| /* |
| * Copyright (c) 2019 Nordic Semiconductor ASA |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /** |
| * @file |
| * @brief System/hardware module for Nordic Semiconductor nRF53 family processor |
| * |
| * This module provides routines to initialize and support board-level hardware |
| * for the Nordic Semiconductor nRF53 family processor. |
| */ |
| |
| #include <kernel.h> |
| #include <init.h> |
| #include <arch/arm/cortex_m/cmsis.h> |
| #include <soc/nrfx_coredep.h> |
| #include <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_NRF5340_CPUAPP) |
| #include <system_nrf5340_application.h> |
| #elif defined(CONFIG_SOC_NRF5340_CPUNET) |
| #include <system_nrf5340_network.h> |
| #else |
| #error "Unknown nRF53 SoC." |
| #endif |
| |
| #define LOG_LEVEL CONFIG_SOC_LOG_LEVEL |
| LOG_MODULE_REGISTER(soc); |
| |
| static int nordicsemi_nrf53_init(struct device *arg) |
| { |
| u32_t key; |
| |
| ARG_UNUSED(arg); |
| |
| key = irq_lock(); |
| |
| #ifdef CONFIG_NRF_ENABLE_CACHE |
| #ifdef CONFIG_SOC_NRF5340_CPUAPP |
| /* Enable the instruction & data cache */ |
| NRF_CACHE->ENABLE = CACHE_ENABLE_ENABLE_Msk; |
| #endif /* CONFIG_SOC_NRF5340_CPUAPP */ |
| #ifdef CONFIG_SOC_NRF5340_CPUNET |
| NRF_NVMC->ICACHECNF |= NVMC_ICACHECNF_CACHEEN_Enabled; |
| #endif /* CONFIG_SOC_NRF5340_CPUNET */ |
| #endif |
| |
| #if defined(CONFIG_SOC_NRF5340_CPUAPP) && \ |
| !defined(CONFIG_TRUSTED_EXECUTION_NONSECURE) |
| *((u32_t *)0x500046D0) = 0x1; |
| #endif |
| |
| #if defined(CONFIG_SOC_DCDC_NRF53X_APP) |
| NRF_REGULATORS->VREGMAIN.DCDCEN = 1; |
| #endif |
| #if defined(CONFIG_SOC_DCDC_NRF53X_NET) |
| NRF_REGULATORS->VREGRADIO.DCDCEN = 1; |
| #endif |
| #if defined(CONFIG_SOC_DCDC_NRF53X_HV) |
| NRF_REGULATORS->VREGH.DCDCEN = 1; |
| #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(u32_t time_us) |
| { |
| nrfx_coredep_delay_us(time_us); |
| } |
| |
| void z_platform_init(void) |
| { |
| SystemInit(); |
| } |
| |
| |
| SYS_INIT(nordicsemi_nrf53_init, PRE_KERNEL_1, 0); |