arch/arm/mach-shmobile/board-kzm9g.c

   1 /*
   2  * KZM-A9-GT board support
   3  *
   4  * Copyright (C) 2012   Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; version 2 of the License.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18  */
  19
  20 #include <linux/delay.h>
  21 #include <linux/gpio.h>
  22 #include <linux/gpio_keys.h>
  23 #include <linux/io.h>
  24 #include <linux/irq.h>
  25 #include <linux/i2c.h>
  26 #include <linux/i2c/pcf857x.h>
  27 #include <linux/input.h>
  28 #include <linux/irqchip/arm-gic.h>
  29 #include <linux/mmc/host.h>
  30 #include <linux/mmc/sh_mmcif.h>
  31 #include <linux/mmc/sh_mobile_sdhi.h>
  32 #include <linux/mfd/tmio.h>
  33 #include <linux/platform_device.h>
  34 #include <linux/regulator/fixed.h>
  35 #include <linux/regulator/machine.h>
  36 #include <linux/smsc911x.h>
  37 #include <linux/usb/r8a66597.h>
  38 #include <linux/usb/renesas_usbhs.h>
  39 #include <linux/videodev2.h>
  40 #include <sound/sh_fsi.h>
  41 #include <sound/simple_card.h>
  42 #include <mach/irqs.h>
  43 #include <mach/sh73a0.h>
  44 #include <mach/common.h>
  45 #include <asm/hardware/cache-l2x0.h>
  46 #include <asm/mach-types.h>
  47 #include <asm/mach/arch.h>
  48 #include <video/sh_mobile_lcdc.h>
  49
  50 /*
  51  * external GPIO
  52  */
  53 #define GPIO_PCF8575_BASE       (GPIO_NR)
  54 #define GPIO_PCF8575_PORT10     (GPIO_NR + 8)
  55 #define GPIO_PCF8575_PORT11     (GPIO_NR + 9)
  56 #define GPIO_PCF8575_PORT12     (GPIO_NR + 10)
  57 #define GPIO_PCF8575_PORT13     (GPIO_NR + 11)
  58 #define GPIO_PCF8575_PORT14     (GPIO_NR + 12)
  59 #define GPIO_PCF8575_PORT15     (GPIO_NR + 13)
  60 #define GPIO_PCF8575_PORT16     (GPIO_NR + 14)
  61
  62 /* Dummy supplies, where voltage doesn't matter */
  63 static struct regulator_consumer_supply dummy_supplies[] = {
  64         REGULATOR_SUPPLY("vddvario", "smsc911x"),
  65         REGULATOR_SUPPLY("vdd33a", "smsc911x"),
  66 };
  67
  68 /*
  69  * FSI-AK4648
  70  *
  71  * this command is required when playback.
  72  *
  73  * # amixer set "LINEOUT Mixer DACL" on
  74  */
  75
  76 /* SMSC 9221 */
  77 static struct resource smsc9221_resources[] = {
  78         [0] = {
  79                 .start  = 0x10000000, /* CS4 */
  80                 .end    = 0x100000ff,
  81                 .flags  = IORESOURCE_MEM,
  82         },
  83         [1] = {
  84                 .start  = irq_pin(3), /* IRQ3 */
  85                 .flags  = IORESOURCE_IRQ,
  86         },
  87 };
  88
  89 static struct smsc911x_platform_config smsc9221_platdata = {
  90         .flags          = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
  91         .phy_interface  = PHY_INTERFACE_MODE_MII,
  92         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
  93         .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
  94 };
  95
  96 static struct platform_device smsc_device = {
  97         .name           = "smsc911x",
  98         .dev  = {
  99                 .platform_data = &smsc9221_platdata,
 100         },
 101         .resource       = smsc9221_resources,
 102         .num_resources  = ARRAY_SIZE(smsc9221_resources),
 103 };
 104
 105 /* USB external chip */
 106 static struct r8a66597_platdata usb_host_data = {
 107         .on_chip        = 0,
 108         .xtal           = R8A66597_PLATDATA_XTAL_48MHZ,
 109 };
 110
 111 static struct resource usb_resources[] = {
 112         [0] = {
 113                 .start  = 0x10010000,
 114                 .end    = 0x1001ffff - 1,
 115                 .flags  = IORESOURCE_MEM,
