| /* |
| * Copyright (c) 2021, NXP |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| #include <zephyr/kernel.h> |
| #include <zephyr/pm/pm.h> |
| #include "fsl_power.h" |
| |
| #include <zephyr/logging/log.h> |
| LOG_MODULE_DECLARE(soc, CONFIG_SOC_LOG_LEVEL); |
| |
| /*!< Power down all unnecessary blocks and enable RBB during deep sleep. */ |
| #define APP_DEEPSLEEP_RUNCFG0 (SYSCTL0_PDRUNCFG0_LPOSC_PD_MASK | \ |
| SYSCTL0_PDSLEEPCFG0_RBB_PD_MASK) |
| #define APP_DEEPSLEEP_RAM_APD 0xFFFFF8U |
| #define APP_DEEPSLEEP_RAM_PPD 0x0U |
| #define APP_EXCLUDE_FROM_DEEPSLEEP \ |
| (((const uint32_t[]){APP_DEEPSLEEP_RUNCFG0, \ |
| (SYSCTL0_PDSLEEPCFG1_FLEXSPI_SRAM_APD_MASK | \ |
| SYSCTL0_PDSLEEPCFG1_FLEXSPI_SRAM_PPD_MASK), \ |
| APP_DEEPSLEEP_RAM_APD, APP_DEEPSLEEP_RAM_PPD})) |
| |
| /* Invoke Low Power/System Off specific Tasks */ |
| __weak void pm_state_set(enum pm_state state, uint8_t substate_id) |
| { |
| ARG_UNUSED(substate_id); |
| |
| /* FIXME: When this function is entered the Kernel has disabled |
| * interrupts using BASEPRI register. This is incorrect as it prevents |
| * waking up from any interrupt which priority is not 0. Work around the |
| * issue and disable interrupts using PRIMASK register as recommended |
| * by ARM. |
| */ |
| |
| /* Set PRIMASK */ |
| __disable_irq(); |
| /* Set BASEPRI to 0 */ |
| irq_unlock(0); |
| |
| switch (state) { |
| case PM_STATE_RUNTIME_IDLE: |
| POWER_EnterSleep(); |
| break; |
| case PM_STATE_SUSPEND_TO_IDLE: |
| POWER_EnterDeepSleep(APP_EXCLUDE_FROM_DEEPSLEEP); |
| break; |
| default: |
| LOG_DBG("Unsupported power state %u", state); |
| break; |
| } |
| } |
| |
| /* Handle SOC specific activity after Low Power Mode Exit */ |
| __weak void pm_state_exit_post_ops(enum pm_state state, uint8_t substate_id) |
| { |
| ARG_UNUSED(state); |
| ARG_UNUSED(substate_id); |
| |
| /* Clear PRIMASK */ |
| __enable_irq(); |
| } |