opnsense-src/sys/tools/fdt/make_dtb.sh

#!/bin/sh
#
# $FreeBSD$

# Script generates dtb file ($3) from dts source ($2) in build tree S ($1)
S=$1
dts="$2"
dtb_path=$3

if [ -z "$dts" ]; then
    echo "No DTS specified"
    exit 1
fi

if [ -z "${MACHINE}" ]; then
    MACHINE=$(uname -m)
fi

: ${DTC:=dtc}

for d in ${dts}; do
    dtb=${dtb_path}/`basename $d .dts`.dtb
    echo "converting $d -> $dtb"
    cpp -P -x assembler-with-cpp -I $S/gnu/dts/include -I $S/boot/fdt/dts/${MACHINE} -I $S/gnu/dts/${MACHINE} -include $d /dev/null | 
	${DTC} -@ -O dtb -o $dtb -b 0 -p 1024 -i $S/boot/fdt/dts/${MACHINE} -i $S/gnu/dts/${MACHINE}
done