On Sat, Jul 09, 2016 at 10:00:53AM +0530, Rajesh Bhagat wrote:
> Describes the qoriq usb 2.0 controller driver binding, currently used
> for LS1021A and LS1012A platform.
>
> Signed-off-by: Rajesh Bhagat <rajesh.bhagat@xxxxxxx>
> ---
> Changes in v2:
> - Adds DT binding documentation for qoriq usb 2.0 controller
> - Changed the compatible string to fsl,ci-qoriq-usb2
>
> .../devicetree/bindings/usb/ci-hdrc-qoriq.txt | 34 ++++++++++++++++++++++
> 1 file changed, 34 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/usb/ci-hdrc-qoriq.txt
>
> diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-qoriq.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-qoriq.txt
> new file mode 100644
> index 0000000..8ad7306
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/ci-hdrc-qoriq.txt
> @@ -0,0 +1,34 @@
> +* Freescale QorIQ SoC USB 2.0 Controllers
> +
> +Required properties:
> +- compatible: Should be "fsl,ci-qoriq-usb2"
> + Wherever applicable, the IP version of the USB controller should
> + also be mentioned (for eg. fsl,ci-qoriq-usb2-vX.Y).
> + where, X.Y is IP version of USB controller.
Please document known IP versions.
> +- reg: Should contain registers location and length
> +- interrupts: Should contain controller interrupt
> +- phy-names: from the *Generic PHY* bindings
> +- phys: from the *Generic PHY* bindings
> +- clocks: clock provider specifier
> +- clock-names: shall be "usb2-clock"
clock-names is kind of pointless for a single clock and '-clock' is
redundant.
> +Refer to clk/clock-bindings.txt for generic clock consumer properties
> +
> +Recommended properties:
> +- dr_mode: One of "host" or "peripheral".
> +- phy_type: the type of the phy connected to the core. Should be one
> + of "utmi", "utmi_wide", "ulpi", "serial" or "hsic". Without this
> + property the PORTSC register won't be touched
> +
> +Examples:
> +usb@8600000 {
> + compatible = "fsl,ci-qoriq-usb2",
> + "fsl,ci-qoriq-usb2-v2.5";
Order should be most specific to least specific.
> + reg = <0x0 0x8600000 0x0 0x1000>;
> + interrupts = <0 139 0x4>;
> + phy-names = "usb2-phy";
> + phys = <&usbphy0>;
> + clock-names = "usb2-clock";
> + clocks = <&clockgen 4 3>;
> + dr_mode = "host";
> + phy_type = "ulpi";
> +};
> --
> 2.6.2.198.g614a2ac
>
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