| /* |
| * Copyright (c) 2018 Nordic Semiconductor ASA |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /** |
| * @file |
| * @brief System/hardware module for Nordic Semiconductor nRF91 family processor |
| * |
| * This module provides routines to initialize and support board-level hardware |
| * for the Nordic Semiconductor nRF91 family processor. |
| */ |
| |
| #include <zephyr/kernel.h> |
| #include <zephyr/init.h> |
| #include <zephyr/arch/arm/aarch32/cortex_m/cmsis.h> |
| #include <soc/nrfx_coredep.h> |
| #include <zephyr/logging/log.h> |
| |
| #ifdef CONFIG_RUNTIME_NMI |
| extern void z_arm_nmi_init(void); |
| #define NMI_INIT() z_arm_nmi_init() |
| #else |
| #define NMI_INIT() |
| #endif |
| |
| #if defined(CONFIG_SOC_NRF9160) |
| #include <system_nrf9160.h> |
| #else |
| #error "Unknown SoC." |
| #endif |
| |
| #define LOG_LEVEL CONFIG_SOC_LOG_LEVEL |
| LOG_MODULE_REGISTER(soc); |
| |
| static int nordicsemi_nrf91_init(const struct device *arg) |
| { |
| uint32_t key; |
| |
| ARG_UNUSED(arg); |
| |
| key = irq_lock(); |
| |
| #ifdef CONFIG_NRF_ENABLE_ICACHE |
| /* Enable the instruction cache */ |
| NRF_NVMC->ICACHECNF = NVMC_ICACHECNF_CACHEEN_Msk; |
| #endif |
| |
| /* Install default handler that simply resets the CPU |
| * if configured in the kernel, NOP otherwise |
| */ |
| NMI_INIT(); |
| |
| irq_unlock(key); |
| |
| return 0; |
| } |
| |
| void arch_busy_wait(uint32_t time_us) |
| { |
| nrfx_coredep_delay_us(time_us); |
| } |
| |
| SYS_INIT(nordicsemi_nrf91_init, PRE_KERNEL_1, 0); |