xref: /linux/Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml (revision 5d2d4a9f603a47403395408f64b1261ca61f6d50) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2# Copyright (C) 2022-2023 Renesas Electronics Corp.
3%YAML 1.2
4---
5$id: http://devicetree.org/schemas/pci/rcar-gen4-pci-host.yaml#
6$schema: http://devicetree.org/meta-schemas/core.yaml#
7
8title: Renesas R-Car Gen4 PCIe Host
9
10maintainers:
11  - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
12
13allOf:
14  - $ref: snps,dw-pcie.yaml#
15
16properties:
17  compatible:
18    items:
19      - const: renesas,r8a779f0-pcie   # R-Car S4-8
20      - const: renesas,rcar-gen4-pcie  # R-Car Gen4
21
22  reg:
23    maxItems: 7
24
25  reg-names:
26    items:
27      - const: dbi
28      - const: dbi2
29      - const: atu
30      - const: dma
31      - const: app
32      - const: phy
33      - const: config
34
35  interrupts:
36    maxItems: 4
37
38  interrupt-names:
39    items:
40      - const: msi
41      - const: dma
42      - const: sft_ce
43      - const: app
44
45  clocks:
46    maxItems: 2
47
48  clock-names:
49    items:
50      - const: core
51      - const: ref
52
53  power-domains:
54    maxItems: 1
55
56  resets:
57    maxItems: 1
58
59  reset-names:
60    items:
61      - const: pwr
62
63  max-link-speed:
64    maximum: 4
65
66  num-lanes:
67    maximum: 4
68
69required:
70  - compatible
71  - reg
72  - reg-names
73  - interrupts
74  - interrupt-names
75  - clocks
76  - clock-names
77  - power-domains
78  - resets
79  - reset-names
80
81unevaluatedProperties: false
82
83examples:
84  - |
85    #include <dt-bindings/clock/r8a779f0-cpg-mssr.h>
86    #include <dt-bindings/interrupt-controller/arm-gic.h>
87    #include <dt-bindings/power/r8a779f0-sysc.h>
88
89    soc {
90        #address-cells = <2>;
91        #size-cells = <2>;
92
93        pcie: pcie@e65d0000 {
94            compatible = "renesas,r8a779f0-pcie", "renesas,rcar-gen4-pcie";
95            reg = <0 0xe65d0000 0 0x1000>, <0 0xe65d2000 0 0x0800>,
96                  <0 0xe65d3000 0 0x2000>, <0 0xe65d5000 0 0x1200>,
97                  <0 0xe65d6200 0 0x0e00>, <0 0xe65d7000 0 0x0400>,
98                  <0 0xfe000000 0 0x400000>;
99            reg-names = "dbi", "dbi2", "atu", "dma", "app", "phy", "config";
100            interrupts = <GIC_SPI 416 IRQ_TYPE_LEVEL_HIGH>,
101                         <GIC_SPI 417 IRQ_TYPE_LEVEL_HIGH>,
102                         <GIC_SPI 418 IRQ_TYPE_LEVEL_HIGH>,
103                         <GIC_SPI 422 IRQ_TYPE_LEVEL_HIGH>;
104            interrupt-names = "msi", "dma", "sft_ce", "app";
105            clocks = <&cpg CPG_MOD 624>, <&pcie0_clkref>;
106            clock-names = "core", "ref";
107            power-domains = <&sysc R8A779F0_PD_ALWAYS_ON>;
108            resets = <&cpg 624>;
109            reset-names = "pwr";
110            max-link-speed = <4>;
111            num-lanes = <2>;
112            #address-cells = <3>;
113            #size-cells = <2>;
114            bus-range = <0x00 0xff>;
115            device_type = "pci";
116            ranges = <0x01000000 0 0x00000000 0 0xfe000000 0 0x00400000>,
117                     <0x02000000 0 0x30000000 0 0x30000000 0 0x10000000>;
118            dma-ranges = <0x42000000 0 0x00000000 0 0x00000000 1 0x00000000>;
119            #interrupt-cells = <1>;
120            interrupt-map-mask = <0 0 0 7>;
121            interrupt-map = <0 0 0 1 &gic GIC_SPI 416 IRQ_TYPE_LEVEL_HIGH>,
122                            <0 0 0 2 &gic GIC_SPI 416 IRQ_TYPE_LEVEL_HIGH>,
123                            <0 0 0 3 &gic GIC_SPI 416 IRQ_TYPE_LEVEL_HIGH>,
124                            <0 0 0 4 &gic GIC_SPI 416 IRQ_TYPE_LEVEL_HIGH>;
125            snps,enable-cdm-check;
126        };
127    };
128