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