/**************************************************************************** * boards/arm/imxrt/imxrt1050-evk/src/imxrt_mmcsd_spi.c * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include #include #include "arm_internal.h" #include "chip.h" #include "imxrt_lpspi.h" #ifdef CONFIG_MMCSD_SPI /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ #ifndef CONFIG_IMXRT_LPSPI1 # error "SD driver requires CONFIG_IMXRT_LPSPI1 to be enabled" #endif #ifdef CONFIG_DISABLE_MOUNTPOINT # error "SD driver requires CONFIG_DISABLE_MOUNTPOINT to be disabled" #endif /**************************************************************************** * Private Definitions ****************************************************************************/ static const int SD_SPI_PORT = CONFIG_NSH_MMCSDSPIPORTNO; /* SD is connected to SPI1 port */ static const int SD_SLOT_NO = 0; /* There is only one SD slot */ /**************************************************************************** * Private Functions ****************************************************************************/ /* NOTE: We are using a SDCard adapter/module without Card Detect pin! * Then we don't need to Card Detect callback here. */ /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: imxrt_spi1register * * Description: * Registers media change callback ****************************************************************************/ #ifdef CONFIG_IMXRT_LPSPI1 int imxrt_lpspi1register(struct spi_dev_s *dev, spi_mediachange_t callback, void *arg) { spiinfo("INFO: Registering spi1 device\n"); return OK; } #endif /**************************************************************************** * Name: imxrt_mmcsd_spi_initialize * * Description: * Initialize SPI-based SD card and card detect thread. * ****************************************************************************/ int imxrt_mmcsd_spi_initialize(int minor) { struct spi_dev_s *spi; int rv; mcinfo("INFO: Initializing mmcsd card\n"); spi = imxrt_lpspibus_initialize(SD_SPI_PORT); if (spi == NULL) { mcerr("ERROR: Failed to initialize SPI port %d\n", SD_SPI_PORT); return -ENODEV; } rv = mmcsd_spislotinitialize(minor, SD_SLOT_NO, spi); if (rv < 0) { mcerr("ERROR: Failed to bind SPI port %d to SD slot %d\n", SD_SPI_PORT, SD_SLOT_NO); return rv; } spiinfo("INFO: mmcsd card has been initialized successfully\n"); return OK; } #endif /* CONFIG_MMCSD_SPI */