This is not "adding SEC 3.1 support". This patch is saying that the 8572
DTS was using the *wrong* SEC version. If that's true, you need to
explain why it was wrong.
especially since, and according to "MPC8572E PowerQUICCTM III
Integrated Host Processor Family Reference Manual, Rev. 2", the 8572
has a SEC 3.0.
Kim