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

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * linux/arch/arm/mach-omap1/board-sx1-mmc.c
   4 *
   5 * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
   6 * Author: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
   7 *
   8 * This code is based on linux/arch/arm/mach-omap1/board-h2-mmc.c, which is:
   9 * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
  10 */
  11
  12#include <linux/gpio.h>
  13#include <linux/platform_device.h>
  14
  15#include <mach/hardware.h>
  16#include "board-sx1.h"
  17
  18#include "mmc.h"
  19
  20#if IS_ENABLED(CONFIG_MMC_OMAP)
  21
  22static int mmc_set_power(struct device *dev, int slot, int power_on,
  23                                int vdd)
  24{
  25        int err;
  26        u8 dat = 0;
  27
  28        err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat);
  29        if (err < 0)
  30                return err;
  31
  32        if (power_on)
  33                dat |= SOFIA_MMC_POWER;
  34        else
  35                dat &= ~SOFIA_MMC_POWER;
  36
  37        return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat);
  38}
  39
  40/* Cover switch is at OMAP_MPUIO(3) */
  41static struct omap_mmc_platform_data mmc1_data = {
  42        .nr_slots                       = 1,
  43        .slots[0]       = {
  44                .set_power              = mmc_set_power,
  45                .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
  46                .name                   = "mmcblk",
  47        },
  48};
  49
  50static struct omap_mmc_platform_data *mmc_data[OMAP15XX_NR_MMC];
  51
  52void __init sx1_mmc_init(void)
  53{
  54        mmc_data[0] = &mmc1_data;
  55        omap1_init_mmc(mmc_data, OMAP15XX_NR_MMC);
  56}
  57
  58#else
  59
  60void __init sx1_mmc_init(void)
  61{
  62}
  63
  64#endif
  65