arch/arm/mach-imx/mach-armadillo5x0.c

   1 /*
   2  * armadillo5x0.c
   3  *
   4  * Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
   5  * updates in http://alberdroid.blogspot.com/
   6  *
   7  * Based on Atmark Techno, Inc. armadillo 500 BSP 2008
   8  * Based on mx31ads.c and pcm037.c Great Work!
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  23  * MA 02110-1301, USA.
  24  */
  25
  26 #include <linux/types.h>
  27 #include <linux/init.h>
  28 #include <linux/clk.h>
  29 #include <linux/platform_device.h>
  30 #include <linux/gpio.h>
  31 #include <linux/smsc911x.h>
  32 #include <linux/interrupt.h>
  33 #include <linux/irq.h>
  34 #include <linux/mtd/physmap.h>
  35 #include <linux/io.h>
  36 #include <linux/input.h>
  37 #include <linux/i2c.h>
  38 #include <linux/usb/otg.h>
  39 #include <linux/usb/ulpi.h>
  40 #include <linux/delay.h>
  41
  42 #include <mach/hardware.h>
  43 #include <asm/mach-types.h>
  44 #include <asm/mach/arch.h>
  45 #include <asm/mach/time.h>
  46 #include <asm/memory.h>
  47 #include <asm/mach/map.h>
  48
  49 #include <mach/common.h>
  50 #include <mach/iomux-mx3.h>
  51 #include <mach/ulpi.h>
  52
  53 #include "devices-imx31.h"
  54 #include "crmregs-imx31.h"
  55
  56 static int armadillo5x0_pins[] = {
  57         /* UART1 */
  58         MX31_PIN_CTS1__CTS1,
  59         MX31_PIN_RTS1__RTS1,
  60         MX31_PIN_TXD1__TXD1,
  61         MX31_PIN_RXD1__RXD1,
  62         /* UART2 */
  63         MX31_PIN_CTS2__CTS2,
  64         MX31_PIN_RTS2__RTS2,
  65         MX31_PIN_TXD2__TXD2,
  66         MX31_PIN_RXD2__RXD2,
  67         /* LAN9118_IRQ */
  68         IOMUX_MODE(MX31_PIN_GPIO1_0, IOMUX_CONFIG_GPIO),
  69         /* SDHC1 */
  70         MX31_PIN_SD1_DATA3__SD1_DATA3,
  71         MX31_PIN_SD1_DATA2__SD1_DATA2,
  72         MX31_PIN_SD1_DATA1__SD1_DATA1,
  73         MX31_PIN_SD1_DATA0__SD1_DATA0,
  74         MX31_PIN_SD1_CLK__SD1_CLK,
  75         MX31_PIN_SD1_CMD__SD1_CMD,
  76         /* Framebuffer */
  77         MX31_PIN_LD0__LD0,
  78         MX31_PIN_LD1__LD1,
  79         MX31_PIN_LD2__LD2,
  80         MX31_PIN_LD3__LD3,
  81         MX31_PIN_LD4__LD4,
  82         MX31_PIN_LD5__LD5,
  83         MX31_PIN_LD6__LD6,
  84         MX31_PIN_LD7__LD7,
  85         MX31_PIN_LD8__LD8,
  86         MX31_PIN_LD9__LD9,
  87         MX31_PIN_LD10__LD10,
  88         MX31_PIN_LD11__LD11,
  89         MX31_PIN_LD12__LD12,
  90         MX31_PIN_LD13__LD13,
  91         MX31_PIN_LD14__LD14,
  92         MX31_PIN_LD15__LD15,
  93         MX31_PIN_LD16__LD16,
  94         MX31_PIN_LD17__LD17,
  95         MX31_PIN_VSYNC3__VSYNC3,
  96         MX31_PIN_HSYNC__HSYNC,
  97         MX31_PIN_FPSHIFT__FPSHIFT,
  98         MX31_PIN_DRDY0__DRDY0,
  99         IOMUX_MODE(MX31_PIN_LCS1, IOMUX_CONFIG_GPIO), /*ADV7125_PSAVE*/
 100         /* I2C2 */
 101         MX31_PIN_CSPI2_MOSI__SCL,
 102         MX31_PIN_CSPI2_MISO__SDA,
 103         /* OTG */
 104         MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
 105         MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
 106         MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
 107         MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
 108         MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
 109         MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
 110         MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
 111         MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
 112         MX31_PIN_USBOTG_CLK__USBOTG_CLK,
 113         MX31_PIN_USBOTG_DIR__USBOTG_DIR,
 114         MX31_PIN_USBOTG_NXT__USBOTG_NXT,
 115         MX31_PIN_USBOTG_STP__USBOTG_STP,
 116         /* USB host 2 */
 117         IOMUX_MODE(MX31_PIN_USBH2_CLK, IOMUX_CONFIG_FUNC),
 118         IOMUX_MODE(MX31_PIN_USBH2_DIR, IOMUX_CONFIG_FUNC),
 119         IOMUX_MODE(MX31_PIN_USBH2_NXT, IOMUX_CONFIG_FUNC),
 120         IOMUX_MODE(MX31_PIN_USBH2_STP, IOMUX_CONFIG_FUNC),
 121         IOMUX_MODE(MX31_PIN_USBH2_DATA0, IOMUX_CONFIG_FUNC),
 122         IOMUX_MODE(MX31_PIN_USBH2_DATA1, IOMUX_CONFIG_FUNC),
 123         IOMUX_MODE(MX31_PIN_STXD3, IOMUX_CONFIG_FUNC),
