[PATCH v3 0/3] riscv: dts: spacemit: enable USB3 on OrangePi

[PATCH v3 0/3] riscv: dts: spacemit: enable USB3 on OrangePi

[Chukun Pan]

Changes in v3:
- Drop OrangePi RV2 part to avoid conflicts
- Link to v2: https://lore.kernel.org/lkml/20260402100007.110201-1-amadeus@jmu.edu.cn/

Changes in v2:
- Drop common board dtsi and PCIe regulator
- Enable USB3 on OrangePi R2S and RV2 boards
- Link to v1: https://lore.kernel.org/lkml/20260116100001.208334-2-amadeus@jmu.edu.cn/

The schematic of OrangePi RV2 is available at:
https://drive.google.com/drive/folders/1pcI_U0C3VJKTCg8A1zj08CwNbohnONSR

Chukun Pan (2):
  riscv: dts: spacemit: add fixed regulators for OrangePi R2S
  riscv: dts: spacemit: enable USB3 on OrangePi R2S

 .../boot/dts/spacemit/k1-orangepi-r2s.dts     | 43 +++++++++++++++++++
 1 file changed, 43 insertions(+)

-- 
2.34.1


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[PATCH v3 1/2] riscv: dts: spacemit: add fixed regulators for OrangePi R2S

[Chukun Pan]

Define the power input and the 4V power as fixed regulator supplies.

Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>
---
 .../boot/dts/spacemit/k1-orangepi-r2s.dts     | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
index de75f6aac740..409a6db269ae 100644
--- a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
@@ -21,6 +21,25 @@ aliases {
 	chosen {
 		stdout-path = "serial0";
 	};
+
+	vcc_5v0: regulator-vcc-5v0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_5v0";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	vcc4v0: regulator-vcc4v0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc4v0";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <4000000>;
+		regulator-max-microvolt = <4000000>;
+		vin-supply = <&vcc_5v0>;
+	};
 };
 
 &emmc {
-- 
2.34.1


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Re: [PATCH v3 1/2] riscv: dts: spacemit: add fixed regulators for OrangePi R2S

[Yixun Lan]

Hi Chukun,

On 18:00 Fri 10 Apr     , Chukun Pan wrote:
> Define the power input and the 4V power as fixed regulator supplies.
> 
> Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>
> ---
>  .../boot/dts/spacemit/k1-orangepi-r2s.dts     | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
> 
> diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
> index de75f6aac740..409a6db269ae 100644
> --- a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
> +++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
> @@ -21,6 +21,25 @@ aliases {
>  	chosen {
>  		stdout-path = "serial0";
>  	};
> +
> +	vcc_5v0: regulator-vcc-5v0 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc_5v0";
> +		regulator-always-on;
> +		regulator-boot-on;
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +	};
> +
> +	vcc4v0: regulator-vcc4v0 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc4v0";
> +		regulator-always-on;
> +		regulator-boot-on;
> +		regulator-min-microvolt = <4000000>;
> +		regulator-max-microvolt = <4000000>;
> +		vin-supply = <&vcc_5v0>;
> +	};
>  };
please check my comment below, I think this patch has similar issue

https://lore.kernel.org/all/20260511065338-GKA3624147@kernel.org/
-- 
Yixun Lan (dlan)

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[PATCH v3 2/2] riscv: dts: spacemit: enable USB3 on OrangePi R2S

[Chukun Pan]

Enable the DWC3 USB3.0 controller and its associated PHY on the
OrangePi R2S. The USB regulator provides VBUS for USB2 and USB3
ports, but the USB2 ports are handled by a separate controller.

Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>
---
 .../boot/dts/spacemit/k1-orangepi-r2s.dts     | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
index 409a6db269ae..bc68721e6263 100644
--- a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
@@ -40,6 +40,20 @@ vcc4v0: regulator-vcc4v0 {
 		regulator-max-microvolt = <4000000>;
 		vin-supply = <&vcc_5v0>;
 	};
+
+	vcc5v0_usb: regulator-vcc5v0-usb {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpios = <&gpio K1_GPIO(126) GPIO_ACTIVE_HIGH>;
+		regulator-name = "vcc5v0_usb";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc_5v0>;
+	};
+};
+
+&combo_phy {
+	status = "okay";
 };
 
 &emmc {
@@ -109,3 +123,13 @@ &uart0 {
 	pinctrl-0 = <&uart0_2_cfg>;
 	status = "okay";
 };
+
+&usbphy2 {
+	status = "okay";
+};
+
+&usb_dwc3 {
+	dr_mode = "host";
+	vbus-supply = <&vcc5v0_usb>;
+	status = "okay";
+};
-- 
2.34.1


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Re: [PATCH v3 0/3] riscv: dts: spacemit: enable USB3 on OrangePi

[Chukun Pan]

Hi,

>   riscv: dts: spacemit: add fixed regulators for OrangePi R2S
>   riscv: dts: spacemit: enable USB3 on OrangePi R2S

Friendly ping

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Re: [PATCH v3 0/3] riscv: dts: spacemit: enable USB3 on OrangePi

[Chukun Pan]

Hi,

>   riscv: dts: spacemit: add fixed regulators for OrangePi R2S
>   riscv: dts: spacemit: enable USB3 on OrangePi R2S

Ping... This patch seems to have been forgotten.

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Re: [PATCH v3 0/3] riscv: dts: spacemit: enable USB3 on OrangePi

[Yixun Lan]

Hi Chukun,

On 14:01 Mon 11 May     , Chukun Pan wrote:
> Hi,
> 
> >   riscv: dts: spacemit: add fixed regulators for OrangePi R2S
> >   riscv: dts: spacemit: enable USB3 on OrangePi R2S
> 
> Ping... This patch seems to have been forgotten.

Thanks for the ping..

Don't hesitate to ask if you think I've forgotten, or the patch
has been ignored for too long..

Yixun Lan (dlan)

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