mach-imx27_visstrim_m10.c

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/*
 * mach-imx27_visstrim_m10.c
 *
 * Copyright 2010  Javier Martin <[email protected]>
 *
 * Based on mach-pcm038.c, mach-pca100.c, mach-mx27ads.c and others.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/platform_device.h>
#include <linux/mtd/physmap.h>
#include <linux/i2c.h>
#include <linux/i2c/pca953x.h>
#include <linux/input.h>
#include <linux/gpio.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/leds.h>
#include <linux/platform_data/asoc-mx27vis.h>
#include <media/soc_camera.h>
#include <sound/tlv320aic32x4.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/system_info.h>
#include <asm/memblock.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/iomux-mx27.h>

#include "devices-imx27.h"

#define TVP5150_RSTN (GPIO_PORTC + 18)
#define TVP5150_PWDN (GPIO_PORTC + 19)
#define OTG_PHY_CS_GPIO (GPIO_PORTF + 17)
#define SDHC1_IRQ_GPIO IMX_GPIO_NR(2, 25)

#define MOTHERBOARD_BIT2    (GPIO_PORTD + 31)
#define MOTHERBOARD_BIT1    (GPIO_PORTD + 30)
#define MOTHERBOARD_BIT0    (GPIO_PORTD + 29)

#define EXPBOARD_BIT2       (GPIO_PORTD + 25)
#define EXPBOARD_BIT1       (GPIO_PORTD + 27)
#define EXPBOARD_BIT0       (GPIO_PORTD + 28)

#define AMP_GAIN_0      (GPIO_PORTF + 9)
#define AMP_GAIN_1      (GPIO_PORTF + 8)
#define AMP_MUTE_SDL        (GPIO_PORTE + 5)
#define AMP_MUTE_SDR        (GPIO_PORTF + 7)

static const int visstrim_m10_pins[] __initconst = {
    /* UART1 (console) */
    PE12_PF_UART1_TXD,
    PE13_PF_UART1_RXD,
    PE14_PF_UART1_CTS,
    PE15_PF_UART1_RTS,
    /* FEC */
    PD0_AIN_FEC_TXD0,
    PD1_AIN_FEC_TXD1,
    PD2_AIN_FEC_TXD2,
    PD3_AIN_FEC_TXD3,
    PD4_AOUT_FEC_RX_ER,
    PD5_AOUT_FEC_RXD1,
    PD6_AOUT_FEC_RXD2,
    PD7_AOUT_FEC_RXD3,
    PD8_AF_FEC_MDIO,
    PD9_AIN_FEC_MDC,
    PD10_AOUT_FEC_CRS,
    PD11_AOUT_FEC_TX_CLK,
    PD12_AOUT_FEC_RXD0,
    PD13_AOUT_FEC_RX_DV,
    PD14_AOUT_FEC_RX_CLK,
    PD15_AOUT_FEC_COL,
    PD16_AIN_FEC_TX_ER,
    PF23_AIN_FEC_TX_EN,
    /* SSI1 */
    PC20_PF_SSI1_FS,
    PC21_PF_SSI1_RXD,
    PC22_PF_SSI1_TXD,
    PC23_PF_SSI1_CLK,
    /* SDHC1 */
    PE18_PF_SD1_D0,
    PE19_PF_SD1_D1,
    PE20_PF_SD1_D2,
    PE21_PF_SD1_D3,
    PE22_PF_SD1_CMD,
    PE23_PF_SD1_CLK,
    /* Both I2Cs */
    PD17_PF_I2C_DATA,
    PD18_PF_I2C_CLK,
    PC5_PF_I2C2_SDA,
    PC6_PF_I2C2_SCL,
    /* USB OTG */
    OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
    PC9_PF_USBOTG_DATA0,
    PC11_PF_USBOTG_DATA1,
    PC10_PF_USBOTG_DATA2,
    PC13_PF_USBOTG_DATA3,
    PC12_PF_USBOTG_DATA4,
    PC7_PF_USBOTG_DATA5,
    PC8_PF_USBOTG_DATA6,
    PE25_PF_USBOTG_DATA7,
    PE24_PF_USBOTG_CLK,
    PE2_PF_USBOTG_DIR,
    PE0_PF_USBOTG_NXT,
    PE1_PF_USBOTG_STP,
    PB23_PF_USB_PWR,
    PB24_PF_USB_OC,
    /* CSI */
    TVP5150_RSTN | GPIO_GPIO | GPIO_OUT,
    TVP5150_PWDN | GPIO_GPIO | GPIO_OUT,
    PB10_PF_CSI_D0,
    PB11_PF_CSI_D1,
    PB12_PF_CSI_D2,
    PB13_PF_CSI_D3,
    PB14_PF_CSI_D4,
    PB15_PF_CSI_MCLK,
    PB16_PF_CSI_PIXCLK,
    PB17_PF_CSI_D5,
    PB18_PF_CSI_D6,
    PB19_PF_CSI_D7,
    PB20_PF_CSI_VSYNC,
    PB21_PF_CSI_HSYNC,
    /* mother board version */
    MOTHERBOARD_BIT2 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
    MOTHERBOARD_BIT1 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
    MOTHERBOARD_BIT0 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
    /* expansion board version */
    EXPBOARD_BIT2 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
    EXPBOARD_BIT1 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
    EXPBOARD_BIT0 | GPIO_GPIO | GPIO_IN | GPIO_PUEN,
    /* Audio AMP control */
    AMP_GAIN_0 | GPIO_GPIO | GPIO_OUT,
    AMP_GAIN_1 | GPIO_GPIO | GPIO_OUT,
    AMP_MUTE_SDL | GPIO_GPIO | GPIO_OUT,
    AMP_MUTE_SDR | GPIO_GPIO | GPIO_OUT,
};

