diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a.dtsi b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
index b0891ad..9ba135e 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
@@ -184,14 +184,14 @@
 
 	gpt_clk: dummy_gpt_clk {
 		compatible = "fixed-clock";
-		clock-frequency = <20000000>;
+		clock-frequency = <13000000>;
 		#clock-cells = <0>;
 	};
 
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupt-parent = <&gic>;
-		clock-frequency = <40000000>;
+		clock-frequency = <13000000>;
 		interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
 			     <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
 			     <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986b.dtsi b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986b.dtsi
index 544c028..5c882ea 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986b.dtsi
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986b.dtsi
@@ -184,14 +184,14 @@
 
 	gpt_clk: dummy_gpt_clk {
 		compatible = "fixed-clock";
-		clock-frequency = <20000000>;
+		clock-frequency = <13000000>;
 		#clock-cells = <0>;
 	};
 
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupt-parent = <&gic>;
-		clock-frequency = <40000000>;
+		clock-frequency = <13000000>;
 		interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
 			     <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
 			     <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,