arch/arm/mach-imx/mach-mx31moboard.c

   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 <mach/board-mx31moboard.h>
  46 #include <mach/common.h>
  47 #include <mach/hardware.h>
  48 #include <mach/iomux-mx3.h>
  49 #include <mach/ulpi.h>
  50
  51 #include "devices-imx31.h"
  52
  53 static unsigned int moboard_pins[] = {
  54         /* UART0 */
  55         MX31_PIN_TXD1__TXD1, MX31_PIN_RXD1__RXD1,
  56         MX31_PIN_CTS1__GPIO2_7,
  57         /* UART4 */
  58         MX31_PIN_PC_RST__CTS5, MX31_PIN_PC_VS2__RTS5,
  59         MX31_PIN_PC_BVD2__TXD5, MX31_PIN_PC_BVD1__RXD5,
  60         /* I2C0 */
  61         MX31_PIN_I2C_DAT__I2C1_SDA, MX31_PIN_I2C_CLK__I2C1_SCL,
  62         /* I2C1 */
  63         MX31_PIN_DCD_DTE1__I2C2_SDA, MX31_PIN_RI_DTE1__I2C2_SCL,
  64         /* SDHC1 */
  65         MX31_PIN_SD1_DATA3__SD1_DATA3, MX31_PIN_SD1_DATA2__SD1_DATA2,
  66         MX31_PIN_SD1_DATA1__SD1_DATA1, MX31_PIN_SD1_DATA0__SD1_DATA0,
  67         MX31_PIN_SD1_CLK__SD1_CLK, MX31_PIN_SD1_CMD__SD1_CMD,
  68         MX31_PIN_ATA_CS0__GPIO3_26, MX31_PIN_ATA_CS1__GPIO3_27,
  69         /* USB reset */
  70         MX31_PIN_GPIO1_0__GPIO1_0,
  71         /* USB OTG */
  72         MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
  73         MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
  74         MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
  75         MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
  76         MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
  77         MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
  78         MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
  79         MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
  80         MX31_PIN_USBOTG_CLK__USBOTG_CLK, MX31_PIN_USBOTG_DIR__USBOTG_DIR,
  81         MX31_PIN_USBOTG_NXT__USBOTG_NXT, MX31_PIN_USBOTG_STP__USBOTG_STP,
  82         MX31_PIN_USB_OC__GPIO1_30,
  83         /* USB H2 */
  84         MX31_PIN_USBH2_DATA0__USBH2_DATA0,
  85         MX31_PIN_USBH2_DATA1__USBH2_DATA1,
  86         MX31_PIN_STXD3__USBH2_DATA2, MX31_PIN_SRXD3__USBH2_DATA3,
  87         MX31_PIN_SCK3__USBH2_DATA4, MX31_PIN_SFS3__USBH2_DATA5,
  88         MX31_PIN_STXD6__USBH2_DATA6, MX31_PIN_SRXD6__USBH2_DATA7,
  89         MX31_PIN_USBH2_CLK__USBH2_CLK, MX31_PIN_USBH2_DIR__USBH2_DIR,
  90         MX31_PIN_USBH2_NXT__USBH2_NXT, MX31_PIN_USBH2_STP__USBH2_STP,
  91         MX31_PIN_SCK6__GPIO1_25,
  92         /* LEDs */
  93         MX31_PIN_SVEN0__GPIO2_0, MX31_PIN_STX0__GPIO2_1,
  94         MX31_PIN_SRX0__GPIO2_2, MX31_PIN_SIMPD0__GPIO2_3,
  95         /* SPI1 */
  96         MX31_PIN_CSPI2_MOSI__MOSI, MX31_PIN_CSPI2_MISO__MISO,
  97         MX31_PIN_CSPI2_SCLK__SCLK, MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
  98         MX31_PIN_CSPI2_SS0__SS0, MX31_PIN_CSPI2_SS2__SS2,
  99         /* Atlas IRQ */
 100         MX31_PIN_GPIO1_3__GPIO1_3,
 101         /* SPI2 */
 102         MX31_PIN_CSPI3_MOSI__MOSI, MX31_PIN_CSPI3_MISO__MISO,
 103         MX31_PIN_CSPI3_SCLK__SCLK, MX31_PIN_CSPI3_SPI_RDY__SPI_RDY,
 104         MX31_PIN_CSPI2_SS1__CSPI3_SS1,
 105 };
 106
 107 static struct physmap_flash_data mx31moboard_flash_data = {
 108         .width  = 2,
 109 };
 110
 111 static struct resource mx31moboard_flash_resource = {
 112         .start  = 0xa0000000,
 113         .end    = 0xa1ffffff,
 114         .flags  = IORESOURCE_MEM,
 115 };
 116
 117 static struct platform_device mx31moboard_flash = {
 118         .name   = "physmap-flash",
 119         .id     = 0,
 120         .dev    = {
 121                 .platform_data  = &mx31moboard_flash_data,
 122         },
 123         .resource = &mx31moboard_flash_resource,
 124         .num_resources = 1,
 125 };
 126
 127 static int moboard_uart0_init(struct platform_device *pdev)
 128 {
 129         int ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_CTS1), "uart0-cts-hack");
 130         if (ret)
 131                 return ret;
 132
 133         ret = gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_CTS1), 0);
 134         if (ret)
 135                 gpio_free(IOMUX_TO_GPIO(MX31_PIN_CTS1));
 136
 137         return ret;
 138 }
 139
 140 static void moboard_uart0_exit(struct platform_device *pdev)
