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/cmd/fs_uuid.c

@@ -0,0 +1,26 @@
+/*
+ * cmd_fs_uuid.c -- fsuuid command
+ *
+ * Copyright (C) 2014, Bachmann electronic GmbH
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <fs.h>
+
+static int do_fs_uuid_wrapper(cmd_tbl_t *cmdtp, int flag,
+	int argc, char * const argv[])
+{
+	return do_fs_uuid(cmdtp, flag, argc, argv, FS_TYPE_ANY);
+}
+
+U_BOOT_CMD(
+	fsuuid, 4, 1, do_fs_uuid_wrapper,
+	"Look up a filesystem UUID",
+	"<interface> <dev>:<part>\n"
+	"    - print filesystem UUID\n"
+	"fsuuid <interface> <dev>:<part> <varname>\n"
+	"    - set environment variable to filesystem UUID\n"
+);