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/input/eeti_ts.h>
  30 #include <linux/leds.h>
  31 #include <linux/w1-gpio.h>
  32 #include <linux/sched.h>
  33 #include <linux/pwm.h>
  34 #include <linux/pwm_backlight.h>
  35 #include <linux/i2c.h>
  36 #include <linux/i2c/pxa-i2c.h>
  37 #include <linux/spi/spi.h>
  38 #include <linux/spi/spi_gpio.h>
  39 #include <linux/lis3lv02d.h>
  40 #include <linux/pda_power.h>
  41 #include <linux/power_supply.h>
  42 #include <linux/regulator/max8660.h>
  43 #include <linux/regulator/machine.h>
  44 #include <linux/regulator/fixed.h>
  45 #include <linux/regulator/consumer.h>
  46 #include <linux/delay.h>
  47
  48 #include <asm/system_info.h>
  49
  50 #include <asm/mach-types.h>
  51 #include <asm/mach/arch.h>
  52
  53 #include "pxa300.h"
  54 #include <linux/platform_data/usb-ohci-pxa27x.h>
  55 #include <linux/platform_data/video-pxafb.h>
  56 #include <linux/platform_data/mmc-pxamci.h>
  57 #include <linux/platform_data/mtd-nand-pxa3xx.h>
  58
  59 #include "generic.h"
  60 #include "devices.h"
  61
  62 /* common GPIO  definitions */
  63
  64 /* inputs */
  65 #define GPIO_ON_OFF             (14)
  66 #define GPIO_VOLENC_A           (19)
  67 #define GPIO_VOLENC_B           (20)
  68 #define GPIO_CHARGE_DONE        (23)
  69 #define GPIO_CHARGE_IND         (27)
  70 #define GPIO_TOUCH_IRQ          (32)
  71 #define GPIO_ETH_IRQ            (40)
  72 #define GPIO_SPI_MISO           (98)
  73 #define GPIO_ACCEL_IRQ          (104)
  74 #define GPIO_RESCUE_BOOT        (115)
  75 #define GPIO_DOCK_DETECT        (116)
  76 #define GPIO_KEY1               (117)
  77 #define GPIO_KEY2               (118)
  78 #define GPIO_KEY3               (119)
  79 #define GPIO_CHARGE_USB_OK      (112)
  80 #define GPIO_CHARGE_DC_OK       (101)
  81 #define GPIO_CHARGE_USB_SUSP    (102)
  82
  83 /* outputs */
  84 #define GPIO_SHUTDOWN_SUPPLY    (16)
  85 #define GPIO_SHUTDOWN_BATT      (18)
  86 #define GPIO_CHRG_PEN2          (31)
  87 #define GPIO_TFT_VA_EN          (33)
  88 #define GPIO_SPDIF_CS           (34)
  89 #define GPIO_LED2               (35)
  90 #define GPIO_LED1               (36)
  91 #define GPIO_SPDIF_RESET        (38)
  92 #define GPIO_SPI_CLK            (95)
  93 #define GPIO_MCLK_DAC_CS        (96)
  94 #define GPIO_SPI_MOSI           (97)
  95 #define GPIO_W1_PULLUP_ENABLE   (105)
  96 #define GPIO_DISPLAY_ENABLE     (106)
  97 #define GPIO_MCLK_RESET         (111)
  98 #define GPIO_W2W_RESET          (113)
  99 #define GPIO_W2W_PDN            (114)
 100 #define GPIO_CODEC_RESET        (120)
 101 #define GPIO_AUDIO_VA_ENABLE    (124)
 102 #define GPIO_ACCEL_CS           (125)
 103 #define GPIO_ONE_WIRE           (126)
 104
 105 /*
 106  * GPIO configurations
 107  */
 108 static mfp_cfg_t raumfeld_controller_pin_config[] __initdata = {
 109         /* UART1 */
 110         GPIO77_UART1_RXD,
 111         GPIO78_UART1_TXD,
 112         GPIO79_UART1_CTS,
 113         GPIO81_UART1_DSR,
 114         GPIO83_UART1_DTR,
 115         GPIO84_UART1_RTS,
 116
 117         /* UART3 */
 118         GPIO110_UART3_RXD,
 119
 120         /* USB Host */
 121         GPIO0_2_USBH_PEN,
 122         GPIO1_2_USBH_PWR,
 123
 124         /* I2C */
 125         GPIO21_I2C_SCL | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
 126         GPIO22_I2C_SDA | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
 127
 128         /* SPI */
 129         GPIO34_GPIO,    /* SPDIF_CS */
 130         GPIO96_GPIO,    /* MCLK_CS */
 131         GPIO125_GPIO,   /* ACCEL_CS */
 132
 133         /* MMC */
 134         GPIO3_MMC1_DAT0,
 135         GPIO4_MMC1_DAT1,
 136         GPIO5_MMC1_DAT2,
 137         GPIO6_MMC1_DAT3,
 138         GPIO7_MMC1_CLK,
 139         GPIO8_MMC1_CMD,
 140
 141         /* One-wire */
 142         GPIO126_GPIO | MFP_LPM_FLOAT,
 143         GPIO105_GPIO | MFP_PULL_LOW | MFP_LPM_PULL_LOW,
 144
 145         /* CHRG_USB_OK */
 146         GPIO101_GPIO | MFP_PULL_HIGH,
 147         /* CHRG_USB_OK */
 148         GPIO112_GPIO | MFP_PULL_HIGH,
 149         /* CHRG_USB_SUSP */
 150         GPIO102_GPIO,
 151         /* DISPLAY_ENABLE */
 152         GPIO106_GPIO,
 153         /* DOCK_DETECT */
 154         GPIO116_GPIO | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
 155
 156         /* LCD */
 157         GPIO54_LCD_LDD_0,
 158         GPIO55_LCD_LDD_1,
 159         GPIO56_LCD_LDD_2,
 160         GPIO57_LCD_LDD_3,
 161         GPIO58_LCD_LDD_4,
 162         GPIO59_LCD_LDD_5,
 163         GPIO60_LCD_LDD_6,
 164         GPIO61_LCD_LDD_7,
 165         GPIO62_LCD_LDD_8,
 166         GPIO63_LCD_LDD_9,
 167         GPIO64_LCD_LDD_10,
 168         GPIO65_LCD_LDD_11,
 169         GPIO66_LCD_LDD_12,
 170         GPIO67_LCD_LDD_13,
 171         GPIO68_LCD_LDD_14,
 172         GPIO69_LCD_LDD_15,
 173         GPIO70_LCD_LDD_16,
 174         GPIO71_LCD_LDD_17,
 175         GPIO72_LCD_FCLK,
 176         GPIO73_LCD_LCLK,
 177         GPIO74_LCD_PCLK,
