10.07.2015 11:46, Sebastien Rannou пишет: > On Fri, 10 Jul 2015, Stas Sergeev wrote: > >> 10.07.2015 00:15, Florian Fainelli пишет: >>> Then, if the in-band status indication is not reliable (which really >>> should be completely understood), >> Agree! >> But this is not something I can help with. >> Sebastien Rannou reports the problem, please ask him whatever >> you see fits to get a better understanding of a problem. >> The fact that his HW does not generate the inband status, is >> _my own guess_. > > Yes, I confirm that my HW does not generate an in-band status. AFAIK, it's > a PHY that aggregates 4xSGMIIs to 1xQSGMII ; the MAC side of the PHY (with > inband status) is connected to the switch through QSGMII, and in this context > we are on the media side of the PHY. Hmm, interesting. So if I parse the above correctly, you have something like 88E1340S set up into a mode when SGMII is used as media interface and QSGMII as system interface (terms are from datasheet page 5), then you connect the media interface to armada-xp and system interface to the switch. I wonder if it is the right thing to do. AFAIK you could as well set up armada-xp into QSGMII mode and connect that to switch. The driver would then disable the use of inband status and everything would be fine. Either way, your use-case proves that only DT can decide the use of an inband status. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
