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

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * armadillo5x0.c
   4  *
   5  * Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
   6  * updates in http://alberdroid.blogspot.com/
   7  *
   8  * Based on Atmark Techno, Inc. armadillo 500 BSP 2008
   9  * Based on mx31ads.c and pcm037.c Great Work!
  10  */
  11
  12 #include <linux/types.h>
  13 #include <linux/init.h>
  14 #include <linux/clk.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/gpio.h>
  17 #include <linux/smsc911x.h>
  18 #include <linux/interrupt.h>
  19 #include <linux/irq.h>
  20 #include <linux/mtd/physmap.h>
  21 #include <linux/io.h>
  22 #include <linux/input.h>
  23 #include <linux/i2c.h>
  24 #include <linux/usb/otg.h>
  25 #include <linux/usb/ulpi.h>
  26 #include <linux/delay.h>
  27 #include <linux/regulator/machine.h>
  28 #include <linux/regulator/fixed.h>
  29
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/time.h>
  33 #include <asm/memory.h>
  34 #include <asm/mach/map.h>
  35
  36 #include "common.h"
  37 #include "devices-imx31.h"
  38 #include "crmregs-imx3.h"
  39 #include "ehci.h"
  40 #include "hardware.h"
  41 #include "iomux-mx3.h"
  42 #include "ulpi.h"
  43
  44 static int armadillo5x0_pins[] = {
  45         /* UART1 */
  46         MX31_PIN_CTS1__CTS1,
  47         MX31_PIN_RTS1__RTS1,
  48         MX31_PIN_TXD1__TXD1,
  49         MX31_PIN_RXD1__RXD1,
  50         /* UART2 */
  51         MX31_PIN_CTS2__CTS2,
  52         MX31_PIN_RTS2__RTS2,
  53         MX31_PIN_TXD2__TXD2,
  54         MX31_PIN_RXD2__RXD2,
  55         /* LAN9118_IRQ */
  56         IOMUX_MODE(MX31_PIN_GPIO1_0, IOMUX_CONFIG_GPIO),
  57         /* SDHC1 */
  58         MX31_PIN_SD1_DATA3__SD1_DATA3,
  59         MX31_PIN_SD1_DATA2__SD1_DATA2,
  60         MX31_PIN_SD1_DATA1__SD1_DATA1,
  61         MX31_PIN_SD1_DATA0__SD1_DATA0,
  62         MX31_PIN_SD1_CLK__SD1_CLK,
  63         MX31_PIN_SD1_CMD__SD1_CMD,
  64         /* Framebuffer */
  65         MX31_PIN_LD0__LD0,
  66         MX31_PIN_LD1__LD1,
  67         MX31_PIN_LD2__LD2,
  68         MX31_PIN_LD3__LD3,
  69         MX31_PIN_LD4__LD4,
  70         MX31_PIN_LD5__LD5,
  71         MX31_PIN_LD6__LD6,
  72         MX31_PIN_LD7__LD7,
  73         MX31_PIN_LD8__LD8,
  74         MX31_PIN_LD9__LD9,
  75         MX31_PIN_LD10__LD10,
  76         MX31_PIN_LD11__LD11,
  77         MX31_PIN_LD12__LD12,
  78         MX31_PIN_LD13__LD13,
  79         MX31_PIN_LD14__LD14,
  80         MX31_PIN_LD15__LD15,
  81         MX31_PIN_LD16__LD16,
  82         MX31_PIN_LD17__LD17,
  83         MX31_PIN_VSYNC3__VSYNC3,
  84         MX31_PIN_HSYNC__HSYNC,
  85         MX31_PIN_FPSHIFT__FPSHIFT,
  86         MX31_PIN_DRDY0__DRDY0,
  87         IOMUX_MODE(MX31_PIN_LCS1, IOMUX_CONFIG_GPIO), /*ADV7125_PSAVE*/
  88         /* I2C2 */
  89         MX31_PIN_CSPI2_MOSI__SCL,
  90         MX31_PIN_CSPI2_MISO__SDA,
  91         /* OTG */
  92         MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
  93         MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
  94         MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
  95         MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
  96         MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
  97         MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
  98         MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
  99         MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
 100         MX31_PIN_USBOTG_CLK__USBOTG_CLK,
 101         MX31_PIN_USBOTG_DIR__USBOTG_DIR,
 102         MX31_PIN_USBOTG_NXT__USBOTG_NXT,
 103         MX31_PIN_USBOTG_STP__USBOTG_STP,
 104         /* USB host 2 */
 105         IOMUX_MODE(MX31_PIN_USBH2_CLK, IOMUX_CONFIG_FUNC),
 106         IOMUX_MODE(MX31_PIN_USBH2_DIR, IOMUX_CONFIG_FUNC),
 107         IOMUX_MODE(MX31_PIN_USBH2_NXT, IOMUX_CONFIG_FUNC),
 108         IOMUX_MODE(MX31_PIN_USBH2_STP, IOMUX_CONFIG_FUNC),
 109         IOMUX_MODE(MX31_PIN_USBH2_DATA0, IOMUX_CONFIG_FUNC),
 110         IOMUX_MODE(MX31_PIN_USBH2_DATA1, IOMUX_CONFIG_FUNC),
 111         IOMUX_MODE(MX31_PIN_STXD3, IOMUX_CONFIG_FUNC),
 112         IOMUX_MODE(MX31_PIN_SRXD3, IOMUX_CONFIG_FUNC),
