linux/arch/arm/mach-imx/mach-mx31_3ds.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 *  Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
   4 */
   5
   6#include <linux/delay.h>
   7#include <linux/dma-mapping.h>
   8#include <linux/types.h>
   9#include <linux/init.h>
  10#include <linux/clk.h>
  11#include <linux/irq.h>
  12#include <linux/gpio.h>
  13#include <linux/platform_device.h>
  14#include <linux/mfd/mc13783.h>
  15#include <linux/spi/spi.h>
  16#include <linux/spi/l4f00242t03.h>
  17#include <linux/regulator/machine.h>
  18#include <linux/usb/otg.h>
  19#include <linux/usb/ulpi.h>
  20
  21#include <asm/mach-types.h>
  22#include <asm/mach/arch.h>
  23#include <asm/mach/time.h>
  24#include <asm/memory.h>
  25#include <asm/mach/map.h>
  26
  27#include "3ds_debugboard.h"
  28#include "common.h"
  29#include "devices-imx31.h"
  30#include "ehci.h"
  31#include "hardware.h"
  32#include "iomux-mx3.h"
  33#include "ulpi.h"
  34
  35static int mx31_3ds_pins[] = {
  36        /* UART1 */
  37        MX31_PIN_CTS1__CTS1,
  38        MX31_PIN_RTS1__RTS1,
  39        MX31_PIN_TXD1__TXD1,
  40        MX31_PIN_RXD1__RXD1,
  41        IOMUX_MODE(MX31_PIN_GPIO1_1, IOMUX_CONFIG_GPIO),
  42        /*SPI0*/
  43        IOMUX_MODE(MX31_PIN_DSR_DCE1, IOMUX_CONFIG_ALT1),
  44        IOMUX_MODE(MX31_PIN_RI_DCE1, IOMUX_CONFIG_ALT1),
  45        /* SPI 1 */
  46        MX31_PIN_CSPI2_SCLK__SCLK,
  47        MX31_PIN_CSPI2_MOSI__MOSI,
  48        MX31_PIN_CSPI2_MISO__MISO,
  49        MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
  50        MX31_PIN_CSPI2_SS0__SS0,
  51        MX31_PIN_CSPI2_SS2__SS2, /*CS for MC13783 */
  52        /* MC13783 IRQ */
  53        IOMUX_MODE(MX31_PIN_GPIO1_3, IOMUX_CONFIG_GPIO),
  54        /* USB OTG reset */
  55        IOMUX_MODE(MX31_PIN_USB_PWR, IOMUX_CONFIG_GPIO),
  56        /* USB OTG */
  57        MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
  58        MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
  59        MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
  60        MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
  61        MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
  62        MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
  63        MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
  64        MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
  65        MX31_PIN_USBOTG_CLK__USBOTG_CLK,
  66        MX31_PIN_USBOTG_DIR__USBOTG_DIR,
  67        MX31_PIN_USBOTG_NXT__USBOTG_NXT,
  68        MX31_PIN_USBOTG_STP__USBOTG_STP,
  69        /*Keyboard*/
  70        MX31_PIN_KEY_ROW0_KEY_ROW0,
  71        MX31_PIN_KEY_ROW1_KEY_ROW1,
  72        MX31_PIN_KEY_ROW2_KEY_ROW2,
  73        MX31_PIN_KEY_COL0_KEY_COL0,
  74        MX31_PIN_KEY_COL1_KEY_COL1,
  75        MX31_PIN_KEY_COL2_KEY_COL2,
  76        MX31_PIN_KEY_COL3_KEY_COL3,
  77        /* USB Host 2 */
  78        IOMUX_MODE(MX31_PIN_USBH2_CLK, IOMUX_CONFIG_FUNC),
  79        IOMUX_MODE(MX31_PIN_USBH2_DIR, IOMUX_CONFIG_FUNC),
  80        IOMUX_MODE(MX31_PIN_USBH2_NXT, IOMUX_CONFIG_FUNC),
  81        IOMUX_MODE(MX31_PIN_USBH2_STP, IOMUX_CONFIG_FUNC),
  82        IOMUX_MODE(MX31_PIN_USBH2_DATA0, IOMUX_CONFIG_FUNC),
  83        IOMUX_MODE(MX31_PIN_USBH2_DATA1, IOMUX_CONFIG_FUNC),
  84        IOMUX_MODE(MX31_PIN_PC_VS2, IOMUX_CONFIG_ALT1),
  85        IOMUX_MODE(MX31_PIN_PC_BVD1, IOMUX_CONFIG_ALT1),
  86        IOMUX_MODE(MX31_PIN_PC_BVD2, IOMUX_CONFIG_ALT1),
  87        IOMUX_MODE(MX31_PIN_PC_RST, IOMUX_CONFIG_ALT1),
  88        IOMUX_MODE(MX31_PIN_IOIS16, IOMUX_CONFIG_ALT1),
  89        IOMUX_MODE(MX31_PIN_PC_RW_B, IOMUX_CONFIG_ALT1),
  90        /* USB Host2 reset */
  91        IOMUX_MODE(MX31_PIN_USB_BYP, IOMUX_CONFIG_GPIO),
