arch/arm/mach-imx/mach-mx27_3ds.c

   1 /*
   2  * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
   3  *
   4  * Author: Fabio Estevam <fabio.estevam@freescale.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; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  */
  16
  17 /*
  18  * This machine is known as:
  19  *  - i.MX27 3-Stack Development System
  20  *  - i.MX27 Platform Development Kit (i.MX27 PDK)
  21  */
  22
  23 #include <linux/platform_device.h>
  24 #include <linux/gpio.h>
  25 #include <linux/irq.h>
  26 #include <linux/usb/otg.h>
  27 #include <linux/usb/ulpi.h>
  28 #include <linux/delay.h>
  29 #include <linux/mfd/mc13783.h>
  30 #include <linux/spi/spi.h>
  31 #include <linux/regulator/machine.h>
  32 #include <linux/spi/l4f00242t03.h>
  33
  34 #include <media/soc_camera.h>
  35
  36 #include <asm/mach-types.h>
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/time.h>
  39
  40 #include "3ds_debugboard.h"
  41 #include "common.h"
  42 #include "devices-imx27.h"
  43 #include "hardware.h"
  44 #include "iomux-mx27.h"
  45 #include "ulpi.h"
  46
  47 #define SD1_EN_GPIO             IMX_GPIO_NR(2, 25)
  48 #define OTG_PHY_RESET_GPIO      IMX_GPIO_NR(2, 23)
  49 #define SPI2_SS0                IMX_GPIO_NR(4, 21)
  50 #define PMIC_INT                IMX_GPIO_NR(3, 14)
  51 #define SPI1_SS0                IMX_GPIO_NR(4, 28)
  52 #define SD1_CD                  IMX_GPIO_NR(2, 26)
  53 #define LCD_RESET               IMX_GPIO_NR(1, 3)
  54 #define LCD_ENABLE              IMX_GPIO_NR(1, 31)
  55 #define CSI_PWRDWN              IMX_GPIO_NR(4, 19)
  56 #define CSI_RESET               IMX_GPIO_NR(3, 6)
  57
  58 static const int mx27pdk_pins[] __initconst = {
  59         /* UART1 */
  60         PE12_PF_UART1_TXD,
  61         PE13_PF_UART1_RXD,
  62         PE14_PF_UART1_CTS,
  63         PE15_PF_UART1_RTS,
  64         /* FEC */
  65         PD0_AIN_FEC_TXD0,
  66         PD1_AIN_FEC_TXD1,
  67         PD2_AIN_FEC_TXD2,
  68         PD3_AIN_FEC_TXD3,
  69         PD4_AOUT_FEC_RX_ER,
  70         PD5_AOUT_FEC_RXD1,
  71         PD6_AOUT_FEC_RXD2,
  72         PD7_AOUT_FEC_RXD3,
  73         PD8_AF_FEC_MDIO,
  74         PD9_AIN_FEC_MDC,
  75         PD10_AOUT_FEC_CRS,
  76         PD11_AOUT_FEC_TX_CLK,
  77         PD12_AOUT_FEC_RXD0,
  78         PD13_AOUT_FEC_RX_DV,
  79         PD14_AOUT_FEC_RX_CLK,
  80         PD15_AOUT_FEC_COL,
  81         PD16_AIN_FEC_TX_ER,
  82         PF23_AIN_FEC_TX_EN,
  83         /* SDHC1 */
  84         PE18_PF_SD1_D0,
  85         PE19_PF_SD1_D1,
  86         PE20_PF_SD1_D2,
  87         PE21_PF_SD1_D3,
  88         PE22_PF_SD1_CMD,
  89         PE23_PF_SD1_CLK,
  90         SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT,
  91         /* OTG */
  92         OTG_PHY_RESET_GPIO | GPIO_GPIO | GPIO_OUT,
  93         PC7_PF_USBOTG_DATA5,
  94         PC8_PF_USBOTG_DATA6,
  95         PC9_PF_USBOTG_DATA0,
  96         PC10_PF_USBOTG_DATA2,
  97         PC11_PF_USBOTG_DATA1,
  98         PC12_PF_USBOTG_DATA4,
  99         PC13_PF_USBOTG_DATA3,
 100         PE0_PF_USBOTG_NXT,
 101         PE1_PF_USBOTG_STP,
 102         PE2_PF_USBOTG_DIR,
 103         PE24_PF_USBOTG_CLK,
 104         PE25_PF_USBOTG_DATA7,
 105         /* CSPI1 */
 106         PD31_PF_CSPI1_MOSI,
 107         PD30_PF_CSPI1_MISO,
 108         PD29_PF_CSPI1_SCLK,
 109         PD25_PF_CSPI1_RDY,
 110         SPI1_SS0 | GPIO_GPIO | GPIO_OUT,
 111         /* CSPI2 */
 112         PD22_PF_CSPI2_SCLK,
 113         PD23_PF_CSPI2_MISO,
 114         PD24_PF_CSPI2_MOSI,
 115         SPI2_SS0 | GPIO_GPIO | GPIO_OUT,
 116         /* I2C1 */
 117         PD17_PF_I2C_DATA,
 118         PD18_PF_I2C_CLK,
 119         /* PMIC INT */
 120         PMIC_INT | GPIO_GPIO | GPIO_IN,
 121         /* LCD */
