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/sh/include/asm/zimage.h

@@ -0,0 +1,25 @@
+/*
+ * (C) Copyright 2010
+ *   Renesas Solutions Corp.
+ *   Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _ASM_ZIMAGE_H_
+#define _ASM_ZIMAGE_H_
+
+#define MOUNT_ROOT_RDONLY	0x000
+#define RAMDISK_FLAGS		0x004
+#define ORIG_ROOT_DEV		0x008
+#define LOADER_TYPE			0x00c
+#define INITRD_START		0x010
+#define INITRD_SIZE			0x014
+#define COMMAND_LINE		0x100
+
+#define RD_PROMPT			(1<<15)
+#define RD_DOLOAD			(1<<14)
+#define CMD_ARG_RD_PROMPT	"prompt_ramdisk="
+#define CMD_ARG_RD_DOLOAD	"load_ramdisk="
+
+#endif