 116         },
 117         [1] = {
 118                 .start  = irq_pin(1), /* IRQ1 */
 119                 .flags  = IORESOURCE_IRQ,
 120         },
 121 };
 122
 123 static struct platform_device usb_host_device = {
 124         .name   = "r8a66597_hcd",
 125         .dev = {
 126                 .platform_data          = &usb_host_data,
 127                 .dma_mask               = NULL,
 128                 .coherent_dma_mask      = 0xffffffff,
 129         },
 130         .num_resources  = ARRAY_SIZE(usb_resources),
 131         .resource       = usb_resources,
 132 };
 133
 134 /* USB Func CN17 */
 135 struct usbhs_private {
 136         void __iomem *phy;
 137         void __iomem *cr2;
 138         struct renesas_usbhs_platform_info info;
 139 };
 140
 141 #define IRQ15                   irq_pin(15)
 142 #define USB_PHY_MODE            (1 << 4)
 143 #define USB_PHY_INT_EN          ((1 << 3) | (1 << 2))
 144 #define USB_PHY_ON              (1 << 1)
 145 #define USB_PHY_OFF             (1 << 0)
 146 #define USB_PHY_INT_CLR         (USB_PHY_ON | USB_PHY_OFF)
 147
 148 #define usbhs_get_priv(pdev) \
 149         container_of(renesas_usbhs_get_info(pdev), struct usbhs_private, info)
 150
 151 static int usbhs_get_vbus(struct platform_device *pdev)
 152 {
 153         struct usbhs_private *priv = usbhs_get_priv(pdev);
 154
 155         return !((1 << 7) & __raw_readw(priv->cr2));
 156 }
 157
 158 static int usbhs_phy_reset(struct platform_device *pdev)
 159 {
 160         struct usbhs_private *priv = usbhs_get_priv(pdev);
 161
 162         /* init phy */
 163         __raw_writew(0x8a0a, priv->cr2);
 164
 165         return 0;
 166 }
 167
 168 static int usbhs_get_id(struct platform_device *pdev)
 169 {
 170         return USBHS_GADGET;
 171 }
 172
 173 static irqreturn_t usbhs_interrupt(int irq, void *data)
 174 {
 175         struct platform_device *pdev = data;
 176         struct usbhs_private *priv = usbhs_get_priv(pdev);
 177
 178         renesas_usbhs_call_notify_hotplug(pdev);
 179
 180         /* clear status */
 181         __raw_writew(__raw_readw(priv->phy) | USB_PHY_INT_CLR, priv->phy);
 182
 183         return IRQ_HANDLED;
 184 }
 185
 186 static int usbhs_hardware_init(struct platform_device *pdev)
 187 {
 188         struct usbhs_private *priv = usbhs_get_priv(pdev);
 189         int ret;
 190
 191         /* clear interrupt status */
 192         __raw_writew(USB_PHY_MODE | USB_PHY_INT_CLR, priv->phy);
 193
 194         ret = request_irq(IRQ15, usbhs_interrupt, IRQF_TRIGGER_HIGH,
 195                           dev_name(&pdev->dev), pdev);
 196         if (ret) {
 197                 dev_err(&pdev->dev, "request_irq err\n");
 198                 return ret;
 199         }
 200
 201         /* enable USB phy interrupt */
 202         __raw_writew(USB_PHY_MODE | USB_PHY_INT_EN, priv->phy);
 203
 204         return 0;
 205 }
 206
 207 static int usbhs_hardware_exit(struct platform_device *pdev)
 208 {
 209         struct usbhs_private *priv = usbhs_get_priv(pdev);
 210
 211         /* clear interrupt status */
 212         __raw_writew(USB_PHY_MODE | USB_PHY_INT_CLR, priv->phy);
 213
 214         free_irq(IRQ15, pdev);
 215
 216         return 0;
 217 }
 218
 219 static u32 usbhs_pipe_cfg[] = {
 220         USB_ENDPOINT_XFER_CONTROL,
 221         USB_ENDPOINT_XFER_ISOC,
 222         USB_ENDPOINT_XFER_ISOC,
 223         USB_ENDPOINT_XFER_BULK,
 224         USB_ENDPOINT_XFER_BULK,
 225         USB_ENDPOINT_XFER_BULK,
 226         USB_ENDPOINT_XFER_INT,
 227         USB_ENDPOINT_XFER_INT,