 124         IOMUX_MODE(MX31_PIN_SRXD3, IOMUX_CONFIG_FUNC),
 125         IOMUX_MODE(MX31_PIN_SCK3, IOMUX_CONFIG_FUNC),
 126         IOMUX_MODE(MX31_PIN_SFS3, IOMUX_CONFIG_FUNC),
 127         IOMUX_MODE(MX31_PIN_STXD6, IOMUX_CONFIG_FUNC),
 128         IOMUX_MODE(MX31_PIN_SRXD6, IOMUX_CONFIG_FUNC),
 129 };
 130
 131 /* USB */
 132
 133 #define OTG_RESET IOMUX_TO_GPIO(MX31_PIN_STXD4)
 134 #define USBH2_RESET IOMUX_TO_GPIO(MX31_PIN_SCK6)
 135 #define USBH2_CS IOMUX_TO_GPIO(MX31_PIN_GPIO1_3)
 136
 137 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
 138                         PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
 139
 140 static int usbotg_init(struct platform_device *pdev)
 141 {
 142         int err;
 143
 144         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG);
 145         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG);
 146         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG);
 147         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG);
 148         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG);
 149         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG);
 150         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG);
 151         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG);
 152         mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG);
 153         mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG);
 154         mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG);
 155         mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG);
 156
 157         /* Chip already enabled by hardware */
 158         /* OTG phy reset*/
 159         err = gpio_request(OTG_RESET, "USB-OTG-RESET");
 160         if (err) {
 161                 pr_err("Failed to request the usb otg reset gpio\n");
 162                 return err;
 163         }
 164
 165         err = gpio_direction_output(OTG_RESET, 1/*HIGH*/);
 166         if (err) {
 167                 pr_err("Failed to reset the usb otg phy\n");
 168                 goto otg_free_reset;
 169         }
 170
 171         gpio_set_value(OTG_RESET, 0/*LOW*/);
 172         mdelay(5);
 173         gpio_set_value(OTG_RESET, 1/*HIGH*/);
 174         mdelay(10);
 175
 176         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
 177                         MXC_EHCI_INTERFACE_DIFF_UNI);
 178
 179 otg_free_reset:
 180         gpio_free(OTG_RESET);
 181         return err;
 182 }
 183
 184 static int usbh2_init(struct platform_device *pdev)
 185 {
 186         int err;
 187
 188         mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
 189         mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
 190         mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
 191         mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
 192         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
 193         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
 194         mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
 195         mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
 196         mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
 197         mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
 198         mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
 199         mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
 200
 201         mxc_iomux_set_gpr(MUX_PGP_UH2, true);
 202
 203
 204         /* Enable the chip */
 205         err = gpio_request(USBH2_CS, "USB-H2-CS");
 206         if (err) {
 207                 pr_err("Failed to request the usb host 2 CS gpio\n");
 208                 return err;
 209         }
 210
 211         err = gpio_direction_output(USBH2_CS, 0/*Enabled*/);
 212         if (err) {
 213                 pr_err("Failed to drive the usb host 2 CS gpio\n");
 214                 goto h2_free_cs;
 215         }
 216
 217         /* H2 phy reset*/
 218         err = gpio_request(USBH2_RESET, "USB-H2-RESET");
 219         if (err) {
 220                 pr_err("Failed to request the usb host 2 reset gpio\n");
 221                 goto h2_free_cs;
