[PATCH 3/3] riscv: dts: spacemit: Define the P1 PMIC regulators for Milk-V Jupiter

From: Javier Martinez Canillas

Date: Sat Dec 06 2025 - 08:47:30 EST


Define the SpacemiT P1 PMIC voltage regulators and their constraints.

The power management hardware design on the Milk-V Jupiter is identical to
the Banana Pi BPI-F3, so the DT Nodes were taken from k1-bananapi-f3.dts.

Signed-off-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
---

.../boot/dts/spacemit/k1-milkv-jupiter.dts | 110 ++++++++++++++++++
1 file changed, 110 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts b/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts
index 5babed4d7094..800a112d5d70 100644
--- a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts
@@ -95,6 +95,116 @@ &i2c8 {
pinctrl-0 = <&i2c8_cfg>;
pinctrl-names = "default";
status = "okay";
+
+ pmic@41 {
+ compatible = "spacemit,p1";
+ reg = <0x41>;
+ interrupts = <64>;
+ vin-supply = <&reg_vcc_4v>;
+
+ regulators {
+ buck1 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <3450000>;
+ regulator-ramp-delay = <5000>;
+ regulator-always-on;
+ };
+
+ buck2 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <3450000>;
+ regulator-ramp-delay = <5000>;
+ regulator-always-on;
+ };
+
+ buck3_1v8: buck3 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-ramp-delay = <5000>;
+ regulator-always-on;
+ };
+
+ buck4 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-ramp-delay = <5000>;
+ regulator-always-on;
+ };
+
+ buck5 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <3450000>;
+ regulator-ramp-delay = <5000>;
+ regulator-always-on;
+ };
+
+ buck6 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <3450000>;
+ regulator-ramp-delay = <5000>;
+ regulator-always-on;
+ };
+
+ aldo1 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <3400000>;
+ regulator-boot-on;
+ };
+
+ aldo2 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <3400000>;
+ };
+
+ aldo3 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <3400000>;
+ };
+
+ aldo4 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <3400000>;
+ };
+
+ dldo1 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <3400000>;
+ regulator-boot-on;
+ };
+
+ dldo2 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <3400000>;
+ };
+
+ dldo3 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <3400000>;
+ };
+
+ dldo4 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <3400000>;
+ regulator-always-on;
+ };
+
+ dldo5 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <3400000>;
+ };
+
+ dldo6 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <3400000>;
+ regulator-always-on;
+ };
+
+ dldo7 {
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <3400000>;
+ };
+ };
+ };
};

&uart0 {
--
2.52.0