board-da850-evm.c

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/*
 * TI DA850/OMAP-L138 EVM board
 *
 * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
 *
 * Derived from: arch/arm/mach-davinci/board-da830-evm.c
 * Original Copyrights follow:
 *
 * 2007, 2009 (c) MontaVista Software, Inc. This file is licensed under
 * the terms of the GNU General Public License version 2. This program
 * is licensed "as is" without any warranty of any kind, whether express
 * or implied.
 */
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/console.h>
#include <linux/i2c.h>
#include <linux/i2c/at24.h>
#include <linux/i2c/pca953x.h>
#include <linux/input.h>
#include <linux/mfd/tps6507x.h>
#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/tps6507x.h>
#include <linux/input/tps6507x-ts.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
#include <linux/delay.h>
#include <linux/wl12xx.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/system_info.h>

#include <mach/cp_intc.h>
#include <mach/da8xx.h>
#include <linux/platform_data/mtd-davinci.h>
#include <mach/mux.h>
#include <linux/platform_data/mtd-davinci-aemif.h>
#include <linux/platform_data/spi-davinci.h>

#include <media/tvp514x.h>
#include <media/adv7343.h>

#define DA850_EVM_PHY_ID        "davinci_mdio-0:00"
#define DA850_LCD_PWR_PIN       GPIO_TO_PIN(2, 8)
#define DA850_LCD_BL_PIN        GPIO_TO_PIN(2, 15)

#define DA850_MMCSD_CD_PIN      GPIO_TO_PIN(4, 0)
#define DA850_MMCSD_WP_PIN      GPIO_TO_PIN(4, 1)

#define DA850_WLAN_EN           GPIO_TO_PIN(6, 9)
#define DA850_WLAN_IRQ          GPIO_TO_PIN(6, 10)

#define DA850_MII_MDIO_CLKEN_PIN    GPIO_TO_PIN(2, 6)

static struct mtd_partition da850evm_spiflash_part[] = {
    [0] = {
        .name = "UBL",
        .offset = 0,
        .size = SZ_64K,
        .mask_flags = MTD_WRITEABLE,
    },
    [1] = {
        .name = "U-Boot",
        .offset = MTDPART_OFS_APPEND,
        .size = SZ_512K,
        .mask_flags = MTD_WRITEABLE,
    },
    [2] = {
        .name = "U-Boot-Env",
        .offset = MTDPART_OFS_APPEND,
        .size = SZ_64K,
        .mask_flags = MTD_WRITEABLE,
    },
    [3] = {
        .name = "Kernel",
        .offset = MTDPART_OFS_APPEND,
        .size = SZ_2M + SZ_512K,
        .mask_flags = 0,
    },
    [4] = {
        .name = "Filesystem",
        .offset = MTDPART_OFS_APPEND,
        .size = SZ_4M,
        .mask_flags = 0,
    },
    [5] = {
        .name = "MAC-Address",
        .offset = SZ_8M - SZ_64K,
        .size = SZ_64K,
        .mask_flags = MTD_WRITEABLE,
    },
};

static struct flash_platform_data da850evm_spiflash_data = {
    .name       = "m25p80",
    .parts      = da850evm_spiflash_part,
    .nr_parts   = ARRAY_SIZE(da850evm_spiflash_part),
    .type       = "m25p64",
};

static struct davinci_spi_config da850evm_spiflash_cfg = {
    .io_type    = SPI_IO_TYPE_DMA,
    .c2tdelay   = 8,
    .t2cdelay   = 8,
};

static struct spi_board_info da850evm_spi_info[] = {
    {
        .modalias       = "m25p80",
        .platform_data      = &da850evm_spiflash_data,
        .controller_data    = &da850evm_spiflash_cfg,
        .mode           = SPI_MODE_0,
        .max_speed_hz       = 30000000,
        .bus_num        = 1,
        .chip_select        = 0,
    },
};

#ifdef CONFIG_MTD
static void da850_evm_m25p80_notify_add(struct mtd_info *mtd)
{
    char *mac_addr = davinci_soc_info.emac_pdata->mac_addr;
    size_t retlen;

    if (!strcmp(mtd->name, "MAC-Address")) {
        mtd_read(mtd, 0, ETH_ALEN, &retlen, mac_addr);
        if (retlen == ETH_ALEN)
            pr_info("Read MAC addr from SPI Flash: %pM\n",
                mac_addr);
    }
}

static struct mtd_notifier da850evm_spi_notifier = {
    .add    = da850_evm_m25p80_notify_add,
};

static void da850_evm_setup_mac_addr(void)
{
    register_mtd_user(&da850evm_spi_notifier);
}
#else
static void da850_evm_setup_mac_addr(void) { }
#endif

static struct mtd_partition da850_evm_norflash_partition[] = {
    {
        .name           = "bootloaders + env",
        .offset         = 0,
        .size           = SZ_512K,
        .mask_flags     = MTD_WRITEABLE,
    },
    {
        .name           = "kernel",
        .offset         = MTDPART_OFS_APPEND,
        .size           = SZ_2M,
        .mask_flags     = 0,
    },
    {
        .name           = "filesystem",
        .offset         = MTDPART_OFS_APPEND,
        .size           = MTDPART_SIZ_FULL,
        .mask_flags     = 0,
    },
};

static struct physmap_flash_data da850_evm_norflash_data = {
    .width      = 2,
    .parts      = da850_evm_norflash_partition,
    .nr_parts   = ARRAY_SIZE(da850_evm_norflash_partition),
};

static struct resource da850_evm_norflash_resource[] = {
    {
        .start  = DA8XX_AEMIF_CS2_BASE,
        .end    = DA8XX_AEMIF_CS2_BASE + SZ_32M - 1,
        .flags  = IORESOURCE_MEM,
    },
};

static struct platform_device da850_evm_norflash_device = {
    .name       = "physmap-flash",
    .id     = 0,
    .dev        = {
        .platform_data  = &da850_evm_norflash_data,
    },
    .num_resources  = 1,
    .resource   = da850_evm_norflash_resource,
};

static struct davinci_pm_config da850_pm_pdata = {
    .sleepcount = 128,
};

static struct platform_device da850_pm_device = {
    .name           = "pm-davinci",
    .dev = {
        .platform_data  = &da850_pm_pdata,
    },
    .id             = -1,
};

