avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

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

@@ -0,0 +1,15 @@
+/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>;
+	};
+} ;