1#!/usr/bin/env python2 2# SPDX-License-Identifier: GPL-3.0-or-later 3# devicetree_convert Tool to convert a DTB to a static C file 4 5from pyfdt.pyfdt import FdtBlobParse 6import argparse 7 8parser = argparse.ArgumentParser(description='Cavium DTB to C converter') 9parser.add_argument('--indtb', help='Compiled devicetree blob to parse') 10parser.add_argument('--out', help='The file to write') 11parser.add_argument('--verbose', help='Be verbose', action='store_true', default=False) 12args = parser.parse_args() 13 14outfile = None 15if args.out is not None: 16 outfile = open(args.out, 'w') 17 outfile.write("// This file is automatically generated.\n") 18 outfile.write("// DO NOT EDIT BY HAND.\n\n") 19 outfile.write("#include <bdk-devicetree.h>\n\n") 20 outfile.write("const struct bdk_devicetree_key_value devtree[] = {\n") 21 22with open(args.indtb) as infile: 23 dtb = FdtBlobParse(infile) 24 fdt = dtb.to_fdt() 25 for (path, node) in fdt.resolve_path('/cavium,bdk').walk(): 26 if "/" in path: 27 path = path.replace("/", "") 28 if len(node) == 1: 29 for i in node: 30 if type(i) is not unicode: 31 print "%s: Type is not string" % path 32 continue 33 if args.verbose: 34 print "%s = %s" % (path, i) 35 if outfile is not None: 36 outfile.write("{\"%s\", \"%s\"},\n" % (path, i)) 37 else: 38 print "%s: Arrays aren't supported" % path 39 40if outfile is not None: 41 outfile.write("{0, 0},\n") 42 outfile.write("};\n") 43