zephyr/drivers/clock_control/stm32f4x_ll_clock.c

/*
 *
 * Copyright (c) 2017 Linaro Limited.
 *
 * SPDX-License-Identifier: Apache-2.0
 */


#include <soc.h>
#include <soc_registers.h>
#include <clock_control.h>
#include <misc/util.h>
#include <clock_control/stm32_clock_control.h>
#include "stm32_ll_clock.h"


#ifdef CONFIG_CLOCK_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(CONFIG_CLOCK_STM32_PLL_M_DIVISOR);
	pllinit->PLLN = CONFIG_CLOCK_STM32_PLL_N_MULTIPLIER;
	pllinit->PLLP = pllp(CONFIG_CLOCK_STM32_PLL_P_DIVISOR);
}
#endif /* CONFIG_CLOCK_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 */
}