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/arch/arm/include/asm/arch-ls102xa/spl.h

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARCH_SPL_H__
+#define __ASM_ARCH_SPL_H__
+
+#define BOOT_DEVICE_NONE	0
+#define BOOT_DEVICE_XIP		1
+#define BOOT_DEVICE_XIPWAIT	2
+#define BOOT_DEVICE_NAND	3
+#define BOOT_DEVICE_ONENAND	4
+#define BOOT_DEVICE_MMC1	5
+#define BOOT_DEVICE_MMC2	6
+#define BOOT_DEVICE_MMC2_2	7
+#define BOOT_DEVICE_SPI		10
+
+#endif	/* __ASM_ARCH_SPL_H__ */