 178         GPIO75_LCD_BIAS,
 179 };
 180
 181 static mfp_cfg_t raumfeld_connector_pin_config[] __initdata = {
 182         /* UART1 */
 183         GPIO77_UART1_RXD,
 184         GPIO78_UART1_TXD,
 185         GPIO79_UART1_CTS,
 186         GPIO81_UART1_DSR,
 187         GPIO83_UART1_DTR,
 188         GPIO84_UART1_RTS,
 189
 190         /* UART3 */
 191         GPIO110_UART3_RXD,
 192
 193         /* USB Host */
 194         GPIO0_2_USBH_PEN,
 195         GPIO1_2_USBH_PWR,
 196
 197         /* I2C */
 198         GPIO21_I2C_SCL | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
 199         GPIO22_I2C_SDA | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
 200
 201         /* SPI */
 202         GPIO34_GPIO,    /* SPDIF_CS */
 203         GPIO96_GPIO,    /* MCLK_CS */
 204         GPIO125_GPIO,   /* ACCEL_CS */
 205
 206         /* MMC */
 207         GPIO3_MMC1_DAT0,
 208         GPIO4_MMC1_DAT1,
 209         GPIO5_MMC1_DAT2,
 210         GPIO6_MMC1_DAT3,
 211         GPIO7_MMC1_CLK,
 212         GPIO8_MMC1_CMD,
 213
 214         /* Ethernet */
 215         GPIO1_nCS2,                     /* CS */
 216         GPIO40_GPIO | MFP_PULL_HIGH,    /* IRQ */
 217
 218         /* SSP for I2S */
 219         GPIO85_SSP1_SCLK,
 220         GPIO89_SSP1_EXTCLK,
 221         GPIO86_SSP1_FRM,
 222         GPIO87_SSP1_TXD,
 223         GPIO88_SSP1_RXD,
 224         GPIO90_SSP1_SYSCLK,
 225
 226         /* SSP2 for S/PDIF */
 227         GPIO25_SSP2_SCLK,
 228         GPIO26_SSP2_FRM,
 229         GPIO27_SSP2_TXD,
 230         GPIO29_SSP2_EXTCLK,
 231
 232         /* LEDs */
 233         GPIO35_GPIO | MFP_LPM_PULL_LOW,
 234         GPIO36_GPIO | MFP_LPM_DRIVE_HIGH,
 235 };
 236
 237 static mfp_cfg_t raumfeld_speaker_pin_config[] __initdata = {
 238         /* UART1 */
 239         GPIO77_UART1_RXD,
 240         GPIO78_UART1_TXD,
 241         GPIO79_UART1_CTS,
 242         GPIO81_UART1_DSR,
 243         GPIO83_UART1_DTR,
 244         GPIO84_UART1_RTS,
 245
 246         /* UART3 */
 247         GPIO110_UART3_RXD,
 248
 249         /* USB Host */
 250         GPIO0_2_USBH_PEN,
 251         GPIO1_2_USBH_PWR,
 252
 253         /* I2C */
 254         GPIO21_I2C_SCL | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
 255         GPIO22_I2C_SDA | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
 256
 257         /* SPI */
 258         GPIO34_GPIO,    /* SPDIF_CS */
 259         GPIO96_GPIO,    /* MCLK_CS */
 260         GPIO125_GPIO,   /* ACCEL_CS */
 261
 262         /* MMC */
 263         GPIO3_MMC1_DAT0,
 264         GPIO4_MMC1_DAT1,
 265         GPIO5_MMC1_DAT2,
 266         GPIO6_MMC1_DAT3,
 267         GPIO7_MMC1_CLK,
 268         GPIO8_MMC1_CMD,
 269
 270         /* Ethernet */
 271         GPIO1_nCS2,                     /* CS */
 272         GPIO40_GPIO | MFP_PULL_HIGH,    /* IRQ */
 273
 274         /* SSP for I2S */
 275         GPIO85_SSP1_SCLK,
 276         GPIO89_SSP1_EXTCLK,
 277         GPIO86_SSP1_FRM,
 278         GPIO87_SSP1_TXD,
 279         GPIO88_SSP1_RXD,
 280         GPIO90_SSP1_SYSCLK,
 281
 282         /* LEDs */
 283         GPIO35_GPIO | MFP_LPM_PULL_LOW,
 284         GPIO36_GPIO | MFP_LPM_DRIVE_HIGH,
 285 };
 286
 287 /*
 288  * SMSC LAN9220 Ethernet
 289  */
 290
 291 static struct resource smc91x_resources[] = {
 292         {
 293                 .start  = PXA3xx_CS2_PHYS,
 294                 .end    = PXA3xx_CS2_PHYS + 0xfffff,
 295                 .flags  = IORESOURCE_MEM,
 296         },
 297         {
 298                 .start  = PXA_GPIO_TO_IRQ(GPIO_ETH_IRQ),
 299                 .end    = PXA_GPIO_TO_IRQ(GPIO_ETH_IRQ),
 300                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
 301         }
 302 };
 303
 304 static struct smsc911x_platform_config raumfeld_smsc911x_config = {
 305         .phy_interface  = PHY_INTERFACE_MODE_MII,
 306         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 307         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
 308         .flags          = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
 309 };
 310
 311 static struct platform_device smc91x_device = {
 312         .name           = "smsc911x",
 313         .id             = -1,
 314         .num_resources  = ARRAY_SIZE(smc91x_resources),
 315         .resource       = smc91x_resources,
 316         .dev            = {
 317                 .platform_data = &raumfeld_smsc911x_config,
 318         }
 319 };
 320
 321 /**
 322  * NAND
 323  */
 324
 325 static struct mtd_partition raumfeld_nand_partitions[] = {
 326         {
 327                 .name           = "Bootloader",
 328                 .offset         = 0,
 329                 .size           = 0xa0000,
 330                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
 331         },
 332         {
 333                 .name           = "BootloaderEnvironment",
 334                 .offset         = 0xa0000,
 335                 .size           = 0x20000,
 336         },
 337         {
