board-sx1-mmc.c

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/*
 * linux/arch/arm/mach-omap1/board-sx1-mmc.c
 *
 * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
 * Author: Carlos Eduardo Aguiar <[email protected]>
 *
 * This code is based on linux/arch/arm/mach-omap1/board-h2-mmc.c, which is:
 * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
 *
 * 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/gpio.h>
#include <linux/platform_device.h>

#include <mach/hardware.h>
#include <plat/mmc.h>
#include <mach/board-sx1.h>

#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)

static int mmc_set_power(struct device *dev, int slot, int power_on,
                int vdd)
{
    int err;
    u8 dat = 0;

    err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat);
    if (err < 0)
        return err;

    if (power_on)
        dat |= SOFIA_MMC_POWER;
    else
        dat &= ~SOFIA_MMC_POWER;

    return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat);
}

/* Cover switch is at OMAP_MPUIO(3) */
static struct omap_mmc_platform_data mmc1_data = {
    .nr_slots                       = 1,
    .slots[0]       = {
        .set_power              = mmc_set_power,
        .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
        .name                   = "mmcblk",
    },
};

static struct omap_mmc_platform_data *mmc_data[OMAP15XX_NR_MMC];

void __init sx1_mmc_init(void)
{
    mmc_data[0] = &mmc1_data;
    omap1_init_mmc(mmc_data, OMAP15XX_NR_MMC);
}

#else

void __init sx1_mmc_init(void)
{
}

#endif