 228         USB_ENDPOINT_XFER_INT,
 229         USB_ENDPOINT_XFER_BULK,
 230         USB_ENDPOINT_XFER_BULK,
 231         USB_ENDPOINT_XFER_BULK,
 232         USB_ENDPOINT_XFER_BULK,
 233         USB_ENDPOINT_XFER_BULK,
 234         USB_ENDPOINT_XFER_BULK,
 235         USB_ENDPOINT_XFER_BULK,
 236 };
 237
 238 static struct usbhs_private usbhs_private = {
 239         .phy    = IOMEM(0xe60781e0),            /* USBPHYINT */
 240         .cr2    = IOMEM(0xe605810c),            /* USBCR2 */
 241         .info = {
 242                 .platform_callback = {
 243                         .hardware_init  = usbhs_hardware_init,
 244                         .hardware_exit  = usbhs_hardware_exit,
 245                         .get_id         = usbhs_get_id,
 246                         .phy_reset      = usbhs_phy_reset,
 247                         .get_vbus       = usbhs_get_vbus,
 248                 },
 249                 .driver_param = {
 250                         .buswait_bwait  = 4,
 251                         .has_otg        = 1,
 252                         .pipe_type      = usbhs_pipe_cfg,
 253                         .pipe_size      = ARRAY_SIZE(usbhs_pipe_cfg),
 254                 },
 255         },
 256 };
 257
 258 static struct resource usbhs_resources[] = {
 259         [0] = {
 260                 .start  = 0xE6890000,
 261                 .end    = 0xE68900e6 - 1,
 262                 .flags  = IORESOURCE_MEM,
 263         },
 264         [1] = {
 265                 .start  = gic_spi(62),
 266                 .end    = gic_spi(62),
 267                 .flags  = IORESOURCE_IRQ,
 268         },
 269 };
 270
 271 static struct platform_device usbhs_device = {
 272         .name   = "renesas_usbhs",
 273         .id     = -1,
 274         .dev = {
 275                 .dma_mask               = NULL,
 276                 .coherent_dma_mask      = 0xffffffff,
 277                 .platform_data          = &usbhs_private.info,
 278         },
 279         .num_resources  = ARRAY_SIZE(usbhs_resources),
 280         .resource       = usbhs_resources,
 281 };
 282
 283 /* LCDC */
 284 static struct fb_videomode kzm_lcdc_mode = {
 285         .name           = "WVGA Panel",
 286         .xres           = 800,
 287         .yres           = 480,
 288         .left_margin    = 220,
 289         .right_margin   = 110,
 290         .hsync_len      = 70,
 291         .upper_margin   = 20,
 292         .lower_margin   = 5,
 293         .vsync_len      = 5,
 294         .sync           = 0,
 295 };
 296
 297 static struct sh_mobile_lcdc_info lcdc_info = {
 298         .clock_source = LCDC_CLK_BUS,
 299         .ch[0] = {
 300                 .chan           = LCDC_CHAN_MAINLCD,
 301                 .fourcc         = V4L2_PIX_FMT_RGB565,
 302                 .interface_type = RGB24,
 303                 .lcd_modes      = &kzm_lcdc_mode,
 304                 .num_modes      = 1,
 305                 .clock_divider  = 5,
 306                 .flags          = 0,
 307                 .panel_cfg = {
 308                         .width  = 152,
 309                         .height = 91,
 310                 },
 311         }
 312 };
 313
 314 static struct resource lcdc_resources[] = {
 315         [0] = {
 316                 .name   = "LCDC",
 317                 .start  = 0xfe940000,
 318                 .end    = 0xfe943fff,
 319                 .flags  = IORESOURCE_MEM,
 320         },
 321         [1] = {
 322                 .start  = intcs_evt2irq(0x580),
 323                 .flags  = IORESOURCE_IRQ,
 324         },
