linux/arch/arm/mach-imx/mach-mx31moboard.c
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   1/*
   2 *  Copyright (C) 2008 Valentin Longchamp, EPFL Mobots group
   3 *
   4 * This program is free software; you can redistribute it and/or modify
   5 * it under the terms of the GNU General Public License as published by
   6 * the Free Software Foundation; either version 2 of the License, or
   7 * (at your option) any later version.
   8 *
   9 * This program is distributed in the hope that it will be useful,
  10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 * GNU General Public License for more details.
  13 */
  14
  15#include <linux/delay.h>
  16#include <linux/dma-mapping.h>
  17#include <linux/gfp.h>
  18#include <linux/gpio.h>
  19#include <linux/init.h>
  20#include <linux/interrupt.h>
  21#include <linux/moduleparam.h>
  22#include <linux/leds.h>
  23#include <linux/memory.h>
  24#include <linux/mtd/physmap.h>
  25#include <linux/mtd/partitions.h>
  26#include <linux/platform_device.h>
  27#include <linux/regulator/machine.h>
  28#include <linux/mfd/mc13783.h>
  29#include <linux/spi/spi.h>
  30#include <linux/types.h>
  31#include <linux/memblock.h>
  32#include <linux/clk.h>
  33#include <linux/io.h>
  34#include <linux/err.h>
  35#include <linux/input.h>
  36
  37#include <linux/usb/otg.h>
  38#include <linux/usb/ulpi.h>
  39
  40#include <asm/mach-types.h>
  41#include <asm/mach/arch.h>
  42#include <asm/mach/time.h>
  43#include <asm/mach/map.h>
  44#include <asm/memblock.h>
  45#include <linux/platform_data/asoc-imx-ssi.h>
  46
  47#include "board-mx31moboard.h"
  48#include "common.h"
  49#include "devices-imx31.h"
  50#include "ehci.h"
  51#include "hardware.h"
  52#include "iomux-mx3.h"
  53#include "ulpi.h"
  54
  55static unsigned int moboard_pins[] = {
  56        /* UART0 */
  57        MX31_PIN_TXD1__TXD1, MX31_PIN_RXD1__RXD1,
  58        MX31_PIN_CTS1__GPIO2_7,
  59        /* UART4 */
  60        MX31_PIN_PC_RST__CTS5, MX31_PIN_PC_VS2__RTS5,
  61        MX31_PIN_PC_BVD2__TXD5, MX31_PIN_PC_BVD1__RXD5,
  62        /* I2C0 */
  63        MX31_PIN_I2C_DAT__I2C1_SDA, MX31_PIN_I2C_CLK__I2C1_SCL,
  64        /* I2C1 */
  65        MX31_PIN_DCD_DTE1__I2C2_SDA, MX31_PIN_RI_DTE1__I2C2_SCL,
  66        /* SDHC1 */
  67        MX31_PIN_SD1_DATA3__SD1_DATA3, MX31_PIN_SD1_DATA2__SD1_DATA2,
  68        MX31_PIN_SD1_DATA1__SD1_DATA1, MX31_PIN_SD1_DATA0__SD1_DATA0,
  69        MX31_PIN_SD1_CLK__SD1_CLK, MX31_PIN_SD1_CMD__SD1_CMD,
  70        MX31_PIN_ATA_CS0__GPIO3_26, MX31_PIN_ATA_CS1__GPIO3_27,
  71        /* USB reset */
  72        MX31_PIN_GPIO1_0__GPIO1_0,
  73        /* USB OTG */
  74        MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
  75        MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
  76        MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
  77        MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
  78        MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
  79        MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
  80        MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
  81        MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
  82        MX31_PIN_USBOTG_CLK__USBOTG_CLK, MX31_PIN_USBOTG_DIR__USBOTG_DIR,
  83        MX31_PIN_USBOTG_NXT__USBOTG_NXT, MX31_PIN_USBOTG_STP__USBOTG_STP,
  84        MX31_PIN_USB_OC__GPIO1_30,
  85        /* USB H2 */
  86        MX31_PIN_USBH2_DATA0__USBH2_DATA0,
  87        MX31_PIN_USBH2_DATA1__USBH2_DATA1,
  88        MX31_PIN_STXD3__USBH2_DATA2, MX31_PIN_SRXD3__USBH2_DATA3,
  89        MX31_PIN_SCK3__USBH2_DATA4, MX31_PIN_SFS3__USBH2_DATA5,
  90        MX31_PIN_STXD6__USBH2_DATA6, MX31_PIN_SRXD6__USBH2_DATA7,
  91        MX31_PIN_USBH2_CLK__USBH2_CLK, MX31_PIN_USBH2_DIR__USBH2_DIR,
  92        MX31_PIN_USBH2_NXT__USBH2_NXT, MX31_PIN_USBH2_STP__USBH2_STP,
  93        MX31_PIN_SCK6__GPIO1_25,
  94        /* LEDs */
