mach-mx35_3ds.c

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/*
 * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
 * Copyright (C) 2009 Marc Kleine-Budde, Pengutronix
 *
 * Author: Fabio Estevam <[email protected]>
 *
 * Copyright (C) 2011 Meprolight, Ltd.
 * Alex Gershgorin <[email protected]>
 *
 * Modified from i.MX31 3-Stack Development System
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

/*
 * This machine is known as:
 *  - i.MX35 3-Stack Development System
 *  - i.MX35 Platform Development Kit (i.MX35 PDK)
 */

#include <linux/types.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/memory.h>
#include <linux/gpio.h>
#include <linux/usb/otg.h>

#include <linux/mtd/physmap.h>
#include <linux/mfd/mc13892.h>
#include <linux/regulator/machine.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
#include <asm/memblock.h>

#include <mach/hardware.h>
#include <mach/common.h>
#include <mach/iomux-mx35.h>
#include <mach/3ds_debugboard.h>
#include <video/platform_lcd.h>

#include <media/soc_camera.h>

#include "devices-imx35.h"

#define GPIO_MC9S08DZ60_GPS_ENABLE 0
#define GPIO_MC9S08DZ60_HDD_ENABLE 4
#define GPIO_MC9S08DZ60_WIFI_ENABLE 5
#define GPIO_MC9S08DZ60_LCD_ENABLE 6
#define GPIO_MC9S08DZ60_SPEAKER_ENABLE 8

static const struct fb_videomode fb_modedb[] = {
    {
         /* 800x480 @ 55 Hz */
        .name = "Ceramate-CLAA070VC01",
        .refresh = 55,
        .xres = 800,
        .yres = 480,
        .pixclock = 40000,
        .left_margin = 40,
        .right_margin = 40,
        .upper_margin = 5,
        .lower_margin = 5,
        .hsync_len = 20,
        .vsync_len = 10,
        .sync = FB_SYNC_OE_ACT_HIGH,
        .vmode = FB_VMODE_NONINTERLACED,
        .flag = 0,
     },
};

static struct mx3fb_platform_data mx3fb_pdata __initdata = {
    .name = "Ceramate-CLAA070VC01",
    .mode = fb_modedb,
    .num_modes = ARRAY_SIZE(fb_modedb),
};

static struct i2c_board_info __initdata i2c_devices_3ds[] = {
    {
        I2C_BOARD_INFO("mc9s08dz60", 0x69),
    },
};

static int lcd_power_gpio = -ENXIO;

static int mc9s08dz60_gpiochip_match(struct gpio_chip *chip, void *data)
{
    return !strcmp(chip->label, data);
}

static void mx35_3ds_lcd_set_power(
                struct plat_lcd_data *pd, unsigned int power)
{
    struct gpio_chip *chip;

    if (!gpio_is_valid(lcd_power_gpio)) {
        chip = gpiochip_find(
                "mc9s08dz60", mc9s08dz60_gpiochip_match);
        if (chip) {
            lcd_power_gpio =
                chip->base + GPIO_MC9S08DZ60_LCD_ENABLE;
            if (gpio_request(lcd_power_gpio, "lcd_power") < 0) {
                pr_err("error: gpio already requested!\n");
                lcd_power_gpio = -ENXIO;
            }
        } else {
            pr_err("error: didn't find mc9s08dz60 gpio chip\n");
        }
    }

    if (gpio_is_valid(lcd_power_gpio))
        gpio_set_value_cansleep(lcd_power_gpio, power);
}

static struct plat_lcd_data mx35_3ds_lcd_data = {
    .set_power = mx35_3ds_lcd_set_power,
};

static struct platform_device mx35_3ds_lcd = {
    .name = "platform-lcd",
    .dev.platform_data = &mx35_3ds_lcd_data,
};

static const struct imxuart_platform_data uart_pdata __initconst = {
    .flags = IMXUART_HAVE_RTSCTS,
};

static struct physmap_flash_data mx35pdk_flash_data = {
    .width  = 2,
};

static struct resource mx35pdk_flash_resource = {
    .start  = MX35_CS0_BASE_ADDR,
    .end    = MX35_CS0_BASE_ADDR + SZ_64M - 1,
    .flags  = IORESOURCE_MEM,
};

static struct platform_device mx35pdk_flash = {
    .name   = "physmap-flash",
    .id = 0,
    .dev    = {
        .platform_data  = &mx35pdk_flash_data,
    },
    .resource = &mx35pdk_flash_resource,
    .num_resources = 1,
};

