LXR linux/arch/arm/mach-omap1/board-sx1-mmc.c

   1/*
   2 * linux/arch/arm/mach-omap1/board-sx1-mmc.c
   3 *
   4 * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
   5 * Author: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
   6 *
   7 * This code is based on linux/arch/arm/mach-omap1/board-h2-mmc.c, which is:
   8 * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
   9 *
  10 * This program is free software; you can redistribute it and/or modify
  11 * it under the terms of the GNU General Public License version 2 as
  12 * published by the Free Software Foundation.
  13 */
  14
  15#include <linux/gpio.h>
  16#include <linux/platform_device.h>
  17
  18#include <mach/hardware.h>
  19#include "board-sx1.h"
  20
  21#include "mmc.h"
  22
  23#if IS_ENABLED(CONFIG_MMC_OMAP)
  24
  25static int mmc_set_power(struct device *dev, int slot, int power_on,
  26                                int vdd)
  27{
  28        int err;
  29        u8 dat = 0;
  30
  31        err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat);
  32        if (err < 0)
  33                return err;
  34
  35        if (power_on)
  36                dat |= SOFIA_MMC_POWER;
  37        else
  38                dat &= ~SOFIA_MMC_POWER;
  39
  40        return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat);
  41}
  42
  43/* Cover switch is at OMAP_MPUIO(3) */
  44static struct omap_mmc_platform_data mmc1_data = {
  45        .nr_slots                       = 1,
  46        .slots[0]       = {
  47                .set_power              = mmc_set_power,
  48                .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
  49                .name                   = "mmcblk",
  50        },
  51};
  52
  53static struct omap_mmc_platform_data *mmc_data[OMAP15XX_NR_MMC];
  54
  55void __init sx1_mmc_init(void)
  56{
  57        mmc_data[0] = &mmc1_data;
  58        omap1_init_mmc(mmc_data, OMAP15XX_NR_MMC);
  59}
  60
  61#else
  62
  63void __init sx1_mmc_init(void)
  64{
  65}
  66
  67#endif
  68