/* DA850/OMAP-L138 EVM includes a 512 MByte large-page NAND flash
 * (128K blocks). It may be used instead of the (default) SPI flash
 * to boot, using TI's tools to install the secondary boot loader
 * (UBL) and U-Boot.
 */
static struct mtd_partition da850_evm_nandflash_partition[] = {
    {
        .name       = "u-boot env",
        .offset     = 0,
        .size       = SZ_128K,
        .mask_flags = MTD_WRITEABLE,
     },
    {
        .name       = "UBL",
        .offset     = MTDPART_OFS_APPEND,
        .size       = SZ_128K,
        .mask_flags = MTD_WRITEABLE,
    },
    {
        .name       = "u-boot",
        .offset     = MTDPART_OFS_APPEND,
        .size       = 4 * SZ_128K,
        .mask_flags = MTD_WRITEABLE,
    },
    {
        .name       = "kernel",
        .offset     = 0x200000,
        .size       = SZ_2M,
        .mask_flags = 0,
    },
    {
        .name       = "filesystem",
        .offset     = MTDPART_OFS_APPEND,
        .size       = MTDPART_SIZ_FULL,
        .mask_flags = 0,
    },
};

static struct davinci_aemif_timing da850_evm_nandflash_timing = {
    .wsetup     = 24,
    .wstrobe    = 21,
    .whold      = 14,
    .rsetup     = 19,
    .rstrobe    = 50,
    .rhold      = 0,
    .ta     = 20,
};

static struct davinci_nand_pdata da850_evm_nandflash_data = {
    .parts      = da850_evm_nandflash_partition,
    .nr_parts   = ARRAY_SIZE(da850_evm_nandflash_partition),
    .ecc_mode   = NAND_ECC_HW,
    .ecc_bits   = 4,
    .bbt_options    = NAND_BBT_USE_FLASH,
    .timing     = &da850_evm_nandflash_timing,
};

static struct resource da850_evm_nandflash_resource[] = {
    {
        .start  = DA8XX_AEMIF_CS3_BASE,
        .end    = DA8XX_AEMIF_CS3_BASE + SZ_512K + 2 * SZ_1K - 1,
        .flags  = IORESOURCE_MEM,
    },
    {
        .start  = DA8XX_AEMIF_CTL_BASE,
        .end    = DA8XX_AEMIF_CTL_BASE + SZ_32K - 1,
        .flags  = IORESOURCE_MEM,
    },
};

static struct platform_device da850_evm_nandflash_device = {
    .name       = "davinci_nand",
    .id     = 1,
    .dev        = {
        .platform_data  = &da850_evm_nandflash_data,
    },
    .num_resources  = ARRAY_SIZE(da850_evm_nandflash_resource),
    .resource   = da850_evm_nandflash_resource,
};

static struct platform_device *da850_evm_devices[] = {
    &da850_evm_nandflash_device,
    &da850_evm_norflash_device,
};

#define DA8XX_AEMIF_CE2CFG_OFFSET   0x10
#define DA8XX_AEMIF_ASIZE_16BIT     0x1

static void __init da850_evm_init_nor(void)
{
    void __iomem *aemif_addr;

    aemif_addr = ioremap(DA8XX_AEMIF_CTL_BASE, SZ_32K);

    /* Configure data bus width of CS2 to 16 bit */
    writel(readl(aemif_addr + DA8XX_AEMIF_CE2CFG_OFFSET) |
        DA8XX_AEMIF_ASIZE_16BIT,
        aemif_addr + DA8XX_AEMIF_CE2CFG_OFFSET);

    iounmap(aemif_addr);
}

static const short da850_evm_nand_pins[] = {
    DA850_EMA_D_0, DA850_EMA_D_1, DA850_EMA_D_2, DA850_EMA_D_3,
    DA850_EMA_D_4, DA850_EMA_D_5, DA850_EMA_D_6, DA850_EMA_D_7,
    DA850_EMA_A_1, DA850_EMA_A_2, DA850_NEMA_CS_3, DA850_NEMA_CS_4,
    DA850_NEMA_WE, DA850_NEMA_OE,
    -1
};

static const short da850_evm_nor_pins[] = {
    DA850_EMA_BA_1, DA850_EMA_CLK, DA850_EMA_WAIT_1, DA850_NEMA_CS_2,
    DA850_NEMA_WE, DA850_NEMA_OE, DA850_EMA_D_0, DA850_EMA_D_1,
    DA850_EMA_D_2, DA850_EMA_D_3, DA850_EMA_D_4, DA850_EMA_D_5,
    DA850_EMA_D_6, DA850_EMA_D_7, DA850_EMA_D_8, DA850_EMA_D_9,
    DA850_EMA_D_10, DA850_EMA_D_11, DA850_EMA_D_12, DA850_EMA_D_13,
    DA850_EMA_D_14, DA850_EMA_D_15, DA850_EMA_A_0, DA850_EMA_A_1,
    DA850_EMA_A_2, DA850_EMA_A_3, DA850_EMA_A_4, DA850_EMA_A_5,
    DA850_EMA_A_6, DA850_EMA_A_7, DA850_EMA_A_8, DA850_EMA_A_9,
    DA850_EMA_A_10, DA850_EMA_A_11, DA850_EMA_A_12, DA850_EMA_A_13,
    DA850_EMA_A_14, DA850_EMA_A_15, DA850_EMA_A_16, DA850_EMA_A_17,
    DA850_EMA_A_18, DA850_EMA_A_19, DA850_EMA_A_20, DA850_EMA_A_21,
    DA850_EMA_A_22, DA850_EMA_A_23,
    -1
};

#if defined(CONFIG_MMC_DAVINCI) || \
    defined(CONFIG_MMC_DAVINCI_MODULE)
#define HAS_MMC 1
#else
#define HAS_MMC 0
#endif

static inline void da850_evm_setup_nor_nand(void)
{
    int ret = 0;

    if (!HAS_MMC) {
        ret = davinci_cfg_reg_list(da850_evm_nand_pins);
        if (ret)
            pr_warning("da850_evm_init: nand mux setup failed: "
                    "%d\n", ret);

        ret = davinci_cfg_reg_list(da850_evm_nor_pins);
        if (ret)
            pr_warning("da850_evm_init: nor mux setup failed: %d\n",
                ret);

        da850_evm_init_nor();

        platform_add_devices(da850_evm_devices,
                    ARRAY_SIZE(da850_evm_devices));
    }
}

#ifdef CONFIG_DA850_UI_RMII
static inline void da850_evm_setup_emac_rmii(int rmii_sel)
{
    struct davinci_soc_info *soc_info = &davinci_soc_info;

    soc_info->emac_pdata->rmii_en = 1;
    gpio_set_value_cansleep(rmii_sel, 0);
}
#else
static inline void da850_evm_setup_emac_rmii(int rmii_sel) { }
#endif


