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Linux/DP83867CS: PHY Ping failed after 3.18 kernel transplantation of dp83867cs

Part Number: DP83867CS

Tool/software: Linux

HI,

Please help me to see.

Does dp83867 support four-line auto-negotiation?

How to set it up to meet the four-line auto-negotiation? Is it okay to change registers? Or can changing the four-wire hardware circuit satisfy auto-negotiation?

If dp83867 does not support four-line auto-negotiation, then we can only consider eight-line auto-negotiation, but eight-line auto-negotiation is not what we want.

(We tried Qualcomm's Phy, which can support 4-line auto-negotiation. We want to know if TI's dp83867 Phy can support 4-line auto-negotiation.)

Thank you!