devicetree: enable v2.5's i2c0 and new RTC

Author: CFSworks

tp2bmc/board/tp2bmc/linux_defconfig

@@ -179,6 +179,8 @@ CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
 CONFIG_LEDS_GPIO=y
 CONFIG_RTC_CLASS=y
+CONFIG_RTC_HCTOSYS_DEVICE="rtc1"
+CONFIG_RTC_DRV_PCF8563=y
 CONFIG_DMADEVICES=y
 CONFIG_DMA_SUN6I=y
 # CONFIG_VIRTIO_MENU is not set

tp2bmc/board/tp2bmc/sun8i-t113s-turing-pi2-v2.5.dts

@@ -156,7 +156,27 @@
 #endif
 };
 
+&i2c0 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pg_pins>;
+
+	clock-frequency = <400000>;
+
+	rtc@51 {
+		compatible = "nxp,pcf8563";
+		reg = <0x51>;
+		#clock-cells = <0>;
+	};
+};
+
 &pio {
+	i2c0_pg_pins: i2c0-pg-pins {
+		pins = "PG12", "PG13";
+		function = "i2c0";
+	};
+
 	/omit-if-no-ref/
 	pwm5_pd_pin: pwm5-pd-pin {
 		pins = "PD21";