 122         PA5_PF_LSCLK,
 123         PA6_PF_LD0,
 124         PA7_PF_LD1,
 125         PA8_PF_LD2,
 126         PA9_PF_LD3,
 127         PA10_PF_LD4,
 128         PA11_PF_LD5,
 129         PA12_PF_LD6,
 130         PA13_PF_LD7,
 131         PA14_PF_LD8,
 132         PA15_PF_LD9,
 133         PA16_PF_LD10,
 134         PA17_PF_LD11,
 135         PA18_PF_LD12,
 136         PA19_PF_LD13,
 137         PA20_PF_LD14,
 138         PA21_PF_LD15,
 139         PA22_PF_LD16,
 140         PA23_PF_LD17,
 141         PA28_PF_HSYNC,
 142         PA29_PF_VSYNC,
 143         PA30_PF_CONTRAST,
 144         LCD_ENABLE | GPIO_GPIO | GPIO_OUT,
 145         LCD_RESET | GPIO_GPIO | GPIO_OUT,
 146         /* CSI */
 147         PB10_PF_CSI_D0,
 148         PB11_PF_CSI_D1,
 149         PB12_PF_CSI_D2,
 150         PB13_PF_CSI_D3,
 151         PB14_PF_CSI_D4,
 152         PB15_PF_CSI_MCLK,
 153         PB16_PF_CSI_PIXCLK,
 154         PB17_PF_CSI_D5,
 155         PB18_PF_CSI_D6,
 156         PB19_PF_CSI_D7,
 157         PB20_PF_CSI_VSYNC,
 158         PB21_PF_CSI_HSYNC,
 159         CSI_PWRDWN | GPIO_GPIO | GPIO_OUT,
 160         CSI_RESET | GPIO_GPIO | GPIO_OUT,
 161         /* SSI4 */
 162         PC16_PF_SSI4_FS,
 163         PC17_PF_SSI4_RXD,
 164         PC18_PF_SSI4_TXD,
 165         PC19_PF_SSI4_CLK,
 166 };
 167
 168 static struct gpio mx27_3ds_camera_gpios[] = {
 169         { CSI_PWRDWN, GPIOF_OUT_INIT_HIGH, "camera-power" },
 170         { CSI_RESET, GPIOF_OUT_INIT_HIGH, "camera-reset" },
 171 };
 172
 173 static const struct imxuart_platform_data uart_pdata __initconst = {
 174         .flags = IMXUART_HAVE_RTSCTS,
 175 };
 176
 177 /*
 178  * Matrix keyboard
 179  */
 180
 181 static const uint32_t mx27_3ds_keymap[] = {
 182         KEY(0, 0, KEY_UP),
 183         KEY(0, 1, KEY_DOWN),
 184         KEY(1, 0, KEY_RIGHT),
 185         KEY(1, 1, KEY_LEFT),
 186         KEY(1, 2, KEY_ENTER),
 187         KEY(2, 0, KEY_F6),
 188         KEY(2, 1, KEY_F8),
 189         KEY(2, 2, KEY_F9),
 190         KEY(2, 3, KEY_F10),
 191 };
 192
 193 static const struct matrix_keymap_data mx27_3ds_keymap_data __initconst = {
 194         .keymap         = mx27_3ds_keymap,
 195         .keymap_size    = ARRAY_SIZE(mx27_3ds_keymap),
 196 };
 197
 198 static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
 199                                 void *data)
 200 {
 201         return request_irq(gpio_to_irq(SD1_CD), detect_irq,
 202         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, "sdhc1-card-detect", data);
 203 }
 204
 205 static void mx27_3ds_sdhc1_exit(struct device *dev, void *data)
 206 {
 207         free_irq(gpio_to_irq(SD1_CD), data);
 208 }
 209
 210 static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
 211         .init = mx27_3ds_sdhc1_init,
 212         .exit = mx27_3ds_sdhc1_exit,
 213 };
 214
 215 static void mx27_3ds_sdhc1_enable_level_translator(void)
 216 {
 217         /* Turn on TXB0108 OE pin */
 218         gpio_request(SD1_EN_GPIO, "sd1_enable");
 219         gpio_direction_output(SD1_EN_GPIO, 1);
 220 }
 221
 222
 223 static int otg_phy_init(void)
 224 {
 225         gpio_request(OTG_PHY_RESET_GPIO, "usb-otg-reset");
 226         gpio_direction_output(OTG_PHY_RESET_GPIO, 0);
 227         mdelay(1);
 228         gpio_set_value(OTG_PHY_RESET_GPIO, 1);
 229         return 0;
 230 }
 231
 232 static int mx27_3ds_otg_init(struct platform_device *pdev)
 233 {
 234         return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
 235 }
 236
 237 static struct mxc_usbh_platform_data otg_pdata __initdata = {
 238         .init   = mx27_3ds_otg_init,
 239         .portsc = MXC_EHCI_MODE_ULPI,
 240 };
 241
 242 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
 243         .operating_mode = FSL_USB2_DR_DEVICE,
