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# SPDX-License-Identifier: GPL-2.0+
# Copyright (c) 2018 Google, Inc
# Written by Simon Glass <sjg@chromium.org>
#
from binman.entry import Entry
from dtoc import fdt_util
from patman import tools
class Entry_fill(Entry):
"""An entry which is filled to a particular byte value
Properties / Entry arguments:
- fill-byte: Byte to use to fill the entry
Note that the size property must be set since otherwise this entry does not
know how large it should be.
You can often achieve the same effect using the pad-byte property of the
overall image, in that the space between entries will then be padded with
that byte. But this entry is sometimes useful for explicitly setting the
byte value of a region.
"""
def __init__(self, section, etype, node):
super().__init__(section, etype, node)
def ReadNode(self):
super().ReadNode()
if self.size is None:
self.Raise("'fill' entry must have a size property")
self.fill_value = fdt_util.GetByte(self._node, 'fill-byte', 0)
def ObtainContents(self):
self.SetContents(tools.GetBytes(self.fill_value, self.size))
return True
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