Training courses

Kernel and Embedded Linux

Bootlin training courses

Embedded Linux, kernel,
Yocto Project, Buildroot, real-time,
graphics, boot time, debugging...

Bootlin logo

Elixir Cross Referencer

   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
/*
 * arch/arm/mach-pxa/raumfeld.c
 *
 * Support for the following Raumfeld devices:
 *
 * 	* Controller
 *  	* Connector
 *  	* Speaker S/M
 *
 * See http://www.raumfeld.com for details.
 *
 * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
 *
 * 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/init.h>
#include <linux/kernel.h>
#include <linux/property.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/smsc911x.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
#include <linux/input/eeti_ts.h>
#include <linux/leds.h>
#include <linux/w1-gpio.h>
#include <linux/sched.h>
#include <linux/pwm.h>
#include <linux/pwm_backlight.h>
#include <linux/i2c.h>
#include <linux/i2c/pxa-i2c.h>
#include <linux/spi/spi.h>
#include <linux/spi/spi_gpio.h>
#include <linux/lis3lv02d.h>
#include <linux/pda_power.h>
#include <linux/power_supply.h>
#include <linux/regulator/max8660.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/consumer.h>
#include <linux/delay.h>

#include <asm/system_info.h>

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

#include "pxa300.h"
#include <linux/platform_data/usb-ohci-pxa27x.h>
#include <linux/platform_data/video-pxafb.h>
#include <linux/platform_data/mmc-pxamci.h>
#include <linux/platform_data/mtd-nand-pxa3xx.h>

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

/* common GPIO	definitions */

/* inputs */
#define GPIO_ON_OFF		(14)
#define GPIO_VOLENC_A		(19)
#define GPIO_VOLENC_B		(20)
#define GPIO_CHARGE_DONE	(23)
#define GPIO_CHARGE_IND		(27)
#define GPIO_TOUCH_IRQ		(32)
#define GPIO_ETH_IRQ		(40)
#define GPIO_SPI_MISO		(98)
#define GPIO_ACCEL_IRQ		(104)
#define GPIO_RESCUE_BOOT	(115)
#define GPIO_DOCK_DETECT	(116)
#define GPIO_KEY1		(117)
#define GPIO_KEY2		(118)
#define GPIO_KEY3		(119)
#define GPIO_CHARGE_USB_OK	(112)
#define GPIO_CHARGE_DC_OK	(101)
#define GPIO_CHARGE_USB_SUSP	(102)

/* outputs */
#define GPIO_SHUTDOWN_SUPPLY	(16)
#define GPIO_SHUTDOWN_BATT	(18)
#define GPIO_CHRG_PEN2		(31)
#define GPIO_TFT_VA_EN		(33)
#define GPIO_SPDIF_CS		(34)
#define GPIO_LED2		(35)
#define GPIO_LED1		(36)
#define GPIO_SPDIF_RESET	(38)
#define GPIO_SPI_CLK		(95)
#define GPIO_MCLK_DAC_CS	(96)
#define GPIO_SPI_MOSI		(97)
#define GPIO_W1_PULLUP_ENABLE	(105)
#define GPIO_DISPLAY_ENABLE	(106)
#define GPIO_MCLK_RESET		(111)
#define GPIO_W2W_RESET		(113)
#define GPIO_W2W_PDN		(114)
#define GPIO_CODEC_RESET	(120)
#define GPIO_AUDIO_VA_ENABLE	(124)
#define GPIO_ACCEL_CS		(125)
#define GPIO_ONE_WIRE		(126)

/*
 * GPIO configurations
 */
static mfp_cfg_t raumfeld_controller_pin_config[] __initdata = {
	/* UART1 */
	GPIO77_UART1_RXD,
	GPIO78_UART1_TXD,
	GPIO79_UART1_CTS,
	GPIO81_UART1_DSR,
	GPIO83_UART1_DTR,
	GPIO84_UART1_RTS,

	/* UART3 */
	GPIO110_UART3_RXD,

	/* USB Host */
	GPIO0_2_USBH_PEN,
	GPIO1_2_USBH_PWR,

	/* I2C */
	GPIO21_I2C_SCL | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
	GPIO22_I2C_SDA | MFP_LPM_FLOAT | MFP_PULL_FLOAT,