 325 };
 326
 327 static struct platform_device lcdc_device = {
 328         .name           = "sh_mobile_lcdc_fb",
 329         .num_resources  = ARRAY_SIZE(lcdc_resources),
 330         .resource       = lcdc_resources,
 331         .dev    = {
 332                 .platform_data  = &lcdc_info,
 333                 .coherent_dma_mask = ~0,
 334         },
 335 };
 336
 337 /* Fixed 1.8V regulator to be used by MMCIF */
 338 static struct regulator_consumer_supply fixed1v8_power_consumers[] =
 339 {
 340         REGULATOR_SUPPLY("vmmc", "sh_mmcif.0"),
 341         REGULATOR_SUPPLY("vqmmc", "sh_mmcif.0"),
 342 };
 343
 344 /* MMCIF */
 345 static struct resource sh_mmcif_resources[] = {
 346         [0] = {
 347                 .name   = "MMCIF",
 348                 .start  = 0xe6bd0000,
 349                 .end    = 0xe6bd00ff,
 350                 .flags  = IORESOURCE_MEM,
 351         },
 352         [1] = {
 353                 .start  = gic_spi(140),
 354                 .flags  = IORESOURCE_IRQ,
 355         },
 356         [2] = {
 357                 .start  = gic_spi(141),
 358                 .flags  = IORESOURCE_IRQ,
 359         },
 360 };
 361
 362 static struct sh_mmcif_plat_data sh_mmcif_platdata = {
 363         .ocr            = MMC_VDD_165_195,
 364         .caps           = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
 365         .slave_id_tx    = SHDMA_SLAVE_MMCIF_TX,
 366         .slave_id_rx    = SHDMA_SLAVE_MMCIF_RX,
 367 };
 368
 369 static struct platform_device mmc_device = {
 370         .name           = "sh_mmcif",
 371         .dev            = {
 372                 .dma_mask               = NULL,
 373                 .coherent_dma_mask      = 0xffffffff,
 374                 .platform_data          = &sh_mmcif_platdata,
 375         },
 376         .num_resources  = ARRAY_SIZE(sh_mmcif_resources),
 377         .resource       = sh_mmcif_resources,
 378 };
 379
 380 /* Fixed 2.8V regulators to be used by SDHI0 and SDHI2 */
 381 static struct regulator_consumer_supply fixed2v8_power_consumers[] =
 382 {
 383         REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"),
 384         REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.0"),
 385         REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.2"),
 386         REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.2"),
 387 };
 388
 389 /* SDHI */
 390 static struct sh_mobile_sdhi_info sdhi0_info = {
 391         .dma_slave_tx   = SHDMA_SLAVE_SDHI0_TX,
 392         .dma_slave_rx   = SHDMA_SLAVE_SDHI0_RX,
 393         .tmio_flags     = TMIO_MMC_HAS_IDLE_WAIT,
 394         .tmio_caps      = MMC_CAP_SD_HIGHSPEED,
 395         .tmio_ocr_mask  = MMC_VDD_27_28 | MMC_VDD_28_29,
 396 };
 397
 398 static struct resource sdhi0_resources[] = {
 399         [0] = {
 400                 .name   = "SDHI0",
 401                 .start  = 0xee100000,
 402                 .end    = 0xee1000ff,
 403                 .flags  = IORESOURCE_MEM,
 404         },
 405         [1] = {
 406                 .name   = SH_MOBILE_SDHI_IRQ_CARD_DETECT,
 407                 .start  = gic_spi(83),
 408                 .flags  = IORESOURCE_IRQ,
 409         },
 410         [2] = {
 411                 .name   = SH_MOBILE_SDHI_IRQ_SDCARD,
 412                 .start  = gic_spi(84),
 413                 .flags  = IORESOURCE_IRQ,
 414         },
 415         [3] = {
 416                 .name   = SH_MOBILE_SDHI_IRQ_SDIO,
 417                 .start  = gic_spi(85),
 418                 .flags  = IORESOURCE_IRQ,
 419         },
 420 };
 421