 244         .phy_mode       = FSL_USB2_PHY_ULPI,
 245 };
 246
 247 static bool otg_mode_host __initdata;
 248
 249 static int __init mx27_3ds_otg_mode(char *options)
 250 {
 251         if (!strcmp(options, "host"))
 252                 otg_mode_host = true;
 253         else if (!strcmp(options, "device"))
 254                 otg_mode_host = false;
 255         else
 256                 pr_info("otg_mode neither \"host\" nor \"device\". "
 257                         "Defaulting to device\n");
 258         return 1;
 259 }
 260 __setup("otg_mode=", mx27_3ds_otg_mode);
 261
 262 /* Regulators */
 263 static struct regulator_init_data gpo_init = {
 264         .constraints = {
 265                 .boot_on = 1,
 266                 .always_on = 1,
 267         }
 268 };
 269
 270 static struct regulator_consumer_supply vmmc1_consumers[] = {
 271         REGULATOR_SUPPLY("vcore", "spi0.0"),
 272         REGULATOR_SUPPLY("cmos_2v8", "soc-camera-pdrv.0"),
 273 };
 274
 275 static struct regulator_init_data vmmc1_init = {
 276         .constraints = {
 277                 .min_uV = 2800000,
 278                 .max_uV = 2800000,
 279                 .apply_uV = 1,
 280                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 281                                   REGULATOR_CHANGE_STATUS,
 282         },
 283         .num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),
 284         .consumer_supplies = vmmc1_consumers,
 285 };
 286
 287 static struct regulator_consumer_supply vgen_consumers[] = {
 288         REGULATOR_SUPPLY("vdd", "spi0.0"),
 289 };
 290
 291 static struct regulator_init_data vgen_init = {
 292         .constraints = {
 293                 .min_uV = 1800000,
 294                 .max_uV = 1800000,
 295                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
 296         },
 297         .num_consumer_supplies = ARRAY_SIZE(vgen_consumers),
 298         .consumer_supplies = vgen_consumers,
 299 };
 300
 301 static struct regulator_consumer_supply vvib_consumers[] = {
 302         REGULATOR_SUPPLY("cmos_vcore", "soc-camera-pdrv.0"),
 303 };
 304
 305 static struct regulator_init_data vvib_init = {
 306         .constraints = {
 307                 .min_uV = 1300000,
 308                 .max_uV = 1300000,
 309                 .apply_uV = 1,
 310                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 311                                   REGULATOR_CHANGE_STATUS,
 312         },
 313         .num_consumer_supplies = ARRAY_SIZE(vvib_consumers),
 314         .consumer_supplies = vvib_consumers,
 315 };
 316
 317 static struct mc13xxx_regulator_init_data mx27_3ds_regulators[] = {
 318         {
 319                 .id = MC13783_REG_VMMC1,
 320                 .init_data = &vmmc1_init,
 321         }, {
 322                 .id = MC13783_REG_VGEN,
 323                 .init_data = &vgen_init,
 324         }, {
 325                 .id = MC13783_REG_GPO1, /* Turn on 1.8V */
 326                 .init_data = &gpo_init,
 327         }, {
 328                 .id = MC13783_REG_GPO3, /* Turn on 3.3V */
 329                 .init_data = &gpo_init,
 330         }, {
 331                 .id = MC13783_REG_VVIB,  /* Power OV2640 */
 332                 .init_data = &vvib_init,
 333         },
 334 };
 335
 336 /* MC13783 */
 337 static struct mc13xxx_codec_platform_data mx27_3ds_codec = {
 338         .dac_ssi_port = MC13783_SSI1_PORT,
 339         .adc_ssi_port = MC13783_SSI1_PORT,
 340 };
 341
 342 static struct mc13xxx_platform_data mc13783_pdata = {
 343         .regulators = {
 344                 .regulators = mx27_3ds_regulators,
 345                 .num_regulators = ARRAY_SIZE(mx27_3ds_regulators),
 346
 347         },
 348         .flags  = MC13XXX_USE_TOUCHSCREEN | MC13XXX_USE_RTC |
