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/r2dplus/r2dplus.c

@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2007,2008
+ * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <ide.h>
+#include <netdev.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/pci.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkboard(void)
+{
+	puts("BOARD: Renesas Solutions R2D Plus\n");
+	return 0;
+}
+
+int board_init(void)
+{
+	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;
+}
+
+int board_late_init(void)
+{
+	return 0;
+}
+
+#define FPGA_BASE		0xA4000000
+#define FPGA_CFCTL		(FPGA_BASE + 0x04)
+#define CFCTL_EN		(0x432)
+#define FPGA_CFPOW		(FPGA_BASE + 0x06)
+#define CFPOW_ON		(0x02)
+#define FPGA_CFCDINTCLR	(FPGA_BASE + 0x2A)
+#define CFCDINTCLR_EN	(0x01)
+
+void ide_set_reset(int idereset)
+{
+	/* if reset = 1 IDE reset will be asserted */
+	if (idereset) {
+		outw(CFCTL_EN, FPGA_CFCTL);	/* CF enable */
+		outw(inw(FPGA_CFPOW)|CFPOW_ON, FPGA_CFPOW); /* Power OM */
+		outw(CFCDINTCLR_EN, FPGA_CFCDINTCLR); /* Int clear */
+	}
+}
+
+static struct pci_controller hose;
+void pci_init_board(void)
+{
+	pci_sh7751_init(&hose);
+}
+
+int board_eth_init(bd_t *bis)
+{
+	return pci_eth_init(bis);
+}