stm32h7/start/bspstarthooks.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /*
0004  * Copyright (C) 2020 embedded brains GmbH & Co. KG
0005  *
0006  * Redistribution and use in source and binary forms, with or without
0007  * modification, are permitted provided that the following conditions
0008  * are met:
0009  * 1. Redistributions of source code must retain the above copyright
0010  *    notice, this list of conditions and the following disclaimer.
0011  * 2. Redistributions in binary form must reproduce the above copyright
0012  *    notice, this list of conditions and the following disclaimer in the
0013  *    documentation and/or other materials provided with the distribution.
0014  *
0015  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0016  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0017  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0018  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0019  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0020  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0021  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0022  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0023  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0024  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0025  * POSSIBILITY OF SUCH DAMAGE.
0026  */
0027
0028 #include <bsp.h>
0029 #include <bsp/bootcard.h>
0030 #include <bsp/linker-symbols.h>
0031 #include <bsp/start.h>
0032 #include <stm32h7/hal.h>
0033 #include <stm32h7/memory.h>
0034 #include <stm32h7/mpu-config.h>
0035 #include <rtems/score/armv7m.h>
0036
0037 #include <string.h>
0038
0039 void HAL_MspInit(void)
0040 {
0041   __HAL_RCC_SYSCFG_CLK_ENABLE();
0042 }
0043
0044 void stm32h7_init_power(void)
0045 {
0046   HAL_PWREx_ConfigSupply(STM32H7_PWR_SUPPLY);
0047   __HAL_PWR_VOLTAGESCALING_CONFIG(stm32h7_config_pwr_regulator_voltagescaling);
0048
0049   while (!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {
0050     /* Wait */
0051   }
0052 }
0053
0054 void stm32h7_init_oscillator(void)
0055 {
0056   HAL_StatusTypeDef status;
0057
0058   status = HAL_RCC_OscConfig(RTEMS_DECONST(
0059     RCC_OscInitTypeDef *,
0060     &stm32h7_config_oscillator
0061   ));
0062   if (status != HAL_OK) {
0063     bsp_reset(RTEMS_FATAL_SOURCE_BSP, 0);
0064   }
0065 }
0066
0067 void stm32h7_init_clocks(void)
0068 {
0069   HAL_StatusTypeDef status;
0070
0071   status = HAL_RCC_ClockConfig(
0072     RTEMS_DECONST( RCC_ClkInitTypeDef *, &stm32h7_config_clocks ),
0073     stm32h7_config_flash_latency
0074   );
0075   if (status != HAL_OK) {
0076     bsp_reset(RTEMS_FATAL_SOURCE_BSP, 0);
0077   }
0078 }
0079
0080 void stm32h7_init_peripheral_clocks(void)
0081 {
0082   HAL_StatusTypeDef status;
0083
0084   status = HAL_RCCEx_PeriphCLKConfig(
0085     RTEMS_DECONST(
0086       RCC_PeriphCLKInitTypeDef *,
0087       &stm32h7_config_peripheral_clocks
0088     )
0089   );
0090   if (status != HAL_OK) {
0091     bsp_reset(RTEMS_FATAL_SOURCE_BSP, 0);
0092   }
0093 }
0094