#define DA850_KEYS_DEBOUNCE_MS  10
/*
 * At 200ms polling interval it is possible to miss an
 * event by tapping very lightly on the push button but most
 * pushes do result in an event; longer intervals require the
 * user to hold the button whereas shorter intervals require
 * more CPU time for polling.
 */
#define DA850_GPIO_KEYS_POLL_MS 200

enum da850_evm_ui_exp_pins {
    DA850_EVM_UI_EXP_SEL_C = 5,
    DA850_EVM_UI_EXP_SEL_B,
    DA850_EVM_UI_EXP_SEL_A,
    DA850_EVM_UI_EXP_PB8,
    DA850_EVM_UI_EXP_PB7,
    DA850_EVM_UI_EXP_PB6,
    DA850_EVM_UI_EXP_PB5,
    DA850_EVM_UI_EXP_PB4,
    DA850_EVM_UI_EXP_PB3,
    DA850_EVM_UI_EXP_PB2,
    DA850_EVM_UI_EXP_PB1,
};

static const char const *da850_evm_ui_exp[] = {
    [DA850_EVM_UI_EXP_SEL_C]        = "sel_c",
    [DA850_EVM_UI_EXP_SEL_B]        = "sel_b",
    [DA850_EVM_UI_EXP_SEL_A]        = "sel_a",
    [DA850_EVM_UI_EXP_PB8]          = "pb8",
    [DA850_EVM_UI_EXP_PB7]          = "pb7",
    [DA850_EVM_UI_EXP_PB6]          = "pb6",
    [DA850_EVM_UI_EXP_PB5]          = "pb5",
    [DA850_EVM_UI_EXP_PB4]          = "pb4",
    [DA850_EVM_UI_EXP_PB3]          = "pb3",
    [DA850_EVM_UI_EXP_PB2]          = "pb2",
    [DA850_EVM_UI_EXP_PB1]          = "pb1",
};

#define DA850_N_UI_PB       8

static struct gpio_keys_button da850_evm_ui_keys[] = {
    [0 ... DA850_N_UI_PB - 1] = {
        .type           = EV_KEY,
        .active_low     = 1,
        .wakeup         = 0,
        .debounce_interval  = DA850_KEYS_DEBOUNCE_MS,
        .code           = -1, /* assigned at runtime */
        .gpio           = -1, /* assigned at runtime */
        .desc           = NULL, /* assigned at runtime */
    },
};

static struct gpio_keys_platform_data da850_evm_ui_keys_pdata = {
    .buttons = da850_evm_ui_keys,
    .nbuttons = ARRAY_SIZE(da850_evm_ui_keys),
    .poll_interval = DA850_GPIO_KEYS_POLL_MS,
};

static struct platform_device da850_evm_ui_keys_device = {
    .name = "gpio-keys-polled",
    .id = 0,
    .dev = {
        .platform_data = &da850_evm_ui_keys_pdata
    },
};

static void da850_evm_ui_keys_init(unsigned gpio)
{
    int i;
    struct gpio_keys_button *button;

    for (i = 0; i < DA850_N_UI_PB; i++) {
        button = &da850_evm_ui_keys[i];
        button->code = KEY_F8 - i;
        button->desc = (char *)
                da850_evm_ui_exp[DA850_EVM_UI_EXP_PB8 + i];
        button->gpio = gpio + DA850_EVM_UI_EXP_PB8 + i;
    }
}

#ifdef CONFIG_DA850_UI_SD_VIDEO_PORT
static inline void da850_evm_setup_video_port(int video_sel)
{
    gpio_set_value_cansleep(video_sel, 0);
}
#else
static inline void da850_evm_setup_video_port(int video_sel) { }
#endif

static int da850_evm_ui_expander_setup(struct i2c_client *client, unsigned gpio,
                        unsigned ngpio, void *c)
{
    int sel_a, sel_b, sel_c, ret;

    sel_a = gpio + DA850_EVM_UI_EXP_SEL_A;
    sel_b = gpio + DA850_EVM_UI_EXP_SEL_B;
    sel_c = gpio + DA850_EVM_UI_EXP_SEL_C;

    ret = gpio_request(sel_a, da850_evm_ui_exp[DA850_EVM_UI_EXP_SEL_A]);
    if (ret) {
        pr_warning("Cannot open UI expander pin %d\n", sel_a);
        goto exp_setup_sela_fail;
    }

    ret = gpio_request(sel_b, da850_evm_ui_exp[DA850_EVM_UI_EXP_SEL_B]);
    if (ret) {
        pr_warning("Cannot open UI expander pin %d\n", sel_b);
        goto exp_setup_selb_fail;
    }

    ret = gpio_request(sel_c, da850_evm_ui_exp[DA850_EVM_UI_EXP_SEL_C]);
    if (ret) {
        pr_warning("Cannot open UI expander pin %d\n", sel_c);
        goto exp_setup_selc_fail;
    }

    /* deselect all functionalities */
    gpio_direction_output(sel_a, 1);
    gpio_direction_output(sel_b, 1);
    gpio_direction_output(sel_c, 1);

    da850_evm_ui_keys_init(gpio);
    ret = platform_device_register(&da850_evm_ui_keys_device);
    if (ret) {
        pr_warning("Could not register UI GPIO expander push-buttons");
        goto exp_setup_keys_fail;
    }

    pr_info("DA850/OMAP-L138 EVM UI card detected\n");

    da850_evm_setup_nor_nand();

    da850_evm_setup_emac_rmii(sel_a);

    da850_evm_setup_video_port(sel_c);

    return 0;

exp_setup_keys_fail:
    gpio_free(sel_c);
exp_setup_selc_fail:
    gpio_free(sel_b);
exp_setup_selb_fail:
    gpio_free(sel_a);
exp_setup_sela_fail:
    return ret;
}

static int da850_evm_ui_expander_teardown(struct i2c_client *client,
                    unsigned gpio, unsigned ngpio, void *c)
{
    platform_device_unregister(&da850_evm_ui_keys_device);

    /* deselect all functionalities */
    gpio_set_value_cansleep(gpio + DA850_EVM_UI_EXP_SEL_C, 1);
    gpio_set_value_cansleep(gpio + DA850_EVM_UI_EXP_SEL_B, 1);
    gpio_set_value_cansleep(gpio + DA850_EVM_UI_EXP_SEL_A, 1);

    gpio_free(gpio + DA850_EVM_UI_EXP_SEL_C);
    gpio_free(gpio + DA850_EVM_UI_EXP_SEL_B);
    gpio_free(gpio + DA850_EVM_UI_EXP_SEL_A);

    return 0;
}

/* assign the baseboard expander's GPIOs after the UI board's */
#define DA850_UI_EXPANDER_N_GPIOS ARRAY_SIZE(da850_evm_ui_exp)
#define DA850_BB_EXPANDER_GPIO_BASE (DAVINCI_N_GPIO + DA850_UI_EXPANDER_N_GPIOS)

enum da850_evm_bb_exp_pins {
    DA850_EVM_BB_EXP_DEEP_SLEEP_EN = 0,
    DA850_EVM_BB_EXP_SW_RST,
    DA850_EVM_BB_EXP_TP_23,
    DA850_EVM_BB_EXP_TP_22,
    DA850_EVM_BB_EXP_TP_21,
    DA850_EVM_BB_EXP_USER_PB1,
    DA850_EVM_BB_EXP_USER_LED2,
    DA850_EVM_BB_EXP_USER_LED1,
    DA850_EVM_BB_EXP_USER_SW1,
    DA850_EVM_BB_EXP_USER_SW2,
    DA850_EVM_BB_EXP_USER_SW3,
    DA850_EVM_BB_EXP_USER_SW4,
    DA850_EVM_BB_EXP_USER_SW5,
    DA850_EVM_BB_EXP_USER_SW6,
    DA850_EVM_BB_EXP_USER_SW7,
    DA850_EVM_BB_EXP_USER_SW8
};

