1
0
mirror of https://github.com/RIOT-OS/RIOT.git synced 2024-12-29 04:50:03 +01:00
RIOT/cpu/nrf9160/cpu.c
2023-01-08 22:26:12 +01:00

53 lines
1.1 KiB
C

/*
* Copyright (C) 2021 Mesotic SAS
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup cpu_nrf9160
* @{
*
* @file
* @brief Implementation of the CPU initialization
*
* @author Dylan Laduranty <dylan.laduranty@mesotic.com>
*
* @}
*/
#include "cpu.h"
#include "kernel_init.h"
#include "nrf_clock.h"
#include "periph_conf.h"
#include "periph/init.h"
#include "stdio_base.h"
/**
* @brief Initialize the CPU, set IRQ priorities
*/
void cpu_init(void)
{
/* initialize hf clock */
clock_init_hf();
#ifdef NVMC_ICACHECNF_CACHEEN_Msk
/* enable instruction cache */
NRF_NVMC_S->ICACHECNF = (NVMC_ICACHECNF_CACHEEN_Msk);
#endif
/* call cortexm default initialization */
cortexm_init();
/* enable wake up on events for __WFE CPU sleep */
SCB->SCR |= SCB_SCR_SEVONPEND_Msk;
/* initialize stdio prior to periph_init() to allow use of DEBUG() there */
early_init();
/* trigger static peripheral initialization */
periph_init();
}