static struct gpio visstrim_m10_version_gpios[] = {
    { EXPBOARD_BIT0, GPIOF_IN, "exp-version-0" },
    { EXPBOARD_BIT1, GPIOF_IN, "exp-version-1" },
    { EXPBOARD_BIT2, GPIOF_IN, "exp-version-2" },
    { MOTHERBOARD_BIT0, GPIOF_IN, "mother-version-0" },
    { MOTHERBOARD_BIT1, GPIOF_IN, "mother-version-1" },
    { MOTHERBOARD_BIT2, GPIOF_IN, "mother-version-2" },
};

static const struct gpio visstrim_m10_gpios[] __initconst = {
    {
        .gpio = TVP5150_RSTN,
        .flags = GPIOF_DIR_OUT | GPIOF_INIT_HIGH,
        .label = "tvp5150_rstn",
    },
    {
        .gpio = TVP5150_PWDN,
        .flags = GPIOF_DIR_OUT | GPIOF_INIT_LOW,
        .label = "tvp5150_pwdn",
    },
    {
        .gpio = OTG_PHY_CS_GPIO,
        .flags = GPIOF_DIR_OUT | GPIOF_INIT_LOW,
        .label = "usbotg_cs",
    },
    {
        .gpio = AMP_GAIN_0,
        .flags = GPIOF_DIR_OUT,
        .label = "amp-gain-0",
    },
    {
        .gpio = AMP_GAIN_1,
        .flags = GPIOF_DIR_OUT,
        .label = "amp-gain-1",
    },
    {
        .gpio = AMP_MUTE_SDL,
        .flags = GPIOF_DIR_OUT,
        .label = "amp-mute-sdl",
    },
    {
        .gpio = AMP_MUTE_SDR,
        .flags = GPIOF_DIR_OUT,
        .label = "amp-mute-sdr",
    },
};

