diff mbox series

[6/7] arm64: dts: allwinner: h616: OrangePi Zero 2: Add USB nodes

Message ID 20220911235945.6635-7-andre.przywara@arm.com (mailing list archive)
State Superseded
Headers show
Series arm64: sunxi: h616: Add USB support | expand

Commit Message

Andre Przywara Sept. 11, 2022, 11:59 p.m. UTC
The OrangePi Zero 2 has one USB-A host port, VBUS is provided by
a GPIO controlled regulator.
The USB-C port is meant to power the board, but is also connected to
the USB 0 port, which we configure as an MUSB peripheral.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
 .../allwinner/sun50i-h616-orangepi-zero2.dts  | 42 +++++++++++++++++++
 1 file changed, 42 insertions(+)

Comments

Krzysztof Kozlowski Sept. 12, 2022, 11 a.m. UTC | #1
On 12/09/2022 01:59, Andre Przywara wrote:
> The OrangePi Zero 2 has one USB-A host port, VBUS is provided by
> a GPIO controlled regulator.
> The USB-C port is meant to power the board, but is also connected to
> the USB 0 port, which we configure as an MUSB peripheral.
> 
> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
> ---
>  .../allwinner/sun50i-h616-orangepi-zero2.dts  | 42 +++++++++++++++++++
>  1 file changed, 42 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts b/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts
> index 02893f3ac99d..3197dc43397b 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts
> @@ -49,8 +49,25 @@ reg_vcc5v: vcc5v {
>  		regulator-max-microvolt = <5000000>;
>  		regulator-always-on;
>  	};
> +
> +	reg_usb1_vbus: usb1-vbus {

Generic node names, so at least generic prefix/suffix (regulator-usb1-vbus)

> +		compatible = "regulator-fixed";
> +		regulator-name = "usb1-vbus";
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		vin-supply = <&reg_vcc5v>;
> +		enable-active-high;
> +		gpio = <&pio 2 16 GPIO_ACTIVE_HIGH>; /* PC16 */
> +		status = "okay";

No need for status.


Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts b/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts
index 02893f3ac99d..3197dc43397b 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero2.dts
@@ -49,8 +49,25 @@  reg_vcc5v: vcc5v {
 		regulator-max-microvolt = <5000000>;
 		regulator-always-on;
 	};
+
+	reg_usb1_vbus: usb1-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "usb1-vbus";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&reg_vcc5v>;
+		enable-active-high;
+		gpio = <&pio 2 16 GPIO_ACTIVE_HIGH>; /* PC16 */
+		status = "okay";
+	};
 };
 
+&ehci1 {
+	status = "okay";
+};
+
+/* USB 2 & 3 are on headers only. */
+
 &emac0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&ext_rgmii_pins>;
@@ -76,6 +93,10 @@  &mmc0 {
 	status = "okay";
 };
 
+&ohci1 {
+	status = "okay";
+};
+
 &r_rsb {
 	status = "okay";
 
@@ -211,3 +232,24 @@  &uart0 {
 	pinctrl-0 = <&uart0_ph_pins>;
 	status = "okay";
 };
+
+&usbotg {
+	/*
+	 * PHY0 pins are connected to a USB-C socket, but a role switch
+	 * is not implemented: both CC pins are pulled to GND.
+	 * The VBUS pins power the device, so a fixed peripheral mode
+	 * is the best choice.
+	 * The board can be powered via GPIOs, in this case port0 *can*
+	 * act as a host (with a cable/adapter ignoring CC), as VBUS is
+	 * then provided by the GPIOs. Any user of this setup would
+	 * need to adjust the DT accordingly: dr_mode set to "host",
+	 * enabling OHCI0 and EHCI0.
+	 */
+	dr_mode = "peripheral";
+	status = "okay";
+};
+
+&usbphy {
+	usb1_vbus-supply = <&reg_usb1_vbus>;
+	status = "okay";
+};