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