From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by yocto-www.yoctoproject.org (Postfix, from userid 118) id 1BD37E00823; Tue, 27 Jan 2015 15:19:09 -0800 (PST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on yocto-www.yoctoproject.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 X-Spam-HAM-Report: * -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no * trust * [188.165.33.202 listed in list.dnswl.org] * -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] X-Greylist: delayed 8844 seconds by postgrey-1.32 at yocto-www; Tue, 27 Jan 2015 15:19:03 PST Received: from 13.mo3.mail-out.ovh.net (13.mo3.mail-out.ovh.net [188.165.33.202]) by yocto-www.yoctoproject.org (Postfix) with ESMTP id D01BDE00753 for ; Tue, 27 Jan 2015 15:19:03 -0800 (PST) Received: from mail630.ha.ovh.net (b6.ovh.net [213.186.33.56]) by mo3.mail-out.ovh.net (Postfix) with SMTP id 3BC6BFF9E90 for ; Tue, 27 Jan 2015 21:51:37 +0100 (CET) Received: from b0.ovh.net (HELO queueout) (213.186.33.50) by b0.ovh.net with SMTP; 27 Jan 2015 22:51:37 +0200 Received: from tal33-3-82-233-81-124.fbx.proxad.net (HELO e6520eb.localdomain) (eric%eukrea.com@82.233.81.124) by ns0.ovh.net with SMTP; 27 Jan 2015 22:51:36 +0200 Date: Tue, 27 Jan 2015 21:51:35 +0100 From: Eric =?UTF-8?B?QsOpbmFyZA==?= To: Nikolay Dimitrov Message-ID: <20150127215135.6138c753@e6520eb.localdomain> In-Reply-To: <54C7F3B3.3080409@mail.bg> References: <54C16AB6.20605@mail.bg> <54C2B900.8000807@mail.bg> <54C74EE4.8070308@mail.bg> <54C7BC84.90104@mail.bg> <02BDCB585301A044B5DBBDB58DDFDA01188D46@dor-sms-xch01.digi.com> <54C7F3B3.3080409@mail.bg> Organization: =?UTF-8?B?RXVrcsOpYQ==?= Electromatique X-Mailer: Claws Mail 3.11.1 (GTK+ 2.24.24; x86_64-redhat-linux-gnu) MIME-Version: 1.0 X-Ovh-Tracer-Id: 18039168308371369283 X-Ovh-Remote: 82.233.81.124 (tal33-3-82-233-81-124.fbx.proxad.net) X-Ovh-Local: 213.186.33.20 (ns0.ovh.net) X-OVH-SPAMSTATE: OK X-OVH-SPAMSCORE: -100 X-OVH-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrfeejkedrvdeiucetufdoteggodetrfcurfhrohhfihhlvgemucfqggfjnecuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrfeejkedrvdeiucetufdoteggodetrfcurfhrohhfihhlvgemucfqggfjnecuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd Cc: "meta-freescale@yoctoproject.org" , Otavio Salvador Subject: Re: imx6 silent memory corruption X-BeenThere: meta-freescale@yoctoproject.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Usage and development list for the meta-fsl-* layers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Jan 2015 23:19:09 -0000 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi Nikolay, Le Tue, 27 Jan 2015 22:23:15 +0200, Nikolay Dimitrov a =C3=A9crit : > On 01/27/2015 07:40 PM, Gonzalez, Alex wrote: > > Nikolay, > > > > Assuming this is a custom board, if you are using different memory or w= ith a different configuration from the reference designs, you may need to c= hange the memory calibration to suit the hardware. Freescale support can pr= ovide an application note that explains how to perform the calibration over= a representative sample of boards. >=20 > Yes, this is a custom board. I've already did the DDR3 calibration for > this design and validated it with 48h testing with the Freescale DDR > stress test tool (available on the IMX Community site). >=20 are you sure of the stability of your power supplies under loard (not only the memories' one) ? best regards Eric