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diff --git a/src/arm64/marvell/armada-8020.dtsi b/src/arm64/marvell/armada-8020.dtsi
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+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2016 Marvell Technology Group Ltd.
+ *
+ * Device Tree file for the Armada 8020 SoC, made of an AP806 Dual and
+ * two CP110.
+ */
+
+#include "armada-ap806-dual.dtsi"
+#include "armada-80x0.dtsi"
+
+/ {
+ model = "Marvell Armada 8020";
+ 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.
+ */
+
+&cp0_rtc {
+ status = "disabled";
+};