1 /* 2 * Copyright (c) 2023 Nordic Semiconductor ASA 3 * SPDX-License-Identifier: Apache-2.0 4 */ 5 6 #include <zephyr/sys/poweroff.h> 7 #include <zephyr/toolchain.h> 8 #include <zephyr/drivers/retained_mem/nrf_retained_mem.h> 9 10 #if defined(CONFIG_SOC_SERIES_NRF51X) || defined(CONFIG_SOC_SERIES_NRF52X) 11 #include <hal/nrf_power.h> 12 #elif defined(CONFIG_SOC_SERIES_NRF54HX) 13 #include <power.h> 14 #else 15 #include <hal/nrf_regulators.h> 16 #endif 17 #if defined(CONFIG_SOC_SERIES_NRF54LX) 18 #include <helpers/nrfx_reset_reason.h> 19 #endif 20 21 #if defined(CONFIG_HAS_NORDIC_RAM_CTRL) 22 #include <helpers/nrfx_ram_ctrl.h> 23 #endif 24 z_sys_poweroff(void)25void z_sys_poweroff(void) 26 { 27 #if defined(CONFIG_HAS_NORDIC_RAM_CTRL) 28 uint8_t *ram_start; 29 size_t ram_size; 30 31 #if defined(NRF_MEMORY_RAM_BASE) 32 ram_start = (uint8_t *)NRF_MEMORY_RAM_BASE; 33 #else 34 ram_start = (uint8_t *)NRF_MEMORY_RAM0_BASE; 35 #endif 36 37 ram_size = 0; 38 #if defined(NRF_MEMORY_RAM_SIZE) 39 ram_size += NRF_MEMORY_RAM_SIZE; 40 #endif 41 #if defined(NRF_MEMORY_RAM0_SIZE) 42 ram_size += NRF_MEMORY_RAM0_SIZE; 43 #endif 44 #if defined(NRF_MEMORY_RAM1_SIZE) 45 ram_size += NRF_MEMORY_RAM1_SIZE; 46 #endif 47 #if defined(NRF_MEMORY_RAM2_SIZE) 48 ram_size += NRF_MEMORY_RAM2_SIZE; 49 #endif 50 51 /* Disable retention for all memory blocks */ 52 nrfx_ram_ctrl_retention_enable_set(ram_start, ram_size, false); 53 54 #endif /* defined(CONFIG_HAS_NORDIC_RAM_CTRL) */ 55 56 #if defined(CONFIG_RETAINED_MEM_NRF_RAM_CTRL) 57 /* Restore retention for retained_mem driver regions defined in devicetree */ 58 (void)z_nrf_retained_mem_retention_apply(); 59 #endif 60 61 #if defined(CONFIG_SOC_SERIES_NRF54LX) 62 nrfx_reset_reason_clear(UINT32_MAX); 63 #endif 64 #if defined(CONFIG_SOC_SERIES_NRF51X) || defined(CONFIG_SOC_SERIES_NRF52X) 65 nrf_power_system_off(NRF_POWER); 66 #elif defined(CONFIG_SOC_SERIES_NRF54HX) 67 nrf_poweroff(); 68 #else 69 nrf_regulators_system_off(NRF_REGULATORS); 70 #endif 71 72 CODE_UNREACHABLE; 73 } 74
