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d0f607e4b9
Add the "aspeed,ast2700-usb-vhub" compatible. The ast2700 vhub controller requires an reset, so make the "resets" property mandatory for this compatible to reflect the hardware requirement. Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://patch.msgid.link/20251128-upstream_vhub-v2-1-1fa66a5833c2@aspeedtech.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
157 lines
3.8 KiB
YAML
157 lines
3.8 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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# Copyright (c) 2020 Facebook Inc.
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/usb/aspeed,usb-vhub.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: ASPEED USB 2.0 Virtual Hub Controller
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maintainers:
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- Benjamin Herrenschmidt <benh@kernel.crashing.org>
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description: |+
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The ASPEED USB 2.0 Virtual Hub Controller implements 1 set of USB Hub
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register and several sets of Device and Endpoint registers to support
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the Virtual Hub's downstream USB devices.
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Supported number of devices and endpoints vary depending on hardware
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revisions. AST2400 and AST2500 Virtual Hub supports 5 downstream devices
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and 15 generic endpoints, while AST2600 and AST2700 Virtual Hub supports
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7 downstream devices and 21 generic endpoints.
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properties:
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compatible:
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enum:
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- aspeed,ast2400-usb-vhub
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- aspeed,ast2500-usb-vhub
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- aspeed,ast2600-usb-vhub
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- aspeed,ast2700-usb-vhub
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reg:
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maxItems: 1
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clocks:
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maxItems: 1
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resets:
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maxItems: 1
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interrupts:
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maxItems: 1
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aspeed,vhub-downstream-ports:
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description: Number of downstream ports supported by the Virtual Hub
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$ref: /schemas/types.yaml#/definitions/uint32
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default: 5
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minimum: 1
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maximum: 7
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aspeed,vhub-generic-endpoints:
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description: Number of generic endpoints supported by the Virtual Hub
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$ref: /schemas/types.yaml#/definitions/uint32
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default: 15
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minimum: 1
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maximum: 21
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vhub-vendor-id:
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description: vhub Vendor ID
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$ref: /schemas/types.yaml#/definitions/uint32
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maximum: 65535
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vhub-product-id:
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description: vhub Product ID
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$ref: /schemas/types.yaml#/definitions/uint32
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maximum: 65535
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vhub-device-revision:
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description: vhub Device Revision in binary-coded decimal
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$ref: /schemas/types.yaml#/definitions/uint32
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maximum: 65535
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vhub-strings:
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type: object
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additionalProperties: false
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properties:
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'#address-cells':
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const: 1
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'#size-cells':
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const: 0
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patternProperties:
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'^string@[0-9a-f]+$':
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type: object
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additionalProperties: false
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description: string descriptors of the specific language
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properties:
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reg:
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maxItems: 1
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description: 16-bit Language Identifier defined by USB-IF
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manufacturer:
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description: vhub manufacturer
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$ref: /schemas/types.yaml#/definitions/string
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product:
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description: vhub product name
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$ref: /schemas/types.yaml#/definitions/string
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serial-number:
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description: vhub device serial number
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$ref: /schemas/types.yaml#/definitions/string
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required:
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- compatible
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- reg
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- clocks
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- interrupts
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- aspeed,vhub-downstream-ports
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- aspeed,vhub-generic-endpoints
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if:
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properties:
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compatible:
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contains:
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const: aspeed,ast2700-usb-vhub
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then:
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required:
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- resets
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else:
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properties:
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resets: false
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/clock/aspeed-clock.h>
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vhub: usb-vhub@1e6a0000 {
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compatible = "aspeed,ast2500-usb-vhub";
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reg = <0x1e6a0000 0x300>;
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interrupts = <5>;
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clocks = <&syscon ASPEED_CLK_GATE_USBPORT1CLK>;
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aspeed,vhub-downstream-ports = <5>;
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aspeed,vhub-generic-endpoints = <15>;
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_usb2ad_default>;
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vhub-vendor-id = <0x1d6b>;
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vhub-product-id = <0x0107>;
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vhub-device-revision = <0x0100>;
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vhub-strings {
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#address-cells = <1>;
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#size-cells = <0>;
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string@409 {
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reg = <0x409>;
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manufacturer = "ASPEED";
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product = "USB Virtual Hub";
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serial-number = "0000";
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};
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};
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};
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