> Is there something I am fundementally misunderstanding? Yes. The binary blob handling the link training procedure needs not just the firmware portion impleme

> Is there something I am fundementally misunderstanding? Yes. The binary blob handling the link training procedure needs not just the firmware portion implementing the link training (i.e. generate test signals, observe link quality) but also the pre-obtained measurement data. So, to re-implement it you need to have a deep understanding about the entire hardware stack, knowledge that isn't even made available under NDA.