 113         IOMUX_MODE(MX31_PIN_SCK3, IOMUX_CONFIG_FUNC),
 114         IOMUX_MODE(MX31_PIN_SFS3, IOMUX_CONFIG_FUNC),
 115         IOMUX_MODE(MX31_PIN_STXD6, IOMUX_CONFIG_FUNC),
 116         IOMUX_MODE(MX31_PIN_SRXD6, IOMUX_CONFIG_FUNC),
 117 };
 118
 119 /* USB */
 120
 121 #define OTG_RESET IOMUX_TO_GPIO(MX31_PIN_STXD4)
 122 #define USBH2_RESET IOMUX_TO_GPIO(MX31_PIN_SCK6)
 123 #define USBH2_CS IOMUX_TO_GPIO(MX31_PIN_GPIO1_3)
 124
 125 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
 126                         PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
 127
 128 static int usbotg_init(struct platform_device *pdev)
 129 {
 130         int err;
 131
 132         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG);
 133         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG);
 134         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG);
 135         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG);
 136         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG);
 137         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG);
 138         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG);
 139         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG);
 140         mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG);
 141         mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG);
 142         mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG);
 143         mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG);
 144
 145         /* Chip already enabled by hardware */
 146         /* OTG phy reset*/
 147         err = gpio_request(OTG_RESET, "USB-OTG-RESET");
 148         if (err) {
 149                 pr_err("Failed to request the usb otg reset gpio\n");
 150                 return err;
 151         }
 152
 153         err = gpio_direction_output(OTG_RESET, 1/*HIGH*/);
 154         if (err) {
 155                 pr_err("Failed to reset the usb otg phy\n");
 156                 goto otg_free_reset;
 157         }
 158
 159         gpio_set_value(OTG_RESET, 0/*LOW*/);
 160         mdelay(5);
 161         gpio_set_value(OTG_RESET, 1/*HIGH*/);
 162         mdelay(10);
 163
 164         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
 165                         MXC_EHCI_INTERFACE_DIFF_UNI);
 166
 167 otg_free_reset:
 168         gpio_free(OTG_RESET);
 169         return err;
 170 }
 171
 172 static int usbh2_init(struct platform_device *pdev)
 173 {
 174         int err;
 175
 176         mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
 177         mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
 178         mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
 179         mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
 180         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
 181         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
 182         mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
 183         mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
 184         mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
 185         mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
 186         mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
 187         mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
 188
 189         mxc_iomux_set_gpr(MUX_PGP_UH2, true);
 190
 191
 192         /* Enable the chip */
 193         err = gpio_request(USBH2_CS, "USB-H2-CS");
 194         if (err) {
 195                 pr_err("Failed to request the usb host 2 CS gpio\n");
 196                 return err;
 197         }
 198
 199         err = gpio_direction_output(USBH2_CS, 0/*Enabled*/);
 200         if (err) {
 201                 pr_err("Failed to drive the usb host 2 CS gpio\n");
 202                 goto h2_free_cs;
 203         }
 204
 205         /* H2 phy reset*/
 206         err = gpio_request(USBH2_RESET, "USB-H2-RESET");
 207         if (err) {
 208                 pr_err("Failed to request the usb host 2 reset gpio\n");
 209                 goto h2_free_cs;
 210         }
 211
 212         err = gpio_direction_output(USBH2_RESET, 1/*HIGH*/);
 213         if (err) {
 214                 pr_err("Failed to reset the usb host 2 phy\n");
