arch/arm/mach-pxa/raumfeld.c

   1 /*
   2  * arch/arm/mach-pxa/raumfeld.c
   3  *
   4  * Support for the following Raumfeld devices:
   5  *
   6  *      * Controller
   7  *      * Connector
   8  *      * Speaker S/M
   9  *
  10  * See http://www.raumfeld.com for details.
  11  *
  12  * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License version 2 as
  16  * published by the Free Software Foundation.
  17  */
  18
  19 #include <linux/init.h>
  20 #include <linux/kernel.h>
  21 #include <linux/property.h>
  22 #include <linux/platform_device.h>
  23 #include <linux/interrupt.h>
  24 #include <linux/gpio.h>
  25 #include <linux/gpio/machine.h>
  26 #include <linux/smsc911x.h>
  27 #include <linux/input.h>
  28 #include <linux/gpio_keys.h>
  29 #include <linux/leds.h>
  30 #include <linux/w1-gpio.h>
  31 #include <linux/sched.h>
  32 #include <linux/pwm.h>
  33 #include <linux/pwm_backlight.h>
  34 #include <linux/i2c.h>
  35 #include <linux/i2c/pxa-i2c.h>
  36 #include <linux/spi/spi.h>
  37 #include <linux/spi/spi_gpio.h>
  38 #include <linux/lis3lv02d.h>
  39 #include <linux/pda_power.h>
  40 #include <linux/power_supply.h>
  41 #include <linux/regulator/max8660.h>
  42 #include <linux/regulator/machine.h>
  43 #include <linux/regulator/fixed.h>
  44 #include <linux/regulator/consumer.h>
  45 #include <linux/delay.h>
  46
  47 #include <asm/system_info.h>
  48
  49 #include <asm/mach-types.h>
  50 #include <asm/mach/arch.h>
  51
  52 #include "pxa300.h"
  53 #include <linux/platform_data/usb-ohci-pxa27x.h>
  54 #include <linux/platform_data/video-pxafb.h>
  55 #include <linux/platform_data/mmc-pxamci.h>
  56 #include <linux/platform_data/mtd-nand-pxa3xx.h>
  57
  58 #include "generic.h"
  59 #include "devices.h"
  60
  61 /* common GPIO  definitions */
  62
  63 /* inputs */
  64 #define GPIO_ON_OFF             (14)
  65 #define GPIO_VOLENC_A           (19)
  66 #define GPIO_VOLENC_B           (20)
  67 #define GPIO_CHARGE_DONE        (23)
  68 #define GPIO_CHARGE_IND         (27)
  69 #define GPIO_TOUCH_IRQ          (32)
  70 #define GPIO_ETH_IRQ            (40)
  71 #define GPIO_SPI_MISO           (98)
  72 #define GPIO_ACCEL_IRQ          (104)
  73 #define GPIO_RESCUE_BOOT        (115)
  74 #define GPIO_DOCK_DETECT        (116)
  75 #define GPIO_KEY1               (117)
  76 #define GPIO_KEY2               (118)
  77 #define GPIO_KEY3               (119)
  78 #define GPIO_CHARGE_USB_OK      (112)
  79 #define GPIO_CHARGE_DC_OK       (101)
  80 #define GPIO_CHARGE_USB_SUSP    (102)
  81
  82 /* outputs */
  83 #define GPIO_SHUTDOWN_SUPPLY    (16)
  84 #define GPIO_SHUTDOWN_BATT      (18)
  85 #define GPIO_CHRG_PEN2          (31)
  86 #define GPIO_TFT_VA_EN          (33)
  87 #define GPIO_SPDIF_CS           (34)
  88 #define GPIO_LED2               (35)
  89 #define GPIO_LED1               (36)
  90 #define GPIO_SPDIF_RESET        (38)
  91 #define GPIO_SPI_CLK            (95)
  92 #define GPIO_MCLK_DAC_CS        (96)
  93 #define GPIO_SPI_MOSI           (97)
  94 #define GPIO_W1_PULLUP_ENABLE   (105)
  95 #define GPIO_DISPLAY_ENABLE     (106)
  96 #define GPIO_MCLK_RESET         (111)
  97 #define GPIO_W2W_RESET          (113)
  98 #define GPIO_W2W_PDN            (114)
  99 #define GPIO_CODEC_RESET        (120)
 100 #define GPIO_AUDIO_VA_ENABLE    (124)
 101 #define GPIO_ACCEL_CS           (125)
 102 #define GPIO_ONE_WIRE           (126)
 103
 104 /*
 105  * GPIO configurations
 106  */
 107 static mfp_cfg_t raumfeld_controller_pin_config[] __initdata = {
 108         /* UART1 */
 109         GPIO77_UART1_RXD,
 110         GPIO78_UART1_TXD,
 111         GPIO79_UART1_CTS,
 112         GPIO81_UART1_DSR,
 113         GPIO83_UART1_DTR,
 114         GPIO84_UART1_RTS,
 115
 116         /* UART3 */
 117         GPIO110_UART3_RXD,
 118
 119         /* USB Host */
 120         GPIO0_2_USBH_PEN,
 121         GPIO1_2_USBH_PWR,
 122
 123         /* I2C */
 124         GPIO21_I2C_SCL | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
 125         GPIO22_I2C_SDA | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
 126
 127         /* SPI */
 128         GPIO34_GPIO,    /* SPDIF_CS */
 129         GPIO96_GPIO,    /* MCLK_CS */
 130         GPIO125_GPIO,   /* ACCEL_CS */
 131
 132         /* MMC */
 133         GPIO3_MMC1_DAT0,
 134         GPIO4_MMC1_DAT1,
 135         GPIO5_MMC1_DAT2,
 136         GPIO6_MMC1_DAT3,
 137         GPIO7_MMC1_CLK,
 138         GPIO8_MMC1_CMD,
 139
 140         /* One-wire */
 141         GPIO126_GPIO | MFP_LPM_FLOAT,
 142         GPIO105_GPIO | MFP_PULL_LOW | MFP_LPM_PULL_LOW,
 143
 144         /* CHRG_USB_OK */
 145         GPIO101_GPIO | MFP_PULL_HIGH,
 146         /* CHRG_USB_OK */
 147         GPIO112_GPIO | MFP_PULL_HIGH,
 148         /* CHRG_USB_SUSP */
 149         GPIO102_GPIO,
 150         /* DISPLAY_ENABLE */
 151         GPIO106_GPIO,
 152         /* DOCK_DETECT */
 153         GPIO116_GPIO | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
 154
 155         /* LCD */
 156         GPIO54_LCD_LDD_0,
 157         GPIO55_LCD_LDD_1,
 158         GPIO56_LCD_LDD_2,
