From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by yocto-www.yoctoproject.org (Postfix, from userid 118) id C69AFE0086E; Wed, 28 Jan 2015 02:08:23 -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 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] X-Greylist: delayed 434 seconds by postgrey-1.32 at yocto-www; Wed, 28 Jan 2015 02:08:09 PST Received: from correo.horus.es (correo.horus.es [2.139.157.236]) by yocto-www.yoctoproject.org (Postfix) with ESMTP id DA66DE00757 for ; Wed, 28 Jan 2015 02:08:09 -0800 (PST) Received: from [172.30.250.46] (172.30.250.46) by horus27 (Axigen) with ESMTPA id 2FF4B0; Wed, 28 Jan 2015 11:00:49 +0100 Message-ID: <54C8B348.2060900@horus.es> Date: Wed, 28 Jan 2015 11:00:40 +0100 From: =?UTF-8?B?Sm9zZSBNwqogRmVycmVyaXJvIENhcm5vdGE=?= User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: "meta-freescale@yoctoproject.org" X-AxigenVirus-Level: 1 X-AxigenSpam-Level: 2 Subject: iMX6Q Linux 3.10.17 Trying to read registers at boot time 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, 28 Jan 2015 10:08:23 -0000 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Hello I was derived here from : https://community.freescale.com/message/473511#473511 My kernel stops loading when I try to access to registers in mach-imx6q.c. I think it has something to do with iMX6 security system. Access to that registers at that moment seems to be denied and the kernel load crashes. I am looking for how to change that with no luck. I found that dts configures AIPS registers like this: aipstz@0207c000 { reg = <0x207c000 0x4000>; }; but I changed it to: aipstz@0207c000 { reg = <0x207c000 0x77777777>; }; and I yet have not access to read that same AIPSTZ1 register from mach-imx6q.c Best regards, Jose