netdev - Re: [PATCHv2 0/9] macb: add support for Cadence GEM

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Date:	Thu, 24 Mar 2011 17:25:17 +0100
From:	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
To:	Jamie Iles <jamie@...ieiles.com>
Cc:	Nicolas Ferre <nicolas.ferre@...el.com>,
	David Miller <davem@...emloft.net>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Andrew Victor <linux@...im.org.za>,
	Peter Korsgaard <jacmet@...site.dk>
Subject: Re: [PATCHv2 0/9] macb: add support for Cadence GEM

On 17:55 Tue 22 Mar     , Jamie Iles wrote:
> Hi Jean-Christophe,
> 
> On Tue, Mar 22, 2011 at 04:39:17PM +0000, Jamie Iles wrote:
> > Hi Jean-Christophe,
> > 
> > On Tue, Mar 22, 2011 at 05:18:11PM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > > On 11:18 Mon 21 Mar     , Jamie Iles wrote:
> > > > I have an existing tree for this at
> > > > 
> > > > 	git://github.com/jamieiles/linux-2.6-ji.git macb-gem
> > > > 
> > > > based off of 2.6.38 (with your ACK's now added) and I'd be happy with 
> > > > either route.
> > > but we must detect the gem via the version register and ditto for macb for
> > > avr32 and at91
> > > 
> > > so please rebase it over my patch
> > > 
> > > and you get my sob too
> > 
> > Would you mind respinning your patch without the changes to the clk 
> > stuff?  Otherwise we're changing it from compile time to version based, 
> > only to completely remove it in subsequent patches.
> 
> Actually, this patch doesn't work anyway as the version register is 
> being read before the clks are enabled so the device isn't accessible 
> (and the registers haven't yet been ioremap()'d).
yeah I found it also I forget to put he RFC in the patch title as I want just to
give the way to detect it the way to detect it for avr32 and at91
so we can remove the ifdef fully
> 
> > Also, can you confirm that the module ID's that you are using to 
> > differentiate between AT91 and AVR32 won't clash with MACB uses in 
> > other, non-at91/avr32 chips, or that it doesn't matter?
> 
> If this does work, then it would be nice if we made the else path of the 
> RMII AT91 tests also test for avr32 too so we aren't driving the USRIO 
> pins on platforms that aren't at91 but also aren't avr32.  So something 
> the patch below instead.
I'm currently traveling so I can not test it yet will test it next week
but looks good

Best Regards,
J.
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