static const struct mxc_nand_platform_data mx35pdk_nand_board_info __initconst = {
    .width = 1,
    .hw_ecc = 1,
    .flash_bbt = 1,
};

static struct platform_device *devices[] __initdata = {
    &mx35pdk_flash,
};

static iomux_v3_cfg_t mx35pdk_pads[] = {
    /* UART1 */
    MX35_PAD_CTS1__UART1_CTS,
    MX35_PAD_RTS1__UART1_RTS,
    MX35_PAD_TXD1__UART1_TXD_MUX,
    MX35_PAD_RXD1__UART1_RXD_MUX,
    /* FEC */
    MX35_PAD_FEC_TX_CLK__FEC_TX_CLK,
    MX35_PAD_FEC_RX_CLK__FEC_RX_CLK,
    MX35_PAD_FEC_RX_DV__FEC_RX_DV,
    MX35_PAD_FEC_COL__FEC_COL,
    MX35_PAD_FEC_RDATA0__FEC_RDATA_0,
    MX35_PAD_FEC_TDATA0__FEC_TDATA_0,
    MX35_PAD_FEC_TX_EN__FEC_TX_EN,
    MX35_PAD_FEC_MDC__FEC_MDC,
    MX35_PAD_FEC_MDIO__FEC_MDIO,
    MX35_PAD_FEC_TX_ERR__FEC_TX_ERR,
    MX35_PAD_FEC_RX_ERR__FEC_RX_ERR,
    MX35_PAD_FEC_CRS__FEC_CRS,
    MX35_PAD_FEC_RDATA1__FEC_RDATA_1,
    MX35_PAD_FEC_TDATA1__FEC_TDATA_1,
    MX35_PAD_FEC_RDATA2__FEC_RDATA_2,
    MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
    MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
    MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
    /* USBOTG */
    MX35_PAD_USBOTG_PWR__USB_TOP_USBOTG_PWR,
    MX35_PAD_USBOTG_OC__USB_TOP_USBOTG_OC,
    /* USBH1 */
    MX35_PAD_I2C2_CLK__USB_TOP_USBH2_PWR,
    MX35_PAD_I2C2_DAT__USB_TOP_USBH2_OC,
    /* SDCARD */
    MX35_PAD_SD1_CMD__ESDHC1_CMD,
    MX35_PAD_SD1_CLK__ESDHC1_CLK,
    MX35_PAD_SD1_DATA0__ESDHC1_DAT0,
    MX35_PAD_SD1_DATA1__ESDHC1_DAT1,
    MX35_PAD_SD1_DATA2__ESDHC1_DAT2,
    MX35_PAD_SD1_DATA3__ESDHC1_DAT3,
    /* I2C1 */
    MX35_PAD_I2C1_CLK__I2C1_SCL,
    MX35_PAD_I2C1_DAT__I2C1_SDA,
    /* Display */
    MX35_PAD_LD0__IPU_DISPB_DAT_0,
    MX35_PAD_LD1__IPU_DISPB_DAT_1,
    MX35_PAD_LD2__IPU_DISPB_DAT_2,
    MX35_PAD_LD3__IPU_DISPB_DAT_3,
    MX35_PAD_LD4__IPU_DISPB_DAT_4,
    MX35_PAD_LD5__IPU_DISPB_DAT_5,
    MX35_PAD_LD6__IPU_DISPB_DAT_6,
    MX35_PAD_LD7__IPU_DISPB_DAT_7,
    MX35_PAD_LD8__IPU_DISPB_DAT_8,
    MX35_PAD_LD9__IPU_DISPB_DAT_9,
    MX35_PAD_LD10__IPU_DISPB_DAT_10,
    MX35_PAD_LD11__IPU_DISPB_DAT_11,
    MX35_PAD_LD12__IPU_DISPB_DAT_12,
    MX35_PAD_LD13__IPU_DISPB_DAT_13,
    MX35_PAD_LD14__IPU_DISPB_DAT_14,
    MX35_PAD_LD15__IPU_DISPB_DAT_15,
    MX35_PAD_LD16__IPU_DISPB_DAT_16,
    MX35_PAD_LD17__IPU_DISPB_DAT_17,
    MX35_PAD_D3_HSYNC__IPU_DISPB_D3_HSYNC,
    MX35_PAD_D3_FPSHIFT__IPU_DISPB_D3_CLK,
    MX35_PAD_D3_DRDY__IPU_DISPB_D3_DRDY,
    MX35_PAD_CONTRAST__IPU_DISPB_CONTR,
    MX35_PAD_D3_VSYNC__IPU_DISPB_D3_VSYNC,
    MX35_PAD_D3_REV__IPU_DISPB_D3_REV,
    MX35_PAD_D3_CLS__IPU_DISPB_D3_CLS,
    /* CSI */
    MX35_PAD_TX1__IPU_CSI_D_6,
    MX35_PAD_TX0__IPU_CSI_D_7,
    MX35_PAD_CSI_D8__IPU_CSI_D_8,
    MX35_PAD_CSI_D9__IPU_CSI_D_9,
    MX35_PAD_CSI_D10__IPU_CSI_D_10,
    MX35_PAD_CSI_D11__IPU_CSI_D_11,
    MX35_PAD_CSI_D12__IPU_CSI_D_12,
    MX35_PAD_CSI_D13__IPU_CSI_D_13,
    MX35_PAD_CSI_D14__IPU_CSI_D_14,
    MX35_PAD_CSI_D15__IPU_CSI_D_15,
    MX35_PAD_CSI_HSYNC__IPU_CSI_HSYNC,
    MX35_PAD_CSI_MCLK__IPU_CSI_MCLK,
    MX35_PAD_CSI_PIXCLK__IPU_CSI_PIXCLK,
    MX35_PAD_CSI_VSYNC__IPU_CSI_VSYNC,
    /*PMIC IRQ*/
    MX35_PAD_GPIO2_0__GPIO2_0,
};

