This patch aim at documenting USB related dt-bindings for the Cadence CDNSP-DRD controller. Signed-off-by: Pawel Laszczak <pawell@xxxxxxxxxxx> --- .../devicetree/bindings/usb/cdns-cdnsp.yaml | 104 ++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/cdns-cdnsp.yaml diff --git a/Documentation/devicetree/bindings/usb/cdns-cdnsp.yaml b/Documentation/devicetree/bindings/usb/cdns-cdnsp.yaml new file mode 100644 index 000000000000..83d353711e31 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/cdns-cdnsp.yaml @@ -0,0 +1,104 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/usb/cdns-cdnsp.yaml#"; +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; + +title: Device tree binding for Cadence CDNSP (Super Speed Plus) controller + +maintainers: + - Pawel Laszczak <pawell@xxxxxxxxxxx> + +description: + The Cadence CDNSP controller support Host, Device and DRD mode. + It also supports Full Speed, Hight Speed, Super Speed and + Super Speed Plus protocols. + +properties: + compatible: + items: + - enum: + - cdns,usbssp + + reg: + description: Physical base address and size of the + controller's register areas. Controller has + three different regions. + minItems: 2 + maxItems: 3 + items: + - description: HOST registers area. + - description: DEVICE registers area. + - description: OTG/DRD registers area. + + reg-names: + items: + - const: xhci + - const: dev + - const: otg + + interrupts: + minItems: 2 + maxItems: 3 + items: + - description: Interrupt used by XHCI driver. + - description: Interrupt used by device driver. + - description: Interrupt used by DRD part of driver. + + interrupt-names: + items: + - const: host + - const: peripheral + - const: otg + + maximum-speed: + enum: + - full-speed + - high-speed + - super-speed + - super-speed-plus + + dr_mode: + enum: + - host + - peripheral + - otg + + phys: + description: + Reference to the USB PHY. + Must contain an entry for each entry in phy-names. + See ../phy/phy-bindings.txt for details. + + phy-names: + items: + - const: cdnsp,usb2-phy + - const: cdnsp,usb3-phy + +required: + - compatible + - reg + - reg-names + - interrupts + - interrupt-names + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + + usb_otg: usb@f3000000 { + compatible = "cdns,usbssp"; + reg = <0x00 0x01c13000 0x00 0x0400>, + <0x00 0xf3010000 0x00 0x10000>, + <0x00 0xf3020000 0x00 0x10000>; + reg-names = "xhci", "dev", "otg"; + interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "host", "peripheral", "otg"; + phys = <&usbphy 0>; + phy-names = "cdnsp,usb2-phy", "cdnsp,usb3-phy"; + dr_mode = "peripheral"; + }; + +... -- 2.17.1
