121 lines
3.0 KiB
YAML
121 lines
3.0 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/usb/ti,omap4-musb.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Texas Instruments OMAP MUSB USB OTG Controller
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maintainers:
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- Felipe Balbi <balbi@ti.com>
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description:
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Texas Instruments glue layer for the Mentor Graphics MUSB OTG controller.
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Handles SoC-specific integration including PHY interface bridging(ULPI/
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UTMI), interrupt aggregation, DMA engine coordination (internal/
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external), VBUS/session control via control module mailbox, and
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clock/reset management. Provides fixed hardware configuration parameters
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to the generic MUSB core driver.
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properties:
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compatible:
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enum:
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- ti,omap3-musb
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- ti,omap4-musb
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reg:
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maxItems: 1
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interrupts:
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minItems: 1
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maxItems: 2
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interrupt-names:
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minItems: 1
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items:
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- const: mc
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- const: dma
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multipoint:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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Indicates the MUSB controller supports multipoint. This is a MUSB
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configuration-specific setting.
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const: 1
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num-eps:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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Specifies the number of endpoints. This is a MUSB configuration
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specific setting.
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const: 16
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ram-bits:
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description: Specifies the RAM address size.
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const: 12
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interface-type:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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Describes the type of interface between the controller and the PHY.
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0 for ULPI, 1 for UTMI.
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enum: [0, 1]
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mode:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: 1 for HOST, 2 for PERIPHERAL, 3 for OTG.
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enum: [1, 2, 3]
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power:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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Indicates the maximum current the controller can supply when
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operating in host mode. A value of 50 corresponds to 100 mA, and a
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value of 150 corresponds to 300 mA.
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enum: [50, 150]
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phys:
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maxItems: 1
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phy-names:
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const: usb2-phy
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usb-phy:
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$ref: /schemas/types.yaml#/definitions/phandle-array
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description: Phandle for the PHY device.
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deprecated: true
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ctrl-module:
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$ref: /schemas/types.yaml#/definitions/phandle
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description:
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Phandle of the control module this glue uses to write to mailbox.
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required:
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- reg
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- compatible
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- interrupts
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- interrupt-names
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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usb@4a0ab000 {
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compatible = "ti,omap4-musb";
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reg = <0x4a0ab000 0x1000>;
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interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>;
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interrupt-names = "mc", "dma";
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multipoint = <1>;
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num-eps = <16>;
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ram-bits = <12>;
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ctrl-module = <&omap_control_usb>;
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phys = <&usb2_phy>;
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phy-names = "usb2-phy";
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interface-type = <1>;
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mode = <3>;
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power = <50>;
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};
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...
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