From: John Stultz <john.stultz@linaro.org>
Date: Mon, 22 Aug 2016 22:48:05 +0000 (-0700)
Subject: arm64: dts: hikey: Add pstore support for HiKey
X-Git-Tag: v4.9-rc1~75^2~13^2~7
X-Git-Url: http://git.cascardo.info/?p=cascardo%2Flinux.git;a=commitdiff_plain;h=813a731522361467da9acabbb855c9a1cbbf5d5b

arm64: dts: hikey: Add pstore support for HiKey

This patch reserves some memory in the DTS and sets up a
pstore device tree node to enable pstore support on HiKey.

Cc: Kees Cook <keescook@chromium.org>
Cc: Guodong Xu <guodong.xu@linaro.org>
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
---

diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
index 49d53ff0314b..9e4e06acce8b 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
+++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
@@ -32,6 +32,7 @@
 	 *  0x05f0,1000 - 0x05f0,1fff: Reboot reason
 	 *  0x06df,f000 - 0x06df,ffff: Mailbox message data
 	 *  0x0740,f000 - 0x0740,ffff: MCU firmware section
+	 *  0x21f0,0000 - 0x21ff,ffff: pstore/ramoops buffer
 	 *  0x3e00,0000 - 0x3fff,ffff: OP-TEE
 	 */
 	memory@0 {
@@ -40,9 +41,25 @@
 		      <0x00000000 0x05f00000 0x00000000 0x00001000>,
 		      <0x00000000 0x05f02000 0x00000000 0x00efd000>,
 		      <0x00000000 0x06e00000 0x00000000 0x0060f000>,
-		      <0x00000000 0x07410000 0x00000000 0x36bf0000>;
+		      <0x00000000 0x07410000 0x00000000 0x1aaf0000>,
+		      <0x00000000 0x22000000 0x00000000 0x1c000000>;
 	};
 
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		ramoops@0x21f00000 {
+			compatible = "ramoops";
+			reg = <0x0 0x21f00000 0x0 0x00100000>;
+			record-size	= <0x00020000>;
+			console-size	= <0x00020000>;
+			ftrace-size	= <0x00020000>;
+		};
+	};
+
+
 	reboot-mode-syscon@5f01000 {
 		compatible = "syscon", "simple-mfd";
 		reg = <0x0 0x05f01000 0x0 0x00001000>;