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/axp_pmic.h

@@ -0,0 +1,42 @@
+/*
+ * (C) Copyright 2015 Hans de Goede <hdegoede@redhat.com>
+ *
+ * X-Powers AX Power Management IC support header
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#ifndef _AXP_PMIC_H_
+
+#ifdef CONFIG_AXP152_POWER
+#include <axp152.h>
+#endif
+#ifdef CONFIG_AXP209_POWER
+#include <axp209.h>
+#endif
+#ifdef CONFIG_AXP221_POWER
+#include <axp221.h>
+#endif
+#ifdef CONFIG_AXP809_POWER
+#include <axp809.h>
+#endif
+#ifdef CONFIG_AXP818_POWER
+#include <axp818.h>
+#endif
+
+int axp_set_dcdc1(unsigned int mvolt);
+int axp_set_dcdc2(unsigned int mvolt);
+int axp_set_dcdc3(unsigned int mvolt);
+int axp_set_dcdc4(unsigned int mvolt);
+int axp_set_dcdc5(unsigned int mvolt);
+int axp_set_aldo1(unsigned int mvolt);
+int axp_set_aldo2(unsigned int mvolt);
+int axp_set_aldo3(unsigned int mvolt);
+int axp_set_aldo4(unsigned int mvolt);
+int axp_set_dldo(int dldo_num, unsigned int mvolt);
+int axp_set_eldo(int eldo_num, unsigned int mvolt);
+int axp_set_fldo(int fldo_num, unsigned int mvolt);
+int axp_set_sw(bool on);
+int axp_init(void);
+int axp_get_sid(unsigned int *sid);
+
+#endif