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Diffstat (limited to 'Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml b/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml new file mode 100644 index 0000000000..95ff9791ba --- /dev/null +++ b/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml @@ -0,0 +1,113 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/ti,j721e-usb.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI wrapper module for the Cadence USBSS-DRD controller + +maintainers: + - Roger Quadros <rogerq@kernel.org> + +properties: + compatible: + oneOf: + - const: ti,j721e-usb + - const: ti,am64-usb + - items: + - const: ti,j721e-usb + - const: ti,am64-usb + + reg: + maxItems: 1 + + ranges: true + + power-domains: + description: + PM domain provider node and an args specifier containing + the USB device id value. See, + Documentation/devicetree/bindings/soc/ti/sci-pm-domain.yaml + maxItems: 1 + + clocks: + description: Clock phandles to usb2_refclk and lpm_clk + minItems: 2 + maxItems: 2 + + clock-names: + items: + - const: ref + - const: lpm + + ti,usb2-only: + description: + If present, it restricts the controller to USB2.0 mode of + operation. Must be present if USB3 PHY is not available + for USB. + type: boolean + + 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 + + '#address-cells': + const: 2 + + '#size-cells': + const: 2 + + dma-coherent: true + +patternProperties: + "^usb@": + type: object + +required: + - compatible + - reg + - power-domains + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + #include <dt-bindings/soc/ti,sci_pm_domain.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + + bus { + #address-cells = <2>; + #size-cells = <2>; + + cdns_usb@4104000 { + compatible = "ti,j721e-usb"; + reg = <0x00 0x4104000 0x00 0x100>; + power-domains = <&k3_pds 288 TI_SCI_PD_EXCLUSIVE>; + clocks = <&k3_clks 288 15>, <&k3_clks 288 3>; + clock-names = "ref", "lpm"; + assigned-clocks = <&k3_clks 288 15>; /* USB2_REFCLK */ + assigned-clock-parents = <&k3_clks 288 16>; /* HFOSC0 */ + #address-cells = <2>; + #size-cells = <2>; + + usb@6000000 { + compatible = "cdns,usb3"; + reg = <0x00 0x6000000 0x00 0x10000>, + <0x00 0x6010000 0x00 0x10000>, + <0x00 0x6020000 0x00 0x10000>; + reg-names = "otg", "xhci", "dev"; + interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>, /* irq.0 */ + <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>, /* irq.6 */ + <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>; /* otgirq.0 */ + interrupt-names = "host", + "peripheral", + "otg"; + maximum-speed = "super-speed"; + dr_mode = "otg"; + }; + }; + }; |