 338                 .name           = "BootloaderSplashScreen",
 339                 .offset         = 0xc0000,
 340                 .size           = 0x60000,
 341         },
 342         {
 343                 .name           = "UBI",
 344                 .offset         = 0x120000,
 345                 .size           = MTDPART_SIZ_FULL,
 346         },
 347 };
 348
 349 static struct pxa3xx_nand_platform_data raumfeld_nand_info = {
 350         .enable_arbiter = 1,
 351         .keep_config    = 1,
 352         .num_cs         = 1,
 353         .parts[0]       = raumfeld_nand_partitions,
 354         .nr_parts[0]    = ARRAY_SIZE(raumfeld_nand_partitions),
 355 };
 356
 357 /**
 358  * USB (OHCI) support
 359  */
 360
 361 static struct pxaohci_platform_data raumfeld_ohci_info = {
 362         .port_mode      = PMM_GLOBAL_MODE,
 363         .flags          = ENABLE_PORT1,
 364 };
 365
 366 /**
 367  * Rotary encoder input device
 368  */
 369
 370 static struct gpiod_lookup_table raumfeld_rotary_gpios_table = {
 371         .dev_id = "rotary-encoder.0",
 372         .table = {
 373                 GPIO_LOOKUP_IDX("gpio-0",
 374                                 GPIO_VOLENC_A, NULL, 0, GPIO_ACTIVE_LOW),
 375                 GPIO_LOOKUP_IDX("gpio-0",
 376                                 GPIO_VOLENC_B, NULL, 1, GPIO_ACTIVE_HIGH),
 377                 { },
 378         },
 379 };
 380
 381 static u32 raumfeld_rotary_encoder_steps = 24;
 382 static u32 raumfeld_rotary_encoder_axis = REL_X;
 383 static u32 raumfeld_rotary_encoder_relative_axis = 1;
 384
 385 static struct property_entry raumfeld_rotary_properties[] = {
 386         { "rotary-encoder,steps-per-period",
 387                 DEV_PROP_U32, 1, &raumfeld_rotary_encoder_steps, },
 388         { "linux,axis",
 389                 DEV_PROP_U32, 1, &raumfeld_rotary_encoder_axis, },
 390         { "rotary-encoder,relative_axis",
 391                 DEV_PROP_U32, 1, &raumfeld_rotary_encoder_relative_axis, },
 392         { NULL }
 393 };
 394
 395 static struct property_set raumfeld_rotary_property_set = {
 396         .properties = raumfeld_rotary_properties,
 397 };
 398
 399 static struct platform_device rotary_encoder_device = {
 400         .name           = "rotary-encoder",
 401         .id             = 0,
 402 };
 403
 404 /**
 405  * GPIO buttons
 406  */
 407
 408 static struct gpio_keys_button gpio_keys_button[] = {
 409         {
 410                 .code                   = KEY_F1,
 411                 .type                   = EV_KEY,
 412                 .gpio                   = GPIO_KEY1,
 413                 .active_low             = 1,
 414                 .wakeup                 = 0,
 415                 .debounce_interval      = 5, /* ms */
 416                 .desc                   = "Button 1",
 417         },
 418         {
 419                 .code                   = KEY_F2,
 420                 .type                   = EV_KEY,
 421                 .gpio                   = GPIO_KEY2,
 422                 .active_low             = 1,
 423                 .wakeup                 = 0,
 424                 .debounce_interval      = 5, /* ms */
 425                 .desc                   = "Button 2",
 426         },
 427         {
 428                 .code                   = KEY_F3,
 429                 .type                   = EV_KEY,
 430                 .gpio                   = GPIO_KEY3,
 431                 .active_low             = 1,
 432                 .wakeup                 = 0,
 433                 .debounce_interval      = 5, /* ms */
 434                 .desc                   = "Button 3",
 435         },
 436         {
 437                 .code                   = KEY_F4,
 438                 .type                   = EV_KEY,
 439                 .gpio                   = GPIO_RESCUE_BOOT,
 440                 .active_low             = 0,
 441                 .wakeup                 = 0,
 442                 .debounce_interval      = 5, /* ms */
 443                 .desc                   = "rescue boot button",
 444         },
 445         {
 446                 .code                   = KEY_F5,
 447                 .type                   = EV_KEY,
 448                 .gpio                   = GPIO_DOCK_DETECT,
 449                 .active_low             = 1,
 450                 .wakeup                 = 0,
 451                 .debounce_interval      = 5, /* ms */
 452                 .desc                   = "dock detect",
 453         },
 454         {
 455                 .code                   = KEY_F6,
 456                 .type                   = EV_KEY,
 457                 .gpio                   = GPIO_ON_OFF,
 458                 .active_low             = 0,
 459                 .wakeup                 = 0,
 460                 .debounce_interval      = 5, /* ms */
 461                 .desc                   = "on_off button",
 462         },
 463 };
 464
