diff --git a/package/boot/uboot-mediatek/patches/451-add-bpi-r3-mini.patch b/package/boot/uboot-mediatek/patches/451-add-bpi-r3-mini.patch
index 20bd366d6a..b3506cd75c 100644
--- a/package/boot/uboot-mediatek/patches/451-add-bpi-r3-mini.patch
+++ b/package/boot/uboot-mediatek/patches/451-add-bpi-r3-mini.patch
@@ -493,7 +493,7 @@
 +	spi_nand@0 {
 +		compatible = "spi-nand";
 +		reg = <0>;
-+		spi-max-frequency = <52000000>;
++		spi-max-frequency = <20000000>;
 +
 +		partitions {
 +			compatible = "fixed-partitions";
diff --git a/target/linux/mediatek/dts/mt7986a-bananapi-bpi-r3-mini.dts b/target/linux/mediatek/dts/mt7986a-bananapi-bpi-r3-mini.dts
index bdc122cc66..f044c46180 100644
--- a/target/linux/mediatek/dts/mt7986a-bananapi-bpi-r3-mini.dts
+++ b/target/linux/mediatek/dts/mt7986a-bananapi-bpi-r3-mini.dts
@@ -452,7 +452,7 @@
 		#size-cells = <1>;
 		reg = <0>;
 
-		spi-max-frequency = <52000000>;
+		spi-max-frequency = <20000000>;
 		spi-tx-bus-width = <4>;
 		spi-rx-bus-width = <4>;