static const char const *da850_evm_bb_exp[] = {
    [DA850_EVM_BB_EXP_DEEP_SLEEP_EN]    = "deep_sleep_en",
    [DA850_EVM_BB_EXP_SW_RST]       = "sw_rst",
    [DA850_EVM_BB_EXP_TP_23]        = "tp_23",
    [DA850_EVM_BB_EXP_TP_22]        = "tp_22",
    [DA850_EVM_BB_EXP_TP_21]        = "tp_21",
    [DA850_EVM_BB_EXP_USER_PB1]     = "user_pb1",
    [DA850_EVM_BB_EXP_USER_LED2]        = "user_led2",
    [DA850_EVM_BB_EXP_USER_LED1]        = "user_led1",
    [DA850_EVM_BB_EXP_USER_SW1]     = "user_sw1",
    [DA850_EVM_BB_EXP_USER_SW2]     = "user_sw2",
    [DA850_EVM_BB_EXP_USER_SW3]     = "user_sw3",
    [DA850_EVM_BB_EXP_USER_SW4]     = "user_sw4",
    [DA850_EVM_BB_EXP_USER_SW5]     = "user_sw5",
    [DA850_EVM_BB_EXP_USER_SW6]     = "user_sw6",
    [DA850_EVM_BB_EXP_USER_SW7]     = "user_sw7",
    [DA850_EVM_BB_EXP_USER_SW8]     = "user_sw8",
};

#define DA850_N_BB_USER_SW  8

static struct gpio_keys_button da850_evm_bb_keys[] = {
    [0] = {
        .type           = EV_KEY,
        .active_low     = 1,
        .wakeup         = 0,
        .debounce_interval  = DA850_KEYS_DEBOUNCE_MS,
        .code           = KEY_PROG1,
        .desc           = NULL, /* assigned at runtime */
        .gpio           = -1, /* assigned at runtime */
    },
    [1 ... DA850_N_BB_USER_SW] = {
        .type           = EV_SW,
        .active_low     = 1,
        .wakeup         = 0,
        .debounce_interval  = DA850_KEYS_DEBOUNCE_MS,
        .code           = -1, /* assigned at runtime */
        .desc           = NULL, /* assigned at runtime */
        .gpio           = -1, /* assigned at runtime */
    },
};

static struct gpio_keys_platform_data da850_evm_bb_keys_pdata = {
    .buttons = da850_evm_bb_keys,
    .nbuttons = ARRAY_SIZE(da850_evm_bb_keys),
    .poll_interval = DA850_GPIO_KEYS_POLL_MS,
};

static struct platform_device da850_evm_bb_keys_device = {
    .name = "gpio-keys-polled",
    .id = 1,
    .dev = {
        .platform_data = &da850_evm_bb_keys_pdata
    },
};

static void da850_evm_bb_keys_init(unsigned gpio)
{
    int i;
    struct gpio_keys_button *button;

    button = &da850_evm_bb_keys[0];
    button->desc = (char *)
        da850_evm_bb_exp[DA850_EVM_BB_EXP_USER_PB1];
    button->gpio = gpio + DA850_EVM_BB_EXP_USER_PB1;

    for (i = 0; i < DA850_N_BB_USER_SW; i++) {
        button = &da850_evm_bb_keys[i + 1];
        button->code = SW_LID + i;
        button->desc = (char *)
                da850_evm_bb_exp[DA850_EVM_BB_EXP_USER_SW1 + i];
        button->gpio = gpio + DA850_EVM_BB_EXP_USER_SW1 + i;
    }
}

#define DA850_N_BB_USER_LED 2

static struct gpio_led da850_evm_bb_leds[] = {
    [0 ... DA850_N_BB_USER_LED - 1] = {
        .active_low = 1,
        .gpio = -1, /* assigned at runtime */
        .name = NULL, /* assigned at runtime */
    },
};

static struct gpio_led_platform_data da850_evm_bb_leds_pdata = {
    .leds = da850_evm_bb_leds,
    .num_leds = ARRAY_SIZE(da850_evm_bb_leds),
};

static struct platform_device da850_evm_bb_leds_device = {
    .name       = "leds-gpio",
    .id     = -1,
    .dev = {
        .platform_data = &da850_evm_bb_leds_pdata
    }
};

static void da850_evm_bb_leds_init(unsigned gpio)
{
    int i;
    struct gpio_led *led;

    for (i = 0; i < DA850_N_BB_USER_LED; i++) {
        led = &da850_evm_bb_leds[i];

        led->gpio = gpio + DA850_EVM_BB_EXP_USER_LED2 + i;
        led->name =
            da850_evm_bb_exp[DA850_EVM_BB_EXP_USER_LED2 + i];
    }
}

static int da850_evm_bb_expander_setup(struct i2c_client *client,
                        unsigned gpio, unsigned ngpio,
                        void *c)
{
    int ret;

    /*
     * Register the switches and pushbutton on the baseboard as a gpio-keys
     * device.
     */
    da850_evm_bb_keys_init(gpio);
    ret = platform_device_register(&da850_evm_bb_keys_device);
    if (ret) {
        pr_warning("Could not register baseboard GPIO expander keys");
        goto io_exp_setup_sw_fail;
    }

    da850_evm_bb_leds_init(gpio);
    ret = platform_device_register(&da850_evm_bb_leds_device);
    if (ret) {
        pr_warning("Could not register baseboard GPIO expander LEDS");
        goto io_exp_setup_leds_fail;
    }

    return 0;

io_exp_setup_leds_fail:
    platform_device_unregister(&da850_evm_bb_keys_device);
io_exp_setup_sw_fail:
    return ret;
}

static int da850_evm_bb_expander_teardown(struct i2c_client *client,
                    unsigned gpio, unsigned ngpio, void *c)
{
    platform_device_unregister(&da850_evm_bb_leds_device);
    platform_device_unregister(&da850_evm_bb_keys_device);

    return 0;
}

static struct pca953x_platform_data da850_evm_ui_expander_info = {
    .gpio_base  = DAVINCI_N_GPIO,
    .setup      = da850_evm_ui_expander_setup,
    .teardown   = da850_evm_ui_expander_teardown,
    .names      = da850_evm_ui_exp,
};

static struct pca953x_platform_data da850_evm_bb_expander_info = {
    .gpio_base  = DA850_BB_EXPANDER_GPIO_BASE,
    .setup      = da850_evm_bb_expander_setup,
    .teardown   = da850_evm_bb_expander_teardown,
    .names      = da850_evm_bb_exp,
};

static struct i2c_board_info __initdata da850_evm_i2c_devices[] = {
    {
        I2C_BOARD_INFO("tlv320aic3x", 0x18),
    },
    {
        I2C_BOARD_INFO("tca6416", 0x20),
        .platform_data = &da850_evm_ui_expander_info,
    },
    {
        I2C_BOARD_INFO("tca6416", 0x21),
        .platform_data = &da850_evm_bb_expander_info,
    },
};

static struct davinci_i2c_platform_data da850_evm_i2c_0_pdata = {
    .bus_freq   = 100,  /* kHz */
    .bus_delay  = 0,    /* usec */
};

static struct davinci_uart_config da850_evm_uart_config __initdata = {
    .enabled_uarts = 0x7,
};