 141 {
 142         gpio_free(IOMUX_TO_GPIO(MX31_PIN_CTS1));
 143 }
 144
 145 static const struct imxuart_platform_data uart0_pdata __initconst = {
 146         .init = moboard_uart0_init,
 147         .exit = moboard_uart0_exit,
 148 };
 149
 150 static const struct imxuart_platform_data uart4_pdata __initconst = {
 151         .flags = IMXUART_HAVE_RTSCTS,
 152 };
 153
 154 static const struct imxi2c_platform_data moboard_i2c0_data __initconst = {
 155         .bitrate = 400000,
 156 };
 157
 158 static const struct imxi2c_platform_data moboard_i2c1_data __initconst = {
 159         .bitrate = 100000,
 160 };
 161
 162 static int moboard_spi1_cs[] = {
 163         MXC_SPI_CS(0),
 164         MXC_SPI_CS(2),
 165 };
 166
 167 static const struct spi_imx_master moboard_spi1_pdata __initconst = {
 168         .chipselect     = moboard_spi1_cs,
 169         .num_chipselect = ARRAY_SIZE(moboard_spi1_cs),
 170 };
 171
 172 static struct regulator_consumer_supply sdhc_consumers[] = {
 173         {
 174                 .dev_name = "mxc-mmc.0",
 175                 .supply = "sdhc0_vcc",
 176         },
 177         {
 178                 .dev_name = "mxc-mmc.1",
 179                 .supply = "sdhc1_vcc",
 180         },
 181 };
 182
 183 static struct regulator_init_data sdhc_vreg_data = {
 184         .constraints = {
 185                 .min_uV = 2700000,
 186                 .max_uV = 3000000,
 187                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 188                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 189                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
 190                         REGULATOR_MODE_FAST,
 191                 .always_on = 0,
 192                 .boot_on = 1,
 193         },
 194         .num_consumer_supplies = ARRAY_SIZE(sdhc_consumers),
 195         .consumer_supplies = sdhc_consumers,
 196 };
 197
 198 static struct regulator_consumer_supply cam_consumers[] = {
 199         {
 200                 .dev_name = "mx3_camera.0",
 201                 .supply = "cam_vcc",
 202         },
 203 };
 204
 205 static struct regulator_init_data cam_vreg_data = {
 206         .constraints = {
 207                 .min_uV = 2700000,
 208                 .max_uV = 3000000,
 209                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 210                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 211                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
 212                         REGULATOR_MODE_FAST,
 213                 .always_on = 0,
 214                 .boot_on = 1,
 215         },
 216         .num_consumer_supplies = ARRAY_SIZE(cam_consumers),
 217         .consumer_supplies = cam_consumers,
 218 };
 219
 220 static struct mc13xxx_regulator_init_data moboard_regulators[] = {
 221         {
 222                 .id = MC13783_REG_VMMC1,
 223                 .init_data = &sdhc_vreg_data,
 224         },
 225         {
 226                 .id = MC13783_REG_VCAM,
 227                 .init_data = &cam_vreg_data,
 228         },
 229 };
 230
 231 static struct mc13xxx_led_platform_data moboard_led[] = {
 232         {
 233                 .id = MC13783_LED_R1,
 234                 .name = "coreboard-led-4:red",
 235                 .max_current = 2,
 236         },
 237         {
 238                 .id = MC13783_LED_G1,
 239                 .name = "coreboard-led-4:green",
 240                 .max_current = 2,
 241         },
 242         {
 243                 .id = MC13783_LED_B1,
 244                 .name = "coreboard-led-4:blue",
 245                 .max_current = 2,
 246         },
 247         {
 248                 .id = MC13783_LED_R2,
 249                 .name = "coreboard-led-5:red",
 250                 .max_current = 3,
 251         },
 252         {
 253                 .id = MC13783_LED_G2,
 254                 .name = "coreboard-led-5:green",
 255                 .max_current = 3,
 256         },
 257         {
 258                 .id = MC13783_LED_B2,
 259                 .name = "coreboard-led-5:blue",
 260                 .max_current = 3,
 261         },
 262 };
 263
 264 static struct mc13xxx_leds_platform_data moboard_leds = {
