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diff --git a/Documentation/devicetree/bindings/powerpc/4xx/reboot.txt b/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 overidden. 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 */
+                };