  92        /* I2C1 */
  93        MX31_PIN_I2C_CLK__I2C1_SCL,
  94        MX31_PIN_I2C_DAT__I2C1_SDA,
  95        /* SDHC1 */
  96        MX31_PIN_SD1_DATA3__SD1_DATA3,
  97        MX31_PIN_SD1_DATA2__SD1_DATA2,
  98        MX31_PIN_SD1_DATA1__SD1_DATA1,
  99        MX31_PIN_SD1_DATA0__SD1_DATA0,
 100        MX31_PIN_SD1_CLK__SD1_CLK,
 101        MX31_PIN_SD1_CMD__SD1_CMD,
 102        MX31_PIN_GPIO3_1__GPIO3_1, /* Card detect */
 103        MX31_PIN_GPIO3_0__GPIO3_0, /* OE */
 104        /* Framebuffer */
 105        MX31_PIN_LD0__LD0,
 106        MX31_PIN_LD1__LD1,
 107        MX31_PIN_LD2__LD2,
 108        MX31_PIN_LD3__LD3,
 109        MX31_PIN_LD4__LD4,
 110        MX31_PIN_LD5__LD5,
 111        MX31_PIN_LD6__LD6,
 112        MX31_PIN_LD7__LD7,
 113        MX31_PIN_LD8__LD8,
 114        MX31_PIN_LD9__LD9,
 115        MX31_PIN_LD10__LD10,
 116        MX31_PIN_LD11__LD11,
 117        MX31_PIN_LD12__LD12,
 118        MX31_PIN_LD13__LD13,
 119        MX31_PIN_LD14__LD14,
 120        MX31_PIN_LD15__LD15,
 121        MX31_PIN_LD16__LD16,
 122        MX31_PIN_LD17__LD17,
 123        MX31_PIN_VSYNC3__VSYNC3,
 124        MX31_PIN_HSYNC__HSYNC,
 125        MX31_PIN_FPSHIFT__FPSHIFT,
 126        MX31_PIN_CONTRAST__CONTRAST,
 127        /* SSI */
 128        MX31_PIN_STXD4__STXD4,
 129        MX31_PIN_SRXD4__SRXD4,
 130        MX31_PIN_SCK4__SCK4,
 131        MX31_PIN_SFS4__SFS4,
 132};
 133
 134/*
 135 * FB support
 136 */
 137static const struct fb_videomode fb_modedb[] = {
 138        {       /* 480x640 @ 60 Hz */
 139                .name           = "Epson-VGA",
 140                .refresh        = 60,
 141                .xres           = 480,
 142                .yres           = 640,
 143                .pixclock       = 41701,
 144                .left_margin    = 20,
 145                .right_margin   = 41,
 146                .upper_margin   = 10,
 147                .lower_margin   = 5,
 148                .hsync_len      = 20,
 149                .vsync_len      = 10,
 150                .sync           = FB_SYNC_OE_ACT_HIGH | FB_SYNC_CLK_INVERT,
 151                .vmode          = FB_VMODE_NONINTERLACED,
 152                .flag           = 0,
 153        },
 154};
 155
 156static struct mx3fb_platform_data mx3fb_pdata __initdata = {
 157        .name           = "Epson-VGA",
 158        .mode           = fb_modedb,
 159        .num_modes      = ARRAY_SIZE(fb_modedb),
 160};
 161
 162/* LCD */
 163static struct l4f00242t03_pdata mx31_3ds_l4f00242t03_pdata = {
 164        .reset_gpio             = IOMUX_TO_GPIO(MX31_PIN_LCS1),
 165        .data_enable_gpio       = IOMUX_TO_GPIO(MX31_PIN_SER_RS),
 166};
 167
 168/*
 169 * Support for SD card slot in personality board
 170 */
 171#define MX31_3DS_GPIO_SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)
 172#define MX31_3DS_GPIO_SDHC1_BE IOMUX_TO_GPIO(MX31_PIN_GPIO3_0)
 173
 174static struct gpio mx31_3ds_sdhc1_gpios[] = {
 175        { MX31_3DS_GPIO_SDHC1_CD, GPIOF_IN, "sdhc1-card-detect" },
 176        { MX31_3DS_GPIO_SDHC1_BE, GPIOF_OUT_INIT_LOW, "sdhc1-bus-en" },
 177};
 178
 179static int mx31_3ds_sdhc1_init(struct device *dev,
 180                               irq_handler_t detect_irq,
 181                               void *data)
 182{
 183        int ret;
 184
 185        ret = gpio_request_array(mx31_3ds_sdhc1_gpios,
 186                                 ARRAY_SIZE(mx31_3ds_sdhc1_gpios));
 187        if (ret) {
 188                pr_warn("Unable to request the SD/MMC GPIOs.\n");
 189                return ret;
 190        }
 191
 192        ret = request_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)),
 193                          detect_irq,