 222         }
 223
 224         err = gpio_direction_output(USBH2_RESET, 1/*HIGH*/);
 225         if (err) {
 226                 pr_err("Failed to reset the usb host 2 phy\n");
 227                 goto h2_free_reset;
 228         }
 229
 230         gpio_set_value(USBH2_RESET, 0/*LOW*/);
 231         mdelay(5);
 232         gpio_set_value(USBH2_RESET, 1/*HIGH*/);
 233         mdelay(10);
 234
 235         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
 236                         MXC_EHCI_INTERFACE_DIFF_UNI);
 237
 238 h2_free_reset:
 239         gpio_free(USBH2_RESET);
 240 h2_free_cs:
 241         gpio_free(USBH2_CS);
 242         return err;
 243 }
 244
 245 static struct mxc_usbh_platform_data usbotg_pdata __initdata = {
 246         .init   = usbotg_init,
 247         .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
 248 };
 249
 250 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
 251         .init   = usbh2_init,
 252         .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
 253 };
 254
 255 /* RTC over I2C*/
 256 #define ARMADILLO5X0_RTC_GPIO   IOMUX_TO_GPIO(MX31_PIN_SRXD4)
 257
 258 static struct i2c_board_info armadillo5x0_i2c_rtc = {
 259         I2C_BOARD_INFO("s35390a", 0x30),
 260 };
 261
 262 /* GPIO BUTTONS */
 263 static struct gpio_keys_button armadillo5x0_buttons[] = {
 264         {
 265                 .code           = KEY_ENTER, /*28*/
 266                 .gpio           = IOMUX_TO_GPIO(MX31_PIN_SCLK0),
 267                 .active_low     = 1,
 268                 .desc           = "menu",
 269                 .wakeup         = 1,
 270         }, {
 271                 .code           = KEY_BACK, /*158*/
 272                 .gpio           = IOMUX_TO_GPIO(MX31_PIN_SRST0),
 273                 .active_low     = 1,
 274                 .desc           = "back",
 275                 .wakeup         = 1,
 276         }
 277 };
 278
 279 static const struct gpio_keys_platform_data
 280                 armadillo5x0_button_data __initconst = {
 281         .buttons        = armadillo5x0_buttons,
 282         .nbuttons       = ARRAY_SIZE(armadillo5x0_buttons),
 283 };
 284
 285 /*
 286  * NAND Flash
 287  */
 288 static const struct mxc_nand_platform_data
 289 armadillo5x0_nand_board_info __initconst = {
 290         .width          = 1,
 291         .hw_ecc         = 1,
 292 };
 293
 294 /*
 295  * MTD NOR Flash
 296  */
 297 static struct mtd_partition armadillo5x0_nor_flash_partitions[] = {
 298         {
 299                 .name           = "nor.bootloader",
 300                 .offset         = 0x00000000,
 301                 .size           = 4*32*1024,
 302         }, {
 303                 .name           = "nor.kernel",
 304                 .offset         = MTDPART_OFS_APPEND,
 305                 .size           = 16*128*1024,
 306         }, {
 307                 .name           = "nor.userland",
 308                 .offset         = MTDPART_OFS_APPEND,
 309                 .size           = 110*128*1024,
 310         }, {
 311                 .name           = "nor.config",
 312                 .offset         = MTDPART_OFS_APPEND,
 313                 .size           = 1*128*1024,
 314         },
 315 };
 316
 317 static const struct physmap_flash_data
 318                 armadillo5x0_nor_flash_pdata __initconst = {
 319         .width          = 2,
 320         .parts          = armadillo5x0_nor_flash_partitions,
 321         .nr_parts       = ARRAY_SIZE(armadillo5x0_nor_flash_partitions),
 322 };
 323
 324 static const struct resource armadillo5x0_nor_flash_resource __initconst = {
 325         .flags          = IORESOURCE_MEM,
 326         .start          = MX31_CS0_BASE_ADDR,
 327         .end            = MX31_CS0_BASE_ADDR + SZ_64M - 1,
 328 };
 329
 330 /*
 331  * FB support
 332  */
 333 static const struct fb_videomode fb_modedb[] = {
 334         {       /* 640x480 @ 60 Hz */
 335                 .name           = "CRT-VGA",
 336                 .refresh        = 60,
 337                 .xres           = 640,
 338                 .yres           = 480,
 339                 .pixclock       = 39721,