	/* SPI */
	GPIO34_GPIO,	/* SPDIF_CS */
	GPIO96_GPIO,	/* MCLK_CS */
	GPIO125_GPIO,	/* ACCEL_CS */

	/* MMC */
	GPIO3_MMC1_DAT0,
	GPIO4_MMC1_DAT1,
	GPIO5_MMC1_DAT2,
	GPIO6_MMC1_DAT3,
	GPIO7_MMC1_CLK,
	GPIO8_MMC1_CMD,

	/* One-wire */
	GPIO126_GPIO | MFP_LPM_FLOAT,
	GPIO105_GPIO | MFP_PULL_LOW | MFP_LPM_PULL_LOW,

	/* CHRG_USB_OK */
	GPIO101_GPIO | MFP_PULL_HIGH,
	/* CHRG_USB_OK */
	GPIO112_GPIO | MFP_PULL_HIGH,
	/* CHRG_USB_SUSP */
	GPIO102_GPIO,
	/* DISPLAY_ENABLE */
	GPIO106_GPIO,
	/* DOCK_DETECT */
	GPIO116_GPIO | MFP_LPM_FLOAT | MFP_PULL_FLOAT,

	/* LCD */
	GPIO54_LCD_LDD_0,
	GPIO55_LCD_LDD_1,
	GPIO56_LCD_LDD_2,
	GPIO57_LCD_LDD_3,
	GPIO58_LCD_LDD_4,
	GPIO59_LCD_LDD_5,
	GPIO60_LCD_LDD_6,
	GPIO61_LCD_LDD_7,
	GPIO62_LCD_LDD_8,
	GPIO63_LCD_LDD_9,
	GPIO64_LCD_LDD_10,
	GPIO65_LCD_LDD_11,
	GPIO66_LCD_LDD_12,
	GPIO67_LCD_LDD_13,
	GPIO68_LCD_LDD_14,
	GPIO69_LCD_LDD_15,
	GPIO70_LCD_LDD_16,
	GPIO71_LCD_LDD_17,
	GPIO72_LCD_FCLK,
	GPIO73_LCD_LCLK,
	GPIO74_LCD_PCLK,
	GPIO75_LCD_BIAS,
};

static mfp_cfg_t raumfeld_connector_pin_config[] __initdata = {
	/* UART1 */
	GPIO77_UART1_RXD,
	GPIO78_UART1_TXD,
	GPIO79_UART1_CTS,
	GPIO81_UART1_DSR,
	GPIO83_UART1_DTR,
	GPIO84_UART1_RTS,

	/* UART3 */
	GPIO110_UART3_RXD,

	/* USB Host */
	GPIO0_2_USBH_PEN,
	GPIO1_2_USBH_PWR,

	/* I2C */
	GPIO21_I2C_SCL | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
	GPIO22_I2C_SDA | MFP_LPM_FLOAT | MFP_PULL_FLOAT,

	/* SPI */
	GPIO34_GPIO,	/* SPDIF_CS */
	GPIO96_GPIO,	/* MCLK_CS */
	GPIO125_GPIO,	/* ACCEL_CS */

	/* MMC */
	GPIO3_MMC1_DAT0,
	GPIO4_MMC1_DAT1,
	GPIO5_MMC1_DAT2,
	GPIO6_MMC1_DAT3,
	GPIO7_MMC1_CLK,
	GPIO8_MMC1_CMD,

	/* Ethernet */
	GPIO1_nCS2,			/* CS */
	GPIO40_GPIO | MFP_PULL_HIGH,	/* IRQ */

	/* SSP for I2S */
	GPIO85_SSP1_SCLK,
	GPIO89_SSP1_EXTCLK,
	GPIO86_SSP1_FRM,
	GPIO87_SSP1_TXD,
	GPIO88_SSP1_RXD,
	GPIO90_SSP1_SYSCLK,

	/* SSP2 for S/PDIF */
	GPIO25_SSP2_SCLK,
	GPIO26_SSP2_FRM,
	GPIO27_SSP2_TXD,
	GPIO29_SSP2_EXTCLK,

	/* LEDs */
	GPIO35_GPIO | MFP_LPM_PULL_LOW,
	GPIO36_GPIO | MFP_LPM_DRIVE_HIGH,
};

static mfp_cfg_t raumfeld_speaker_pin_config[] __initdata = {
	/* UART1 */
	GPIO77_UART1_RXD,
	GPIO78_UART1_TXD,
	GPIO79_UART1_CTS,
	GPIO81_UART1_DSR,
	GPIO83_UART1_DTR,
	GPIO84_UART1_RTS,

	/* UART3 */
	GPIO110_UART3_RXD,

	/* USB Host */
	GPIO0_2_USBH_PEN,
	GPIO1_2_USBH_PWR,

	/* I2C */
	GPIO21_I2C_SCL | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
	GPIO22_I2C_SDA | MFP_LPM_FLOAT | MFP_PULL_FLOAT,

