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/include/configs/sun8i.h

@@ -0,0 +1,47 @@
+/*
+ * (C) Copyright 2014 Chen-Yu Tsai <wens@csie.org>
+ *
+ * Configuration settings for the Allwinner A23 (sun8i) CPU
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/*
+ * A23 specific configuration
+ */
+
+#ifdef CONFIG_USB_EHCI
+#define CONFIG_USB_EHCI_SUNXI
+#define CONFIG_USB_MAX_CONTROLLER_COUNT	1
+#endif
+
+#ifdef CONFIG_MACH_SUN8I_H3
+	#define CONFIG_SUNXI_USB_PHYS	4
+#elif defined CONFIG_MACH_SUN8I_A83T
+	#define CONFIG_SUNXI_USB_PHYS	3
+#else
+	#define CONFIG_SUNXI_USB_PHYS	2
+#endif
+
+#ifndef CONFIG_MACH_SUN8I_A83T
+#define CONFIG_ARMV7_PSCI		1
+#if defined(CONFIG_MACH_SUN8I_A23)
+#define CONFIG_ARMV7_PSCI_NR_CPUS	2
+#elif defined(CONFIG_MACH_SUN8I_A33)
+#define CONFIG_ARMV7_PSCI_NR_CPUS	4
+#elif defined(CONFIG_MACH_SUN8I_H3)
+#define CONFIG_ARMV7_PSCI_NR_CPUS	4
+#else
+#error Unsupported sun8i variant
+#endif
+#endif
+
+/*
+ * Include common sunxi configuration where most the settings are
+ */
+#include <configs/sunxi-common.h>
+
+#endif /* __CONFIG_H */