Orange Pi Zero board features a USB OTG port, which has a ID pin, and can be used to power up the board. However, even if the board is powered via +5V pin in GPIO/expansion headers, the VBUS in the OTG port cannot be powered up, thus it's impossible to use it in host mode with simple OTG cables.
Add support for it in peripheral mode. If someone really want to use it in host mode, the mode of PHY can be switch via sysfs, then use a powered USB OTG cable or powered USB HUB to power up external USB devices. Signed-off-by: Icenowy Zheng <[email protected]> Acked-by: Chen-Yu Tsai <[email protected]> --- Changes in v5: - Add Chen-Yu's ACK. Changes in v3: - Add "h2+:" in commit message. arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts index 96c32293598a..9e8b082c134f 100644 --- a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts +++ b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts @@ -95,6 +95,10 @@ }; }; +&ehci0 { + status = "okay"; +}; + &ehci1 { status = "okay"; }; @@ -131,6 +135,10 @@ bias-pull-up; }; +&ohci0 { + status = "okay"; +}; + &ohci1 { status = "okay"; }; @@ -153,7 +161,17 @@ status = "disabled"; }; +&usb_otg { + dr_mode = "peripheral"; + status = "okay"; +}; + &usbphy { - /* USB VBUS is always on */ + /* + * USB Type-A port VBUS is always on. However, MicroUSB VBUS can only + * power up the board; when it's used as OTG port, this VBUS is + * always off even if the board is powered via GPIO pins. + */ status = "okay"; + usb0_id_det-gpios = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */ }; -- 2.12.0 -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