 159         GPIO57_LCD_LDD_3,
 160         GPIO58_LCD_LDD_4,
 161         GPIO59_LCD_LDD_5,
 162         GPIO60_LCD_LDD_6,
 163         GPIO61_LCD_LDD_7,
 164         GPIO62_LCD_LDD_8,
 165         GPIO63_LCD_LDD_9,
 166         GPIO64_LCD_LDD_10,
 167         GPIO65_LCD_LDD_11,
 168         GPIO66_LCD_LDD_12,
 169         GPIO67_LCD_LDD_13,
 170         GPIO68_LCD_LDD_14,
 171         GPIO69_LCD_LDD_15,
 172         GPIO70_LCD_LDD_16,
 173         GPIO71_LCD_LDD_17,
 174         GPIO72_LCD_FCLK,
 175         GPIO73_LCD_LCLK,
 176         GPIO74_LCD_PCLK,
 177         GPIO75_LCD_BIAS,
 178 };
 179
 180 static mfp_cfg_t raumfeld_connector_pin_config[] __initdata = {
 181         /* UART1 */
 182         GPIO77_UART1_RXD,
 183         GPIO78_UART1_TXD,
 184         GPIO79_UART1_CTS,
 185         GPIO81_UART1_DSR,
 186         GPIO83_UART1_DTR,
 187         GPIO84_UART1_RTS,
 188
 189         /* UART3 */
 190         GPIO110_UART3_RXD,
 191
 192         /* USB Host */
 193         GPIO0_2_USBH_PEN,
 194         GPIO1_2_USBH_PWR,
 195
 196         /* I2C */
 197         GPIO21_I2C_SCL | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
 198         GPIO22_I2C_SDA | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
 199
 200         /* SPI */
 201         GPIO34_GPIO,    /* SPDIF_CS */
 202         GPIO96_GPIO,    /* MCLK_CS */
 203         GPIO125_GPIO,   /* ACCEL_CS */
 204
 205         /* MMC */
 206         GPIO3_MMC1_DAT0,
 207         GPIO4_MMC1_DAT1,
 208         GPIO5_MMC1_DAT2,
 209         GPIO6_MMC1_DAT3,
 210         GPIO7_MMC1_CLK,
 211         GPIO8_MMC1_CMD,
 212
 213         /* Ethernet */
 214         GPIO1_nCS2,                     /* CS */
 215         GPIO40_GPIO | MFP_PULL_HIGH,    /* IRQ */
 216
 217         /* SSP for I2S */
 218         GPIO85_SSP1_SCLK,
 219         GPIO89_SSP1_EXTCLK,
 220         GPIO86_SSP1_FRM,
 221         GPIO87_SSP1_TXD,
 222         GPIO88_SSP1_RXD,
 223         GPIO90_SSP1_SYSCLK,
 224
 225         /* SSP2 for S/PDIF */
 226         GPIO25_SSP2_SCLK,
 227         GPIO26_SSP2_FRM,
 228         GPIO27_SSP2_TXD,
 229         GPIO29_SSP2_EXTCLK,
 230
 231         /* LEDs */
 232         GPIO35_GPIO | MFP_LPM_PULL_LOW,
 233         GPIO36_GPIO | MFP_LPM_DRIVE_HIGH,
 234 };
 235
 236 static mfp_cfg_t raumfeld_speaker_pin_config[] __initdata = {
 237         /* UART1 */
 238         GPIO77_UART1_RXD,
 239         GPIO78_UART1_TXD,
 240         GPIO79_UART1_CTS,
 241         GPIO81_UART1_DSR,
 242         GPIO83_UART1_DTR,
 243         GPIO84_UART1_RTS,
 244
 245         /* UART3 */
 246         GPIO110_UART3_RXD,
 247
 248         /* USB Host */
 249         GPIO0_2_USBH_PEN,
 250         GPIO1_2_USBH_PWR,
 251
 252         /* I2C */
 253         GPIO21_I2C_SCL | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
 254         GPIO22_I2C_SDA | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
 255
 256         /* SPI */
 257         GPIO34_GPIO,    /* SPDIF_CS */
 258         GPIO96_GPIO,    /* MCLK_CS */
 259         GPIO125_GPIO,   /* ACCEL_CS */
 260
 261         /* MMC */
 262         GPIO3_MMC1_DAT0,
 263         GPIO4_MMC1_DAT1,
 264         GPIO5_MMC1_DAT2,
 265         GPIO6_MMC1_DAT3,
 266         GPIO7_MMC1_CLK,
 267         GPIO8_MMC1_CMD,
 268
 269         /* Ethernet */
 270         GPIO1_nCS2,                     /* CS */
 271         GPIO40_GPIO | MFP_PULL_HIGH,    /* IRQ */
 272
 273         /* SSP for I2S */
 274         GPIO85_SSP1_SCLK,
 275         GPIO89_SSP1_EXTCLK,
 276         GPIO86_SSP1_FRM,
 277         GPIO87_SSP1_TXD,
 278         GPIO88_SSP1_RXD,
 279         GPIO90_SSP1_SYSCLK,
 280
 281         /* LEDs */
 282         GPIO35_GPIO | MFP_LPM_PULL_LOW,
 283         GPIO36_GPIO | MFP_LPM_DRIVE_HIGH,
 284 };
 285
 286 /*
 287  * SMSC LAN9220 Ethernet
 288  */
 289
 290 static struct resource smc91x_resources[] = {
 291         {
 292                 .start  = PXA3xx_CS2_PHYS,
 293                 .end    = PXA3xx_CS2_PHYS + 0xfffff,
 294                 .flags  = IORESOURCE_MEM,
 295         },
 296         {
 297                 .start  = PXA_GPIO_TO_IRQ(GPIO_ETH_IRQ),
 298                 .end    = PXA_GPIO_TO_IRQ(GPIO_ETH_IRQ),
 299                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
 300         }
 301 };
 302
 303 static struct smsc911x_platform_config raumfeld_smsc911x_config = {
 304         .phy_interface  = PHY_INTERFACE_MODE_MII,
 305         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 306         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
 307         .flags          = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
 308 };
 309
 310 static struct platform_device smc91x_device = {
 311         .name           = "smsc911x",
 312         .id             = -1,
 313         .num_resources  = ARRAY_SIZE(smc91x_resources),
 314         .resource       = smc91x_resources,
 315         .dev            = {
 316                 .platform_data = &raumfeld_smsc911x_config,
 317         }
 318 };
 319
 320 /**
 321  * NAND
 322  */
 323
 324 static struct mtd_partition raumfeld_nand_partitions[] = {
