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/arm/include/asm/arch-tegra/gpu.h

@@ -0,0 +1,36 @@
+/*
+ *  (C) Copyright 2015
+ *  NVIDIA Corporation <www.nvidia.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARCH_TEGRA_GPU_H
+#define __ASM_ARCH_TEGRA_GPU_H
+
+#if defined(CONFIG_TEGRA_GPU)
+
+void tegra_gpu_config(void);
+
+#else /* CONFIG_TEGRA_GPU */
+
+static inline void tegra_gpu_config(void)
+{
+}
+
+#endif /* CONFIG_TEGRA_GPU */
+
+#if defined(CONFIG_OF_LIBFDT)
+
+int tegra_gpu_enable_node(void *blob, const char *gpupath);
+
+#else /* CONFIG_OF_LIBFDT */
+
+static inline int tegra_gpu_enable_node(void *blob, const char *compat)
+{
+	return 0;
+}
+
+#endif /* CONFIG_OF_LIBFDT */
+
+#endif	/* __ASM_ARCH_TEGRA_GPU_H */