From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030688AbdEXQJL (ORCPT ); Wed, 24 May 2017 12:09:11 -0400 Received: from mail1.bemta5.messagelabs.com ([195.245.231.147]:51430 "EHLO mail1.bemta5.messagelabs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030623AbdEXQIz (ORCPT ); Wed, 24 May 2017 12:08:55 -0400 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrHKsWRWlGSWpSXmKPExsUSt3Opsa7wBtV Ig4etPBYPr/pbNC9ez2YxZcMHJosHc28yWVzeNYfN4sziXnaL2xMnMzqwe+ycdZfdY//cNewe /X8NPNZvucri8XmTXABrFGtmXlJ+RQJrxp/F9gVvhSt2T9/K3MB4RriLkYtDSGApo8S3W7uZu xg5OdgEDCXmvXnP2MXIwSEioCZxep4+SA2zwH4miR17poPVCAukSLyc+JcdxBYRSJV4dPMrC4 QdJrF+xzc2EJtFQFVi1fYjYDavQIDEsmN3wGqEBOYxS8x8GwBicwoESiyetw0sziggK/GlcTX YfGYBcYlbT+YzgdgSAgISS/acZ4awRSVePv7HCmHLS6z99QQqbi/x+t47FghbX+LR40eMELah xKppB6Di5hJ79y1nBvmLWUBTYv0ufYhVihJTuh+yQ5wpKHFy5hOWCYzis5BcMQuhYxaSjllIO hYwsqxi1ChOLSpLLdI1NNNLKspMzyjJTczM0TU0MNXLTS0uTkxPzUlMKtZLzs/dxAiMWwYg2M F4/rTnIUZJDiYlUd6E5yqRQnxJ+SmVGYnFGfFFpTmpxYcYNTg4BK4cPDKbUYolLz8vVUmCN3u daqSQYFFqempFWmYOMLHAlEpw8CiJ8E4GSfMWFyTmFmemQ6ROMSpKifNWgCQEQBIZpXlwbbBk dolRVkqYlxHoKCGegtSi3MwSVPlXjOIcjErCvHUgU3gy80rgpr8CWswEtNj1rjLI4pJEhJRUA 2Nnsp65oJJxl+QPySdCN+RkvN3VDt9U73Ho3fX4nlHEO/FS5qlF9jWMT1N6P83zrUr9qSot1J Z5uej/8Z0yl5NL1vjcMpN+JspV+Hje8nlGP3OLp84uNc6ZYvb31zXxu7qPbh6yr93255LpDPN bZ3w5vPhepHjbb1+7hFHp17X1n3xuLzDd667EUpyRaKjFXFScCAAUsJSPYQMAAA== X-Env-Sender: stwiss.opensource@diasemi.com X-Msg-Ref: server-3.tower-180.messagelabs.com!1495642130!97812059!1 X-Originating-IP: [94.185.165.51] X-StarScan-Received: X-StarScan-Version: 9.4.12; banners=-,-,- X-VirusChecked: Checked From: Steve Twiss To: Fabio Estevam CC: Greg Kroah-Hartman , Jiri Slaby , LINUX-KERNEL , LINUX-SERIAL , Lucas Stach , "Uwe Kleine-Konig" , Support Opensource Subject: RE: [PATCH V1] serial: imx: revert setup DCEDTE early and ensure DCD and RI irqs to be off Thread-Topic: [PATCH V1] serial: imx: revert setup DCEDTE early and ensure DCD and RI irqs to be off Thread-Index: AQHS08CMDyJLJsr9eUuGzzq+TlSyCKICCmMAgAEbvQCAACokAIAAGpdQgAAG3QCAACiMgA== Date: Wed, 24 May 2017 16:08:50 +0000 Message-ID: <6ED8E3B22081A4459DAC7699F3695FB7018CD8D843@SW-EX-MBX02.diasemi.com> References: <20170523123145.E268B3FAD4@swsrvapps-01.diasemi.com> <6ED8E3B22081A4459DAC7699F3695FB7018CD8D75E@SW-EX-MBX02.diasemi.com> <6ED8E3B22081A4459DAC7699F3695FB7018CD8D7CD@SW-EX-MBX02.diasemi.com> In-Reply-To: Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.20.26.77] x-kse-attachmentfiltering-interceptor-info: protection disabled x-kse-serverinfo: sw-ex-cashub02.diasemi.com, 9 x-kse-antivirus-interceptor-info: scan successful x-kse-antivirus-info: Clean, bases: 24/05/2017 13:50:00 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id v4OG9quE002326 Hi Fabio, On 24 May 2017 14:53 Fabio Estevam wrote, > Subject: Re: [PATCH V1] serial: imx: revert setup DCEDTE early and ensure DCD and RI irqs to be off > On Wed, May 24, 2017 at 9:49 AM, Steve Twiss wrote: > > > I used this tag: jb4.3_1.1.1-ga > > http://git.freescale.com/git/cgit.cgi/imx/uboot-imx.git/commit/?id=jb4.3_1.1.1-ga > > > > This repo is slightly modified for a project I am working on, but it only queries > > the I2C for devices before printing out some messages, so minor changes I > > think. Here's the output from the console: > > I am not able to reproduce it using this same U-Boot version on my > mx6sabresd board: > > https://pastebin.com/ppnrnidr That's very interesting. Once I apply the test change from Uwe, I can get a console trace. > Uwe Kleine-König wrote: > > Can you try to just remove the line > > writel(0, sport->port.membase + UFCR); The differences in the kernel console logs are ... My board : Your board differences Board: i.MX6Q-SABRESD: unknown-board Board: 0x63012 [POR ] : Board: i.MX6Q-SABRESD: unknown-board Board: 0x63011 [POR ] Found PFUZE100! deviceid=10,revid=11 : Found PFUZE100! deviceid=10,revid=10 ... and others, but.. I do not have "console=ttymxc0,115200" in my kernel command line. Yes. I can verify, using the raw linux-next/v4.12-rc2 I get the console error. When I add "console=ttymxc0,115200" to my U-boot environment and the kernel command-line, the kernel console starts working again. That would indicate the test on the i.MX6DL might be misleading, since my colleague ran that using their bootloader set-up. So, my assertion this was only visible on the i.MX6Q could be wrong. There's no way to to check this until tomorrow now. I'll check check on the i.MX6DL using my bootloader environment when I get access to an i.MX6DL board. Regards, Stephen