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/sh7785lcr/sh7785lcr.c

@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2008 Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+#include <asm/pci.h>
+#include <netdev.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkboard(void)
+{
+	puts("BOARD: Renesas Technology Corp. R0P7785LC0011RL\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;
+}
+
+static struct pci_controller hose;
+void pci_init_board(void)
+{
+	pci_sh7780_init(&hose);
+}
+
+int board_eth_init(bd_t *bis)
+{
+	return pci_eth_init(bis);
+}
+
+#if defined(CONFIG_SH_32BIT)
+int do_pmb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	/* clear ITLB */
+	writel(0x00000004, 0xff000010);
+
+	/* delete PMB for peripheral */
+	writel(0, PMB_ADDR_BASE(0));
+	writel(0, PMB_DATA_BASE(0));
+	writel(0, PMB_ADDR_BASE(1));
+	writel(0, PMB_DATA_BASE(1));
+	writel(0, PMB_ADDR_BASE(2));
+	writel(0, PMB_DATA_BASE(2));
+
+	/* add PMB for SDRAM(0x40000000 - 0x47ffffff) */
+	writel(mk_pmb_addr_val(0x80), PMB_ADDR_BASE(8));
+	writel(mk_pmb_data_val(0x40, 0, 1, 1, 0, 1, 1), PMB_DATA_BASE(8));
+	writel(mk_pmb_addr_val(0xa0), PMB_ADDR_BASE(12));
+	writel(mk_pmb_data_val(0x40, 1, 1, 1, 0, 0, 1), PMB_DATA_BASE(12));
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	pmb,	1,	1,	do_pmb,
+	"pmb     - PMB setting\n",
+	"\n"
+	"    - PMB setting for all SDRAM mapping"
+);
+#endif