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/microchip/pic32mzda/pic32mzda.c

@@ -0,0 +1,42 @@
+/*
+ * Microchip PIC32MZ[DA] Starter Kit board
+ *
+ * Copyright (C) 2015, Microchip Technology Inc.
+ * Purna Chandra Mandal <purna.mandal@microchip.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <clk.h>
+#include <dt-bindings/clock/microchip,clock.h>
+#include <mach/pic32.h>
+
+#ifdef CONFIG_DISPLAY_BOARDINFO
+int checkboard(void)
+{
+	ulong rate;
+	struct udevice *dev;
+	struct clk clk;
+	int ret;
+
+	printf("Core: %s\n", get_core_name());
+
+	if (uclass_get_device(UCLASS_CLK, 0, &dev))
+		return 0;
+
+	clk.id = PB7CLK;
+	ret = clk_request(dev, &clk);
+	if (ret < 0)
+		return 0;
+
+	rate = clk_get_rate(&clk);
+	printf("CPU Speed: %lu MHz\n", rate / 1000000);
+
+	clk_free(&clk);
+
+	return 0;
+}
+#endif