dd481e2dc3
Following activation of Cube LL based clock control driver, this commits cleans up the useless structures for RCC definitions and remove code relative to native L4 Clock control driver. Change-Id: Ic0408d5f5ec66651d46d13dfaf447da2666367cd Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
52 lines
947 B
C
52 lines
947 B
C
/*
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* Copyright (c) 2016 Open-RnD Sp. z o.o.
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* Copyright (c) 2016 BayLibre, SAS
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief System/hardware module for STM32L4 processor
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*/
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#include <kernel.h>
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#include <device.h>
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#include <init.h>
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#include <soc.h>
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#include <arch/cpu.h>
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#include <cortex_m/exc.h>
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/**
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* @brief Perform basic hardware initialization at boot.
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*
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* This needs to be run from the very beginning.
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* So the init priority has to be 0 (zero).
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*
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* @return 0
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*/
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static int stm32l4_init(struct device *arg)
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{
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uint32_t key;
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ARG_UNUSED(arg);
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key = irq_lock();
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_ClearFaults();
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/* Install default handler that simply resets the CPU
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* if configured in the kernel, NOP otherwise
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*/
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NMI_INIT();
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irq_unlock(key);
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/* Update CMSIS SystemCoreClock variable (HCLK) */
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/* At reset, System core clock is set to 4MHz */
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SystemCoreClock = 4000000;
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return 0;
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}
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SYS_INIT(stm32l4_init, PRE_KERNEL_1, 0);
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