 325         {
 326                 .name           = "Bootloader",
 327                 .offset         = 0,
 328                 .size           = 0xa0000,
 329                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
 330         },
 331         {
 332                 .name           = "BootloaderEnvironment",
 333                 .offset         = 0xa0000,
 334                 .size           = 0x20000,
 335         },
 336         {
 337                 .name           = "BootloaderSplashScreen",
 338                 .offset         = 0xc0000,
 339                 .size           = 0x60000,
 340         },
 341         {
 342                 .name           = "UBI",
 343                 .offset         = 0x120000,
 344                 .size           = MTDPART_SIZ_FULL,
 345         },
 346 };
 347
 348 static struct pxa3xx_nand_platform_data raumfeld_nand_info = {
 349         .enable_arbiter = 1,
 350         .keep_config    = 1,
 351         .num_cs         = 1,
 352         .parts[0]       = raumfeld_nand_partitions,
 353         .nr_parts[0]    = ARRAY_SIZE(raumfeld_nand_partitions),
 354 };
 355
 356 /**
 357  * USB (OHCI) support
 358  */
 359
 360 static struct pxaohci_platform_data raumfeld_ohci_info = {
 361         .port_mode      = PMM_GLOBAL_MODE,
 362         .flags          = ENABLE_PORT1,
 363 };
 364
 365 /**
 366  * Rotary encoder input device
 367  */
 368
 369 static struct gpiod_lookup_table raumfeld_rotary_gpios_table = {
 370         .dev_id = "rotary-encoder.0",
 371         .table = {
 372                 GPIO_LOOKUP_IDX("gpio-0",
 373                                 GPIO_VOLENC_A, NULL, 0, GPIO_ACTIVE_LOW),
 374                 GPIO_LOOKUP_IDX("gpio-0",
 375                                 GPIO_VOLENC_B, NULL, 1, GPIO_ACTIVE_HIGH),
 376                 { },
 377         },
 378 };
 379
 380 static const struct property_entry raumfeld_rotary_properties[] __initconst = {
 381         PROPERTY_ENTRY_INTEGER("rotary-encoder,steps-per-period", u32, 24),
 382         PROPERTY_ENTRY_INTEGER("linux,axis",                      u32, REL_X),
 383         PROPERTY_ENTRY_INTEGER("rotary-encoder,relative_axis",    u32, 1),
 384         { },
 385 };
 386
 387 static struct platform_device rotary_encoder_device = {
 388         .name           = "rotary-encoder",
 389         .id             = 0,
 390 };
 391
 392 /**
 393  * GPIO buttons
 394  */
 395
 396 static struct gpio_keys_button gpio_keys_button[] = {
 397         {
 398                 .code                   = KEY_F1,
 399                 .type                   = EV_KEY,
 400                 .gpio                   = GPIO_KEY1,
 401                 .active_low             = 1,
 402                 .wakeup                 = 0,
 403                 .debounce_interval      = 5, /* ms */
 404                 .desc                   = "Button 1",
 405         },
 406         {
 407                 .code                   = KEY_F2,
 408                 .type                   = EV_KEY,
 409                 .gpio                   = GPIO_KEY2,
 410                 .active_low             = 1,
 411                 .wakeup                 = 0,
 412                 .debounce_interval      = 5, /* ms */
 413                 .desc                   = "Button 2",
 414         },
 415         {
 416                 .code                   = KEY_F3,
 417                 .type                   = EV_KEY,
 418                 .gpio                   = GPIO_KEY3,
 419                 .active_low             = 1,
 420                 .wakeup                 = 0,
 421                 .debounce_interval      = 5, /* ms */
 422                 .desc                   = "Button 3",
 423         },
 424         {
 425                 .code                   = KEY_F4,
 426                 .type                   = EV_KEY,
 427                 .gpio                   = GPIO_RESCUE_BOOT,
 428                 .active_low             = 0,
 429                 .wakeup                 = 0,
 430                 .debounce_interval      = 5, /* ms */
 431                 .desc                   = "rescue boot button",
 432         },
 433         {
 434                 .code                   = KEY_F5,
 435                 .type                   = EV_KEY,
 436                 .gpio                   = GPIO_DOCK_DETECT,
 437                 .active_low             = 1,
 438                 .wakeup                 = 0,
 439                 .debounce_interval      = 5, /* ms */
 440                 .desc                   = "dock detect",
 441         },
 442         {
 443                 .code                   = KEY_F6,
 444                 .type                   = EV_KEY,
 445                 .gpio                   = GPIO_ON_OFF,
 446                 .active_low             = 0,
 447                 .wakeup                 = 0,
 448                 .debounce_interval      = 5, /* ms */
 449                 .desc                   = "on_off button",
 450         },
 451 };
 452
 453 static struct gpio_keys_platform_data gpio_keys_platform_data = {