 340                 .left_margin    = 35,
 341                 .right_margin   = 115,
 342                 .upper_margin   = 43,
 343                 .lower_margin   = 1,
 344                 .hsync_len      = 10,
 345                 .vsync_len      = 1,
 346                 .sync           = FB_SYNC_OE_ACT_HIGH,
 347                 .vmode          = FB_VMODE_NONINTERLACED,
 348                 .flag           = 0,
 349         }, {/* 800x600 @ 56 Hz */
 350                 .name           = "CRT-SVGA",
 351                 .refresh        = 56,
 352                 .xres           = 800,
 353                 .yres           = 600,
 354                 .pixclock       = 30000,
 355                 .left_margin    = 30,
 356                 .right_margin   = 108,
 357                 .upper_margin   = 13,
 358                 .lower_margin   = 10,
 359                 .hsync_len      = 10,
 360                 .vsync_len      = 1,
 361                 .sync           = FB_SYNC_OE_ACT_HIGH | FB_SYNC_HOR_HIGH_ACT |
 362                                   FB_SYNC_VERT_HIGH_ACT,
 363                 .vmode          = FB_VMODE_NONINTERLACED,
 364                 .flag           = 0,
 365         },
 366 };
 367
 368 static const struct ipu_platform_data mx3_ipu_data __initconst = {
 369         .irq_base = MXC_IPU_IRQ_START,
 370 };
 371
 372 static struct mx3fb_platform_data mx3fb_pdata __initdata = {
 373         .name           = "CRT-VGA",
 374         .mode           = fb_modedb,
 375         .num_modes      = ARRAY_SIZE(fb_modedb),
 376 };
 377
 378 /*
 379  * SDHC 1
 380  * MMC support
 381  */
 382 static int armadillo5x0_sdhc1_get_ro(struct device *dev)
 383 {
 384         return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
 385 }
 386
 387 static int armadillo5x0_sdhc1_init(struct device *dev,
 388                                    irq_handler_t detect_irq, void *data)
 389 {
 390         int ret;
 391         int gpio_det, gpio_wp;
 392
 393         gpio_det = IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK);
 394         gpio_wp = IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B);
 395
 396         ret = gpio_request(gpio_det, "sdhc-card-detect");
 397         if (ret)
 398                 return ret;
 399
 400         gpio_direction_input(gpio_det);
 401
 402         ret = gpio_request(gpio_wp, "sdhc-write-protect");
 403         if (ret)
 404                 goto err_gpio_free;
 405
 406         gpio_direction_input(gpio_wp);
 407
 408         /* When supported the trigger type have to be BOTH */
 409         ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_ATA_DMACK), detect_irq,
 410                           IRQF_DISABLED | IRQF_TRIGGER_FALLING,
 411                           "sdhc-detect", data);
 412
 413         if (ret)
 414                 goto err_gpio_free_2;
 415
 416         return 0;
 417
 418 err_gpio_free_2:
 419         gpio_free(gpio_wp);
 420
 421 err_gpio_free:
 422         gpio_free(gpio_det);
 423
 424         return ret;
 425
 426 }
 427
 428 static void armadillo5x0_sdhc1_exit(struct device *dev, void *data)
 429 {
 430         free_irq(IOMUX_TO_IRQ(MX31_PIN_ATA_DMACK), data);
 431         gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK));
 432         gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
 433 }
 434
 435 static const struct imxmmc_platform_data sdhc_pdata __initconst = {
 436         .get_ro = armadillo5x0_sdhc1_get_ro,
 437         .init = armadillo5x0_sdhc1_init,
 438         .exit = armadillo5x0_sdhc1_exit,
 439 };
 440
 441 /*
 442  * SMSC 9118
 443  * Network support
 444  */
 445 static struct resource armadillo5x0_smc911x_resources[] = {
 446         {
 447                 .start  = MX31_CS3_BASE_ADDR,
 448                 .end    = MX31_CS3_BASE_ADDR + SZ_32M - 1,
 449                 .flags  = IORESOURCE_MEM,
 450         }, {
 451                 .start  = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
 452                 .end    = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
 453                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
