This release uses ppsi as ptp engine for wrpc_sw (SPEC hw):
https://www.ohwr.org/project/ppsi/uploads/aab45eccdbf5c0f36a02628efaab87f5/ppsi-v-13.01-ppsi-for-wrpc_sw.tgz

Please report any kind of problems by using the online tool:
https://www.ohwr.org/project/ppsi/issues