 422 static struct platform_device sdhi0_device = {
 423         .name           = "sh_mobile_sdhi",
 424         .num_resources  = ARRAY_SIZE(sdhi0_resources),
 425         .resource       = sdhi0_resources,
 426         .dev    = {
 427                 .platform_data  = &sdhi0_info,
 428         },
 429 };
 430
 431 /* Micro SD */
 432 static struct sh_mobile_sdhi_info sdhi2_info = {
 433         .dma_slave_tx   = SHDMA_SLAVE_SDHI2_TX,
 434         .dma_slave_rx   = SHDMA_SLAVE_SDHI2_RX,
 435         .tmio_flags     = TMIO_MMC_HAS_IDLE_WAIT |
 436                           TMIO_MMC_USE_GPIO_CD |
 437                           TMIO_MMC_WRPROTECT_DISABLE,
 438         .tmio_caps      = MMC_CAP_SD_HIGHSPEED,
 439         .tmio_ocr_mask  = MMC_VDD_27_28 | MMC_VDD_28_29,
 440         .cd_gpio        = GPIO_PORT13,
 441 };
 442
 443 static struct resource sdhi2_resources[] = {
 444         [0] = {
 445                 .name   = "SDHI2",
 446                 .start  = 0xee140000,
 447                 .end    = 0xee1400ff,
 448                 .flags  = IORESOURCE_MEM,
 449         },
 450         [1] = {
 451                 .name   = SH_MOBILE_SDHI_IRQ_CARD_DETECT,
 452                 .start  = gic_spi(103),
 453                 .flags  = IORESOURCE_IRQ,
 454         },
 455         [2] = {
 456                 .name   = SH_MOBILE_SDHI_IRQ_SDCARD,
 457                 .start  = gic_spi(104),
 458                 .flags  = IORESOURCE_IRQ,
 459         },
 460         [3] = {
 461                 .name   = SH_MOBILE_SDHI_IRQ_SDIO,
 462                 .start  = gic_spi(105),
 463                 .flags  = IORESOURCE_IRQ,
 464         },
 465 };
 466
 467 static struct platform_device sdhi2_device = {
 468         .name           = "sh_mobile_sdhi",
 469         .id             = 2,
 470         .num_resources  = ARRAY_SIZE(sdhi2_resources),
 471         .resource       = sdhi2_resources,
 472         .dev    = {
 473                 .platform_data  = &sdhi2_info,
 474         },
 475 };
 476
 477 /* KEY */
 478 #define GPIO_KEY(c, g, d) { .code = c, .gpio = g, .desc = d, .active_low = 1 }
 479
 480 static struct gpio_keys_button gpio_buttons[] = {
 481         GPIO_KEY(KEY_BACK,      GPIO_PCF8575_PORT10,    "SW3"),
 482         GPIO_KEY(KEY_RIGHT,     GPIO_PCF8575_PORT11,    "SW2-R"),
 483         GPIO_KEY(KEY_LEFT,      GPIO_PCF8575_PORT12,    "SW2-L"),
 484         GPIO_KEY(KEY_ENTER,     GPIO_PCF8575_PORT13,    "SW2-P"),
 485         GPIO_KEY(KEY_UP,        GPIO_PCF8575_PORT14,    "SW2-U"),
 486         GPIO_KEY(KEY_DOWN,      GPIO_PCF8575_PORT15,    "SW2-D"),
 487         GPIO_KEY(KEY_HOME,      GPIO_PCF8575_PORT16,    "SW1"),
 488 };
 489
 490 static struct gpio_keys_platform_data gpio_key_info = {
 491         .buttons        = gpio_buttons,
 492         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 493 };
 494
 495 static struct platform_device gpio_keys_device = {
 496         .name   = "gpio-keys",
 497         .dev    = {
 498                 .platform_data  = &gpio_key_info,
 499         },
 500 };
 501
 502 /* FSI-AK4648 */
 503 static struct sh_fsi_platform_info fsi_info = {
 504         .port_a = {
 505                 .tx_id = SHDMA_SLAVE_FSI2A_TX,
 506         },
 507 };
 508
 509 static struct resource fsi_resources[] = {
 510         [0] = {
 511                 .name   = "FSI",
 512                 .start  = 0xEC230000,
 513                 .end    = 0xEC230400 - 1,
 514                 .flags  = IORESOURCE_MEM,
 515         },
 516         [1] = {
 517                 .start  = gic_spi(146),
