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/samsung/common/exynos-uboot-spl.lds

@@ -0,0 +1,60 @@
+/*
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * Based on arch/arm/cpu/armv7/omap-common/u-boot-spl.lds
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+MEMORY { .sram : ORIGIN = CONFIG_SPL_TEXT_BASE, \
+		LENGTH = CONFIG_SPL_MAX_FOOTPRINT }
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+
+SECTIONS
+{
+	.text :
+	{
+		__start = .;
+		*(.vectors)
+		arch/arm/cpu/armv7/start.o (.text*)
+		*(.text*)
+	} >.sram
+	. = ALIGN(4);
+
+	.rodata : { *(SORT_BY_ALIGNMENT(.rodata*)) } >.sram
+	. = ALIGN(4);
+
+	.data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
+	. = ALIGN(4);
+
+	.u_boot_list : {
+		KEEP(*(SORT(.u_boot_list*)));
+	} >.sram
+	. = ALIGN(4);
+
+	/* Align .machine_param on 256 byte boundary for easier searching */
+	.machine_param ALIGN(0x100) : { *(.machine_param) } >.sram
+	. = ALIGN(4);
+
+	__image_copy_end = .;
+
+	.end :
+	{
+		*(.__end)
+	} >.sram
+
+	.bss :
+	{
+		. = ALIGN(4);
+		__bss_start = .;
+		*(.bss*)
+		. = ALIGN(4);
+		__bss_end = .;
+	} >.sram
+}