/* Camera */
static int visstrim_camera_power(struct device *dev, int on)
{
    gpio_set_value(TVP5150_PWDN, on);

    return 0;
};

static int visstrim_camera_reset(struct device *dev)
{
    gpio_set_value(TVP5150_RSTN, 0);
    ndelay(500);
    gpio_set_value(TVP5150_RSTN, 1);

    return 0;
};

static struct i2c_board_info visstrim_i2c_camera =  {
    I2C_BOARD_INFO("tvp5150", 0x5d),
};

static struct soc_camera_link iclink_tvp5150 = {
    .bus_id         = 0,
    .board_info     = &visstrim_i2c_camera,
    .i2c_adapter_id = 0,
    .power = visstrim_camera_power,
    .reset = visstrim_camera_reset,
};

static struct mx2_camera_platform_data visstrim_camera = {
    .flags = MX2_CAMERA_CCIR | MX2_CAMERA_CCIR_INTERLACE |
         MX2_CAMERA_PCLK_SAMPLE_RISING,
    .clk = 100000,
};

static phys_addr_t mx2_camera_base __initdata;
#define MX2_CAMERA_BUF_SIZE SZ_8M

static void __init visstrim_camera_init(void)
{
    struct platform_device *pdev;
    int dma;

    gpio_set_value(TVP5150_PWDN, 1);
    ndelay(1);
    gpio_set_value(TVP5150_RSTN, 0);
    ndelay(500);
    gpio_set_value(TVP5150_RSTN, 1);
    ndelay(200000);

    pdev = imx27_add_mx2_camera(&visstrim_camera);
    if (IS_ERR(pdev))
        return;

    dma = dma_declare_coherent_memory(&pdev->dev,
                mx2_camera_base, mx2_camera_base,
                MX2_CAMERA_BUF_SIZE,
                DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
    if (!(dma & DMA_MEMORY_MAP))
        return;
}

static void __init visstrim_reserve(void)
{
    /* reserve 4 MiB for mx2-camera */
    mx2_camera_base = arm_memblock_steal(3 * MX2_CAMERA_BUF_SIZE,
            MX2_CAMERA_BUF_SIZE);
}

/* GPIOs used as events for applications */
static struct gpio_keys_button visstrim_gpio_keys[] = {
    {
        .type   = EV_KEY,
        .code   = KEY_RESTART,
        .gpio   = (GPIO_PORTC + 15),
        .desc   = "Default config",
        .active_low = 0,
        .wakeup = 1,
    },
    {
        .type   = EV_KEY,
        .code   = KEY_RECORD,
        .gpio   = (GPIO_PORTF + 14),
        .desc   = "Record",
        .active_low = 0,
        .wakeup = 1,
    },
    {
        .type   = EV_KEY,
        .code   = KEY_STOP,
        .gpio   = (GPIO_PORTF + 13),
        .desc   = "Stop",
        .active_low = 0,
        .wakeup = 1,
    }
};

static const struct gpio_keys_platform_data
        visstrim_gpio_keys_platform_data __initconst = {
    .buttons    = visstrim_gpio_keys,
    .nbuttons   = ARRAY_SIZE(visstrim_gpio_keys),
};

/* led */
static const struct gpio_led visstrim_m10_leds[] __initconst = {
    {
        .name = "visstrim:ld0",
        .default_trigger = "nand-disk",
        .gpio = (GPIO_PORTC + 29),
    },
    {
        .name = "visstrim:ld1",
        .default_trigger = "nand-disk",
        .gpio = (GPIO_PORTC + 24),
    },
    {
        .name = "visstrim:ld2",
        .default_trigger = "nand-disk",
        .gpio = (GPIO_PORTC + 28),
    },
    {
        .name = "visstrim:ld3",
        .default_trigger = "nand-disk",
        .gpio = (GPIO_PORTC + 25),
    },
};

static const struct gpio_led_platform_data visstrim_m10_led_data __initconst = {
    .leds = visstrim_m10_leds,
    .num_leds = ARRAY_SIZE(visstrim_m10_leds),
};

/* Visstrim_SM10 has a microSD slot connected to sdhc1 */
static int visstrim_m10_sdhc1_init(struct device *dev,
        irq_handler_t detect_irq, void *data)
{
    int ret;

    ret = request_irq(gpio_to_irq(SDHC1_IRQ_GPIO), detect_irq,
              IRQF_TRIGGER_FALLING, "mmc-detect", data);
    return ret;
}

static void visstrim_m10_sdhc1_exit(struct device *dev, void *data)
{
    free_irq(gpio_to_irq(SDHC1_IRQ_GPIO), data);
}

static const struct imxmmc_platform_data visstrim_m10_sdhc_pdata __initconst = {
    .init = visstrim_m10_sdhc1_init,
    .exit = visstrim_m10_sdhc1_exit,
};

