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94b13bba | 1 | #!/usr/bin/env python2 |
83d290c5 | 2 | # SPDX-License-Identifier: GPL-2.0+ |
69f2ed77 SG |
3 | # |
4 | # Copyright (C) 2016 Google, Inc | |
5 | # Written by Simon Glass <sjg@chromium.org> | |
6 | # | |
69f2ed77 | 7 | |
14f5acfc SG |
8 | """Device tree to C tool |
9 | ||
10 | This tool converts a device tree binary file (.dtb) into two C files. The | |
11 | indent is to allow a C program to access data from the device tree without | |
12 | having to link against libfdt. By putting the data from the device tree into | |
13 | C structures, normal C code can be used. This helps to reduce the size of the | |
14 | compiled program. | |
15 | ||
16 | Dtoc produces two output files: | |
17 | ||
18 | dt-structs.h - contains struct definitions | |
19 | dt-platdata.c - contains data from the device tree using the struct | |
20 | definitions, as well as U-Boot driver definitions. | |
21 | ||
22 | This tool is used in U-Boot to provide device tree data to SPL without | |
23 | increasing the code size of SPL. This supports the CONFIG_SPL_OF_PLATDATA | |
24 | options. For more information about the use of this options and tool please | |
25 | see doc/driver-model/of-plat.txt | |
26 | """ | |
27 | ||
7581c01a | 28 | from optparse import OptionParser |
69f2ed77 SG |
29 | import os |
30 | import sys | |
c0791928 | 31 | import unittest |
69f2ed77 | 32 | |
69f2ed77 SG |
33 | # Bring in the patman libraries |
34 | our_path = os.path.dirname(os.path.realpath(__file__)) | |
35 | sys.path.append(os.path.join(our_path, '../patman')) | |
36 | ||
7581c01a | 37 | import dtb_platdata |
69f2ed77 | 38 | |
c0791928 SG |
39 | def run_tests(): |
40 | """Run all the test we have for dtoc""" | |
41 | import test_dtoc | |
69f2ed77 | 42 | |
c0791928 SG |
43 | result = unittest.TestResult() |
44 | sys.argv = [sys.argv[0]] | |
45 | for module in (test_dtoc.TestDtoc,): | |
46 | suite = unittest.TestLoader().loadTestsFromTestCase(module) | |
47 | suite.run(result) | |
48 | ||
49 | print result | |
50 | for _, err in result.errors: | |
51 | print err | |
52 | for _, err in result.failures: | |
53 | print err | |
54 | ||
55 | if __name__ != '__main__': | |
56 | sys.exit(1) | |
69f2ed77 SG |
57 | |
58 | parser = OptionParser() | |
59 | parser.add_option('-d', '--dtb-file', action='store', | |
60 | help='Specify the .dtb input file') | |
61 | parser.add_option('--include-disabled', action='store_true', | |
62 | help='Include disabled nodes') | |
63 | parser.add_option('-o', '--output', action='store', default='-', | |
64 | help='Select output filename') | |
c0791928 SG |
65 | parser.add_option('-t', '--test', action='store_true', dest='test', |
66 | default=False, help='run tests') | |
69f2ed77 SG |
67 | (options, args) = parser.parse_args() |
68 | ||
c0791928 SG |
69 | # Run our meagre tests |
70 | if options.test: | |
71 | run_tests() | |
72 | ||
73 | else: | |
74 | dtb_platdata.run_steps(args, options.dtb_file, options.include_disabled, | |
75 | options.output) |