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/drivers/mtd/onenand/onenand_uboot.c

@@ -0,0 +1,56 @@
+/*
+ *  drivers/mtd/onenand/onenand_uboot.c
+ *
+ *  Copyright (C) 2005-2008 Samsung Electronics
+ *  Kyungmin Park <kyungmin.park@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * OneNAND initialization at U-Boot
+ */
+
+#include <common.h>
+#include <linux/compat.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/onenand.h>
+
+struct mtd_info onenand_mtd;
+struct onenand_chip onenand_chip;
+static __attribute__((unused)) char dev_name[] = "onenand0";
+
+void onenand_init(void)
+{
+	memset(&onenand_mtd, 0, sizeof(struct mtd_info));
+	memset(&onenand_chip, 0, sizeof(struct onenand_chip));
+
+	onenand_mtd.priv = &onenand_chip;
+
+#ifdef CONFIG_USE_ONENAND_BOARD_INIT
+	/*
+	 * It's used for some board init required
+	 */
+	onenand_board_init(&onenand_mtd);
+#else
+	onenand_chip.base = (void *) CONFIG_SYS_ONENAND_BASE;
+#endif
+
+	onenand_scan(&onenand_mtd, 1);
+
+	if (onenand_chip.device_id & DEVICE_IS_FLEXONENAND)
+		puts("Flex-");
+	puts("OneNAND: ");
+	print_size(onenand_chip.chipsize, "\n");
+
+#ifdef CONFIG_MTD_DEVICE
+	/*
+	 * Add MTD device so that we can reference it later
+	 * via the mtdcore infrastructure (e.g. ubi).
+	 */
+	onenand_mtd.name = dev_name;
+	add_mtd_device(&onenand_mtd);
+#endif
+}