	/* SPI */
	GPIO34_GPIO,	/* SPDIF_CS */
	GPIO96_GPIO,	/* MCLK_CS */
	GPIO125_GPIO,	/* ACCEL_CS */

	/* MMC */
	GPIO3_MMC1_DAT0,
	GPIO4_MMC1_DAT1,
	GPIO5_MMC1_DAT2,
	GPIO6_MMC1_DAT3,
	GPIO7_MMC1_CLK,
	GPIO8_MMC1_CMD,

	/* Ethernet */
	GPIO1_nCS2,			/* CS */
	GPIO40_GPIO | MFP_PULL_HIGH,	/* IRQ */

	/* SSP for I2S */
	GPIO85_SSP1_SCLK,
	GPIO89_SSP1_EXTCLK,
	GPIO86_SSP1_FRM,
	GPIO87_SSP1_TXD,
	GPIO88_SSP1_RXD,
	GPIO90_SSP1_SYSCLK,

	/* LEDs */
	GPIO35_GPIO | MFP_LPM_PULL_LOW,
	GPIO36_GPIO | MFP_LPM_DRIVE_HIGH,
};

/*
 * SMSC LAN9220 Ethernet
 */

static struct resource smc91x_resources[] = {
	{
		.start	= PXA3xx_CS2_PHYS,
		.end	= PXA3xx_CS2_PHYS + 0xfffff,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= PXA_GPIO_TO_IRQ(GPIO_ETH_IRQ),
		.end	= PXA_GPIO_TO_IRQ(GPIO_ETH_IRQ),
		.flags	= IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
	}
};

static struct smsc911x_platform_config raumfeld_smsc911x_config = {
	.phy_interface	= PHY_INTERFACE_MODE_MII,
	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
	.irq_type	= SMSC911X_IRQ_TYPE_OPEN_DRAIN,
	.flags		= SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
};

static struct platform_device smc91x_device = {
	.name		= "smsc911x",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(smc91x_resources),
	.resource	= smc91x_resources,
	.dev		= {
		.platform_data = &raumfeld_smsc911x_config,
	}
};

/**
 * NAND
 */

static struct mtd_partition raumfeld_nand_partitions[] = {
	{
		.name		= "Bootloader",
		.offset		= 0,
		.size		= 0xa0000,
		.mask_flags	= MTD_WRITEABLE, /* force read-only */
	},
	{
		.name		= "BootloaderEnvironment",
		.offset		= 0xa0000,
		.size		= 0x20000,
	},
	{
		.name		= "BootloaderSplashScreen",
		.offset		= 0xc0000,
		.size		= 0x60000,
	},
	{
		.name		= "UBI",
		.offset		= 0x120000,
		.size		= MTDPART_SIZ_FULL,
	},
};

static struct pxa3xx_nand_platform_data raumfeld_nand_info = {
	.enable_arbiter	= 1,
	.keep_config	= 1,
	.num_cs		= 1,
	.parts[0]	= raumfeld_nand_partitions,
	.nr_parts[0]	= ARRAY_SIZE(raumfeld_nand_partitions),
};

/**
 * USB (OHCI) support
 */

static struct pxaohci_platform_data raumfeld_ohci_info = {
	.port_mode      = PMM_GLOBAL_MODE,
	.flags		= ENABLE_PORT1,
};

/**
 * Rotary encoder input device
 */

static struct gpiod_lookup_table raumfeld_rotary_gpios_table = {
	.dev_id = "rotary-encoder.0",
	.table = {
		GPIO_LOOKUP_IDX("gpio-0",
				GPIO_VOLENC_A, NULL, 0, GPIO_ACTIVE_LOW),
		GPIO_LOOKUP_IDX("gpio-0",
				GPIO_VOLENC_B, NULL, 1, GPIO_ACTIVE_HIGH),
		{ },
	},
};

static struct property_entry raumfeld_rotary_properties[] = {
	PROPERTY_ENTRY_INTEGER("rotary-encoder,steps-per-period", u32, 24),
	PROPERTY_ENTRY_INTEGER("linux,axis",			  u32, REL_X),
	PROPERTY_ENTRY_INTEGER("rotary-encoder,relative_axis",	  u32, 1),
	{ },
};

static struct platform_device rotary_encoder_device = {
	.name		= "rotary-encoder",
	.id		= 0,
};

