| Message ID | 20170319163118.56301-3-icenowy@aosc.xyz (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Mon, Mar 20, 2017 at 12:31 AM, Icenowy Zheng <icenowy@aosc.xyz> wrote: > 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 <icenowy@aosc.xyz> Acked-by: Chen-Yu Tsai <wens@csie.org>
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 */ };
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 <icenowy@aosc.xyz> --- Changes in v3: - Add "h3:" in commit message. arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-)