 265         .num_leds = ARRAY_SIZE(moboard_led),
 266         .led = moboard_led,
 267         .flags = MC13783_LED_SLEWLIMTC,
 268         .abmode = MC13783_LED_AB_DISABLED,
 269         .tc1_period = MC13783_LED_PERIOD_10MS,
 270         .tc2_period = MC13783_LED_PERIOD_10MS,
 271 };
 272
 273 static struct mc13xxx_buttons_platform_data moboard_buttons = {
 274         .b1on_flags = MC13783_BUTTON_DBNC_750MS | MC13783_BUTTON_ENABLE |
 275                         MC13783_BUTTON_POL_INVERT,
 276         .b1on_key = KEY_POWER,
 277 };
 278
 279 static struct mc13xxx_platform_data moboard_pmic = {
 280         .regulators = {
 281                 .regulators = moboard_regulators,
 282                 .num_regulators = ARRAY_SIZE(moboard_regulators),
 283         },
 284         .leds = &moboard_leds,
 285         .buttons = &moboard_buttons,
 286         .flags = MC13XXX_USE_RTC | MC13XXX_USE_ADC,
 287 };
 288
 289 static struct spi_board_info moboard_spi_board_info[] __initdata = {
 290         {
 291                 .modalias = "mc13783",
 292                 .irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
 293                 .max_speed_hz = 300000,
 294                 .bus_num = 1,
 295                 .chip_select = 0,
 296                 .platform_data = &moboard_pmic,
 297                 .mode = SPI_CS_HIGH,
 298         },
 299 };
 300
 301 static int moboard_spi2_cs[] = {
 302         MXC_SPI_CS(1),
 303 };
 304
 305 static const struct spi_imx_master moboard_spi2_pdata __initconst = {
 306         .chipselect     = moboard_spi2_cs,
 307         .num_chipselect = ARRAY_SIZE(moboard_spi2_cs),
 308 };
 309
 310 #define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0)
 311 #define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1)
 312
 313 static int moboard_sdhc1_get_ro(struct device *dev)
 314 {
 315         return !gpio_get_value(SDHC1_WP);
 316 }
 317
 318 static int moboard_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
 319                 void *data)
 320 {
 321         int ret;
 322
 323         ret = gpio_request(SDHC1_CD, "sdhc-detect");
 324         if (ret)
 325                 return ret;
 326
 327         gpio_direction_input(SDHC1_CD);
 328
 329         ret = gpio_request(SDHC1_WP, "sdhc-wp");
 330         if (ret)
 331                 goto err_gpio_free;
 332         gpio_direction_input(SDHC1_WP);
 333
 334         ret = request_irq(gpio_to_irq(SDHC1_CD), detect_irq,
 335                 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 336                 "sdhc1-card-detect", data);
 337         if (ret)
 338                 goto err_gpio_free_2;
 339
 340         return 0;
 341
 342 err_gpio_free_2:
 343         gpio_free(SDHC1_WP);
 344 err_gpio_free:
 345         gpio_free(SDHC1_CD);
 346
 347         return ret;
 348 }
 349
 350 static void moboard_sdhc1_exit(struct device *dev, void *data)
 351 {
 352         free_irq(gpio_to_irq(SDHC1_CD), data);
 353         gpio_free(SDHC1_WP);
 354         gpio_free(SDHC1_CD);
 355 }
 356
 357 static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
 358         .get_ro = moboard_sdhc1_get_ro,
 359         .init   = moboard_sdhc1_init,
 360         .exit   = moboard_sdhc1_exit,
 361 };
 362
 363 /*
 364  * this pin is dedicated for all mx31moboard systems, so we do it here
 365  */
 366 #define USB_RESET_B     IOMUX_TO_GPIO(MX31_PIN_GPIO1_0)
 367 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
 368                       PAD_CTL_ODE_CMOS)
 369
 370 #define OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC)
 371 #define USBH2_EN_B IOMUX_TO_GPIO(MX31_PIN_SCK6)
 372
 373 static void usb_xcvr_reset(void)
 374 {
 375         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG | PAD_CTL_100K_PD);
 376         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG | PAD_CTL_100K_PD);
 377         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG | PAD_CTL_100K_PD);
 378         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG | PAD_CTL_100K_PD);
 379         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG | PAD_CTL_100K_PD);
 380         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG | PAD_CTL_100K_PD);
 381         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG | PAD_CTL_100K_PD);