 518                 .flags  = IORESOURCE_IRQ,
 519         },
 520 };
 521
 522 static struct platform_device fsi_device = {
 523         .name           = "sh_fsi2",
 524         .id             = -1,
 525         .num_resources  = ARRAY_SIZE(fsi_resources),
 526         .resource       = fsi_resources,
 527         .dev    = {
 528                 .platform_data  = &fsi_info,
 529         },
 530 };
 531
 532 static struct asoc_simple_card_info fsi2_ak4648_info = {
 533         .name           = "AK4648",
 534         .card           = "FSI2A-AK4648",
 535         .codec          = "ak4642-codec.0-0012",
 536         .platform       = "sh_fsi2",
 537         .daifmt         = SND_SOC_DAIFMT_LEFT_J,
 538         .cpu_dai = {
 539                 .name   = "fsia-dai",
 540                 .fmt    = SND_SOC_DAIFMT_CBS_CFS,
 541         },
 542         .codec_dai = {
 543                 .name   = "ak4642-hifi",
 544                 .fmt    = SND_SOC_DAIFMT_CBM_CFM,
 545                 .sysclk = 11289600,
 546         },
 547 };
 548
 549 static struct platform_device fsi_ak4648_device = {
 550         .name   = "asoc-simple-card",
 551         .dev    = {
 552                 .platform_data  = &fsi2_ak4648_info,
 553         },
 554 };
 555
 556 /* I2C */
 557 static struct pcf857x_platform_data pcf8575_pdata = {
 558         .gpio_base      = GPIO_PCF8575_BASE,
 559 };
 560
 561 static struct i2c_board_info i2c0_devices[] = {
 562         {
 563                 I2C_BOARD_INFO("ak4648", 0x12),
 564         },
 565         {
 566                 I2C_BOARD_INFO("r2025sd", 0x32),
 567         },
 568         {
 569                 I2C_BOARD_INFO("ak8975", 0x0c),
 570                 .irq = irq_pin(28), /* IRQ28 */
 571         },
 572         {
 573                 I2C_BOARD_INFO("adxl34x", 0x1d),
 574                 .irq = irq_pin(26), /* IRQ26 */
 575         },
 576 };
 577
 578 static struct i2c_board_info i2c1_devices[] = {
 579         {
 580                 I2C_BOARD_INFO("st1232-ts", 0x55),
 581                 .irq = irq_pin(8), /* IRQ8 */
 582         },
 583 };
 584
 585 static struct i2c_board_info i2c3_devices[] = {
 586         {
 587                 I2C_BOARD_INFO("pcf8575", 0x20),
 588                 .irq = irq_pin(19), /* IRQ19 */
 589                 .platform_data = &pcf8575_pdata,
 590         },
 591 };
 592
 593 static struct platform_device *kzm_devices[] __initdata = {
 594         &smsc_device,
 595         &usb_host_device,
 596         &usbhs_device,
 597         &lcdc_device,
 598         &mmc_device,
 599         &sdhi0_device,
 600         &sdhi2_device,
 601         &gpio_keys_device,
 602         &fsi_device,
 603         &fsi_ak4648_device,
 604 };
 605
 606 /*
 607  * FIXME
 608  *
 609  * This is quick hack for enabling LCDC backlight
 610  */
 611 static int __init as3711_enable_lcdc_backlight(void)
 612 {
 613         struct i2c_adapter *a = i2c_get_adapter(0);
 614         struct i2c_msg msg;
 615         int i, ret;
 616         __u8 magic[] = {
 617                 0x40, 0x2a,
 618                 0x43, 0x3c,
 619                 0x44, 0x3c,
 620                 0x45, 0x3c,
 621                 0x54, 0x03,
 622                 0x51, 0x00,
 623                 0x51, 0x01,
 624                 0xff, 0x00, /* wait */
 625                 0x43, 0xf0,
 626                 0x44, 0xf0,
 627                 0x45, 0xf0,
 628         };
 629
 630         if (!of_machine_is_compatible("renesas,kzm9g"))
 631                 return 0;
 632
 633         if (!a)
 634                 return 0;
