src/bsp/lk/platform/stm32f4xx/init.c

/*
 * Copyright (c) 2012 Travis Geiselbrecht
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files
 * (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
#include <err.h>
#include <debug.h>
#include <dev/uart.h>
#include <platform.h>
#include <platform/stm32.h>
#include <arch/arm/cm.h>
#include <stm32f4xx_rcc.h>
#include "system_stm32f4xx.h"

void platform_early_init(void)
{
	// Crank up the clock before initing timers.
	SystemInit();

	// start the systick timer
	RCC_ClocksTypeDef clocks;
	RCC_GetClocksFreq(&clocks);
	arm_cm_systick_init(clocks.SYSCLK_Frequency);

	stm32_timer_early_init();
	stm32_gpio_early_init();
}

void platform_init(void)
{
	stm32_timer_init();
}