 194                          IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 195                          "sdhc1-detect", data);
 196        if (ret) {
 197                pr_warn("Unable to request the SD/MMC card-detect IRQ.\n");
 198                goto gpio_free;
 199        }
 200
 201        return 0;
 202
 203gpio_free:
 204        gpio_free_array(mx31_3ds_sdhc1_gpios,
 205                        ARRAY_SIZE(mx31_3ds_sdhc1_gpios));
 206        return ret;
 207}
 208
 209static void mx31_3ds_sdhc1_exit(struct device *dev, void *data)
 210{
 211        free_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)), data);
 212        gpio_free_array(mx31_3ds_sdhc1_gpios,
 213                         ARRAY_SIZE(mx31_3ds_sdhc1_gpios));
 214}
 215
 216static void mx31_3ds_sdhc1_setpower(struct device *dev, unsigned int vdd)
 217{
 218        /*
 219         * While the voltage stuff is done by the driver, activate the
 220         * Buffer Enable Pin only if there is a card in slot to fix the card
 221         * voltage issue caused by bi-directional chip TXB0108 on 3Stack.
 222         * Done here because at this stage we have for sure a debounced value
 223         * of the presence of the card, showed by the value of vdd.
 224         * 7 == ilog2(MMC_VDD_165_195)
 225         */
 226        if (vdd > 7)
 227                gpio_set_value(MX31_3DS_GPIO_SDHC1_BE, 1);
 228        else
 229                gpio_set_value(MX31_3DS_GPIO_SDHC1_BE, 0);
 230}
 231
 232static struct imxmmc_platform_data sdhc1_pdata = {
 233        .init           = mx31_3ds_sdhc1_init,
 234        .exit           = mx31_3ds_sdhc1_exit,
 235        .setpower       = mx31_3ds_sdhc1_setpower,
 236};
 237
 238/*
 239 * Matrix keyboard
 240 */
 241
 242static const uint32_t mx31_3ds_keymap[] = {
 243        KEY(0, 0, KEY_UP),
 244        KEY(0, 1, KEY_DOWN),
 245        KEY(1, 0, KEY_RIGHT),
 246        KEY(1, 1, KEY_LEFT),
 247        KEY(1, 2, KEY_ENTER),
 248        KEY(2, 0, KEY_F6),
 249        KEY(2, 1, KEY_F8),
 250        KEY(2, 2, KEY_F9),
 251        KEY(2, 3, KEY_F10),
 252};
 253
 254static const struct matrix_keymap_data mx31_3ds_keymap_data __initconst = {
 255        .keymap         = mx31_3ds_keymap,
 256        .keymap_size    = ARRAY_SIZE(mx31_3ds_keymap),
 257};
 258
 259/* Regulators */
 260static struct regulator_init_data pwgtx_init = {
 261        .constraints = {
 262                .boot_on        = 1,
 263                .always_on      = 1,
 264        },
 265};
 266
 267static struct regulator_init_data gpo_init = {
 268        .constraints = {
 269                .boot_on = 1,
 270                .always_on = 1,
 271        }
 272};
 273
 274static struct regulator_consumer_supply vmmc2_consumers[] = {
 275        REGULATOR_SUPPLY("vmmc", "imx31-mmc.0"),
 276};
 277
 278static struct regulator_init_data vmmc2_init = {
 279        .constraints = {
 280                .min_uV = 3000000,
 281                .max_uV = 3000000,
 282                .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 283                                  REGULATOR_CHANGE_STATUS,
 284        },
 285        .num_consumer_supplies = ARRAY_SIZE(vmmc2_consumers),
 286        .consumer_supplies = vmmc2_consumers,
 287};
 288
 289static struct regulator_consumer_supply vmmc1_consumers[] = {
 290        REGULATOR_SUPPLY("vcore", "spi0.0"),
 291};
 292
 293static struct regulator_init_data vmmc1_init = {
 294        .constraints = {
 295                .min_uV = 2800000,
 296                .max_uV = 2800000,
 297                .apply_uV = 1,
 298                .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 299                                  REGULATOR_CHANGE_STATUS,
 300        },
