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/linux/mtd/fsl_upm.h

@@ -0,0 +1,45 @@
+/*
+ * FSL UPM NAND driver
+ *
+ * Copyright (C) 2007 MontaVista Software, Inc.
+ *                    Anton Vorontsov <avorontsov@ru.mvista.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __LINUX_MTD_NAND_FSL_UPM
+#define __LINUX_MTD_NAND_FSL_UPM
+
+#include <linux/mtd/nand.h>
+
+#define FSL_UPM_WAIT_RUN_PATTERN  0x1
+#define FSL_UPM_WAIT_WRITE_BYTE   0x2
+#define FSL_UPM_WAIT_WRITE_BUFFER 0x4
+
+struct fsl_upm {
+	void __iomem *mdr;
+	void __iomem *mxmr;
+	void __iomem *mar;
+	void __iomem *io_addr;
+};
+
+struct fsl_upm_nand {
+	struct fsl_upm upm;
+
+	int width;
+	int upm_cmd_offset;
+	int upm_addr_offset;
+	int upm_mar_chip_offset;
+	int wait_flags;
+	int (*dev_ready)(int chip_nr);
+	int chip_delay;
+	int chip_offset;
+	int chip_nr;
+
+	/* no need to fill */
+	int last_ctrl;
+};
+
+extern int fsl_upm_nand_init(struct nand_chip *chip, struct fsl_upm_nand *fun);
+
+#endif