162 lines
4.8 KiB
C
162 lines
4.8 KiB
C
/*
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ChibiOS - Copyright (C) 2006..2021 Giovanni Di Sirio
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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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,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* @file STM32MP1xx/hal_lld.c
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* @brief STM32MP1xx HAL subsystem low level driver source.
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*
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* @addtogroup HAL
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* @{
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*/
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#include "hal.h"
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/*===========================================================================*/
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/* Driver local definitions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported variables. */
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/*===========================================================================*/
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/**
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* @brief CMSIS system core clock variable.
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* @note It is declared in system_stm32g4xx.h.
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*/
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uint32_t SystemCoreClock = 0; //STM32_HCLK;
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/*===========================================================================*/
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/* Driver local variables and types. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local functions. */
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/*===========================================================================*/
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/**
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* @brief Configures the PWR unit.
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* @note CR1, CR2 and CR5 are not initialized inside this function.
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*/
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__STATIC_INLINE void hal_lld_set_static_pwr(void) {
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/* Static PWR configurations.*/
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PWR->MCUCR = STM32_PWR_MCUCR;
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PWR->MCUWKUPENR = STM32_PWR_MCUWKUPENR;
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}
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/*===========================================================================*/
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/* Driver interrupt handlers. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported functions. */
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/*===========================================================================*/
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/**
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* @brief Low level HAL driver initialization.
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*
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* @notapi
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*/
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void hal_lld_init(void) {
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/* DMA subsystems initialization.*/
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#if defined(STM32_DMA_REQUIRED)
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dmaInit();
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#endif
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/* NVIC initialization.*/
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nvicInit();
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/* IRQ subsystem initialization.*/
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irqInit();
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}
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#if defined(HAL_LLD_USE_CLOCK_MANAGEMENT) || defined(__DOXYGEN__)
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/**
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* @brief STM32L4xx clocks and PLL initialization.
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* @note All the involved constants come from the file @p board.h.
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* @note This function should be invoked just after the system reset.
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*
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* @special
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*/
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void stm32_clock_init(void) {
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#if !STM32_NO_INIT
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#endif /* STM32_NO_INIT */
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}
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#else /* !defined(HAL_LLD_USE_CLOCK_MANAGEMENT) */
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void stm32_clock_init(void) {
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#if !STM32_NO_INIT
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/* Trying to allocate SYSCFG.*/
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rccEnableAPB3(RCC_MC_APB3ENSETR_SYSCFGEN, false);
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/* Static PWR configurations.*/
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hal_lld_set_static_pwr();
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/* Clocks setup.*/
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// lse_init();
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#if !STM32_TZEN_ENABLED
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lsi_init();
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#endif
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#if !STM32_TZEN_ENABLED && !STM32_MCKPROT_ENABLED
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hsi_init();
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csi_init();
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hse_init();
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#endif
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#endif /* STM32_NO_INIT */
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}
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#endif /* !defined(HAL_LLD_USE_CLOCK_MANAGEMENT) */
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#if defined(HAL_LLD_USE_CLOCK_MANAGEMENT) || defined(__DOXYGEN__)
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/**
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* @brief Switches to a different clock configuration
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*
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* @param[in] ccp pointer to clock a @p halclkcfg_t structure
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* @return The clock switch result.
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* @retval false if the clock switch succeeded
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* @retval true if the clock switch failed
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*
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* @notapi
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*/
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bool hal_lld_clock_switch_mode(const halclkcfg_t *ccp) {
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(void)cpp;
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return false;
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}
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/**
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* @brief Returns the frequency of a clock point in Hz.
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*
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* @param[in] clkpt clock point to be returned
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* @return The clock point frequency in Hz or zero if the
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* frequency is unknown.
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*
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* @notapi
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*/
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halfreq_t hal_lld_get_clock_point(halclkpt_t clkpt) {
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osalDbgAssert(clkpt < CLK_ARRAY_SIZE, "invalid clock point");
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return clock_points[clkpt];
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}
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#endif /* defined(HAL_LLD_USE_CLOCK_MANAGEMENT) */
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/** @} */
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