diff --git a/patches/0075-ramips-reduce-yuncore-ax820-SPI-clock-speed-to-20MHz.patch b/patches/0075-ramips-reduce-yuncore-ax820-SPI-clock-speed-to-20MHz.patch
new file mode 100644
index 00000000..bb662aa1
--- /dev/null
+++ b/patches/0075-ramips-reduce-yuncore-ax820-SPI-clock-speed-to-20MHz.patch
@@ -0,0 +1,26 @@
+From 594261d2f696136b9cb1d63fd4706248b5cd9ffa Mon Sep 17 00:00:00 2001
+From: John Crispin <john@phrozen.org>
+Date: Wed, 17 Jan 2024 09:58:18 +0100
+Subject: [PATCH] ramips: reduce yuncore ax820 SPI clock speed to 20MHz
+
+Signed-off-by: John Crispin <john@phrozen.org>
+---
+ target/linux/ramips/dts/mt7621_yuncore_ax820.dts | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/target/linux/ramips/dts/mt7621_yuncore_ax820.dts b/target/linux/ramips/dts/mt7621_yuncore_ax820.dts
+index 51fd358095..b2f55b9be0 100644
+--- a/target/linux/ramips/dts/mt7621_yuncore_ax820.dts
++++ b/target/linux/ramips/dts/mt7621_yuncore_ax820.dts
+@@ -87,7 +87,7 @@
+ 	flash@0 {
+ 		compatible = "jedec,spi-nor";
+ 		reg = <0>;
+-		spi-max-frequency = <80000000>;
++		spi-max-frequency = <20000000>;
+ 		m25p,fast-read;
+ 
+ 		partitions {
+-- 
+2.34.1
+