Dear Sandeep C R,

In message CAEX5Uh8eJ18GbSg+C0ctyDOpzoDv=HvZP0QTVSFiTYke4-RktQ@mail.gmail.com you wrote:

I have a powerpc system with u-boot as the boot loader. Is it possible for me to set the speed of the ethernet link while doing a nfs boot? ie. When the nfs boot is happening i want to set the ethernet speed to say 10mbps or 100mbps according to my preference.

No, you don't want to do that. You want to use autonegotiation instead.

Please read the related FAQs (and for example the wikipedia article about autonegotiation and why you run into a lot of problems when not trying to force specific modes, especially when doing so on one side of the link only).

Best regards,

Wolfgang Denk