 349                                                 MC13XXX_USE_CODEC,
 350         .codec = &mx27_3ds_codec,
 351 };
 352
 353 static struct imx_ssi_platform_data mx27_3ds_ssi_pdata = {
 354         .flags = IMX_SSI_DMA | IMX_SSI_NET,
 355 };
 356
 357 /* SPI */
 358 static int spi1_chipselect[] = {SPI1_SS0};
 359
 360 static const struct spi_imx_master spi1_pdata __initconst = {
 361         .chipselect     = spi1_chipselect,
 362         .num_chipselect = ARRAY_SIZE(spi1_chipselect),
 363 };
 364
 365 static int spi2_chipselect[] = {SPI2_SS0};
 366
 367 static const struct spi_imx_master spi2_pdata __initconst = {
 368         .chipselect     = spi2_chipselect,
 369         .num_chipselect = ARRAY_SIZE(spi2_chipselect),
 370 };
 371
 372 static int mx27_3ds_camera_power(struct device *dev, int on)
 373 {
 374         /* enable or disable the camera */
 375         pr_debug("%s: %s the camera\n", __func__, on ? "ENABLE" : "DISABLE");
 376         gpio_set_value(CSI_PWRDWN, on ? 0 : 1);
 377
 378         if (!on)
 379                 goto out;
 380
 381         /* If enabled, give a reset impulse */
 382         gpio_set_value(CSI_RESET, 0);
 383         msleep(20);
 384         gpio_set_value(CSI_RESET, 1);
 385         msleep(100);
 386
 387 out:
 388         return 0;
 389 }
 390
 391 static struct i2c_board_info mx27_3ds_i2c_camera = {
 392         I2C_BOARD_INFO("ov2640", 0x30),
 393 };
 394
 395 static struct regulator_bulk_data mx27_3ds_camera_regs[] = {
 396         { .supply = "cmos_vcore" },
 397         { .supply = "cmos_2v8" },
 398 };
 399
 400 static struct soc_camera_link iclink_ov2640 = {
 401         .bus_id         = 0,
 402         .board_info     = &mx27_3ds_i2c_camera,
 403         .i2c_adapter_id = 0,
 404         .power          = mx27_3ds_camera_power,
 405         .regulators     = mx27_3ds_camera_regs,
 406         .num_regulators = ARRAY_SIZE(mx27_3ds_camera_regs),
 407 };
 408
 409 static struct platform_device mx27_3ds_ov2640 = {
 410         .name   = "soc-camera-pdrv",
 411         .id     = 0,
 412         .dev    = {
 413                 .platform_data = &iclink_ov2640,
 414         },
 415 };
 416
 417 static struct imx_fb_videomode mx27_3ds_modes[] = {
 418         {       /* 480x640 @ 60 Hz */
 419                 .mode = {
 420                         .name           = "Epson-VGA",
 421                         .refresh        = 60,
 422                         .xres           = 480,
 423                         .yres           = 640,
 424                         .pixclock       = 41701,
 425                         .left_margin    = 20,
 426                         .right_margin   = 41,
 427                         .upper_margin   = 10,
 428                         .lower_margin   = 5,
 429                         .hsync_len      = 20,
 430                         .vsync_len      = 10,
 431                         .sync           = FB_SYNC_OE_ACT_HIGH |
 432                                                 FB_SYNC_CLK_INVERT,
 433                         .vmode          = FB_VMODE_NONINTERLACED,
 434                         .flag           = 0,
 435                 },
 436                 .bpp            = 16,
 437                 .pcr            = 0xFAC08B82,
 438         },
 439 };
 440
 441 static const struct imx_fb_platform_data mx27_3ds_fb_data __initconst = {
 442         .mode = mx27_3ds_modes,
 443         .num_modes = ARRAY_SIZE(mx27_3ds_modes),
 444         .pwmr           = 0x00A903FF,
 445         .lscr1          = 0x00120300,
 446         .dmacr          = 0x00020010,
 447 };
 448
 449 /* LCD */
 450 static struct l4f00242t03_pdata mx27_3ds_lcd_pdata = {
 451         .reset_gpio             = LCD_RESET,
 452         .data_enable_gpio       = LCD_ENABLE,