 465 static struct gpio_keys_platform_data gpio_keys_platform_data = {
 466         .buttons        = gpio_keys_button,
 467         .nbuttons       = ARRAY_SIZE(gpio_keys_button),
 468         .rep            = 0,
 469 };
 470
 471 static struct platform_device raumfeld_gpio_keys_device = {
 472         .name   = "gpio-keys",
 473         .id     = -1,
 474         .dev    = {
 475                 .platform_data  = &gpio_keys_platform_data,
 476         }
 477 };
 478
 479 /**
 480  * GPIO LEDs
 481  */
 482
 483 static struct gpio_led raumfeld_leds[] = {
 484         {
 485                 .name           = "raumfeld:1",
 486                 .gpio           = GPIO_LED1,
 487                 .active_low     = 1,
 488                 .default_state  = LEDS_GPIO_DEFSTATE_ON,
 489         },
 490         {
 491                 .name           = "raumfeld:2",
 492                 .gpio           = GPIO_LED2,
 493                 .active_low     = 0,
 494                 .default_state  = LEDS_GPIO_DEFSTATE_OFF,
 495         }
 496 };
 497
 498 static struct gpio_led_platform_data raumfeld_led_platform_data = {
 499         .leds           = raumfeld_leds,
 500         .num_leds       = ARRAY_SIZE(raumfeld_leds),
 501 };
 502
 503 static struct platform_device raumfeld_led_device = {
 504         .name   = "leds-gpio",
 505         .id     = -1,
 506         .dev    = {
 507                 .platform_data = &raumfeld_led_platform_data,
 508         },
 509 };
 510
 511 /**
 512  * One-wire (W1 bus) support
 513  */
 514
 515 static void w1_enable_external_pullup(int enable)
 516 {
 517         gpio_set_value(GPIO_W1_PULLUP_ENABLE, enable);
 518         msleep(100);
 519 }
 520
 521 static struct w1_gpio_platform_data w1_gpio_platform_data = {
 522         .pin                    = GPIO_ONE_WIRE,
 523         .is_open_drain          = 0,
 524         .enable_external_pullup = w1_enable_external_pullup,
 525         .ext_pullup_enable_pin  = -EINVAL,
 526 };
 527
 528 static struct platform_device raumfeld_w1_gpio_device = {
 529         .name   = "w1-gpio",
 530         .dev    = {
 531                 .platform_data = &w1_gpio_platform_data
 532         }
 533 };
 534
 535 static void __init raumfeld_w1_init(void)
 536 {
 537         int ret = gpio_request(GPIO_W1_PULLUP_ENABLE,
 538                                 "W1 external pullup enable");
 539
 540         if (ret < 0)
 541                 pr_warn("Unable to request GPIO_W1_PULLUP_ENABLE\n");
 542         else
 543                 gpio_direction_output(GPIO_W1_PULLUP_ENABLE, 0);
 544
 545         platform_device_register(&raumfeld_w1_gpio_device);
 546 }
 547
 548 /**
 549  * Framebuffer device
 550  */
 551
 552 static struct pwm_lookup raumfeld_pwm_lookup[] = {
 553         PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight", NULL, 10000,
 554                    PWM_POLARITY_NORMAL),
 555 };
 556
 557 /* PWM controlled backlight */
 558 static struct platform_pwm_backlight_data raumfeld_pwm_backlight_data = {
 559         .max_brightness = 100,
 560         .dft_brightness = 100,
 561         .enable_gpio    = -1,
 562 };
 563
 564 static struct platform_device raumfeld_pwm_backlight_device = {
 565         .name   = "pwm-backlight",
 566         .dev    = {
 567                 .parent         = &pxa27x_device_pwm0.dev,
 568                 .platform_data  = &raumfeld_pwm_backlight_data,
 569         }
 570 };
 571
 572 /* LT3593 controlled backlight */
 573 static struct gpio_led raumfeld_lt3593_led = {
 574         .name           = "backlight",
 575         .gpio           = mfp_to_gpio(MFP_PIN_GPIO17),
 576         .default_state  = LEDS_GPIO_DEFSTATE_ON,
 577 };
 578
 579 static struct gpio_led_platform_data raumfeld_lt3593_platform_data = {
 580         .leds           = &raumfeld_lt3593_led,
 581         .num_leds       = 1,
 582 };
 583
 584 static struct platform_device raumfeld_lt3593_device = {
 585         .name   = "leds-lt3593",
 586         .id     = -1,
 587         .dev    = {
 588                 .platform_data = &raumfeld_lt3593_platform_data,
 589         },
 590 };
 591
 592 static struct pxafb_mode_info sharp_lq043t3dx02_mode = {
 593         .pixclock       = 111000,
 594         .xres           = 480,
 595         .yres           = 272,
 596         .bpp            = 16,
 597         .hsync_len      = 41,
 598         .left_margin    = 2,
 599         .right_margin   = 1,
 600         .vsync_len      = 10,
 601         .upper_margin   = 3,
 602         .lower_margin   = 1,
 603         .sync           = 0,
 604 };
 605
 606 static struct pxafb_mach_info raumfeld_sharp_lcd_info = {
 607         .modes          = &sharp_lq043t3dx02_mode,
 608         .num_modes      = 1,
 609         .video_mem_size = 0x400000,
 610         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 611 #ifdef CONFIG_PXA3XX_GCU
 612         .acceleration_enabled = 1,
 613 #endif
 614 };
 615
 616 static void __init raumfeld_lcd_init(void)