 382         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG | PAD_CTL_100K_PD);
 383         mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG | PAD_CTL_100K_PU);
 384         mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG | PAD_CTL_100K_PU);
 385         mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG | PAD_CTL_100K_PU);
 386         mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG | PAD_CTL_100K_PU);
 387
 388         mxc_iomux_set_gpr(MUX_PGP_UH2, true);
 389         mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG | PAD_CTL_100K_PU);
 390         mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG | PAD_CTL_100K_PU);
 391         mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG | PAD_CTL_100K_PU);
 392         mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG | PAD_CTL_100K_PU);
 393         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG | PAD_CTL_100K_PD);
 394         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG | PAD_CTL_100K_PD);
 395         mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG | PAD_CTL_100K_PD);
 396         mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG | PAD_CTL_100K_PD);
 397         mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG | PAD_CTL_100K_PD);
 398         mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG | PAD_CTL_100K_PD);
 399         mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG | PAD_CTL_100K_PD);
 400         mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG | PAD_CTL_100K_PD);
 401
 402         gpio_request(OTG_EN_B, "usb-udc-en");
 403         gpio_direction_output(OTG_EN_B, 0);
 404         gpio_request(USBH2_EN_B, "usbh2-en");
 405         gpio_direction_output(USBH2_EN_B, 0);
 406
 407         gpio_request(USB_RESET_B, "usb-reset");
 408         gpio_direction_output(USB_RESET_B, 0);
 409         mdelay(1);
 410         gpio_set_value(USB_RESET_B, 1);
 411         mdelay(1);
 412 }
 413
 414 static int moboard_usbh2_init_hw(struct platform_device *pdev)
 415 {
 416         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
 417 }
 418
 419 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
 420         .init   = moboard_usbh2_init_hw,
 421         .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
 422 };
 423
 424 static int __init moboard_usbh2_init(void)
 425 {
 426         struct platform_device *pdev;
 427
 428         usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 429                         ULPI_OTG_DRVVBUS_EXT);
 430         if (!usbh2_pdata.otg)
 431                 return -ENODEV;
 432
 433         pdev = imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
 434         if (IS_ERR(pdev))
 435                 return PTR_ERR(pdev);
 436
 437         return 0;
 438 }
 439
 440 static const struct gpio_led mx31moboard_leds[] __initconst = {
 441         {
 442                 .name   = "coreboard-led-0:red:running",
 443                 .default_trigger = "heartbeat",
 444                 .gpio   = IOMUX_TO_GPIO(MX31_PIN_SVEN0),
 445         }, {
 446                 .name   = "coreboard-led-1:red",
 447                 .gpio   = IOMUX_TO_GPIO(MX31_PIN_STX0),
 448         }, {
 449                 .name   = "coreboard-led-2:red",
 450                 .gpio   = IOMUX_TO_GPIO(MX31_PIN_SRX0),
 451         }, {
 452                 .name   = "coreboard-led-3:red",
 453                 .gpio   = IOMUX_TO_GPIO(MX31_PIN_SIMPD0),
 454         },
 455 };
 456
 457 static const struct gpio_led_platform_data mx31moboard_led_pdata __initconst = {
 458         .num_leds       = ARRAY_SIZE(mx31moboard_leds),
 459         .leds           = mx31moboard_leds,
 460 };
 461
 462 static const struct ipu_platform_data mx3_ipu_data __initconst = {
 463         .irq_base = MXC_IPU_IRQ_START,
 464 };
 465
 466 static struct platform_device *devices[] __initdata = {
 467         &mx31moboard_flash,
 468 };
 469
 470 static struct mx3_camera_pdata camera_pdata __initdata = {
 471         .flags          = MX3_CAMERA_DATAWIDTH_8 | MX3_CAMERA_DATAWIDTH_10,
 472         .mclk_10khz     = 4800,
 473 };
 474
 475 static phys_addr_t mx3_camera_base __initdata;
 476 #define MX3_CAMERA_BUF_SIZE SZ_4M
