| # SPDX-License-Identifier: GPL-2.0+ |
| # Copyright (c) 2018 Google, Inc |
| # Written by Simon Glass <sjg@chromium.org> |
| # |
| # Entry-type module for U-Boot device tree files |
| # |
| |
| import state |
| |
| from entry import Entry |
| from blob import Entry_blob |
| |
| class Entry_blob_dtb(Entry_blob): |
| """A blob that holds a device tree |
| |
| This is a blob containing a device tree. The contents of the blob are |
| obtained from the list of available device-tree files, managed by the |
| 'state' module. |
| """ |
| def __init__(self, section, etype, node): |
| Entry_blob.__init__(self, section, etype, node) |
| |
| def ObtainContents(self): |
| """Get the device-tree from the list held by the 'state' module""" |
| self._filename = self.GetDefaultFilename() |
| self._pathname, data = state.GetFdtContents(self._filename) |
| self.SetContents(data) |
| return True |
| |
| def ProcessContents(self): |
| """Re-read the DTB contents so that we get any calculated properties""" |
| _, data = state.GetFdtContents(self._filename) |
| self.SetContents(data) |
