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/freescale/common/sleep.h

@@ -0,0 +1,21 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __SLEEP_H
+#define __SLEEP_H
+
+#define DCFG_CCSR_CRSTSR_WDRFR	(1 << 3)
+#define DDR_BUFF_LEN			128
+
+/* determine if it is a wakeup from deep sleep */
+bool is_warm_boot(void);
+
+/* disable console output */
+void fsl_dp_disable_console(void);
+
+/* clean up everything and jump to kernel */
+int fsl_dp_resume(void);
+#endif