/*
 * Camera support
*/
static phys_addr_t mx3_camera_base __initdata;
#define MX35_3DS_CAMERA_BUF_SIZE SZ_8M

static const struct mx3_camera_pdata mx35_3ds_camera_pdata __initconst = {
    .flags = MX3_CAMERA_DATAWIDTH_8,
    .mclk_10khz = 2000,
};

static int __init imx35_3ds_init_camera(void)
{
    int dma, ret = -ENOMEM;
    struct platform_device *pdev =
        imx35_alloc_mx3_camera(&mx35_3ds_camera_pdata);

    if (IS_ERR(pdev))
        return PTR_ERR(pdev);

    if (!mx3_camera_base)
        goto err;

    dma = dma_declare_coherent_memory(&pdev->dev,
                    mx3_camera_base, mx3_camera_base,
                    MX35_3DS_CAMERA_BUF_SIZE,
                    DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);

    if (!(dma & DMA_MEMORY_MAP))
        goto err;

    ret = platform_device_add(pdev);
    if (ret)
err:
        platform_device_put(pdev);

    return ret;
}

static struct i2c_board_info mx35_3ds_i2c_camera = {
    I2C_BOARD_INFO("ov2640", 0x30),
};

static struct soc_camera_link iclink_ov2640 = {
    .bus_id     = 0,
    .board_info = &mx35_3ds_i2c_camera,
    .i2c_adapter_id = 0,
    .power      = NULL,
};

static struct platform_device mx35_3ds_ov2640 = {
    .name   = "soc-camera-pdrv",
    .id = 0,
    .dev    = {
        .platform_data = &iclink_ov2640,
    },
};

static struct regulator_consumer_supply sw1_consumers[] = {
    {
        .supply = "cpu_vcc",
    }
};

static struct regulator_consumer_supply vcam_consumers[] = {
    /* sgtl5000 */
    REGULATOR_SUPPLY("VDDA", "0-000a"),
};

static struct regulator_consumer_supply vaudio_consumers[] = {
    REGULATOR_SUPPLY("cmos_vio", "soc-camera-pdrv.0"),
};

static struct regulator_init_data sw1_init = {
    .constraints = {
        .name = "SW1",
        .min_uV = 600000,
        .max_uV = 1375000,
        .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
        .valid_modes_mask = 0,
        .always_on = 1,
        .boot_on = 1,
    },
    .num_consumer_supplies = ARRAY_SIZE(sw1_consumers),
    .consumer_supplies = sw1_consumers,
};

static struct regulator_init_data sw2_init = {
    .constraints = {
        .name = "SW2",
        .always_on = 1,
        .boot_on = 1,
    }
};

static struct regulator_init_data sw3_init = {
    .constraints = {
        .name = "SW3",
        .always_on = 1,
        .boot_on = 1,
    }
};

static struct regulator_init_data sw4_init = {
    .constraints = {
        .name = "SW4",
        .always_on = 1,
        .boot_on = 1,
    }
};

