board-omap4panda.c

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/*
 * Board support file for OMAP4430 based PandaBoard.
 *
 * Copyright (C) 2010 Texas Instruments
 *
 * Author: David Anders <[email protected]>
 *
 * Based on mach-omap2/board-4430sdp.c
 *
 * Author: Santosh Shilimkar <[email protected]>
 *
 * Based on mach-omap2/board-3430sdp.c
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/leds.h>
#include <linux/gpio.h>
#include <linux/usb/otg.h>
#include <linux/i2c/twl.h>
#include <linux/mfd/twl6040.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/fixed.h>
#include <linux/ti_wilink_st.h>
#include <linux/wl12xx.h>
#include <linux/platform_data/omap-abe-twl6040.h>

#include <asm/hardware/gic.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <video/omapdss.h>

#include "common.h"
#include <plat/usb.h>
#include <plat/mmc.h>
#include <video/omap-panel-tfp410.h>

#include "soc.h"
#include "hsmmc.h"
#include "control.h"
#include "mux.h"
#include "common-board-devices.h"

#define GPIO_HUB_POWER      1
#define GPIO_HUB_NRESET     62
#define GPIO_WIFI_PMENA     43
#define GPIO_WIFI_IRQ       53
#define HDMI_GPIO_CT_CP_HPD 60 /* HPD mode enable/disable */
#define HDMI_GPIO_LS_OE 41 /* Level shifter for HDMI */
#define HDMI_GPIO_HPD  63 /* Hotplug detect */

/* wl127x BT, FM, GPS connectivity chip */
static struct ti_st_plat_data wilink_platform_data = {
    .nshutdown_gpio = 46,
    .dev_name   = "/dev/ttyO1",
    .flow_cntrl = 1,
    .baud_rate  = 3000000,
    .chip_enable    = NULL,
    .suspend    = NULL,
    .resume     = NULL,
};

static struct platform_device wl1271_device = {
    .name   = "kim",
    .id = -1,
    .dev    = {
        .platform_data  = &wilink_platform_data,
    },
};

static struct gpio_led gpio_leds[] = {
    {
        .name           = "pandaboard::status1",
        .default_trigger    = "heartbeat",
        .gpio           = 7,
    },
    {
        .name           = "pandaboard::status2",
        .default_trigger    = "mmc0",
        .gpio           = 8,
    },
};

static struct gpio_led_platform_data gpio_led_info = {
    .leds       = gpio_leds,
    .num_leds   = ARRAY_SIZE(gpio_leds),
};

static struct platform_device leds_gpio = {
    .name   = "leds-gpio",
    .id = -1,
    .dev    = {
        .platform_data  = &gpio_led_info,
    },
};

static struct omap_abe_twl6040_data panda_abe_audio_data = {
    /* Audio out */
    .has_hs     = ABE_TWL6040_LEFT | ABE_TWL6040_RIGHT,
    /* HandsFree through expansion connector */
    .has_hf     = ABE_TWL6040_LEFT | ABE_TWL6040_RIGHT,
    /* PandaBoard: FM TX, PandaBoardES: can be connected to audio out */
    .has_aux    = ABE_TWL6040_LEFT | ABE_TWL6040_RIGHT,
    /* PandaBoard: FM RX, PandaBoardES: audio in */
    .has_afm    = ABE_TWL6040_LEFT | ABE_TWL6040_RIGHT,
    /* No jack detection. */
    .jack_detection = 0,
    /* MCLK input is 38.4MHz */
    .mclk_freq  = 38400000,

};

static struct platform_device panda_abe_audio = {
    .name       = "omap-abe-twl6040",
    .id     = -1,
    .dev = {
        .platform_data = &panda_abe_audio_data,
    },
};

static struct platform_device panda_hdmi_audio_codec = {
    .name   = "hdmi-audio-codec",
    .id = -1,
};

static struct platform_device btwilink_device = {
    .name   = "btwilink",
    .id = -1,
};

static struct platform_device *panda_devices[] __initdata = {
    &leds_gpio,
    &wl1271_device,
    &panda_abe_audio,
    &panda_hdmi_audio_codec,
    &btwilink_device,
};

static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
    .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
    .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
    .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
    .phy_reset  = false,
    .reset_gpio_port[0]  = -EINVAL,
    .reset_gpio_port[1]  = -EINVAL,
    .reset_gpio_port[2]  = -EINVAL
};

static struct gpio panda_ehci_gpios[] __initdata = {
    { GPIO_HUB_POWER,   GPIOF_OUT_INIT_LOW,  "hub_power"  },
    { GPIO_HUB_NRESET,  GPIOF_OUT_INIT_LOW,  "hub_nreset" },
};

static void __init omap4_ehci_init(void)
{
    int ret;
    struct clk *phy_ref_clk;

