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|
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/usb/spacemit,k1-dwc3.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: SpacemiT K1 SuperSpeed DWC3 USB SoC Controller
maintainers:
- Ze Huang <huang.ze@linux.dev>
description: |
The SpacemiT K1 embeds a DWC3 USB IP Core which supports Host functions
for USB 3.0 and DRD for USB 2.0.
Key features:
- USB3.0 SuperSpeed and USB2.0 High/Full/Low-Speed support
- Supports low-power modes (USB2.0 suspend, USB3.0 U1/U2/U3)
- Internal DMA controller and flexible endpoint FIFO sizing
Communication Interface:
- Use of PIPE3 (125MHz) interface for USB3.0 PHY
- Use of UTMI+ (30/60MHz) interface for USB2.0 PHY
allOf:
- $ref: snps,dwc3-common.yaml#
properties:
compatible:
enum:
- spacemit,k1-dwc3
- spacemit,k3-dwc3
reg:
maxItems: 1
clocks:
maxItems: 1
clock-names:
const: usbdrd30
interrupts:
maxItems: 1
phys:
minItems: 1
items:
- description: phandle to USB2/HS PHY
- description: phandle to USB3/SS PHY
phy-names:
minItems: 1
items:
- const: usb2-phy
- const: usb3-phy
resets:
items:
- description: USB3.0 AHB reset
- description: USB3.0 VCC reset
- description: USB3.0 PHY reset
reset-names:
items:
- const: ahb
- const: vcc
- const: phy
reset-delay:
$ref: /schemas/types.yaml#/definitions/uint32
default: 2
description: delay after reset sequence [us]
vbus-supply:
description: A phandle to the regulator supplying the VBUS voltage.
required:
- compatible
- reg
- clocks
- clock-names
- interrupts
- phys
- phy-names
- resets
- reset-names
unevaluatedProperties: false
examples:
- |
usb@c0a00000 {
compatible = "spacemit,k1-dwc3";
reg = <0xc0a00000 0x10000>;
clocks = <&syscon_apmu 16>;
clock-names = "usbdrd30";
interrupts = <125>;
phys = <&usb2phy>, <&usb3phy>;
phy-names = "usb2-phy", "usb3-phy";
resets = <&syscon_apmu 8>,
<&syscon_apmu 9>,
<&syscon_apmu 10>;
reset-names = "ahb", "vcc", "phy";
reset-delay = <2>;
vbus-supply = <&usb3_vbus>;
#address-cells = <1>;
#size-cells = <0>;
hub_2_0: hub@1 {
compatible = "usb2109,2817";
reg = <1>;
vdd-supply = <&usb3_vhub>;
peer-hub = <&hub_3_0>;
reset-gpios = <&gpio 3 28 1>;
};
hub_3_0: hub@2 {
compatible = "usb2109,817";
reg = <2>;
vdd-supply = <&usb3_vhub>;
peer-hub = <&hub_2_0>;
reset-gpios = <&gpio 3 28 1>;
};
};
|
