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 "hardware.h"
  51 #include "iomux-mx3.h"
  52 #include "ulpi.h"
  53
  54 static unsigned int moboard_pins[] = {
  55         /* UART0 */
  56         MX31_PIN_TXD1__TXD1, MX31_PIN_RXD1__RXD1,
  57         MX31_PIN_CTS1__GPIO2_7,
  58         /* UART4 */
  59         MX31_PIN_PC_RST__CTS5, MX31_PIN_PC_VS2__RTS5,
  60         MX31_PIN_PC_BVD2__TXD5, MX31_PIN_PC_BVD1__RXD5,
  61         /* I2C0 */
  62         MX31_PIN_I2C_DAT__I2C1_SDA, MX31_PIN_I2C_CLK__I2C1_SCL,
  63         /* I2C1 */
  64         MX31_PIN_DCD_DTE1__I2C2_SDA, MX31_PIN_RI_DTE1__I2C2_SCL,
  65         /* SDHC1 */
  66         MX31_PIN_SD1_DATA3__SD1_DATA3, MX31_PIN_SD1_DATA2__SD1_DATA2,
  67         MX31_PIN_SD1_DATA1__SD1_DATA1, MX31_PIN_SD1_DATA0__SD1_DATA0,
  68         MX31_PIN_SD1_CLK__SD1_CLK, MX31_PIN_SD1_CMD__SD1_CMD,
  69         MX31_PIN_ATA_CS0__GPIO3_26, MX31_PIN_ATA_CS1__GPIO3_27,
  70         /* USB reset */
  71         MX31_PIN_GPIO1_0__GPIO1_0,
  72         /* USB OTG */
  73         MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
  74         MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
  75         MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
  76         MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
  77         MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
  78         MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
  79         MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
  80         MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
  81         MX31_PIN_USBOTG_CLK__USBOTG_CLK, MX31_PIN_USBOTG_DIR__USBOTG_DIR,
  82         MX31_PIN_USBOTG_NXT__USBOTG_NXT, MX31_PIN_USBOTG_STP__USBOTG_STP,
  83         MX31_PIN_USB_OC__GPIO1_30,
  84         /* USB H2 */
  85         MX31_PIN_USBH2_DATA0__USBH2_DATA0,
  86         MX31_PIN_USBH2_DATA1__USBH2_DATA1,
  87         MX31_PIN_STXD3__USBH2_DATA2, MX31_PIN_SRXD3__USBH2_DATA3,
  88         MX31_PIN_SCK3__USBH2_DATA4, MX31_PIN_SFS3__USBH2_DATA5,
  89         MX31_PIN_STXD6__USBH2_DATA6, MX31_PIN_SRXD6__USBH2_DATA7,
  90         MX31_PIN_USBH2_CLK__USBH2_CLK, MX31_PIN_USBH2_DIR__USBH2_DIR,
  91         MX31_PIN_USBH2_NXT__USBH2_NXT, MX31_PIN_USBH2_STP__USBH2_STP,
  92         MX31_PIN_SCK6__GPIO1_25,
  93         /* LEDs */
  94         MX31_PIN_SVEN0__GPIO2_0, MX31_PIN_STX0__GPIO2_1,
  95         MX31_PIN_SRX0__GPIO2_2, MX31_PIN_SIMPD0__GPIO2_3,
  96         /* SPI1 */
  97         MX31_PIN_CSPI2_MOSI__MOSI, MX31_PIN_CSPI2_MISO__MISO,
  98         MX31_PIN_CSPI2_SCLK__SCLK, MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
  99         MX31_PIN_CSPI2_SS0__SS0, MX31_PIN_CSPI2_SS2__SS2,
 100         /* Atlas IRQ */
 101         MX31_PIN_GPIO1_3__GPIO1_3,
 102         /* SPI2 */
 103         MX31_PIN_CSPI3_MOSI__MOSI, MX31_PIN_CSPI3_MISO__MISO,
 104         MX31_PIN_CSPI3_SCLK__SCLK, MX31_PIN_CSPI3_SPI_RDY__SPI_RDY,
 105         MX31_PIN_CSPI2_SS1__CSPI3_SS1,
 106         /* SSI */
 107         MX31_PIN_STXD4__STXD4, MX31_PIN_SRXD4__SRXD4,
 108         MX31_PIN_SCK4__SCK4, MX31_PIN_SFS4__SFS4,
 109 };
 110
 111 static struct physmap_flash_data mx31moboard_flash_data = {
 112         .width  = 2,
 113 };
 114
 115 static struct resource mx31moboard_flash_resource = {
 116         .start  = 0xa0000000,
 117         .end    = 0xa1ffffff,
 118         .flags  = IORESOURCE_MEM,
 119 };
 120
 121 static struct platform_device mx31moboard_flash = {
 122         .name   = "physmap-flash",
 123         .id     = 0,
 124         .dev    = {
 125                 .platform_data  = &mx31moboard_flash_data,
 126         },
 127         .resource = &mx31moboard_flash_resource,
 128         .num_resources = 1,
 129 };
 130
 131 static void __init moboard_uart0_init(void)
 132 {
 133         if (!gpio_request(IOMUX_TO_GPIO(MX31_PIN_CTS1), "uart0-cts-hack")) {
 134                 gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_CTS1), 0);
