script to compile dts files to dtbs outside of Linux Kernel

mkdts.sh

#!/bin/bash

PROGNAME="mkdts"

usage()
{
    echo $PROGNAME "<file.dts> <output.dtb>"
    echo "<file.dts> is the name of the dts to be compiled"
    echo "<output.dtb> name of the output dtb"
}

if [ -z $1 || -z $2]
then
	echo "please input args"
	usage
else
	cpp -nostdinc -I include -I arch -undef -x assembler-with-cpp $1 > temp.dts
	dtc -O dtb -b 0 -o $2 temp.dts
	rm temp.dts
fi