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 #include <mach/hardware.h>
  40 #include <mach/common.h>
  41 #include <mach/iomux-mx27.h>
  42 #include <mach/ulpi.h>
  43 #include <mach/3ds_debugboard.h>
  44
  45 #include "devices-imx27.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 };
 162
 163 static struct gpio mx27_3ds_camera_gpios[] = {
 164         { CSI_PWRDWN, GPIOF_OUT_INIT_HIGH, "camera-power" },
 165         { CSI_RESET, GPIOF_OUT_INIT_HIGH, "camera-reset" },
 166 };
 167
 168 static const struct imxuart_platform_data uart_pdata __initconst = {
 169         .flags = IMXUART_HAVE_RTSCTS,
 170 };
 171
 172 /*
 173  * Matrix keyboard
 174  */
 175
 176 static const uint32_t mx27_3ds_keymap[] = {
 177         KEY(0, 0, KEY_UP),
 178         KEY(0, 1, KEY_DOWN),
 179         KEY(1, 0, KEY_RIGHT),
 180         KEY(1, 1, KEY_LEFT),
 181         KEY(1, 2, KEY_ENTER),
 182         KEY(2, 0, KEY_F6),
 183         KEY(2, 1, KEY_F8),
 184         KEY(2, 2, KEY_F9),
 185         KEY(2, 3, KEY_F10),
 186 };
 187
 188 static const struct matrix_keymap_data mx27_3ds_keymap_data __initconst = {
 189         .keymap         = mx27_3ds_keymap,
 190         .keymap_size    = ARRAY_SIZE(mx27_3ds_keymap),
 191 };
 192
 193 static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
 194                                 void *data)
 195 {
 196         return request_irq(gpio_to_irq(SD1_CD), detect_irq,
 197         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, "sdhc1-card-detect", data);
 198 }
 199
 200 static void mx27_3ds_sdhc1_exit(struct device *dev, void *data)
 201 {
 202         free_irq(gpio_to_irq(SD1_CD), data);
 203 }
 204
 205 static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
 206         .init = mx27_3ds_sdhc1_init,
 207         .exit = mx27_3ds_sdhc1_exit,
 208 };
 209
 210 static void mx27_3ds_sdhc1_enable_level_translator(void)
 211 {
 212         /* Turn on TXB0108 OE pin */
 213         gpio_request(SD1_EN_GPIO, "sd1_enable");
 214         gpio_direction_output(SD1_EN_GPIO, 1);
 215 }
 216
 217
 218 static int otg_phy_init(void)
 219 {
 220         gpio_request(OTG_PHY_RESET_GPIO, "usb-otg-reset");
 221         gpio_direction_output(OTG_PHY_RESET_GPIO, 0);
 222         mdelay(1);
 223         gpio_set_value(OTG_PHY_RESET_GPIO, 1);
 224         return 0;
 225 }
 226
 227 static int mx27_3ds_otg_init(struct platform_device *pdev)
 228 {
 229         return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
 230 }
 231
 232 static struct mxc_usbh_platform_data otg_pdata __initdata = {
 233         .init   = mx27_3ds_otg_init,
 234         .portsc = MXC_EHCI_MODE_ULPI,
 235 };
 236
 237 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
 238         .operating_mode = FSL_USB2_DR_DEVICE,
 239         .phy_mode       = FSL_USB2_PHY_ULPI,
 240 };
 241
 242 static bool otg_mode_host __initdata;
 243
 244 static int __init mx27_3ds_otg_mode(char *options)
 245 {
 246         if (!strcmp(options, "host"))
 247                 otg_mode_host = true;
 248         else if (!strcmp(options, "device"))
 249                 otg_mode_host = false;
 250         else
 251                 pr_info("otg_mode neither \"host\" nor \"device\". "
 252                         "Defaulting to device\n");
 253         return 1;
 254 }
 255 __setup("otg_mode=", mx27_3ds_otg_mode);
 256
 257 /* Regulators */
 258 static struct regulator_init_data gpo_init = {
 259         .constraints = {
 260                 .boot_on = 1,
 261                 .always_on = 1,
 262         }
 263 };
 264
 265 static struct regulator_consumer_supply vmmc1_consumers[] = {
 266         REGULATOR_SUPPLY("vcore", "spi0.0"),
 267         REGULATOR_SUPPLY("cmos_2v8", "soc-camera-pdrv.0"),
 268 };
 269
 270 static struct regulator_init_data vmmc1_init = {
 271         .constraints = {
 272                 .min_uV = 2800000,
 273                 .max_uV = 2800000,
 274                 .apply_uV = 1,
 275                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 276                                   REGULATOR_CHANGE_STATUS,
 277         },
 278         .num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),
 279         .consumer_supplies = vmmc1_consumers,
 280 };
 281
 282 static struct regulator_consumer_supply vgen_consumers[] = {
 283         REGULATOR_SUPPLY("vdd", "spi0.0"),
 284 };
 285
 286 static struct regulator_init_data vgen_init = {
 287         .constraints = {
 288                 .min_uV = 1800000,
 289                 .max_uV = 1800000,