 454         .buttons        = gpio_keys_button,
 455         .nbuttons       = ARRAY_SIZE(gpio_keys_button),
 456         .rep            = 0,
 457 };
 458
 459 static struct platform_device raumfeld_gpio_keys_device = {
 460         .name   = "gpio-keys",
 461         .id     = -1,
 462         .dev    = {
 463                 .platform_data  = &gpio_keys_platform_data,
 464         }
 465 };
 466
 467 /**
 468  * GPIO LEDs
 469  */
 470
 471 static struct gpio_led raumfeld_leds[] = {
 472         {
 473                 .name           = "raumfeld:1",
 474                 .gpio           = GPIO_LED1,
 475                 .active_low     = 1,
 476                 .default_state  = LEDS_GPIO_DEFSTATE_ON,
 477         },
 478         {
 479                 .name           = "raumfeld:2",
 480                 .gpio           = GPIO_LED2,
 481                 .active_low     = 0,
 482                 .default_state  = LEDS_GPIO_DEFSTATE_OFF,
 483         }
 484 };
 485
 486 static struct gpio_led_platform_data raumfeld_led_platform_data = {
 487         .leds           = raumfeld_leds,
 488         .num_leds       = ARRAY_SIZE(raumfeld_leds),
 489 };
 490
 491 static struct platform_device raumfeld_led_device = {
 492         .name   = "leds-gpio",
 493         .id     = -1,
 494         .dev    = {
 495                 .platform_data = &raumfeld_led_platform_data,
 496         },
 497 };
 498
 499 /**
 500  * One-wire (W1 bus) support
 501  */
 502
 503 static void w1_enable_external_pullup(int enable)
 504 {
 505         gpio_set_value(GPIO_W1_PULLUP_ENABLE, enable);
 506         msleep(100);
 507 }
 508
 509 static struct w1_gpio_platform_data w1_gpio_platform_data = {
 510         .pin                    = GPIO_ONE_WIRE,
 511         .is_open_drain          = 0,
 512         .enable_external_pullup = w1_enable_external_pullup,
 513         .ext_pullup_enable_pin  = -EINVAL,
 514 };
 515
 516 static struct platform_device raumfeld_w1_gpio_device = {
 517         .name   = "w1-gpio",
 518         .dev    = {
 519                 .platform_data = &w1_gpio_platform_data
 520         }
 521 };
 522
 523 static void __init raumfeld_w1_init(void)
 524 {
 525         int ret = gpio_request(GPIO_W1_PULLUP_ENABLE,
 526                                 "W1 external pullup enable");
 527
 528         if (ret < 0)
 529                 pr_warn("Unable to request GPIO_W1_PULLUP_ENABLE\n");
 530         else
 531                 gpio_direction_output(GPIO_W1_PULLUP_ENABLE, 0);
 532
 533         platform_device_register(&raumfeld_w1_gpio_device);
 534 }
 535
 536 /**
 537  * Framebuffer device
 538  */
 539
 540 static struct pwm_lookup raumfeld_pwm_lookup[] = {
 541         PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight", NULL, 10000,
 542                    PWM_POLARITY_NORMAL),
 543 };
 544
 545 /* PWM controlled backlight */
 546 static struct platform_pwm_backlight_data raumfeld_pwm_backlight_data = {
 547         .max_brightness = 100,
 548         .dft_brightness = 100,
 549         .enable_gpio    = -1,
 550 };
 551
 552 static struct platform_device raumfeld_pwm_backlight_device = {
 553         .name   = "pwm-backlight",
 554         .dev    = {
 555                 .parent         = &pxa27x_device_pwm0.dev,
 556                 .platform_data  = &raumfeld_pwm_backlight_data,
 557         }
 558 };
 559
 560 /* LT3593 controlled backlight */
 561 static struct gpio_led raumfeld_lt3593_led = {
 562         .name           = "backlight",
 563         .gpio           = mfp_to_gpio(MFP_PIN_GPIO17),
 564         .default_state  = LEDS_GPIO_DEFSTATE_ON,
 565 };
 566
 567 static struct gpio_led_platform_data raumfeld_lt3593_platform_data = {
 568         .leds           = &raumfeld_lt3593_led,
 569         .num_leds       = 1,
 570 };
 571
 572 static struct platform_device raumfeld_lt3593_device = {
 573         .name   = "leds-lt3593",
 574         .id     = -1,
 575         .dev    = {
 576                 .platform_data = &raumfeld_lt3593_platform_data,
 577         },
 578 };
 579
 580 static struct pxafb_mode_info sharp_lq043t3dx02_mode = {
 581         .pixclock       = 111000,
 582         .xres           = 480,
 583         .yres           = 272,
 584         .bpp            = 16,
 585         .hsync_len      = 41,
 586         .left_margin    = 2,
 587         .right_margin   = 1,
 588         .vsync_len      = 10,
 589         .upper_margin   = 3,
 590         .lower_margin   = 1,
 591         .sync           = 0,
 592 };
 593
 594 static struct pxafb_mach_info raumfeld_sharp_lcd_info = {
 595         .modes          = &sharp_lq043t3dx02_mode,
 596         .num_modes      = 1,
 597         .video_mem_size = 0x400000,
 598         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 599 #ifdef CONFIG_PXA3XX_GCU
 600         .acceleration_enabled = 1,
 601 #endif
 602 };
 603
 604 static void __init raumfeld_lcd_init(void)
 605 {
 606         int ret;
 607
 608         ret = gpio_request(GPIO_TFT_VA_EN, "display VA enable");
 609         if (ret < 0)
 610                 pr_warn("Unable to request GPIO_TFT_VA_EN\n");
