ppc: dts: Add device tree for xilix-ppc4xx-generic

Add device tree example file for xilinx-ppc440-generic and
xilinx-ppc405-generic

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>

arch/powerpc/dts/Makefile

@@ -3,6 +3,8 @@
 #
 
 dtb-$(CONFIG_TARGET_CANYONLANDS) += arches.dtb canyonlands.dtb glacier.dtb
+dtb-$(CONFIG_TARGET_XILINX_PPC440_GENERIC) += xilinx-ppc440-generic.dtb
+dtb-$(CONFIG_TARGET_XILINX_PPC405_GENERIC) += xilinx-ppc405-generic.dtb
 
 targets += $(dtb-y)
 

arch/powerpc/dts/xilinx-ppc405-generic.dts

+/dts-v1/;
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	aliases {
+		console = &uart0;
+	};
+
+	uart0: serial@84000000 {
+		compatible = "xlnx,xps-uartlite-1.00.a";
+		interrupts = <0 0>;
+		reg = <0x84000000 0x10000>;
+	};
+} ;

arch/powerpc/dts/xilinx-ppc440-generic.dts

+/dts-v1/;
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	aliases {
+		console = &uart0;
+	};
+
+	uart0: serial@8b000000 {
+		compatible = "xlnx,xps-uartlite-1.00.a";
+		interrupts = <0 0>;
+		reg = <0x8b000000 0x10000>;
+	};
+} ;