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

   1/*
   2 * linux/arch/arm/mach-omap1/board-h3-mmc.c
   3 *
   4 * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
   5 * Author: Felipe Balbi <felipe.lima@indt.org.br>
   6 *
   7 * This code is based on linux/arch/arm/mach-omap2/board-n800-mmc.c, which is:
   8 * Copyright (C) 2006 Nokia Corporation
   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#include <linux/gpio.h>
  15#include <linux/platform_device.h>
  16
  17#include <linux/i2c/tps65010.h>
  18
  19#include "common.h"
  20#include "board-h3.h"
  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        gpio_set_value(H3_TPS_GPIO_MMC_PWR_EN, power_on);
  29        return 0;
  30}
  31
  32/*
  33 * H3 could use the following functions tested:
  34 * - mmc_get_cover_state that uses OMAP_MPUIO(1)
  35 * - mmc_get_wp that maybe uses OMAP_MPUIO(3)
  36 */
  37static struct omap_mmc_platform_data mmc1_data = {
  38        .nr_slots                       = 1,
  39        .slots[0]       = {
  40                .set_power              = mmc_set_power,
  41                .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
  42                .name                   = "mmcblk",
  43        },
  44};
  45
  46static struct omap_mmc_platform_data *mmc_data[OMAP16XX_NR_MMC];
  47
  48void __init h3_mmc_init(void)
  49{
  50        int ret;
  51
  52        ret = gpio_request(H3_TPS_GPIO_MMC_PWR_EN, "MMC power");
  53        if (ret < 0)
  54                return;
  55        gpio_direction_output(H3_TPS_GPIO_MMC_PWR_EN, 0);
  56
  57        mmc_data[0] = &mmc1_data;
  58        omap1_init_mmc(mmc_data, OMAP16XX_NR_MMC);
  59}
  60
  61#else
  62
  63void __init h3_mmc_init(void)
  64{
  65}
  66
  67#endif
  68