 611         else
 612                 gpio_direction_output(GPIO_TFT_VA_EN, 1);
 613
 614         msleep(100);
 615
 616         ret = gpio_request(GPIO_DISPLAY_ENABLE, "display enable");
 617         if (ret < 0)
 618                 pr_warn("Unable to request GPIO_DISPLAY_ENABLE\n");
 619         else
 620                 gpio_direction_output(GPIO_DISPLAY_ENABLE, 1);
 621
 622         /* Hardware revision 2 has the backlight regulator controlled
 623          * by an LT3593, earlier and later devices use PWM for that. */
 624         if ((system_rev & 0xff) == 2) {
 625                 platform_device_register(&raumfeld_lt3593_device);
 626         } else {
 627                 mfp_cfg_t raumfeld_pwm_pin_config = GPIO17_PWM0_OUT;
 628                 pxa3xx_mfp_config(&raumfeld_pwm_pin_config, 1);
 629                 pwm_add_table(raumfeld_pwm_lookup,
 630                               ARRAY_SIZE(raumfeld_pwm_lookup));
 631                 platform_device_register(&raumfeld_pwm_backlight_device);
 632         }
 633
 634         pxa_set_fb_info(NULL, &raumfeld_sharp_lcd_info);
 635         platform_device_register(&pxa3xx_device_gcu);
 636 }
 637
 638 /**
 639  * SPI devices
 640  */
 641
 642 static struct spi_gpio_platform_data raumfeld_spi_platform_data = {
 643         .sck            = GPIO_SPI_CLK,
 644         .mosi           = GPIO_SPI_MOSI,
 645         .miso           = GPIO_SPI_MISO,
 646         .num_chipselect = 3,
 647 };
 648
 649 static struct platform_device raumfeld_spi_device = {
 650         .name   = "spi_gpio",
 651         .id     = 0,
 652         .dev    = {
 653                 .platform_data  = &raumfeld_spi_platform_data,
 654         }
 655 };
 656
 657 static struct lis3lv02d_platform_data lis3_pdata = {
 658         .click_flags    = LIS3_CLICK_SINGLE_X |
 659                           LIS3_CLICK_SINGLE_Y |
 660                           LIS3_CLICK_SINGLE_Z,
 661         .irq_cfg        = LIS3_IRQ1_CLICK | LIS3_IRQ2_CLICK,
 662         .wakeup_flags   = LIS3_WAKEUP_X_LO | LIS3_WAKEUP_X_HI |
 663                           LIS3_WAKEUP_Y_LO | LIS3_WAKEUP_Y_HI |
 664                           LIS3_WAKEUP_Z_LO | LIS3_WAKEUP_Z_HI,
 665         .wakeup_thresh  = 10,
 666         .click_thresh_x = 10,
 667         .click_thresh_y = 10,
 668         .click_thresh_z = 10,
 669 };
 670
 671 #define SPI_AK4104      \
 672 {                       \
 673         .modalias       = "ak4104-codec",       \
 674         .max_speed_hz   = 10000,                \
 675         .bus_num        = 0,                    \
 676         .chip_select    = 0,                    \
 677         .controller_data = (void *) GPIO_SPDIF_CS,      \
 678 }
 679
 680 #define SPI_LIS3        \
 681 {                       \
 682         .modalias       = "lis3lv02d_spi",      \
 683         .max_speed_hz   = 1000000,              \
 684         .bus_num        = 0,                    \
 685         .chip_select    = 1,                    \
 686         .controller_data = (void *) GPIO_ACCEL_CS,      \
 687         .platform_data  = &lis3_pdata,          \
 688         .irq            = PXA_GPIO_TO_IRQ(GPIO_ACCEL_IRQ),      \
 689 }
 690
 691 #define SPI_DAC7512     \
 692 {       \
 693         .modalias       = "dac7512",            \
 694         .max_speed_hz   = 1000000,              \
 695         .bus_num        = 0,                    \
 696         .chip_select    = 2,                    \
 697         .controller_data = (void *) GPIO_MCLK_DAC_CS,   \
 698 }
 699
 700 static struct spi_board_info connector_spi_devices[] __initdata = {
 701         SPI_AK4104,
 702         SPI_DAC7512,
 703 };
 704
 705 static struct spi_board_info speaker_spi_devices[] __initdata = {
 706         SPI_DAC7512,
 707 };
 708
 709 static struct spi_board_info controller_spi_devices[] __initdata = {
 710         SPI_LIS3,
 711 };
 712
 713 /**
 714  * MMC for Marvell Libertas 8688 via SDIO
 715  */
 716
 717 static int raumfeld_mci_init(struct device *dev, irq_handler_t isr, void *data)
 718 {
 719         gpio_set_value(GPIO_W2W_RESET, 1);
 720         gpio_set_value(GPIO_W2W_PDN, 1);
 721
 722         return 0;
 723 }
 724
 725 static void raumfeld_mci_exit(struct device *dev, void *data)
 726 {
 727         gpio_set_value(GPIO_W2W_RESET, 0);
 728         gpio_set_value(GPIO_W2W_PDN, 0);
 729 }
 730
 731 static struct pxamci_platform_data raumfeld_mci_platform_data = {
 732         .init                   = raumfeld_mci_init,
 733         .exit                   = raumfeld_mci_exit,
 734         .detect_delay_ms        = 200,
 735         .gpio_card_detect       = -1,
 736         .gpio_card_ro           = -1,
 737         .gpio_power             = -1,
 738 };
 739
 740 /*
 741  * External power / charge logic
 742  */
 743
 744 static int power_supply_init(struct device *dev)
 745 {
 746         return 0;
 747 }
 748
 749 static void power_supply_exit(struct device *dev)
 750 {
 751 }
 752
 753 static int raumfeld_is_ac_online(void)
 754 {
 755         return !gpio_get_value(GPIO_CHARGE_DC_OK);
 756 }
