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diff --git a/kernel/Documentation/devicetree/bindings/powerpc/4xx/reboot.txt b/kernel/Documentation/devicetree/bindings/powerpc/4xx/reboot.txt
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index 000000000..5bc635513
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+++ b/kernel/Documentation/devicetree/bindings/powerpc/4xx/reboot.txt
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+Reboot property to control system reboot on PPC4xx systems:
+
+By setting "reset_type" to one of the following values, the default
+software reset mechanism may be overridden. Here the possible values of
+"reset_type":
+
+      1 - PPC4xx core reset
+      2 - PPC4xx chip reset
+      3 - PPC4xx system reset (default)
+
+Example:
+
+		cpu@0 {
+			device_type = "cpu";
+			model = "PowerPC,440SPe";
+			...
+			reset-type = <2>;	/* Use chip-reset */
+		};