| /* |
| * 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/aarch32/cortex_m/cmsis.h> |
| #include <soc/nrfx_coredep.h> |
| #include <logging/log.h> |
| #include <nrf_erratas.h> |
| #if defined(CONFIG_SOC_NRF5340_CPUAPP) |
| #include <hal/nrf_cache.h> |
| #include <hal/nrf_gpio.h> |
| #include <hal/nrf_oscillators.h> |
| #include <hal/nrf_regulators.h> |
| #elif defined(CONFIG_SOC_NRF5340_CPUNET) |
| #include <hal/nrf_nvmc.h> |
| #endif |
| |
| #define PIN_XL1 0 |
| #define PIN_XL2 1 |
| |
| #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(const struct device *arg) |
| { |
| uint32_t key; |
| |
| ARG_UNUSED(arg); |
| |
| key = irq_lock(); |
| |
| #if defined(CONFIG_SOC_NRF5340_CPUAPP) && defined(CONFIG_NRF_ENABLE_CACHE) |
| /* Enable the instruction & data cache */ |
| nrf_cache_enable(NRF_CACHE); |
| #elif defined(CONFIG_SOC_NRF5340_CPUNET) && defined(CONFIG_NRF_ENABLE_CACHE) |
| nrf_nvmc_icache_config_set(NRF_NVMC, NRF_NVMC_ICACHE_ENABLE); |
| #endif |
| |
| #if defined(CONFIG_SOC_NRF5340_CPUAPP) && \ |
| !defined(CONFIG_TRUSTED_EXECUTION_NONSECURE) |
| #if defined(CONFIG_SOC_ENABLE_LFXO) |
| nrf_oscillators_lfxo_cap_set(NRF_OSCILLATORS, |
| IS_ENABLED(CONFIG_SOC_LFXO_CAP_INT_6PF) ? |
| NRF_OSCILLATORS_LFXO_CAP_6PF : |
| IS_ENABLED(CONFIG_SOC_LFXO_CAP_INT_7PF) ? |
| NRF_OSCILLATORS_LFXO_CAP_7PF : |
| IS_ENABLED(CONFIG_SOC_LFXO_CAP_INT_9PF) ? |
| NRF_OSCILLATORS_LFXO_CAP_9PF : |
| NRF_OSCILLATORS_LFXO_CAP_EXTERNAL); |
| /* This can only be done from secure code. */ |
| nrf_gpio_pin_mcu_select(PIN_XL1, NRF_GPIO_PIN_MCUSEL_PERIPHERAL); |
| nrf_gpio_pin_mcu_select(PIN_XL2, NRF_GPIO_PIN_MCUSEL_PERIPHERAL); |
| #endif |
| #if defined(CONFIG_SOC_HFXO_CAP_INTERNAL) |
| /* This register is only accessible from secure code. */ |
| uint32_t xosc32mtrim = NRF_FICR->XOSC32MTRIM; |
| /* As specified in the nRF5340 PS: |
| * CAPVALUE = (((FICR->XOSC32MTRIM.SLOPE+56)*(CAPACITANCE*2-14)) |
| * +((FICR->XOSC32MTRIM.OFFSET-8)<<4)+32)>>6; |
| * where CAPACITANCE is the desired capacitor value in pF, holding any |
| * value between 7.0 pF and 20.0 pF in 0.5 pF steps. |
| */ |
| uint32_t slope = (xosc32mtrim & FICR_XOSC32MTRIM_SLOPE_Msk) |
| >> FICR_XOSC32MTRIM_SLOPE_Pos; |
| uint32_t offset = (xosc32mtrim & FICR_XOSC32MTRIM_OFFSET_Msk) |
| >> FICR_XOSC32MTRIM_OFFSET_Pos; |
| uint32_t capvalue = |
| ((slope + 56) * (CONFIG_SOC_HFXO_CAP_INT_VALUE_X2 - 14) |
| + ((offset - 8) << 4) + 32) >> 6; |
| |
| nrf_oscillators_hfxo_cap_set(NRF_OSCILLATORS, true, capvalue); |
| #elif defined(CONFIG_SOC_HFXO_CAP_EXTERNAL) |
| nrf_oscillators_hfxo_cap_set(NRF_OSCILLATORS, false, 0); |
| #endif |
| #endif /* defined(CONFIG_SOC_NRF5340_CPUAPP) && ... */ |
| |
| #if defined(CONFIG_SOC_DCDC_NRF53X_APP) |
| nrf_regulators_dcdcen_set(NRF_REGULATORS, true); |
| #endif |
| #if defined(CONFIG_SOC_DCDC_NRF53X_NET) |
| nrf_regulators_dcdcen_radio_set(NRF_REGULATORS, true); |
| #endif |
| #if defined(CONFIG_SOC_DCDC_NRF53X_HV) |
| nrf_regulators_dcdcen_vddh_set(NRF_REGULATORS, true); |
| #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_nrf53_init, PRE_KERNEL_1, 0); |