/* Visstrim_SM10 NOR flash */
static struct physmap_flash_data visstrim_m10_flash_data = {
    .width = 2,
};

static struct resource visstrim_m10_flash_resource = {
    .start = 0xc0000000,
    .end = 0xc0000000 + SZ_64M - 1,
    .flags = IORESOURCE_MEM,
};

static struct platform_device visstrim_m10_nor_mtd_device = {
    .name = "physmap-flash",
    .id = 0,
    .dev = {
        .platform_data = &visstrim_m10_flash_data,
    },
    .num_resources = 1,
    .resource = &visstrim_m10_flash_resource,
};

static struct platform_device *platform_devices[] __initdata = {
    &visstrim_m10_nor_mtd_device,
};

/* Visstrim_M10 uses UART0 as console */
static const struct imxuart_platform_data uart_pdata __initconst = {
    .flags = IMXUART_HAVE_RTSCTS,
};

/* I2C */
static const struct imxi2c_platform_data visstrim_m10_i2c_data __initconst = {
    .bitrate = 100000,
};

static struct pca953x_platform_data visstrim_m10_pca9555_pdata = {
    .gpio_base = 240, /* After MX27 internal GPIOs */
    .invert = 0,
};

static struct aic32x4_pdata visstrim_m10_aic32x4_pdata = {
    .power_cfg = AIC32X4_PWR_MICBIAS_2075_LDOIN |
             AIC32X4_PWR_AVDD_DVDD_WEAK_DISABLE |
             AIC32X4_PWR_AIC32X4_LDO_ENABLE |
             AIC32X4_PWR_CMMODE_LDOIN_RANGE_18_36 |
             AIC32X4_PWR_CMMODE_HP_LDOIN_POWERED,
    .micpga_routing = AIC32X4_MICPGA_ROUTE_LMIC_IN2R_10K |
             AIC32X4_MICPGA_ROUTE_RMIC_IN1L_10K,
    .swapdacs = false,
};

static struct i2c_board_info visstrim_m10_i2c_devices[] = {
    {
        I2C_BOARD_INFO("pca9555", 0x20),
        .platform_data = &visstrim_m10_pca9555_pdata,
    },
    {
        I2C_BOARD_INFO("tlv320aic32x4", 0x18),
        .platform_data = &visstrim_m10_aic32x4_pdata,
    },
    {
         I2C_BOARD_INFO("m41t00", 0x68),
    }
};

/* USB OTG */
static int otg_phy_init(struct platform_device *pdev)
{
    return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
}

static const struct mxc_usbh_platform_data
visstrim_m10_usbotg_pdata __initconst = {
    .init = otg_phy_init,
    .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
};

/* SSI */
static const struct imx_ssi_platform_data visstrim_m10_ssi_pdata __initconst = {
    .flags          = IMX_SSI_DMA | IMX_SSI_SYN,
};

/* coda */

static void __init visstrim_coda_init(void)
{
    struct platform_device *pdev;
    int dma;

    pdev = imx27_add_coda();
    dma = dma_declare_coherent_memory(&pdev->dev,
                      mx2_camera_base + MX2_CAMERA_BUF_SIZE,
                      mx2_camera_base + MX2_CAMERA_BUF_SIZE,
                      MX2_CAMERA_BUF_SIZE,
                      DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
    if (!(dma & DMA_MEMORY_MAP))
        return;
}

/* DMA deinterlace */
static struct platform_device visstrim_deinterlace = {
    .name = "m2m-deinterlace",
    .id = 0,
};

static void __init visstrim_deinterlace_init(void)
{
    int ret = -ENOMEM;
    struct platform_device *pdev = &visstrim_deinterlace;
    int dma;

    ret = platform_device_register(pdev);

    dma = dma_declare_coherent_memory(&pdev->dev,
                      mx2_camera_base + 2 * MX2_CAMERA_BUF_SIZE,
                      mx2_camera_base + 2 * MX2_CAMERA_BUF_SIZE,
                      MX2_CAMERA_BUF_SIZE,
                      DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
    if (!(dma & DMA_MEMORY_MAP))
        return;
}


