| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/usb/ti,usb8020b.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: TI USB8020B USB 3.0 hub controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Macpaul Lin <macpaul.lin@mediatek.com> |
| 11 | |
| 12 | allOf: |
| 13 | - $ref: usb-device.yaml# |
| 14 | |
| 15 | properties: |
| 16 | compatible: |
| 17 | enum: |
| 18 | - usb451,8025 |
| 19 | - usb451,8027 |
| 20 | |
| 21 | reg: true |
| 22 | |
| 23 | reset-gpios: |
| 24 | items: |
| 25 | - description: GPIO specifier for GRST# pin. |
| 26 | |
| 27 | vdd-supply: |
| 28 | description: |
| 29 | VDD power supply to the hub |
| 30 | |
| 31 | peer-hub: |
| 32 | $ref: /schemas/types.yaml#/definitions/phandle |
| 33 | description: |
| 34 | phandle to the peer hub on the controller. |
| 35 | |
| 36 | required: |
| 37 | - compatible |
| 38 | - reg |
| 39 | - peer-hub |
| 40 | |
| 41 | additionalProperties: false |
| 42 | |
| 43 | examples: |
| 44 | - | |
| 45 | #include <dt-bindings/gpio/gpio.h> |
| 46 | |
| 47 | usb { |
| 48 | dr_mode = "host"; |
| 49 | #address-cells = <1>; |
| 50 | #size-cells = <0>; |
| 51 | |
| 52 | /* 2.0 hub on port 1 */ |
| 53 | hub_2_0: hub@1 { |
| 54 | compatible = "usb451,8027"; |
| 55 | reg = <1>; |
| 56 | peer-hub = <&hub_3_0>; |
| 57 | reset-gpios = <&pio 7 GPIO_ACTIVE_HIGH>; |
| 58 | vdd-supply = <&usb_hub_fixed_3v3>; |
| 59 | }; |
| 60 | |
| 61 | /* 3.0 hub on port 2 */ |
| 62 | hub_3_0: hub@2 { |
| 63 | compatible = "usb451,8025"; |
| 64 | reg = <2>; |
| 65 | peer-hub = <&hub_2_0>; |
| 66 | reset-gpios = <&pio 7 GPIO_ACTIVE_HIGH>; |
| 67 | vdd-supply = <&usb_hub_fixed_3v3>; |
| 68 | }; |
| 69 | }; |