Hi,
On Tue, Mar 7, 2017 at 6:34 AM, Icenowy Zheng <icenowy@xxxxxxxx> 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@xxxxxxxx>
> ---
> New patch in v3.
>
> arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
>
> 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 b7ca916d871d..63f819394b98 100644
> --- a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts
> +++ b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts
> @@ -96,6 +96,10 @@
> };
> };
>
> +&ehci0 {
> + status = "okay";
> +};
> +
> &ehci1 {
> status = "okay";
> };
> @@ -132,6 +136,10 @@
> bias-pull-up;
> };
>
> +&ohci0 {
> + status = "okay";
> +};
> +
> &ohci1 {
> status = "okay";
> };
> @@ -154,7 +162,13 @@
> status = "disabled";
> };
>
> +&usb_otg {
> + dr_mode = "peripheral";
> + status = "okay";
> +};
> +
> &usbphy {
> /* USB VBUS is always on */
This comment does not match your commit message, which says it's always off.
ChenYu
> status = "okay";
> + usb0_id_det-gpios = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
> };
> --
> 2.11.1
>
> --
> 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 linux-sunxi+unsubscribe@xxxxxxxxxxxxxxxx.
> For more options, visit https://groups.google.com/d/optout.
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
