From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by yocto-www.yoctoproject.org (Postfix, from userid 118) id 784DAE0095C; Fri, 1 May 2015 05:31:08 -0700 (PDT) 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 autolearn=ham version=3.3.1 X-Spam-HAM-Report: * -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] Received: from mail.chez-thomas.org (mail.mlbassoc.com [65.100.170.105]) by yocto-www.yoctoproject.org (Postfix) with ESMTP id 0FEAAE0049A for ; Fri, 1 May 2015 05:31:02 -0700 (PDT) Received: by mail.chez-thomas.org (Postfix, from userid 1998) id 178D1F811E8; Fri, 1 May 2015 06:31:02 -0600 (MDT) Received: from [192.168.1.114] (zeus [192.168.1.114]) by mail.chez-thomas.org (Postfix) with ESMTP id 87AE6F811E5; Fri, 1 May 2015 06:31:01 -0600 (MDT) Message-ID: <5543721D.2080407@mlbassoc.com> Date: Fri, 01 May 2015 06:31:25 -0600 From: Gary Thomas User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 MIME-Version: 1.0 To: Nikolay Dimitrov References: <553814A4.5070000@mlbassoc.com> <55383A59.805@mail.bg> <55436C3C.6070807@mail.bg> In-Reply-To: <55436C3C.6070807@mail.bg> Cc: "meta-freescale@yoctoproject.org" Subject: Re: [meta-fsl-arm-extra] Booting RIoTboard 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: Fri, 01 May 2015 12:31:08 -0000 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit On 2015-05-01 06:06, Nikolay Dimitrov wrote: > Hi Gary, > > On 04/23/2015 03:18 AM, Nikolay Dimitrov wrote: >> Hi Gary, >> >> On 04/23/2015 12:37 AM, Gary Thomas wrote: >>> I've just built an image for the i.MX6DL/RIoTboard using the latest >>> master (fido). I had to add this line to local.conf: >>> MACHINE_EXTRA_RRECOMMENDS_remove_imx6dl-riotboard = >>> "fsl-alsa-plugins" as the fsl-alsa-plugins won't currently build with >>> Linux-4.0 >>> >>> Now I'm trying to boot the image. I've copied it to my SD card and >>> set the switches appropriately (I found two web pages about this and >>> they have conflicting information! The answer seems to be >>> SW1-SW8=On/Off/On/Off/Off/On/Off/On) >> >> I have 2 riotboards both booting from sdcards, here are their >> configurations: >> - slot J6 (USDHC2), SW1-8 = On/Off/On/Off/Off/On/On/Off >> - slot J7 (USDHC3), SW1-8 = On/Off/On/Off/Off/On/Off/On > > Just wanted to follow-up on this topic, probably due to curiosity. I > did some experiments and I can agree with you that the switch positions > definitely don't follow the docs (1 = On, 0 = Off, X = don't care): > > J6 boot ok: 10100 XXX > > J7 boot ok: 10100 010 > 10100 110 I think more correctly this would be: J6 boot: 10100 X0X J7 boot: 10100 X1X > > So I guess this somewhat explains the confusion. > > I've looked at the schematic some months ago to map which boot signals > goes to which switch, so the only way to explain this unexpected (to > me) behavior is either a mistake on my side when tracing the signals or > something different about the imx6s bootrom. Or me reading the wrong RM > :). -- ------------------------------------------------------------ Gary Thomas | Consulting for the MLB Associates | Embedded world ------------------------------------------------------------