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/test/ut.c

@@ -0,0 +1,35 @@
+/*
+ * Simple unit test library
+ *
+ * Copyright (c) 2013 Google, Inc
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <test/test.h>
+#include <test/ut.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void ut_fail(struct unit_test_state *uts, const char *fname, int line,
+	     const char *func, const char *cond)
+{
+	gd->flags &= ~(GD_FLG_SILENT | GD_FLG_RECORD);
+	printf("%s:%d, %s(): %s\n", fname, line, func, cond);
+	uts->fail_count++;
+}
+
+void ut_failf(struct unit_test_state *uts, const char *fname, int line,
+	      const char *func, const char *cond, const char *fmt, ...)
+{
+	va_list args;
+
+	gd->flags &= ~(GD_FLG_SILENT | GD_FLG_RECORD);
+	printf("%s:%d, %s(): %s: ", fname, line, func, cond);
+	va_start(args, fmt);
+	vprintf(fmt, args);
+	va_end(args);
+	putc('\n');
+	uts->fail_count++;
+}