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/inka4x0/k4h511638c.h

@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2007 Semihalf
+ * Written by Marian Balakowicz <m8@semihalf.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#define SDRAM_DDR	1		/* is DDR */
+
+/* Settings for XLB = 132 MHz */
+#define SDRAM_MODE	0x018D0000
+#define SDRAM_EMODE	0x40090000
+#define SDRAM_CONTROL	0x714F0F00
+#define SDRAM_CONFIG1	0x73722930
+#define SDRAM_CONFIG2	0x46770000
+#define SDRAM_TAPDELAY	0x10000000