 301        .num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),
 302        .consumer_supplies = vmmc1_consumers,
 303};
 304
 305static struct regulator_consumer_supply vgen_consumers[] = {
 306        REGULATOR_SUPPLY("vdd", "spi0.0"),
 307};
 308
 309static struct regulator_init_data vgen_init = {
 310        .constraints = {
 311                .min_uV = 1800000,
 312                .max_uV = 1800000,
 313                .apply_uV = 1,
 314                .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 315                                  REGULATOR_CHANGE_STATUS,
 316        },
 317        .num_consumer_supplies = ARRAY_SIZE(vgen_consumers),
 318        .consumer_supplies = vgen_consumers,
 319};
 320
 321static struct mc13xxx_regulator_init_data mx31_3ds_regulators[] = {
 322        {
 323                .id = MC13783_REG_PWGT1SPI, /* Power Gate for ARM core. */
 324                .init_data = &pwgtx_init,
 325        }, {
 326                .id = MC13783_REG_PWGT2SPI, /* Power Gate for L2 Cache. */
 327                .init_data = &pwgtx_init,
 328        }, {
 329
 330                .id = MC13783_REG_GPO1, /* Turn on 1.8V */
 331                .init_data = &gpo_init,
 332        }, {
 333                .id = MC13783_REG_GPO3, /* Turn on 3.3V */
 334                .init_data = &gpo_init,
 335        }, {
 336                .id = MC13783_REG_VMMC2, /* Power MMC/SD, WiFi/Bluetooth. */
 337                .init_data = &vmmc2_init,
 338        }, {
 339                .id = MC13783_REG_VMMC1, /* Power LCD, CMOS, FM, GPS, Accel. */
 340                .init_data = &vmmc1_init,
 341        }, {
 342                .id = MC13783_REG_VGEN,  /* Power LCD */
 343                .init_data = &vgen_init,
 344        },
 345};
 346
 347/* MC13783 */
 348static struct mc13xxx_codec_platform_data mx31_3ds_codec = {
 349        .dac_ssi_port = MC13783_SSI1_PORT,
 350        .adc_ssi_port = MC13783_SSI1_PORT,
 351};
 352
 353static struct mc13xxx_platform_data mc13783_pdata = {
 354        .regulators = {
 355                .regulators = mx31_3ds_regulators,
 356                .num_regulators = ARRAY_SIZE(mx31_3ds_regulators),
 357        },
 358        .codec = &mx31_3ds_codec,
 359        .flags  = MC13XXX_USE_TOUCHSCREEN | MC13XXX_USE_RTC | MC13XXX_USE_CODEC,
 360
 361};
 362
 363static struct imx_ssi_platform_data mx31_3ds_ssi_pdata = {
 364        .flags = IMX_SSI_DMA | IMX_SSI_NET,
 365};
 366
 367/* SPI */
 368static const struct spi_imx_master spi0_pdata __initconst = {
 369        .num_chipselect = 3,
 370};
 371
 372static const struct spi_imx_master spi1_pdata __initconst = {
 373        .num_chipselect = 3,
 374};
 375
 376static struct spi_board_info mx31_3ds_spi_devs[] __initdata = {
 377        {
 378                .modalias       = "mc13783",
 379                .max_speed_hz   = 1000000,
 380                .bus_num        = 1,
 381                .chip_select    = 2, /* SS2 */
 382                .platform_data  = &mc13783_pdata,
 383                /* irq number is run-time assigned */
 384                .mode = SPI_CS_HIGH,
 385        }, {
 386                .modalias       = "l4f00242t03",
 387                .max_speed_hz   = 5000000,
 388                .bus_num        = 0,
 389                .chip_select    = 2, /* SS2 */
 390                .platform_data  = &mx31_3ds_l4f00242t03_pdata,
 391        },
 392};
 393
 394/*
 395 * NAND Flash
 396 */
 397static const struct mxc_nand_platform_data
 398mx31_3ds_nand_board_info __initconst = {
 399        .width          = 1,
 400        .hw_ecc         = 1,
 401#ifdef CONFIG_MACH_MX31_3DS_MXC_NAND_USE_BBT
 402        .flash_bbt      = 1,
 403#endif
 404};
 405
 406/*
 407 * USB OTG
 408 */
 409