 215                 goto h2_free_reset;
 216         }
 217
 218         gpio_set_value(USBH2_RESET, 0/*LOW*/);
 219         mdelay(5);
 220         gpio_set_value(USBH2_RESET, 1/*HIGH*/);
 221         mdelay(10);
 222
 223         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
 224                         MXC_EHCI_INTERFACE_DIFF_UNI);
 225
 226 h2_free_reset:
 227         gpio_free(USBH2_RESET);
 228 h2_free_cs:
 229         gpio_free(USBH2_CS);
 230         return err;
 231 }
 232
 233 static struct mxc_usbh_platform_data usbotg_pdata __initdata = {
 234         .init   = usbotg_init,
 235         .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
 236 };
 237
 238 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
 239         .init   = usbh2_init,
 240         .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
 241 };
 242
 243 /* RTC over I2C*/
 244 #define ARMADILLO5X0_RTC_GPIO   IOMUX_TO_GPIO(MX31_PIN_SRXD4)
 245
 246 static struct i2c_board_info armadillo5x0_i2c_rtc = {
 247         I2C_BOARD_INFO("s35390a", 0x30),
 248 };
 249
 250 /* GPIO BUTTONS */
 251 static struct gpio_keys_button armadillo5x0_buttons[] = {
 252         {
 253                 .code           = KEY_ENTER, /*28*/
 254                 .gpio           = IOMUX_TO_GPIO(MX31_PIN_SCLK0),
 255                 .active_low     = 1,
 256                 .desc           = "menu",
 257                 .wakeup         = 1,
 258         }, {
 259                 .code           = KEY_BACK, /*158*/
 260                 .gpio           = IOMUX_TO_GPIO(MX31_PIN_SRST0),
 261                 .active_low     = 1,
 262                 .desc           = "back",
 263                 .wakeup         = 1,
 264         }
 265 };
 266
 267 static const struct gpio_keys_platform_data
 268                 armadillo5x0_button_data __initconst = {
 269         .buttons        = armadillo5x0_buttons,
 270         .nbuttons       = ARRAY_SIZE(armadillo5x0_buttons),
 271 };
 272
 273 /*
 274  * NAND Flash
 275  */
 276 static const struct mxc_nand_platform_data
 277 armadillo5x0_nand_board_info __initconst = {
 278         .width          = 1,
 279         .hw_ecc         = 1,
 280 };
 281
 282 /*
 283  * MTD NOR Flash
 284  */
 285 static struct mtd_partition armadillo5x0_nor_flash_partitions[] = {
 286         {
 287                 .name           = "nor.bootloader",
 288                 .offset         = 0x00000000,
 289                 .size           = 4*32*1024,
 290         }, {
 291                 .name           = "nor.kernel",
 292                 .offset         = MTDPART_OFS_APPEND,
 293                 .size           = 16*128*1024,
 294         }, {
 295                 .name           = "nor.userland",
 296                 .offset         = MTDPART_OFS_APPEND,
 297                 .size           = 110*128*1024,
 298         }, {
 299                 .name           = "nor.config",
 300                 .offset         = MTDPART_OFS_APPEND,
 301                 .size           = 1*128*1024,
 302         },
 303 };
 304
 305 static const struct physmap_flash_data
 306                 armadillo5x0_nor_flash_pdata __initconst = {
 307         .width          = 2,
 308         .parts          = armadillo5x0_nor_flash_partitions,
 309         .nr_parts       = ARRAY_SIZE(armadillo5x0_nor_flash_partitions),
 310 };
 311
 312 static const struct resource armadillo5x0_nor_flash_resource __initconst = {
 313         .flags          = IORESOURCE_MEM,
 314         .start          = MX31_CS0_BASE_ADDR,
 315         .end            = MX31_CS0_BASE_ADDR + SZ_64M - 1,
 316 };
 317
 318 /*
 319  * FB support
 320  */
 321 static const struct fb_videomode fb_modedb[] = {
 322         {       /* 640x480 @ 60 Hz */
 323                 .name           = "CRT-VGA",
 324                 .refresh        = 60,
 325                 .xres           = 640,
 326                 .yres           = 480,
 327                 .pixclock       = 39721,
 328                 .left_margin    = 35,
 329                 .right_margin   = 115,
 330                 .upper_margin   = 43,
 331                 .lower_margin   = 1,
 332                 .hsync_len      = 10,
 333                 .vsync_len      = 1,