  95        MX31_PIN_SVEN0__GPIO2_0, MX31_PIN_STX0__GPIO2_1,
  96        MX31_PIN_SRX0__GPIO2_2, MX31_PIN_SIMPD0__GPIO2_3,
  97        /* SPI1 */
  98        MX31_PIN_CSPI2_MOSI__MOSI, MX31_PIN_CSPI2_MISO__MISO,
  99        MX31_PIN_CSPI2_SCLK__SCLK, MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
 100        MX31_PIN_CSPI2_SS0__SS0, MX31_PIN_CSPI2_SS2__SS2,
 101        /* Atlas IRQ */
 102        MX31_PIN_GPIO1_3__GPIO1_3,
 103        /* SPI2 */
 104        MX31_PIN_CSPI3_MOSI__MOSI, MX31_PIN_CSPI3_MISO__MISO,
 105        MX31_PIN_CSPI3_SCLK__SCLK, MX31_PIN_CSPI3_SPI_RDY__SPI_RDY,
 106        MX31_PIN_CSPI2_SS1__CSPI3_SS1,
 107        /* SSI */
 108        MX31_PIN_STXD4__STXD4, MX31_PIN_SRXD4__SRXD4,
 109        MX31_PIN_SCK4__SCK4, MX31_PIN_SFS4__SFS4,
 110};
 111
 112static struct physmap_flash_data mx31moboard_flash_data = {
 113        .width  = 2,
 114};
 115
 116static struct resource mx31moboard_flash_resource = {
 117        .start  = 0xa0000000,
 118        .end    = 0xa1ffffff,
 119        .flags  = IORESOURCE_MEM,
 120};
 121
 122static struct platform_device mx31moboard_flash = {
 123        .name   = "physmap-flash",
 124        .id     = 0,
 125        .dev    = {
 126                .platform_data  = &mx31moboard_flash_data,
 127        },
 128        .resource = &mx31moboard_flash_resource,
 129        .num_resources = 1,
 130};
 131
 132static void __init moboard_uart0_init(void)
 133{
 134        if (!gpio_request(IOMUX_TO_GPIO(MX31_PIN_CTS1), "uart0-cts-hack")) {
 135                gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_CTS1), 0);
 136                gpio_free(IOMUX_TO_GPIO(MX31_PIN_CTS1));
 137        }
 138}
 139
 140static const struct imxuart_platform_data uart0_pdata __initconst = {
 141};
 142
 143static const struct imxuart_platform_data uart4_pdata __initconst = {
 144        .flags = IMXUART_HAVE_RTSCTS,
 145};
 146
 147static const struct imxi2c_platform_data moboard_i2c0_data __initconst = {
 148        .bitrate = 400000,
 149};
 150
 151static const struct imxi2c_platform_data moboard_i2c1_data __initconst = {
 152        .bitrate = 100000,
 153};
 154
 155static int moboard_spi1_cs[] = {
 156        MXC_SPI_CS(0),
 157        MXC_SPI_CS(2),
 158};
 159
 160static const struct spi_imx_master moboard_spi1_pdata __initconst = {
 161        .chipselect     = moboard_spi1_cs,
 162        .num_chipselect = ARRAY_SIZE(moboard_spi1_cs),
 163};
 164
 165static struct regulator_consumer_supply sdhc_consumers[] = {
 166        {
 167                .dev_name = "imx31-mmc.0",
 168                .supply = "sdhc0_vcc",
 169        },
 170        {
 171                .dev_name = "imx31-mmc.1",
 172                .supply = "sdhc1_vcc",
 173        },
 174};
 175
 176static struct regulator_init_data sdhc_vreg_data = {
 177        .constraints = {
 178                .min_uV = 2700000,
 179                .max_uV = 3000000,
 180                .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 181                        REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 182                .valid_modes_mask = REGULATOR_MODE_NORMAL |
 183                        REGULATOR_MODE_FAST,
 184                .always_on = 0,
 185                .boot_on = 1,
 186        },
 187        .num_consumer_supplies = ARRAY_SIZE(sdhc_consumers),
 188        .consumer_supplies = sdhc_consumers,
 189};
 190
 191static struct regulator_consumer_supply cam_consumers[] = {
 192        {
 193                .dev_name = "mx3_camera.0",
 194                .supply = "cam_vcc",
 195        },
 196};
 197
 198static struct regulator_init_data cam_vreg_data = {
 199        .constraints = {
 200                .min_uV = 2700000,
 201                .max_uV = 3000000,
 202                .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 203                        REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 204                .valid_modes_mask = REGULATOR_MODE_NORMAL |
