Stewart Smith of IBM has a new blog post on how to compile your own firmware for the OpenPOWER-based IBM S822LC:
[…] IBM (my employer) recently announced the new S822LC for HPC POWER8+NVLINK NVIDIA P100 GPUs server. The “For HPC” suffix on the model number is significant, as the S822LC is a different machine. What makes the “for HPC” variant different is that the POWER8 CPU has (in addition to PCIe), logic for NVLink to connect the CPU to NVIDIA GPUs.[…]
https://www.flamingspork.com/blog/2016/09/12/compiling-your-own-firmware-for-the-s822lc-for-hpc/
Firmware Security 