feat(mt8188): add RTC support

TEST=build pass.
BUG=b:233720142

Signed-off-by: Song Fan <ot_song.fan@mediatek.corp-partner.google.com>
Change-Id: I348eff0f53341593f74a63780e2e8298cbc3ec88

plat/mediatek/drivers/rtc/mt8188/rtc.h

@@ -0,0 +1,12 @@
+/*
+ * Copyright (c) 2022, 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/drivers/rtc/rules.mk

@@ -0,0 +1,20 @@
+#
+# Copyright (c) 2022, MediaTek Inc. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+LOCAL_DIR := $(call GET_LOCAL_DIR)
+
+MODULE := rtc
+
+LOCAL_SRCS-y := ${LOCAL_DIR}/rtc_common.c
+
+ifeq (${USE_RTC_MT6359P}, 1)
+LOCAL_SRCS-y += ${LOCAL_DIR}/rtc_mt6359p.c
+PLAT_INCLUDES += -I${LOCAL_DIR}
+endif
+
+PLAT_INCLUDES += -I${LOCAL_DIR}/${MTK_SOC}
+
+$(eval $(call MAKE_MODULE,$(MODULE),$(LOCAL_SRCS-y),$(MTK_BL)))

plat/mediatek/mt8188/plat_config.mk

@@ -17,6 +17,7 @@ GICV3_SUPPORT_GIC600 := 1
 #
 PLAT_EXTRA_RODATA_INCLUDES := 1
 USE_PMIC_WRAP_INIT_V2 := 1
+USE_RTC_MT6359P := 1
 
 # Configs for A78 and A55
 CTX_INCLUDE_AARCH32_REGS := 0

plat/mediatek/mt8188/platform.mk

@@ -28,6 +28,7 @@ MODULES-y += $(MTK_PLAT)/drivers/gic600
 MODULES-y += $(MTK_PLAT)/drivers/iommu
 MODULES-y += $(MTK_PLAT)/drivers/pmic
 MODULES-y += $(MTK_PLAT)/drivers/pmic_wrap
+MODULES-y += $(MTK_PLAT)/drivers/rtc
 MODULES-y += $(MTK_PLAT)/drivers/timer
 
 PLAT_BL_COMMON_SOURCES := common/desc_image_load.c \