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
8 title: MediaTek Universal Flash Storage (UFS) M-PHY
9
10 maintainers:
11 - Stanley Chu <stanley.chu@mediatek.com>
12 - Chunfeng Yun <chunfeng.yun@mediatek.com>
13
14 description: |
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
20 properties:
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
48 required:
49 - compatible
50 - reg
51 - "#phy-cells"
52 - clocks
53 - clock-names
54
55 additionalProperties: false
56
57 examples:
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 ...
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