From 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 28 Apr 2024 11:13:47 +0200
Subject: Adding upstream version 2.8.0+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 plat/imx/common/imx8_psci.c | 62 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 plat/imx/common/imx8_psci.c

(limited to 'plat/imx/common/imx8_psci.c')

diff --git a/plat/imx/common/imx8_psci.c b/plat/imx/common/imx8_psci.c
new file mode 100644
index 0000000..91d3370
--- /dev/null
+++ b/plat/imx/common/imx8_psci.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdbool.h>
+
+#include <arch.h>
+#include <arch_helpers.h>
+#include <common/debug.h>
+
+#include <plat_imx8.h>
+#include <sci/sci.h>
+
+void __dead2 imx_system_off(void)
+{
+	sc_pm_set_sys_power_mode(ipc_handle, SC_PM_PW_MODE_OFF);
+	wfi();
+	ERROR("power off failed.\n");
+	panic();
+}
+
+void __dead2 imx_system_reset(void)
+{
+	sc_pm_reset(ipc_handle, SC_PM_RESET_TYPE_BOARD);
+	wfi();
+	ERROR("system reset failed.\n");
+	panic();
+}
+
+int imx_validate_power_state(unsigned int power_state,
+			 psci_power_state_t *req_state)
+{
+	int pwr_lvl = psci_get_pstate_pwrlvl(power_state);
+	int pwr_type = psci_get_pstate_type(power_state);
+	int state_id = psci_get_pstate_id(power_state);
+
+	if (pwr_lvl > PLAT_MAX_PWR_LVL)
+		return PSCI_E_INVALID_PARAMS;
+
+	if (pwr_type == PSTATE_TYPE_POWERDOWN) {
+		req_state->pwr_domain_state[MPIDR_AFFLVL0] = PLAT_MAX_OFF_STATE;
+		if (!state_id)
+			req_state->pwr_domain_state[MPIDR_AFFLVL1] = PLAT_MAX_RET_STATE;
+		else
+			req_state->pwr_domain_state[MPIDR_AFFLVL1] = PLAT_MAX_OFF_STATE;
+	}
+
+	return PSCI_E_SUCCESS;
+}
+
+void imx_get_sys_suspend_power_state(psci_power_state_t *req_state)
+{
+	unsigned int i;
+
+	/* CPU & cluster off, system in retention */
+	for (i = MPIDR_AFFLVL0; i < PLAT_MAX_PWR_LVL; i++)
+		req_state->pwr_domain_state[i] = PLAT_MAX_OFF_STATE;
+	req_state->pwr_domain_state[PLAT_MAX_PWR_LVL] = PLAT_MAX_RET_STATE;
+}
+
-- 
cgit v1.2.3