mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-05 02:36:39 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
109 lines
2.9 KiB
Python
109 lines
2.9 KiB
Python
#!/usr/bin/python
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# SPDX-License-Identifier: GPL-2.0+
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#
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# Copyright (C) 2016 Google, Inc
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# Written by Simon Glass <sjg@chromium.org>
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#
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import os
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import struct
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import sys
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import tempfile
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import command
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import tools
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def fdt32_to_cpu(val):
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"""Convert a device tree cell to an integer
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Args:
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Value to convert (4-character string representing the cell value)
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Return:
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A native-endian integer value
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"""
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if sys.version_info > (3, 0):
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if isinstance(val, bytes):
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val = val.decode('utf-8')
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val = val.encode('raw_unicode_escape')
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return struct.unpack('>I', val)[0]
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def fdt_cells_to_cpu(val, cells):
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"""Convert one or two cells to a long integer
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Args:
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Value to convert (array of one or more 4-character strings)
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Return:
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A native-endian long value
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"""
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if not cells:
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return 0
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out = long(fdt32_to_cpu(val[0]))
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if cells == 2:
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out = out << 32 | fdt32_to_cpu(val[1])
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return out
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def EnsureCompiled(fname):
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"""Compile an fdt .dts source file into a .dtb binary blob if needed.
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Args:
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fname: Filename (if .dts it will be compiled). It not it will be
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left alone
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Returns:
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Filename of resulting .dtb file
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"""
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_, ext = os.path.splitext(fname)
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if ext != '.dts':
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return fname
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dts_input = tools.GetOutputFilename('source.dts')
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dtb_output = tools.GetOutputFilename('source.dtb')
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search_paths = [os.path.join(os.getcwd(), 'include')]
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root, _ = os.path.splitext(fname)
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args = ['-E', '-P', '-x', 'assembler-with-cpp', '-D__ASSEMBLY__']
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args += ['-Ulinux']
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for path in search_paths:
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args.extend(['-I', path])
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args += ['-o', dts_input, fname]
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command.Run('cc', *args)
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# If we don't have a directory, put it in the tools tempdir
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search_list = []
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for path in search_paths:
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search_list.extend(['-i', path])
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args = ['-I', 'dts', '-o', dtb_output, '-O', 'dtb',
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'-W', 'no-unit_address_vs_reg']
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args.extend(search_list)
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args.append(dts_input)
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dtc = os.environ.get('DTC') or 'dtc'
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command.Run(dtc, *args)
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return dtb_output
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def GetInt(node, propname, default=None):
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prop = node.props.get(propname)
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if not prop:
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return default
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value = fdt32_to_cpu(prop.value)
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if type(value) == type(list):
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raise ValueError("Node '%s' property '%' has list value: expecting"
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"a single integer" % (node.name, propname))
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return value
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def GetString(node, propname, default=None):
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prop = node.props.get(propname)
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if not prop:
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return default
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value = prop.value
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if type(value) == type(list):
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raise ValueError("Node '%s' property '%' has list value: expecting"
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"a single string" % (node.name, propname))
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return value
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def GetBool(node, propname, default=False):
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if propname in node.props:
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return True
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return default
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