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riscv: dts: spacemit: enable USB 3 ports on Milk-V Jupiter

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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: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Yixun Lan <dlan@kernel.org>
Link: https://lore.kernel.org/r/20260326183745.1370642-6-aurelien@aurel32.net
Signed-off-by: Yixun Lan <dlan@kernel.org>
This commit is contained in:
Aurelien Jarno 2026-03-26 19:35:33 +01:00 committed by Yixun Lan
parent 2829823956
commit dce01d8585
1 changed files with 62 additions and 0 deletions
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62
arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts
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@ -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>;
};
};