feat(imx8mm): enable dram retention suuport on imx8mm
Enable dram retention support on i.MX8MM.
Change-Id: I76ada615d386602e551d572ff4e60ee19bb8e418
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
diff --git a/plat/imx/imx8m/imx8m_psci_common.c b/plat/imx/imx8m/imx8m_psci_common.c
index 9dfd311..f3ff9f4 100644
--- a/plat/imx/imx8m/imx8m_psci_common.c
+++ b/plat/imx/imx8m/imx8m_psci_common.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2022, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -13,6 +13,7 @@
#include <lib/mmio.h>
#include <lib/psci/psci.h>
+#include <dram.h>
#include <gpc.h>
#include <imx8m_psci.h>
#include <plat_imx8.h>
@@ -118,8 +119,10 @@
if (!is_local_state_run(CLUSTER_PWR_STATE(target_state)))
imx_set_cluster_powerdown(core_id, CLUSTER_PWR_STATE(target_state));
- if (is_local_state_off(SYSTEM_PWR_STATE(target_state)))
+ if (is_local_state_off(SYSTEM_PWR_STATE(target_state))) {
imx_set_sys_lpm(core_id, true);
+ dram_enter_retention();
+ }
}
void imx_domain_suspend_finish(const psci_power_state_t *target_state)
@@ -127,8 +130,10 @@
uint64_t mpidr = read_mpidr_el1();
unsigned int core_id = MPIDR_AFFLVL0_VAL(mpidr);
- if (is_local_state_off(SYSTEM_PWR_STATE(target_state)))
+ if (is_local_state_off(SYSTEM_PWR_STATE(target_state))) {
+ dram_exit_retention();
imx_set_sys_lpm(core_id, false);
+ }
if (!is_local_state_run(CLUSTER_PWR_STATE(target_state))) {
imx_clear_rbc_count();