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/mach-socfpga/include/mach/scu.h

@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2014 Marek Vasut <marex@denx.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __SOCFPGA_SCU_H__
+#define __SOCFPGA_SCU_H__
+
+struct scu_registers {
+	u32	ctrl;			/* 0x00 */
+	u32	cfg;
+	u32	cpsr;
+	u32	iassr;
+	u32	_pad_0x10_0x3c[12];	/* 0x10 */
+	u32	fsar;			/* 0x40 */
+	u32	fear;
+	u32	_pad_0x48_0x50[2];
+	u32	acr;			/* 0x54 */
+	u32	sacr;
+};
+
+#endif	/* __SOCFPGA_SCU_H__ */