It is useful to add the CBFS file information (offset, size, etc.) into the FDT so that the layout is complete. Add support for this.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v2: None
tools/binman/etype/cbfs.py | 49 +++++++++++++++++++++++++-- tools/binman/ftest.py | 25 ++++++++++++++ tools/binman/test/125_cbfs_update.dts | 21 ++++++++++++ 3 files changed, 92 insertions(+), 3 deletions(-) create mode 100644 tools/binman/test/125_cbfs_update.dts
diff --git a/tools/binman/etype/cbfs.py b/tools/binman/etype/cbfs.py index 49baa6a4f63..a46bb98a033 100644 --- a/tools/binman/etype/cbfs.py +++ b/tools/binman/etype/cbfs.py @@ -11,6 +11,7 @@ import cbfs_util from cbfs_util import CbfsWriter from entry import Entry import fdt_util +import state
class Entry_cbfs(Entry): """Entry containing a Coreboot Filesystem (CBFS) @@ -181,11 +182,17 @@ class Entry_cbfs(Entry): if not entry.ObtainContents(): return False data = entry.GetData() + cfile = None if entry._type == 'raw': - cbfs.add_file_raw(entry._cbfs_name, data, entry._cbfs_offset, - entry._cbfs_compress) + cfile = cbfs.add_file_raw(entry._cbfs_name, data, + entry._cbfs_offset, + entry._cbfs_compress) elif entry._type == 'stage': - cbfs.add_file_stage(entry._cbfs_name, data, entry._cbfs_offset) + cfile = cbfs.add_file_stage(entry._cbfs_name, data, + entry._cbfs_offset) + if cfile: + entry._cbfs_file = cfile + entry.size = cfile.data_len data = cbfs.get_data() self.SetContents(data) return True @@ -203,3 +210,39 @@ class Entry_cbfs(Entry): self.Raise("Invalid compression in '%s': '%s'" % (node.name, compress)) self._cbfs_entries[entry._cbfs_name] = entry + + def SetImagePos(self, image_pos): + """Override this function to set all the entry properties from CBFS + + We can only do this once image_pos is known + + Args: + image_pos: Position of this entry in the image + """ + Entry.SetImagePos(self, image_pos) + + # Now update the entries with info from the CBFS entries + for entry in self._cbfs_entries.values(): + cfile = entry._cbfs_file + entry.size = cfile.data_len + entry.offset = cfile.calced_cbfs_offset + entry.image_pos = self.image_pos + entry.offset + if entry._cbfs_compress: + entry.uncomp_size = cfile.memlen + + def AddMissingProperties(self): + Entry.AddMissingProperties(self) + for entry in self._cbfs_entries.values(): + entry.AddMissingProperties() + if entry._cbfs_compress: + state.AddZeroProp(entry._node, 'uncomp-size') + + def SetCalculatedProperties(self): + """Set the value of device-tree properties calculated by binman""" + Entry.SetCalculatedProperties(self) + for entry in self._cbfs_entries.values(): + state.SetInt(entry._node, 'offset', entry.offset) + state.SetInt(entry._node, 'size', entry.size) + state.SetInt(entry._node, 'image-pos', entry.image_pos) + if entry.uncomp_size is not None: + state.SetInt(entry._node, 'uncomp-size', entry.uncomp_size) diff --git a/tools/binman/ftest.py b/tools/binman/ftest.py index 89e732fca31..999d8884aca 100644 --- a/tools/binman/ftest.py +++ b/tools/binman/ftest.py @@ -2160,6 +2160,31 @@ class TestFunctional(unittest.TestCase): } self.assertEqual(expected, props)
+ def testCbfsUpdateFdt(self): + """Test that we can update the device tree with CBFS offset/size info""" + self._CheckLz4() + data, _, _, out_dtb_fname = self._DoReadFileDtb('125_cbfs_update.dts', + update_dtb=True) + dtb = fdt.Fdt(out_dtb_fname) + dtb.Scan() + props = self._GetPropTree(dtb, ['offset', 'size', 'image-pos', + 'uncomp-size']) + del props['cbfs/u-boot:size'] + self.assertEqual({ + 'offset': 0, + 'size': len(data), + 'image-pos': 0, + 'cbfs:offset': 0, + 'cbfs:size': len(data), + 'cbfs:image-pos': 0, + 'cbfs/u-boot:offset': 0x38, + 'cbfs/u-boot:uncomp-size': len(U_BOOT_DATA), + 'cbfs/u-boot:image-pos': 0x38, + 'cbfs/u-boot-dtb:offset': 0xb8, + 'cbfs/u-boot-dtb:size': len(U_BOOT_DATA), + 'cbfs/u-boot-dtb:image-pos': 0xb8, + }, props) +
if __name__ == "__main__": unittest.main() diff --git a/tools/binman/test/125_cbfs_update.dts b/tools/binman/test/125_cbfs_update.dts new file mode 100644 index 00000000000..6d2e8a0b8ff --- /dev/null +++ b/tools/binman/test/125_cbfs_update.dts @@ -0,0 +1,21 @@ +// SPDX-License-Identifier: GPL-2.0+ + +/dts-v1/; + +/ { + #address-cells = <1>; + #size-cells = <1>; + + binman { + cbfs { + size = <0x100>; + u-boot { + cbfs-type = "raw"; + cbfs-compress = "lz4"; + }; + u-boot-dtb { + cbfs-type = "raw"; + }; + }; + }; +};