 290                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
 291         },
 292         .num_consumer_supplies = ARRAY_SIZE(vgen_consumers),
 293         .consumer_supplies = vgen_consumers,
 294 };
 295
 296 static struct regulator_consumer_supply vvib_consumers[] = {
 297         REGULATOR_SUPPLY("cmos_vcore", "soc-camera-pdrv.0"),
 298 };
 299
 300 static struct regulator_init_data vvib_init = {
 301         .constraints = {
 302                 .min_uV = 1300000,
 303                 .max_uV = 1300000,
 304                 .apply_uV = 1,
 305                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
 306                                   REGULATOR_CHANGE_STATUS,
 307         },
 308         .num_consumer_supplies = ARRAY_SIZE(vvib_consumers),
 309         .consumer_supplies = vvib_consumers,
 310 };
 311
 312 static struct mc13xxx_regulator_init_data mx27_3ds_regulators[] = {
 313         {
 314                 .id = MC13783_REG_VMMC1,
 315                 .init_data = &vmmc1_init,
 316         }, {
 317                 .id = MC13783_REG_VGEN,
 318                 .init_data = &vgen_init,
 319         }, {
 320                 .id = MC13783_REG_GPO1, /* Turn on 1.8V */
 321                 .init_data = &gpo_init,
 322         }, {
 323                 .id = MC13783_REG_GPO3, /* Turn on 3.3V */
 324                 .init_data = &gpo_init,
 325         }, {
 326                 .id = MC13783_REG_VVIB,  /* Power OV2640 */
 327                 .init_data = &vvib_init,
 328         },
 329 };
 330
 331 /* MC13783 */
 332 static struct mc13xxx_platform_data mc13783_pdata = {
 333         .regulators = {
 334                 .regulators = mx27_3ds_regulators,
 335                 .num_regulators = ARRAY_SIZE(mx27_3ds_regulators),
 336
 337         },
 338         .flags  = MC13XXX_USE_TOUCHSCREEN | MC13XXX_USE_RTC,
 339 };
 340
 341 /* SPI */
 342 static int spi1_chipselect[] = {SPI1_SS0};
 343
 344 static const struct spi_imx_master spi1_pdata __initconst = {
 345         .chipselect     = spi1_chipselect,
 346         .num_chipselect = ARRAY_SIZE(spi1_chipselect),
 347 };
 348
 349 static int spi2_chipselect[] = {SPI2_SS0};
 350
 351 static const struct spi_imx_master spi2_pdata __initconst = {
 352         .chipselect     = spi2_chipselect,
 353         .num_chipselect = ARRAY_SIZE(spi2_chipselect),
 354 };
 355
 356 static int mx27_3ds_camera_power(struct device *dev, int on)
 357 {
 358         /* enable or disable the camera */
 359         pr_debug("%s: %s the camera\n", __func__, on ? "ENABLE" : "DISABLE");
 360         gpio_set_value(CSI_PWRDWN, on ? 0 : 1);
 361
 362         if (!on)
 363                 goto out;
 364
 365         /* If enabled, give a reset impulse */
 366         gpio_set_value(CSI_RESET, 0);
 367         msleep(20);
 368         gpio_set_value(CSI_RESET, 1);
 369         msleep(100);
 370
 371 out:
 372         return 0;
 373 }
 374
 375 static struct i2c_board_info mx27_3ds_i2c_camera = {
 376         I2C_BOARD_INFO("ov2640", 0x30),
 377 };
 378
 379 static struct regulator_bulk_data mx27_3ds_camera_regs[] = {
 380         { .supply = "cmos_vcore" },
 381         { .supply = "cmos_2v8" },
 382 };
 383
 384 static struct soc_camera_link iclink_ov2640 = {
 385         .bus_id         = 0,
 386         .board_info     = &mx27_3ds_i2c_camera,
 387         .i2c_adapter_id = 0,
 388         .power          = mx27_3ds_camera_power,
 389         .regulators     = mx27_3ds_camera_regs,
 390         .num_regulators = ARRAY_SIZE(mx27_3ds_camera_regs),
 391 };
 392
 393 static struct platform_device mx27_3ds_ov2640 = {
 394         .name   = "soc-camera-pdrv",
 395         .id     = 0,
 396         .dev    = {
 397                 .platform_data = &iclink_ov2640,
 398         },
 399 };
 400
 401 static struct imx_fb_videomode mx27_3ds_modes[] = {
 402         {       /* 480x640 @ 60 Hz */
 403                 .mode = {
 404                         .name           = "Epson-VGA",
 405                         .refresh        = 60,
 406                         .xres           = 480,
 407                         .yres           = 640,
 408                         .pixclock       = 41701,
 409                         .left_margin    = 20,
 410                         .right_margin   = 41,
 411                         .upper_margin   = 10,
 412                         .lower_margin   = 5,
 413                         .hsync_len      = 20,
 414                         .vsync_len      = 10,
 415                         .sync           = FB_SYNC_OE_ACT_HIGH |