/* davinci da850 evm audio machine driver */
static u8 da850_iis_serializer_direction[] = {
    INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,
    INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,
    INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,  TX_MODE,
    RX_MODE,    INACTIVE_MODE,  INACTIVE_MODE,  INACTIVE_MODE,
};

static struct snd_platform_data da850_evm_snd_data = {
    .tx_dma_offset  = 0x2000,
    .rx_dma_offset  = 0x2000,
    .op_mode    = DAVINCI_MCASP_IIS_MODE,
    .num_serializer = ARRAY_SIZE(da850_iis_serializer_direction),
    .tdm_slots  = 2,
    .serial_dir = da850_iis_serializer_direction,
    .asp_chan_q = EVENTQ_0,
    .version    = MCASP_VERSION_2,
    .txnumevt   = 1,
    .rxnumevt   = 1,
};

static const short da850_evm_mcasp_pins[] __initconst = {
    DA850_AHCLKX, DA850_ACLKX, DA850_AFSX,
    DA850_AHCLKR, DA850_ACLKR, DA850_AFSR, DA850_AMUTE,
    DA850_AXR_11, DA850_AXR_12,
    -1
};

static int da850_evm_mmc_get_ro(int index)
{
    return gpio_get_value(DA850_MMCSD_WP_PIN);
}

static int da850_evm_mmc_get_cd(int index)
{
    return !gpio_get_value(DA850_MMCSD_CD_PIN);
}

static struct davinci_mmc_config da850_mmc_config = {
    .get_ro     = da850_evm_mmc_get_ro,
    .get_cd     = da850_evm_mmc_get_cd,
    .wires      = 4,
    .max_freq   = 50000000,
    .caps       = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
    .version    = MMC_CTLR_VERSION_2,
};

static const short da850_evm_mmcsd0_pins[] __initconst = {
    DA850_MMCSD0_DAT_0, DA850_MMCSD0_DAT_1, DA850_MMCSD0_DAT_2,
    DA850_MMCSD0_DAT_3, DA850_MMCSD0_CLK, DA850_MMCSD0_CMD,
    DA850_GPIO4_0, DA850_GPIO4_1,
    -1
};

static void da850_panel_power_ctrl(int val)
{
    /* lcd backlight */
    gpio_set_value(DA850_LCD_BL_PIN, val);

    /* lcd power */
    gpio_set_value(DA850_LCD_PWR_PIN, val);
}

static int da850_lcd_hw_init(void)
{
    int status;

    status = gpio_request(DA850_LCD_BL_PIN, "lcd bl\n");
    if (status < 0)
        return status;

    status = gpio_request(DA850_LCD_PWR_PIN, "lcd pwr\n");
    if (status < 0) {
        gpio_free(DA850_LCD_BL_PIN);
        return status;
    }

    gpio_direction_output(DA850_LCD_BL_PIN, 0);
    gpio_direction_output(DA850_LCD_PWR_PIN, 0);

    /* Switch off panel power and backlight */
    da850_panel_power_ctrl(0);

    /* Switch on panel power and backlight */
    da850_panel_power_ctrl(1);

    return 0;
}

/* TPS65070 voltage regulator support */

/* 3.3V */
static struct regulator_consumer_supply tps65070_dcdc1_consumers[] = {
    {
        .supply = "usb0_vdda33",
    },
    {
        .supply = "usb1_vdda33",
    },
};

/* 3.3V or 1.8V */
static struct regulator_consumer_supply tps65070_dcdc2_consumers[] = {
    {
        .supply = "dvdd3318_a",
    },
    {
        .supply = "dvdd3318_b",
    },
    {
        .supply = "dvdd3318_c",
    },
};

/* 1.2V */
static struct regulator_consumer_supply tps65070_dcdc3_consumers[] = {
    {
        .supply = "cvdd",
    },
};

/* 1.8V LDO */
static struct regulator_consumer_supply tps65070_ldo1_consumers[] = {
    {
        .supply = "sata_vddr",
    },
    {
        .supply = "usb0_vdda18",
    },
    {
        .supply = "usb1_vdda18",
    },
    {
        .supply = "ddr_dvdd18",
    },
};

/* 1.2V LDO */
static struct regulator_consumer_supply tps65070_ldo2_consumers[] = {
    {
        .supply = "sata_vdd",
    },
    {
        .supply = "pll0_vdda",
    },
    {
        .supply = "pll1_vdda",
    },
    {
        .supply = "usbs_cvdd",
    },
    {
        .supply = "vddarnwa1",
    },
};

/* We take advantage of the fact that both defdcdc{2,3} are tied high */
static struct tps6507x_reg_platform_data tps6507x_platform_data = {
    .defdcdc_default = true,
};

static struct regulator_init_data tps65070_regulator_data[] = {
    /* dcdc1 */
    {
        .constraints = {
            .min_uV = 3150000,
            .max_uV = 3450000,
            .valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
                REGULATOR_CHANGE_STATUS),
            .boot_on = 1,
        },
        .num_consumer_supplies = ARRAY_SIZE(tps65070_dcdc1_consumers),
        .consumer_supplies = tps65070_dcdc1_consumers,
    },

    /* dcdc2 */
    {
        .constraints = {
            .min_uV = 1710000,
            .max_uV = 3450000,
            .valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
                REGULATOR_CHANGE_STATUS),
            .boot_on = 1,
        },
        .num_consumer_supplies = ARRAY_SIZE(tps65070_dcdc2_consumers),
        .consumer_supplies = tps65070_dcdc2_consumers,
        .driver_data = &tps6507x_platform_data,
    },

    /* dcdc3 */
    {
        .constraints = {
            .min_uV = 950000,
            .max_uV = 1350000,
            .valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
                REGULATOR_CHANGE_STATUS),
            .boot_on = 1,
        },
        .num_consumer_supplies = ARRAY_SIZE(tps65070_dcdc3_consumers),
        .consumer_supplies = tps65070_dcdc3_consumers,
        .driver_data = &tps6507x_platform_data,
    },

    /* ldo1 */
    {
        .constraints = {
            .min_uV = 1710000,
            .max_uV = 1890000,
            .valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
                REGULATOR_CHANGE_STATUS),
            .boot_on = 1,
        },
        .num_consumer_supplies = ARRAY_SIZE(tps65070_ldo1_consumers),
        .consumer_supplies = tps65070_ldo1_consumers,
    },

