nuttx/boards/arm/imxrt1060-evk/src/imxrt_bringup.c

/****************************************************************************
 * config/imxrt1060-evk/src/imxrt_bringup.c
 *
 *   Copyright (C) 2018 Gregory Nutt. All rights reserved.
 *   Authors: Gregory Nutt <gnutt@nuttx.org>
 *            David Sidrane <david_s5@nscdg.com>
 *
 * 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 NuttX 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 <nuttx/config.h>

#include <sys/mount.h>
#include <sys/types.h>
#include <debug.h>

#include <syslog.h>
#include <nuttx/i2c/i2c_master.h>
#include <imxrt_lpi2c.h>
#include <imxrt_lpspi.h>

#ifdef CONFIG_IMXRT_USDHC
#  include "imxrt_usdhc.h"
#endif

#include "imxrt1060-evk.h"

#include <arch/board/board.h>  /* Must always be included last */

/****************************************************************************
 * Pre-processor Definitions
 ****************************************************************************/

/* Checking needed by MMC/SDCard */

#ifdef CONFIG_NSH_MMCSDMINOR
#  define MMCSD_MINOR CONFIG_NSH_MMCSDMINOR
#else
#  define MMCSD_MINOR 0
#endif

/****************************************************************************
 * Private Functions
 ****************************************************************************/

#if defined(CONFIG_I2C_DRIVER) && defined(CONFIG_IMXRT_LPI2C)
static void imxrt_i2c_register(int bus)
{
  FAR struct i2c_master_s *i2c;
  int ret;

  i2c = imxrt_i2cbus_initialize(bus);
  if (i2c == NULL)
    {
      serr("ERROR: Failed to get I2C%d interface\n", bus);
    }
  else
    {
      ret = i2c_register(i2c, bus);
      if (ret < 0)
        {
          serr("ERROR: Failed to register I2C%d driver: %d\n", bus, ret);
          imxrt_i2cbus_uninitialize(i2c);
        }
    }
}
#endif

#ifdef CONFIG_IMXRT_USDHC
static int nsh_sdmmc_initialize(void)
{
  struct sdio_dev_s *sdmmc;
  int ret = 0;

  /* Get an instance of the SDIO interface */

  sdmmc = imxrt_usdhc_initialize(0);
  if (!sdmmc)
    {
      syslog(LOG_ERR, "ERROR: Failed to initialize SD/MMC\n");
    }
  else
    {
      /* Bind the SDIO interface to the MMC/SD driver */

      ret = mmcsd_slotinitialize(0, sdmmc);
      if (ret != OK)
        {
          syslog(LOG_ERR,
                 "ERROR: Failed to bind SDIO to the MMC/SD driver: %d\n",
                 ret);
        }
    }
  return OK;
  }
#else
#  define nsh_sdmmc_initialize() (OK)
#endif

/****************************************************************************
 * Public Functions
 ****************************************************************************/

/****************************************************************************
 * Name: imxrt_bringup
 *
 * Description:
 *   Bring up board features
 *
 ****************************************************************************/

int imxrt_bringup(void)
{
  int ret;

  /* If we got here then perhaps not all initialization was successful, but
   * at least enough succeeded to bring-up NSH with perhaps reduced
   * capabilities.
   */

#ifdef CONFIG_FS_PROCFS
  /* Mount the procfs file system */

  ret = mount(NULL, "/proc", "procfs", 0, NULL);
  if (ret < 0)
    {
      syslog(LOG_ERR, "ERROR: Failed to mount procfs at /proc: %d\n", ret);
    }
#endif

#if defined(CONFIG_I2C_DRIVER) && defined(CONFIG_IMXRT_LPI2C1)
  imxrt_i2c_register(1);
#endif

#ifdef CONFIG_IMXRT_USDHC
  /* Initialize SDHC-base MMC/SD card support */

  nsh_sdmmc_initialize();
#endif

#ifdef CONFIG_MMCSD_SPI
  /* Initialize SPI-based MMC/SD card support */

  imxrt_spidev_initialize();

  ret = imxrt_mmcsd_spi_initialize(MMCSD_MINOR);
  if (ret < 0)
    {
      syslog(LOG_ERR, "ERROR: Failed to initialize SD slot %d: %d\n", ret);
    }
#endif

  UNUSED(ret);
  return OK;
}