 453 };
 454
 455 static struct spi_board_info mx27_3ds_spi_devs[] __initdata = {
 456         {
 457                 .modalias       = "mc13783",
 458                 .max_speed_hz   = 1000000,
 459                 .bus_num        = 1,
 460                 .chip_select    = 0, /* SS0 */
 461                 .platform_data  = &mc13783_pdata,
 462                 /* irq number is run-time assigned */
 463                 .mode = SPI_CS_HIGH,
 464         }, {
 465                 .modalias       = "l4f00242t03",
 466                 .max_speed_hz   = 5000000,
 467                 .bus_num        = 0,
 468                 .chip_select    = 0, /* SS0 */
 469                 .platform_data  = &mx27_3ds_lcd_pdata,
 470         },
 471 };
 472
 473 static struct platform_device *devices[] __initdata = {
 474         &mx27_3ds_ov2640,
 475 };
 476
 477 static const struct mx2_camera_platform_data mx27_3ds_cam_pdata __initconst = {
 478         .clk = 26000000,
 479 };
 480
 481 static const struct imxi2c_platform_data mx27_3ds_i2c0_data __initconst = {
 482         .bitrate = 100000,
 483 };
 484
 485 static void __init mx27pdk_init(void)
 486 {
 487         int ret;
 488         imx27_soc_init();
 489
 490         mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
 491                 "mx27pdk");
 492         mx27_3ds_sdhc1_enable_level_translator();
 493         imx27_add_imx_uart0(&uart_pdata);
 494         imx27_add_fec(NULL);
 495         imx27_add_imx_keypad(&mx27_3ds_keymap_data);
 496         imx27_add_mxc_mmc(0, &sdhc1_pdata);
 497         imx27_add_imx2_wdt();
 498         otg_phy_init();
 499
 500         if (otg_mode_host) {
 501                 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 502                                 ULPI_OTG_DRVVBUS_EXT);
 503
 504                 if (otg_pdata.otg)
 505                         imx27_add_mxc_ehci_otg(&otg_pdata);
 506         }
 507
 508         if (!otg_mode_host)
 509                 imx27_add_fsl_usb2_udc(&otg_device_pdata);
 510
 511         imx27_add_spi_imx1(&spi2_pdata);
 512         imx27_add_spi_imx0(&spi1_pdata);
 513         mx27_3ds_spi_devs[0].irq = gpio_to_irq(PMIC_INT);
 514         spi_register_board_info(mx27_3ds_spi_devs,
 515                                                 ARRAY_SIZE(mx27_3ds_spi_devs));
 516
 517         if (mxc_expio_init(MX27_CS5_BASE_ADDR, IMX_GPIO_NR(3, 28)))
 518                 pr_warn("Init of the debugboard failed, all devices on the debugboard are unusable.\n");
 519         imx27_add_imx_i2c(0, &mx27_3ds_i2c0_data);
 520         platform_add_devices(devices, ARRAY_SIZE(devices));
 521         imx27_add_imx_fb(&mx27_3ds_fb_data);
 522
 523         ret = gpio_request_array(mx27_3ds_camera_gpios,
 524                                  ARRAY_SIZE(mx27_3ds_camera_gpios));
 525         if (ret) {
 526                 pr_err("Failed to request camera gpios");
 527                 iclink_ov2640.power = NULL;
 528         }
 529
 530         imx27_add_mx2_camera(&mx27_3ds_cam_pdata);
 531         imx27_add_imx_ssi(0, &mx27_3ds_ssi_pdata);
 532
 533         imx_add_platform_device("imx_mc13783", 0, NULL, 0, NULL, 0);
 534 }
 535
 536 static void __init mx27pdk_timer_init(void)
 537 {
 538         mx27_clocks_init(26000000);
 539 }
 540
 541 MACHINE_START(MX27_3DS, "Freescale MX27PDK")
 542         /* maintainer: Freescale Semiconductor, Inc. */
 543         .atag_offset = 0x100,
 544         .map_io = mx27_map_io,
 545         .init_early = imx27_init_early,
 546         .init_irq = mx27_init_irq,
 547         .handle_irq = imx27_handle_irq,
 548         .init_time      = mx27pdk_timer_init,
 549         .init_machine = mx27pdk_init,
 550         .restart        = mxc_restart,
 551 MACHINE_END