arm: mvebu: PCIe Device Tree informations for Armada XP GP

The Marvell Armada XP GP board has 3 physical full-size PCIe slots, so
we enable the corresponding PCIe interfaces in the Device Tree.
Signed-off-by: NThomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

arch/arm/boot/dts/armada-xp-gp.dts

@@ -138,5 +138,26 @@
 				bank-width = <2>;
 			};
 		};
+
+		pcie-controller {
+			status = "okay";
+
+			/*
+			 * The 3 slots are physically present as
+			 * standard PCIe slots on the board.
+			 */
+			pcie@1,0 {
+				/* Port 0, Lane 0 */
+				status = "okay";
+			};
+			pcie@9,0 {
+				/* Port 2, Lane 0 */
+				status = "okay";
+			};
+			pcie@10,0 {
+				/* Port 3, Lane 0 */
+				status = "okay";
+			};
+		};
 	};
 };