[U-Boot] Disable features

[Wolfgang Denk]

Dear Derek Ou,

In message <49FA2FFD.3000506 at siconix.com> you wrote:
> 
> Yes, CONFIG_RESET_PHY_R is defined by default.  And I can see it linking to
> the eth_init and then macb_init which results in the auto-negotiation.  
> I am going to
> comment it out and test it.  But what is the use for this config?  Why 
> does ATMEL
> define it in many of their boards?

It makes no sense to me to reset the PHY when no network command is
being used. I imagine this might be a workaround for broken Linux
drivers which do not correctly initialize the hardware themself.

I guess Jean-Cristophe knows this better than we. Jean-Cristophe ?

Best regards,

Wolfgang Denk

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