/**
 * GPIO buttons
 */

static struct gpio_keys_button gpio_keys_button[] = {
	{
		.code			= KEY_F1,
		.type			= EV_KEY,
		.gpio			= GPIO_KEY1,
		.active_low		= 1,
		.wakeup			= 0,
		.debounce_interval	= 5, /* ms */
		.desc			= "Button 1",
	},
	{
		.code			= KEY_F2,
		.type			= EV_KEY,
		.gpio			= GPIO_KEY2,
		.active_low		= 1,
		.wakeup			= 0,
		.debounce_interval	= 5, /* ms */
		.desc			= "Button 2",
	},
	{
		.code			= KEY_F3,
		.type			= EV_KEY,
		.gpio			= GPIO_KEY3,
		.active_low		= 1,
		.wakeup			= 0,
		.debounce_interval	= 5, /* ms */
		.desc			= "Button 3",
	},
	{
		.code			= KEY_F4,
		.type			= EV_KEY,
		.gpio			= GPIO_RESCUE_BOOT,
		.active_low		= 0,
		.wakeup			= 0,
		.debounce_interval	= 5, /* ms */
		.desc			= "rescue boot button",
	},
	{
		.code			= KEY_F5,
		.type			= EV_KEY,
		.gpio			= GPIO_DOCK_DETECT,
		.active_low		= 1,
		.wakeup			= 0,
		.debounce_interval	= 5, /* ms */
		.desc			= "dock detect",
	},
	{
		.code			= KEY_F6,
		.type			= EV_KEY,
		.gpio			= GPIO_ON_OFF,
		.active_low		= 0,
		.wakeup			= 0,
		.debounce_interval	= 5, /* ms */
		.desc			= "on_off button",
	},
};

static struct gpio_keys_platform_data gpio_keys_platform_data = {
	.buttons	= gpio_keys_button,
	.nbuttons	= ARRAY_SIZE(gpio_keys_button),
	.rep		= 0,
};

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

/**
 * GPIO LEDs
 */

static struct gpio_led raumfeld_leds[] = {
	{
		.name		= "raumfeld:1",
		.gpio		= GPIO_LED1,
		.active_low	= 1,
		.default_state	= LEDS_GPIO_DEFSTATE_ON,
	},
	{
		.name		= "raumfeld:2",
		.gpio		= GPIO_LED2,
		.active_low	= 0,
		.default_state	= LEDS_GPIO_DEFSTATE_OFF,
	}
};

static struct gpio_led_platform_data raumfeld_led_platform_data = {
	.leds		= raumfeld_leds,
	.num_leds	= ARRAY_SIZE(raumfeld_leds),
};

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

/**
 * One-wire (W1 bus) support
 */

static void w1_enable_external_pullup(int enable)
{
	gpio_set_value(GPIO_W1_PULLUP_ENABLE, enable);
	msleep(100);
}

static struct w1_gpio_platform_data w1_gpio_platform_data = {
	.pin			= GPIO_ONE_WIRE,
	.is_open_drain		= 0,
	.enable_external_pullup	= w1_enable_external_pullup,
	.ext_pullup_enable_pin	= -EINVAL,
};

static struct platform_device raumfeld_w1_gpio_device = {
	.name	= "w1-gpio",
	.dev	= {
		.platform_data = &w1_gpio_platform_data
	}
};

static void __init raumfeld_w1_init(void)
{
	int ret = gpio_request(GPIO_W1_PULLUP_ENABLE,
				"W1 external pullup enable");

	if (ret < 0)
		pr_warn("Unable to request GPIO_W1_PULLUP_ENABLE\n");
	else
		gpio_direction_output(GPIO_W1_PULLUP_ENABLE, 0);

	platform_device_register(&raumfeld_w1_gpio_device);
}

/**
 * Framebuffer device
 */

static struct pwm_lookup raumfeld_pwm_lookup[] = {
	PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight", NULL, 10000,
		   PWM_POLARITY_NORMAL),
};

/* PWM controlled backlight */
static struct platform_pwm_backlight_data raumfeld_pwm_backlight_data = {
	.max_brightness	= 100,
	.dft_brightness	= 100,
	.enable_gpio	= -1,
};

static struct platform_device raumfeld_pwm_backlight_device = {
	.name	= "pwm-backlight",
	.dev	= {
		.parent		= &pxa27x_device_pwm0.dev,
		.platform_data	= &raumfeld_pwm_backlight_data,
	}
};

/* LT3593 controlled backlight */
static struct gpio_led raumfeld_lt3593_led = {
	.name		= "backlight",
	.gpio		= mfp_to_gpio(MFP_PIN_GPIO17),
	.default_state	= LEDS_GPIO_DEFSTATE_ON,
};

static struct gpio_led_platform_data raumfeld_lt3593_platform_data = {
	.leds		= &raumfeld_lt3593_led,
	.num_leds	= 1,
};

static struct platform_device raumfeld_lt3593_device = {
	.name	= "leds-lt3593",
	.id	= -1,
	.dev	= {
		.platform_data = &raumfeld_lt3593_platform_data,
	},
};

static struct pxafb_mode_info sharp_lq043t3dx02_mode = {
	.pixclock	= 111000,
	.xres		= 480,
	.yres		= 272,
	.bpp		= 16,
	.hsync_len	= 41,
	.left_margin	= 2,
	.right_margin	= 1,
	.vsync_len	= 10,
	.upper_margin	= 3,
	.lower_margin	= 1,
	.sync		= 0,
};

