I just uploaded a new branch "ebc-uic-consolidate" to the u-boot-ppc4xx custodian repository:

http://www.denx.de/cgi-bin/gitweb.cgi?p=u-boot/u-boot-ppc4xx.git;a=shortlog;...

This work does quite a lot of cleanup to the common 4xx headers. Also the UIC interrupt handler has undergone bigger changes too. This is tested on all sorts of 4xx variants (Sequoia, Kilauea, Canyonlands, Taishan). I don't expect real problems on other existing platforms. But please give it a try and let me know if you have any comments.

My plan is to push this into the master branch for merging into Wolfgangs repo in the next merge window in a few weeks.

Best regards, Stefan

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