    /* ldo2 */
    {
        .constraints = {
            .min_uV = 1140000,
            .max_uV = 1320000,
            .valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE |
                REGULATOR_CHANGE_STATUS),
            .boot_on = 1,
        },
        .num_consumer_supplies = ARRAY_SIZE(tps65070_ldo2_consumers),
        .consumer_supplies = tps65070_ldo2_consumers,
    },
};

static struct touchscreen_init_data tps6507x_touchscreen_data = {
    .poll_period =  30, /* ms between touch samples */
    .min_pressure = 0x30,   /* minimum pressure to trigger touch */
    .vref = 0,      /* turn off vref when not using A/D */
    .vendor = 0,        /* /sys/class/input/input?/id/vendor */
    .product = 65070,   /* /sys/class/input/input?/id/product */
    .version = 0x100,   /* /sys/class/input/input?/id/version */
};

static struct tps6507x_board tps_board = {
    .tps6507x_pmic_init_data = &tps65070_regulator_data[0],
    .tps6507x_ts_init_data = &tps6507x_touchscreen_data,
};

static struct i2c_board_info __initdata da850_evm_tps65070_info[] = {
    {
        I2C_BOARD_INFO("tps6507x", 0x48),
        .platform_data = &tps_board,
    },
};

static int __init pmic_tps65070_init(void)
{
    return i2c_register_board_info(1, da850_evm_tps65070_info,
                    ARRAY_SIZE(da850_evm_tps65070_info));
}

static const short da850_evm_lcdc_pins[] = {
    DA850_GPIO2_8, DA850_GPIO2_15,
    -1
};

static const short da850_evm_mii_pins[] = {
    DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
    DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
    DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3,
    DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, DA850_MDIO_CLK,
    DA850_MDIO_D,
    -1
};

static const short da850_evm_rmii_pins[] = {
    DA850_RMII_TXD_0, DA850_RMII_TXD_1, DA850_RMII_TXEN,
    DA850_RMII_CRS_DV, DA850_RMII_RXD_0, DA850_RMII_RXD_1,
    DA850_RMII_RXER, DA850_RMII_MHZ_50_CLK, DA850_MDIO_CLK,
    DA850_MDIO_D,
    -1
};

static int __init da850_evm_config_emac(void)
{
    void __iomem *cfg_chip3_base;
    int ret;
    u32 val;
    struct davinci_soc_info *soc_info = &davinci_soc_info;
    u8 rmii_en = soc_info->emac_pdata->rmii_en;

    if (!machine_is_davinci_da850_evm())
        return 0;

    cfg_chip3_base = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG);

    val = __raw_readl(cfg_chip3_base);

    if (rmii_en) {
        val |= BIT(8);
        ret = davinci_cfg_reg_list(da850_evm_rmii_pins);
        pr_info("EMAC: RMII PHY configured, MII PHY will not be"
                            " functional\n");
    } else {
        val &= ~BIT(8);
        ret = davinci_cfg_reg_list(da850_evm_mii_pins);
        pr_info("EMAC: MII PHY configured, RMII PHY will not be"
                            " functional\n");
    }

    if (ret)
        pr_warning("da850_evm_init: cpgmac/rmii mux setup failed: %d\n",
                ret);

    /* configure the CFGCHIP3 register for RMII or MII */
    __raw_writel(val, cfg_chip3_base);

    ret = davinci_cfg_reg(DA850_GPIO2_6);
    if (ret)
        pr_warning("da850_evm_init:GPIO(2,6) mux setup "
                            "failed\n");

    ret = gpio_request(DA850_MII_MDIO_CLKEN_PIN, "mdio_clk_en");
    if (ret) {
        pr_warning("Cannot open GPIO %d\n",
                    DA850_MII_MDIO_CLKEN_PIN);
        return ret;
    }

    /* Enable/Disable MII MDIO clock */
    gpio_direction_output(DA850_MII_MDIO_CLKEN_PIN, rmii_en);

    soc_info->emac_pdata->phy_id = DA850_EVM_PHY_ID;

    ret = da8xx_register_emac();
    if (ret)
        pr_warning("da850_evm_init: emac registration failed: %d\n",
                ret);

    return 0;
}
device_initcall(da850_evm_config_emac);

/*
 * The following EDMA channels/slots are not being used by drivers (for
 * example: Timer, GPIO, UART events etc) on da850/omap-l138 EVM, hence
 * they are being reserved for codecs on the DSP side.
 */
static const s16 da850_dma0_rsv_chans[][2] = {
    /* (offset, number) */
    { 8,  6},
    {24,  4},
    {30,  2},
    {-1, -1}
};

static const s16 da850_dma0_rsv_slots[][2] = {
    /* (offset, number) */
    { 8,  6},
    {24,  4},
    {30, 50},
    {-1, -1}
};

static const s16 da850_dma1_rsv_chans[][2] = {
    /* (offset, number) */
    { 0, 28},
    {30,  2},
    {-1, -1}
};

static const s16 da850_dma1_rsv_slots[][2] = {
    /* (offset, number) */
    { 0, 28},
    {30, 90},
    {-1, -1}
};

static struct edma_rsv_info da850_edma_cc0_rsv = {
    .rsv_chans  = da850_dma0_rsv_chans,
    .rsv_slots  = da850_dma0_rsv_slots,
};

static struct edma_rsv_info da850_edma_cc1_rsv = {
    .rsv_chans  = da850_dma1_rsv_chans,
    .rsv_slots  = da850_dma1_rsv_slots,
};

static struct edma_rsv_info *da850_edma_rsv[2] = {
    &da850_edma_cc0_rsv,
    &da850_edma_cc1_rsv,
};

#ifdef CONFIG_CPU_FREQ
static __init int da850_evm_init_cpufreq(void)
{
    switch (system_rev & 0xF) {
    case 3:
        da850_max_speed = 456000;
        break;
    case 2:
        da850_max_speed = 408000;
        break;
    case 1:
        da850_max_speed = 372000;
        break;
    }

    return da850_register_cpufreq("pll0_sysclk3");
}
#else
static __init int da850_evm_init_cpufreq(void) { return 0; }
#endif

#if defined(CONFIG_DA850_UI_SD_VIDEO_PORT)

#define TVP5147_CH0     "tvp514x-0"
#define TVP5147_CH1     "tvp514x-1"

/* VPIF capture configuration */
static struct tvp514x_platform_data tvp5146_pdata = {
        .clk_polarity = 0,
        .hs_polarity  = 1,
        .vs_polarity  = 1,
};

