From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qe0-f53.google.com (mail-qe0-f53.google.com [209.85.128.53]) by yocto-www.yoctoproject.org (Postfix) with ESMTP id 93448E007D2 for ; Wed, 8 Jan 2014 12:30:53 -0800 (PST) Received: by mail-qe0-f53.google.com with SMTP id t7so2311863qeb.12 for ; Wed, 08 Jan 2014 12:30:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; bh=onyTPef8ewdXfIQFawb9geuZZODznuzw4Lc++H6xbkc=; b=os1opwMAP8/9zAvFPT/1oSx6vO/F+mjoZHXjzyAdqxgt7fMWRPZzU5ihHPPYc4nhbA yec0tOqHT6FukWP9XWl5iu0N8cUmF/4+dm/sbL0hJOrjPtByrm1z3aj376UyPoAdZ4Nx RJ4r+k3AQbVsOpnLYdWr369n34EilTLVfJrJaFBaBfXFes03kmxlUQ6TiQGPTYz3eyiH 7CDUIfrRwKOgbXgKLBCouYZkObliICRDM4Wq4DjyEph+pZTB5oqHb9wr1didP+qTGDrI OJagcUb/5qOS5BxxAxXESTFh7fggtxhRXEqVpT0prGAuQIZBlP0EGJ47Pp1ydlm7MhuT bsoQ== X-Received: by 10.49.58.173 with SMTP id s13mr7763041qeq.66.1389213053227; Wed, 08 Jan 2014 12:30:53 -0800 (PST) Received: from goober.local ([75.76.228.60]) by mx.google.com with ESMTPSA id m8sm2721405qac.22.2014.01.08.12.30.52 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 08 Jan 2014 12:30:52 -0800 (PST) Message-ID: <52CDB57B.902@gmail.com> Date: Wed, 08 Jan 2014 14:30:51 -0600 From: John Weber User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: meta-freescale@yoctoproject.org References: In-Reply-To: Subject: Re: Question about u-boot bootargs 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: Wed, 08 Jan 2014 20:30:56 -0000 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Hi Josh,

Bootargs is constructed by other macros present in the default u-boot configuration. Take a look at bootcmd, which automatically runs after the timeout. It runs other commands (mmcargs is one, I think), that do setenv bootargs. You would add your additional kernel command line arguments to that macro.

John

On 1/8/14 2:18 PM, Joshua Kurland wrote:

I have a Wandboard quad and I would like to change the bootargs in order to choose a different display. I am building with Yocto Dora branch, kernel 3.0.35_4.0.0 and U-Boot 2013.10. In this u-boot version I do not see a bootargs variable with printenv. I would like to add 'video=mxcfb0:dev=lcd,SEIKO-WVGA,if=RGB24'. How do I properly edit or add bootargs using this kernel and this version of u-boot?

Thank you,

Josh Kurland
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