 410#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
 411                     PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
 412
 413#define USBOTG_RST_B IOMUX_TO_GPIO(MX31_PIN_USB_PWR)
 414#define USBH2_RST_B IOMUX_TO_GPIO(MX31_PIN_USB_BYP)
 415
 416static int mx31_3ds_usbotg_init(void)
 417{
 418        int err;
 419
 420        mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG);
 421        mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG);
 422        mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG);
 423        mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG);
 424        mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG);
 425        mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG);
 426        mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG);
 427        mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG);
 428        mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG);
 429        mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG);
 430        mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG);
 431        mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG);
 432
 433        err = gpio_request(USBOTG_RST_B, "otgusb-reset");
 434        if (err) {
 435                pr_err("Failed to request the USB OTG reset gpio\n");
 436                return err;
 437        }
 438
 439        err = gpio_direction_output(USBOTG_RST_B, 0);
 440        if (err) {
 441                pr_err("Failed to drive the USB OTG reset gpio\n");
 442                goto usbotg_free_reset;
 443        }
 444
 445        mdelay(1);
 446        gpio_set_value(USBOTG_RST_B, 1);
 447        return 0;
 448
 449usbotg_free_reset:
 450        gpio_free(USBOTG_RST_B);
 451        return err;
 452}
 453
 454static int mx31_3ds_otg_init(struct platform_device *pdev)
 455{
 456        return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
 457}
 458
 459static int mx31_3ds_host2_init(struct platform_device *pdev)
 460{
 461        int err;
 462
 463        mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
 464        mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
 465        mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
 466        mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
 467        mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
 468        mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
 469        mxc_iomux_set_pad(MX31_PIN_PC_VS2, USB_PAD_CFG);
 470        mxc_iomux_set_pad(MX31_PIN_PC_BVD1, USB_PAD_CFG);
 471        mxc_iomux_set_pad(MX31_PIN_PC_BVD2, USB_PAD_CFG);
 472        mxc_iomux_set_pad(MX31_PIN_PC_RST, USB_PAD_CFG);
 473        mxc_iomux_set_pad(MX31_PIN_IOIS16, USB_PAD_CFG);
 474        mxc_iomux_set_pad(MX31_PIN_PC_RW_B, USB_PAD_CFG);
 475
 476        err = gpio_request(USBH2_RST_B, "usbh2-reset");
 477        if (err) {
 478                pr_err("Failed to request the USB Host 2 reset gpio\n");
 479                return err;
 480        }
 481
 482        err = gpio_direction_output(USBH2_RST_B, 0);
 483        if (err) {
 484                pr_err("Failed to drive the USB Host 2 reset gpio\n");
 485                goto usbotg_free_reset;
 486        }
 487
 488        mdelay(1);
 489        gpio_set_value(USBH2_RST_B, 1);
 490
 491        mdelay(10);
 492
 493        return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
 494
 495usbotg_free_reset:
 496        gpio_free(USBH2_RST_B);
 497        return err;
 498}
 499
 500static struct mxc_usbh_platform_data otg_pdata __initdata = {
 501        .init   = mx31_3ds_otg_init,
 502        .portsc = MXC_EHCI_MODE_ULPI,
 503};
 504
 505static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
