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/drivers/video/bridge/ptn3460.c

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2015 Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <video_bridge.h>
+
+static int ptn3460_attach(struct udevice *dev)
+{
+	int ret;
+
+	debug("%s: %s\n", __func__, dev->name);
+	ret = video_bridge_set_active(dev, true);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+struct video_bridge_ops ptn3460_ops = {
+	.attach = ptn3460_attach,
+};
+
+static const struct udevice_id ptn3460_ids[] = {
+	{ .compatible = "nxp,ptn3460", },
+	{ }
+};
+
+U_BOOT_DRIVER(parade_ptn3460) = {
+	.name	= "nmp_ptn3460",
+	.id	= UCLASS_VIDEO_BRIDGE,
+	.of_match = ptn3460_ids,
+	.ops	= &ptn3460_ops,
+};