forked from Imagelibrary/rtems
d735d4459c
This BSP supports a custom STM32U5 based board. It uses a similar structure like the existing STM32H7 BSP and therefore should be well adaptable to other boards. Co-authored-by: Christian Mauderer <christian.mauderer@embedded-brains.de>
95 lines
3.1 KiB
C
95 lines
3.1 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/**
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* @file
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*
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* @ingroup RTEMSBSPsARMSTM32U5
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*
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* @brief Configuration for the SD card pins
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*/
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/*
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* Copyright (C) 2024 embedded brains GmbH & Co. KG
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stm32u5/hal.h>
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static const stm32u5_gpio_config gpioc_af12 = {
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.regs = GPIOC,
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.config = {
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.Pin = GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_12,
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.Mode = GPIO_MODE_AF_PP,
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.Pull = GPIO_PULLUP,
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.Speed = GPIO_SPEED_FREQ_VERY_HIGH,
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.Alternate = GPIO_AF12_SDMMC1
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}
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};
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static const stm32u5_gpio_config gpioc_af12_2 = {
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.regs = GPIOC,
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.config = {
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.Pin = GPIO_PIN_11,
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.Mode = GPIO_MODE_AF_PP,
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.Pull = GPIO_PULLUP,
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.Speed = GPIO_SPEED_FREQ_VERY_HIGH,
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.Alternate = GPIO_AF12_SDMMC1
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}
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};
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static const stm32u5_gpio_config gpiod_af12 = {
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.regs = GPIOD,
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.config = {
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.Pin = GPIO_PIN_2,
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.Mode = GPIO_MODE_AF_PP,
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.Pull = GPIO_PULLUP,
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.Speed = GPIO_SPEED_FREQ_VERY_HIGH,
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.Alternate = GPIO_AF12_SDMMC1
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}
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};
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void HAL_SD_MspInit( SD_HandleTypeDef *hsd )
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{
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/* Set PD7 to LOW to enable power to SD Card. */
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GPIO_InitTypeDef GPIO_InitStruct = { 0 };
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__HAL_RCC_GPIOD_CLK_ENABLE();
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HAL_GPIO_WritePin( GPIOD, GPIO_PIN_7, GPIO_PIN_RESET );
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GPIO_InitStruct.Pin = GPIO_PIN_7;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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HAL_GPIO_Init( GPIOD, &GPIO_InitStruct );
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HAL_GPIO_WritePin( GPIOD, GPIO_PIN_7, GPIO_PIN_RESET );
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sleep( 1 );
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/* Initializes the clock and gpio pins for SDMMC1 module */
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stm32u5_clk_enable( STM32U5_MODULE_SDMMC1 );
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stm32u5_gpio_init( &gpioc_af12 );
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stm32u5_gpio_init( &gpioc_af12_2 );
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stm32u5_gpio_init( &gpiod_af12 );
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}
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