netdev - Re: [net-next PATCH 1/1] drivers: net: cpsw: Add support for new CPSW IP version

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Date:	Wed, 31 Jul 2013 22:34:06 +0200
From:	Richard Cochran <richardcochran@...il.com>
To:	Felipe Balbi <balbi@...com>
Cc:	Mugunthan V N <mugunthanvnm@...com>, netdev@...r.kernel.org,
	davem@...emloft.net, linux-omap@...r.kernel.org
Subject: Re: [net-next PATCH 1/1] drivers: net: cpsw: Add support for new
 CPSW IP version

On Wed, Jul 31, 2013 at 11:26:17PM +0300, Felipe Balbi wrote:
> 
> oh well, we can go on and on with this. Unfortunately we (SW team) don't
> have control over the HW folks. We strongly suggest that they don't
> break SW compatibility, and that's starting to become true.
> 
> You can very well expect next version of CPSW to be SW compatible. If it
> isn't, then TI will send patches to add a new revision check and treat
> it well. We are the first ones to have access to new versions of all
> our IPs anyway.

Okay, so starting with V3 the registers probably won't be moving
around any more. But at the very least your patch should include
macros for the known V3 along with the default case.

Thanks,
Richard


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