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/board/dbau1x00/Kconfig

@@ -0,0 +1,46 @@
+if TARGET_DBAU1X00
+
+config SYS_BOARD
+	default "dbau1x00"
+
+config SYS_SOC
+	default "au1x00"
+
+config SYS_CONFIG_NAME
+	default "dbau1x00"
+
+config SYS_TEXT_BASE
+	default 0xbfc00000
+
+config SYS_DCACHE_SIZE
+	default 16384
+
+config SYS_DCACHE_LINE_SIZE
+	default 32
+
+config SYS_ICACHE_SIZE
+	default 16384
+
+config SYS_ICACHE_LINE_SIZE
+	default 32
+
+menu "dbau1x00 board options"
+
+choice
+	prompt "Select au1x00 SoC type"
+	optional
+
+config DBAU1100
+	bool "Select AU1100"
+
+config DBAU1500
+	bool "Select AU1500"
+
+config DBAU1550
+	bool "Select AU1550"
+
+endchoice
+
+endmenu
+
+endif