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/cpu/armv7/am33xx/Makefile

@@ -0,0 +1,22 @@
+#
+# Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-$(CONFIG_AM33XX)	+= clock_am33xx.o
+obj-$(CONFIG_TI814X)	+= clock_ti814x.o
+obj-$(CONFIG_AM43XX)	+= clock_am43xx.o
+
+ifneq ($(CONFIG_AM43XX)$(CONFIG_AM33XX),)
+obj-y	+= clock.o
+endif
+
+obj-$(CONFIG_TI816X)	+= clock_ti816x.o
+obj-y	+= sys_info.o
+obj-y	+= ddr.o
+obj-y	+= emif4.o
+obj-y	+= board.o
+obj-y	+= mux.o
+
+obj-$(CONFIG_CLOCK_SYNTHESIZER)	+= clk_synthesizer.o