dt: bcm968580xref: enable nand controller

Enable the nand controller in the device tree
of the board bcm968580xref.

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
diff --git a/arch/arm/dts/bcm968580xref.dts b/arch/arm/dts/bcm968580xref.dts
index 15febb0..8ef9338 100644
--- a/arch/arm/dts/bcm968580xref.dts
+++ b/arch/arm/dts/bcm968580xref.dts
@@ -61,3 +61,18 @@
 &gpio7 {
 	status = "okay";
 };
+
+&nand {
+	status = "okay";
+	write-protect = <0>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	nandcs@0 {
+		compatible = "brcm,nandcs";
+		reg = <0>;
+		nand-ecc-strength = <4>;
+		nand-ecc-step-size = <512>;
+		brcm,nand-oob-sector-size = <16>;
+	};
+};