 617 {
 618         int ret;
 619
 620         ret = gpio_request(GPIO_TFT_VA_EN, "display VA enable");
 621         if (ret < 0)
 622                 pr_warn("Unable to request GPIO_TFT_VA_EN\n");
 623         else
 624                 gpio_direction_output(GPIO_TFT_VA_EN, 1);
 625
 626         msleep(100);
 627
 628         ret = gpio_request(GPIO_DISPLAY_ENABLE, "display enable");
 629         if (ret < 0)
 630                 pr_warn("Unable to request GPIO_DISPLAY_ENABLE\n");
 631         else
 632                 gpio_direction_output(GPIO_DISPLAY_ENABLE, 1);
 633
 634         /* Hardware revision 2 has the backlight regulator controlled
 635          * by an LT3593, earlier and later devices use PWM for that. */
 636         if ((system_rev & 0xff) == 2) {
 637                 platform_device_register(&raumfeld_lt3593_device);
 638         } else {
 639                 mfp_cfg_t raumfeld_pwm_pin_config = GPIO17_PWM0_OUT;
 640                 pxa3xx_mfp_config(&raumfeld_pwm_pin_config, 1);
 641                 pwm_add_table(raumfeld_pwm_lookup,
 642                               ARRAY_SIZE(raumfeld_pwm_lookup));
 643                 platform_device_register(&raumfeld_pwm_backlight_device);
 644         }
 645
 646         pxa_set_fb_info(NULL, &raumfeld_sharp_lcd_info);
 647         platform_device_register(&pxa3xx_device_gcu);
 648 }
 649
 650 /**
 651  * SPI devices
 652  */
 653
 654 static struct spi_gpio_platform_data raumfeld_spi_platform_data = {
 655         .sck            = GPIO_SPI_CLK,
 656         .mosi           = GPIO_SPI_MOSI,
 657         .miso           = GPIO_SPI_MISO,
 658         .num_chipselect = 3,
 659 };
 660
 661 static struct platform_device raumfeld_spi_device = {
 662         .name   = "spi_gpio",
 663         .id     = 0,
 664         .dev    = {
 665                 .platform_data  = &raumfeld_spi_platform_data,
 666         }
 667 };
 668
 669 static struct lis3lv02d_platform_data lis3_pdata = {
 670         .click_flags    = LIS3_CLICK_SINGLE_X |
 671                           LIS3_CLICK_SINGLE_Y |
 672                           LIS3_CLICK_SINGLE_Z,
 673         .irq_cfg        = LIS3_IRQ1_CLICK | LIS3_IRQ2_CLICK,
 674         .wakeup_flags   = LIS3_WAKEUP_X_LO | LIS3_WAKEUP_X_HI |
 675                           LIS3_WAKEUP_Y_LO | LIS3_WAKEUP_Y_HI |
 676                           LIS3_WAKEUP_Z_LO | LIS3_WAKEUP_Z_HI,
 677         .wakeup_thresh  = 10,
 678         .click_thresh_x = 10,
 679         .click_thresh_y = 10,
 680         .click_thresh_z = 10,
 681 };
 682
 683 #define SPI_AK4104      \
 684 {                       \
 685         .modalias       = "ak4104-codec",       \
 686         .max_speed_hz   = 10000,                \
 687         .bus_num        = 0,                    \
 688         .chip_select    = 0,                    \
 689         .controller_data = (void *) GPIO_SPDIF_CS,      \
 690 }
 691
 692 #define SPI_LIS3        \
 693 {                       \
 694         .modalias       = "lis3lv02d_spi",      \
 695         .max_speed_hz   = 1000000,              \
 696         .bus_num        = 0,                    \
 697         .chip_select    = 1,                    \
 698         .controller_data = (void *) GPIO_ACCEL_CS,      \
 699         .platform_data  = &lis3_pdata,          \
 700         .irq            = PXA_GPIO_TO_IRQ(GPIO_ACCEL_IRQ),      \
 701 }
 702
 703 #define SPI_DAC7512     \
 704 {       \
 705         .modalias       = "dac7512",            \
 706         .max_speed_hz   = 1000000,              \
 707         .bus_num        = 0,                    \
 708         .chip_select    = 2,                    \
 709         .controller_data = (void *) GPIO_MCLK_DAC_CS,   \
 710 }
 711
 712 static struct spi_board_info connector_spi_devices[] __initdata = {
 713         SPI_AK4104,
 714         SPI_DAC7512,
 715 };
 716
 717 static struct spi_board_info speaker_spi_devices[] __initdata = {
 718         SPI_DAC7512,
 719 };
 720
 721 static struct spi_board_info controller_spi_devices[] __initdata = {
 722         SPI_LIS3,
 723 };
 724
 725 /**
 726  * MMC for Marvell Libertas 8688 via SDIO
 727  */
 728
 729 static int raumfeld_mci_init(struct device *dev, irq_handler_t isr, void *data)
 730 {
 731         gpio_set_value(GPIO_W2W_RESET, 1);
 732         gpio_set_value(GPIO_W2W_PDN, 1);
 733
 734         return 0;
 735 }
 736
 737 static void raumfeld_mci_exit(struct device *dev, void *data)
 738 {
 739         gpio_set_value(GPIO_W2W_RESET, 0);
 740         gpio_set_value(GPIO_W2W_PDN, 0);
 741 }
 742
 743 static struct pxamci_platform_data raumfeld_mci_platform_data = {
 744         .init                   = raumfeld_mci_init,
 745         .exit                   = raumfeld_mci_exit,
 746         .detect_delay_ms        = 200,
 747         .gpio_card_detect       = -1,
 748         .gpio_card_ro           = -1,
 749         .gpio_power             = -1,
 750 };
 751
 752 /*
 753  * External power / charge logic
 754  */
