xref: /linux/Documentation/devicetree/bindings/pci/socionext,uniphier-pcie-ep.yaml (revision 55d0969c451159cff86949b38c39171cab962069) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pci/socionext,uniphier-pcie-ep.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Socionext UniPhier PCIe endpoint controller
8
9description: |
10  UniPhier PCIe endpoint controller is based on the Synopsys DesignWare
11  PCI core. It shares common features with the PCIe DesignWare core and
12  inherits common properties defined in
13  Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml.
14
15maintainers:
16  - Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
17
18properties:
19  compatible:
20    enum:
21      - socionext,uniphier-pro5-pcie-ep
22      - socionext,uniphier-nx1-pcie-ep
23
24  reg:
25    minItems: 4
26    maxItems: 5
27
28  reg-names:
29    minItems: 4
30    items:
31      - const: dbi
32      - const: dbi2
33      - const: link
34      - const: addr_space
35      - const: atu
36
37  clocks:
38    minItems: 1
39    maxItems: 2
40
41  clock-names:
42    minItems: 1
43    maxItems: 2
44
45  resets:
46    minItems: 1
47    maxItems: 2
48
49  reset-names:
50    minItems: 1
51    maxItems: 2
52
53  num-ib-windows:
54    const: 16
55
56  num-ob-windows:
57    const: 16
58
59  num-lanes: true
60
61  phys:
62    maxItems: 1
63
64  phy-names:
65    const: pcie-phy
66
67allOf:
68  - $ref: /schemas/pci/snps,dw-pcie-ep.yaml#
69  - if:
70      properties:
71        compatible:
72          contains:
73            const: socionext,uniphier-pro5-pcie-ep
74    then:
75      properties:
76        reg:
77          maxItems: 4
78        reg-names:
79          maxItems: 4
80        clocks:
81          minItems: 2
82        clock-names:
83          items:
84            - const: gio
85            - const: link
86        resets:
87          minItems: 2
88        reset-names:
89          items:
90            - const: gio
91            - const: link
92    else:
93      properties:
94        reg:
95          minItems: 5
96        reg-names:
97          minItems: 5
98        clocks:
99          maxItems: 1
100        clock-names:
101          const: link
102        resets:
103          maxItems: 1
104        reset-names:
105          const: link
106
107required:
108  - compatible
109  - reg
110  - reg-names
111  - clocks
112  - clock-names
113  - resets
114  - reset-names
115
116unevaluatedProperties: false
117
118examples:
119  - |
120    pcie_ep: pcie-ep@66000000 {
121        compatible = "socionext,uniphier-pro5-pcie-ep";
122        reg-names = "dbi", "dbi2", "link", "addr_space";
123        reg = <0x66000000 0x1000>, <0x66001000 0x1000>,
124              <0x66010000 0x10000>, <0x67000000 0x400000>;
125        clock-names = "gio", "link";
126        clocks = <&sys_clk 12>, <&sys_clk 24>;
127        reset-names = "gio", "link";
128        resets = <&sys_rst 12>, <&sys_rst 24>;
129        num-ib-windows = <16>;
130        num-ob-windows = <16>;
131        num-lanes = <4>;
132        phy-names = "pcie-phy";
133        phys = <&pcie_phy>;
134    };
135