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/thermal/thermal-uclass.c

@@ -0,0 +1,30 @@
+/*
+ * (C) Copyright 2014 Freescale Semiconductor, Inc
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <thermal.h>
+#include <errno.h>
+#include <fdtdec.h>
+#include <malloc.h>
+#include <asm/io.h>
+#include <linux/list.h>
+
+
+int thermal_get_temp(struct udevice *dev, int *temp)
+{
+	const struct dm_thermal_ops *ops = device_get_ops(dev);
+
+	if (!ops->get_temp)
+		return -ENOSYS;
+
+	return ops->get_temp(dev, temp);
+}
+
+UCLASS_DRIVER(thermal) = {
+	.id		= UCLASS_THERMAL,
+	.name		= "thermal",
+};