 334                 .sync           = FB_SYNC_OE_ACT_HIGH,
 335                 .vmode          = FB_VMODE_NONINTERLACED,
 336                 .flag           = 0,
 337         }, {/* 800x600 @ 56 Hz */
 338                 .name           = "CRT-SVGA",
 339                 .refresh        = 56,
 340                 .xres           = 800,
 341                 .yres           = 600,
 342                 .pixclock       = 30000,
 343                 .left_margin    = 30,
 344                 .right_margin   = 108,
 345                 .upper_margin   = 13,
 346                 .lower_margin   = 10,
 347                 .hsync_len      = 10,
 348                 .vsync_len      = 1,
 349                 .sync           = FB_SYNC_OE_ACT_HIGH | FB_SYNC_HOR_HIGH_ACT |
 350                                   FB_SYNC_VERT_HIGH_ACT,
 351                 .vmode          = FB_VMODE_NONINTERLACED,
 352                 .flag           = 0,
 353         },
 354 };
 355
 356 static struct mx3fb_platform_data mx3fb_pdata __initdata = {
 357         .name           = "CRT-VGA",
 358         .mode           = fb_modedb,
 359         .num_modes      = ARRAY_SIZE(fb_modedb),
 360 };
 361
 362 /*
 363  * SDHC 1
 364  * MMC support
 365  */
 366 static int armadillo5x0_sdhc1_get_ro(struct device *dev)
 367 {
 368         return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
 369 }
 370
 371 static int armadillo5x0_sdhc1_init(struct device *dev,
 372                                    irq_handler_t detect_irq, void *data)
 373 {
 374         int ret;
 375         int gpio_det, gpio_wp;
 376
 377         gpio_det = IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK);
 378         gpio_wp = IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B);
 379
 380         ret = gpio_request(gpio_det, "sdhc-card-detect");
 381         if (ret)
 382                 return ret;
 383
 384         gpio_direction_input(gpio_det);
 385
 386         ret = gpio_request(gpio_wp, "sdhc-write-protect");
 387         if (ret)
 388                 goto err_gpio_free;
 389
 390         gpio_direction_input(gpio_wp);
 391
 392         /* When supported the trigger type have to be BOTH */
 393         ret = request_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK)),
 394                           detect_irq, IRQF_TRIGGER_FALLING,
 395                           "sdhc-detect", data);
 396
 397         if (ret)
 398                 goto err_gpio_free_2;
 399
 400         return 0;
 401
 402 err_gpio_free_2:
 403         gpio_free(gpio_wp);
 404
 405 err_gpio_free:
 406         gpio_free(gpio_det);
 407
 408         return ret;
 409
 410 }
 411
 412 static void armadillo5x0_sdhc1_exit(struct device *dev, void *data)
 413 {
 414         free_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK)), data);
 415         gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK));
 416         gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
 417 }
 418
 419 static const struct imxmmc_platform_data sdhc_pdata __initconst = {
 420         .get_ro = armadillo5x0_sdhc1_get_ro,
 421         .init = armadillo5x0_sdhc1_init,
 422         .exit = armadillo5x0_sdhc1_exit,
 423 };
 424
 425 /*
 426  * SMSC 9118
 427  * Network support
 428  */
 429 static struct resource armadillo5x0_smc911x_resources[] = {
 430         {
 431                 .start  = MX31_CS3_BASE_ADDR,
 432                 .end    = MX31_CS3_BASE_ADDR + SZ_32M - 1,
 433                 .flags  = IORESOURCE_MEM,
 434         }, {
 435                 /* irq number is run-time assigned */
 436                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
 437         },
 438 };
 439
 440 static struct smsc911x_platform_config smsc911x_info = {
 441         .flags          = SMSC911X_USE_16BIT,
 442         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 443         .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
 444 };
 445
 446 static struct platform_device armadillo5x0_smc911x_device = {
 447         .name           = "smsc911x",
 448         .id             = -1,
 449         .num_resources  = ARRAY_SIZE(armadillo5x0_smc911x_resources),
 450         .resource       = armadillo5x0_smc911x_resources,
