63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
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/*
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* Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <stdbool.h>
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#include <arch.h>
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#include <arch_helpers.h>
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#include <common/debug.h>
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#include <plat_imx8.h>
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#include <sci/sci.h>
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void __dead2 imx_system_off(void)
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{
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sc_pm_set_sys_power_mode(ipc_handle, SC_PM_PW_MODE_OFF);
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wfi();
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ERROR("power off failed.\n");
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panic();
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}
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void __dead2 imx_system_reset(void)
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{
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sc_pm_reset(ipc_handle, SC_PM_RESET_TYPE_BOARD);
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wfi();
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ERROR("system reset failed.\n");
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panic();
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}
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int imx_validate_power_state(unsigned int power_state,
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psci_power_state_t *req_state)
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{
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int pwr_lvl = psci_get_pstate_pwrlvl(power_state);
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int pwr_type = psci_get_pstate_type(power_state);
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int state_id = psci_get_pstate_id(power_state);
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if (pwr_lvl > PLAT_MAX_PWR_LVL)
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return PSCI_E_INVALID_PARAMS;
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if (pwr_type == PSTATE_TYPE_POWERDOWN) {
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req_state->pwr_domain_state[MPIDR_AFFLVL0] = PLAT_MAX_OFF_STATE;
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if (!state_id)
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req_state->pwr_domain_state[MPIDR_AFFLVL1] = PLAT_MAX_RET_STATE;
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else
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req_state->pwr_domain_state[MPIDR_AFFLVL1] = PLAT_MAX_OFF_STATE;
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}
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return PSCI_E_SUCCESS;
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}
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void imx_get_sys_suspend_power_state(psci_power_state_t *req_state)
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{
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unsigned int i;
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/* CPU & cluster off, system in retention */
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for (i = MPIDR_AFFLVL0; i < PLAT_MAX_PWR_LVL; i++)
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req_state->pwr_domain_state[i] = PLAT_MAX_OFF_STATE;
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req_state->pwr_domain_state[PLAT_MAX_PWR_LVL] = PLAT_MAX_RET_STATE;
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}
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