netdev - Re: [PATCH] ibm_newemac: Add support for 460EX/GT-type MAL rx-channel handling

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Message-Id: <1207228220.10388.323.camel@pasglop>
Date:	Fri, 04 Apr 2008 00:10:20 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Stefan Roese <sr@...x.de>
Cc:	netdev@...r.kernel.org, linuxppc-dev@...abs.org
Subject: Re: [PATCH] ibm_newemac: Add support for 460EX/GT-type MAL 
	rx-channel handling


On Thu, 2008-04-03 at 14:35 +0200, Stefan Roese wrote:
> On Thursday 03 April 2008, Benjamin Herrenschmidt wrote:
> > On Thu, 2008-04-03 at 13:45 +0200, Stefan Roese wrote:
> > > On some 4xx PPC's (e.g. 460EX/GT), the rx channel number is a multiple
> > > of 8 (e.g. 8 for EMAC1, 16 for EMAC2), but enabling in MAL_RXCASR needs
> > > the divided by 8 value for the bitmask.
> >
> > Sounds ok, but I wonder if we ever have a MAL with more than 8 chans, do
> > we need to make this shift conditional to some device tree prop ?
> 
> I suggest we postpone such a conditional setup until we see such a MAL. OK?

Agreed. I got a bit carried away..

Ben.


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