linux-kernel - Re: [PATCH 1/2] edac: add support for Calxeda highbank memory controller

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Date:	Thu, 7 Jun 2012 14:43:48 +0200
From:	Borislav Petkov <bp@...64.org>
To:	Rob Herring <robherring2@...il.com>
Cc:	Mauro Carvalho Chehab <mchehab@...hat.com>,
	linux-edac@...r.kernel.org, linux-kernel@...r.kernel.org,
	devicetree-discuss@...ts.ozlabs.org
Subject: Re: [PATCH 1/2] edac: add support for Calxeda highbank memory
 controller

On Wed, Jun 06, 2012 at 05:56:40PM -0500, Rob Herring wrote:
> > Hmm... I suspect that memories by DIMM chip select/channel at Calxeda,
> > as it is using just 1 cs/channel. It probably makes more sense to add new layer
> > type(s) to properly represent the way your memory controller addresses it, if
> > Calxeda doesn't work with DIMMs.
> 
> Not sure I follow. DIMMs are supported, but only a newer JEDEC form
> factor (DDR3 72-bit mini DIMM). The h/w pretty much fixed to a single
> 4GB DIMM. The controller is 1 72-bit channel.

Me too, why would this need a new define although those are more-or-less
normal DIMMs (modulo the form factor)?

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