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 <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
  55 static 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
 112 static struct physmap_flash_data mx31moboard_flash_data = {
 113         .width  = 2,
 114 };
 115
 116 static struct resource mx31moboard_flash_resource = {
 117         .start  = 0xa0000000,
 118         .end    = 0xa1ffffff,
 119         .flags  = IORESOURCE_MEM,
 120 };
 121
 122 static 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
 132 static 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
 140 static const struct imxuart_platform_data uart0_pdata __initconst = {
 141 };
 142
 143 static const struct imxuart_platform_data uart4_pdata __initconst = {
 144         .flags = IMXUART_HAVE_RTSCTS,
 145 };
 146
 147 static const struct imxi2c_platform_data moboard_i2c0_data __initconst = {
 148         .bitrate = 400000,
 149 };
 150
 151 static const struct imxi2c_platform_data moboard_i2c1_data __initconst = {
 152         .bitrate = 100000,
 153 };
 154
 155 static const struct spi_imx_master moboard_spi1_pdata __initconst = {
 156         .num_chipselect = 3,
 157 };
 158
 159 static struct regulator_consumer_supply sdhc_consumers[] = {
 160         {
 161                 .dev_name = "imx31-mmc.0",
 162                 .supply = "sdhc0_vcc",
 163         },
 164         {
 165                 .dev_name = "imx31-mmc.1",
 166                 .supply = "sdhc1_vcc",
 167         },
 168 };
 169
 170 static struct regulator_init_data sdhc_vreg_data = {
 171         .constraints = {
 172                 .min_uV = 2700000,
 173                 .max_uV = 3000000,
 174                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 175                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 176                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
 177                         REGULATOR_MODE_FAST,
 178                 .always_on = 0,
 179                 .boot_on = 1,
 180         },
 181         .num_consumer_supplies = ARRAY_SIZE(sdhc_consumers),
 182         .consumer_supplies = sdhc_consumers,
 183 };
 184
 185 static struct regulator_consumer_supply cam_consumers[] = {
 186         {
 187                 .dev_name = "mx3_camera.0",
 188                 .supply = "cam_vcc",
 189         },
 190 };
 191
 192 static struct regulator_init_data cam_vreg_data = {
 193         .constraints = {
 194                 .min_uV = 2700000,
 195                 .max_uV = 3000000,
 196                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 197                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 198                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
 199                         REGULATOR_MODE_FAST,
 200                 .always_on = 0,
 201                 .boot_on = 1,
 202         },
 203         .num_consumer_supplies = ARRAY_SIZE(cam_consumers),
 204         .consumer_supplies = cam_consumers,
 205 };
 206
 207 static struct mc13xxx_regulator_init_data moboard_regulators[] = {
 208         {
 209                 .id = MC13783_REG_VMMC1,
 210                 .init_data = &sdhc_vreg_data,
 211         },
 212         {
 213                 .id = MC13783_REG_VCAM,
 214                 .init_data = &cam_vreg_data,
 215         },
 216 };
 217
 218 static struct mc13xxx_led_platform_data moboard_led[] = {
 219         {
 220                 .id = MC13783_LED_R1,
 221                 .name = "coreboard-led-4:red",
 222         },
 223         {
 224                 .id = MC13783_LED_G1,
 225                 .name = "coreboard-led-4:green",
 226         },
 227         {
 228                 .id = MC13783_LED_B1,
 229                 .name = "coreboard-led-4:blue",
 230         },
 231         {
 232                 .id = MC13783_LED_R2,
 233                 .name = "coreboard-led-5:red",
 234         },
 235         {
 236                 .id = MC13783_LED_G2,
 237                 .name = "coreboard-led-5:green",
 238         },
 239         {
 240                 .id = MC13783_LED_B2,
 241                 .name = "coreboard-led-5:blue",
 242         },
 243 };
 244
 245 static struct mc13xxx_leds_platform_data moboard_leds = {
 246         .num_leds = ARRAY_SIZE(moboard_led),
 247         .led = moboard_led,
 248         .led_control[0] = MC13783_LED_C0_ENABLE | MC13783_LED_C0_ABMODE(0),
 249         .led_control[1] = MC13783_LED_C1_SLEWLIM,
 250         .led_control[2] = MC13783_LED_C2_SLEWLIM,
 251         .led_control[3] = MC13783_LED_C3_PERIOD(0) |
 252                           MC13783_LED_C3_CURRENT_R1(2) |
 253                           MC13783_LED_C3_CURRENT_G1(2) |
 254                           MC13783_LED_C3_CURRENT_B1(2),
 255         .led_control[4] = MC13783_LED_C4_PERIOD(0) |
