fsl_soc: add support for "fsl, soc" compatible matching

index 7b4e8a7..be41a5c 100644
@@ -32,7 +32,7 @@ Table of Contents
       c) The /cpus/* nodes
       d) the /memory node(s)
       e) The /chosen node
-      f) the /soc<SOCname> node
+      f) the /soc node
 
   IV - "dtc", the device tree compiler
 

@@ -961,20 +961,17 @@ compatibility.
   under /chosen called interrupt-controller which had a phandle value
   that pointed to the main interrupt controller)
 
-  f) the /soc<SOCname> node
+  f) the /soc node
 
   This node is used to represent a system-on-a-chip (SOC) and must be
   present if the processor is a SOC. The top-level soc node contains
-  information that is global to all devices on the SOC. The node name
-  should contain a unit address for the SOC, which is the base address
-  of the memory-mapped register set for the SOC. The name of an soc
-  node should start with "soc", and the remainder of the name should
-  represent the part number for the soc.  For example, the MPC8540's
-  soc node would be called "soc8540".
+  information that is global to all devices on the SOC. The name of an
+  soc node should be "soc".
 
   Required properties:
 
-    - device_type : Should be "soc"
+    - compatible : Should be "<cpu>-<immr or ccsr>", "fsl,<immr or ccsr>",
+      "fsl,soc", "simple-bus".
     - ranges : Should be defined as specified in 1) to describe the
       translation of SOC addresses for memory mapped SOC registers.
     - bus-frequency: Contains the bus frequency for the SOC node.

@@ -2913,11 +2910,12 @@ Note that the #address-cells and #size-cells for the SoC node
 in this example have been explicitly listed; these are likely
 not necessary as they are usually the same as the root node.
 
-	soc8540@e0000000 {
+	soc@e0000000 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		#interrupt-cells = <2>;
-		device_type = "soc";
+		compatible = "fsl,mpc8540-ccsr", "fsl,ccsr", "fsl,soc",
+			     "simple-bus";
 		ranges = <00000000 e0000000 00100000>
 		reg = <e0000000 00003000>;
 		bus-frequency = <0>;