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 new file mode 100644 index 00000000..86e4ba12 --- /dev/null +++ b/root/target/linux/ipq40xx/patches-5.4/999-ipq40xx-unlock-cpu-frequency.patch @@ -0,0 +1,53 @@ +From: William +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 +--- +--- 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), + { } + }; +