static struct regulator_init_data viohi_init = {
    .constraints = {
        .name = "VIOHI",
        .boot_on = 1,
    }
};

static struct regulator_init_data vusb_init = {
    .constraints = {
        .name = "VUSB",
        .boot_on = 1,
    }
};

static struct regulator_init_data vdig_init = {
    .constraints = {
        .name = "VDIG",
        .boot_on = 1,
    }
};

static struct regulator_init_data vpll_init = {
    .constraints = {
        .name = "VPLL",
        .boot_on = 1,
    }
};

static struct regulator_init_data vusb2_init = {
    .constraints = {
        .name = "VUSB2",
        .boot_on = 1,
    }
};

static struct regulator_init_data vvideo_init = {
    .constraints = {
        .name = "VVIDEO",
        .boot_on = 1
    }
};

static struct regulator_init_data vaudio_init = {
    .constraints = {
        .name = "VAUDIO",
        .min_uV = 2300000,
        .max_uV = 3000000,
        .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
        .boot_on = 1
    },
    .num_consumer_supplies = ARRAY_SIZE(vaudio_consumers),
    .consumer_supplies = vaudio_consumers,
};

static struct regulator_init_data vcam_init = {
    .constraints = {
        .name = "VCAM",
        .min_uV = 2500000,
        .max_uV = 3000000,
        .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
                    REGULATOR_CHANGE_MODE,
        .valid_modes_mask = REGULATOR_MODE_FAST | REGULATOR_MODE_NORMAL,
        .boot_on = 1
    },
    .num_consumer_supplies = ARRAY_SIZE(vcam_consumers),
    .consumer_supplies = vcam_consumers,
};

static struct regulator_init_data vgen1_init = {
    .constraints = {
        .name = "VGEN1",
    }
};

static struct regulator_init_data vgen2_init = {
    .constraints = {
        .name = "VGEN2",
        .boot_on = 1,
    }
};

static struct regulator_init_data vgen3_init = {
    .constraints = {
        .name = "VGEN3",
    }
};

static struct mc13xxx_regulator_init_data mx35_3ds_regulators[] = {
    { .id = MC13892_SW1, .init_data = &sw1_init },
    { .id = MC13892_SW2, .init_data = &sw2_init },
    { .id = MC13892_SW3, .init_data = &sw3_init },
    { .id = MC13892_SW4, .init_data = &sw4_init },
    { .id = MC13892_VIOHI, .init_data = &viohi_init },
    { .id = MC13892_VPLL, .init_data = &vpll_init },
    { .id = MC13892_VDIG, .init_data = &vdig_init },
    { .id = MC13892_VUSB2, .init_data = &vusb2_init },
    { .id = MC13892_VVIDEO, .init_data = &vvideo_init },
    { .id = MC13892_VAUDIO, .init_data = &vaudio_init },
    { .id = MC13892_VCAM, .init_data = &vcam_init },
    { .id = MC13892_VGEN1, .init_data = &vgen1_init },
    { .id = MC13892_VGEN2, .init_data = &vgen2_init },
    { .id = MC13892_VGEN3, .init_data = &vgen3_init },
    { .id = MC13892_VUSB, .init_data = &vusb_init },
};

static struct mc13xxx_platform_data mx35_3ds_mc13892_data = {
    .flags = MC13XXX_USE_RTC | MC13XXX_USE_TOUCHSCREEN,
    .regulators = {
        .num_regulators = ARRAY_SIZE(mx35_3ds_regulators),
        .regulators = mx35_3ds_regulators,
    },
};

#define GPIO_PMIC_INT IMX_GPIO_NR(2, 0)

static struct i2c_board_info mx35_3ds_i2c_mc13892 = {

    I2C_BOARD_INFO("mc13892", 0x08),
    .platform_data = &mx35_3ds_mc13892_data,
    /* irq number is run-time assigned */
};

static void __init imx35_3ds_init_mc13892(void)
{
    int ret = gpio_request_one(GPIO_PMIC_INT, GPIOF_DIR_IN, "pmic irq");

    if (ret) {
        pr_err("failed to get pmic irq: %d\n", ret);
        return;
    }

    mx35_3ds_i2c_mc13892.irq = gpio_to_irq(GPIO_PMIC_INT);
    i2c_register_board_info(0, &mx35_3ds_i2c_mc13892, 1);
}

static int mx35_3ds_otg_init(struct platform_device *pdev)
{
    return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERNAL_PHY);
}

