diff --git a/arch/arm64/boot/dts/marvell/armada-8020.dtsi b/arch/arm64/boot/dts/marvell/armada-8020.dtsi
index 048e5cf5160e9740896e3057b08120163cc78e1c..7c08f1f28d9e05ab95c388b6aec41193970f52c1 100644
--- a/arch/arm64/boot/dts/marvell/armada-8020.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-8020.dtsi
@@ -54,3 +54,13 @@
 	compatible = "marvell,armada8020", "marvell,armada-ap806-dual",
 		     "marvell,armada-ap806";
 };
+
+/* The RTC requires external oscillator. But on Aramda 80x0, the RTC clock
+ * in CP master is not connected (by package) to the oscillator. So
+ * disable it. However, the RTC clock in CP slave is connected to the
+ * oscillator so this one is let enabled.
+ */
+
+&cpm_rtc {
+	status = "disabled";
+};
diff --git a/arch/arm64/boot/dts/marvell/armada-8040.dtsi b/arch/arm64/boot/dts/marvell/armada-8040.dtsi
index 9c1b28c476838fc20009b35740d825627b0ff5c3..33813a75bc309032cff84b51f97269c1c15abddc 100644
--- a/arch/arm64/boot/dts/marvell/armada-8040.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-8040.dtsi
@@ -54,3 +54,12 @@
 	compatible = "marvell,armada8040", "marvell,armada-ap806-quad",
 		     "marvell,armada-ap806";
 };
+
+/* The RTC requires external oscillator. But on Aramda 80x0, the RTC clock
+ * in CP master is not connected (by package) to the oscillator. So
+ * disable it. However, the RTC clock in CP slave is connected to the
+ * oscillator so this one is let enabled.
+ */
+&cpm_rtc {
+	status = "disabled";
+};
diff --git a/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi b/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
index 3a99c36433d6f9bb0c82c13fd68aa10dfb0f037a..d12741414009411526416d5e5e71df135757f42b 100644
--- a/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
@@ -79,6 +79,13 @@
 					"cpm-usb3dev", "cpm-eip150", "cpm-eip197";
 			};
 
+			cpm_rtc: rtc@284000 {
+				compatible = "marvell,armada-8k-rtc";
+				reg = <0x284000 0x20>, <0x284080 0x24>;
+				reg-names = "rtc", "rtc-soc";
+				interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
+			};
+
 			cpm_sata0: sata@540000 {
 				compatible = "marvell,armada-8k-ahci",
 					     "generic-ahci";
diff --git a/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi b/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
index 9e09c4d3b6bd8412deb29353a6d67a9fbe35beb2..d51eb2db6df74328d37a74f5c2529fb06a26ca14 100644
--- a/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
@@ -59,6 +59,13 @@
 			interrupt-parent = <&gic>;
 			ranges = <0x0 0x0 0xf4000000 0x2000000>;
 
+			cps_rtc: rtc@284000 {
+				compatible = "marvell,armada-8k-rtc";
+				reg = <0x284000 0x20>, <0x284080 0x24>;
+				reg-names = "rtc", "rtc-soc";
+				interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
+			};
+
 			cps_syscon0: system-controller@440000 {
 				compatible = "marvell,cp110-system-controller0",
 					     "syscon";