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/x86/include/asm/ist.h

@@ -0,0 +1,26 @@
+#ifndef _ASM_X86_IST_H
+#define _ASM_X86_IST_H
+
+/*
+ * Include file for the interface to IST BIOS
+ * Copyright 2002 Andy Grover <andrew.grover@intel.com>
+ *
+  * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+
+#include <linux/types.h>
+
+struct ist_info {
+	__u32 signature;
+	__u32 command;
+	__u32 event;
+	__u32 perf_level;
+};
+
+#ifdef __KERNEL__
+
+extern struct ist_info ist_info;
+
+#endif	/* __KERNEL__ */
+#endif /* _ASM_X86_IST_H */