xref: /linux/Documentation/devicetree/bindings/pci/apm,xgene-pcie.yaml (revision 0bd0a41a5120f78685a132834865b0a631b9026a) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pci/apm,xgene-pcie.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: AppliedMicro X-Gene PCIe interface
8
9maintainers:
10  - Toan Le <toan@os.amperecomputing.com>
11
12allOf:
13  - $ref: /schemas/pci/pci-host-bridge.yaml#
14
15properties:
16  compatible:
17    oneOf:
18      - items:
19          - const: apm,xgene-storm-pcie
20          - const: apm,xgene-pcie
21      - items:
22          - const: apm,xgene-pcie
23
24  reg:
25    items:
26      - description: Controller configuration registers
27      - description: PCI configuration space registers
28
29  reg-names:
30    items:
31      - const: csr
32      - const: cfg
33
34  clocks:
35    maxItems: 1
36
37  clock-names:
38    items:
39      - const: pcie
40
41  dma-coherent: true
42
43  msi-parent:
44    maxItems: 1
45
46required:
47  - compatible
48  - reg
49  - reg-names
50  - '#interrupt-cells'
51  - interrupt-map-mask
52  - interrupt-map
53  - clocks
54
55unevaluatedProperties: false
56
57examples:
58  - |
59    bus {
60        #address-cells = <2>;
61        #size-cells = <2>;
62
63        pcie@1f2b0000 {
64            compatible = "apm,xgene-storm-pcie", "apm,xgene-pcie";
65            device_type = "pci";
66            #interrupt-cells = <1>;
67            #size-cells = <2>;
68            #address-cells = <3>;
69            reg = <0x00 0x1f2b0000 0x0 0x00010000>, /* Controller registers */
70                  <0xe0 0xd0000000 0x0 0x00040000>; /* PCI config space */
71            reg-names = "csr", "cfg";
72            ranges = <0x01000000 0x00 0x00000000 0xe0 0x10000000 0x00 0x00010000>, /* io */
73                    <0x02000000 0x00 0x80000000 0xe1 0x80000000 0x00 0x80000000>; /* mem */
74            dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000>,
75                        <0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
76            interrupt-map-mask = <0x0 0x0 0x0 0x7>;
77            interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0xc2 0x1>,
78                            <0x0 0x0 0x0 0x2 &gic 0x0 0xc3 0x1>,
79                            <0x0 0x0 0x0 0x3 &gic 0x0 0xc4 0x1>,
80                            <0x0 0x0 0x0 0x4 &gic 0x0 0xc5 0x1>;
81            dma-coherent;
82            clocks = <&pcie0clk 0>;
83        };
84    };
85