build/config/sources/families/realtek-rtd1619b.conf

#
# SPDX-License-Identifier: GPL-2.0
#
# This file is a part of the Armbian Build Framework
# https://github.com/armbian/build/
#
ARCH=arm64
ATF_COMPILE="no"
SERIALCON='ttyS0'

BOOTSOURCE='https://github.com/XpressReal/u-boot.git'
BOOTBRANCH='branch:v2024.01-xpressreal'
BOOTCONFIG="rtd1619b_bleedingedge_defconfig"
BOOTPATCHDIR="u-boot-xpressreal"
BOOTSCRIPT='boot-xpressreal-t3.cmd:boot.cmd'
BOOTENV_FILE='xpressreal-t3.txt'
UBOOT_TARGET_MAP=";;u-boot.bin-rtd1619b_emmc rtd1619b_emmc_bind_4gb.bin"

case $BRANCH in
	vendor)
		KERNELSOURCE='https://github.com/XpressReal/linux.git'
		KERNEL_MAJOR_MINOR="6.6"
		KERNELBRANCH='branch:v6.6.54-xpressreal-t3'
		LINUXCONFIG="linux-xpressreal-t3-6.6"
		KERNEL_BTF="no"
		;;
esac

function add_host_dependencies__xpressreal_t3() {
	declare -g EXTRA_BUILD_DEPS="${EXTRA_BUILD_DEPS} xxd python3-setuptools device-tree-compiler lzop u-boot-tools openssl binutils"
}

function pre_config_uboot_target__xpressreal_prepare() {
	display_alert "Run pre_config_uboot_target"

	local PREBUILT_FILE="${SRC}/packages/bsp/xpressreal-t3/u-boot/u-boot-prebuilt.tar.gz"
	local FW_FILE="${SRC}/packages/bsp/xpressreal-t3/u-boot/u-boot-fw.tar.gz"

	if [ -f "${FW_FILE}" ]; then
		display_alert "Extract FW files..."
		run_host_command_logged tar xvf "${FW_FILE}"
	fi

	if [ -f "${PREBUILT_FILE}" ]; then
		display_alert "Extract prebuilt files..."
		run_host_command_logged tar xvf "${PREBUILT_FILE}"
	fi

	if [ -d "./prebuilt/keys" ]; then
		display_alert "Copy keys..."
		run_host_command_logged cp -r "./prebuilt/keys" "./keys"
	else
		display_alert "No signing keys found"
	fi
}

function post_uboot_custom_postprocess__xpressreal_generate_image() {
	display_alert "Run post_uboot_custom_postprocess"

	local KEY_DIR="./keys"
	local PREBUILT="./prebuilt"

	if [ -d "./keys" ]; then
		display_alert "Signing SPL..."
		run_host_command_logged openssl dgst -sha256 -binary "./spl/u-boot-spl.bin_pad" > "${PREBUILT}/u-boot-spl.sha"
		run_host_command_logged openssl pkeyutl -inkey "${KEY_DIR}/dev.key" -sign -in "${PREBUILT}/u-boot-spl.sha" -out "${PREBUILT}/u-boot-spl.sig"
		run_host_command_logged objcopy -I binary -O binary --reverse-bytes=256 "${PREBUILT}/u-boot-spl.sig" "${PREBUILT}/u-boot-spl.sig"
	fi

	display_alert "Generate u-boot images..."
	run_host_command_logged cp -v "./spl/u-boot-spl.bin_pad" "${PREBUILT}/"
	run_host_command_logged cp -v "./u-boot.img" "${PREBUILT}/"
	run_host_command_logged cpp -P -nostdinc -undef -D__DTS__ -x assembler-with-cpp \
							-o "${PREBUILT}/rtd1619b_emmc_4gb.pp" "${PREBUILT}/rtd1619b_emmc_lpddr4_4gb.dts"
	run_host_command_logged dtc -I dts -O dtb -o "${PREBUILT}/rtd1619b_emmc_4gb.dtb" "${PREBUILT}/rtd1619b_emmc_4gb.pp"
	run_host_command_logged tools/binman/binman build --update-fdt -I "${PREBUILT}" --dt "${PREBUILT}/rtd1619b_emmc_4gb.dtb" -O ./

	run_host_command_logged cp -vf "./u-boot.itb" "./u-boot.bin-rtd1619b_emmc"
	run_host_command_logged cp -vf "./bind_4gb.bin" "./rtd1619b_emmc_bind_4gb.bin"
}

function pre_package_uboot_image__xpressreal_install_image() {
	if [ -f "./u-boot.bin-rtd1619b_emmc" ]; then
		display_alert "Found ./u-boot.bin-rtd1619b_emmc, preparing to install to /boot." "info"
		run_host_command_logged mkdir -p "${destination}/boot"
		run_host_command_logged cp -v "./u-boot.bin-rtd1619b_emmc" "${destination}/boot/u-boot.bin-rtd1619b_emmc"
	else
		display_alert "No u-boot.bin-rtd1619b_emmc found, skipping installation to /boot." "info"
	fi
}

function write_uboot_platform() {
	local DIR=$1
	local DEVICE=$2

	display_alert "XpressReal T3" "Writing u-boot to ${DEVICE}..." "info"
	if [[ ! -b "${DEVICE}" ]]; then
		display_alert "XpressReal T3" "Device ${DEVICE} is not a block device" "err"
		return 1
	fi

	if [[ "${DEVICE}" == "/dev/mmcblk0" ]]; then
		# disable boot0/boot1 write protection
		echo 0 > /sys/block/mmcblk0boot0/force_ro
		echo 0 > /sys/block/mmcblk0boot1/force_ro

		dd if="${DIR}/rtd1619b_emmc_bind_4gb.bin" of="/dev/mmcblk0boot0" bs=4096 status=none conv=fsync
		dd if="${DIR}/rtd1619b_emmc_bind_4gb.bin" of="/dev/mmcblk0boot1" bs=4096 status=none conv=fsync

		# clear saved u-boot environment variables
		dd if=/dev/zero of=/dev/mmcblk0boot0 bs=4096 seek=256 count=32 status=none conv=fsync
		dd if=/dev/zero of=/dev/mmcblk0boot1 bs=4096 seek=256 count=32 status=none conv=fsync

		sync
	fi
}

function pre_customize_image__xpressreal_install_firmware() {
	local firmware_source_dir="${SRC}/packages/bsp/xpressreal-t3/firmware"
	local firmware_dest_dir="${SDCARD}/lib/firmware"

	if [ -d "${firmware_source_dir}" ]; then
		display_alert "Copy firmware: ${firmware_source_dir} -> ${firmware_dest_dir}" "info"

		run_host_command_logged mkdir -p "${firmware_dest_dir}"
		run_host_command_logged cp -r "${firmware_source_dir}"/* "${firmware_dest_dir}/"
	else
		display_alert "Custom firmware directory not found, skipping"
	fi
}