diff options
Diffstat (limited to 'tools/binman/etype/fit.py')
| -rw-r--r-- | tools/binman/etype/fit.py | 164 |
1 files changed, 0 insertions, 164 deletions
diff --git a/tools/binman/etype/fit.py b/tools/binman/etype/fit.py deleted file mode 100644 index 75712f4409..0000000000 --- a/tools/binman/etype/fit.py +++ /dev/null @@ -1,164 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0+ -# Copyright (c) 2016 Google, Inc -# Written by Simon Glass <sjg@chromium.org> -# -# Entry-type module for producing a FIT -# - -from collections import defaultdict, OrderedDict -import libfdt - -from binman.entry import Entry -from dtoc import fdt_util -from dtoc.fdt import Fdt -from patman import tools - -class Entry_fit(Entry): - """Entry containing a FIT - - This calls mkimage to create a FIT (U-Boot Flat Image Tree) based on the - input provided. - - Nodes for the FIT should be written out in the binman configuration just as - they would be in a file passed to mkimage. - - For example, this creates an image containing a FIT with U-Boot SPL: - - binman { - fit { - description = "Test FIT"; - - images { - kernel@1 { - description = "SPL"; - os = "u-boot"; - type = "rkspi"; - arch = "arm"; - compression = "none"; - load = <0>; - entry = <0>; - - u-boot-spl { - }; - }; - }; - }; - }; - - Properties: - fit,external-offset: Indicates that the contents of the FIT are external - and provides the external offset. This is passsed to mkimage via - the -E and -p flags. - - """ - def __init__(self, section, etype, node): - """ - Members: - _fit: FIT file being built - _fit_content: dict: - key: relative path to entry Node (from the base of the FIT) - value: List of Entry objects comprising the contents of this - node - """ - super().__init__(section, etype, node) - self._fit = None - self._fit_content = defaultdict(list) - self._fit_props = {} - - def ReadNode(self): - self._ReadSubnodes() - super().ReadNode() - - def _ReadSubnodes(self): - def _AddNode(base_node, depth, node): - """Add a node to the FIT - - Args: - base_node: Base Node of the FIT (with 'description' property) - depth: Current node depth (0 is the base node) - node: Current node to process - - There are two cases to deal with: - - hash and signature nodes which become part of the FIT - - binman entries which are used to define the 'data' for each - image - """ - for pname, prop in node.props.items(): - if pname.startswith('fit,'): - self._fit_props[pname] = prop - else: - fsw.property(pname, prop.bytes) - - rel_path = node.path[len(base_node.path):] - has_images = depth == 2 and rel_path.startswith('/images/') - for subnode in node.subnodes: - if has_images and not (subnode.name.startswith('hash') or - subnode.name.startswith('signature')): - # This is a content node. We collect all of these together - # and put them in the 'data' property. They do not appear - # in the FIT. - entry = Entry.Create(self.section, subnode) - entry.ReadNode() - self._fit_content[rel_path].append(entry) - else: - with fsw.add_node(subnode.name): - _AddNode(base_node, depth + 1, subnode) - - # Build a new tree with all nodes and properties starting from the - # entry node - fsw = libfdt.FdtSw() - fsw.finish_reservemap() - with fsw.add_node(''): - _AddNode(self._node, 0, self._node) - fdt = fsw.as_fdt() - - # Pack this new FDT and scan it so we can add the data later - fdt.pack() - self._fdt = Fdt.FromData(fdt.as_bytearray()) - self._fdt.Scan() - - def ObtainContents(self): - """Obtain the contents of the FIT - - This adds the 'data' properties to the input ITB (Image-tree Binary) - then runs mkimage to process it. - """ - data = self._BuildInput(self._fdt) - if data == False: - return False - uniq = self.GetUniqueName() - input_fname = tools.GetOutputFilename('%s.itb' % uniq) - output_fname = tools.GetOutputFilename('%s.fit' % uniq) - tools.WriteFile(input_fname, data) - tools.WriteFile(output_fname, data) - - args = [] - ext_offset = self._fit_props.get('fit,external-offset') - if ext_offset is not None: - args += ['-E', '-p', '%x' % fdt_util.fdt32_to_cpu(ext_offset.value)] - tools.Run('mkimage', '-t', '-F', output_fname, *args) - - self.SetContents(tools.ReadFile(output_fname)) - return True - - def _BuildInput(self, fdt): - """Finish the FIT by adding the 'data' properties to it - - Arguments: - fdt: FIT to update - - Returns: - New fdt contents (bytes) - """ - for path, entries in self._fit_content.items(): - node = fdt.GetNode(path) - data = b'' - for entry in entries: - if not entry.ObtainContents(): - return False - data += entry.GetData() - node.AddData('data', data) - - fdt.Sync(auto_resize=True) - data = fdt.GetContents() - return data |