 757
 758 static int raumfeld_is_usb_online(void)
 759 {
 760         return 0;
 761 }
 762
 763 static char *raumfeld_power_supplicants[] = { "ds2760-battery.0" };
 764
 765 static void raumfeld_power_signal_charged(void)
 766 {
 767         struct power_supply *psy =
 768                 power_supply_get_by_name(raumfeld_power_supplicants[0]);
 769
 770         if (psy) {
 771                 power_supply_set_battery_charged(psy);
 772                 power_supply_put(psy);
 773         }
 774 }
 775
 776 static int raumfeld_power_resume(void)
 777 {
 778         /* check if GPIO_CHARGE_DONE went low while we were sleeping */
 779         if (!gpio_get_value(GPIO_CHARGE_DONE))
 780                 raumfeld_power_signal_charged();
 781
 782         return 0;
 783 }
 784
 785 static struct pda_power_pdata power_supply_info = {
 786         .init                   = power_supply_init,
 787         .is_ac_online           = raumfeld_is_ac_online,
 788         .is_usb_online          = raumfeld_is_usb_online,
 789         .exit                   = power_supply_exit,
 790         .supplied_to            = raumfeld_power_supplicants,
 791         .num_supplicants        = ARRAY_SIZE(raumfeld_power_supplicants),
 792         .resume                 = raumfeld_power_resume,
 793 };
 794
 795 static struct resource power_supply_resources[] = {
 796         {
 797                 .name  = "ac",
 798                 .flags = IORESOURCE_IRQ |
 799                          IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE,
 800                 .start = GPIO_CHARGE_DC_OK,
 801                 .end   = GPIO_CHARGE_DC_OK,
 802         },
 803 };
 804
 805 static irqreturn_t charge_done_irq(int irq, void *dev_id)
 806 {
 807         raumfeld_power_signal_charged();
 808         return IRQ_HANDLED;
 809 }
 810
 811 static struct platform_device raumfeld_power_supply = {
 812         .name = "pda-power",
 813         .id   = -1,
 814         .dev  = {
 815                 .platform_data = &power_supply_info,
 816         },
 817         .resource      = power_supply_resources,
 818         .num_resources = ARRAY_SIZE(power_supply_resources),
 819 };
 820
 821 static void __init raumfeld_power_init(void)
 822 {
 823         int ret;
 824
 825         /* Set PEN2 high to enable maximum charge current */
 826         ret = gpio_request(GPIO_CHRG_PEN2, "CHRG_PEN2");
 827         if (ret < 0)
 828                 pr_warn("Unable to request GPIO_CHRG_PEN2\n");
 829         else
 830                 gpio_direction_output(GPIO_CHRG_PEN2, 1);
 831
 832         ret = gpio_request(GPIO_CHARGE_DC_OK, "CABLE_DC_OK");
 833         if (ret < 0)
 834                 pr_warn("Unable to request GPIO_CHARGE_DC_OK\n");
 835
 836         ret = gpio_request(GPIO_CHARGE_USB_SUSP, "CHARGE_USB_SUSP");
 837         if (ret < 0)
 838                 pr_warn("Unable to request GPIO_CHARGE_USB_SUSP\n");
 839         else
 840                 gpio_direction_output(GPIO_CHARGE_USB_SUSP, 0);
 841
 842         power_supply_resources[0].start = gpio_to_irq(GPIO_CHARGE_DC_OK);
 843         power_supply_resources[0].end = gpio_to_irq(GPIO_CHARGE_DC_OK);
 844
 845         ret = request_irq(gpio_to_irq(GPIO_CHARGE_DONE),
 846                         &charge_done_irq, IORESOURCE_IRQ_LOWEDGE,
 847                         "charge_done", NULL);
 848
 849         if (ret < 0)
 850                 printk(KERN_ERR "%s: unable to register irq %d\n", __func__,
 851                         GPIO_CHARGE_DONE);
 852         else
 853                 platform_device_register(&raumfeld_power_supply);
 854 }
 855
 856 /* Fixed regulator for AUDIO_VA, 0-0048 maps to the cs4270 codec device */
 857
 858 static struct regulator_consumer_supply audio_va_consumer_supply =
 859         REGULATOR_SUPPLY("va", "0-0048");
 860
 861 static struct regulator_init_data audio_va_initdata = {
 862         .consumer_supplies = &audio_va_consumer_supply,
 863         .num_consumer_supplies = 1,
 864         .constraints = {
 865                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
 866         },
 867 };
 868
 869 static struct fixed_voltage_config audio_va_config = {
 870         .supply_name            = "audio_va",
 871         .microvolts             = 5000000,
 872         .gpio                   = GPIO_AUDIO_VA_ENABLE,
 873         .enable_high            = 1,
 874         .enabled_at_boot        = 0,
 875         .init_data              = &audio_va_initdata,
 876 };
 877
 878 static struct platform_device audio_va_device = {
 879         .name   = "reg-fixed-voltage",
 880         .id     = 0,
 881         .dev    = {
 882                 .platform_data = &audio_va_config,
 883         },
 884 };
 885
 886 /* Dummy supplies for Codec's VD/VLC */
 887
 888 static struct regulator_consumer_supply audio_dummy_supplies[] = {
 889         REGULATOR_SUPPLY("vd", "0-0048"),
 890         REGULATOR_SUPPLY("vlc", "0-0048"),
 891 };
 892
 893 static struct regulator_init_data audio_dummy_initdata = {
 894         .consumer_supplies = audio_dummy_supplies,
