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/include/lynxkdi.h

@@ -0,0 +1,25 @@
+/*
+ * (C) Copyright 2003
+ * Orbacom Systems, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __LYNXKDI_H__
+#define __LYNXKDI_H__
+
+
+/* Boot parameter struct passed to kernel
+ */
+typedef struct lynxos_bootparms_t {
+	uint8_t		rsvd1[2];	/* Reserved			*/
+	uint8_t		ethaddr[6];	/* Ethernet address		*/
+	uint16_t	flags;		/* Boot flags			*/
+	uint32_t	rate;		/* System frequency		*/
+	uint32_t	clock_ref;	/* Time reference		*/
+	uint32_t	dramsz;		/* DRAM size			*/
+	uint32_t	rsvd2;		/* Reserved			*/
+} lynxos_bootparms_t;
+
+
+#endif	/* __LYNXKDI_H__ */