Hi Simon,
studying the binman integration, some questions/issues popped up:
# Timestamp file to make sure that binman always runs .binman_stamp: FORCE @touch $@
A reason is not provided, neither here nor in the commit log. Is it because external blobs may have changed? I suppose the binman step is always reproducible, right?
Furthermore, files generated by binman are not properly cleaned. I have now
fit@0x280000.fit fit@0x280000.itb
in my build folder after make clean, also that .binman_stamp. The target images are only cleaned when they happen to carry a well-known name - that relates to [1].
I would suggest to give all intermediate files the same prefix, say ".binman_", so that they can be added to the clean rule. Makes sense? But [1] still needs some idea.
Jan
[1] https://www.mail-archive.com/u-boot@lists.denx.de/msg380648.html