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/test/dm/cmd_dm.c

@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2013 Google, Inc
+ *
+ * (C) Copyright 2012
+ * Marek Vasut <marex@denx.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <dm.h>
+#include <malloc.h>
+#include <mapmem.h>
+#include <errno.h>
+#include <asm/io.h>
+#include <dm/root.h>
+#include <dm/util.h>
+
+static int do_dm_dump_all(cmd_tbl_t *cmdtp, int flag, int argc,
+			  char * const argv[])
+{
+	dm_dump_all();
+
+	return 0;
+}
+
+static int do_dm_dump_uclass(cmd_tbl_t *cmdtp, int flag, int argc,
+			     char * const argv[])
+{
+	dm_dump_uclass();
+
+	return 0;
+}
+
+static int do_dm_dump_devres(cmd_tbl_t *cmdtp, int flag, int argc,
+			     char * const argv[])
+{
+	dm_dump_devres();
+
+	return 0;
+}
+
+static cmd_tbl_t test_commands[] = {
+	U_BOOT_CMD_MKENT(tree, 0, 1, do_dm_dump_all, "", ""),
+	U_BOOT_CMD_MKENT(uclass, 1, 1, do_dm_dump_uclass, "", ""),
+	U_BOOT_CMD_MKENT(devres, 1, 1, do_dm_dump_devres, "", ""),
+};
+
+static __maybe_unused void dm_reloc(void)
+{
+	static int relocated;
+
+	if (!relocated) {
+		fixup_cmdtable(test_commands, ARRAY_SIZE(test_commands));
+		relocated = 1;
+	}
+}
+
+static int do_dm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	cmd_tbl_t *test_cmd;
+	int ret;
+
+#ifdef CONFIG_NEEDS_MANUAL_RELOC
+	dm_reloc();
+#endif
+
+	if (argc < 2)
+		return CMD_RET_USAGE;
+	test_cmd = find_cmd_tbl(argv[1], test_commands,
+				ARRAY_SIZE(test_commands));
+	argc -= 2;
+	argv += 2;
+	if (!test_cmd || argc > test_cmd->maxargs)
+		return CMD_RET_USAGE;
+
+	ret = test_cmd->cmd(test_cmd, flag, argc, argv);
+
+	return cmd_process_error(test_cmd, ret);
+}
+
+U_BOOT_CMD(
+	dm,	3,	1,	do_dm,
+	"Driver model low level access",
+	"tree         Dump driver model tree ('*' = activated)\n"
+	"dm uclass        Dump list of instances for each uclass\n"
+	"dm devres        Dump list of device resources for each device"
+);