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diff --git a/Documentation/devicetree/bindings/mfd/atmel-matrix.txt b/Documentation/devicetree/bindings/mfd/atmel-matrix.txt
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+* Device tree bindings for Atmel Bus Matrix
+
+The Bus Matrix registers are used to configure Atmel SoCs internal bus
+behavior (master/slave priorities, undefined burst length type, ...)
+
+Required properties:
+- compatible:           Should be one of the following
+                        "atmel,at91sam9260-matrix", "syscon"
+                        "atmel,at91sam9261-matrix", "syscon"
+                        "atmel,at91sam9263-matrix", "syscon"
+                        "atmel,at91sam9rl-matrix", "syscon"
+                        "atmel,at91sam9g45-matrix", "syscon"
+                        "atmel,at91sam9n12-matrix", "syscon"
+                        "atmel,at91sam9x5-matrix", "syscon"
+                        "atmel,sama5d3-matrix", "syscon"
+- reg:                  Contains offset/length value of the Bus Matrix
+                        memory region.
+
+Example:
+
+matrix: matrix@ffffec00 {
+        compatible = "atmel,sama5d3-matrix", "syscon";
+        reg = <0xffffec00 0x200>;
+};