static struct pxafb_mach_info raumfeld_sharp_lcd_info = {
	.modes		= &sharp_lq043t3dx02_mode,
	.num_modes	= 1,
	.video_mem_size = 0x400000,
	.lcd_conn	= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
#ifdef CONFIG_PXA3XX_GCU
	.acceleration_enabled = 1,
#endif
};

static void __init raumfeld_lcd_init(void)
{
	int ret;

	ret = gpio_request(GPIO_TFT_VA_EN, "display VA enable");
	if (ret < 0)
		pr_warn("Unable to request GPIO_TFT_VA_EN\n");
	else
		gpio_direction_output(GPIO_TFT_VA_EN, 1);

	msleep(100);

	ret = gpio_request(GPIO_DISPLAY_ENABLE, "display enable");
	if (ret < 0)
		pr_warn("Unable to request GPIO_DISPLAY_ENABLE\n");
	else
		gpio_direction_output(GPIO_DISPLAY_ENABLE, 1);

	/* Hardware revision 2 has the backlight regulator controlled
	 * by an LT3593, earlier and later devices use PWM for that. */
	if ((system_rev & 0xff) == 2) {
		platform_device_register(&raumfeld_lt3593_device);
	} else {
		mfp_cfg_t raumfeld_pwm_pin_config = GPIO17_PWM0_OUT;
		pxa3xx_mfp_config(&raumfeld_pwm_pin_config, 1);
		pwm_add_table(raumfeld_pwm_lookup,
			      ARRAY_SIZE(raumfeld_pwm_lookup));
		platform_device_register(&raumfeld_pwm_backlight_device);
	}

	pxa_set_fb_info(NULL, &raumfeld_sharp_lcd_info);
	platform_device_register(&pxa3xx_device_gcu);
}

/**
 * SPI devices
 */

static struct spi_gpio_platform_data raumfeld_spi_platform_data = {
	.sck		= GPIO_SPI_CLK,
	.mosi		= GPIO_SPI_MOSI,
	.miso		= GPIO_SPI_MISO,
	.num_chipselect	= 3,
};

static struct platform_device raumfeld_spi_device = {
	.name	= "spi_gpio",
	.id	= 0,
	.dev 	= {
		.platform_data	= &raumfeld_spi_platform_data,
	}
};

static struct lis3lv02d_platform_data lis3_pdata = {
	.click_flags 	= LIS3_CLICK_SINGLE_X |
			  LIS3_CLICK_SINGLE_Y |
			  LIS3_CLICK_SINGLE_Z,
	.irq_cfg	= LIS3_IRQ1_CLICK | LIS3_IRQ2_CLICK,
	.wakeup_flags	= LIS3_WAKEUP_X_LO | LIS3_WAKEUP_X_HI |
			  LIS3_WAKEUP_Y_LO | LIS3_WAKEUP_Y_HI |
			  LIS3_WAKEUP_Z_LO | LIS3_WAKEUP_Z_HI,
	.wakeup_thresh	= 10,
	.click_thresh_x = 10,
	.click_thresh_y = 10,
	.click_thresh_z = 10,
};

#define SPI_AK4104	\
{			\
	.modalias	= "ak4104-codec",	\
	.max_speed_hz	= 10000,		\
	.bus_num	= 0,			\
	.chip_select	= 0,			\
	.controller_data = (void *) GPIO_SPDIF_CS,	\
}

#define SPI_LIS3	\
{			\
	.modalias	= "lis3lv02d_spi",	\
	.max_speed_hz	= 1000000,		\
	.bus_num	= 0,			\
	.chip_select	= 1,			\
	.controller_data = (void *) GPIO_ACCEL_CS,	\
	.platform_data	= &lis3_pdata,		\
	.irq		= PXA_GPIO_TO_IRQ(GPIO_ACCEL_IRQ),	\
}

#define SPI_DAC7512	\
{	\
	.modalias	= "dac7512",		\
	.max_speed_hz	= 1000000,		\
	.bus_num	= 0,			\
	.chip_select	= 2,			\
	.controller_data = (void *) GPIO_MCLK_DAC_CS,	\
}

static struct spi_board_info connector_spi_devices[] __initdata = {
	SPI_AK4104,
	SPI_DAC7512,
};

static struct spi_board_info speaker_spi_devices[] __initdata = {
	SPI_DAC7512,
};

static struct spi_board_info controller_spi_devices[] __initdata = {
	SPI_LIS3,
};

