Add bindings for the TI's AM62 wrapper module for the Synopsys USBSS-DRD controller. Signed-off-by: Aswath Govindraju <a-govindraju@xxxxxx> --- .../devicetree/bindings/usb/ti,am62-usb.yaml | 98 +++++++++++++++++++ 1 file changed, 98 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/ti,am62-usb.yaml diff --git a/Documentation/devicetree/bindings/usb/ti,am62-usb.yaml b/Documentation/devicetree/bindings/usb/ti,am62-usb.yaml new file mode 100644 index 000000000000..4bb139d1926d --- /dev/null +++ b/Documentation/devicetree/bindings/usb/ti,am62-usb.yaml @@ -0,0 +1,98 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/ti,am62-usb.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Bindings for the TI's AM62 wrapper module for the Synopsys USBSS-DRD controller + +maintainers: + - Aswath Govindraju <a-govindraju@xxxxxx> + +properties: + compatible: + const: ti,am62-usb + + reg: + maxItems: 1 + + ranges: true + + power-domains: + description: + PM domain provider node and an args specifier containing + the USB ISO device id value. See, + Documentation/devicetree/bindings/soc/ti/sci-pm-domain.yaml + maxItems: 1 + + clocks: + description: Clock phandles to usb2_refclk + maxItems: 1 + + clock-names: + items: + - const: ref + + id-gpio: + description: + GPIO to be used as ID pin + maxItems: 1 + + interrupts: + description: + interrupt line to be used for detecting changes in VBUS + + ti,vbus-divider: + description: + Should be present if USB VBUS line is connected to the + VBUS pin of the SoC via a 1/3 voltage divider. + type: boolean + + ti,syscon-phy-pll-refclk: + $ref: /schemas/types.yaml#/definitions/phandle-array + items: + - items: + - description: Phandle to the SYSCON entry + - description: USB phy control register offset within SYSCON + description: Specifier for configuring frequency of ref clock input. + + '#address-cells': + const: 2 + + '#size-cells': + const: 2 + +required: + - compatible + - reg + - power-domains + - clocks + - clock-names + - interrupts + - ti,syscon-phy-pll-refclk + +additionalProperties: false + +examples: + - | + #include <dt-bindings/soc/ti,sci_pm_domain.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/gpio/gpio.h> + + bus { + #address-cells = <2>; + #size-cells = <2>; + + dwc3-usb@f910000 { + compatible = "ti,am62-usb"; + reg = <0x00 0x0f910000 0x00 0x800>; + interrupts = <GIC_SPI 234 IRQ_TYPE_LEVEL_HIGH>; /* MISC IRQ */ + clocks = <&k3_clks 162 3>; + clock-names = "ref"; + ti,syscon-phy-pll-refclk = <&wkup_conf 0x4018>; + power-domains = <&k3_pds 179 TI_SCI_PD_EXCLUSIVE>; + id-gpio = <&main_gpio1 51 GPIO_ACTIVE_LOW>; + #address-cells = <2>; + #size-cells = <2>; + }; + }; -- 2.17.1