 256                           MC13783_LED_C4_CURRENT_R2(3) |
 257                           MC13783_LED_C4_CURRENT_G2(3) |
 258                           MC13783_LED_C4_CURRENT_B2(3),
 259 };
 260
 261 static struct mc13xxx_buttons_platform_data moboard_buttons = {
 262         .b1on_flags = MC13783_BUTTON_DBNC_750MS | MC13783_BUTTON_ENABLE |
 263                         MC13783_BUTTON_POL_INVERT,
 264         .b1on_key = KEY_POWER,
 265 };
 266
 267 static struct mc13xxx_codec_platform_data moboard_codec = {
 268         .dac_ssi_port = MC13783_SSI1_PORT,
 269         .adc_ssi_port = MC13783_SSI1_PORT,
 270 };
 271
 272 static struct mc13xxx_platform_data moboard_pmic = {
 273         .regulators = {
 274                 .regulators = moboard_regulators,
 275                 .num_regulators = ARRAY_SIZE(moboard_regulators),
 276         },
 277         .leds = &moboard_leds,
 278         .buttons = &moboard_buttons,
 279         .codec = &moboard_codec,
 280         .flags = MC13XXX_USE_RTC | MC13XXX_USE_ADC | MC13XXX_USE_CODEC,
 281 };
 282
 283 static struct imx_ssi_platform_data moboard_ssi_pdata = {
 284         .flags = IMX_SSI_DMA | IMX_SSI_NET,
 285 };
 286
 287 static struct spi_board_info moboard_spi_board_info[] __initdata = {
 288         {
 289                 .modalias = "mc13783",
 290                 /* irq number is run-time assigned */
 291                 .max_speed_hz = 300000,
 292                 .bus_num = 1,
 293                 .chip_select = 0,
 294                 .platform_data = &moboard_pmic,
 295                 .mode = SPI_CS_HIGH,
 296         },
 297 };
 298
 299 static const struct spi_imx_master moboard_spi2_pdata __initconst = {
 300         .num_chipselect = 2,
 301 };
 302
 303 #define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0)
 304 #define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1)
 305
 306 static int moboard_sdhc1_get_ro(struct device *dev)
 307 {
 308         return !gpio_get_value(SDHC1_WP);
 309 }
 310
 311 static int moboard_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
 312                 void *data)
 313 {
 314         int ret;
 315
 316         ret = gpio_request(SDHC1_CD, "sdhc-detect");
 317         if (ret)
 318                 return ret;
 319
 320         gpio_direction_input(SDHC1_CD);
 321
 322         ret = gpio_request(SDHC1_WP, "sdhc-wp");
 323         if (ret)
 324                 goto err_gpio_free;
 325         gpio_direction_input(SDHC1_WP);
 326
 327         ret = request_irq(gpio_to_irq(SDHC1_CD), detect_irq,
 328                 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 329                 "sdhc1-card-detect", data);
 330         if (ret)
 331                 goto err_gpio_free_2;
 332
 333         return 0;
 334
 335 err_gpio_free_2:
 336         gpio_free(SDHC1_WP);
 337 err_gpio_free:
 338         gpio_free(SDHC1_CD);
 339
 340         return ret;
 341 }
 342
 343 static void moboard_sdhc1_exit(struct device *dev, void *data)
 344 {
 345         free_irq(gpio_to_irq(SDHC1_CD), data);
 346         gpio_free(SDHC1_WP);
 347         gpio_free(SDHC1_CD);
 348 }
 349
 350 static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
 351         .get_ro = moboard_sdhc1_get_ro,
 352         .init   = moboard_sdhc1_init,
 353         .exit   = moboard_sdhc1_exit,
 354 };
 355
 356 /*
 357  * this pin is dedicated for all mx31moboard systems, so we do it here
 358  */
 359 #define USB_RESET_B     IOMUX_TO_GPIO(MX31_PIN_GPIO1_0)
 360 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
 361                       PAD_CTL_ODE_CMOS)
 362
 363 #define OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC)
 364 #define USBH2_EN_B IOMUX_TO_GPIO(MX31_PIN_SCK6)
 365
 366 static void usb_xcvr_reset(void)
 367 {
 368         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG | PAD_CTL_100K_PD);
 369         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG | PAD_CTL_100K_PD);
 370         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG | PAD_CTL_100K_PD);
 371         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG | PAD_CTL_100K_PD);
 372         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG | PAD_CTL_100K_PD);
 373         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG | PAD_CTL_100K_PD);
 374         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG | PAD_CTL_100K_PD);
 375         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG | PAD_CTL_100K_PD);
 376         mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG | PAD_CTL_100K_PU);
 377         mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG | PAD_CTL_100K_PU);
 378         mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG | PAD_CTL_100K_PU);
 379         mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG | PAD_CTL_100K_PU);
 380
 381         mxc_iomux_set_gpr(MUX_PGP_UH2, true);