/* Audio */
static const struct snd_mx27vis_platform_data snd_mx27vis_pdata __initconst = {
    .amp_gain0_gpio = AMP_GAIN_0,
    .amp_gain1_gpio = AMP_GAIN_1,
    .amp_mutel_gpio = AMP_MUTE_SDL,
    .amp_muter_gpio = AMP_MUTE_SDR,
};

static void __init visstrim_m10_revision(void)
{
    int exp_version = 0;
    int mo_version = 0;
    int ret;

    ret = gpio_request_array(visstrim_m10_version_gpios,
                 ARRAY_SIZE(visstrim_m10_version_gpios));
    if (ret) {
        pr_err("Failed to request version gpios");
        return;
    }

    /* Get expansion board version (negative logic) */
    exp_version |= !gpio_get_value(EXPBOARD_BIT2) << 2;
    exp_version |= !gpio_get_value(EXPBOARD_BIT1) << 1;
    exp_version |= !gpio_get_value(EXPBOARD_BIT0);

    /* Get mother board version (negative logic) */
    mo_version |= !gpio_get_value(MOTHERBOARD_BIT2) << 2;
    mo_version |= !gpio_get_value(MOTHERBOARD_BIT1) << 1;
    mo_version |= !gpio_get_value(MOTHERBOARD_BIT0);

    system_rev = 0x27000;
    system_rev |= (mo_version << 4);
    system_rev |= exp_version;
}

static void __init visstrim_m10_board_init(void)
{
    int ret;

    imx27_soc_init();
    visstrim_m10_revision();

    ret = mxc_gpio_setup_multiple_pins(visstrim_m10_pins,
            ARRAY_SIZE(visstrim_m10_pins), "VISSTRIM_M10");
    if (ret)
        pr_err("Failed to setup pins (%d)\n", ret);

    ret = gpio_request_array(visstrim_m10_gpios,
                ARRAY_SIZE(visstrim_m10_gpios));
    if (ret)
        pr_err("Failed to request gpios (%d)\n", ret);

    imx27_add_imx_ssi(0, &visstrim_m10_ssi_pdata);
    imx27_add_imx_uart0(&uart_pdata);

    imx27_add_imx_i2c(0, &visstrim_m10_i2c_data);
    imx27_add_imx_i2c(1, &visstrim_m10_i2c_data);
    i2c_register_board_info(0, visstrim_m10_i2c_devices,
                ARRAY_SIZE(visstrim_m10_i2c_devices));

    imx27_add_mxc_mmc(0, &visstrim_m10_sdhc_pdata);
    imx27_add_mxc_ehci_otg(&visstrim_m10_usbotg_pdata);
    imx27_add_fec(NULL);
    imx_add_gpio_keys(&visstrim_gpio_keys_platform_data);
    platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
    imx_add_platform_device("mx27vis", 0, NULL, 0, &snd_mx27vis_pdata,
                sizeof(snd_mx27vis_pdata));
    platform_device_register_resndata(NULL, "soc-camera-pdrv", 0, NULL, 0,
                      &iclink_tvp5150, sizeof(iclink_tvp5150));
    gpio_led_register_device(0, &visstrim_m10_led_data);
    visstrim_deinterlace_init();
    visstrim_camera_init();
    visstrim_coda_init();
}

static void __init visstrim_m10_timer_init(void)
{
    mx27_clocks_init((unsigned long)25000000);
}

static struct sys_timer visstrim_m10_timer = {
    .init   = visstrim_m10_timer_init,
};

MACHINE_START(IMX27_VISSTRIM_M10, "Vista Silicon Visstrim_M10")
    .atag_offset = 0x100,
    .reserve = visstrim_reserve,
    .map_io = mx27_map_io,
    .init_early = imx27_init_early,
    .init_irq = mx27_init_irq,
    .handle_irq = imx27_handle_irq,
    .timer = &visstrim_m10_timer,
    .init_machine = visstrim_m10_board_init,
    .restart    = mxc_restart,
MACHINE_END