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/renesas/sh7763rdp/sh7763rdp.c

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2008 Renesas Solutions Corp.
+ * Copyright (C) 2008 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
+ * Copyright (C) 2007 Kenati Technologies, Inc.
+ *
+ * board/sh7763rdp/sh7763rdp.c
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define CPU_CMDREG	0xB1000006
+#define PDCR        0xffef0006
+#define PECR        0xffef0008
+#define PFCR        0xffef000a
+#define PGCR        0xffef000c
+#define PHCR        0xffef000e
+#define PJCR        0xffef0012
+#define PKCR        0xffef0014
+#define PLCR        0xffef0016
+#define PMCR        0xffef0018
+#define PSEL1       0xffef0072
+#define PSEL2       0xffef0074
+#define PSEL3       0xffef0076
+
+int checkboard(void)
+{
+	puts("BOARD: Renesas SH7763 RDP\n");
+	return 0;
+}
+
+int board_init(void)
+{
+	vu_short dat;
+
+	/* Enable mode */
+	writew(inw(CPU_CMDREG)|0x0001, CPU_CMDREG);
+
+	/* GPIO Setting (eth1) */
+	dat = inw(PSEL1);
+	writew(((dat & ~0xff00) | 0x2400), PSEL1);
+	writew(0, PFCR);
+	writew(0, PGCR);
+	writew(0, PHCR);
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
+	gd->bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
+	printf("DRAM:  %dMB\n", CONFIG_SYS_SDRAM_SIZE / (1024 * 1024));
+	return 0;
+}
+
+void led_set_state(unsigned short value)
+{
+}