    /* FREF_CLK3 provides the 19.2 MHz reference clock to the PHY */
    phy_ref_clk = clk_get(NULL, "auxclk3_ck");
    if (IS_ERR(phy_ref_clk)) {
        pr_err("Cannot request auxclk3\n");
        return;
    }
    clk_set_rate(phy_ref_clk, 19200000);
    clk_prepare_enable(phy_ref_clk);

    /* disable the power to the usb hub prior to init and reset phy+hub */
    ret = gpio_request_array(panda_ehci_gpios,
                 ARRAY_SIZE(panda_ehci_gpios));
    if (ret) {
        pr_err("Unable to initialize EHCI power/reset\n");
        return;
    }

    gpio_export(GPIO_HUB_POWER, 0);
    gpio_export(GPIO_HUB_NRESET, 0);
    gpio_set_value(GPIO_HUB_NRESET, 1);

    usbhs_init(&usbhs_bdata);

    /* enable power to hub */
    gpio_set_value(GPIO_HUB_POWER, 1);
}

static struct omap_musb_board_data musb_board_data = {
    .interface_type     = MUSB_INTERFACE_UTMI,
    .mode           = MUSB_OTG,
    .power          = 100,
};

static struct omap2_hsmmc_info mmc[] = {
    {
        .mmc        = 1,
        .caps       = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
        .gpio_wp    = -EINVAL,
        .gpio_cd    = -EINVAL,
    },
    {
        .name       = "wl1271",
        .mmc        = 5,
        .caps       = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
        .gpio_wp    = -EINVAL,
        .gpio_cd    = -EINVAL,
        .ocr_mask   = MMC_VDD_165_195,
        .nonremovable   = true,
    },
    {}  /* Terminator */
};

static struct regulator_consumer_supply omap4_panda_vmmc5_supply[] = {
    REGULATOR_SUPPLY("vmmc", "omap_hsmmc.4"),
};

static struct regulator_init_data panda_vmmc5 = {
    .constraints = {
        .valid_ops_mask = REGULATOR_CHANGE_STATUS,
    },
    .num_consumer_supplies = ARRAY_SIZE(omap4_panda_vmmc5_supply),
    .consumer_supplies = omap4_panda_vmmc5_supply,
};

static struct fixed_voltage_config panda_vwlan = {
    .supply_name = "vwl1271",
    .microvolts = 1800000, /* 1.8V */
    .gpio = GPIO_WIFI_PMENA,
    .startup_delay = 70000, /* 70msec */
    .enable_high = 1,
    .enabled_at_boot = 0,
    .init_data = &panda_vmmc5,
};

static struct platform_device omap_vwlan_device = {
    .name       = "reg-fixed-voltage",
    .id     = 1,
    .dev = {
        .platform_data = &panda_vwlan,
    },
};

static struct wl12xx_platform_data omap_panda_wlan_data  __initdata = {
    .board_ref_clock = WL12XX_REFCLOCK_38, /* 38.4 MHz */
};

static struct twl6040_codec_data twl6040_codec = {
    /* single-step ramp for headset and handsfree */
    .hs_left_step   = 0x0f,
    .hs_right_step  = 0x0f,
    .hf_left_step   = 0x1d,
    .hf_right_step  = 0x1d,
};

static struct twl6040_platform_data twl6040_data = {
    .codec      = &twl6040_codec,
    .audpwron_gpio  = 127,
};

static struct i2c_board_info __initdata panda_i2c_1_boardinfo[] = {
    {
        I2C_BOARD_INFO("twl6040", 0x4b),
        .irq = 119 + OMAP44XX_IRQ_GIC_START,
        .platform_data = &twl6040_data,
    },
};

/* Panda board uses the common PMIC configuration */
static struct twl4030_platform_data omap4_panda_twldata;

/*
 * Display monitor features are burnt in their EEPROM as EDID data. The EEPROM
 * is connected as I2C slave device, and can be accessed at address 0x50
 */
static struct i2c_board_info __initdata panda_i2c_eeprom[] = {
    {
        I2C_BOARD_INFO("eeprom", 0x50),
    },
};

