LXR linux/arch/arm/mach-omap1/board-h2-mmc.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * linux/arch/arm/mach-omap1/board-h2-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#include <linux/platform_data/gpio-omap.h>
  14#include <linux/mfd/tps65010.h>
  15
  16#include "board-h2.h"
  17#include "mmc.h"
  18
  19#if IS_ENABLED(CONFIG_MMC_OMAP)
  20
  21static int mmc_set_power(struct device *dev, int slot, int power_on,
  22                                int vdd)
  23{
  24        gpio_set_value(H2_TPS_GPIO_MMC_PWR_EN, power_on);
  25        return 0;
  26}
  27
  28static int mmc_late_init(struct device *dev)
  29{
  30        int ret = gpio_request(H2_TPS_GPIO_MMC_PWR_EN, "MMC power");
  31        if (ret < 0)
  32                return ret;
  33
  34        gpio_direction_output(H2_TPS_GPIO_MMC_PWR_EN, 0);
  35
  36        return ret;
  37}
  38
  39static void mmc_cleanup(struct device *dev)
  40{
  41        gpio_free(H2_TPS_GPIO_MMC_PWR_EN);
  42}
  43
  44/*
  45 * H2 could use the following functions tested:
  46 * - mmc_get_cover_state that uses OMAP_MPUIO(1)
  47 * - mmc_get_wp that uses OMAP_MPUIO(3)
  48 */
  49static struct omap_mmc_platform_data mmc1_data = {
  50        .nr_slots                       = 1,
  51        .init                           = mmc_late_init,
  52        .cleanup                        = mmc_cleanup,
  53        .slots[0]       = {
  54                .set_power              = mmc_set_power,
  55                .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
  56                .name                   = "mmcblk",
  57        },
  58};
  59
  60static struct omap_mmc_platform_data *mmc_data[OMAP16XX_NR_MMC];
  61
  62void __init h2_mmc_init(void)
  63{
  64        mmc_data[0] = &mmc1_data;
  65        omap1_init_mmc(mmc_data, OMAP16XX_NR_MMC);
  66}
  67
  68#else
  69
  70void __init h2_mmc_init(void)
  71{
  72}
  73
  74#endif
  75