[PATCH 0/3] riscv: dts: spacemit: add cpu scaling for 3 boards

[PATCH 0/3] riscv: dts: spacemit: add cpu scaling for 3 boards

[Andre Heider]

This series adds cpu scaling for 3 boards, each authored and tested by a
community member on their device:

- k1-musepi-pro
  fixed include order  
  v1: https://lore.kernel.org/all/20260614122812.2287506-1-a.heider@gmail.com/

- orangepi-rv2
  unchanged, included here because it's still unmerged, probably just
  fell through the cracks
  v2: https://lore.kernel.org/spacemit/20260615-k1-cpufreq-orangepi-rv2-v2-1-237f006e580b@gmail.com/

- k1-orangepi-r2s
  new patch from Vincent, cc'ed
  origin: https://github.com/dhewg/openwrt/pull/3

Andre Heider (1):
  riscv: dts: spacemit: k1-musepi-pro: add cpu scaling

Jonatan Hazell (1):
  riscv: dts: spacemit: orangepi-r2s: Add cpu scaling for K1 SoC

Vincent Legoll (1):
  riscv: dts: spacemit: orangepi-rv2: Add cpu scaling for K1 SoC

 .../riscv/boot/dts/spacemit/k1-musepi-pro.dts | 35 ++++++++++++++++++-
 .../boot/dts/spacemit/k1-orangepi-r2s.dts     | 35 ++++++++++++++++++-
 .../boot/dts/spacemit/k1-orangepi-rv2.dts     | 35 ++++++++++++++++++-
 3 files changed, 102 insertions(+), 3 deletions(-)

-- 
2.53.0


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[PATCH 1/3] riscv: dts: spacemit: k1-musepi-pro: add cpu scaling

[Andre Heider]

Enable CPU DVFS by including the OPP table and wiring the CPU nodes to the
CPU regulator supply.

Signed-off-by: Andre Heider <a.heider@gmail.com>
---
 .../riscv/boot/dts/spacemit/k1-musepi-pro.dts | 35 ++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
index 246f8f2ab62b..23f32a8a3d45 100644
--- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
@@ -8,6 +8,7 @@
 /dts-v1/;
 
 #include "k1.dtsi"
+#include "k1-opp.dtsi"
 #include "k1-pinctrl.dtsi"
 
 / {
@@ -99,6 +100,38 @@ &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>;
+};
+
 &eth0 {
 	phy-handle = <&rgmii0>;
 	phy-mode = "rgmii-id";
@@ -178,7 +211,7 @@ pmic@41 {
 		dldoin2-supply = <&buck5>;
 
 		regulators {
-			buck1 {
+			buck1_0v9: buck1 {
 				regulator-min-microvolt = <500000>;
 				regulator-max-microvolt = <1050000>;
 				regulator-ramp-delay = <5000>;
-- 
2.53.0


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[PATCH 2/3] riscv: dts: spacemit: orangepi-rv2: Add cpu scaling for K1 SoC

[Andre Heider]

From: Vincent Legoll <vincent.legoll@gmail.com>

Enable CPU DVFS on OrangePi RV2

Signed-off-by: Vincent Legoll <vincent.legoll@gmail.com>
---
 .../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 b907a1396b21..dc6836ff7f1c 100644
--- a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts
@@ -7,6 +7,7 @@
 /dts-v1/;
 
 #include "k1.dtsi"
+#include "k1-opp.dtsi"
 #include "k1-pinctrl.dtsi"
 
 / {
@@ -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 = <1050000>;
 				regulator-ramp-delay = <5000>;
-- 
2.53.0


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[PATCH 3/3] riscv: dts: spacemit: orangepi-r2s: Add cpu scaling for K1 SoC

[Andre Heider]

From: Jonatan Hazell <jonatanh@hotmail.com>

Enable CPU DVFS on OrangePi R2S by including the shared K1 OPP tables
and wiring the CPU cores to the P1 PMIC's buck1 rail.

This mirrors the existing cpu-scaling support for the Banana Pi BPI-F3
and OrangePi RV2. Tested on the R2S hardware.

Signed-off-by: Jonatan Hazell <jonatanh@hotmail.com>
---
 .../boot/dts/spacemit/k1-orangepi-r2s.dts     | 35 ++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
index 2d1ba34cb00e..6ebd4334410e 100644
--- a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
@@ -6,6 +6,7 @@
 /dts-v1/;
 
 #include "k1.dtsi"
+#include "k1-opp.dtsi"
 #include "k1-pinctrl.dtsi"
 
 / {
@@ -50,6 +51,38 @@ vcc5v0_usb: regulator-vcc5v0-usb {
 	};
 };
 
+&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>;
+};
+
 &combo_phy {
 	status = "okay";
 };
@@ -132,7 +165,7 @@ pmic@41 {
 		dldoin2-supply = <&buck5>;
 
 		regulators {
-			buck1 {
+			buck1_0v9: buck1 {
 				regulator-min-microvolt = <500000>;
 				regulator-max-microvolt = <1050000>;
 				regulator-ramp-delay = <5000>;
-- 
2.53.0


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