static int __init omap4_panda_i2c_init(void)
{
    omap4_pmic_get_config(&omap4_panda_twldata, TWL_COMMON_PDATA_USB,
            TWL_COMMON_REGULATOR_VDAC |
            TWL_COMMON_REGULATOR_VAUX2 |
            TWL_COMMON_REGULATOR_VAUX3 |
            TWL_COMMON_REGULATOR_VMMC |
            TWL_COMMON_REGULATOR_VPP |
            TWL_COMMON_REGULATOR_VANA |
            TWL_COMMON_REGULATOR_VCXIO |
            TWL_COMMON_REGULATOR_VUSB |
            TWL_COMMON_REGULATOR_CLK32KG |
            TWL_COMMON_REGULATOR_V1V8 |
            TWL_COMMON_REGULATOR_V2V1);
    omap4_pmic_init("twl6030", &omap4_panda_twldata, panda_i2c_1_boardinfo,
            ARRAY_SIZE(panda_i2c_1_boardinfo));
    omap_register_i2c_bus(2, 400, NULL, 0);
    /*
     * Bus 3 is attached to the DVI port where devices like the pico DLP
     * projector don't work reliably with 400kHz
     */
    omap_register_i2c_bus(3, 100, panda_i2c_eeprom,
                    ARRAY_SIZE(panda_i2c_eeprom));
    omap_register_i2c_bus(4, 400, NULL, 0);
    return 0;
}

#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
    /* WLAN IRQ - GPIO 53 */
    OMAP4_MUX(GPMC_NCS3, OMAP_MUX_MODE3 | OMAP_PIN_INPUT),
    /* WLAN POWER ENABLE - GPIO 43 */
    OMAP4_MUX(GPMC_A19, OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT),
    /* WLAN SDIO: MMC5 CMD */
    OMAP4_MUX(SDMMC5_CMD, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
    /* WLAN SDIO: MMC5 CLK */
    OMAP4_MUX(SDMMC5_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
    /* WLAN SDIO: MMC5 DAT[0-3] */
    OMAP4_MUX(SDMMC5_DAT0, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
    OMAP4_MUX(SDMMC5_DAT1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
    OMAP4_MUX(SDMMC5_DAT2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
    OMAP4_MUX(SDMMC5_DAT3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
    /* gpio 0 - TFP410 PD */
    OMAP4_MUX(KPD_COL1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE3),
    /* dispc2_data23 */
    OMAP4_MUX(USBB2_ULPITLL_STP, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data22 */
    OMAP4_MUX(USBB2_ULPITLL_DIR, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data21 */
    OMAP4_MUX(USBB2_ULPITLL_NXT, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data20 */
    OMAP4_MUX(USBB2_ULPITLL_DAT0, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data19 */
    OMAP4_MUX(USBB2_ULPITLL_DAT1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data18 */
    OMAP4_MUX(USBB2_ULPITLL_DAT2, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data15 */
    OMAP4_MUX(USBB2_ULPITLL_DAT3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data14 */
    OMAP4_MUX(USBB2_ULPITLL_DAT4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data13 */
    OMAP4_MUX(USBB2_ULPITLL_DAT5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data12 */
    OMAP4_MUX(USBB2_ULPITLL_DAT6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data11 */
    OMAP4_MUX(USBB2_ULPITLL_DAT7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data10 */
    OMAP4_MUX(DPM_EMU3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data9 */
    OMAP4_MUX(DPM_EMU4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data16 */
    OMAP4_MUX(DPM_EMU5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data17 */
    OMAP4_MUX(DPM_EMU6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_hsync */
    OMAP4_MUX(DPM_EMU7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_pclk */
    OMAP4_MUX(DPM_EMU8, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_vsync */
    OMAP4_MUX(DPM_EMU9, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_de */
    OMAP4_MUX(DPM_EMU10, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data8 */
    OMAP4_MUX(DPM_EMU11, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data7 */
    OMAP4_MUX(DPM_EMU12, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data6 */
    OMAP4_MUX(DPM_EMU13, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data5 */
    OMAP4_MUX(DPM_EMU14, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data4 */
    OMAP4_MUX(DPM_EMU15, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data3 */
    OMAP4_MUX(DPM_EMU16, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data2 */
    OMAP4_MUX(DPM_EMU17, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data1 */
    OMAP4_MUX(DPM_EMU18, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* dispc2_data0 */
    OMAP4_MUX(DPM_EMU19, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
    /* NIRQ2 for twl6040 */
    OMAP4_MUX(SYS_NIRQ2, OMAP_MUX_MODE0 |
          OMAP_PIN_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE),
    /* GPIO_127 for twl6040 */
    OMAP4_MUX(HDQ_SIO, OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT),
    /* McPDM */
    OMAP4_MUX(ABE_PDM_UL_DATA, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
    OMAP4_MUX(ABE_PDM_DL_DATA, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
    OMAP4_MUX(ABE_PDM_FRAME, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
    OMAP4_MUX(ABE_PDM_LB_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
    OMAP4_MUX(ABE_CLKS, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
    /* McBSP1 */
    OMAP4_MUX(ABE_MCBSP1_CLKX, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
    OMAP4_MUX(ABE_MCBSP1_DR, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
    OMAP4_MUX(ABE_MCBSP1_DX, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT |
          OMAP_PULL_ENA),
    OMAP4_MUX(ABE_MCBSP1_FSX, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),

