, gta02_i2c_devs, ARRAY_SIZE(gta02_i2c_devs));

	platform_add_devices(gta02_devices, ARRAY_SIZE(gta02_devices));

	pm_power_off = gta02_poweroff;
}


MACHINE_START(NEO1973_GTA02, "GTA02")
	/* Maintainer: Nelson Castillo <arhuaco@freaks-unidos.net> */
	.phys_io	= S3C2410_PA_UART,
	.io_pg_offst	= (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
	.boot_params	= S3C2410_SDRAM_PA + 0x100,
	.map_io		= gta02_map_io,
	.init_irq	= s3c24xx_init_irq,
	.init_machine	= gta02_machine_init,
	.timer		= &s3c24xx_timer,
MACHINE_END