xref: /linux/Documentation/devicetree/bindings/phy/socionext,uniphier-pcie-phy.yaml (revision f858cc9eed5b05cbe38d7ffd2787c21e3718eb7d) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/phy/socionext,uniphier-pcie-phy.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Socionext UniPhier PCIe PHY
8
9description: |
10  This describes the devicetree bindings for PHY interface built into
11  PCIe controller implemented on Socionext UniPhier SoCs.
12
13maintainers:
14  - Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
15
16properties:
17  compatible:
18    enum:
19      - socionext,uniphier-pro5-pcie-phy
20      - socionext,uniphier-ld20-pcie-phy
21      - socionext,uniphier-pxs3-pcie-phy
22      - socionext,uniphier-nx1-pcie-phy
23
24  reg:
25    maxItems: 1
26
27  "#phy-cells":
28    const: 0
29
30  clocks:
31    minItems: 1
32    maxItems: 2
33
34  clock-names:
35    minItems: 1
36    maxItems: 2
37
38  resets:
39    minItems: 1
40    maxItems: 2
41
42  reset-names:
43    minItems: 1
44    maxItems: 2
45
46  socionext,syscon:
47    $ref: /schemas/types.yaml#/definitions/phandle
48    description: A phandle to system control to set configurations for phy
49
50allOf:
51  - if:
52      properties:
53        compatible:
54          contains:
55            const: socionext,uniphier-pro5-pcie-phy
56    then:
57      properties:
58        clocks:
59          minItems: 2
60          maxItems: 2
61        clock-names:
62          items:
63            - const: gio
64            - const: link
65        resets:
66          minItems: 2
67          maxItems: 2
68        reset-names:
69          items:
70            - const: gio
71            - const: link
72    else:
73      properties:
74        clocks:
75          maxItems: 1
76        clock-names:
77          const: link
78        resets:
79          maxItems: 1
80        reset-names:
81          const: link
82
83required:
84  - compatible
85  - reg
86  - "#phy-cells"
87  - clocks
88  - clock-names
89  - resets
90  - reset-names
91
92additionalProperties: false
93
94examples:
95  - |
96    pcie_phy: phy@66038000 {
97        compatible = "socionext,uniphier-ld20-pcie-phy";
98        reg = <0x66038000 0x4000>;
99        #phy-cells = <0>;
100        clock-names = "link";
101        clocks = <&sys_clk 24>;
102        reset-names = "link";
103        resets = <&sys_rst 24>;
104        socionext,syscon = <&soc_glue>;
105    };
106