 506        .init = mx31_3ds_host2_init,
 507        .portsc = MXC_EHCI_MODE_ULPI,
 508};
 509
 510static const struct fsl_usb2_platform_data usbotg_pdata __initconst = {
 511        .operating_mode = FSL_USB2_DR_DEVICE,
 512        .phy_mode       = FSL_USB2_PHY_ULPI,
 513};
 514
 515static bool otg_mode_host __initdata;
 516
 517static int __init mx31_3ds_otg_mode(char *options)
 518{
 519        if (!strcmp(options, "host"))
 520                otg_mode_host = true;
 521        else if (!strcmp(options, "device"))
 522                otg_mode_host = false;
 523        else
 524                pr_info("otg_mode neither \"host\" nor \"device\". "
 525                        "Defaulting to device\n");
 526        return 1;
 527}
 528__setup("otg_mode=", mx31_3ds_otg_mode);
 529
 530static const struct imxuart_platform_data uart_pdata __initconst = {
 531        .flags = IMXUART_HAVE_RTSCTS,
 532};
 533
 534static const struct imxi2c_platform_data mx31_3ds_i2c0_data __initconst = {
 535        .bitrate = 100000,
 536};
 537
 538static void __init mx31_3ds_init(void)
 539{
 540        imx31_soc_init();
 541
 542        /* Configure SPI1 IOMUX */
 543        mxc_iomux_set_gpr(MUX_PGP_CSPI_BB, true);
 544
 545        mxc_iomux_setup_multiple_pins(mx31_3ds_pins, ARRAY_SIZE(mx31_3ds_pins),
 546                                      "mx31_3ds");
 547
 548        imx31_add_imx_uart0(&uart_pdata);
 549        imx31_add_mxc_nand(&mx31_3ds_nand_board_info);
 550
 551        imx31_add_spi_imx1(&spi1_pdata);
 552
 553        imx31_add_imx_keypad(&mx31_3ds_keymap_data);
 554
 555        imx31_add_imx2_wdt();
 556        imx31_add_imx_i2c0(&mx31_3ds_i2c0_data);
 557
 558        imx31_add_spi_imx0(&spi0_pdata);
 559        imx31_add_ipu_core();
 560        imx31_add_mx3_sdc_fb(&mx3fb_pdata);
 561
 562        imx31_add_imx_ssi(0, &mx31_3ds_ssi_pdata);
 563
 564        imx_add_platform_device("imx_mc13783", 0, NULL, 0, NULL, 0);
 565}
 566
 567static void __init mx31_3ds_late(void)
 568{
 569        mx31_3ds_spi_devs[0].irq = gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
 570        spi_register_board_info(mx31_3ds_spi_devs,
 571                                ARRAY_SIZE(mx31_3ds_spi_devs));
 572
 573        mx31_3ds_usbotg_init();
 574        if (otg_mode_host) {
 575                otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 576                                ULPI_OTG_DRVVBUS_EXT);
 577                if (otg_pdata.otg)
 578                        imx31_add_mxc_ehci_otg(&otg_pdata);
 579        }
 580        usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 581                        ULPI_OTG_DRVVBUS_EXT);
 582        if (usbh2_pdata.otg)
 583                imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
 584
 585        if (!otg_mode_host)
 586                imx31_add_fsl_usb2_udc(&usbotg_pdata);
 587
 588        if (mxc_expio_init(MX31_CS5_BASE_ADDR, IOMUX_TO_GPIO(MX31_PIN_GPIO1_1)))
 589                printk(KERN_WARNING "Init of the debug board failed, all "
 590                       "devices on the debug board are unusable.\n");
 591
 592        imx31_add_mxc_mmc(0, &sdhc1_pdata);
 593}
 594
 595static void __init mx31_3ds_timer_init(void)
 596{
 597        mx31_clocks_init(26000000);
 598}
 599
 600MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)")
 601        /* Maintainer: Freescale Semiconductor, Inc. */
 602        .atag_offset = 0x100,
 603        .map_io = mx31_map_io,
 604        .init_early = imx31_init_early,
 605        .init_irq = mx31_init_irq,
 606        .init_time      = mx31_3ds_timer_init,
 607        .init_machine = mx31_3ds_init,
 608        .init_late      = mx31_3ds_late,
 609        .restart        = mxc_restart,
 610MACHINE_END
 611