[Feature][T8TSK-40][TCAM_T800_SW_0244][RTC] External RTC to set clock synchronization

Change-Id: Ic6ffb1ca4a32d9f6f33630338a8c32c98ed0fa99
diff --git a/src/kernel/linux/v4.19/arch/arm64/boot/dts/mediatek/auto2735evb.dts b/src/kernel/linux/v4.19/arch/arm64/boot/dts/mediatek/auto2735evb.dts
index 33c9662..7dc8b35 100755
--- a/src/kernel/linux/v4.19/arch/arm64/boot/dts/mediatek/auto2735evb.dts
+++ b/src/kernel/linux/v4.19/arch/arm64/boot/dts/mediatek/auto2735evb.dts
@@ -219,6 +219,13 @@
 	};
 //tianyan@2021.7.16 modify for compatible codec tlv320aic3104 end
 
+//dongyu@2022.7.12 modify for RTC/PCF85063 start
+        rtc@51 {
+                compatible = "nxp,pcf85063";
+                reg = <0x51>;
+                status = "okay";
+        };
+//dongyu@2022.7.12 modify for RTC/PCF85063 end
 };
 
 &i2c1 {
@@ -247,6 +254,7 @@
 		status = "okay";
 	};
 	*/
+	
 };
 
 &i2c2 {
diff --git a/src/kernel/linux/v4.19/arch/arm64/configs/auto2735evb_defconfig b/src/kernel/linux/v4.19/arch/arm64/configs/auto2735evb_defconfig
index 5c37b01..cb84b4f 100644
--- a/src/kernel/linux/v4.19/arch/arm64/configs/auto2735evb_defconfig
+++ b/src/kernel/linux/v4.19/arch/arm64/configs/auto2735evb_defconfig
@@ -803,3 +803,7 @@
 # CONFIG_MMSTAT_TRACER is not set
 CONFIG_MEMTEST=y
 CONFIG_DEBUG_ALIGN_RODATA=y
+
+#dongyu@2022.7.12 modify for RTC/PCF85063 start
+CONFIG_RTC_DRV_PCF85063=y
+#dongyu@2022.7.12 modify for RTC/PCF85063 end