On Wed, Aug 24, 2005 at 07:05:28PM +0000, James Chapman wrote:
> I hadn't realized the mdio spin-wait could take 100us on this chip. In 
> that case it makes sense to use the chip's MII status registers instead. 
> At the same time, now that Andy Fleming's PHY abstraction code is 
> available, the MII support should probably be changed over as BenH 
> suggested.
> 
> This patch series was done 6 months ago and unfortunately I no longer 
> have access to mv643xx hardware to test with. Can someone help? Perhaps 
> the switch to Andy's MII abstraction layer could be submitted as a 
> separate patch on top of this series?

Even previous to this patch, a link-up event does 4 reads of PHY
registers, each averaging about 100uS spin delay.  This patch adds
a couple more reads.

I'll take a stab at code to use the PHY Abstraction Layer.  At least
there, if I understand correctly, the delays can be sleeps rather than
spins.

Bottom line: the current patch should be dropped for now.

-Dale
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to