LXR linux/arch/arm/mach-omap1/board-h3-mmc.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * linux/arch/arm/mach-omap1/board-h3-mmc.c
   4 *
   5 * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
   6 * Author: Felipe Balbi <felipe.lima@indt.org.br>
   7 *
   8 * This code is based on linux/arch/arm/mach-omap2/board-n800-mmc.c, which is:
   9 * Copyright (C) 2006 Nokia Corporation
  10 */
  11#include <linux/gpio.h>
  12#include <linux/platform_device.h>
  13
  14#include <linux/mfd/tps65010.h>
  15
  16#include "common.h"
  17#include "board-h3.h"
  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        gpio_set_value(H3_TPS_GPIO_MMC_PWR_EN, power_on);
  26        return 0;
  27}
  28
  29/*
  30 * H3 could use the following functions tested:
  31 * - mmc_get_cover_state that uses OMAP_MPUIO(1)
  32 * - mmc_get_wp that maybe uses OMAP_MPUIO(3)
  33 */
  34static struct omap_mmc_platform_data mmc1_data = {
  35        .nr_slots                       = 1,
  36        .slots[0]       = {
  37                .set_power              = mmc_set_power,
  38                .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
  39                .name                   = "mmcblk",
  40        },
  41};
  42
  43static struct omap_mmc_platform_data *mmc_data[OMAP16XX_NR_MMC];
  44
  45void __init h3_mmc_init(void)
  46{
  47        int ret;
  48
  49        ret = gpio_request(H3_TPS_GPIO_MMC_PWR_EN, "MMC power");
  50        if (ret < 0)
  51                return;
  52        gpio_direction_output(H3_TPS_GPIO_MMC_PWR_EN, 0);
  53
  54        mmc_data[0] = &mmc1_data;
  55        omap1_init_mmc(mmc_data, OMAP16XX_NR_MMC);
  56}
  57
  58#else
  59
  60void __init h3_mmc_init(void)
  61{
  62}
  63
  64#endif
  65