| /* |
| * Copyright (c) 2016 Nordic Semiconductor ASA |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /** |
| * @file |
| * @brief System/hardware module for Nordic Semiconductor nRF52 family processor |
| * |
| * This module provides routines to initialize and support board-level hardware |
| * for the Nordic Semiconductor nRF52 family processor. |
| */ |
| |
| #include <kernel.h> |
| #include <init.h> |
| #include <cortex_m/exc.h> |
| |
| #ifdef CONFIG_RUNTIME_NMI |
| extern void _NmiInit(void); |
| #define NMI_INIT() _NmiInit() |
| #else |
| #define NMI_INIT() |
| #endif |
| |
| #if defined(CONFIG_SOC_NRF52810) |
| #include <system_nrf52810.h> |
| #elif defined(CONFIG_SOC_NRF52832) |
| #include <system_nrf52.h> |
| #elif defined(CONFIG_SOC_NRF52840) |
| #include <system_nrf52840.h> |
| #else |
| #error "Unknown SoC." |
| #endif |
| |
| #include <nrf.h> |
| #include <hal/nrf_power.h> |
| |
| static int nordicsemi_nrf52_init(struct device *arg) |
| { |
| u32_t key; |
| |
| ARG_UNUSED(arg); |
| |
| key = irq_lock(); |
| |
| SystemInit(); |
| |
| #ifdef CONFIG_NRF_ENABLE_ICACHE |
| /* Enable the instruction cache */ |
| NRF_NVMC->ICACHECNF = NVMC_ICACHECNF_CACHEEN_Msk; |
| #endif |
| |
| #if defined(CONFIG_SOC_DCDC_NRF52X) |
| nrf_power_dcdcen_set(true); |
| #endif |
| |
| _ClearFaults(); |
| |
| /* Install default handler that simply resets the CPU |
| * if configured in the kernel, NOP otherwise |
| */ |
| NMI_INIT(); |
| |
| irq_unlock(key); |
| |
| return 0; |
| } |
| |
| SYS_INIT(nordicsemi_nrf52_init, PRE_KERNEL_1, 0); |