#define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)

static const struct vpif_input da850_ch0_inputs[] = {
    {
        .input = {
            .index = 0,
            .name  = "Composite",
            .type  = V4L2_INPUT_TYPE_CAMERA,
            .capabilities = V4L2_IN_CAP_STD,
            .std   = TVP514X_STD_ALL,
        },
        .input_route = INPUT_CVBS_VI2B,
        .output_route = OUTPUT_10BIT_422_EMBEDDED_SYNC,
        .subdev_name = TVP5147_CH0,
    },
};

static const struct vpif_input da850_ch1_inputs[] = {
    {
        .input = {
            .index = 0,
            .name  = "S-Video",
            .type  = V4L2_INPUT_TYPE_CAMERA,
            .capabilities = V4L2_IN_CAP_STD,
            .std   = TVP514X_STD_ALL,
        },
        .input_route = INPUT_SVIDEO_VI2C_VI1C,
        .output_route = OUTPUT_10BIT_422_EMBEDDED_SYNC,
        .subdev_name = TVP5147_CH1,
    },
};

static struct vpif_subdev_info da850_vpif_capture_sdev_info[] = {
    {
        .name = TVP5147_CH0,
        .board_info = {
            I2C_BOARD_INFO("tvp5146", 0x5d),
            .platform_data = &tvp5146_pdata,
        },
    },
    {
        .name = TVP5147_CH1,
        .board_info = {
            I2C_BOARD_INFO("tvp5146", 0x5c),
            .platform_data = &tvp5146_pdata,
        },
    },
};

static struct vpif_capture_config da850_vpif_capture_config = {
    .subdev_info = da850_vpif_capture_sdev_info,
    .subdev_count = ARRAY_SIZE(da850_vpif_capture_sdev_info),
    .chan_config[0] = {
        .inputs = da850_ch0_inputs,
        .input_count = ARRAY_SIZE(da850_ch0_inputs),
        .vpif_if = {
            .if_type = VPIF_IF_BT656,
            .hd_pol  = 1,
            .vd_pol  = 1,
            .fid_pol = 0,
        },
    },
    .chan_config[1] = {
        .inputs = da850_ch1_inputs,
        .input_count = ARRAY_SIZE(da850_ch1_inputs),
        .vpif_if = {
            .if_type = VPIF_IF_BT656,
            .hd_pol  = 1,
            .vd_pol  = 1,
            .fid_pol = 0,
        },
    },
    .card_name = "DA850/OMAP-L138 Video Capture",
};

/* VPIF display configuration */
static struct vpif_subdev_info da850_vpif_subdev[] = {
    {
        .name = "adv7343",
        .board_info = {
            I2C_BOARD_INFO("adv7343", 0x2a),
        },
    },
};

static const struct vpif_output da850_ch0_outputs[] = {
    {
        .output = {
            .index = 0,
            .name = "Composite",
            .type = V4L2_OUTPUT_TYPE_ANALOG,
            .capabilities = V4L2_OUT_CAP_STD,
            .std = V4L2_STD_ALL,
        },
        .subdev_name = "adv7343",
        .output_route = ADV7343_COMPOSITE_ID,
    },
    {
        .output = {
            .index = 1,
            .name = "S-Video",
            .type = V4L2_OUTPUT_TYPE_ANALOG,
            .capabilities = V4L2_OUT_CAP_STD,
            .std = V4L2_STD_ALL,
        },
        .subdev_name = "adv7343",
        .output_route = ADV7343_SVIDEO_ID,
    },
};

static struct vpif_display_config da850_vpif_display_config = {
    .subdevinfo   = da850_vpif_subdev,
    .subdev_count = ARRAY_SIZE(da850_vpif_subdev),
    .chan_config[0] = {
        .outputs = da850_ch0_outputs,
        .output_count = ARRAY_SIZE(da850_ch0_outputs),
    },
    .card_name    = "DA850/OMAP-L138 Video Display",
};

static __init void da850_vpif_init(void)
{
    int ret;

    ret = da850_register_vpif();
    if (ret)
        pr_warn("da850_evm_init: VPIF setup failed: %d\n", ret);

    ret = davinci_cfg_reg_list(da850_vpif_capture_pins);
    if (ret)
        pr_warn("da850_evm_init: VPIF capture mux setup failed: %d\n",
            ret);

    ret = da850_register_vpif_capture(&da850_vpif_capture_config);
    if (ret)
        pr_warn("da850_evm_init: VPIF capture setup failed: %d\n", ret);

    ret = davinci_cfg_reg_list(da850_vpif_display_pins);
    if (ret)
        pr_warn("da850_evm_init: VPIF display mux setup failed: %d\n",
            ret);

    ret = da850_register_vpif_display(&da850_vpif_display_config);
    if (ret)
        pr_warn("da850_evm_init: VPIF display setup failed: %d\n", ret);
}

#else
static __init void da850_vpif_init(void) {}
#endif

#ifdef CONFIG_DA850_WL12XX

static void wl12xx_set_power(int index, bool power_on)
{
    static bool power_state;

    pr_debug("Powering %s wl12xx", power_on ? "on" : "off");

    if (power_on == power_state)
        return;
    power_state = power_on;

    if (power_on) {
        /* Power up sequence required for wl127x devices */
        gpio_set_value(DA850_WLAN_EN, 1);
        usleep_range(15000, 15000);
        gpio_set_value(DA850_WLAN_EN, 0);
        usleep_range(1000, 1000);
        gpio_set_value(DA850_WLAN_EN, 1);
        msleep(70);
    } else {
        gpio_set_value(DA850_WLAN_EN, 0);
    }
}

static struct davinci_mmc_config da850_wl12xx_mmc_config = {
    .set_power  = wl12xx_set_power,
    .wires      = 4,
    .max_freq   = 25000000,
    .caps       = MMC_CAP_4_BIT_DATA | MMC_CAP_NONREMOVABLE |
              MMC_CAP_POWER_OFF_CARD,
    .version    = MMC_CTLR_VERSION_2,
};

static const short da850_wl12xx_pins[] __initconst = {
    DA850_MMCSD1_DAT_0, DA850_MMCSD1_DAT_1, DA850_MMCSD1_DAT_2,
    DA850_MMCSD1_DAT_3, DA850_MMCSD1_CLK, DA850_MMCSD1_CMD,
    DA850_GPIO6_9, DA850_GPIO6_10,
    -1
};

static struct wl12xx_platform_data da850_wl12xx_wlan_data __initdata = {
    .irq            = -1,
    .board_ref_clock    = WL12XX_REFCLOCK_38,
    .platform_quirks    = WL12XX_PLATFORM_QUIRK_EDGE_IRQ,
};

static __init int da850_wl12xx_init(void)
{
    int ret;

    ret = davinci_cfg_reg_list(da850_wl12xx_pins);
    if (ret) {
        pr_err("wl12xx/mmc mux setup failed: %d\n", ret);
        goto exit;
    }

    ret = da850_register_mmcsd1(&da850_wl12xx_mmc_config);
    if (ret) {
        pr_err("wl12xx/mmc registration failed: %d\n", ret);
        goto exit;
    }

