proc include_dtsi {dtsi_file} {
	if {[file exists $dtsi_file]} {
		file copy -force $dtsi_file my_dts
		set fp [open my_dts/system-top.dts r]
		set file_data [read $fp]
		close $fp
		set fileId [open my_dts/system-top.dts "w"]
		set data [split $file_data "\n"]
		foreach line $data {
		     puts $fileId $line
		}
		puts $fileId "#include \"$dtsi_file\""
		close $fileId
	}
}