 135                 gpio_free(IOMUX_TO_GPIO(MX31_PIN_CTS1));
 136         }
 137 }
 138
 139 static const struct imxuart_platform_data uart0_pdata __initconst = {
 140 };
 141
 142 static const struct imxuart_platform_data uart4_pdata __initconst = {
 143         .flags = IMXUART_HAVE_RTSCTS,
 144 };
 145
 146 static const struct imxi2c_platform_data moboard_i2c0_data __initconst = {
 147         .bitrate = 400000,
 148 };
 149
 150 static const struct imxi2c_platform_data moboard_i2c1_data __initconst = {
 151         .bitrate = 100000,
 152 };
 153
 154 static int moboard_spi1_cs[] = {
 155         MXC_SPI_CS(0),
 156         MXC_SPI_CS(2),
 157 };
 158
 159 static const struct spi_imx_master moboard_spi1_pdata __initconst = {
 160         .chipselect     = moboard_spi1_cs,
 161         .num_chipselect = ARRAY_SIZE(moboard_spi1_cs),
 162 };
 163
 164 static struct regulator_consumer_supply sdhc_consumers[] = {
 165         {
 166                 .dev_name = "imx31-mmc.0",
 167                 .supply = "sdhc0_vcc",
 168         },
 169         {
 170                 .dev_name = "imx31-mmc.1",
 171                 .supply = "sdhc1_vcc",
 172         },
 173 };
 174
 175 static struct regulator_init_data sdhc_vreg_data = {
 176         .constraints = {
 177                 .min_uV = 2700000,
 178                 .max_uV = 3000000,
 179                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 180                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 181                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
 182                         REGULATOR_MODE_FAST,
 183                 .always_on = 0,
 184                 .boot_on = 1,
 185         },
 186         .num_consumer_supplies = ARRAY_SIZE(sdhc_consumers),
 187         .consumer_supplies = sdhc_consumers,
 188 };
 189
 190 static struct regulator_consumer_supply cam_consumers[] = {
 191         {
 192                 .dev_name = "mx3_camera.0",
 193                 .supply = "cam_vcc",
 194         },
 195 };
 196
 197 static struct regulator_init_data cam_vreg_data = {
 198         .constraints = {
 199                 .min_uV = 2700000,
 200                 .max_uV = 3000000,
 201                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 202                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
 203                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
 204                         REGULATOR_MODE_FAST,
 205                 .always_on = 0,
 206                 .boot_on = 1,
 207         },
 208         .num_consumer_supplies = ARRAY_SIZE(cam_consumers),
 209         .consumer_supplies = cam_consumers,
 210 };
 211
 212 static struct mc13xxx_regulator_init_data moboard_regulators[] = {
 213         {
 214                 .id = MC13783_REG_VMMC1,
 215                 .init_data = &sdhc_vreg_data,
 216         },
 217         {
 218                 .id = MC13783_REG_VCAM,
 219                 .init_data = &cam_vreg_data,
 220         },
 221 };
 222
 223 static struct mc13xxx_led_platform_data moboard_led[] = {
 224         {
 225                 .id = MC13783_LED_R1,
 226                 .name = "coreboard-led-4:red",
 227         },
 228         {
 229                 .id = MC13783_LED_G1,
 230                 .name = "coreboard-led-4:green",
 231         },
 232         {
 233                 .id = MC13783_LED_B1,
 234                 .name = "coreboard-led-4:blue",
 235         },
 236         {
 237                 .id = MC13783_LED_R2,
 238                 .name = "coreboard-led-5:red",
 239         },
 240         {
 241                 .id = MC13783_LED_G2,
 242                 .name = "coreboard-led-5:green",
 243         },
 244         {
 245                 .id = MC13783_LED_B2,
 246                 .name = "coreboard-led-5:blue",
 247         },
 248 };
 249