 895         .num_consumer_supplies = ARRAY_SIZE(audio_dummy_supplies),
 896         .constraints = {
 897                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
 898         },
 899 };
 900
 901 static struct fixed_voltage_config audio_dummy_config = {
 902         .supply_name            = "audio_vd",
 903         .microvolts             = 3300000,
 904         .gpio                   = -1,
 905         .init_data              = &audio_dummy_initdata,
 906 };
 907
 908 static struct platform_device audio_supply_dummy_device = {
 909         .name   = "reg-fixed-voltage",
 910         .id     = 1,
 911         .dev    = {
 912                 .platform_data = &audio_dummy_config,
 913         },
 914 };
 915
 916 static struct platform_device *audio_regulator_devices[] = {
 917         &audio_va_device,
 918         &audio_supply_dummy_device,
 919 };
 920
 921 /**
 922  * Regulator support via MAX8660
 923  */
 924
 925 static struct regulator_consumer_supply vcc_mmc_supply =
 926         REGULATOR_SUPPLY("vmmc", "pxa2xx-mci.0");
 927
 928 static struct regulator_init_data vcc_mmc_init_data = {
 929         .constraints = {
 930                 .min_uV                 = 3300000,
 931                 .max_uV                 = 3300000,
 932                 .valid_modes_mask       = REGULATOR_MODE_NORMAL,
 933                 .valid_ops_mask         = REGULATOR_CHANGE_STATUS |
 934                                           REGULATOR_CHANGE_VOLTAGE |
 935                                           REGULATOR_CHANGE_MODE,
 936         },
 937         .consumer_supplies = &vcc_mmc_supply,
 938         .num_consumer_supplies = 1,
 939 };
 940
 941 static struct max8660_subdev_data max8660_v6_subdev_data = {
 942         .id             = MAX8660_V6,
 943         .name           = "vmmc",
 944         .platform_data  = &vcc_mmc_init_data,
 945 };
 946
 947 static struct max8660_platform_data max8660_pdata = {
 948         .subdevs = &max8660_v6_subdev_data,
 949         .num_subdevs = 1,
 950 };
 951
 952 /**
 953  * I2C devices
 954  */
 955
 956 static struct i2c_board_info raumfeld_pwri2c_board_info = {
 957         .type           = "max8660",
 958         .addr           = 0x34,
 959         .platform_data  = &max8660_pdata,
 960 };
 961
 962 static struct i2c_board_info raumfeld_connector_i2c_board_info __initdata = {
 963         .type   = "cs4270",
 964         .addr   = 0x48,
 965 };
 966
 967 static struct gpiod_lookup_table raumfeld_controller_gpios_table = {
 968         .dev_id = "0-000a",
 969         .table = {
 970                 GPIO_LOOKUP("gpio-pxa",
 971                             GPIO_TOUCH_IRQ, "attn", GPIO_ACTIVE_HIGH),
 972                 { },
 973         },
 974 };
 975
 976 static const struct resource raumfeld_controller_resources[] __initconst = {
 977         {
 978                 .start  = PXA_GPIO_TO_IRQ(GPIO_TOUCH_IRQ),
 979                 .end    = PXA_GPIO_TO_IRQ(GPIO_TOUCH_IRQ),
 980                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH,
 981         },
 982 };
 983
 984 static struct i2c_board_info raumfeld_controller_i2c_board_info __initdata = {
 985         .type   = "eeti_ts",
 986         .addr   = 0x0a,
 987         .resources = raumfeld_controller_resources,
 988         .num_resources = ARRAY_SIZE(raumfeld_controller_resources),
 989 };
 990
 991 static struct platform_device *raumfeld_common_devices[] = {
 992         &raumfeld_gpio_keys_device,
 993         &raumfeld_led_device,
 994         &raumfeld_spi_device,
 995 };
 996
 997 static void __init raumfeld_audio_init(void)
 998 {
 999         int ret;
1000
1001         ret = gpio_request(GPIO_CODEC_RESET, "cs4270 reset");
1002         if (ret < 0)
1003                 pr_warn("unable to request GPIO_CODEC_RESET\n");
1004         else
1005                 gpio_direction_output(GPIO_CODEC_RESET, 1);
1006
1007         ret = gpio_request(GPIO_SPDIF_RESET, "ak4104 s/pdif reset");
1008         if (ret < 0)
1009                 pr_warn("unable to request GPIO_SPDIF_RESET\n");
1010         else
1011                 gpio_direction_output(GPIO_SPDIF_RESET, 1);
1012
1013         ret = gpio_request(GPIO_MCLK_RESET, "MCLK reset");
1014         if (ret < 0)
1015                 pr_warn("unable to request GPIO_MCLK_RESET\n");
1016         else
1017                 gpio_direction_output(GPIO_MCLK_RESET, 1);
1018
1019         platform_add_devices(ARRAY_AND_SIZE(audio_regulator_devices));
1020 }
1021
1022 static void __init raumfeld_common_init(void)
1023 {
1024         int ret;
1025
1026         /* The on/off button polarity has changed after revision 1 */
1027         if ((system_rev & 0xff) > 1) {
1028                 int i;
1029
1030                 for (i = 0; i < ARRAY_SIZE(gpio_keys_button); i++)
1031                         if (!strcmp(gpio_keys_button[i].desc, "on_off button"))
1032                                 gpio_keys_button[i].active_low = 1;
1033         }
1034
1035         enable_irq_wake(IRQ_WAKEUP0);
1036
1037         pxa3xx_set_nand_info(&raumfeld_nand_info);
1038         pxa3xx_set_i2c_power_info(NULL);
