The HPS firmware binaries in this repository are built from:

https://chromium.googlesource.com/chromiumos/platform/hps-firmware

which is licensed under the Apache License 2.0, combined with other packages whose licenses and copyright notices are included in the licenses/third-party/ subdirectory.

The contents of the licenses/third-party/ subdirectory was generated by the hps-firmware ebuild in Chromium OS.