U-Boot

#!/bin/bash

# Copyright (c) 2016 Stephen Warren <swarren@wwwdotorg.org>
# Copyright (c) 2016 Konsulko Group
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# * Redistributions of source code must retain the above copyright notice,
#   this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
#   this list of conditions and the following disclaimer in the documentation
#   and/or other materials provided with the distribution.
# * Neither the name of the copyright holder nor the names of its contributors
#   may be used to endorse or promote products derived from this software
#   without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.

cp "${U_BOOT_BUILD_DIR}"/u-boot.bin "${UL_DIR}"/u-boot.bin

touch "${UL_DIR}/config.txt"

echo "enable_uart=1" >> "${UL_DIR}/config.txt"
echo "kernel=u-boot.bin" >> "${UL_DIR}/config.txt"

case "${board_type}" in
rpi_3|rpi_3b|rpi_3_b_plus|rpi_4|rpi_arm64)
    echo "arm_64bit=1" >> "${UL_DIR}/config.txt"
    ;;
esac

case "${board_ident}" in
3-32-pl011)
    echo "dtoverlay=pi3-miniuart-bt" >> "${UL_DIR}/config.txt"
    ;;
esac