Commit dce01d85 authored by Aurelien Jarno's avatar Aurelien Jarno Committed by Yixun Lan
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riscv: dts: spacemit: enable USB 3 ports on Milk-V Jupiter 



Enable the DWC3 USB 3.0 controller (USB#2 port in the K1 datasheet) and
its associated combo_phy (USB 3 PHY) and usbphy2 (USB 2 PHY) on the
Milk-V Jupiter board.

The board uses a VLI VL817 hub, providing four ports. Two are routed to
the 3.0 type-A connectors, and two to the F_USB3 front USB header. The
hub requires two separate 5V power supplies: one for the hub itself and
one for the USB connectors. Add an always-on regulator sourcing 5V from
the DC-IN input, along with two GPIO-controlled fixed regulators to
manage the hub and connectors power supplies.

Note that the board also provides four USB 2.0 ports (two via type-A
connectors and two via the F_USB2 front USB header), but these are
handled by a different controller (USB#1 port in the K1 datasheet).

Signed-off-by: default avatarAurelien Jarno <aurelien@aurel32.net>
Reviewed-by: default avatarJavier Martinez Canillas <javierm@redhat.com>
Reviewed-by: default avatarYixun Lan <dlan@kernel.org>
Link: https://lore.kernel.org/r/20260326183745.1370642-6-aurelien@aurel32.net


Signed-off-by: default avatarYixun Lan <dlan@kernel.org>
parent 28298239

arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts

+62 −0
Original line number Diff line number Diff line
@@ -58,6 +58,41 @@ reg_vcc_4v: regulator-vcc-4v { 
		regulator-always-on;

		vin-supply = <&reg_dc_in>;

	};



	reg_vcc_5v: regulator-vcc-5v {

		compatible = "regulator-fixed";

		regulator-name = "vcc_5v";

		regulator-min-microvolt = <5000000>;

		regulator-max-microvolt = <5000000>;

		regulator-boot-on;

		regulator-always-on;

		vin-supply = <&reg_dc_in>;

	};



	regulator-usb3-vbus-5v {

		compatible = "regulator-fixed";

		regulator-name = "USB30_VBUS";

		regulator-min-microvolt = <5000000>;

		regulator-max-microvolt = <5000000>;

		regulator-always-on;

		vin-supply = <&reg_vcc_5v>;

		gpio = <&gpio K1_GPIO(97) GPIO_ACTIVE_HIGH>;

		enable-active-high;

	};



	usb3_hub_5v: regulator-usb3-hub-5v {

		compatible = "regulator-fixed";

		regulator-name = "USB30_HUB";

		regulator-min-microvolt = <5000000>;

		regulator-max-microvolt = <5000000>;

		vin-supply = <&reg_vcc_5v>;

		gpio = <&gpio K1_GPIO(123) GPIO_ACTIVE_HIGH>;

		enable-active-high;

	};

};



&combo_phy {

	status = "okay";

};



&eth0 {
@@ -302,3 +337,30 @@ &uart0 { 
	pinctrl-0 = <&uart0_2_cfg>;

	status = "okay";

};



&usbphy2 {

	status = "okay";

};



&usb_dwc3 {

	dr_mode = "host";

	#address-cells = <1>;

	#size-cells = <0>;

	status = "okay";



	hub_2_0: hub@1 {

		compatible = "usb2109,2817";

		reg = <0x1>;

		vdd-supply = <&usb3_hub_5v>;

		peer-hub = <&hub_3_0>;

		reset-gpios = <&gpio K1_GPIO(124) GPIO_ACTIVE_LOW>;

	};



	hub_3_0: hub@2 {

		compatible = "usb2109,817";

		reg = <0x2>;

		vdd-supply = <&usb3_hub_5v>;

		peer-hub = <&hub_2_0>;

		reset-gpios = <&gpio K1_GPIO(124) GPIO_ACTIVE_LOW>;

	};

};