[PATCH] riscv: dts: spacemit: orangepi-rv2: Add cpu scaling for K1, SoC
Vincent Legoll <[email protected]>
| Newsgroups | dev.linux.lists.spacemit,org.infradead.lists.linux-riscv,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel,org.kernel.vger.linux-pm |
|---|---|
| Message-ID | <[email protected]> |
[RESEND] as I cannot see yesterday's Hello, I tested (on OrangePi RV2) the attached patch applied over spacemit/for-next + Shuwei Wu's V3 series. This is a copy/paste of Shuwei Wu's work, so I don't know if I can submit this with my SoB or if it should be done differently, please advise. Anyways, you can add my: Tested-by: Vincent Legoll <[email protected]> # OrangePi-RV2 To the relevant patches from your series, if that's useful, because it looks like it is working properly: On Void linux (musl libc): uname -a Linux opirv2 7.1.0-rc1-00043-gb860bca13be4 #14 SMP PREEMPT Sat Jun 13 11:02:13 CEST 2026 riscv64 GNU/Linux awk --version | head -1 GNU Awk 5.3.2, API 4.0 echo userspace > /sys/devices/system/cpu/cpufreq/policy0/scaling_governor echo 1600000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed time awk 'BEGIN{for(i=0;i<1000000;i++){}}' real 0m0.300s user 0m0.299s sys 0m0.001s echo 1228800 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed time awk 'BEGIN{for(i=0;i<1000000;i++){}}' real 0m0.432s user 0m0.429s sys 0m0.004s echo 1000000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed time awk 'BEGIN{for(i=0;i<1000000;i++){}}' real 0m0.476s user 0m0.476s sys 0m0.001s echo 819000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed time awk 'BEGIN{for(i=0;i<1000000;i++){}}' real 0m0.582s user 0m0.581s sys 0m0.001s echo 614400 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed time awk 'BEGIN{for(i=0;i<1000000;i++){}}' real 0m0.778s user 0m0.773s sys 0m0.005s -- Vincent Legoll
0001-riscv-dts-spacemit-orangepi-rv2-Add-cpu-scaling-for-.patch
(text/x-patch, 1.6 KB)
From 9924789655ae5f4f98e7a5cdc3df3f34e7bfb659 Mon Sep 17 00:00:00 2001 From: Vincent Legoll <[email protected]> Date: Sat, 13 Jun 2026 10:49:34 +0200 Subject: [PATCH] riscv: dts: spacemit: orangepi-rv2: Add cpu scaling for K1 SoC Enable CPU DVFS on OrangePi RV2 This is a copy/paste from Shuwei Wu's BPI-F3 DTS modifications Signed-off-by: Vincent Legoll <[email protected]> --- .../boot/dts/spacemit/k1-orangepi-rv2.dts | 35 ++++++++++++++++++- 1 file changed, 34 insertions(+), 1 deletion(-) diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts index 7c49bce427f3..62d25f579af6 100644 --- a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts +++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts @@ -8,6 +8,7 @@ #include "k1.dtsi" #include "k1-pinctrl.dtsi" +#include "k1-opp.dtsi" / { model = "OrangePi RV2"; @@ -80,6 +81,38 @@ &combo_phy { status = "okay"; }; +&cpu_0 { + cpu-supply = <&buck1_0v9>; +}; + +&cpu_1 { + cpu-supply = <&buck1_0v9>; +}; + +&cpu_2 { + cpu-supply = <&buck1_0v9>; +}; + +&cpu_3 { + cpu-supply = <&buck1_0v9>; +}; + +&cpu_4 { + cpu-supply = <&buck1_0v9>; +}; + +&cpu_5 { + cpu-supply = <&buck1_0v9>; +}; + +&cpu_6 { + cpu-supply = <&buck1_0v9>; +}; + +&cpu_7 { + cpu-supply = <&buck1_0v9>; +}; + &emmc { bus-width = <8>; mmc-hs400-1_8v; @@ -162,7 +195,7 @@ pmic@41 { dldoin2-supply = <&buck5>; regulators { - buck1 { + buck1_0v9: buck1 { regulator-min-microvolt = <500000>; regulator-max-microvolt = <3450000>; regulator-ramp-delay = <5000>; -- 2.54.0