1039         pxa_set_ohci_info(&raumfeld_ohci_info);
1040         pxa_set_mci_info(&raumfeld_mci_platform_data);
1041         pxa_set_i2c_info(NULL);
1042         pxa_set_ffuart_info(NULL);
1043
1044         ret = gpio_request(GPIO_W2W_RESET, "Wi2Wi reset");
1045         if (ret < 0)
1046                 pr_warn("Unable to request GPIO_W2W_RESET\n");
1047         else
1048                 gpio_direction_output(GPIO_W2W_RESET, 0);
1049
1050         ret = gpio_request(GPIO_W2W_PDN, "Wi2Wi powerup");
1051         if (ret < 0)
1052                 pr_warn("Unable to request GPIO_W2W_PDN\n");
1053         else
1054                 gpio_direction_output(GPIO_W2W_PDN, 0);
1055
1056         /* this can be used to switch off the device */
1057         ret = gpio_request(GPIO_SHUTDOWN_SUPPLY, "supply shutdown");
1058         if (ret < 0)
1059                 pr_warn("Unable to request GPIO_SHUTDOWN_SUPPLY\n");
1060         else
1061                 gpio_direction_output(GPIO_SHUTDOWN_SUPPLY, 0);
1062
1063         platform_add_devices(ARRAY_AND_SIZE(raumfeld_common_devices));
1064         i2c_register_board_info(1, &raumfeld_pwri2c_board_info, 1);
1065 }
1066
1067 static void __init __maybe_unused raumfeld_controller_init(void)
1068 {
1069         int ret;
1070
1071         pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_controller_pin_config));
1072
1073         gpiod_add_lookup_table(&raumfeld_rotary_gpios_table);
1074         device_add_properties(&rotary_encoder_device.dev,
1075                               raumfeld_rotary_properties);
1076         platform_device_register(&rotary_encoder_device);
1077
1078         spi_register_board_info(ARRAY_AND_SIZE(controller_spi_devices));
1079
1080         gpiod_add_lookup_table(&raumfeld_controller_gpios_table);
1081         i2c_register_board_info(0, &raumfeld_controller_i2c_board_info, 1);
1082
1083         ret = gpio_request(GPIO_SHUTDOWN_BATT, "battery shutdown");
1084         if (ret < 0)
1085                 pr_warn("Unable to request GPIO_SHUTDOWN_BATT\n");
1086         else
1087                 gpio_direction_output(GPIO_SHUTDOWN_BATT, 0);
1088
1089         raumfeld_common_init();
1090         raumfeld_power_init();
1091         raumfeld_lcd_init();
1092         raumfeld_w1_init();
1093 }
1094
1095 static void __init __maybe_unused raumfeld_connector_init(void)
1096 {
1097         pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_connector_pin_config));
1098         spi_register_board_info(ARRAY_AND_SIZE(connector_spi_devices));
1099         i2c_register_board_info(0, &raumfeld_connector_i2c_board_info, 1);
1100
1101         platform_device_register(&smc91x_device);
1102
1103         raumfeld_audio_init();
1104         raumfeld_common_init();
1105 }
1106
1107 static void __init __maybe_unused raumfeld_speaker_init(void)
1108 {
1109         pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_speaker_pin_config));
1110         spi_register_board_info(ARRAY_AND_SIZE(speaker_spi_devices));
1111         i2c_register_board_info(0, &raumfeld_connector_i2c_board_info, 1);
1112
1113         platform_device_register(&smc91x_device);
1114
1115         gpiod_add_lookup_table(&raumfeld_rotary_gpios_table);
1116         device_add_properties(&rotary_encoder_device.dev,
1117                               raumfeld_rotary_properties);
1118         platform_device_register(&rotary_encoder_device);
1119
1120         raumfeld_audio_init();
1121         raumfeld_common_init();
1122 }
1123
1124 /* physical memory regions */
1125 #define RAUMFELD_SDRAM_BASE     0xa0000000      /* SDRAM region */
1126
1127 #ifdef CONFIG_MACH_RAUMFELD_RC
1128 MACHINE_START(RAUMFELD_RC, "Raumfeld Controller")
1129         .atag_offset    = 0x100,
1130         .init_machine   = raumfeld_controller_init,
1131         .map_io         = pxa3xx_map_io,
1132         .nr_irqs        = PXA_NR_IRQS,
1133         .init_irq       = pxa3xx_init_irq,
1134         .handle_irq     = pxa3xx_handle_irq,
1135         .init_time      = pxa_timer_init,
1136         .restart        = pxa_restart,
1137 MACHINE_END
1138 #endif
1139
1140 #ifdef CONFIG_MACH_RAUMFELD_CONNECTOR
1141 MACHINE_START(RAUMFELD_CONNECTOR, "Raumfeld Connector")
1142         .atag_offset    = 0x100,
1143         .init_machine   = raumfeld_connector_init,
1144         .map_io         = pxa3xx_map_io,
1145         .nr_irqs        = PXA_NR_IRQS,
1146         .init_irq       = pxa3xx_init_irq,
1147         .handle_irq     = pxa3xx_handle_irq,
1148         .init_time      = pxa_timer_init,
1149         .restart        = pxa_restart,
1150 MACHINE_END
1151 #endif
1152
1153 #ifdef CONFIG_MACH_RAUMFELD_SPEAKER
1154 MACHINE_START(RAUMFELD_SPEAKER, "Raumfeld Speaker")
1155         .atag_offset    = 0x100,
1156         .init_machine   = raumfeld_speaker_init,
1157         .map_io         = pxa3xx_map_io,
1158         .nr_irqs        = PXA_NR_IRQS,
1159         .init_irq       = pxa3xx_init_irq,
1160         .handle_irq     = pxa3xx_handle_irq,
1161         .init_time      = pxa_timer_init,
1162         .restart        = pxa_restart,
1163 MACHINE_END
1164 #endif