On Wed, Dec 04, 2013 at 03:10:09PM -0500, WingMan Kwok wrote: > Added device tree support for TI's Keystone USB PHY driver and updated the > Documentation with device tree binding information. > > Cc: Santosh Shilimkar <santosh.shilimkar@xxxxxx> > Signed-off-by: WingMan Kwok <w-kwok2@xxxxxx> > --- > .../devicetree/bindings/usb/keystone-phy.txt | 19 +++++++++++++++++++ > arch/arm/boot/dts/keystone.dtsi | 7 +++++++ > 2 files changed, 26 insertions(+) > create mode 100644 Documentation/devicetree/bindings/usb/keystone-phy.txt > > diff --git a/Documentation/devicetree/bindings/usb/keystone-phy.txt b/Documentation/devicetree/bindings/usb/keystone-phy.txt > new file mode 100644 > index 0000000..300830d > --- /dev/null > +++ b/Documentation/devicetree/bindings/usb/keystone-phy.txt > @@ -0,0 +1,19 @@ > +TI Keystone USB PHY > + > +Required properties: > + - compatible: should be "ti,keystone-usbphy". > + - #address-cells, #size-cells : should be '1' if the device has sub-nodes > + with 'reg' property. > + - reg : Address and length of the usb phy control register set. > + > +The main purpose of this PHY driver is to enable the USB PHY reference clock > +gate on the Keystone SOC for both the USB2 and USB3 PHY. Otherwise it is just > +an NOP PHY driver. Hence this node is referenced as both the usb2 and usb3 > +phy node in the USB Glue layer driver node. > + > +usb_phy: usb_phy@2620738 { > + compatible = "ti,keystone-usbphy"; > + #address-cells = <1>; > + #size-cells = <1>; > + reg = <0x2620738 32>; > +}; > diff --git a/arch/arm/boot/dts/keystone.dtsi b/arch/arm/boot/dts/keystone.dtsi > index f6d6d9e..d497d9e 100644 > --- a/arch/arm/boot/dts/keystone.dtsi > +++ b/arch/arm/boot/dts/keystone.dtsi > @@ -181,5 +181,12 @@ > interrupts = <GIC_SPI 300 IRQ_TYPE_EDGE_RISING>; > clocks = <&clkspi>; > }; > + > + usb_phy: usb_phy@2620738 { > + compatible = "ti,keystone-usbphy"; > + #address-cells = <1>; > + #size-cells = <1>; > + reg = <0x2620738 32>; should this one have status = "disabled"; and let board dts enable the PHY ? -- balbi
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