/**
 * MMC for Marvell Libertas 8688 via SDIO
 */

static int raumfeld_mci_init(struct device *dev, irq_handler_t isr, void *data)
{
	gpio_set_value(GPIO_W2W_RESET, 1);
	gpio_set_value(GPIO_W2W_PDN, 1);

	return 0;
}

static void raumfeld_mci_exit(struct device *dev, void *data)
{
	gpio_set_value(GPIO_W2W_RESET, 0);
	gpio_set_value(GPIO_W2W_PDN, 0);
}

static struct pxamci_platform_data raumfeld_mci_platform_data = {
	.init			= raumfeld_mci_init,
	.exit			= raumfeld_mci_exit,
	.detect_delay_ms	= 200,
	.gpio_card_detect	= -1,
	.gpio_card_ro		= -1,
	.gpio_power		= -1,
};

/*
 * External power / charge logic
 */

static int power_supply_init(struct device *dev)
{
	return 0;
}

static void power_supply_exit(struct device *dev)
{
}

static int raumfeld_is_ac_online(void)
{
	return !gpio_get_value(GPIO_CHARGE_DC_OK);
}

static int raumfeld_is_usb_online(void)
{
	return 0;
}

static char *raumfeld_power_supplicants[] = { "ds2760-battery.0" };

static void raumfeld_power_signal_charged(void)
{
	struct power_supply *psy =
		power_supply_get_by_name(raumfeld_power_supplicants[0]);

	if (psy) {
		power_supply_set_battery_charged(psy);
		power_supply_put(psy);
	}
}

static int raumfeld_power_resume(void)
{
	/* check if GPIO_CHARGE_DONE went low while we were sleeping */
	if (!gpio_get_value(GPIO_CHARGE_DONE))
		raumfeld_power_signal_charged();

	return 0;
}

static struct pda_power_pdata power_supply_info = {
	.init			= power_supply_init,
	.is_ac_online		= raumfeld_is_ac_online,
	.is_usb_online		= raumfeld_is_usb_online,
	.exit			= power_supply_exit,
	.supplied_to		= raumfeld_power_supplicants,
	.num_supplicants	= ARRAY_SIZE(raumfeld_power_supplicants),
	.resume			= raumfeld_power_resume,
};

static struct resource power_supply_resources[] = {
	{
		.name  = "ac",
		.flags = IORESOURCE_IRQ |
			 IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE,
		.start = GPIO_CHARGE_DC_OK,
		.end   = GPIO_CHARGE_DC_OK,
	},
};

static irqreturn_t charge_done_irq(int irq, void *dev_id)
{
	raumfeld_power_signal_charged();
	return IRQ_HANDLED;
}

static struct platform_device raumfeld_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 void __init raumfeld_power_init(void)
{
	int ret;

	/* Set PEN2 high to enable maximum charge current */
	ret = gpio_request(GPIO_CHRG_PEN2, "CHRG_PEN2");
	if (ret < 0)
		pr_warn("Unable to request GPIO_CHRG_PEN2\n");
	else
		gpio_direction_output(GPIO_CHRG_PEN2, 1);

	ret = gpio_request(GPIO_CHARGE_DC_OK, "CABLE_DC_OK");
	if (ret < 0)
		pr_warn("Unable to request GPIO_CHARGE_DC_OK\n");

	ret = gpio_request(GPIO_CHARGE_USB_SUSP, "CHARGE_USB_SUSP");
	if (ret < 0)
		pr_warn("Unable to request GPIO_CHARGE_USB_SUSP\n");
	else
		gpio_direction_output(GPIO_CHARGE_USB_SUSP, 0);

	power_supply_resources[0].start = gpio_to_irq(GPIO_CHARGE_DC_OK);
	power_supply_resources[0].end = gpio_to_irq(GPIO_CHARGE_DC_OK);

	ret = request_irq(gpio_to_irq(GPIO_CHARGE_DONE),
			&charge_done_irq, IORESOURCE_IRQ_LOWEDGE,
			"charge_done", NULL);

	if (ret < 0)
		printk(KERN_ERR "%s: unable to register irq %d\n", __func__,
			GPIO_CHARGE_DONE);
	else
		platform_device_register(&raumfeld_power_supply);
}

/* Fixed regulator for AUDIO_VA, 0-0048 maps to the cs4270 codec device */

static struct regulator_consumer_supply audio_va_consumer_supply =
	REGULATOR_SUPPLY("va", "0-0048");

static struct regulator_init_data audio_va_initdata = {
	.consumer_supplies = &audio_va_consumer_supply,
	.num_consumer_supplies = 1,
	.constraints = {
		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
	},
};

static struct fixed_voltage_config audio_va_config = {
	.supply_name		= "audio_va",
	.microvolts		= 5000000,
	.gpio			= GPIO_AUDIO_VA_ENABLE,
	.enable_high		= 1,
	.enabled_at_boot	= 0,
	.init_data		= &audio_va_initdata,
};

static struct platform_device audio_va_device = {
	.name	= "reg-fixed-voltage",
	.id	= 0,
	.dev	= {
		.platform_data = &audio_va_config,
	},
};