 205                        REGULATOR_MODE_FAST,
 206                .always_on = 0,
 207                .boot_on = 1,
 208        },
 209        .num_consumer_supplies = ARRAY_SIZE(cam_consumers),
 210        .consumer_supplies = cam_consumers,
 211};
 212
 213static struct mc13xxx_regulator_init_data moboard_regulators[] = {
 214        {
 215                .id = MC13783_REG_VMMC1,
 216                .init_data = &sdhc_vreg_data,
 217        },
 218        {
 219                .id = MC13783_REG_VCAM,
 220                .init_data = &cam_vreg_data,
 221        },
 222};
 223
 224static struct mc13xxx_led_platform_data moboard_led[] = {
 225        {
 226                .id = MC13783_LED_R1,
 227                .name = "coreboard-led-4:red",
 228        },
 229        {
 230                .id = MC13783_LED_G1,
 231                .name = "coreboard-led-4:green",
 232        },
 233        {
 234                .id = MC13783_LED_B1,
 235                .name = "coreboard-led-4:blue",
 236        },
 237        {
 238                .id = MC13783_LED_R2,
 239                .name = "coreboard-led-5:red",
 240        },
 241        {
 242                .id = MC13783_LED_G2,
 243                .name = "coreboard-led-5:green",
 244        },
 245        {
 246                .id = MC13783_LED_B2,
 247                .name = "coreboard-led-5:blue",
 248        },
 249};
 250
 251static struct mc13xxx_leds_platform_data moboard_leds = {
 252        .num_leds = ARRAY_SIZE(moboard_led),
 253        .led = moboard_led,
 254        .led_control[0] = MC13783_LED_C0_ENABLE | MC13783_LED_C0_ABMODE(0),
 255        .led_control[1] = MC13783_LED_C1_SLEWLIM,
 256        .led_control[2] = MC13783_LED_C2_SLEWLIM,
 257        .led_control[3] = MC13783_LED_C3_PERIOD(0) |
 258                          MC13783_LED_C3_CURRENT_R1(2) |
 259                          MC13783_LED_C3_CURRENT_G1(2) |
 260                          MC13783_LED_C3_CURRENT_B1(2),
 261        .led_control[4] = MC13783_LED_C4_PERIOD(0) |
 262                          MC13783_LED_C4_CURRENT_R2(3) |
 263                          MC13783_LED_C4_CURRENT_G2(3) |
 264                          MC13783_LED_C4_CURRENT_B2(3),
 265};
 266
 267static struct mc13xxx_buttons_platform_data moboard_buttons = {
 268        .b1on_flags = MC13783_BUTTON_DBNC_750MS | MC13783_BUTTON_ENABLE |
 269                        MC13783_BUTTON_POL_INVERT,
 270        .b1on_key = KEY_POWER,
 271};
 272
 273static struct mc13xxx_codec_platform_data moboard_codec = {
 274        .dac_ssi_port = MC13783_SSI1_PORT,
 275        .adc_ssi_port = MC13783_SSI1_PORT,
 276};
 277
 278static struct mc13xxx_platform_data moboard_pmic = {
 279        .regulators = {
 280                .regulators = moboard_regulators,
 281                .num_regulators = ARRAY_SIZE(moboard_regulators),
 282        },
 283        .leds = &moboard_leds,
 284        .buttons = &moboard_buttons,
 285        .codec = &moboard_codec,
 286        .flags = MC13XXX_USE_RTC | MC13XXX_USE_ADC | MC13XXX_USE_CODEC,
 287};
 288
 289static struct imx_ssi_platform_data moboard_ssi_pdata = {
 290        .flags = IMX_SSI_DMA | IMX_SSI_NET,
 291};
 292
 293static struct spi_board_info moboard_spi_board_info[] __initdata = {
 294        {
 295                .modalias = "mc13783",
 296                /* irq number is run-time assigned */
 297                .max_speed_hz = 300000,
 298                .bus_num = 1,
 299                .chip_select = 0,
 300                .platform_data = &moboard_pmic,
 301                .mode = SPI_CS_HIGH,
 302        },
 303};
 304
 305static int moboard_spi2_cs[] = {
 306        MXC_SPI_CS(1),
 307};
 308
 309static const struct spi_imx_master moboard_spi2_pdata __initconst = {
 310        .chipselect     = moboard_spi2_cs,
 311        .num_chipselect = ARRAY_SIZE(moboard_spi2_cs),
 312};
 313
 314#define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0)
