binman: Support updating all device tree files
Binman currently supports updating the main device tree with things like
the position of each entry. Extend this support to SPL and TPL as well,
since they may need (a subset of) this information.
Also adjust DTB output files to have a .out extension since this seems
clearer than having a .dtb extension with 'out' in the name somwhere.
Also add a few missing comments and update the DT setup code to use
ReadFile and WriteFile().
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/binman/entry.py b/tools/binman/entry.py
index e5f55774..f922107 100644
--- a/tools/binman/entry.py
+++ b/tools/binman/entry.py
@@ -192,6 +192,17 @@
state.SetInt(self._node, 'image-pos', self.image_pos)
def ProcessFdt(self, fdt):
+ """Allow entries to adjust the device tree
+
+ Some entries need to adjust the device tree for their purposes. This
+ may involve adding or deleting properties.
+
+ Returns:
+ True if processing is complete
+ False if processing could not be completed due to a dependency.
+ This will cause the entry to be retried after others have been
+ called
+ """
return True
def SetPrefix(self, prefix):