Re: PowerPC Ethernet issue

[Robert Morse <rmorse@weldtechcorp.com>]

Thanks,
	That is what I thought I needed to do.

Robert
On Sat, 2009-06-06 at 17:30 +0200, Edgar Grimberg wrote:
> Hi,
> 
> >
> >        Looking at the situation, it seems like I would need to
> > enable/configure the interrupts for the PHYs.  and when a change of
> > duplex is detected cause a reset of the MAC.  Has anyone done anything
> > like this before.  Looking through the ethernet drivers and phy drivers
> > I do not see anyone doing this (I admit not all).
> >
> 
> This looks like the only place to detect if the connection parameters
> have changed (link, duplex, speed).
> 
> >        Does my idea seem sound, or am I off in the woods somewhere.  I know
> > about this duplex issue from another design.  Where we had a commercial
> > rtos, that I found out they did not do this and caused a lot of issues,
> > I thought the device driver should of handled it, but they said it was
> > up to the application to control the bit.  So I do want to repeat the
> > same issue.
> 
> I have some code so show that, but it might not fit your device. The
> idea is to stop and start the ethernet device in the PHY's DSR. In the
> start function, if the ethernet is not already started, you can
> renegotiate the connection parameters.
> The code is at:
> 
> http://www.ecosforge.net/ecosforge/trunk/ecos_mpc8313/packages/devs/eth/powerpc/quicc2pro/current/src/tsec.c
> 
> search for:
> 
> tsec_eth_start
> phy_dsr
> phyAutoNegociate
> 
> Best regards,
> Edgar