text: /****************************************************************************
   * bsp/board/common/src/cxd56_emmcdev.c
   *
   *   Copyright 2018 Sony Semiconductor Solutions Corporation
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   * 3. Neither the name of Sony Semiconductor Solutions Corporation nor
   *    the names of its contributors may be used to endorse or promote
   *    products derived from this software without specific prior written
   *    permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
   * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
   * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
   * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
   * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
   * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
   * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   *
   ****************************************************************************/
  
  /****************************************************************************
   * Included Files
   ****************************************************************************/
  
  #include <sdk/config.h>
  
  #include <stdio.h>
  #include <errno.h>
  #include <debug.h>
  #include <sys/mount.h>
  #include <nuttx/board.h>
  #include <arch/board/board.h>
  #include "cxd56_emmc.h"
  
  /****************************************************************************
   * Pre-processor Definitions
   ****************************************************************************/
  
  #ifndef CONFIG_SFC_DEVNO
  #  define CONFIG_SFC_DEVNO 0
  #endif
  
  /****************************************************************************
   * Public Functions
   ****************************************************************************/
  
  /****************************************************************************
   * Name: board_emmc_initialize
   *
   * Description:
   *   Initialize the eMMC device and mount the file system.
   *
   ****************************************************************************/
  
  int board_emmc_initialize(void)
  {
    int ret;
  
    /* Power on the eMMC device */
  
    ret = board_power_control(POWER_EMMC, true);
    if (ret)
      {
        ferr("ERROR: Failed to power on eMMC. %d\n", ret);
        return -ENODEV;
      }
  
    /* Initialize the eMMC deivce */
  
    ret = cxd56_emmcinitialize();
    if (ret < 0)
      {
        ferr("ERROR: Failed to initialize eMMC. %d\n ", ret);
        return -ENODEV;
      }
  
    /* Mount the eMMC deivce */
  
    ret = mount("/dev/emmc0", "/mnt/vfat", "vfat", 0, NULL);
    if (ret < 0)
      {
        ferr("ERROR: Failed to mount the eMMC. %d\n", errno);
      }
  
    return ret;
  }
  