 635
 636         msg.addr        = 0x40;
 637         msg.len         = 2;
 638         msg.flags       = 0;
 639
 640         for (i = 0; i < ARRAY_SIZE(magic); i += 2) {
 641                 msg.buf = magic + i;
 642
 643                 if (0xff == msg.buf[0]) {
 644                         udelay(500);
 645                         continue;
 646                 }
 647
 648                 ret = i2c_transfer(a, &msg, 1);
 649                 if (ret < 0) {
 650                         pr_err("i2c transfer fail\n");
 651                         break;
 652                 }
 653         }
 654
 655         return 0;
 656 }
 657 device_initcall(as3711_enable_lcdc_backlight);
 658
 659 static void __init kzm_init(void)
 660 {
 661         regulator_register_always_on(0, "fixed-1.8V", fixed1v8_power_consumers,
 662                                      ARRAY_SIZE(fixed1v8_power_consumers), 1800000);
 663         regulator_register_always_on(1, "fixed-2.8V", fixed2v8_power_consumers,
 664                                      ARRAY_SIZE(fixed2v8_power_consumers), 2800000);
 665         regulator_register_fixed(2, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 666
 667         sh73a0_pinmux_init();
 668
 669         /* enable SCIFA4 */
 670         gpio_request(GPIO_FN_SCIFA4_TXD, NULL);
 671         gpio_request(GPIO_FN_SCIFA4_RXD, NULL);
 672         gpio_request(GPIO_FN_SCIFA4_RTS_, NULL);
 673         gpio_request(GPIO_FN_SCIFA4_CTS_, NULL);
 674
 675         /* CS4 for SMSC/USB */
 676         gpio_request(GPIO_FN_CS4_, NULL); /* CS4 */
 677
 678         /* SMSC */
 679         gpio_request_one(GPIO_PORT224, GPIOF_IN, NULL); /* IRQ3 */
 680
 681         /* LCDC */
 682         gpio_request(GPIO_FN_LCDD23,    NULL);
 683         gpio_request(GPIO_FN_LCDD22,    NULL);
 684         gpio_request(GPIO_FN_LCDD21,    NULL);
 685         gpio_request(GPIO_FN_LCDD20,    NULL);
 686         gpio_request(GPIO_FN_LCDD19,    NULL);
 687         gpio_request(GPIO_FN_LCDD18,    NULL);
 688         gpio_request(GPIO_FN_LCDD17,    NULL);
 689         gpio_request(GPIO_FN_LCDD16,    NULL);
 690         gpio_request(GPIO_FN_LCDD15,    NULL);
 691         gpio_request(GPIO_FN_LCDD14,    NULL);
 692         gpio_request(GPIO_FN_LCDD13,    NULL);
 693         gpio_request(GPIO_FN_LCDD12,    NULL);
 694         gpio_request(GPIO_FN_LCDD11,    NULL);
 695         gpio_request(GPIO_FN_LCDD10,    NULL);
 696         gpio_request(GPIO_FN_LCDD9,     NULL);
 697         gpio_request(GPIO_FN_LCDD8,     NULL);
 698         gpio_request(GPIO_FN_LCDD7,     NULL);
 699         gpio_request(GPIO_FN_LCDD6,     NULL);
 700         gpio_request(GPIO_FN_LCDD5,     NULL);
 701         gpio_request(GPIO_FN_LCDD4,     NULL);
 702         gpio_request(GPIO_FN_LCDD3,     NULL);
 703         gpio_request(GPIO_FN_LCDD2,     NULL);
 704         gpio_request(GPIO_FN_LCDD1,     NULL);
 705         gpio_request(GPIO_FN_LCDD0,     NULL);
 706         gpio_request(GPIO_FN_LCDDISP,   NULL);
 707         gpio_request(GPIO_FN_LCDDCK,    NULL);
 708
 709         gpio_request_one(GPIO_PORT222, GPIOF_OUT_INIT_HIGH, NULL); /* LCDCDON */
 710         gpio_request_one(GPIO_PORT226, GPIOF_OUT_INIT_HIGH, NULL); /* SC */
 711
 712         /* Touchscreen */
 713         gpio_request_one(GPIO_PORT223, GPIOF_IN, NULL); /* IRQ8 */
 714
 715         /* enable MMCIF */
 716         gpio_request(GPIO_FN_MMCCLK0,           NULL);
 717         gpio_request(GPIO_FN_MMCCMD0_PU,        NULL);
 718         gpio_request(GPIO_FN_MMCD0_0_PU,        NULL);
