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diff --git a/kernel/Documentation/devicetree/bindings/hwrng/brcm,iproc-rng200.txt b/kernel/Documentation/devicetree/bindings/hwrng/brcm,iproc-rng200.txt
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+++ b/kernel/Documentation/devicetree/bindings/hwrng/brcm,iproc-rng200.txt
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+HWRNG support for the iproc-rng200 driver
+
+Required properties:
+- compatible : "brcm,iproc-rng200"
+- reg : base address and size of control register block
+
+Example:
+
+rng {
+ compatible = "brcm,iproc-rng200";
+ reg = <0x18032000 0x28>;
+};