binman: Allow entry types to override FDT contents

At present the contents of an FDT (for each phase) are fixed,
determined by the build and provided to Binman as input files.

Provide a means for entry types to provide their own FDT, so that it can
be processed, if needed.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/tools/binman/entry.py b/tools/binman/entry.py
index 752c584c9a3..494b1b1278d 100644
--- a/tools/binman/entry.py
+++ b/tools/binman/entry.py
@@ -1386,3 +1386,15 @@ features to produce new behaviours.
 
     def UpdateSignatures(self, privatekey_fname, algo, input_fname):
         self.Raise('Updating signatures is not supported with this entry type')
+
+    def FdtContents(self, fdt_etype):
+        """Get the contents of an FDT for a particular phase
+
+        Args:
+            fdt_etype (str): Filename of the phase of the FDT to return, e.g.
+                'u-boot-tpl-dtb'
+
+        Returns:
+            bytes: Contents of requested FDT
+        """
+        return self.section.FdtContents(fdt_etype)