diff mbox series

[v2,2/2] arm64: dts: rockchip: Enable regulators for Radxa E20C

Message ID 20250318120003.2340652-3-amadeus@jmu.edu.cn (mailing list archive)
State New
Headers show
Series arm64: dts: rockchip: Add pwm nodes for RK3528 | expand

Commit Message

Chukun Pan March 18, 2025, noon UTC 
Enable pwm and fixed regulators for Radxa E20C. The pwm regulator is
used to power the CPU and GPU. Note that the LPDDR4 voltage is 1.1V.

Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>
---
 .../boot/dts/rockchip/rk3528-radxa-e20c.dts   | 72 +++++++++++++++++++
 1 file changed, 72 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts b/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts
index 57a446b5cbd6..159b55aa970d 100644
--- a/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts
@@ -100,6 +100,16 @@  vcc_3v3: regulator-3v3-vcc {
 		vin-supply = <&vcc5v0_sys>;
 	};
 
+	vcc_ddr: regulator-vcc-ddr {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_ddr";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <1100000>;
+		regulator-max-microvolt = <1100000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
 	vcc5v0_sys: regulator-5v0-vcc-sys {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc5v0_sys";
@@ -108,6 +118,56 @@  vcc5v0_sys: regulator-5v0-vcc-sys {
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
 	};
+
+	vdd_0v9: regulator-0v9-vdd {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_0v9";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <900000>;
+		regulator-max-microvolt = <900000>;
+		vin-supply = <&vcc5v0_sys>;
+	};
+
+	vdd_arm: regulator-vdd-arm {
+		compatible = "pwm-regulator";
+		pwms = <&pwm1 0 5000 1>;
+		pwm-supply = <&vcc5v0_sys>;
+		regulator-name = "vdd_arm";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <746000>;
+		regulator-max-microvolt = <1201000>;
+		regulator-settling-time-up-us = <250>;
+	};
+
+	vdd_logic: regulator-vdd-logic {
+		compatible = "pwm-regulator";
+		pwms = <&pwm2 0 5000 1>;
+		pwm-supply = <&vcc5v0_sys>;
+		regulator-name = "vdd_logic";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <705000>;
+		regulator-max-microvolt = <1006000>;
+		regulator-settling-time-up-us = <250>;
+	};
+};
+
+&cpu0 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&cpu1 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&cpu2 {
+	cpu-supply = <&vdd_arm>;
+};
+
+&cpu3 {
+	cpu-supply = <&vdd_arm>;
 };
 
 &pinctrl {
@@ -132,6 +192,18 @@  wan_led_g: wan-led-g {
 	};
 };
 
+&pwm1 {
+	pinctrl-0 = <&pwm1m0_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&pwm2 {
+	pinctrl-0 = <&pwm2m0_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
 &saradc {
 	vref-supply = <&vcc_1v8>;
 	status = "okay";