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/imgtec/malta/flash-malta-boot.tcl

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+#
+# Copyright (C) 2013 Imagination Technologies
+#
+# Programs a MIPS Malta boot flash with a flat binary image.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+proc flash-boot { binfile } {
+  puts "flash monitor binary $binfile"
+  config Coherent on
+  config CoherencyDuringLoad on
+
+  if {[endian]=="big"} {
+    puts "CPU in BE mode"
+    flash device sharp_16x32_be;
+  } else {
+    puts "CPU in LE mode"
+    flash device sharp_16x32;
+  }
+
+  flash clear all;
+  flash set 0xBE000000..0xBE0FFFFF
+  flash erase sector 0xbe000000;
+  flash erase sector 0xbe020000;
+  flash erase sector 0xbe040000;
+  flash erase sector 0xbe060000;
+  flash erase sector 0xbe080000;
+  flash erase sector 0xbe0a0000;
+  flash erase sector 0xbe0c0000;
+  flash erase sector 0xbe0e0000;
+  puts "finished erasing boot flash";
+
+  puts "programming flash, please be patient"
+  load bin 0xbe000000 $binfile size4
+
+  flash clear all
+  config CoherencyDuringLoad off
+  puts "finished programming boot flash";
+}