From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AC7AAC43381 for ; Mon, 4 Mar 2019 15:57:41 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 792D0206B6 for ; Mon, 4 Mar 2019 15:57:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Yo8WosGN"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b="EMEg5YVr" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 792D0206B6 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lunn.ch Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=xDPDFtuumLjisP4iIOhAB6YLO5aIC/ffRxQXhsuCQEg=; b=Yo8WosGNq/ET5X U/zqX+uhKV4DzJnbfmNTHf4fAS1eW1X19arvfpJlDYS9j1z0jaJjKn81tulGfNHztXDy+YkS3tJb0 Ih8htC9ElXePF8x4pvG9nn9CBU22T4ZrbaxwU0nNZ3VyQjKg2GNWHKC0XwfXMHhKoG2BhHTBm2jgD X6KHZ4b1SGQiiv6hs3IjjJxpKGzaTldF7SYtD83xC9Pumalpx/ky7ZgXOsM3Wqex7uHhZDCzgX48X dgdG5A4ir49d/pxKuPTtvXo/H+FygY5mJRcLEmOKZH+V9rmu+xXya6cGY79LO7HGH9Uy7n+OBwLRf Z45AnDGtSoQRnsAVmhew==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1h0pyC-0002nA-7y; Mon, 04 Mar 2019 15:57:36 +0000 Received: from vps0.lunn.ch ([185.16.172.187]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1h0py9-0002mh-Px for linux-arm-kernel@lists.infradead.org; Mon, 04 Mar 2019 15:57:35 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=umlH92Y2fAWpSqITWg17/Xx8KWtnLk03BPkDSyo8gcg=; b=EMEg5YVr6vy7k1P8OY3aa5ygbQ WMdjHBiXj/Iue6p5hIPy7MSas0LoFJaBwAZJTMZJUvBqOJZ2EO5em5FYu5NJa6QR0cF4FNwJ1GYwP n0ZId5bRXMitzzjEAsjxGO38ohlJIBavj+z7Bw365IS+/zwuwOVC6tS84lIlgGkjjHTs=; Received: from andrew by vps0.lunn.ch with local (Exim 4.89) (envelope-from ) id 1h0py8-0005Oa-0m; Mon, 04 Mar 2019 16:57:32 +0100 Date: Mon, 4 Mar 2019 16:57:32 +0100 From: Andrew Lunn To: Embedded Engineer Subject: Re: Unstable Kernel behavior on an ARM based board Message-ID: <20190304155732.GF18622@lunn.ch> References: <20190302113651.zerdonykcvv5ex3e@shell.armlinux.org.uk> <20190302115729.zbowssfwf4j7jf22@shell.armlinux.org.uk> <20190302123907.qoe46qs6qmx7qnjs@shell.armlinux.org.uk> <453072a9-52e2-7591-750f-624ca27e0bbf@gmx.net> <20190304140042.GE26378@lunn.ch> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190304_075733_990586_3CC7206D X-CRM114-Status: GOOD ( 10.71 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Mar 04, 2019 at 08:27:21PM +0500, Embedded Engineer wrote: > On Mon, Mar 4, 2019 at 7:00 PM Andrew Lunn wrote: > > > > > Do you suggest board redesign is only option left? > > > > Have you checked your cache configuration when you jump into the > > kernel? > > Thanks alot Andrew. I have tried disabling cache by adding > CONFIG_SYS_ICACHE_OFF, CONFIG_SYS_DCACHE_OFF & CONFIG_SYS_L2CACHE_OFF > to u-boot config but the boards hangs after SPL by giving the > following output: > > U-Boot SPL 2014.10-rc2 (Mar 04 2019 - 20:19:17) Using caches while inside uboot is fine. You just need to ensure they are off when you jump into the kernel. It could be, u boot actually requires caches enabled. The memory controller might not be running yet, so you cannot use RAM. The code to get the RAM going has to run from cache? Andrew _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel