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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/phy/renesas,usb3-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Renesas R-Car generation 3 USB 3.0 PHY
maintainers:
- Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
properties:
compatible:
items:
- enum:
- renesas,r8a774a1-usb3-phy # RZ/G2M
- renesas,r8a774b1-usb3-phy # RZ/G2N
- renesas,r8a774e1-usb3-phy # RZ/G2H
- renesas,r8a7795-usb3-phy # R-Car H3
- renesas,r8a7796-usb3-phy # R-Car M3-W
- renesas,r8a77961-usb3-phy # R-Car M3-W+
- renesas,r8a77965-usb3-phy # R-Car M3-N
- const: renesas,rcar-gen3-usb3-phy
reg:
maxItems: 1
clocks:
minItems: 2
maxItems: 3
clock-names:
# If you want to use the ssc, the clock-frequency of usb_extal
# must not be 0.
minItems: 2
items:
- const: usb3-if # The funcional clock
- const: usb3s_clk # The usb3's external clock
- const: usb_extal # The usb2's external clock
'#phy-cells':
# see phy-bindings.txt in the same directory
const: 0
power-domains:
maxItems: 1
resets:
maxItems: 1
renesas,ssc-range:
description: |
Enable/disable spread spectrum clock (ssc). 0 or the property doesn't
exist means disabling the ssc. The actual value will be -<value> ppm.
$ref: /schemas/types.yaml#/definitions/uint32
enum: [ 0, 4003, 4492, 4980 ]
required:
- compatible
- reg
- clocks
- clock-names
- '#phy-cells'
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/r8a7795-cpg-mssr.h>
#include <dt-bindings/power/r8a7795-sysc.h>
usb-phy@e65ee000 {
compatible = "renesas,r8a7795-usb3-phy", "renesas,rcar-gen3-usb3-phy";
reg = <0xe65ee000 0x90>;
clocks = <&cpg CPG_MOD 328>, <&usb3s0_clk>, <&usb_extal>;
clock-names = "usb3-if", "usb3s_clk", "usb_extal";
#phy-cells = <0>;
};
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