 315#define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1)
 316
 317static int moboard_sdhc1_get_ro(struct device *dev)
 318{
 319        return !gpio_get_value(SDHC1_WP);
 320}
 321
 322static int moboard_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
 323                void *data)
 324{
 325        int ret;
 326
 327        ret = gpio_request(SDHC1_CD, "sdhc-detect");
 328        if (ret)
 329                return ret;
 330
 331        gpio_direction_input(SDHC1_CD);
 332
 333        ret = gpio_request(SDHC1_WP, "sdhc-wp");
 334        if (ret)
 335                goto err_gpio_free;
 336        gpio_direction_input(SDHC1_WP);
 337
 338        ret = request_irq(gpio_to_irq(SDHC1_CD), detect_irq,
 339                IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 340                "sdhc1-card-detect", data);
 341        if (ret)
 342                goto err_gpio_free_2;
 343
 344        return 0;
 345
 346err_gpio_free_2:
 347        gpio_free(SDHC1_WP);
 348err_gpio_free:
 349        gpio_free(SDHC1_CD);
 350
 351        return ret;
 352}
 353
 354static void moboard_sdhc1_exit(struct device *dev, void *data)
 355{
 356        free_irq(gpio_to_irq(SDHC1_CD), data);
 357        gpio_free(SDHC1_WP);
 358        gpio_free(SDHC1_CD);
 359}
 360
 361static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
 362        .get_ro = moboard_sdhc1_get_ro,
 363        .init   = moboard_sdhc1_init,
 364        .exit   = moboard_sdhc1_exit,
 365};
 366
 367/*
 368 * this pin is dedicated for all mx31moboard systems, so we do it here
 369 */
 370#define USB_RESET_B     IOMUX_TO_GPIO(MX31_PIN_GPIO1_0)
 371#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
 372                      PAD_CTL_ODE_CMOS)
 373
 374#define OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC)
 375#define USBH2_EN_B IOMUX_TO_GPIO(MX31_PIN_SCK6)
 376
 377static void usb_xcvr_reset(void)
 378{
 379        mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG | PAD_CTL_100K_PD);
 380        mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG | PAD_CTL_100K_PD);
 381        mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG | PAD_CTL_100K_PD);
 382        mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG | PAD_CTL_100K_PD);
 383        mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG | PAD_CTL_100K_PD);
 384        mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG | PAD_CTL_100K_PD);
 385        mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG | PAD_CTL_100K_PD);
 386        mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG | PAD_CTL_100K_PD);
 387        mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG | PAD_CTL_100K_PU);
 388        mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG | PAD_CTL_100K_PU);
 389        mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG | PAD_CTL_100K_PU);
 390        mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG | PAD_CTL_100K_PU);
 391
 392        mxc_iomux_set_gpr(MUX_PGP_UH2, true);
 393        mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG | PAD_CTL_100K_PU);
 394        mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG | PAD_CTL_100K_PU);
 395        mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG | PAD_CTL_100K_PU);
 396        mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG | PAD_CTL_100K_PU);
 397        mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG | PAD_CTL_100K_PD);
 398        mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG | PAD_CTL_100K_PD);
 399        mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG | PAD_CTL_100K_PD);
 400        mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG | PAD_CTL_100K_PD);
 401        mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG | PAD_CTL_100K_PD);
 402        mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG | PAD_CTL_100K_PD);
 403        mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG | PAD_CTL_100K_PD);
