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/intel/crownbay/Kconfig

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+if TARGET_CROWNBAY
+
+config SYS_BOARD
+	default "crownbay"
+
+config SYS_VENDOR
+	default "intel"
+
+config SYS_SOC
+	default "queensbay"
+
+config SYS_CONFIG_NAME
+	default "crownbay"
+
+config SYS_TEXT_BASE
+	default 0xfff00000
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+	def_bool y
+	select X86_RESET_VECTOR
+	select INTEL_QUEENSBAY
+	select BOARD_ROMSIZE_KB_1024
+
+endif

u-boot/board/intel/crownbay/MAINTAINERS

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+INTEL CROWNBAY BOARD
+M:	Bin Meng <bmeng.cn@gmail.com>
+S:	Maintained
+F:	board/intel/crownbay/
+F:	include/configs/crownbay.h
+F:	configs/crownbay_defconfig

u-boot/board/intel/crownbay/Makefile

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+#
+# Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	+= crownbay.o start.o

u-boot/board/intel/crownbay/crownbay.c

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+/*
+ * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/ibmpc.h>
+#include <asm/pnp_def.h>
+#include <smsc_lpc47m.h>
+
+int board_early_init_f(void)
+{
+	lpc47m_enable_serial(PNP_DEV(LPC47M_IO_PORT, LPC47M_SP1),
+			     UART0_BASE, UART0_IRQ);
+	lpc47m_enable_kbc(PNP_DEV(LPC47M_IO_PORT, LPC47M_KBC),
+			  KBD_IRQ, MSE_IRQ);
+
+	return 0;
+}

u-boot/board/intel/crownbay/start.S

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+/*
+ * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+.globl early_board_init
+early_board_init:
+	jmp	early_board_init_ret