From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bjorn Andersson 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> Return-path: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Andy Gross , David Brown Cc: linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, John Stultz , Mart Raudsepp , Stephen Boyd List-Id: devicetree@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 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html