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How to disable auto negotiation of PHY DP83640 in stmmac driver or other place?

Question asked by HuJunhu on Feb 4, 2015
Latest reply on Jul 28, 2015 by HuJunhu

HI, there

I need to disable auto negotiation of phy DP83640 in stmmac driver or maybe other place (uclinux 2014R1), but I donot know how .

The reason why I need to do this is that our customer board referring to bf609-ezkit has  PHY DP83640 worked  in Fiber mode.

According to DP83640's datasheet, in Fiber mode it can work at 100 Mb only and does not support Auto-Negotiation.

The Auto-Negotiation will result in the phy working at 10Mb speed so that the host PC cannot find the board.

Does anyone have any advice to cope this?

Thanks,

Junhu Hu

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