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. Marek
