96 lines
3.0 KiB
C
96 lines
3.0 KiB
C
/****************************************************************************
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* boards/risc-v/mpfs/common/src/mpfs_emmcsd.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <debug.h>
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#include <errno.h>
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#include <nuttx/mmcsd.h>
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#include "mpfs_emmcsd.h"
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#include "board_config.h"
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static struct sdio_dev_s *g_sdio_dev;
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: board_emmcsd_init
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*
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* Description:
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* Configure the eMMCSD driver.
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*
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* Returned Value:
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* Zero (OK) is returned on success; A negated errno value is returned
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* to indicate the nature of any failure.
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*
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****************************************************************************/
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int mpfs_board_emmcsd_init(void)
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{
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int ret;
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#ifdef CONFIG_MPFS_EMMCSD_MUX_GPIO
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/* Configure eMMC / SD-card signal GPIO */
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finfo("Configuring EMMCSD MUX GPIO\n");
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mpfs_configgpio(MPFS_EMMCSD_GPIO);
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mpfs_gpiowrite(MPFS_EMMCSD_GPIO, false);
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#endif
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/* Mount the SDIO-based MMC/SD block driver */
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/* First, get an instance of the SDIO interface */
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finfo("Initializing SDIO slot %d\n", SDIO_SLOTNO);
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g_sdio_dev = sdio_initialize(SDIO_SLOTNO);
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if (!g_sdio_dev)
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{
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ferr("ERROR: Failed to initialize SDIO slot %d\n", SDIO_SLOTNO);
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return -ENODEV;
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}
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/* Now bind the SDIO interface to the MMC/SD driver */
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finfo("Bind SDIO to the MMC/SD driver, minor=%d\n", SDIO_MINOR);
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ret = mmcsd_slotinitialize(SDIO_MINOR, g_sdio_dev);
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if (ret != OK)
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{
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ferr("ERROR: Failed to bind SDIO to the MMC/SD driver: %d\n", ret);
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return ret;
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}
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sdio_mediachange(g_sdio_dev, true);
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return OK;
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}
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