From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754191AbdBASXS (ORCPT ); Wed, 1 Feb 2017 13:23:18 -0500 Received: from mail-pf0-f180.google.com ([209.85.192.180]:34426 "EHLO mail-pf0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752845AbdBASXR (ORCPT ); Wed, 1 Feb 2017 13:23:17 -0500 From: Bjorn Andersson To: Andy Gross , David Brown Cc: linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, John Stultz , Mart Raudsepp , Stephen Boyd Subject: [PATCH] arm64: dts: apq8016-sbc: Add ramoops Date: Wed, 1 Feb 2017 02:24:24 -0800 Message-Id: <20170201102424.4017-1-bjorn.andersson@linaro.org> X-Mailer: git-send-email 2.11.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Declare a ramoops memory segment to aid debugging for those without UART access. Verified to carry console log when holding volume down for 15 seconds. I was unable to find any ramoops-like memory region used in the 8916 downstream kernels, so the picked region is the last MB in System RAM. No memory region for ramoops-like support was found downstrea, so the arbitrarily picked region is the last MB of System RAM. Cc: John Stultz Cc: Mart Raudsepp Cc: Stephen Boyd Signed-off-by: Bjorn Andersson --- Enable CONFIG_PSTORE, CONFIG_PSTORE_CONSOLE and CONFIG_PSTORE_RAM. arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi b/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi index a45bc1dba686..f93edf57f249 100644 --- a/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi +++ b/arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi @@ -35,6 +35,17 @@ stdout-path = "serial0"; }; + reserved-memory { + ramoops@bff00000{ + compatible = "ramoops"; + reg = <0x0 0xbff00000 0x0 0x100000>; + + record-size = <0x20000>; + console-size = <0x20000>; + ftrace-size = <0x20000>; + }; + }; + soc { dma@7884000 { status = "okay"; -- 2.11.0