linux-kernel - Re: [RFC PATCH v2] edac: synopsys: Added EDAC support for zynq ddr ecc controller

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Date:	Thu, 10 Apr 2014 12:10:54 +0200
From:	Michal Simek <michal.simek@...inx.com>
To:	Borislav Petkov <bp@...en8.de>
CC:	Michal Simek <michal.simek@...inx.com>,
	Michal Simek <monstr@...str.eu>,
	Punnaiah Choudary Kalluri 
	<punnaiah.choudary.kalluri@...inx.com>,
	<dougthompson@...ssion.com>, <linux-edac@...r.kernel.org>,
	<robh+dt@...nel.org>, <pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	<rob@...dley.net>, <sorenb@...inx.com>,
	<devicetree@...r.kernel.org>, <linux-doc@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <kpc528@...il.com>,
	<kalluripunnaiahchoudary@...il.com>, <punnaia@...inx.com>
Subject: Re: [RFC PATCH v2] edac: synopsys: Added EDAC support for zynq ddr
 ecc controller

On 04/10/2014 12:00 PM, Borislav Petkov wrote:
> On Thu, Apr 10, 2014 at 11:49:57AM +0200, Michal Simek wrote:
>> I agree with you that we can use shorter name. I have checked this
>> with Punnaiah and I can't see any problem to have more edac drivers
>> in the system. For zynq there is primary ddr controller which is
>> target by this driver. Then we are talking about L2 in another thread.
>> Because zynq has programmable logic next to chip where you can add
>> soft memory controller (we have these hw designs) on the same bus then
>> there could be others edac drivers. I would say how many you like till
>> pins on the package.
> 
> I knew you were gonna say something like that! :-)

:-) good. We are getting famous by non standard cases.

> 
> Then you'll have to check whether edac can even stomach more than one
> drivers in parallel. TTBOMK, no one has ever done this so far... Yadda
> yadda.

It can there is just a problem with some IDs. :-)

> But before you do all that, you need to check whether edac is really
> what you're looking for, as I put it in my other mail.

If edac is the interface for reporting problems like this. It is probably
just a limitation of current edac core and should be fixed.

Thanks,
Michal


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