On Sun, Jul 19, 2020 at 14:43, Chris Healy <cphe...@gmail.com> wrote: > On Sat, Jul 18, 2020 at 8:22 AM Marek Behun <marek.be...@nic.cz> wrote: >> >> On Sat, 18 Jul 2020 17:05:14 +0200 >> Andrew Lunn <and...@lunn.ch> wrote: >> >> > > If the traces were broken between the fiber module and the SERDES, I >> > > should not see these counters incrementing. >> > >> > Plus it is reproducible on multiple boards, of different designs. >> > >> > This is somehow specific to the 6390X ports 9 and 10. >> > >> > Andrew >> >> Hmm. >> >> What about the errata setup? >> It says: >> /* The 6390 copper ports have an errata which require poking magic >> * values into undocumented hidden registers and then performing a >> * software reset. >> */ >> But then the port_hidden_write function is called for every port in the >> function mv88e6390_setup_errata, not just for copper ports. Maybe Chris >> should try to not write this hidden register for SerDes ports. > > I just disabled the mv88e6390_setup_errata all together and this did > not result in any different behaviour on this broken fiber port.
Hi Chris, Did you manage to track this down? I am seeing the exact same issue. I have tried both a 1000base-x SFP and a copper 1000base-T and get the same result on both - transmit is fine but rx only works up to the SERDES, no rx MAC counters are moving.