 404        mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG | PAD_CTL_100K_PD);
 405
 406        gpio_request(OTG_EN_B, "usb-udc-en");
 407        gpio_direction_output(OTG_EN_B, 0);
 408        gpio_request(USBH2_EN_B, "usbh2-en");
 409        gpio_direction_output(USBH2_EN_B, 0);
 410
 411        gpio_request(USB_RESET_B, "usb-reset");
 412        gpio_direction_output(USB_RESET_B, 0);
 413        mdelay(1);
 414        gpio_set_value(USB_RESET_B, 1);
 415        mdelay(1);
 416}
 417
 418static int moboard_usbh2_init_hw(struct platform_device *pdev)
 419{
 420        return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
 421}
 422
 423static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
 424        .init   = moboard_usbh2_init_hw,
 425        .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
 426};
 427
 428static int __init moboard_usbh2_init(void)
 429{
 430        struct platform_device *pdev;
 431
 432        usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 433                        ULPI_OTG_DRVVBUS_EXT);
 434        if (!usbh2_pdata.otg)
 435                return -ENODEV;
 436
 437        pdev = imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
 438
 439        return PTR_ERR_OR_ZERO(pdev);
 440}
 441
 442static const struct gpio_led mx31moboard_leds[] __initconst = {
 443        {
 444                .name   = "coreboard-led-0:red:running",
 445                .default_trigger = "heartbeat",
 446                .gpio   = IOMUX_TO_GPIO(MX31_PIN_SVEN0),
 447        }, {
 448                .name   = "coreboard-led-1:red",
 449                .gpio   = IOMUX_TO_GPIO(MX31_PIN_STX0),
 450        }, {
 451                .name   = "coreboard-led-2:red",
 452                .gpio   = IOMUX_TO_GPIO(MX31_PIN_SRX0),
 453        }, {
 454                .name   = "coreboard-led-3:red",
 455                .gpio   = IOMUX_TO_GPIO(MX31_PIN_SIMPD0),
 456        },
 457};
 458
 459static const struct gpio_led_platform_data mx31moboard_led_pdata __initconst = {
 460        .num_leds       = ARRAY_SIZE(mx31moboard_leds),
 461        .leds           = mx31moboard_leds,
 462};
 463
 464static struct platform_device *devices[] __initdata = {
 465        &mx31moboard_flash,
 466};
 467
 468static struct mx3_camera_pdata camera_pdata __initdata = {
 469        .flags          = MX3_CAMERA_DATAWIDTH_8 | MX3_CAMERA_DATAWIDTH_10,
 470        .mclk_10khz     = 4800,
 471};
 472
 473static phys_addr_t mx3_camera_base __initdata;
 474#define MX3_CAMERA_BUF_SIZE SZ_4M
 475
 476static int __init mx31moboard_init_cam(void)
 477{
 478        int dma, ret = -ENOMEM;
 479        struct platform_device *pdev;
 480
 481        imx31_add_ipu_core();
 482
 483        pdev = imx31_alloc_mx3_camera(&camera_pdata);
 484        if (IS_ERR(pdev))
 485                return PTR_ERR(pdev);
 486
 487        dma = dma_declare_coherent_memory(&pdev->dev,
 488                                        mx3_camera_base, mx3_camera_base,
 489                                        MX3_CAMERA_BUF_SIZE,
 490                                        DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
 491        if (!(dma & DMA_MEMORY_MAP))
 492                goto err;
 493
 494        ret = platform_device_add(pdev);
 495        if (ret)
 496err:
 497                platform_device_put(pdev);
 498
 499        return ret;
 500
 501}
 502
 503static void mx31moboard_poweroff(void)
 504{
 505        struct clk *clk = clk_get_sys("imx2-wdt.0", NULL);
 506
 507        if (!IS_ERR(clk))
 508                clk_prepare_enable(clk);
 509
 510        mxc_iomux_mode(MX31_PIN_WATCHDOG_RST__WATCHDOG_RST);
 511
 512        __raw_writew(1 << 6 | 1 << 2, MX31_IO_ADDRESS(MX31_WDOG_BASE_ADDR));
 513}
 514
 515static int mx31moboard_baseboard;
 516core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444);
 517
 518/*
 519 * Board specific initialization.
