eqos: MII bus force auto negotiation
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Authored by renatoalencar.73_gmail.com on Mar 23 2024, 3:45 PM.

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manu
andrew

Summary

This driver doesn't handle auto negotiation, and it may not work although the current PHY may report auto negotiation capability. An way of handling this is to force auto negotiation from the MAC side. In this case, auto negotiation doesn't happen if the interface is initialized with cable on, only after restarting the interface with cable unplugged, or run ifconfig eqos0 media none && ifconfig eqos0 media auto.

Currently tested for RK3566 + YT8511C, on the Orange Pi 3B SBC board.

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rG FreeBSD src repository

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renatoalencar.73_gmail.com created this revision.Mar 23 2024, 3:45 PM

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renatoalencar.73_gmail.com requested review of this revision.Mar 23 2024, 3:45 PM

renatoalencar.73_gmail.com retitled this revision from eqos: Mii bus force auto negotiation to eqos: MII bus force auto negotiation.Mar 23 2024, 3:53 PM

renatoalencar.73_gmail.com edited the summary of this revision. (Show Details)

I'm closing this since I figured this is a hardware bug and not a software one, it turns out the PHY is not responding to changes on the least significant bit of the PHY address, which causes it to be detected as multiple different phys. mii_mediachg will end up isolating it and stopping auto negotiation. Setting phymask hint to 1 will solve this problem.

renatoalencar.73_gmail.com mentioned this in D45600: Add StarFive JH7110's Ethernet (eqos & mcommphy modifications, a new board specific file).Sep 21 2024, 12:48 PM