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/post/lib_powerpc/fpu/20010114-2.c

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+/*
+ * This file is originally a part of the GCC testsuite.
+ */
+
+#include <common.h>
+
+#include <post.h>
+
+GNU_FPOST_ATTR
+
+#if CONFIG_POST & CONFIG_SYS_POST_FPU
+
+static float rintf (float x)
+{
+	volatile float TWO23 = 8388608.0;
+
+	if (__builtin_fabs (x) < TWO23)
+	{
+		if (x > 0.0)
+		{
+			x += TWO23;
+			x -= TWO23;
+		}
+		else if (x < 0.0)
+		{
+			x = TWO23 - x;
+			x = -(x - TWO23);
+		}
+	}
+
+	return x;
+}
+
+int fpu_post_test_math2 (void)
+{
+	if (rintf (-1.5) != -2.0) {
+		post_log ("Error in FPU math2 test\n");
+		return -1;
+	}
+	return 0;
+}
+
+#endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */