0b474eef9c
PRIMARY, SECONDARY, NANOKERNEL, MICROKERNEL init levels are now deprecated. New init levels introduced: PRE_KERNEL_1, PRE_KERNEL_2, POST_KERNEL to replace them. Most existing code has instances of PRIMARY replaced with PRE_KERNEL_1, SECONDARY with POST_KERNEL as SECONDARY has had a longstanding bug where the documentation specified SECONDARY ran before the kernel started up, but actually ran afterwards. Change-Id: I771bc634e9caf7f17dbf214a270bc9967eed7d32 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
/*
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* Copyright (c) 2016 Open-RnD Sp. z o.o.
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*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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
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* @brief System/hardware module for STM32F1 processor
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*/
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#include <nanokernel.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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/**
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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 stm32f1_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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/* Setup the vector table offset register (VTOR),
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* which is located at the beginning of flash area.
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*/
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_scs_relocate_vector_table((void *)CONFIG_FLASH_BASE_ADDRESS);
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/* Clear all faults */
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_ScbMemFaultAllFaultsReset();
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_ScbBusFaultAllFaultsReset();
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_ScbUsageFaultAllFaultsReset();
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_ScbHardFaultAllFaultsReset();
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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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return 0;
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}
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SYS_INIT(stm32f1_init, PRE_KERNEL_1, 0);
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