    ret = gpio_request_one(DA850_WLAN_EN, GPIOF_OUT_INIT_LOW, "wl12xx_en");
    if (ret) {
        pr_err("Could not request wl12xx enable gpio: %d\n", ret);
        goto exit;
    }

    ret = gpio_request_one(DA850_WLAN_IRQ, GPIOF_IN, "wl12xx_irq");
    if (ret) {
        pr_err("Could not request wl12xx irq gpio: %d\n", ret);
        goto free_wlan_en;
    }

    da850_wl12xx_wlan_data.irq = gpio_to_irq(DA850_WLAN_IRQ);

    ret = wl12xx_set_platform_data(&da850_wl12xx_wlan_data);
    if (ret) {
        pr_err("Could not set wl12xx data: %d\n", ret);
        goto free_wlan_irq;
    }

    return 0;

free_wlan_irq:
    gpio_free(DA850_WLAN_IRQ);

free_wlan_en:
    gpio_free(DA850_WLAN_EN);

exit:
    return ret;
}

#else /* CONFIG_DA850_WL12XX */

static __init int da850_wl12xx_init(void)
{
    return 0;
}

#endif /* CONFIG_DA850_WL12XX */

#define DA850EVM_SATA_REFCLKPN_RATE (100 * 1000 * 1000)

static __init void da850_evm_init(void)
{
    int ret;

    ret = pmic_tps65070_init();
    if (ret)
        pr_warning("da850_evm_init: TPS65070 PMIC init failed: %d\n",
                ret);

    ret = da850_register_edma(da850_edma_rsv);
    if (ret)
        pr_warning("da850_evm_init: edma registration failed: %d\n",
                ret);

    ret = davinci_cfg_reg_list(da850_i2c0_pins);
    if (ret)
        pr_warning("da850_evm_init: i2c0 mux setup failed: %d\n",
                ret);

    ret = da8xx_register_i2c(0, &da850_evm_i2c_0_pdata);
    if (ret)
        pr_warning("da850_evm_init: i2c0 registration failed: %d\n",
                ret);


    ret = da8xx_register_watchdog();
    if (ret)
        pr_warning("da830_evm_init: watchdog registration failed: %d\n",
                ret);

    if (HAS_MMC) {
        ret = davinci_cfg_reg_list(da850_evm_mmcsd0_pins);
        if (ret)
            pr_warning("da850_evm_init: mmcsd0 mux setup failed:"
                    " %d\n", ret);

        ret = gpio_request(DA850_MMCSD_CD_PIN, "MMC CD\n");
        if (ret)
            pr_warning("da850_evm_init: can not open GPIO %d\n",
                    DA850_MMCSD_CD_PIN);
        gpio_direction_input(DA850_MMCSD_CD_PIN);

        ret = gpio_request(DA850_MMCSD_WP_PIN, "MMC WP\n");
        if (ret)
            pr_warning("da850_evm_init: can not open GPIO %d\n",
                    DA850_MMCSD_WP_PIN);
        gpio_direction_input(DA850_MMCSD_WP_PIN);

        ret = da8xx_register_mmcsd0(&da850_mmc_config);
        if (ret)
            pr_warning("da850_evm_init: mmcsd0 registration failed:"
                    " %d\n", ret);

        ret = da850_wl12xx_init();
        if (ret)
            pr_warning("da850_evm_init: wl12xx initialization"
                   " failed: %d\n", ret);
    }

    davinci_serial_init(&da850_evm_uart_config);

    i2c_register_board_info(1, da850_evm_i2c_devices,
            ARRAY_SIZE(da850_evm_i2c_devices));

    /*
     * shut down uart 0 and 1; they are not used on the board and
     * accessing them causes endless "too much work in irq53" messages
     * with arago fs
     */
    __raw_writel(0, IO_ADDRESS(DA8XX_UART1_BASE) + 0x30);
    __raw_writel(0, IO_ADDRESS(DA8XX_UART0_BASE) + 0x30);

    ret = davinci_cfg_reg_list(da850_evm_mcasp_pins);
    if (ret)
        pr_warning("da850_evm_init: mcasp mux setup failed: %d\n",
                ret);

    da8xx_register_mcasp(0, &da850_evm_snd_data);

    ret = davinci_cfg_reg_list(da850_lcdcntl_pins);
    if (ret)
        pr_warning("da850_evm_init: lcdcntl mux setup failed: %d\n",
                ret);

    /* Handle board specific muxing for LCD here */
    ret = davinci_cfg_reg_list(da850_evm_lcdc_pins);
    if (ret)
        pr_warning("da850_evm_init: evm specific lcd mux setup "
                "failed: %d\n", ret);

    ret = da850_lcd_hw_init();
    if (ret)
        pr_warning("da850_evm_init: lcd initialization failed: %d\n",
                ret);

    sharp_lk043t1dg01_pdata.panel_power_ctrl = da850_panel_power_ctrl,
    ret = da8xx_register_lcdc(&sharp_lk043t1dg01_pdata);
    if (ret)
        pr_warning("da850_evm_init: lcdc registration failed: %d\n",
                ret);

    ret = da8xx_register_rtc();
    if (ret)
        pr_warning("da850_evm_init: rtc setup failed: %d\n", ret);

    ret = da850_evm_init_cpufreq();
    if (ret)
        pr_warning("da850_evm_init: cpufreq registration failed: %d\n",
                ret);

    ret = da8xx_register_cpuidle();
    if (ret)
        pr_warning("da850_evm_init: cpuidle registration failed: %d\n",
                ret);

    ret = da850_register_pm(&da850_pm_device);
    if (ret)
        pr_warning("da850_evm_init: suspend registration failed: %d\n",
                ret);

    da850_vpif_init();

    ret = da8xx_register_spi(1, da850evm_spi_info,
                 ARRAY_SIZE(da850evm_spi_info));
    if (ret)
        pr_warning("da850_evm_init: spi 1 registration failed: %d\n",
                ret);

    ret = da850_register_sata(DA850EVM_SATA_REFCLKPN_RATE);
    if (ret)
        pr_warning("da850_evm_init: sata registration failed: %d\n",
                ret);

    da850_evm_setup_mac_addr();
}

#ifdef CONFIG_SERIAL_8250_CONSOLE
static int __init da850_evm_console_init(void)
{
    if (!machine_is_davinci_da850_evm())
        return 0;

    return add_preferred_console("ttyS", 2, "115200");
}
console_initcall(da850_evm_console_init);
#endif

static void __init da850_evm_map_io(void)
{
    da850_init();
}

MACHINE_START(DAVINCI_DA850_EVM, "DaVinci DA850/OMAP-L138/AM18x EVM")
    .atag_offset    = 0x100,
    .map_io     = da850_evm_map_io,
    .init_irq   = cp_intc_init,
    .timer      = &davinci_timer,
    .init_machine   = da850_evm_init,
    .init_late  = davinci_init_late,
    .dma_zone_size  = SZ_128M,
    .restart    = da8xx_restart,
MACHINE_END