xref: /freebsd/sys/contrib/device-tree/Bindings/phy/mediatek,ufs-phy.yaml (revision bdd1243df58e60e85101c09001d9812a789b6bc4) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2# Copyright (c) 2020 MediaTek
3%YAML 1.2
4---
5$id: http://devicetree.org/schemas/phy/mediatek,ufs-phy.yaml#
6$schema: http://devicetree.org/meta-schemas/core.yaml#
7
8title: MediaTek Universal Flash Storage (UFS) M-PHY binding
9
10maintainers:
11  - Stanley Chu <stanley.chu@mediatek.com>
12  - Chunfeng Yun <chunfeng.yun@mediatek.com>
13
14description: |
15  UFS M-PHY nodes are defined to describe on-chip UFS M-PHY hardware macro.
16  Each UFS M-PHY node should have its own node.
17  To bind UFS M-PHY with UFS host controller, the controller node should
18  contain a phandle reference to UFS M-PHY node.
19
20properties:
21  $nodename:
22    pattern: "^ufs-phy@[0-9a-f]+$"
23
24  compatible:
25    oneOf:
26      - items:
27          - enum:
28              - mediatek,mt8195-ufsphy
29          - const: mediatek,mt8183-ufsphy
30      - const: mediatek,mt8183-ufsphy
31
32  reg:
33    maxItems: 1
34
35  clocks:
36    items:
37      - description: Unipro core control clock.
38      - description: M-PHY core control clock.
39
40  clock-names:
41    items:
42      - const: unipro
43      - const: mp
44
45  "#phy-cells":
46    const: 0
47
48required:
49  - compatible
50  - reg
51  - "#phy-cells"
52  - clocks
53  - clock-names
54
55additionalProperties: false
56
57examples:
58  - |
59    #include <dt-bindings/clock/mt8183-clk.h>
60    ufsphy: ufs-phy@11fa0000 {
61        compatible = "mediatek,mt8183-ufsphy";
62        reg = <0x11fa0000 0xc000>;
63        clocks = <&infracfg CLK_INFRA_UNIPRO_SCK>,
64                 <&infracfg CLK_INFRA_UFS_MP_SAP_BCLK>;
65        clock-names = "unipro", "mp";
66        #phy-cells = <0>;
67    };
68
69...
70