 454         },
 455 };
 456
 457 static struct smsc911x_platform_config smsc911x_info = {
 458         .flags          = SMSC911X_USE_16BIT,
 459         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 460         .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
 461 };
 462
 463 static struct platform_device armadillo5x0_smc911x_device = {
 464         .name           = "smsc911x",
 465         .id             = -1,
 466         .num_resources  = ARRAY_SIZE(armadillo5x0_smc911x_resources),
 467         .resource       = armadillo5x0_smc911x_resources,
 468         .dev            = {
 469                 .platform_data = &smsc911x_info,
 470         },
 471 };
 472
 473 /* UART device data */
 474 static const struct imxuart_platform_data uart_pdata __initconst = {
 475         .flags = IMXUART_HAVE_RTSCTS,
 476 };
 477
 478 static struct platform_device *devices[] __initdata = {
 479         &armadillo5x0_smc911x_device,
 480 };
 481
 482 /*
 483  * Perform board specific initializations
 484  */
 485 static void __init armadillo5x0_init(void)
 486 {
 487         imx31_soc_init();
 488
 489         mxc_iomux_setup_multiple_pins(armadillo5x0_pins,
 490                         ARRAY_SIZE(armadillo5x0_pins), "armadillo5x0");
 491
 492         platform_add_devices(devices, ARRAY_SIZE(devices));
 493         imx_add_gpio_keys(&armadillo5x0_button_data);
 494         imx31_add_imx_i2c1(NULL);
 495
 496         /* Register UART */
 497         imx31_add_imx_uart0(&uart_pdata);
 498         imx31_add_imx_uart1(&uart_pdata);
 499
 500         /* SMSC9118 IRQ pin */
 501         gpio_direction_input(MX31_PIN_GPIO1_0);
 502
 503         /* Register SDHC */
 504         imx31_add_mxc_mmc(0, &sdhc_pdata);
 505
 506         /* Register FB */
 507         imx31_add_ipu_core(&mx3_ipu_data);
 508         imx31_add_mx3_sdc_fb(&mx3fb_pdata);
 509
 510         /* Register NOR Flash */
 511         platform_device_register_resndata(NULL, "physmap-flash", -1,
 512                         &armadillo5x0_nor_flash_resource, 1,
 513                         &armadillo5x0_nor_flash_pdata,
 514                         sizeof(armadillo5x0_nor_flash_pdata));
 515
 516         /* Register NAND Flash */
 517         imx31_add_mxc_nand(&armadillo5x0_nand_board_info);
 518
 519         /* set NAND page size to 2k if not configured via boot mode pins */
 520         __raw_writel(__raw_readl(MXC_CCM_RCSR) | (1 << 30), MXC_CCM_RCSR);
 521
 522         /* RTC */
 523         /* Get RTC IRQ and register the chip */
 524         if (gpio_request(ARMADILLO5X0_RTC_GPIO, "rtc") == 0) {
 525                 if (gpio_direction_input(ARMADILLO5X0_RTC_GPIO) == 0)
 526                         armadillo5x0_i2c_rtc.irq = gpio_to_irq(ARMADILLO5X0_RTC_GPIO);
 527                 else
 528                         gpio_free(ARMADILLO5X0_RTC_GPIO);
 529         }
 530         if (armadillo5x0_i2c_rtc.irq == 0)
 531                 pr_warning("armadillo5x0_init: failed to get RTC IRQ\n");
 532         i2c_register_board_info(1, &armadillo5x0_i2c_rtc, 1);
 533
 534         /* USB */
 535
 536         usbotg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 537                         ULPI_OTG_DRVVBUS_EXT);
 538         if (usbotg_pdata.otg)
 539                 imx31_add_mxc_ehci_otg(&usbotg_pdata);
 540         usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 541                         ULPI_OTG_DRVVBUS_EXT);
 542         if (usbh2_pdata.otg)
 543                 imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
 544 }
 545
 546 static void __init armadillo5x0_timer_init(void)
 547 {
 548         mx31_clocks_init(26000000);
 549 }
 550
 551 static struct sys_timer armadillo5x0_timer = {
 552         .init   = armadillo5x0_timer_init,
 553 };
 554
 555 MACHINE_START(ARMADILLO5X0, "Armadillo-500")
 556         /* Maintainer: Alberto Panizzo  */
 557         .atag_offset = 0x100,
 558         .map_io = mx31_map_io,
 559         .init_early = imx31_init_early,
 560         .init_irq = mx31_init_irq,
 561         .timer = &armadillo5x0_timer,
 562         .init_machine = armadillo5x0_init,
 563 MACHINE_END