    { .reg_offset = OMAP_MUX_TERMINATOR },
};

#else
#define board_mux   NULL
#endif

/* Display DVI */
#define PANDA_DVI_TFP410_POWER_DOWN_GPIO    0

/* Using generic display panel */
static struct tfp410_platform_data omap4_dvi_panel = {
    .i2c_bus_num        = 3,
    .power_down_gpio    = PANDA_DVI_TFP410_POWER_DOWN_GPIO,
};

static struct omap_dss_device omap4_panda_dvi_device = {
    .type           = OMAP_DISPLAY_TYPE_DPI,
    .name           = "dvi",
    .driver_name        = "tfp410",
    .data           = &omap4_dvi_panel,
    .phy.dpi.data_lines = 24,
    .reset_gpio     = PANDA_DVI_TFP410_POWER_DOWN_GPIO,
    .channel        = OMAP_DSS_CHANNEL_LCD2,
};

static struct omap_dss_hdmi_data omap4_panda_hdmi_data = {
    .ct_cp_hpd_gpio = HDMI_GPIO_CT_CP_HPD,
    .ls_oe_gpio = HDMI_GPIO_LS_OE,
    .hpd_gpio = HDMI_GPIO_HPD,
};

static struct omap_dss_device  omap4_panda_hdmi_device = {
    .name = "hdmi",
    .driver_name = "hdmi_panel",
    .type = OMAP_DISPLAY_TYPE_HDMI,
    .channel = OMAP_DSS_CHANNEL_DIGIT,
    .data = &omap4_panda_hdmi_data,
};

static struct omap_dss_device *omap4_panda_dss_devices[] = {
    &omap4_panda_dvi_device,
    &omap4_panda_hdmi_device,
};

static struct omap_dss_board_info omap4_panda_dss_data = {
    .num_devices    = ARRAY_SIZE(omap4_panda_dss_devices),
    .devices    = omap4_panda_dss_devices,
    .default_device = &omap4_panda_dvi_device,
};

static void __init omap4_panda_display_init(void)
{

    omap_display_init(&omap4_panda_dss_data);

    /*
     * OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and
     * later have external pull up on the HDMI I2C lines
     */
    if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2)
        omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP);
    else
        omap_hdmi_init(0);

    omap_mux_init_gpio(HDMI_GPIO_LS_OE, OMAP_PIN_OUTPUT);
    omap_mux_init_gpio(HDMI_GPIO_CT_CP_HPD, OMAP_PIN_OUTPUT);
    omap_mux_init_gpio(HDMI_GPIO_HPD, OMAP_PIN_INPUT_PULLDOWN);
}

static void omap4_panda_init_rev(void)
{
    if (cpu_is_omap443x()) {
        /* PandaBoard 4430 */
        /* ASoC audio configuration */
        panda_abe_audio_data.card_name = "PandaBoard";
        panda_abe_audio_data.has_hsmic = 1;
    } else {
        /* PandaBoard ES */
        /* ASoC audio configuration */
        panda_abe_audio_data.card_name = "PandaBoardES";
    }
}

static void __init omap4_panda_init(void)
{
    int package = OMAP_PACKAGE_CBS;
    int ret;

    if (omap_rev() == OMAP4430_REV_ES1_0)
        package = OMAP_PACKAGE_CBL;
    omap4_mux_init(board_mux, NULL, package);

    omap_panda_wlan_data.irq = gpio_to_irq(GPIO_WIFI_IRQ);
    ret = wl12xx_set_platform_data(&omap_panda_wlan_data);
    if (ret)
        pr_err("error setting wl12xx data: %d\n", ret);

    omap4_panda_init_rev();
    omap4_panda_i2c_init();
    platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));
    platform_device_register(&omap_vwlan_device);
    omap_serial_init();
    omap_sdrc_init(NULL, NULL);
    omap4_twl6030_hsmmc_init(mmc);
    omap4_ehci_init();
    usb_musb_init(&musb_board_data);
    omap4_panda_display_init();
}

MACHINE_START(OMAP4_PANDA, "OMAP4 Panda board")
    /* Maintainer: David Anders - Texas Instruments Inc */
    .atag_offset    = 0x100,
    .smp        = smp_ops(omap4_smp_ops),
    .reserve    = omap_reserve,
    .map_io     = omap4_map_io,
    .init_early = omap4430_init_early,
    .init_irq   = gic_init_irq,
    .handle_irq = gic_handle_irq,
    .init_machine   = omap4_panda_init,
    .init_late  = omap4430_init_late,
    .timer      = &omap4_timer,
    .restart    = omap_prcm_restart,
MACHINE_END