From 1b0c105b7f4d11f251b57b68e45ed65dadd1b209 Mon Sep 17 00:00:00 2001
From: Bjorn Andersson <bjorn.andersson@linaro.org>
Date: Wed, 1 Feb 2017 02:24:24 -0800
Subject: [PATCH] arm64: dts: apq8016-sbc: Add ramoops

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.

No memory region for ramoops-like support was found downstream, so the
arbitrarily picked region is the last MB of System RAM.

Cc: John Stultz <john.stultz@linaro.org>
Cc: Mart Raudsepp <leio@gentoo.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
---
 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 eac5389f2f38..a17f5b9a5de6 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";
-- 
2.20.1