diff --git a/root/target/linux/ipq40xx/patches-5.4/999-ipq40xx-unlock-cpu-frequency.patch b/root/target/linux/ipq40xx/patches-5.4/999-ipq40xx-unlock-cpu-frequency.patch
deleted file mode 100755
index 86e4ba12..00000000
--- a/root/target/linux/ipq40xx/patches-5.4/999-ipq40xx-unlock-cpu-frequency.patch
+++ /dev/null
@@ -1,53 +0,0 @@
-From: William <gw826943555@qq.com>
-Subject: [PATCH] ipq40xx: improve CPU clock
-Date: Tue, 15 Dec 2020 15:26:35 +0800
-
-This patch will match the clock-latency-ns values in the device tree 
-for those found inside the OEM device tree and kernel source code and 
-unlock 896Mhz CPU operating points.
-
-Signed-off-by: William <gw826943555@qq.com>
----
---- a/arch/arm/boot/dts/qcom-ipq4019.dtsi
-+++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi
-@@ -114,20 +114,24 @@
- 
- 		opp-48000000 {
- 			opp-hz = /bits/ 64 <48000000>;
--			clock-latency-ns = <256000>;
-+			clock-latency-ns = <100000>;
- 		};
- 		opp-200000000 {
- 			opp-hz = /bits/ 64 <200000000>;
--			clock-latency-ns = <256000>;
-+			clock-latency-ns = <100000>;
- 		};
- 		opp-500000000 {
- 			opp-hz = /bits/ 64 <500000000>;
--			clock-latency-ns = <256000>;
-+			clock-latency-ns = <100000>;
- 		};
- 		opp-716000000 {
- 			opp-hz = /bits/ 64 <716000000>;
--			clock-latency-ns = <256000>;
-+			clock-latency-ns = <100000>;
-  		};
-+		opp-896000000 {
-+			opp-hz = /bits/ 64 <896000000>;
-+			clock-latency-ns = <100000>;
-+		};
- 	};
- 
- 	memory {
---- a/drivers/clk/qcom/gcc-ipq4019.c
-+++ b/drivers/clk/qcom/gcc-ipq4019.c
-@@ -579,6 +579,9 @@ static const struct freq_tbl ftbl_gcc_ap
- 	F(632000000, P_DDRPLLAPSS, 1, 0, 0),
- 	F(672000000, P_DDRPLLAPSS, 1, 0, 0),
- 	F(716000000, P_DDRPLLAPSS, 1, 0, 0),
-+	F(768000000, P_DDRPLLAPSS, 1, 0, 0),
-+	F(823000000, P_DDRPLLAPSS, 1, 0, 0),
-+	F(896000000, P_DDRPLLAPSS, 1, 0, 0),
- 	{ }
- };
-