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/include/configs/smdk5420.h

@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2013 Samsung Electronics
+ *
+ * Configuration settings for the SAMSUNG SMDK5420 board.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __CONFIG_SMDK5420_H
+#define __CONFIG_SMDK5420_H
+
+#include <configs/exynos5420-common.h>
+#include <configs/exynos5-dt-common.h>
+#include <configs/exynos5-common.h>
+
+#undef CONFIG_LCD
+#undef CONFIG_EXYNOS_FB
+#undef CONFIG_EXYNOS_DP
+
+#undef CONFIG_KEYBOARD
+
+#define CONFIG_BOARD_COMMON
+
+#define CONFIG_SMDK5420			/* which is in a SMDK5420 */
+
+#define CONFIG_SYS_SDRAM_BASE	0x20000000
+#define CONFIG_SYS_TEXT_BASE	0x23E00000
+#define CONFIG_SYS_INIT_SP_ADDR	(CONFIG_IRAM_TOP - 0x800)
+
+/* select serial console configuration */
+#define CONFIG_SERIAL3		/* use SERIAL 3 */
+#define CONFIG_DEFAULT_CONSOLE	"console=ttySAC1,115200n8\0"
+
+#define CONFIG_IDENT_STRING	" for SMDK5420"
+#define CONFIG_DEFAULT_CONSOLE		"console=ttySAC1,115200n8\0"
+
+/* USB */
+#define CONFIG_USB_XHCI_EXYNOS
+
+/* DRAM Memory Banks */
+#define CONFIG_NR_DRAM_BANKS	7
+#define SDRAM_BANK_SIZE		(512UL << 20UL)	/* 512 MB */
+
+#endif	/* __CONFIG_SMDK5420_H */