board-rm680.c

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/*
 * Board support file for Nokia RM-680/696.
 *
 * Copyright (C) 2010 Nokia
 *
 * 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/io.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/i2c/twl.h>
#include <linux/platform_device.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/consumer.h>
#include <linux/platform_data/mtd-onenand-omap2.h>

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

#include <plat/i2c.h>
#include <plat/mmc.h>
#include <plat/usb.h>
#include <plat/gpmc.h>
#include "common.h"
#include <plat/serial.h>

#include "mux.h"
#include "hsmmc.h"
#include "sdram-nokia.h"
#include "common-board-devices.h"

static struct regulator_consumer_supply rm680_vemmc_consumers[] = {
    REGULATOR_SUPPLY("vmmc", "omap_hsmmc.1"),
};

/* Fixed regulator for internal eMMC */
static struct regulator_init_data rm680_vemmc = {
    .constraints =  {
        .name           = "rm680_vemmc",
        .valid_modes_mask   = REGULATOR_MODE_NORMAL
                    | REGULATOR_MODE_STANDBY,
        .valid_ops_mask     = REGULATOR_CHANGE_STATUS
                    | REGULATOR_CHANGE_MODE,
    },
    .num_consumer_supplies      = ARRAY_SIZE(rm680_vemmc_consumers),
    .consumer_supplies      = rm680_vemmc_consumers,
};

static struct fixed_voltage_config rm680_vemmc_config = {
    .supply_name        = "VEMMC",
    .microvolts     = 2900000,
    .gpio           = 157,
    .startup_delay      = 150,
    .enable_high        = 1,
    .init_data      = &rm680_vemmc,
};

static struct platform_device rm680_vemmc_device = {
    .name           = "reg-fixed-voltage",
    .dev            = {
        .platform_data  = &rm680_vemmc_config,
    },
};

static struct platform_device *rm680_peripherals_devices[] __initdata = {
    &rm680_vemmc_device,
};

/* TWL */
static struct twl4030_gpio_platform_data rm680_gpio_data = {
    .pullups        = BIT(0),
    .pulldowns      = BIT(1) | BIT(2) | BIT(8) | BIT(15),
};

static struct twl4030_platform_data rm680_twl_data = {
    .gpio           = &rm680_gpio_data,
    /* add rest of the children here */
};

static void __init rm680_i2c_init(void)
{
    omap3_pmic_get_config(&rm680_twl_data, TWL_COMMON_PDATA_USB, 0);
    omap_pmic_init(1, 2900, "twl5031", 7 + OMAP_INTC_START, &rm680_twl_data);
    omap_register_i2c_bus(2, 400, NULL, 0);
    omap_register_i2c_bus(3, 400, NULL, 0);
}

#if defined(CONFIG_MTD_ONENAND_OMAP2) || \
    defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
static struct omap_onenand_platform_data board_onenand_data[] = {
    {
        .gpio_irq   = 65,
        .flags      = ONENAND_SYNC_READWRITE,
    }
};
#endif

/* eMMC */
static struct omap2_hsmmc_info mmc[] __initdata = {
    {
        .name       = "internal",
        .mmc        = 2,
        .caps       = MMC_CAP_4_BIT_DATA | MMC_CAP_MMC_HIGHSPEED,
        .gpio_cd    = -EINVAL,
        .gpio_wp    = -EINVAL,
    },
    { /* Terminator */ }
};

static void __init rm680_peripherals_init(void)
{
    platform_add_devices(rm680_peripherals_devices,
                ARRAY_SIZE(rm680_peripherals_devices));
    rm680_i2c_init();
    gpmc_onenand_init(board_onenand_data);
    omap_hsmmc_init(mmc);
}

#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
    { .reg_offset = OMAP_MUX_TERMINATOR },
};
#endif

static void __init rm680_init(void)
{
    struct omap_sdrc_params *sdrc_params;

    omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
    omap_serial_init();

    sdrc_params = nokia_get_sdram_timings();
    omap_sdrc_init(sdrc_params, sdrc_params);

    usb_musb_init(NULL);
    rm680_peripherals_init();
}

MACHINE_START(NOKIA_RM680, "Nokia RM-680 board")
    .atag_offset    = 0x100,
    .reserve    = omap_reserve,
    .map_io     = omap3_map_io,
    .init_early = omap3630_init_early,
    .init_irq   = omap3_init_irq,
    .handle_irq = omap3_intc_handle_irq,
    .init_machine   = rm680_init,
    .init_late  = omap3630_init_late,
    .timer      = &omap3_timer,
    .restart    = omap_prcm_restart,
MACHINE_END

MACHINE_START(NOKIA_RM696, "Nokia RM-696 board")
    .atag_offset    = 0x100,
    .reserve    = omap_reserve,
    .map_io     = omap3_map_io,
    .init_early = omap3630_init_early,
    .init_irq   = omap3_init_irq,
    .handle_irq = omap3_intc_handle_irq,
    .init_machine   = rm680_init,
    .init_late  = omap3630_init_late,
    .timer      = &omap3_timer,
    .restart    = omap_prcm_restart,
MACHINE_END