From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Hilman Subject: Re: [PATCH RFT 2/2] arm: dts: disable CCI on exynos420 based arndale-octa Date: Mon, 01 Dec 2014 10:50:29 -0800 Message-ID: <7hbnnn5hmy.fsf@deeprootsystems.com> References: <1417186209-5256-1-git-send-email-a.kesavan@samsung.com> <1417186209-5256-2-git-send-email-a.kesavan@samsung.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from mail-pa0-f51.google.com ([209.85.220.51]:42464 "EHLO mail-pa0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752771AbaLASuc (ORCPT ); Mon, 1 Dec 2014 13:50:32 -0500 Received: by mail-pa0-f51.google.com with SMTP id ey11so11540210pad.24 for ; Mon, 01 Dec 2014 10:50:32 -0800 (PST) In-Reply-To: <1417186209-5256-2-git-send-email-a.kesavan@samsung.com> (Abhilash Kesavan's message of "Fri, 28 Nov 2014 20:20:09 +0530") Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: Abhilash Kesavan Cc: linux-arm-kernel@lists.infradead.org, nicolas.pitre@linaro.org, lorenzo.pieralisi@arm.com, punit.agrawal@arm.com, will.deacon@arm.com, mark.rutland@arm.com, kgene@kernel.org, linux-samsung-soc@vger.kernel.org, dianders@chromium.org, olof@lixom.net, kgene.kim@samsung.com, javier.martinez@collabora.co.uk, k.kozlowski@samsung.com, b.zolnierkie@samsung.com, kesavan.abhilash@gmail.com, arnd@arndb.de Abhilash Kesavan writes: > The arndale-octa board was giving "imprecise external aborts" during > boot-up with MCPM enabled. CCI enablement of the boot cluster was found > to be the cause of these aborts (possibly because the secure f/w was not > allowing it). Hence, disable CCI for the arndale-octa board. > > Signed-off-by: Abhilash Kesavan Tested-by: Kevin Hilman Tested on top of next-20141128 with exynos_defconfig on my Octa board and I'm not seeing the imprecise aborts anymore. Thanks, Kevin From mboxrd@z Thu Jan 1 00:00:00 1970 From: khilman@kernel.org (Kevin Hilman) Date: Mon, 01 Dec 2014 10:50:29 -0800 Subject: [PATCH RFT 2/2] arm: dts: disable CCI on exynos420 based arndale-octa In-Reply-To: <1417186209-5256-2-git-send-email-a.kesavan@samsung.com> (Abhilash Kesavan's message of "Fri, 28 Nov 2014 20:20:09 +0530") References: <1417186209-5256-1-git-send-email-a.kesavan@samsung.com> <1417186209-5256-2-git-send-email-a.kesavan@samsung.com> Message-ID: <7hbnnn5hmy.fsf@deeprootsystems.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Abhilash Kesavan writes: > The arndale-octa board was giving "imprecise external aborts" during > boot-up with MCPM enabled. CCI enablement of the boot cluster was found > to be the cause of these aborts (possibly because the secure f/w was not > allowing it). Hence, disable CCI for the arndale-octa board. > > Signed-off-by: Abhilash Kesavan Tested-by: Kevin Hilman Tested on top of next-20141128 with exynos_defconfig on my Octa board and I'm not seeing the imprecise aborts anymore. Thanks, Kevin