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/birdland/bav335x/board.h

@@ -0,0 +1,59 @@
+/*
+ * board.c
+ *
+ * Board functions for Birdland Audio BAV335x Network Processor
+ *
+ * Copyright (c) 2012-2014, Birdland Audio - http://birdland.com/oem
+ *
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _BOARD_H_
+#define _BOARD_H_
+
+/* Serial MagicE: AA 55 BA BE */
+#define BOARD_MAGIC  0xBEBA55AA
+enum board_type {UNKNOWN, BAV335A, BAV335B};
+
+
+/*
+ * The BAV335x may use a built-in read-only serial EEProm.
+ * The Evaluation board, disables the write-protect so the Serial-EE
+ * Can be programmed during manufacturing to store fields such as
+ * a board serial number, ethernet mac address and other user fields.
+ * Additionally, the Serial-EE can store the specific version of the
+ * board it runs on, and overwrite the defaults in _defconfig
+ */
+#define HDR_NO_OF_MAC_ADDR	3
+#define HDR_ETH_ALEN		6
+#define HDR_NAME_LEN		8
+
+struct board_eeconfig {
+	unsigned int  magic;
+	char name[HDR_NAME_LEN];	/* BAV3354 */
+	char version[4];		/* 0B20 - Rev.B2 */
+	char serial[16];
+	char config[32];
+	char mac_addr[HDR_NO_OF_MAC_ADDR][HDR_ETH_ALEN];
+};
+
+enum board_type get_board_type(bool verbose_debug_output);
+
+
+/*
+ * We have three pin mux functions that must exist.  We must be able to enable
+ * uart0, for initial output and i2c0 to read the main EEPROM.  We then have a
+ * main pinmux function that can be overridden to enable all other pinmux that
+ * is required on the board.
+ */
+void enable_uart0_pin_mux(void);
+void enable_uart1_pin_mux(void);
+void enable_uart2_pin_mux(void);
+void enable_uart3_pin_mux(void);
+void enable_uart4_pin_mux(void);
+void enable_uart5_pin_mux(void);
+void enable_i2c0_pin_mux(void);
+void enable_board_pin_mux(enum board_type board);
+
+#endif