56 lines
2.1 KiB
Python
56 lines
2.1 KiB
Python
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#!/usr/bin/env python2
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# devicetree_convert Tool to convert a DTB to a static C file
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# Copyright (C) 2018 Facebook Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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from pyfdt.pyfdt import FdtBlobParse
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import argparse
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parser = argparse.ArgumentParser(description='Cavium DTB to C converter')
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parser.add_argument('--indtb', help='Compiled devicetree blob to parse')
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parser.add_argument('--out', help='The file to write')
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parser.add_argument('--verbose', help='Be verbose', action='store_true', default=False)
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args = parser.parse_args()
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outfile = None
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if args.out is not None:
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outfile = open(args.out, 'w')
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outfile.write("// This file is part of the coreboot project.\n")
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outfile.write("// This file is automatically generated.\n")
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outfile.write("// DO NOT EDIT BY HAND.\n\n")
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outfile.write("#include <bdk-devicetree.h>\n\n")
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outfile.write("const struct bdk_devicetree_key_value devtree[] = {\n")
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with open(args.indtb) as infile:
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dtb = FdtBlobParse(infile)
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fdt = dtb.to_fdt()
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for (path, node) in fdt.resolve_path('/cavium,bdk').walk():
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if "/" in path:
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path = path.replace("/", "")
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if len(node) == 1:
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for i in node:
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if type(i) is not unicode:
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print "%s: Type is not string" % path
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continue
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if args.verbose:
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print "%s = %s" % (path, i)
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if outfile is not None:
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outfile.write("{\"%s\", \"%s\"},\n" % (path, i))
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else:
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print "%s: Arrays aren't supported" % path
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if outfile is not None:
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outfile.write("{0, 0},\n")
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outfile.write("};\n")
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