From 8dba7a692cab40f05a7c9ccfe5f93fd278e2c888 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Seitz?= <github.joeterminal@xoxy.net>
Date: Thu, 30 Apr 2026 07:01:06 +0200
Subject: [PATCH] mediatek: update device tree of zbt-z8103ax for nmbm
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Nand has a valid mediatek nand badblock management (NMBM) signature.
Gets used for non-UBI partions BL2, u-boot-env, Factory and FIT.

Signed-off-by: Jörg Seitz <github.joeterminal@xoxy.net>
Link: https://github.com/openwrt/openwrt/pull/21626
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
 .../mediatek/dts/mt7981b-zbtlink-zbt-z8103ax.dtsi      | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/target/linux/mediatek/dts/mt7981b-zbtlink-zbt-z8103ax.dtsi b/target/linux/mediatek/dts/mt7981b-zbtlink-zbt-z8103ax.dtsi
index 6b4134595b..6e8cff0bb5 100644
--- a/target/linux/mediatek/dts/mt7981b-zbtlink-zbt-z8103ax.dtsi
+++ b/target/linux/mediatek/dts/mt7981b-zbtlink-zbt-z8103ax.dtsi
@@ -2,6 +2,11 @@
 
 /dts-v1/;
 
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/pinctrl/mt65xx.h>
+
 #include "mt7981b.dtsi"
 
 / {
@@ -84,7 +89,6 @@
 			linux,default-trigger = "phy1tpt";
 		};
 	};
-
 };
 
 &eth {
@@ -184,6 +188,10 @@
 		spi-tx-bus-width = <4>;
 		spi-rx-bus-width = <4>;
 
+		mediatek,nmbm;
+		mediatek,bmt-max-ratio = <1>;
+		mediatek,bmt-max-reserved-blocks = <64>;
+
 		partitions {
 			compatible = "fixed-partitions";
 			#address-cells = <1>;