xref: /linux/Documentation/devicetree/bindings/pci/eswin,pcie.yaml (revision 40286d6379aacfcc053253ef78dc78b09addffda) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pci/eswin,pcie.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: ESWIN PCIe Root Complex
8
9maintainers:
10  - Yu Ning <ningyu@eswincomputing.com>
11  - Senchuan Zhang <zhangsenchuan@eswincomputing.com>
12  - Yanghui Ou <ouyanghui@eswincomputing.com>
13
14description:
15  ESWIN SoCs PCIe Root Complex is based on the Synopsys DesignWare PCIe IP.
16
17properties:
18  compatible:
19    const: eswin,eic7700-pcie
20
21  reg:
22    maxItems: 3
23
24  reg-names:
25    items:
26      - const: dbi
27      - const: config
28      - const: elbi
29
30  ranges:
31    maxItems: 3
32
33  '#interrupt-cells':
34    const: 1
35
36  interrupt-names:
37    items:
38      - const: msi
39      - const: inta
40      - const: intb
41      - const: intc
42      - const: intd
43
44  interrupt-map:
45    maxItems: 4
46
47  interrupt-map-mask:
48    items:
49      - const: 0
50      - const: 0
51      - const: 0
52      - const: 7
53
54  clocks:
55    maxItems: 4
56
57  clock-names:
58    items:
59      - const: mstr
60      - const: dbi
61      - const: phy_reg
62      - const: aux
63
64  resets:
65    maxItems: 2
66
67  reset-names:
68    items:
69      - const: dbi
70      - const: pwr
71
72patternProperties:
73  "^pcie@":
74    type: object
75    $ref: /schemas/pci/pci-pci-bridge.yaml#
76
77    properties:
78      reg:
79        maxItems: 1
80
81      num-lanes:
82        maximum: 4
83
84      resets:
85        maxItems: 1
86
87      reset-names:
88        items:
89          - const: perst
90
91    required:
92      - reg
93      - ranges
94      - num-lanes
95      - resets
96      - reset-names
97
98    unevaluatedProperties: false
99
100required:
101  - compatible
102  - reg
103  - ranges
104  - interrupts
105  - interrupt-names
106  - interrupt-map-mask
107  - interrupt-map
108  - '#interrupt-cells'
109  - clocks
110  - clock-names
111  - resets
112  - reset-names
113
114allOf:
115  - $ref: /schemas/pci/snps,dw-pcie.yaml#
116
117unevaluatedProperties: false
118
119examples:
120  - |
121    soc {
122        #address-cells = <2>;
123        #size-cells = <2>;
124
125        pcie@54000000 {
126            compatible = "eswin,eic7700-pcie";
127            reg = <0x0 0x54000000 0x0 0x4000000>,
128                  <0x0 0x40000000 0x0 0x800000>,
129                  <0x0 0x50000000 0x0 0x100000>;
130            reg-names = "dbi", "config", "elbi";
131            #address-cells = <3>;
132            #size-cells = <2>;
133            #interrupt-cells = <1>;
134            ranges = <0x01000000 0x0 0x40800000 0x0 0x40800000 0x0 0x800000>,
135                     <0x02000000 0x0 0x41000000 0x0 0x41000000 0x0 0xf000000>,
136                     <0x43000000 0x80 0x00000000 0x80 0x00000000 0x2 0x00000000>;
137            bus-range = <0x00 0xff>;
138            clocks = <&clock 144>,
139                     <&clock 145>,
140                     <&clock 146>,
141                     <&clock 147>;
142            clock-names = "mstr", "dbi", "phy_reg", "aux";
143            resets = <&reset 97>,
144                     <&reset 98>;
145            reset-names = "dbi", "pwr";
146            interrupts = <220>, <179>, <180>, <181>, <182>, <183>, <184>, <185>, <186>;
147            interrupt-names = "msi", "inta", "intb", "intc", "intd";
148            interrupt-parent = <&plic>;
149            interrupt-map-mask = <0x0 0x0 0x0 0x7>;
150            interrupt-map = <0x0 0x0 0x0 0x1 &plic 179>,
151                            <0x0 0x0 0x0 0x2 &plic 180>,
152                            <0x0 0x0 0x0 0x3 &plic 181>,
153                            <0x0 0x0 0x0 0x4 &plic 182>;
154            device_type = "pci";
155            pcie@0 {
156                reg = <0x0 0x0 0x0 0x0 0x0>;
157                #address-cells = <3>;
158                #size-cells = <2>;
159                ranges;
160                device_type = "pci";
161                num-lanes = <4>;
162                resets = <&reset 99>;
163                reset-names = "perst";
164            };
165        };
166    };
167