 520 */
 521static void __init mx31moboard_init(void)
 522{
 523        imx31_soc_init();
 524
 525        mxc_iomux_setup_multiple_pins(moboard_pins, ARRAY_SIZE(moboard_pins),
 526                "moboard");
 527
 528        platform_add_devices(devices, ARRAY_SIZE(devices));
 529        gpio_led_register_device(-1, &mx31moboard_led_pdata);
 530
 531        imx31_add_imx2_wdt();
 532
 533        moboard_uart0_init();
 534        imx31_add_imx_uart0(&uart0_pdata);
 535        imx31_add_imx_uart4(&uart4_pdata);
 536
 537        imx31_add_imx_i2c0(&moboard_i2c0_data);
 538        imx31_add_imx_i2c1(&moboard_i2c1_data);
 539
 540        imx31_add_spi_imx1(&moboard_spi1_pdata);
 541        imx31_add_spi_imx2(&moboard_spi2_pdata);
 542
 543        gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3), "pmic-irq");
 544        gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
 545        moboard_spi_board_info[0].irq =
 546                        gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
 547        spi_register_board_info(moboard_spi_board_info,
 548                ARRAY_SIZE(moboard_spi_board_info));
 549
 550        imx31_add_mxc_mmc(0, &sdhc1_pdata);
 551
 552        mx31moboard_init_cam();
 553
 554        usb_xcvr_reset();
 555
 556        moboard_usbh2_init();
 557
 558        imx31_add_imx_ssi(0, &moboard_ssi_pdata);
 559
 560        imx_add_platform_device("imx_mc13783", 0, NULL, 0, NULL, 0);
 561
 562        pm_power_off = mx31moboard_poweroff;
 563
 564        switch (mx31moboard_baseboard) {
 565        case MX31NOBOARD:
 566                break;
 567        case MX31DEVBOARD:
 568                mx31moboard_devboard_init();
 569                break;
 570        case MX31MARXBOT:
 571                mx31moboard_marxbot_init();
 572                break;
 573        case MX31SMARTBOT:
 574        case MX31EYEBOT:
 575                mx31moboard_smartbot_init(mx31moboard_baseboard);
 576                break;
 577        default:
 578                printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n",
 579                        mx31moboard_baseboard);
 580        }
 581}
 582
 583static void __init mx31moboard_timer_init(void)
 584{
 585        mx31_clocks_init(26000000);
 586}
 587
 588static void __init mx31moboard_reserve(void)
 589{
 590        /* reserve 4 MiB for mx3-camera */
 591        mx3_camera_base = arm_memblock_steal(MX3_CAMERA_BUF_SIZE,
 592                        MX3_CAMERA_BUF_SIZE);
 593}
 594
 595MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
 596        /* Maintainer: Philippe Retornaz, EPFL Mobots group */
 597        .atag_offset = 0x100,
 598        .reserve = mx31moboard_reserve,
 599        .map_io = mx31_map_io,
 600        .init_early = imx31_init_early,
 601        .init_irq = mx31_init_irq,
 602        .init_time      = mx31moboard_timer_init,
 603        .init_machine = mx31moboard_init,
 604        .restart        = mxc_restart,
 605MACHINE_END
 606