 250 static struct mc13xxx_leds_platform_data moboard_leds = {
 251         .num_leds = ARRAY_SIZE(moboard_led),
 252         .led = moboard_led,
 253         .led_control[0] = MC13783_LED_C0_ENABLE | MC13783_LED_C0_ABMODE(0),
 254         .led_control[1] = MC13783_LED_C1_SLEWLIM,
 255         .led_control[2] = MC13783_LED_C2_SLEWLIM,
 256         .led_control[3] = MC13783_LED_C3_PERIOD(0) |
 257                           MC13783_LED_C3_CURRENT_R1(2) |
 258                           MC13783_LED_C3_CURRENT_G1(2) |
 259                           MC13783_LED_C3_CURRENT_B1(2),
 260         .led_control[4] = MC13783_LED_C4_PERIOD(0) |
 261                           MC13783_LED_C4_CURRENT_R2(3) |
 262                           MC13783_LED_C4_CURRENT_G2(3) |
 263                           MC13783_LED_C4_CURRENT_B2(3),
 264 };
 265
 266 static struct mc13xxx_buttons_platform_data moboard_buttons = {
 267         .b1on_flags = MC13783_BUTTON_DBNC_750MS | MC13783_BUTTON_ENABLE |
 268                         MC13783_BUTTON_POL_INVERT,
 269         .b1on_key = KEY_POWER,
 270 };
 271
 272 static struct mc13xxx_codec_platform_data moboard_codec = {
 273         .dac_ssi_port = MC13783_SSI1_PORT,
 274         .adc_ssi_port = MC13783_SSI1_PORT,
 275 };
 276
 277 static struct mc13xxx_platform_data moboard_pmic = {
 278         .regulators = {
 279                 .regulators = moboard_regulators,
 280                 .num_regulators = ARRAY_SIZE(moboard_regulators),
 281         },
 282         .leds = &moboard_leds,
 283         .buttons = &moboard_buttons,
 284         .codec = &moboard_codec,
 285         .flags = MC13XXX_USE_RTC | MC13XXX_USE_ADC | MC13XXX_USE_CODEC,
 286 };
 287
 288 static struct imx_ssi_platform_data moboard_ssi_pdata = {
 289         .flags = IMX_SSI_DMA | IMX_SSI_NET,
 290 };
 291
 292 static struct spi_board_info moboard_spi_board_info[] __initdata = {
 293         {
 294                 .modalias = "mc13783",
 295                 /* irq number is run-time assigned */
 296                 .max_speed_hz = 300000,
 297                 .bus_num = 1,
 298                 .chip_select = 0,
 299                 .platform_data = &moboard_pmic,
 300                 .mode = SPI_CS_HIGH,
 301         },
 302 };
 303
 304 static int moboard_spi2_cs[] = {
 305         MXC_SPI_CS(1),
 306 };
 307
 308 static const struct spi_imx_master moboard_spi2_pdata __initconst = {
 309         .chipselect     = moboard_spi2_cs,
 310         .num_chipselect = ARRAY_SIZE(moboard_spi2_cs),
 311 };
 312
 313 #define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0)
 314 #define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1)
 315
 316 static int moboard_sdhc1_get_ro(struct device *dev)
 317 {
 318         return !gpio_get_value(SDHC1_WP);
 319 }
 320
 321 static int moboard_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
 322                 void *data)
 323 {
 324         int ret;
 325
 326         ret = gpio_request(SDHC1_CD, "sdhc-detect");
 327         if (ret)
 328                 return ret;
 329
 330         gpio_direction_input(SDHC1_CD);
 331
 332         ret = gpio_request(SDHC1_WP, "sdhc-wp");
 333         if (ret)
 334                 goto err_gpio_free;
 335         gpio_direction_input(SDHC1_WP);
 336
 337         ret = request_irq(gpio_to_irq(SDHC1_CD), detect_irq,
 338                 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 339                 "sdhc1-card-detect", data);
 340         if (ret)
 341                 goto err_gpio_free_2;
 342
 343         return 0;
 344
 345 err_gpio_free_2:
 346         gpio_free(SDHC1_WP);
 347 err_gpio_free:
 348         gpio_free(SDHC1_CD);
 349
 350         return ret;
 351 }
 352
 353 static void moboard_sdhc1_exit(struct device *dev, void *data)
 354 {
 355         free_irq(gpio_to_irq(SDHC1_CD), data);
 356         gpio_free(SDHC1_WP);
 357         gpio_free(SDHC1_CD);