/* Dummy supplies for Codec's VD/VLC */

static struct regulator_consumer_supply audio_dummy_supplies[] = {
	REGULATOR_SUPPLY("vd", "0-0048"),
	REGULATOR_SUPPLY("vlc", "0-0048"),
};

static struct regulator_init_data audio_dummy_initdata = {
	.consumer_supplies = audio_dummy_supplies,
	.num_consumer_supplies = ARRAY_SIZE(audio_dummy_supplies),
	.constraints = {
		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
	},
};

static struct fixed_voltage_config audio_dummy_config = {
	.supply_name		= "audio_vd",
	.microvolts		= 3300000,
	.gpio			= -1,
	.init_data		= &audio_dummy_initdata,
};

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

static struct platform_device *audio_regulator_devices[] = {
	&audio_va_device,
	&audio_supply_dummy_device,
};

/**
 * Regulator support via MAX8660
 */

static struct regulator_consumer_supply vcc_mmc_supply =
	REGULATOR_SUPPLY("vmmc", "pxa2xx-mci.0");

static struct regulator_init_data vcc_mmc_init_data = {
	.constraints = {
		.min_uV			= 3300000,
		.max_uV			= 3300000,
		.valid_modes_mask	= REGULATOR_MODE_NORMAL,
		.valid_ops_mask		= REGULATOR_CHANGE_STATUS |
					  REGULATOR_CHANGE_VOLTAGE |
					  REGULATOR_CHANGE_MODE,
	},
	.consumer_supplies = &vcc_mmc_supply,
	.num_consumer_supplies = 1,
};

static struct max8660_subdev_data max8660_v6_subdev_data = {
	.id		= MAX8660_V6,
	.name		= "vmmc",
	.platform_data	= &vcc_mmc_init_data,
};

static struct max8660_platform_data max8660_pdata = {
	.subdevs = &max8660_v6_subdev_data,
	.num_subdevs = 1,
};

/**
 * I2C devices
 */

static struct i2c_board_info raumfeld_pwri2c_board_info = {
	.type		= "max8660",
	.addr		= 0x34,
	.platform_data	= &max8660_pdata,
};

static struct i2c_board_info raumfeld_connector_i2c_board_info __initdata = {
	.type	= "cs4270",
	.addr	= 0x48,
};

static struct eeti_ts_platform_data eeti_ts_pdata = {
	.irq_active_high = 1,
	.irq_gpio = GPIO_TOUCH_IRQ,
};

static struct i2c_board_info raumfeld_controller_i2c_board_info __initdata = {
	.type	= "eeti_ts",
	.addr	= 0x0a,
	.platform_data = &eeti_ts_pdata,
};

static struct platform_device *raumfeld_common_devices[] = {
	&raumfeld_gpio_keys_device,
	&raumfeld_led_device,
	&raumfeld_spi_device,
};

static void __init raumfeld_audio_init(void)
{
	int ret;

	ret = gpio_request(GPIO_CODEC_RESET, "cs4270 reset");
	if (ret < 0)
		pr_warn("unable to request GPIO_CODEC_RESET\n");
	else
		gpio_direction_output(GPIO_CODEC_RESET, 1);

	ret = gpio_request(GPIO_SPDIF_RESET, "ak4104 s/pdif reset");
	if (ret < 0)
		pr_warn("unable to request GPIO_SPDIF_RESET\n");
	else
		gpio_direction_output(GPIO_SPDIF_RESET, 1);

	ret = gpio_request(GPIO_MCLK_RESET, "MCLK reset");
	if (ret < 0)
		pr_warn("unable to request GPIO_MCLK_RESET\n");
	else
		gpio_direction_output(GPIO_MCLK_RESET, 1);

	platform_add_devices(ARRAY_AND_SIZE(audio_regulator_devices));
}

static void __init raumfeld_common_init(void)
{
	int ret;

	/* The on/off button polarity has changed after revision 1 */
	if ((system_rev & 0xff) > 1) {
		int i;

		for (i = 0; i < ARRAY_SIZE(gpio_keys_button); i++)
			if (!strcmp(gpio_keys_button[i].desc, "on_off button"))
				gpio_keys_button[i].active_low = 1;
	}

	enable_irq_wake(IRQ_WAKEUP0);

	pxa3xx_set_nand_info(&raumfeld_nand_info);
	pxa3xx_set_i2c_power_info(NULL);
	pxa_set_ohci_info(&raumfeld_ohci_info);
	pxa_set_mci_info(&raumfeld_mci_platform_data);
	pxa_set_i2c_info(NULL);
	pxa_set_ffuart_info(NULL);

	ret = gpio_request(GPIO_W2W_RESET, "Wi2Wi reset");
	if (ret < 0)
		pr_warn("Unable to request GPIO_W2W_RESET\n");
	else
		gpio_direction_output(GPIO_W2W_RESET, 0);

	ret = gpio_request(GPIO_W2W_PDN, "Wi2Wi powerup");
	if (ret < 0)
		pr_warn("Unable to request GPIO_W2W_PDN\n");
	else
		gpio_direction_output(GPIO_W2W_PDN, 0);

