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[209.132.180.67]) by mx.google.com with ESMTP id nv9si1539498pbb.95.2014.03.05.00.15.04; Wed, 05 Mar 2014 00:15:04 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-samsung-soc-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751511AbaCEIPD (ORCPT + 8 others); Wed, 5 Mar 2014 03:15:03 -0500 Received: from mail-pd0-f171.google.com ([209.85.192.171]:52014 "EHLO mail-pd0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751441AbaCEIPC (ORCPT ); Wed, 5 Mar 2014 03:15:02 -0500 Received: by mail-pd0-f171.google.com with SMTP id r10so740026pdi.16 for ; Wed, 05 Mar 2014 00:15:01 -0800 (PST) X-Received: by 10.66.251.42 with SMTP id zh10mr5346185pac.84.1394007301757; Wed, 05 Mar 2014 00:15:01 -0800 (PST) Received: from linaro.sisodomain.com ([115.113.119.130]) by mx.google.com with ESMTPSA id ac5sm5216950pbc.37.2014.03.05.00.14.58 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 05 Mar 2014 00:15:01 -0800 (PST) From: Tushar Behera To: linux-samsung-soc@vger.kernel.org Cc: kgene.kim@samsung.com Subject: [PATCH 1/2] ARM: dts: Disable MDMA1 node for Arndale-octa board Date: Wed, 5 Mar 2014 13:39:06 +0530 Message-Id: <1394006947-26126-1-git-send-email-tushar.behera@linaro.org> X-Mailer: git-send-email 1.7.9.5 Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: list List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org X-Removed-Original-Auth: Dkim didn't pass. X-Original-Sender: tushar.behera@linaro.org X-Original-Authentication-Results: mx.google.com; spf=neutral (google.com: 209.85.220.175 is neither permitted nor denied by best guess record for domain of patch+caf_=patchwork-forward=linaro.org@linaro.org) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org X-Google-Group-Id: 836684582541 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , MDMA1 can support both secure and non-secure AXI transactions. When this is enabled in the kernel for boards that run in secure mode, we get imprecise external aborts causing the kernel to oops. Unhandled fault: imprecise external abort (0x1406) at 0x00000000 Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007 Suggested-by: Javi Merino Signed-off-by: Tushar Behera Tested-by: Javi Merino --- arch/arm/boot/dts/exynos5420-arndale-octa.dts | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts index f509e8f..810ec73 100644 --- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts +++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts @@ -361,4 +361,16 @@ gpio-key,wakeup; }; }; + + amba { + mdma1: mdma@11C10000 { + /* + * MDMA1 can support both secure and non-secure + * AXI transactions. When this is enabled in the kernel + * for boards that run in secure mode, we are getting + * imprecise external aborts causing the kernel to oops. + */ + status = "disabled"; + }; + }; };