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/m68k/include/asm/ptrace.h

@@ -0,0 +1,43 @@
+/*
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _M68K_PTRACE_H
+#define _M68K_PTRACE_H
+
+/*
+ * This struct defines the way the registers are stored on the
+ * kernel stack during an exception.
+ */
+#ifndef __ASSEMBLY__
+
+struct pt_regs {
+	ulong d0;
+	ulong d1;
+	ulong d2;
+	ulong d3;
+	ulong d4;
+	ulong d5;
+	ulong d6;
+	ulong d7;
+	ulong a0;
+	ulong a1;
+	ulong a2;
+	ulong a3;
+	ulong a4;
+	ulong a5;
+	ulong a6;
+#if defined(__M68K__)
+	unsigned format:4;	/* frame format specifier */
+	unsigned vector:12;	/* vector offset */
+	unsigned short sr;
+	unsigned long pc;
+#else
+	unsigned short sr;
+	unsigned long pc;
+#endif
+};
+
+#endif				/* #ifndef __ASSEMBLY__ */
+
+#endif				/* #ifndef _M68K_PTRACE_H */