/* OTG config */
static const struct fsl_usb2_platform_data usb_otg_pdata __initconst = {
    .operating_mode = FSL_USB2_DR_DEVICE,
    .phy_mode   = FSL_USB2_PHY_UTMI_WIDE,
    .workaround = FLS_USB2_WORKAROUND_ENGCM09152,
/*
 * ENGCM09152 also requires a hardware change.
 * Please check the MX35 Chip Errata document for details.
 */
};

static struct mxc_usbh_platform_data otg_pdata __initdata = {
    .init   = mx35_3ds_otg_init,
    .portsc = MXC_EHCI_MODE_UTMI,
};

static int mx35_3ds_usbh_init(struct platform_device *pdev)
{
    return mx35_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_SINGLE_UNI |
              MXC_EHCI_INTERNAL_PHY);
}

/* USB HOST config */
static const struct mxc_usbh_platform_data usb_host_pdata __initconst = {
    .init       = mx35_3ds_usbh_init,
    .portsc     = MXC_EHCI_MODE_SERIAL,
};

static bool otg_mode_host __initdata;

static int __init mx35_3ds_otg_mode(char *options)
{
    if (!strcmp(options, "host"))
        otg_mode_host = true;
    else if (!strcmp(options, "device"))
        otg_mode_host = false;
    else
        pr_info("otg_mode neither \"host\" nor \"device\". "
            "Defaulting to device\n");
    return 1;
}
__setup("otg_mode=", mx35_3ds_otg_mode);

static const struct imxi2c_platform_data mx35_3ds_i2c0_data __initconst = {
    .bitrate = 100000,
};

/*
 * Board specific initialization.
 */
static void __init mx35_3ds_init(void)
{
    struct platform_device *imx35_fb_pdev;

    imx35_soc_init();

    mxc_iomux_v3_setup_multiple_pads(mx35pdk_pads, ARRAY_SIZE(mx35pdk_pads));

    imx35_add_fec(NULL);
    imx35_add_imx2_wdt();
    imx35_add_mxc_rtc();
    platform_add_devices(devices, ARRAY_SIZE(devices));

    imx35_add_imx_uart0(&uart_pdata);

    if (otg_mode_host)
        imx35_add_mxc_ehci_otg(&otg_pdata);

    imx35_add_mxc_ehci_hs(&usb_host_pdata);

    if (!otg_mode_host)
        imx35_add_fsl_usb2_udc(&usb_otg_pdata);

    imx35_add_mxc_nand(&mx35pdk_nand_board_info);
    imx35_add_sdhci_esdhc_imx(0, NULL);

    if (mxc_expio_init(MX35_CS5_BASE_ADDR, IMX_GPIO_NR(1, 1)))
        pr_warn("Init of the debugboard failed, all "
                "devices on the debugboard are unusable.\n");
    imx35_add_imx_i2c0(&mx35_3ds_i2c0_data);

    i2c_register_board_info(
        0, i2c_devices_3ds, ARRAY_SIZE(i2c_devices_3ds));

    imx35_add_ipu_core();
    platform_device_register(&mx35_3ds_ov2640);
    imx35_3ds_init_camera();

    imx35_fb_pdev = imx35_add_mx3_sdc_fb(&mx3fb_pdata);
    mx35_3ds_lcd.dev.parent = &imx35_fb_pdev->dev;
    platform_device_register(&mx35_3ds_lcd);

    imx35_3ds_init_mc13892();
}

static void __init mx35pdk_timer_init(void)
{
    mx35_clocks_init();
}

static struct sys_timer mx35pdk_timer = {
    .init   = mx35pdk_timer_init,
};

static void __init mx35_3ds_reserve(void)
{
    /* reserve MX35_3DS_CAMERA_BUF_SIZE bytes for mx3-camera */
    mx3_camera_base = arm_memblock_steal(MX35_3DS_CAMERA_BUF_SIZE,
                     MX35_3DS_CAMERA_BUF_SIZE);
}

MACHINE_START(MX35_3DS, "Freescale MX35PDK")
    /* Maintainer: Freescale Semiconductor, Inc */
    .atag_offset = 0x100,
    .map_io = mx35_map_io,
    .init_early = imx35_init_early,
    .init_irq = mx35_init_irq,
    .handle_irq = imx35_handle_irq,
    .timer = &mx35pdk_timer,
    .init_machine = mx35_3ds_init,
    .reserve = mx35_3ds_reserve,
    .restart    = mxc_restart,
MACHINE_END