Check out the Comments section of the recent post on Tianocore being ported to OpenPOWER:

https://firmwaresecurity.com/2015/10/12/tianocore-for-openpower/#comments

https://github.com/ozbenh/edk2

So there are TWO ports of Tianocore to OpenPOWER, and a few days ago I knew about neither of them.

I wonder if OpenPOWER will officially adopt UEFI as a firmware option for their platform. I’ve heard indirect bragging from IBM that their systems can be 100% fully open source firmware, no blobs.