netdev - Re: [PATCH] cs89x0: add support for i.MX31ADS ARM board

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Message-ID: <20080916124422.GC18556@xi.wantstofly.org>
Date:	Tue, 16 Sep 2008 14:44:22 +0200
From:	Lennert Buytenhek <buytenh@...tstofly.org>
To:	Gilles Chanteperdrix <gilles.chanteperdrix@...omai.org>
Cc:	Jeff Garzik <jeff@...zik.org>, netdev@...r.kernel.org,
	Russell King <rmk@....linux.org.uk>
Subject: Re: [PATCH] cs89x0: add support for i.MX31ADS ARM board

On Sun, Sep 14, 2008 at 04:13:45PM +0200, Gilles Chanteperdrix wrote:

> > I don't have the original patch in my netdev box anymore, but what
> > seems to me should be done is to add a platform driver interface to
> > the cs89x0 driver, like how most other non-PCI non-other-autoconf-
> > supporting-bus net drivers do it.  (There aren't too many -- grep
> > for platform_driver_register in drivers/net/*)
> > 
> > Then the knowledge about I/O addresses and IRQ lines can live in the
> > platform code (where it belongs) instead of having it all in the driver
> > (where it doesn't belong).  And all the IXDP2351 and IXDP2X01 ifdefs
> > can disappear as well.  And the ->readword()/->writeword() hacks that
> > need to be done for IXDP2351 and IXDP2X01 and PNX can then just be an
> > (optional) set of platform data methods, with a fallback to the default
> > one if they aren't passed in.
> > 
> > The question is whether someone wants to step up and do that work.
> > cs89x0 has seen a lot of drive-by patching by people looking to satisfy
> > their needs, but noone has stepped up to give it the proper love and
> > care that it deserves.
> > 
> > Gilles, are you willing to do the platform driver conversion?  If not,
> > then I guess we should just merge this patch as-is (after you explain
> > why you need to stub out reset_chip() on your board, as no other board
> > seems to need this?).
> 
> Hi Lennert,
> 
> When I published this patch, I had access to an i.MX31ADS board, and
> getting Linux to work on this board was just a necessity to get my job
> done. I did this by copying the parts I needed working (the serial
> console and ethernet driver) from the Freescale tree.
> 
> Now, I am no longer working on this, so I can not test any modification.
> And I do not even know why people at Freescale did what they did.

I guess then we should just wait until the Freescale people submit it.
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