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diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm23550-cpu-method.txt b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm23550-cpu-method.txt
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+Broadcom Kona Family CPU Enable Method
+--------------------------------------
+This binding defines the enable method used for starting secondary
+CPUs in the following Broadcom SoCs:
+  BCM23550
+
+The enable method is specified by defining the following required
+properties in the "cpu" device tree node:
+  - enable-method = "brcm,bcm23550";
+  - secondary-boot-reg = <...>;
+
+The secondary-boot-reg property is a u32 value that specifies the
+physical address of the register used to request the ROM holding pen
+code release a secondary CPU.  The value written to the register is
+formed by encoding the target CPU id into the low bits of the
+physical start address it should jump to.
+
+Example:
+        cpus {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                cpu0: cpu@0 {
+                        device_type = "cpu";
+                        compatible = "arm,cortex-a9";
+                        reg = <0>;
+                };
+
+                cpu1: cpu@1 {
+                        device_type = "cpu";
+                        compatible = "arm,cortex-a9";
+                        reg = <1>;
+                        enable-method = "brcm,bcm23550";
+                        secondary-boot-reg = <0x3500417c>;
+                };
+        };