 755
 756 static int power_supply_init(struct device *dev)
 757 {
 758         return 0;
 759 }
 760
 761 static void power_supply_exit(struct device *dev)
 762 {
 763 }
 764
 765 static int raumfeld_is_ac_online(void)
 766 {
 767         return !gpio_get_value(GPIO_CHARGE_DC_OK);
 768 }
 769
 770 static int raumfeld_is_usb_online(void)
 771 {
 772         return 0;
 773 }
 774
 775 static char *raumfeld_power_supplicants[] = { "ds2760-battery.0" };
 776
 777 static void raumfeld_power_signal_charged(void)
 778 {
 779         struct power_supply *psy =
 780                 power_supply_get_by_name(raumfeld_power_supplicants[0]);
 781
 782         if (psy) {
 783                 power_supply_set_battery_charged(psy);
 784                 power_supply_put(psy);
 785         }
 786 }
 787
 788 static int raumfeld_power_resume(void)
 789 {
 790         /* check if GPIO_CHARGE_DONE went low while we were sleeping */
 791         if (!gpio_get_value(GPIO_CHARGE_DONE))
 792                 raumfeld_power_signal_charged();
 793
 794         return 0;
 795 }
 796
 797 static struct pda_power_pdata power_supply_info = {
 798         .init                   = power_supply_init,
 799         .is_ac_online           = raumfeld_is_ac_online,
 800         .is_usb_online          = raumfeld_is_usb_online,
 801         .exit                   = power_supply_exit,
 802         .supplied_to            = raumfeld_power_supplicants,
 803         .num_supplicants        = ARRAY_SIZE(raumfeld_power_supplicants),
 804         .resume                 = raumfeld_power_resume,
 805 };
 806
 807 static struct resource power_supply_resources[] = {
 808         {
 809                 .name  = "ac",
 810                 .flags = IORESOURCE_IRQ |
 811                          IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE,
 812                 .start = GPIO_CHARGE_DC_OK,
 813                 .end   = GPIO_CHARGE_DC_OK,
 814         },
 815 };
 816
 817 static irqreturn_t charge_done_irq(int irq, void *dev_id)
 818 {
 819         raumfeld_power_signal_charged();
 820         return IRQ_HANDLED;
 821 }
 822
 823 static struct platform_device raumfeld_power_supply = {
 824         .name = "pda-power",
 825         .id   = -1,
 826         .dev  = {
 827                 .platform_data = &power_supply_info,
 828         },
 829         .resource      = power_supply_resources,
 830         .num_resources = ARRAY_SIZE(power_supply_resources),
 831 };
 832
 833 static void __init raumfeld_power_init(void)
 834 {
 835         int ret;
 836
 837         /* Set PEN2 high to enable maximum charge current */
 838         ret = gpio_request(GPIO_CHRG_PEN2, "CHRG_PEN2");
 839         if (ret < 0)
 840                 pr_warn("Unable to request GPIO_CHRG_PEN2\n");
 841         else
 842                 gpio_direction_output(GPIO_CHRG_PEN2, 1);
 843
 844         ret = gpio_request(GPIO_CHARGE_DC_OK, "CABLE_DC_OK");
 845         if (ret < 0)
 846                 pr_warn("Unable to request GPIO_CHARGE_DC_OK\n");
 847
 848         ret = gpio_request(GPIO_CHARGE_USB_SUSP, "CHARGE_USB_SUSP");
 849         if (ret < 0)
 850                 pr_warn("Unable to request GPIO_CHARGE_USB_SUSP\n");
 851         else
 852                 gpio_direction_output(GPIO_CHARGE_USB_SUSP, 0);
 853
 854         power_supply_resources[0].start = gpio_to_irq(GPIO_CHARGE_DC_OK);
 855         power_supply_resources[0].end = gpio_to_irq(GPIO_CHARGE_DC_OK);
 856
 857         ret = request_irq(gpio_to_irq(GPIO_CHARGE_DONE),
 858                         &charge_done_irq, IORESOURCE_IRQ_LOWEDGE,
 859                         "charge_done", NULL);
 860
 861         if (ret < 0)
 862                 printk(KERN_ERR "%s: unable to register irq %d\n", __func__,
 863                         GPIO_CHARGE_DONE);
 864         else
 865                 platform_device_register(&raumfeld_power_supply);
 866 }
 867
 868 /* Fixed regulator for AUDIO_VA, 0-0048 maps to the cs4270 codec device */
 869
 870 static struct regulator_consumer_supply audio_va_consumer_supply =
 871         REGULATOR_SUPPLY("va", "0-0048");
 872
 873 static struct regulator_init_data audio_va_initdata = {
 874         .consumer_supplies = &audio_va_consumer_supply,
 875         .num_consumer_supplies = 1,
 876         .constraints = {
 877                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
 878         },
 879 };
 880
 881 static struct fixed_voltage_config audio_va_config = {
 882         .supply_name            = "audio_va",
 883         .microvolts             = 5000000,
 884         .gpio                   = GPIO_AUDIO_VA_ENABLE,
 885         .enable_high            = 1,
 886         .enabled_at_boot        = 0,
 887         .init_data              = &audio_va_initdata,
 888 };
 889
 890 static struct platform_device audio_va_device = {
 891         .name   = "reg-fixed-voltage",
 892         .id     = 0,
 893         .dev    = {
 894                 .platform_data = &audio_va_config,