 358 }
 359
 360 static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
 361         .get_ro = moboard_sdhc1_get_ro,
 362         .init   = moboard_sdhc1_init,
 363         .exit   = moboard_sdhc1_exit,
 364 };
 365
 366 /*
 367  * this pin is dedicated for all mx31moboard systems, so we do it here
 368  */
 369 #define USB_RESET_B     IOMUX_TO_GPIO(MX31_PIN_GPIO1_0)
 370 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
 371                       PAD_CTL_ODE_CMOS)
 372
 373 #define OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC)
 374 #define USBH2_EN_B IOMUX_TO_GPIO(MX31_PIN_SCK6)
 375
 376 static void usb_xcvr_reset(void)
 377 {
 378         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG | PAD_CTL_100K_PD);
 379         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG | PAD_CTL_100K_PD);
 380         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG | PAD_CTL_100K_PD);
 381         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG | PAD_CTL_100K_PD);
 382         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG | PAD_CTL_100K_PD);
 383         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG | PAD_CTL_100K_PD);
 384         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG | PAD_CTL_100K_PD);
 385         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG | PAD_CTL_100K_PD);
 386         mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG | PAD_CTL_100K_PU);
 387         mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG | PAD_CTL_100K_PU);
 388         mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG | PAD_CTL_100K_PU);
 389         mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG | PAD_CTL_100K_PU);
 390
 391         mxc_iomux_set_gpr(MUX_PGP_UH2, true);
 392         mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG | PAD_CTL_100K_PU);
 393         mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG | PAD_CTL_100K_PU);
 394         mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG | PAD_CTL_100K_PU);
 395         mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG | PAD_CTL_100K_PU);
 396         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG | PAD_CTL_100K_PD);
 397         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG | PAD_CTL_100K_PD);
 398         mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG | PAD_CTL_100K_PD);
 399         mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG | PAD_CTL_100K_PD);
 400         mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG | PAD_CTL_100K_PD);
 401         mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG | PAD_CTL_100K_PD);
 402         mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG | PAD_CTL_100K_PD);
 403         mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG | PAD_CTL_100K_PD);
 404
 405         gpio_request(OTG_EN_B, "usb-udc-en");
 406         gpio_direction_output(OTG_EN_B, 0);
 407         gpio_request(USBH2_EN_B, "usbh2-en");
 408         gpio_direction_output(USBH2_EN_B, 0);
 409
 410         gpio_request(USB_RESET_B, "usb-reset");
 411         gpio_direction_output(USB_RESET_B, 0);
 412         mdelay(1);
 413         gpio_set_value(USB_RESET_B, 1);
 414         mdelay(1);
 415 }
 416
 417 static int moboard_usbh2_init_hw(struct platform_device *pdev)
 418 {
 419         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
 420 }
 421
 422 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
 423         .init   = moboard_usbh2_init_hw,
 424         .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
 425 };
 426
 427 static int __init moboard_usbh2_init(void)
 428 {
 429         struct platform_device *pdev;
 430
 431         usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 432                         ULPI_OTG_DRVVBUS_EXT);
 433         if (!usbh2_pdata.otg)
 434                 return -ENODEV;
 435
