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/power/power_chrg.h

@@ -0,0 +1,27 @@
+/*
+ *  Copyright (C) 2012 Samsung Electronics
+ *  Lukasz Majewski <l.majewski@samsung.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __POWER_CHARGER_H_
+#define __POWER_CHARGER_H_
+
+/* Type of available chargers */
+enum {
+	CHARGER_NO = 0,
+	CHARGER_TA,
+	CHARGER_USB,
+	CHARGER_TA_500,
+	CHARGER_UNKNOWN,
+};
+
+enum {
+	UNKNOWN,
+	EXT_SOURCE,
+	CHARGE,
+	NORMAL,
+};
+
+#endif /* __POWER_CHARGER_H_ */