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binman: Obtain the list of device trees from the config
We always have a device tree for U-Boot proper. But we may also have one for SPL and TPL. Add a new Entry method to find out what DTs an entry has, and use that list when updating DTs. Signed-off-by: Simon Glass <sjg@chromium.org>
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parent
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commit
539aece516
5 changed files with 46 additions and 3 deletions
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@ -8,6 +8,7 @@
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from __future__ import print_function
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from collections import OrderedDict
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from sets import Set
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import sys
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import fdt_util
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@ -92,6 +93,13 @@ class Section(object):
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entry.SetPrefix(self._name_prefix)
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self._entries[node.name] = entry
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def GetFdtSet(self):
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"""Get the set of device tree files used by this image"""
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fdt_set = Set()
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for entry in self._entries.values():
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fdt_set.update(entry.GetFdtSet())
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return fdt_set
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def SetOffset(self, offset):
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self._offset = offset
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@ -137,7 +137,7 @@ def Binman(options, args):
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if skip:
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print 'Skipping images: %s\n' % ', '.join(skip)
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state.Prepare(dtb)
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state.Prepare(images, dtb)
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# Prepare the device tree by making sure that any missing
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# properties are added (e.g. 'pos' and 'size'). The values of these
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@ -18,6 +18,7 @@ except:
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have_importlib = False
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import os
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from sets import Set
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import sys
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import fdt_util
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@ -164,6 +165,20 @@ class Entry(object):
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def GetDefaultFilename(self):
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return None
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def GetFdtSet(self):
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"""Get the set of device trees used by this entry
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Returns:
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Set containing the filename from this entry, if it is a .dtb, else
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an empty set
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"""
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fname = self.GetDefaultFilename()
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# It would be better to use isinstance(self, Entry_blob_dtb) here but
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# we cannot access Entry_blob_dtb
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if fname and fname.endswith('.dtb'):
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return Set([fname])
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return Set()
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def AddMissingProperties(self):
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"""Add new properties to the device tree as needed for this entry"""
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for prop in ['offset', 'size', 'image-pos']:
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@ -54,6 +54,10 @@ class Image:
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self._filename = filename
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self._section = bsection.Section('main-section', self._node)
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def GetFdtSet(self):
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"""Get the set of device tree files used by this image"""
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return self._section.GetFdtSet()
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def AddMissingProperties(self):
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"""Add properties that are not present in the device tree
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@ -18,6 +18,10 @@ fdt_files = {}
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# Arguments passed to binman to provide arguments to entries
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entry_args = {}
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# True to use fake device-tree files for testing (see U_BOOT_DTB_DATA in
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# ftest.py)
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use_fake_dtb = True
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# Set of all device tree files references by images
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fdt_set = Set()
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@ -85,13 +89,14 @@ def GetEntryArg(name):
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"""
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return entry_args.get(name)
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def Prepare(dtb):
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def Prepare(images, dtb):
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"""Get device tree files ready for use
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This sets up a set of device tree files that can be retrieved by GetFdts().
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At present there is only one, that for U-Boot proper.
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Args:
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images: List of images being used
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dtb: Main dtb
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"""
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global fdt_set, fdt_subset, fdt_files, main_dtb
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@ -107,8 +112,19 @@ def Prepare(dtb):
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main_dtb = dtb
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fdt_files.clear()
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fdt_files['u-boot.dtb'] = dtb
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fdt_set = Set()
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fdt_subset = Set()
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if not use_fake_dtb:
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for image in images.values():
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fdt_subset.update(image.GetFdtSet())
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fdt_subset.discard('u-boot.dtb')
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for other_fname in fdt_subset:
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infile = tools.GetInputFilename(other_fname)
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other_fname_dtb = fdt_util.EnsureCompiled(infile)
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out_fname = tools.GetOutputFilename('%s.out' %
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os.path.split(other_fname)[1])
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tools.WriteFile(out_fname, tools.ReadFile(other_fname_dtb))
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other_dtb = fdt.FdtScan(out_fname)
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fdt_files[other_fname] = other_dtb
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def GetFdts():
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"""Yield all device tree files being used by binman
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