From: Zane Li <Zane_Li@wiwynn.com>
Date: Tue, 16 Sep 2025 03:40:35 +0000 (+0800)
Subject: ARM: dts: aspeed: yosemite4: allocate ramoops for kernel panic
X-Git-Tag: v6.19-rc1~100^2~33^2~15
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f4c7b62be298662cbeb329c7914642b17ee938ce;p=thirdparty%2Fkernel%2Flinux.git

ARM: dts: aspeed: yosemite4: allocate ramoops for kernel panic

Reserve a ramoops memory region in the Yosemite4 device tree so that
kernel panic logs can be preserved across reboots. This helps with
post-mortem debugging and crash analysis.

Signed-off-by: Zane Li <zane_li@wiwynn.com>
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
---

diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts
index 60b98d602e805..e4172be84e7fe 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-yosemite4.dts
@@ -49,6 +49,20 @@
 		reg = <0x80000000 0x80000000>;
 	};
 
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+		ramoops@b8dfa000 {
+			compatible = "ramoops";
+			reg = <0xb8dfa000 0x6000>;
+			record-size = <0x2000>;
+			console-size = <0x2000>;
+			pmsg-size = <0x2000>;
+			max-reason = <1>;
+		};
+	};
+
 	iio-hwmon {
 		compatible = "iio-hwmon";
 		io-channels = <&adc0 0>, <&adc0 1>, <&adc0 2>, <&adc0 3>,