 382         mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG | PAD_CTL_100K_PU);
 383         mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG | PAD_CTL_100K_PU);
 384         mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG | PAD_CTL_100K_PU);
 385         mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG | PAD_CTL_100K_PU);
 386         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG | PAD_CTL_100K_PD);
 387         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG | PAD_CTL_100K_PD);
 388         mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG | PAD_CTL_100K_PD);
 389         mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG | PAD_CTL_100K_PD);
 390         mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG | PAD_CTL_100K_PD);
 391         mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG | PAD_CTL_100K_PD);
 392         mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG | PAD_CTL_100K_PD);
 393         mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG | PAD_CTL_100K_PD);
 394
 395         gpio_request(OTG_EN_B, "usb-udc-en");
 396         gpio_direction_output(OTG_EN_B, 0);
 397         gpio_request(USBH2_EN_B, "usbh2-en");
 398         gpio_direction_output(USBH2_EN_B, 0);
 399
 400         gpio_request(USB_RESET_B, "usb-reset");
 401         gpio_direction_output(USB_RESET_B, 0);
 402         mdelay(1);
 403         gpio_set_value(USB_RESET_B, 1);
 404         mdelay(1);
 405 }
 406
 407 static int moboard_usbh2_init_hw(struct platform_device *pdev)
 408 {
 409         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
 410 }
 411
 412 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
 413         .init   = moboard_usbh2_init_hw,
 414         .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
 415 };
 416
 417 static int __init moboard_usbh2_init(void)
 418 {
 419         struct platform_device *pdev;
 420
 421         usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 422                         ULPI_OTG_DRVVBUS_EXT);
 423         if (!usbh2_pdata.otg)
 424                 return -ENODEV;
 425
 426         pdev = imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
 427
 428         return PTR_ERR_OR_ZERO(pdev);
 429 }
 430
 431 static const struct gpio_led mx31moboard_leds[] __initconst = {
 432         {
 433                 .name   = "coreboard-led-0:red:running",
 434                 .default_trigger = "heartbeat",
 435                 .gpio   = IOMUX_TO_GPIO(MX31_PIN_SVEN0),
 436         }, {
 437                 .name   = "coreboard-led-1:red",
 438                 .gpio   = IOMUX_TO_GPIO(MX31_PIN_STX0),
 439         }, {
 440                 .name   = "coreboard-led-2:red",
 441                 .gpio   = IOMUX_TO_GPIO(MX31_PIN_SRX0),
 442         }, {
 443                 .name   = "coreboard-led-3:red",
 444                 .gpio   = IOMUX_TO_GPIO(MX31_PIN_SIMPD0),
 445         },
 446 };
 447
 448 static const struct gpio_led_platform_data mx31moboard_led_pdata __initconst = {
 449         .num_leds       = ARRAY_SIZE(mx31moboard_leds),
 450         .leds           = mx31moboard_leds,
 451 };
 452
 453 static struct platform_device *devices[] __initdata = {
 454         &mx31moboard_flash,
 455 };
 456
 457 static struct mx3_camera_pdata camera_pdata __initdata = {
 458         .flags          = MX3_CAMERA_DATAWIDTH_8 | MX3_CAMERA_DATAWIDTH_10,
 459         .mclk_10khz     = 4800,
 460 };
 461
 462 static phys_addr_t mx3_camera_base __initdata;
 463 #define MX3_CAMERA_BUF_SIZE SZ_4M
 464
 465 static int __init mx31moboard_init_cam(void)
 466 {
 467         int ret;
 468         struct platform_device *pdev;
 469
 470         imx31_add_ipu_core();
 471
 472         pdev = imx31_alloc_mx3_camera(&camera_pdata);
 473         if (IS_ERR(pdev))
 474                 return PTR_ERR(pdev);
 475
 476         ret = dma_declare_coherent_memory(&pdev->dev,
 477                                           mx3_camera_base, mx3_camera_base,
 478                                           MX3_CAMERA_BUF_SIZE);
 479         if (ret)
 480                 goto err;
 481
 482         ret = platform_device_add(pdev);
 483         if (ret)
 484 err:
 485                 platform_device_put(pdev);
 486
 487         return ret;
 488
 489 }
 490
 491 static void mx31moboard_poweroff(void)
 492 {
 493         struct clk *clk = clk_get_sys("imx2-wdt.0", NULL);
 494
 495         if (!IS_ERR(clk))
 496                 clk_prepare_enable(clk);
 497
 498         mxc_iomux_mode(MX31_PIN_WATCHDOG_RST__WATCHDOG_RST);
 499
 500         imx_writew(1 << 6 | 1 << 2, MX31_IO_ADDRESS(MX31_WDOG_BASE_ADDR));
 501 }
 502
 503 static int mx31moboard_baseboard;
 504 core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444);
 505
 506 /*
 507  * Board specific initialization.