 451         .dev            = {
 452                 .platform_data = &smsc911x_info,
 453         },
 454 };
 455
 456 /* UART device data */
 457 static const struct imxuart_platform_data uart_pdata __initconst = {
 458         .flags = IMXUART_HAVE_RTSCTS,
 459 };
 460
 461 static struct platform_device *devices[] __initdata = {
 462         &armadillo5x0_smc911x_device,
 463 };
 464
 465 static struct regulator_consumer_supply dummy_supplies[] = {
 466         REGULATOR_SUPPLY("vdd33a", "smsc911x"),
 467         REGULATOR_SUPPLY("vddvario", "smsc911x"),
 468 };
 469
 470 /*
 471  * Perform board specific initializations
 472  */
 473 static void __init armadillo5x0_init(void)
 474 {
 475         imx31_soc_init();
 476
 477         mxc_iomux_setup_multiple_pins(armadillo5x0_pins,
 478                         ARRAY_SIZE(armadillo5x0_pins), "armadillo5x0");
 479
 480         regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 481
 482         imx31_add_imx_i2c1(NULL);
 483
 484         /* Register UART */
 485         imx31_add_imx_uart0(&uart_pdata);
 486         imx31_add_imx_uart1(&uart_pdata);
 487
 488         /* Register FB */
 489         imx31_add_ipu_core();
 490         imx31_add_mx3_sdc_fb(&mx3fb_pdata);
 491
 492         /* Register NOR Flash */
 493         platform_device_register_resndata(NULL, "physmap-flash", -1,
 494                         &armadillo5x0_nor_flash_resource, 1,
 495                         &armadillo5x0_nor_flash_pdata,
 496                         sizeof(armadillo5x0_nor_flash_pdata));
 497
 498         /* Register NAND Flash */
 499         imx31_add_mxc_nand(&armadillo5x0_nand_board_info);
 500
 501         /* set NAND page size to 2k if not configured via boot mode pins */
 502         imx_writel(imx_readl(mx3_ccm_base + MXC_CCM_RCSR) | (1 << 30),
 503                    mx3_ccm_base + MXC_CCM_RCSR);
 504 }
 505
 506 static void __init armadillo5x0_late(void)
 507 {
 508         armadillo5x0_smc911x_resources[1].start =
 509                 gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0));
 510         armadillo5x0_smc911x_resources[1].end =
 511                 gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_0));
 512         platform_add_devices(devices, ARRAY_SIZE(devices));
 513
 514         imx_add_gpio_keys(&armadillo5x0_button_data);
 515
 516         /* SMSC9118 IRQ pin */
 517         gpio_direction_input(MX31_PIN_GPIO1_0);
 518
 519         /* Register SDHC */
 520         imx31_add_mxc_mmc(0, &sdhc_pdata);
 521
 522         /* RTC */
 523         /* Get RTC IRQ and register the chip */
 524         if (!gpio_request(ARMADILLO5X0_RTC_GPIO, "rtc")) {
 525                 if (!gpio_direction_input(ARMADILLO5X0_RTC_GPIO))
 526                         armadillo5x0_i2c_rtc.irq =
 527                                 gpio_to_irq(ARMADILLO5X0_RTC_GPIO);
 528                 else
 529                         gpio_free(ARMADILLO5X0_RTC_GPIO);
 530         }
 531
 532         if (armadillo5x0_i2c_rtc.irq == 0)
 533                 pr_warn("armadillo5x0_init: failed to get RTC IRQ\n");
 534         i2c_register_board_info(1, &armadillo5x0_i2c_rtc, 1);
 535
 536         /* USB */
 537         usbotg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 538                         ULPI_OTG_DRVVBUS_EXT);
 539         if (usbotg_pdata.otg)
 540                 imx31_add_mxc_ehci_otg(&usbotg_pdata);
 541         usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 542                         ULPI_OTG_DRVVBUS_EXT);
 543         if (usbh2_pdata.otg)
 544                 imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
 545 }
 546
 547 static void __init armadillo5x0_timer_init(void)
 548 {
 549         mx31_clocks_init(26000000);
 550 }
 551
 552 MACHINE_START(ARMADILLO5X0, "Armadillo-500")
 553         /* Maintainer: Alberto Panizzo  */
 554         .atag_offset = 0x100,
 555         .map_io = mx31_map_io,
 556         .init_early = imx31_init_early,
 557         .init_irq = mx31_init_irq,
 558         .init_time      = armadillo5x0_timer_init,
 559         .init_machine = armadillo5x0_init,
 560         .init_late      = armadillo5x0_late,
 561         .restart        = mxc_restart,
 562 MACHINE_END