zephyr/drivers/clock_control/clock_stm32f2_f4_f7.c

55 lines
1.1 KiB
C

/*
*
* Copyright (c) 2017 Linaro Limited.
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <soc.h>
#include <stm32_ll_bus.h>
#include <stm32_ll_rcc.h>
#include <stm32_ll_utils.h>
#include <drivers/clock_control.h>
#include <sys/util.h>
#include <drivers/clock_control/stm32_clock_control.h>
#include "clock_stm32_ll_common.h"
#if STM32_SYSCLK_SRC_PLL
/* Macros to fill up division factors values */
#define z_pllm(v) LL_RCC_PLLM_DIV_ ## v
#define pllm(v) z_pllm(v)
#define z_pllp(v) LL_RCC_PLLP_DIV_ ## v
#define pllp(v) z_pllp(v)
/**
* @brief fill in pll configuration structure
*/
void config_pll_init(LL_UTILS_PLLInitTypeDef *pllinit)
{
pllinit->PLLM = pllm(STM32_PLL_M_DIVISOR);
pllinit->PLLN = STM32_PLL_N_MULTIPLIER;
pllinit->PLLP = pllp(STM32_PLL_P_DIVISOR);
}
#endif /* STM32_SYSCLK_SRC_PLL */
/**
* @brief Activate default clocks
*/
void config_enable_default_clocks(void)
{
/* Power Interface clock enabled by default */
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_PWR);
}
/**
* @brief Function kept for driver genericity
*/
void LL_RCC_MSI_Disable(void)
{
/* Do nothing */
}