From fd28f0ce04ab44c12190d0fda8062d7abc3cba26 Mon Sep 17 00:00:00 2001
From: Daniel Barlow <dan@telent.net>
Date: Wed, 1 Jan 2025 14:11:22 +0000
Subject: [PATCH] rt3200 needs pmsg-size set in its dts for persistent logging

---
 devices/belkin-rt3200/default.nix      | 6 +++++-
 devices/belkin-rt3200/pstore-pmsg.dtsi | 8 ++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)
 create mode 100644 devices/belkin-rt3200/pstore-pmsg.dtsi

diff --git a/devices/belkin-rt3200/default.nix b/devices/belkin-rt3200/default.nix
index 671f010e..3451e455 100644
--- a/devices/belkin-rt3200/default.nix
+++ b/devices/belkin-rt3200/default.nix
@@ -113,7 +113,8 @@
   };
 
   module = {pkgs, config, lib, lim, ... }:
-    let firmware = pkgs.stdenv.mkDerivation {
+    let inherit (lib) mkIf;
+        firmware = pkgs.stdenv.mkDerivation {
           name = "wlan-firmware";
           phases = ["installPhase"];
           installPhase = ''
@@ -268,6 +269,9 @@
             "${openwrt.src}/target/linux/mediatek/dts"
             "${config.system.outputs.kernel.modulesupport}/arch/arm64/boot/dts/mediatek/"
           ];
+          includes = mkIf config.logging.persistent.enable [
+            ./pstore-pmsg.dtsi
+          ];
         };
 
         # - 0x000000000000-0x000008000000 : "spi-nand0"
diff --git a/devices/belkin-rt3200/pstore-pmsg.dtsi b/devices/belkin-rt3200/pstore-pmsg.dtsi
new file mode 100644
index 00000000..36977b2f
--- /dev/null
+++ b/devices/belkin-rt3200/pstore-pmsg.dtsi
@@ -0,0 +1,8 @@
+/ {
+	reserved-memory {
+		/* make sure address matches upstream  */
+		ramoops@42ff0000 {
+			pmsg-size = <0x10000>;
+		};
+	};
+};