1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 # Copyright (C) 2015, 2019, 2024, Intel Corporation
3 %YAML 1.2
4 ---
5 $id: http://devicetree.org/schemas/altr,pcie-root-port.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
7
8 title: Altera PCIe Root Port
9
10 maintainers:
11 - Matthew Gerlach <matthew.gerlach@linux.intel.com>
12
13 properties:
14 compatible:
15 enum:
16 - altr,pcie-root-port-1.0
17 - altr,pcie-root-port-2.0
18
19 reg:
20 items:
21 - description: TX slave port region
22 - description: Control register access region
23 - description: Hard IP region
24 minItems: 2
25
26 reg-names:
27 items:
28 - const: Txs
29 - const: Cra
30 - const: Hip
31 minItems: 2
32
33 interrupts:
34 maxItems: 1
35
36 interrupt-controller: true
37
38 interrupt-map-mask:
39 items:
40 - const: 0
41 - const: 0
42 - const: 0
43 - const: 7
44
45 interrupt-map:
46 maxItems: 4
47
48 "#interrupt-cells":
49 const: 1
50
51 msi-parent: true
52
53 required:
54 - compatible
55 - reg
56 - reg-names
57 - interrupts
58 - "#interrupt-cells"
59 - interrupt-controller
60 - interrupt-map
61 - interrupt-map-mask
62
63 allOf:
64 - $ref: /schemas/pci/pci-host-bridge.yaml#
65 - if:
66 properties:
67 compatible:
68 enum:
69 - altr,pcie-root-port-1.0
70 then:
71 properties:
72 reg:
73 maxItems: 2
74
75 reg-names:
76 maxItems: 2
77
78 else:
79 properties:
80 reg:
81 minItems: 3
82
83 reg-names:
84 minItems: 3
85
86
87 unevaluatedProperties: false
88
89 examples:
90 - |
91 #include <dt-bindings/interrupt-controller/arm-gic.h>
92 #include <dt-bindings/interrupt-controller/irq.h>
93 pcie_0: pcie@c00000000 {
94 compatible = "altr,pcie-root-port-1.0";
95 reg = <0xc0000000 0x20000000>,
96 <0xff220000 0x00004000>;
97 reg-names = "Txs", "Cra";
98 interrupt-parent = <&hps_0_arm_gic_0>;
99 interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
100 interrupt-controller;
101 #interrupt-cells = <1>;
102 bus-range = <0x0 0xff>;
103 device_type = "pci";
104 msi-parent = <&msi_to_gic_gen_0>;
105 #address-cells = <3>;
106 #size-cells = <2>;
107 interrupt-map-mask = <0 0 0 7>;
108 interrupt-map = <0 0 0 1 &pcie_0 0 0 0 1>,
109 <0 0 0 2 &pcie_0 0 0 0 2>,
110 <0 0 0 3 &pcie_0 0 0 0 3>,
111 <0 0 0 4 &pcie_0 0 0 0 4>;
112 ranges = <0x82000000 0x00000000 0x00000000 0xc0000000 0x00000000 0x10000000>,
113 <0x82000000 0x00000000 0x10000000 0xd0000000 0x00000000 0x10000000>;
114 };
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