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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
# Copyright (c) 2020 MediaTek
%YAML 1.2
---
$id: http://devicetree.org/schemas/phy/mediatek,ufs-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek Universal Flash Storage (UFS) M-PHY
maintainers:
- Stanley Chu <stanley.chu@mediatek.com>
- Chunfeng Yun <chunfeng.yun@mediatek.com>
description: |
UFS M-PHY nodes are defined to describe on-chip UFS M-PHY hardware macro.
Each UFS M-PHY node should have its own node.
To bind UFS M-PHY with UFS host controller, the controller node should
contain a phandle reference to UFS M-PHY node.
properties:
$nodename:
pattern: "^ufs-phy@[0-9a-f]+$"
compatible:
oneOf:
- items:
- enum:
- mediatek,mt8195-ufsphy
- const: mediatek,mt8183-ufsphy
- const: mediatek,mt8183-ufsphy
reg:
maxItems: 1
clocks:
items:
- description: Unipro core control clock.
- description: M-PHY core control clock.
clock-names:
items:
- const: unipro
- const: mp
"#phy-cells":
const: 0
required:
- compatible
- reg
- "#phy-cells"
- clocks
- clock-names
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/mt8183-clk.h>
ufsphy: ufs-phy@11fa0000 {
compatible = "mediatek,mt8183-ufsphy";
reg = <0x11fa0000 0xc000>;
clocks = <&infracfg CLK_INFRA_UNIPRO_SCK>,
<&infracfg CLK_INFRA_UFS_MP_SAP_BCLK>;
clock-names = "unipro", "mp";
#phy-cells = <0>;
};
...
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