 719         gpio_request(GPIO_FN_MMCD0_1_PU,        NULL);
 720         gpio_request(GPIO_FN_MMCD0_2_PU,        NULL);
 721         gpio_request(GPIO_FN_MMCD0_3_PU,        NULL);
 722         gpio_request(GPIO_FN_MMCD0_4_PU,        NULL);
 723         gpio_request(GPIO_FN_MMCD0_5_PU,        NULL);
 724         gpio_request(GPIO_FN_MMCD0_6_PU,        NULL);
 725         gpio_request(GPIO_FN_MMCD0_7_PU,        NULL);
 726
 727         /* enable SD */
 728         gpio_request(GPIO_FN_SDHIWP0,           NULL);
 729         gpio_request(GPIO_FN_SDHICD0,           NULL);
 730         gpio_request(GPIO_FN_SDHICMD0,          NULL);
 731         gpio_request(GPIO_FN_SDHICLK0,          NULL);
 732         gpio_request(GPIO_FN_SDHID0_3,          NULL);
 733         gpio_request(GPIO_FN_SDHID0_2,          NULL);
 734         gpio_request(GPIO_FN_SDHID0_1,          NULL);
 735         gpio_request(GPIO_FN_SDHID0_0,          NULL);
 736         gpio_request(GPIO_FN_SDHI0_VCCQ_MC0_ON, NULL);
 737         gpio_request_one(GPIO_PORT15, GPIOF_OUT_INIT_HIGH, NULL); /* power */
 738
 739         /* enable Micro SD */
 740         gpio_request(GPIO_FN_SDHID2_0,          NULL);
 741         gpio_request(GPIO_FN_SDHID2_1,          NULL);
 742         gpio_request(GPIO_FN_SDHID2_2,          NULL);
 743         gpio_request(GPIO_FN_SDHID2_3,          NULL);
 744         gpio_request(GPIO_FN_SDHICMD2,          NULL);
 745         gpio_request(GPIO_FN_SDHICLK2,          NULL);
 746         gpio_request_one(GPIO_PORT14, GPIOF_OUT_INIT_HIGH, NULL); /* power */
 747
 748         /* I2C 3 */
 749         gpio_request(GPIO_FN_PORT27_I2C_SCL3, NULL);
 750         gpio_request(GPIO_FN_PORT28_I2C_SDA3, NULL);
 751
 752         /* enable FSI2 port A (ak4648) */
 753         gpio_request(GPIO_FN_FSIACK,    NULL);
 754         gpio_request(GPIO_FN_FSIAILR,   NULL);
 755         gpio_request(GPIO_FN_FSIAIBT,   NULL);
 756         gpio_request(GPIO_FN_FSIAISLD,  NULL);
 757         gpio_request(GPIO_FN_FSIAOSLD,  NULL);
 758
 759         /* enable USB */
 760         gpio_request(GPIO_FN_VBUS_0,    NULL);
 761
 762 #ifdef CONFIG_CACHE_L2X0
 763         /* Early BRESP enable, Shared attribute override enable, 64K*8way */
 764         l2x0_init(IOMEM(0xf0100000), 0x40460000, 0x82000fff);
 765 #endif
 766
 767         i2c_register_board_info(0, i2c0_devices, ARRAY_SIZE(i2c0_devices));
 768         i2c_register_board_info(1, i2c1_devices, ARRAY_SIZE(i2c1_devices));
 769         i2c_register_board_info(3, i2c3_devices, ARRAY_SIZE(i2c3_devices));
 770
 771         sh73a0_add_standard_devices();
 772         platform_add_devices(kzm_devices, ARRAY_SIZE(kzm_devices));
 773
 774         sh73a0_pm_init();
 775 }
 776
 777 static void kzm9g_restart(char mode, const char *cmd)
 778 {
 779 #define RESCNT2 IOMEM(0xe6188020)
 780         /* Do soft power on reset */
 781         writel((1 << 31), RESCNT2);
 782 }
 783
 784 static const char *kzm9g_boards_compat_dt[] __initdata = {
 785         "renesas,kzm9g",
 786         NULL,
 787 };
 788
 789 DT_MACHINE_START(KZM9G_DT, "kzm9g")
 790         .smp            = smp_ops(sh73a0_smp_ops),
 791         .map_io         = sh73a0_map_io,
 792         .init_early     = sh73a0_add_early_devices,
 793         .nr_irqs        = NR_IRQS_LEGACY,
 794         .init_irq       = sh73a0_init_irq,
 795         .init_machine   = kzm_init,
 796         .init_late      = shmobile_init_late,
 797         .init_time      = sh73a0_earlytimer_init,
 798         .restart        = kzm9g_restart,
 799         .dt_compat      = kzm9g_boards_compat_dt,
 800 MACHINE_END