	/* this can be used to switch off the device */
	ret = gpio_request(GPIO_SHUTDOWN_SUPPLY, "supply shutdown");
	if (ret < 0)
		pr_warn("Unable to request GPIO_SHUTDOWN_SUPPLY\n");
	else
		gpio_direction_output(GPIO_SHUTDOWN_SUPPLY, 0);

	platform_add_devices(ARRAY_AND_SIZE(raumfeld_common_devices));
	i2c_register_board_info(1, &raumfeld_pwri2c_board_info, 1);
}

static void __init __maybe_unused raumfeld_controller_init(void)
{
	int ret;

	pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_controller_pin_config));

	gpiod_add_lookup_table(&raumfeld_rotary_gpios_table);
	device_add_properties(&rotary_encoder_device.dev,
			      raumfeld_rotary_properties);
	platform_device_register(&rotary_encoder_device);

	spi_register_board_info(ARRAY_AND_SIZE(controller_spi_devices));
	i2c_register_board_info(0, &raumfeld_controller_i2c_board_info, 1);

	ret = gpio_request(GPIO_SHUTDOWN_BATT, "battery shutdown");
	if (ret < 0)
		pr_warn("Unable to request GPIO_SHUTDOWN_BATT\n");
	else
		gpio_direction_output(GPIO_SHUTDOWN_BATT, 0);

	raumfeld_common_init();
	raumfeld_power_init();
	raumfeld_lcd_init();
	raumfeld_w1_init();
}

static void __init __maybe_unused raumfeld_connector_init(void)
{
	pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_connector_pin_config));
	spi_register_board_info(ARRAY_AND_SIZE(connector_spi_devices));
	i2c_register_board_info(0, &raumfeld_connector_i2c_board_info, 1);

	platform_device_register(&smc91x_device);

	raumfeld_audio_init();
	raumfeld_common_init();
}

static void __init __maybe_unused raumfeld_speaker_init(void)
{
	pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_speaker_pin_config));
	spi_register_board_info(ARRAY_AND_SIZE(speaker_spi_devices));
	i2c_register_board_info(0, &raumfeld_connector_i2c_board_info, 1);

	platform_device_register(&smc91x_device);

	gpiod_add_lookup_table(&raumfeld_rotary_gpios_table);
	device_add_properties(&rotary_encoder_device.dev,
			      raumfeld_rotary_properties);
	platform_device_register(&rotary_encoder_device);

	raumfeld_audio_init();
	raumfeld_common_init();
}

/* physical memory regions */
#define	RAUMFELD_SDRAM_BASE	0xa0000000	/* SDRAM region */

#ifdef CONFIG_MACH_RAUMFELD_RC
MACHINE_START(RAUMFELD_RC, "Raumfeld Controller")
	.atag_offset	= 0x100,
	.init_machine	= raumfeld_controller_init,
	.map_io		= pxa3xx_map_io,
	.nr_irqs	= PXA_NR_IRQS,
	.init_irq	= pxa3xx_init_irq,
	.handle_irq	= pxa3xx_handle_irq,
	.init_time	= pxa_timer_init,
	.restart	= pxa_restart,
MACHINE_END
#endif

#ifdef CONFIG_MACH_RAUMFELD_CONNECTOR
MACHINE_START(RAUMFELD_CONNECTOR, "Raumfeld Connector")
	.atag_offset	= 0x100,
	.init_machine	= raumfeld_connector_init,
	.map_io		= pxa3xx_map_io,
	.nr_irqs	= PXA_NR_IRQS,
	.init_irq	= pxa3xx_init_irq,
	.handle_irq	= pxa3xx_handle_irq,
	.init_time	= pxa_timer_init,
	.restart	= pxa_restart,
MACHINE_END
#endif

#ifdef CONFIG_MACH_RAUMFELD_SPEAKER
MACHINE_START(RAUMFELD_SPEAKER, "Raumfeld Speaker")
	.atag_offset	= 0x100,
	.init_machine	= raumfeld_speaker_init,
	.map_io		= pxa3xx_map_io,
	.nr_irqs	= PXA_NR_IRQS,
	.init_irq	= pxa3xx_init_irq,
	.handle_irq	= pxa3xx_handle_irq,
	.init_time	= pxa_timer_init,
	.restart	= pxa_restart,
MACHINE_END
#endif