 895         },
 896 };
 897
 898 /* Dummy supplies for Codec's VD/VLC */
 899
 900 static struct regulator_consumer_supply audio_dummy_supplies[] = {
 901         REGULATOR_SUPPLY("vd", "0-0048"),
 902         REGULATOR_SUPPLY("vlc", "0-0048"),
 903 };
 904
 905 static struct regulator_init_data audio_dummy_initdata = {
 906         .consumer_supplies = audio_dummy_supplies,
 907         .num_consumer_supplies = ARRAY_SIZE(audio_dummy_supplies),
 908         .constraints = {
 909                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
 910         },
 911 };
 912
 913 static struct fixed_voltage_config audio_dummy_config = {
 914         .supply_name            = "audio_vd",
 915         .microvolts             = 3300000,
 916         .gpio                   = -1,
 917         .init_data              = &audio_dummy_initdata,
 918 };
 919
 920 static struct platform_device audio_supply_dummy_device = {
 921         .name   = "reg-fixed-voltage",
 922         .id     = 1,
 923         .dev    = {
 924                 .platform_data = &audio_dummy_config,
 925         },
 926 };
 927
 928 static struct platform_device *audio_regulator_devices[] = {
 929         &audio_va_device,
 930         &audio_supply_dummy_device,
 931 };
 932
 933 /**
 934  * Regulator support via MAX8660
 935  */
 936
 937 static struct regulator_consumer_supply vcc_mmc_supply =
 938         REGULATOR_SUPPLY("vmmc", "pxa2xx-mci.0");
 939
 940 static struct regulator_init_data vcc_mmc_init_data = {
 941         .constraints = {
 942                 .min_uV                 = 3300000,
 943                 .max_uV                 = 3300000,
 944                 .valid_modes_mask       = REGULATOR_MODE_NORMAL,
 945                 .valid_ops_mask         = REGULATOR_CHANGE_STATUS |
 946                                           REGULATOR_CHANGE_VOLTAGE |
 947                                           REGULATOR_CHANGE_MODE,
 948         },
 949         .consumer_supplies = &vcc_mmc_supply,
 950         .num_consumer_supplies = 1,
 951 };
 952
 953 static struct max8660_subdev_data max8660_v6_subdev_data = {
 954         .id             = MAX8660_V6,
 955         .name           = "vmmc",
 956         .platform_data  = &vcc_mmc_init_data,
 957 };
 958
 959 static struct max8660_platform_data max8660_pdata = {
 960         .subdevs = &max8660_v6_subdev_data,
 961         .num_subdevs = 1,
 962 };
 963
 964 /**
 965  * I2C devices
 966  */
 967
 968 static struct i2c_board_info raumfeld_pwri2c_board_info = {
 969         .type           = "max8660",
 970         .addr           = 0x34,
 971         .platform_data  = &max8660_pdata,
 972 };
 973
 974 static struct i2c_board_info raumfeld_connector_i2c_board_info __initdata = {
 975         .type   = "cs4270",
 976         .addr   = 0x48,
 977 };
 978
 979 static struct eeti_ts_platform_data eeti_ts_pdata = {
 980         .irq_active_high = 1,
 981         .irq_gpio = GPIO_TOUCH_IRQ,
 982 };
 983
 984 static struct i2c_board_info raumfeld_controller_i2c_board_info __initdata = {
 985         .type   = "eeti_ts",
 986         .addr   = 0x0a,
 987         .platform_data = &eeti_ts_pdata,
 988 };
 989
 990 static struct platform_device *raumfeld_common_devices[] = {
 991         &raumfeld_gpio_keys_device,
 992         &raumfeld_led_device,
 993         &raumfeld_spi_device,
 994 };
 995
 996 static void __init raumfeld_audio_init(void)
 997 {
 998         int ret;
 999
1000         ret = gpio_request(GPIO_CODEC_RESET, "cs4270 reset");
1001         if (ret < 0)
1002                 pr_warn("unable to request GPIO_CODEC_RESET\n");
1003         else
1004                 gpio_direction_output(GPIO_CODEC_RESET, 1);
1005
1006         ret = gpio_request(GPIO_SPDIF_RESET, "ak4104 s/pdif reset");
1007         if (ret < 0)
1008                 pr_warn("unable to request GPIO_SPDIF_RESET\n");
1009         else
1010                 gpio_direction_output(GPIO_SPDIF_RESET, 1);
1011
1012         ret = gpio_request(GPIO_MCLK_RESET, "MCLK reset");
1013         if (ret < 0)
1014                 pr_warn("unable to request GPIO_MCLK_RESET\n");
1015         else
1016                 gpio_direction_output(GPIO_MCLK_RESET, 1);
1017
1018         platform_add_devices(ARRAY_AND_SIZE(audio_regulator_devices));
1019 }
1020
1021 static void __init raumfeld_common_init(void)
1022 {
1023         int ret;
1024
1025         /* The on/off button polarity has changed after revision 1 */
1026         if ((system_rev & 0xff) > 1) {
1027                 int i;
1028
1029                 for (i = 0; i < ARRAY_SIZE(gpio_keys_button); i++)
1030                         if (!strcmp(gpio_keys_button[i].desc, "on_off button"))
1031                                 gpio_keys_button[i].active_low = 1;
1032         }
1033
1034         enable_irq_wake(IRQ_WAKEUP0);
1035
1036         pxa3xx_set_nand_info(&raumfeld_nand_info);
1037         pxa3xx_set_i2c_power_info(NULL);
1038         pxa_set_ohci_info(&raumfeld_ohci_info);
