mediatek: mt8195: add rtc power off sequence

mt8195 also uses mt6359p RTC. Revice mt8192 RTC and share the
driver with mt8195.

Change-Id: I20c73f6e0af67ef9d4c3d4e0ff373f93950e07db
Signed-off-by: Yidi Lin <yidi.lin@mediatek.com>

plat/mediatek/mt8192/drivers/rtc/rtc.h → plat/mediatek/common/drivers/rtc/rtc_mt6359p.h

@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef RTC_H
-#define RTC_H
+#ifndef RTC_MT6359P_H
+#define RTC_MT6359P_H
 
 /* RTC registers */
 enum {
@@ -194,4 +194,4 @@ int32_t RTC_Write_Trigger(void);
 int32_t Writeif_unlock(void);
 void rtc_power_off_sequence(void);
 
-#endif /* RTC_H */
+#endif /* RTC_MT6359P_H */

plat/mediatek/mt8192/include/rtc.h

+/*
+ * Copyright (c) 2021, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef RTC_H
+#define RTC_H
+
+#include <rtc_mt6359p.h>
+
+#endif  /* RTC_H */

plat/mediatek/mt8192/platform.mk

@@ -10,6 +10,7 @@ MTK_PLAT_SOC  := ${MTK_PLAT}/${PLAT}
 PLAT_INCLUDES := -I${MTK_PLAT}/common/                            \
                  -I${MTK_PLAT}/common/drivers/gic600/             \
                  -I${MTK_PLAT}/common/drivers/gpio/               \
+                 -I${MTK_PLAT}/common/drivers/rtc/                \
                  -I${MTK_PLAT}/common/drivers/timer/              \
                  -I${MTK_PLAT}/common/drivers/uart/               \
                  -I${MTK_PLAT}/common/lpm/                        \
@@ -21,7 +22,6 @@ PLAT_INCLUDES := -I${MTK_PLAT}/common/                            \
                  -I${MTK_PLAT_SOC}/drivers/mcdi/                  \
                  -I${MTK_PLAT_SOC}/drivers/pmic/                  \
                  -I${MTK_PLAT_SOC}/drivers/ptp3/                  \
-                 -I${MTK_PLAT_SOC}/drivers/rtc/                   \
                  -I${MTK_PLAT_SOC}/drivers/spmc/
 
 GICV3_SUPPORT_GIC600        :=      1
@@ -46,6 +46,7 @@ BL31_SOURCES    += common/desc_image_load.c                              \
                    ${MTK_PLAT}/common/drivers/gpio/mtgpio_common.c       \
                    ${MTK_PLAT}/common/drivers/pmic_wrap/pmic_wrap_init_v2.c \
                    ${MTK_PLAT}/common/drivers/rtc/rtc_common.c           \
+                   ${MTK_PLAT}/common/drivers/rtc/rtc_mt6359p.c          \
                    ${MTK_PLAT}/common/drivers/timer/mt_timer.c           \
                    ${MTK_PLAT}/common/drivers/uart/uart.c                \
                    ${MTK_PLAT}/common/lpm/mt_lp_rm.c                     \
@@ -57,7 +58,6 @@ BL31_SOURCES    += common/desc_image_load.c                              \
                    ${MTK_PLAT_SOC}/aarch64/plat_helpers.S                \
                    ${MTK_PLAT_SOC}/bl31_plat_setup.c                     \
                    ${MTK_PLAT_SOC}/drivers/pmic/pmic.c                   \
-                   ${MTK_PLAT_SOC}/drivers/rtc/rtc.c                     \
                    ${MTK_PLAT_SOC}/plat_pm.c                             \
                    ${MTK_PLAT_SOC}/plat_topology.c                       \
                    ${MTK_PLAT_SOC}/plat_sip_calls.c                      \

plat/mediatek/mt8195/include/rtc.h

+/*
+ * Copyright (c) 2021, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef RTC_H
+#define RTC_H
+
+#include <rtc_mt6359p.h>
+
+#endif  /* RTC_H */

plat/mediatek/mt8195/plat_pm.c

@@ -20,6 +20,7 @@
 #include <plat_params.h>
 #include <plat_pm.h>
 #include <pmic.h>
+#include <rtc.h>
 
 /*
  * Cluster state request:
@@ -355,6 +356,7 @@ static void __dead2 plat_mtk_system_off(void)
 {
 	INFO("MTK System Off\n");
 
+	rtc_power_off_sequence();
 	pmic_power_off();
 
 	wfi();

plat/mediatek/mt8195/platform.mk

@@ -10,6 +10,7 @@ MTK_PLAT_SOC := ${MTK_PLAT}/${PLAT}
 PLAT_INCLUDES := -I${MTK_PLAT}/common/                            \
                  -I${MTK_PLAT}/common/drivers/gic600/             \
                  -I${MTK_PLAT}/common/drivers/gpio/               \
+                 -I${MTK_PLAT}/common/drivers/rtc/                \
                  -I${MTK_PLAT}/common/drivers/timer/              \
                  -I${MTK_PLAT_SOC}/drivers/gpio/                  \
                  -I${MTK_PLAT_SOC}/drivers/mcdi/                  \
@@ -39,6 +40,8 @@ BL31_SOURCES += common/desc_image_load.c                              \
                 ${MTK_PLAT}/common/drivers/gic600/mt_gic_v3.c         \
                 ${MTK_PLAT}/common/drivers/gpio/mtgpio_common.c       \
                 ${MTK_PLAT}/common/drivers/pmic_wrap/pmic_wrap_init_v2.c \
+                ${MTK_PLAT}/common/drivers/rtc/rtc_common.c           \
+                ${MTK_PLAT}/common/drivers/rtc/rtc_mt6359p.c          \
                 ${MTK_PLAT}/common/drivers/timer/mt_timer.c           \
                 ${MTK_PLAT}/common/mtk_cirq.c                         \
                 ${MTK_PLAT}/common/mtk_plat_common.c                  \