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#!/usr/bin/perl -w
# Generate additions to add a PSCI enable-method to cpu nodes.
#
# Usage: ./$0 <DTB>
#
# Copyright (C) 2014 ARM Limited. All rights reserved.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE.txt file.
use warnings;
use strict;
use FDT;
my $filename = shift;
die("No filename provided") unless defined($filename);
open (my $fh, "<:raw", $filename) or die("Unable to open file '$filename'");
my $fdt = FDT->parse($fh) or die("Unable to parse DTB");
my $root = $fdt->get_root();
my @cpus = $root->find_by_device_type('cpu');
foreach my $cpu (@cpus) {
printf("&{%s} { enable-method = \\\"psci\\\"; };\n", $cpu->get_full_path());
}
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