 436         pdev = imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
 437         if (IS_ERR(pdev))
 438                 return PTR_ERR(pdev);
 439
 440         return 0;
 441 }
 442
 443 static const struct gpio_led mx31moboard_leds[] __initconst = {
 444         {
 445                 .name   = "coreboard-led-0:red:running",
 446                 .default_trigger = "heartbeat",
 447                 .gpio   = IOMUX_TO_GPIO(MX31_PIN_SVEN0),
 448         }, {
 449                 .name   = "coreboard-led-1:red",
 450                 .gpio   = IOMUX_TO_GPIO(MX31_PIN_STX0),
 451         }, {
 452                 .name   = "coreboard-led-2:red",
 453                 .gpio   = IOMUX_TO_GPIO(MX31_PIN_SRX0),
 454         }, {
 455                 .name   = "coreboard-led-3:red",
 456                 .gpio   = IOMUX_TO_GPIO(MX31_PIN_SIMPD0),
 457         },
 458 };
 459
 460 static const struct gpio_led_platform_data mx31moboard_led_pdata __initconst = {
 461         .num_leds       = ARRAY_SIZE(mx31moboard_leds),
 462         .leds           = mx31moboard_leds,
 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();
 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_prepare_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_imx2_wdt();
 533
 534         moboard_uart0_init();
 535         imx31_add_imx_uart0(&uart0_pdata);
 536         imx31_add_imx_uart4(&uart4_pdata);
 537
 538         imx31_add_imx_i2c0(&moboard_i2c0_data);
 539         imx31_add_imx_i2c1(&moboard_i2c1_data);
 540
 541         imx31_add_spi_imx1(&moboard_spi1_pdata);
 542         imx31_add_spi_imx2(&moboard_spi2_pdata);
 543
 544         gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3), "pmic-irq");
 545         gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
 546         moboard_spi_board_info[0].irq =
 547                         gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
 548         spi_register_board_info(moboard_spi_board_info,
 549                 ARRAY_SIZE(moboard_spi_board_info));
 550
 551         imx31_add_mxc_mmc(0, &sdhc1_pdata);
 552
 553         mx31moboard_init_cam();
 554
 555         usb_xcvr_reset();
 556
 557         moboard_usbh2_init();
 558
 559         imx31_add_imx_ssi(0, &moboard_ssi_pdata);
 560
 561         imx_add_platform_device("imx_mc13783", 0, NULL, 0, NULL, 0);
 562
 563         pm_power_off = mx31moboard_poweroff;
 564
 565         switch (mx31moboard_baseboard) {
 566         case MX31NOBOARD:
 567                 break;
 568         case MX31DEVBOARD:
 569                 mx31moboard_devboard_init();
 570                 break;
 571         case MX31MARXBOT:
 572                 mx31moboard_marxbot_init();
 573                 break;
 574         case MX31SMARTBOT:
 575         case MX31EYEBOT:
 576                 mx31moboard_smartbot_init(mx31moboard_baseboard);
 577                 break;
 578         default:
 579                 printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n",
 580                         mx31moboard_baseboard);
 581         }
 582 }
 583
 584 static void __init mx31moboard_timer_init(void)
 585 {
 586         mx31_clocks_init(26000000);
 587 }
 588
 589 static void __init mx31moboard_reserve(void)
 590 {
 591         /* reserve 4 MiB for mx3-camera */
 592         mx3_camera_base = arm_memblock_steal(MX3_CAMERA_BUF_SIZE,
 593                         MX3_CAMERA_BUF_SIZE);
 594 }
 595
 596 MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
 597         /* Maintainer: Philippe Retornaz, EPFL Mobots group */
 598         .atag_offset = 0x100,
 599         .reserve = mx31moboard_reserve,
 600         .map_io = mx31_map_io,
 601         .init_early = imx31_init_early,
 602         .init_irq = mx31_init_irq,
 603         .init_time      = mx31moboard_timer_init,
 604         .init_machine = mx31moboard_init,
 605         .restart        = mxc_restart,
 606 MACHINE_END