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diff --git a/Documentation/devicetree/bindings/timer/snps,archs-rtc.txt b/Documentation/devicetree/bindings/timer/snps,archs-rtc.txt
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+++ b/Documentation/devicetree/bindings/timer/snps,archs-rtc.txt
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+Synopsys ARC Free Running 64-bit Local Timer for ARC HS CPUs
+- clocksource provider for UP SoC
+
+Required properties:
+
+- compatible : should be "snps,archs-rtc"
+- clocks     : phandle to the source clock
+
+Example:
+
+	rtc {
+		compatible = "snps,arc-rtc";
+		clocks = <&core_clk>;
+	};