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