 477
 478 static int __init mx31moboard_init_cam(void)
 479 {
 480         int dma, ret = -ENOMEM;
 481         struct platform_device *pdev;
 482
 483         imx31_add_ipu_core(&mx3_ipu_data);
 484
 485         pdev = imx31_alloc_mx3_camera(&camera_pdata);
 486         if (IS_ERR(pdev))
 487                 return PTR_ERR(pdev);
 488
 489         dma = dma_declare_coherent_memory(&pdev->dev,
 490                                         mx3_camera_base, mx3_camera_base,
 491                                         MX3_CAMERA_BUF_SIZE,
 492                                         DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
 493         if (!(dma & DMA_MEMORY_MAP))
 494                 goto err;
 495
 496         ret = platform_device_add(pdev);
 497         if (ret)
 498 err:
 499                 platform_device_put(pdev);
 500
 501         return ret;
 502
 503 }
 504
 505 static void mx31moboard_poweroff(void)
 506 {
 507         struct clk *clk = clk_get_sys("imx2-wdt.0", NULL);
 508
 509         if (!IS_ERR(clk))
 510                 clk_enable(clk);
 511
 512         mxc_iomux_mode(MX31_PIN_WATCHDOG_RST__WATCHDOG_RST);
 513
 514         __raw_writew(1 << 6 | 1 << 2, MX31_IO_ADDRESS(MX31_WDOG_BASE_ADDR));
 515 }
 516
 517 static int mx31moboard_baseboard;
 518 core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444);
 519
 520 /*
 521  * Board specific initialization.
 522  */
 523 static void __init mx31moboard_init(void)
 524 {
 525         imx31_soc_init();
 526
 527         mxc_iomux_setup_multiple_pins(moboard_pins, ARRAY_SIZE(moboard_pins),
 528                 "moboard");
 529
 530         platform_add_devices(devices, ARRAY_SIZE(devices));
 531         gpio_led_register_device(-1, &mx31moboard_led_pdata);
 532
 533         imx31_add_imx_uart0(&uart0_pdata);
 534         imx31_add_imx_uart4(&uart4_pdata);
 535
 536         imx31_add_imx_i2c0(&moboard_i2c0_data);
 537         imx31_add_imx_i2c1(&moboard_i2c1_data);
 538
 539         imx31_add_spi_imx1(&moboard_spi1_pdata);
 540         imx31_add_spi_imx2(&moboard_spi2_pdata);
 541
 542         gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3), "pmic-irq");
 543         gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
 544         spi_register_board_info(moboard_spi_board_info,
 545                 ARRAY_SIZE(moboard_spi_board_info));
 546
 547         imx31_add_mxc_mmc(0, &sdhc1_pdata);
 548
 549         mx31moboard_init_cam();
 550
 551         usb_xcvr_reset();
 552
 553         moboard_usbh2_init();
 554
 555         pm_power_off = mx31moboard_poweroff;
 556
 557         switch (mx31moboard_baseboard) {
 558         case MX31NOBOARD:
 559                 break;
 560         case MX31DEVBOARD:
 561                 mx31moboard_devboard_init();
 562                 break;
 563         case MX31MARXBOT:
 564                 mx31moboard_marxbot_init();
 565                 break;
 566         case MX31SMARTBOT:
 567         case MX31EYEBOT:
 568                 mx31moboard_smartbot_init(mx31moboard_baseboard);
 569                 break;
 570         default:
 571                 printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n",
 572                         mx31moboard_baseboard);
 573         }
 574 }
 575
 576 static void __init mx31moboard_timer_init(void)
 577 {
 578         mx31_clocks_init(26000000);
 579 }
 580
 581 struct sys_timer mx31moboard_timer = {
 582         .init   = mx31moboard_timer_init,
 583 };
 584
 585 static void __init mx31moboard_reserve(void)
 586 {
 587         /* reserve 4 MiB for mx3-camera */
 588         mx3_camera_base = arm_memblock_steal(MX3_CAMERA_BUF_SIZE,
 589                         MX3_CAMERA_BUF_SIZE);
 590 }
 591
 592 MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
 593         /* Maintainer: Valentin Longchamp, EPFL Mobots group */
 594         .atag_offset = 0x100,
 595         .reserve = mx31moboard_reserve,
 596         .map_io = mx31_map_io,
 597         .init_early = imx31_init_early,
 598         .init_irq = mx31_init_irq,
 599         .handle_irq = imx31_handle_irq,
 600         .timer = &mx31moboard_timer,
 601         .init_machine = mx31moboard_init,
 602         .restart        = mxc_restart,
 603 MACHINE_END