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/arch/arm/include/asm/arch-armv7/wdt.h

@@ -0,0 +1,39 @@
+/*
+ * (C) Copyright 2010
+ * Matt Waddel, <matt.waddel@linaro.org>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#ifndef _WDT_H_
+#define _WDT_H_
+
+/* Watchdog timer (SP805) register base address */
+#define WDT_BASE	0x100E5000
+
+#define WDT_EN		0x2
+#define WDT_RESET_LOAD	0x0
+
+struct wdt {
+	u32 wdogload;		/* 0x000 */
+	u32 wdogvalue;
+	u32 wdogcontrol;
+	u32 wdogintclr;
+	u32 wdogris;
+	u32 wdogmis;
+	u32 res1[0x2F9];
+	u32 wdoglock;		/* 0xC00 */
+	u32 res2[0xBE];
+	u32 wdogitcr;		/* 0xF00 */
+	u32 wdogitop;
+	u32 res3[0x35];
+	u32 wdogperiphid0;	/* 0xFE0 */
+	u32 wdogperiphid1;
+	u32 wdogperiphid2;
+	u32 wdogperiphid3;
+	u32 wdogpcellid0;
+	u32 wdogpcellid1;
+	u32 wdogpcellid2;
+	u32 wdogpcellid3;
+};
+
+#endif /* _WDT_H_ */