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