diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index 8d024c10d7cb..837a03dee875 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -139,15 +139,7 @@ osc32k: osc32k_clk {
 		#clock-cells = <0>;
 		compatible = "fixed-clock";
 		clock-frequency = <32768>;
-		clock-output-names = "osc32k";
-	};
-
-	iosc: internal-osc-clk {
-		#clock-cells = <0>;
-		compatible = "fixed-clock";
-		clock-frequency = <16000000>;
-		clock-accuracy = <300000000>;
-		clock-output-names = "iosc";
+		clock-output-names = "ext-osc32k";
 	};
 
 	psci {
@@ -539,7 +531,7 @@ ohci1: usb@1c1b400 {
 		ccu: clock@1c20000 {
 			compatible = "allwinner,sun50i-a64-ccu";
 			reg = <0x01c20000 0x400>;
-			clocks = <&osc24M>, <&osc32k>;
+			clocks = <&osc24M>, <&rtc 0>;
 			clock-names = "hosc", "losc";
 			#clock-cells = <1>;
 			#reset-cells = <1>;
@@ -969,11 +961,12 @@ hdmi_phy: hdmi-phy@1ef0000 {
 		};
 
 		rtc: rtc@1f00000 {
-			compatible = "allwinner,sun6i-a31-rtc";
-			reg = <0x01f00000 0x54>;
+			compatible = "allwinner,sun50i-a64-rtc",
+				     "allwinner,sun8i-h3-rtc";
+			reg = <0x01f00000 0x400>;
 			interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
-			clock-output-names = "rtc-osc32k", "rtc-osc32k-out";
+			clock-output-names = "osc32k", "osc32k-out", "iosc";
 			clocks = <&osc32k>;
 			#clock-cells = <1>;
 		};
@@ -990,8 +983,7 @@ r_intc: interrupt-controller@1f00c00 {
 		r_ccu: clock@1f01400 {
 			compatible = "allwinner,sun50i-a64-r-ccu";
 			reg = <0x01f01400 0x100>;
-			clocks = <&osc24M>, <&osc32k>, <&iosc>,
-				 <&ccu 11>;
+			clocks = <&osc24M>, <&rtc 0>, <&rtc 2>, <&ccu 11>;
 			clock-names = "hosc", "losc", "iosc", "pll-periph";
 			#clock-cells = <1>;
 			#reset-cells = <1>;