 416                                                 FB_SYNC_CLK_INVERT,
 417                         .vmode          = FB_VMODE_NONINTERLACED,
 418                         .flag           = 0,
 419                 },
 420                 .bpp            = 16,
 421                 .pcr            = 0xFAC08B82,
 422         },
 423 };
 424
 425 static const struct imx_fb_platform_data mx27_3ds_fb_data __initconst = {
 426         .mode = mx27_3ds_modes,
 427         .num_modes = ARRAY_SIZE(mx27_3ds_modes),
 428         .pwmr           = 0x00A903FF,
 429         .lscr1          = 0x00120300,
 430         .dmacr          = 0x00020010,
 431 };
 432
 433 /* LCD */
 434 static struct l4f00242t03_pdata mx27_3ds_lcd_pdata = {
 435         .reset_gpio             = LCD_RESET,
 436         .data_enable_gpio       = LCD_ENABLE,
 437 };
 438
 439 static struct spi_board_info mx27_3ds_spi_devs[] __initdata = {
 440         {
 441                 .modalias       = "mc13783",
 442                 .max_speed_hz   = 1000000,
 443                 .bus_num        = 1,
 444                 .chip_select    = 0, /* SS0 */
 445                 .platform_data  = &mc13783_pdata,
 446                 /* irq number is run-time assigned */
 447                 .mode = SPI_CS_HIGH,
 448         }, {
 449                 .modalias       = "l4f00242t03",
 450                 .max_speed_hz   = 5000000,
 451                 .bus_num        = 0,
 452                 .chip_select    = 0, /* SS0 */
 453                 .platform_data  = &mx27_3ds_lcd_pdata,
 454         },
 455 };
 456
 457 static struct platform_device *devices[] __initdata = {
 458         &mx27_3ds_ov2640,
 459 };
 460
 461 static const struct mx2_camera_platform_data mx27_3ds_cam_pdata __initconst = {
 462         .clk = 26000000,
 463 };
 464
 465 static const struct imxi2c_platform_data mx27_3ds_i2c0_data __initconst = {
 466         .bitrate = 100000,
 467 };
 468
 469 static void __init mx27pdk_init(void)
 470 {
 471         int ret;
 472         imx27_soc_init();
 473
 474         mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
 475                 "mx27pdk");
 476         mx27_3ds_sdhc1_enable_level_translator();
 477         imx27_add_imx_uart0(&uart_pdata);
 478         imx27_add_fec(NULL);
 479         imx27_add_imx_keypad(&mx27_3ds_keymap_data);
 480         imx27_add_mxc_mmc(0, &sdhc1_pdata);
 481         imx27_add_imx2_wdt();
 482         otg_phy_init();
 483
 484         if (otg_mode_host) {
 485                 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
 486                                 ULPI_OTG_DRVVBUS_EXT);
 487
 488                 if (otg_pdata.otg)
 489                         imx27_add_mxc_ehci_otg(&otg_pdata);
 490         }
 491
 492         if (!otg_mode_host)
 493                 imx27_add_fsl_usb2_udc(&otg_device_pdata);
 494
 495         imx27_add_spi_imx1(&spi2_pdata);
 496         imx27_add_spi_imx0(&spi1_pdata);
 497         mx27_3ds_spi_devs[0].irq = gpio_to_irq(PMIC_INT);
 498         spi_register_board_info(mx27_3ds_spi_devs,
 499                                                 ARRAY_SIZE(mx27_3ds_spi_devs));
 500
 501         if (mxc_expio_init(MX27_CS5_BASE_ADDR, IMX_GPIO_NR(3, 28)))
 502                 pr_warn("Init of the debugboard failed, all devices on the debugboard are unusable.\n");
 503         imx27_add_imx_i2c(0, &mx27_3ds_i2c0_data);
 504         platform_add_devices(devices, ARRAY_SIZE(devices));
 505         imx27_add_imx_fb(&mx27_3ds_fb_data);
 506
 507         ret = gpio_request_array(mx27_3ds_camera_gpios,
 508                                  ARRAY_SIZE(mx27_3ds_camera_gpios));
 509         if (ret) {
 510                 pr_err("Failed to request camera gpios");
 511                 iclink_ov2640.power = NULL;
 512         }
 513
 514         imx27_add_mx2_camera(&mx27_3ds_cam_pdata);
 515 }
 516
 517 static void __init mx27pdk_timer_init(void)
 518 {
 519         mx27_clocks_init(26000000);
 520 }
 521
 522 static struct sys_timer mx27pdk_timer = {
 523         .init   = mx27pdk_timer_init,
 524 };
 525
 526 MACHINE_START(MX27_3DS, "Freescale MX27PDK")
 527         /* maintainer: Freescale Semiconductor, Inc. */
 528         .atag_offset = 0x100,
 529         .map_io = mx27_map_io,
 530         .init_early = imx27_init_early,
 531         .init_irq = mx27_init_irq,
 532         .handle_irq = imx27_handle_irq,
 533         .timer = &mx27pdk_timer,
 534         .init_machine = mx27pdk_init,
 535         .restart        = mxc_restart,
 536 MACHINE_END