Hi, On Tue, Feb 09, 2016 at 10:29:16AM +0100, [email protected] wrote: > From: Marcus Cooper <[email protected]> > > Enable the otg/drc usb controller on the Itead Ibox device. > > Note this board has the otg-vbus connected directly to the 5v-dcc of > the board, so there is no vbus0 regulator, nor vbus0-det. > > Signed-off-by: Marcus Cooper <[email protected]> > --- > Changes since v1: > - Added comment concerning vbus0 regulator and detection to commit message > > --- > arch/arm/boot/dts/sun7i-a20-itead-ibox.dts | 14 ++++++++++++++ > arch/arm/boot/dts/sunxi-itead-core-common.dtsi | 9 +++++++++ > 2 files changed, 23 insertions(+) > > diff --git a/arch/arm/boot/dts/sun7i-a20-itead-ibox.dts > b/arch/arm/boot/dts/sun7i-a20-itead-ibox.dts > index 661c21d..a512581 100644 > --- a/arch/arm/boot/dts/sun7i-a20-itead-ibox.dts > +++ b/arch/arm/boot/dts/sun7i-a20-itead-ibox.dts > @@ -118,8 +118,22 @@ > allwinner,drive = <SUN4I_PINCTRL_20_MA>; > allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; > }; > + > + usb0_id_detect_pin: usb0_id_detect_pin@0 { > + allwinner,pins = "PH4"; > + allwinner,function = "gpio_in"; > + allwinner,drive = <SUN4I_PINCTRL_10_MA>; > + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; > + }; > }; > > ®_ahci_5v { > status = "okay"; > }; > + > +&usbphy { > + pinctrl-names = "default"; > + pinctrl-0 = <&usb0_id_detect_pin>; > + usb0_id_det-gpio = <&pio 7 4 GPIO_ACTIVE_HIGH>; /* PH4 */ > + status = "okay"; > +}; > diff --git a/arch/arm/boot/dts/sunxi-itead-core-common.dtsi > b/arch/arm/boot/dts/sunxi-itead-core-common.dtsi > index 2565d51..d22eea3 100644 > --- a/arch/arm/boot/dts/sunxi-itead-core-common.dtsi > +++ b/arch/arm/boot/dts/sunxi-itead-core-common.dtsi > @@ -88,6 +88,10 @@ > status = "okay"; > }; > > +&otg_sram { > + status = "okay"; > +}; > + > #include "axp209.dtsi" > > ®_dcdc2 { > @@ -129,6 +133,11 @@ > status = "okay"; > }; > > +&usb_otg { > + dr_mode = "otg";
If VBUS is tied to 5V, without anyway to disable it, then it cannot do OTG. The mode it can do is host. Maxime -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com -- 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.
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