1039         pxa_set_mci_info(&raumfeld_mci_platform_data);
1040         pxa_set_i2c_info(NULL);
1041         pxa_set_ffuart_info(NULL);
1042
1043         ret = gpio_request(GPIO_W2W_RESET, "Wi2Wi reset");
1044         if (ret < 0)
1045                 pr_warn("Unable to request GPIO_W2W_RESET\n");
1046         else
1047                 gpio_direction_output(GPIO_W2W_RESET, 0);
1048
1049         ret = gpio_request(GPIO_W2W_PDN, "Wi2Wi powerup");
1050         if (ret < 0)
1051                 pr_warn("Unable to request GPIO_W2W_PDN\n");
1052         else
1053                 gpio_direction_output(GPIO_W2W_PDN, 0);
1054
1055         /* this can be used to switch off the device */
1056         ret = gpio_request(GPIO_SHUTDOWN_SUPPLY, "supply shutdown");
1057         if (ret < 0)
1058                 pr_warn("Unable to request GPIO_SHUTDOWN_SUPPLY\n");
1059         else
1060                 gpio_direction_output(GPIO_SHUTDOWN_SUPPLY, 0);
1061
1062         platform_add_devices(ARRAY_AND_SIZE(raumfeld_common_devices));
1063         i2c_register_board_info(1, &raumfeld_pwri2c_board_info, 1);
1064 }
1065
1066 static void __init __maybe_unused raumfeld_controller_init(void)
1067 {
1068         int ret;
1069
1070         pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_controller_pin_config));
1071
1072         gpiod_add_lookup_table(&raumfeld_rotary_gpios_table);
1073         device_add_property_set(&rotary_encoder_device.dev,
1074                                 &raumfeld_rotary_property_set);
1075         platform_device_register(&rotary_encoder_device);
1076
1077         spi_register_board_info(ARRAY_AND_SIZE(controller_spi_devices));
1078         i2c_register_board_info(0, &raumfeld_controller_i2c_board_info, 1);
1079
1080         ret = gpio_request(GPIO_SHUTDOWN_BATT, "battery shutdown");
1081         if (ret < 0)
1082                 pr_warn("Unable to request GPIO_SHUTDOWN_BATT\n");
1083         else
1084                 gpio_direction_output(GPIO_SHUTDOWN_BATT, 0);
1085
1086         raumfeld_common_init();
1087         raumfeld_power_init();
1088         raumfeld_lcd_init();
1089         raumfeld_w1_init();
1090 }
1091
1092 static void __init __maybe_unused raumfeld_connector_init(void)
1093 {
1094         pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_connector_pin_config));
1095         spi_register_board_info(ARRAY_AND_SIZE(connector_spi_devices));
1096         i2c_register_board_info(0, &raumfeld_connector_i2c_board_info, 1);
1097
1098         platform_device_register(&smc91x_device);
1099
1100         raumfeld_audio_init();
1101         raumfeld_common_init();
1102 }
1103
1104 static void __init __maybe_unused raumfeld_speaker_init(void)
1105 {
1106         pxa3xx_mfp_config(ARRAY_AND_SIZE(raumfeld_speaker_pin_config));
1107         spi_register_board_info(ARRAY_AND_SIZE(speaker_spi_devices));
1108         i2c_register_board_info(0, &raumfeld_connector_i2c_board_info, 1);
1109
1110         platform_device_register(&smc91x_device);
1111
1112         gpiod_add_lookup_table(&raumfeld_rotary_gpios_table);
1113         device_add_property_set(&rotary_encoder_device.dev,
1114                                 &raumfeld_rotary_property_set);
1115         platform_device_register(&rotary_encoder_device);
1116
1117         raumfeld_audio_init();
1118         raumfeld_common_init();
1119 }
1120
1121 /* physical memory regions */
1122 #define RAUMFELD_SDRAM_BASE     0xa0000000      /* SDRAM region */
1123
1124 #ifdef CONFIG_MACH_RAUMFELD_RC
1125 MACHINE_START(RAUMFELD_RC, "Raumfeld Controller")
1126         .atag_offset    = 0x100,
1127         .init_machine   = raumfeld_controller_init,
1128         .map_io         = pxa3xx_map_io,
1129         .nr_irqs        = PXA_NR_IRQS,
1130         .init_irq       = pxa3xx_init_irq,
1131         .handle_irq     = pxa3xx_handle_irq,
1132         .init_time      = pxa_timer_init,
1133         .restart        = pxa_restart,
1134 MACHINE_END
1135 #endif
1136
1137 #ifdef CONFIG_MACH_RAUMFELD_CONNECTOR
1138 MACHINE_START(RAUMFELD_CONNECTOR, "Raumfeld Connector")
1139         .atag_offset    = 0x100,
1140         .init_machine   = raumfeld_connector_init,
1141         .map_io         = pxa3xx_map_io,
1142         .nr_irqs        = PXA_NR_IRQS,
1143         .init_irq       = pxa3xx_init_irq,
1144         .handle_irq     = pxa3xx_handle_irq,
1145         .init_time      = pxa_timer_init,
1146         .restart        = pxa_restart,
1147 MACHINE_END
1148 #endif
1149
1150 #ifdef CONFIG_MACH_RAUMFELD_SPEAKER
1151 MACHINE_START(RAUMFELD_SPEAKER, "Raumfeld Speaker")
1152         .atag_offset    = 0x100,
1153         .init_machine   = raumfeld_speaker_init,
1154         .map_io         = pxa3xx_map_io,
1155         .nr_irqs        = PXA_NR_IRQS,
1156         .init_irq       = pxa3xx_init_irq,
1157         .handle_irq     = pxa3xx_handle_irq,
1158         .init_time      = pxa_timer_init,
1159         .restart        = pxa_restart,
1160 MACHINE_END
1161 #endif