 508  */
 509 static void __init mx31moboard_init(void)
 510 {
 511         imx31_soc_init();
 512
 513         mxc_iomux_setup_multiple_pins(moboard_pins, ARRAY_SIZE(moboard_pins),
 514                 "moboard");
 515
 516         platform_add_devices(devices, ARRAY_SIZE(devices));
 517
 518         imx31_add_imx2_wdt();
 519
 520         imx31_add_imx_uart0(&uart0_pdata);
 521         imx31_add_imx_uart4(&uart4_pdata);
 522
 523         imx31_add_imx_i2c0(&moboard_i2c0_data);
 524         imx31_add_imx_i2c1(&moboard_i2c1_data);
 525
 526         imx31_add_spi_imx1(&moboard_spi1_pdata);
 527         imx31_add_spi_imx2(&moboard_spi2_pdata);
 528
 529         mx31moboard_init_cam();
 530
 531         imx31_add_imx_ssi(0, &moboard_ssi_pdata);
 532
 533         pm_power_off = mx31moboard_poweroff;
 534 }
 535
 536 static void __init mx31moboard_late(void)
 537 {
 538         gpio_led_register_device(-1, &mx31moboard_led_pdata);
 539
 540         moboard_uart0_init();
 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         moboard_spi_board_info[0].irq =
 545                         gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
 546         spi_register_board_info(moboard_spi_board_info,
 547                 ARRAY_SIZE(moboard_spi_board_info));
 548
 549         imx31_add_mxc_mmc(0, &sdhc1_pdata);
 550
 551         usb_xcvr_reset();
 552         moboard_usbh2_init();
 553
 554         imx_add_platform_device("imx_mc13783", 0, NULL, 0, NULL, 0);
 555
 556         switch (mx31moboard_baseboard) {
 557         case MX31NOBOARD:
 558                 break;
 559         case MX31DEVBOARD:
 560                 mx31moboard_devboard_init();
 561                 break;
 562         case MX31MARXBOT:
 563                 mx31moboard_marxbot_init();
 564                 break;
 565         case MX31SMARTBOT:
 566         case MX31EYEBOT:
 567                 mx31moboard_smartbot_init(mx31moboard_baseboard);
 568                 break;
 569         default:
 570                 printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n",
 571                         mx31moboard_baseboard);
 572         }
 573 }
 574
 575 static void __init mx31moboard_timer_init(void)
 576 {
 577         mx31_clocks_init(26000000);
 578 }
 579
 580 static void __init mx31moboard_reserve(void)
 581 {
 582         /* reserve 4 MiB for mx3-camera */
 583         mx3_camera_base = arm_memblock_steal(MX3_CAMERA_BUF_SIZE,
 584                         MX3_CAMERA_BUF_SIZE);
 585 }
 586
 587 MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
 588         /* Maintainer: Philippe Retornaz, EPFL Mobots group */
 589         .atag_offset = 0x100,
 590         .reserve = mx31moboard_reserve,
 591         .map_io = mx31_map_io,
 592         .init_early = imx31_init_early,
 593         .init_irq = mx31_init_irq,
 594         .init_time      = mx31moboard_timer_init,
 595         .init_machine = mx31moboard_init,
 596         .init_late      = mx31moboard_late,
 597         .restart        = mxc_restart,
 598 MACHINE_END