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/arm/dts/uniphier-ph1-sld8-ref.dts

@@ -0,0 +1,82 @@
+/*
+ * Device Tree Source for UniPhier PH1-sLD8 Reference Board
+ *
+ * Copyright (C) 2014-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+	X11
+ */
+
+/dts-v1/;
+/include/ "uniphier-ph1-sld8.dtsi"
+/include/ "uniphier-ref-daughter.dtsi"
+/include/ "uniphier-support-card.dtsi"
+
+/ {
+	model = "UniPhier PH1-sLD8 Reference Board";
+	compatible = "socionext,ph1-sld8-ref", "socionext,ph1-sld8";
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x20000000>;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	aliases {
+		serial0 = &serial0;
+		serial1 = &serial1;
+		serial2 = &serial2;
+		serial3 = &serial3;
+		i2c0 = &i2c0;
+		i2c1 = &i2c1;
+		i2c2 = &i2c2;
+		i2c3 = &i2c3;
+	};
+};
+
+&ethsc {
+	interrupts = <0 48 4>;
+};
+
+&serial0 {
+	status = "okay";
+};
+
+&serial2 {
+	status = "okay";
+};
+
+&serial3 {
+	status = "okay";
+};
+
+&i2c0 {
+	status = "okay";
+};
+
+&sd {
+	status = "okay";
+};
+
+&usb0 {
+	status = "okay";
+};
+
+&usb1 {
+	status = "okay";
+};
+
+&usb2 {
+	status = "okay";
+};
+
+/* for U-Boot only */
+&serial0 {
+	u-boot,dm-pre-reloc;
+};
+
+&pinctrl_uart0 {
+	u-boot,dm-pre-reloc;
+};