| /* |
| * 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 <zephyr/kernel.h> |
| #include <zephyr/init.h> |
| #include <hal/nrf_power.h> |
| #include <soc/nrfx_coredep.h> |
| #include <zephyr/logging/log.h> |
| |
| #include <cmsis_core.h> |
| |
| #define LOG_LEVEL CONFIG_SOC_LOG_LEVEL |
| LOG_MODULE_REGISTER(soc); |
| |
| static int nordicsemi_nrf52_init(void) |
| { |
| #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(NRF_POWER, true); |
| #endif |
| #if NRF_POWER_HAS_DCDCEN_VDDH && defined(CONFIG_SOC_DCDC_NRF52X_HV) |
| nrf_power_dcdcen_vddh_set(NRF_POWER, true); |
| #endif |
| |
| return 0; |
| } |
| |
| void arch_busy_wait(uint32_t time_us) |
| { |
| nrfx_coredep_delay_us(time_us); |
| } |
| |
| SYS_INIT(nordicsemi_nrf52_init, PRE_KERNEL_1, 0); |