From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by yocto-www.yoctoproject.org (Postfix, from userid 118) id CC050E00A54; Wed, 5 Aug 2015 12:15:28 -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=-2.7 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, FREEMAIL_FROM, RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.1 X-Spam-HAM-Report: * -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low * trust * [193.201.172.118 listed in list.dnswl.org] * 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider * (picmaster[at]mail.bg) * -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] * -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's * domain * 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily * valid * -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature Received: from mx2.mail.bg (mx2.mail.bg [193.201.172.118]) by yocto-www.yoctoproject.org (Postfix) with ESMTP id 32E9EE009EF for ; Wed, 5 Aug 2015 12:15:26 -0700 (PDT) Received: from [192.168.0.62] (unknown [93.152.143.60]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mx2.mail.bg (Postfix) with ESMTPSA id 15DF760008CD; Wed, 5 Aug 2015 22:15:25 +0300 (EEST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=mail.bg; s=default; t=1438802125; bh=XePEUoXzzx1DGhuszM196L5C4kr0jRrIONMLQOvCweg=; h=Message-ID:Date:From:MIME-Version:To:CC:Subject:References: In-Reply-To:Content-Type:Content-Transfer-Encoding; b=nv/Py02ByOaTsdrxXqo+qGjng68gn1+qaFhpAFW/vCcu24cKWGvfIVi5DGdobN1bw L/Wr4y5jEnTCRVi/VqgO7kbNxlVe+XjDUHXW2DVJV8dPQpxXnGd8yU/Y6X2Ucl3jzd 12gB+vsPsWvLTfjbnxOcJvyVD1M4N3MfSMY7vnhk= Message-ID: <55C260CD.1060607@mail.bg> Date: Wed, 05 Aug 2015 22:15:25 +0300 From: Nikolay Dimitrov User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.8.0 MIME-Version: 1.0 To: justin chaise References: <55C2208A.6020709@mail.bg> In-Reply-To: Cc: meta-freescale@yoctoproject.org Subject: Re: help with linux-fslc 3.18.7 stops at "Uncompressing Linux... done, booting the kernel" 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, 05 Aug 2015 19:15:28 -0000 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Hi Justin, On 08/05/2015 06:37 PM, justin chaise wrote: > Thanks Nikolay, > It looks like that discussion was about a 'missing' dtb file, device > tree therefor no terminal to display kernel bootup info. > > I use the command in u-boot to pass the blob location in sdram. > bootz 0x40400000 - 0x40700000 > my boot arguments are > bootargs=earlyprintk console=ttyAMA0,115200n8 mem=nopentium > > I dont think that the kernel ever gets to that point because it seem > to lockup when the mmu is enabled. > head.S - command > mcr p15, 0, r0, c1, c0, 0 @ write control reg I'm not an assembly/MMU guru, but if this opcode is executed properly on another imx233 board (like the Olinuxino), this could probably means that the 8MB memory is too small? I've never worked on project with such tight memory budget and can't confirm how easy is to get things working there. > > To see what would happen I did comment out that line and the kernel > continued on for a little while, finding the device tree blob. > All of my debugging says that this line locks up the cpu. > I don't believe that the kernel ever gets to the point of using the blob. > Am I completely wrong here? Hmm. Can you please check the kernels for Olinuxino boards (the imx233-based ones) in Yocto and Buildroot: Yocto, branch fido: linux-4.1 Buildroot, branch master: linux-3.18.2 If you have any of these boards handy (imx233-olinuxino-maxi, imx233- olinuxino-mini, imx233-olinuxino-micro, imx233-olinuxino-nano) you can build yocto/buildroot image and test whether it boots OK, and then you can compare the DTs with yours (you can also compare the board schematics if you need). > > I have not updated my code from linux-fslc since June (30 days old > code) this year because it looks like a lot of changes are going on to > up to linux 4.x. > https://github.com/Freescale/linux-fslc.git > https://github.com/Freescale/u-boot-fslc.git > > On Wed, Aug 5, 2015 at 8:41 AM, Nikolay Dimitrov wrote: >> Hi Justin, >> >> Please check this Yocto discussion from May 2015: >> >> https://lists.yoctoproject.org/pipermail/meta-freescale/2015-May/013953.html >> >> Regards, >> Nikolay > > > Regards, Nikolay