xref: /linux/Documentation/devicetree/bindings/pci/intel,keembay-pcie.yaml (revision 50b7e7082a3dde5bdba14a4e40a2e2279fd08a7b) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pci/intel,keembay-pcie.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Intel Keem Bay PCIe controller Root Complex mode
8
9maintainers:
10  - Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@intel.com>
11  - Srikanth Thokala <srikanth.thokala@intel.com>
12
13allOf:
14  - $ref: /schemas/pci/pci-host-bridge.yaml#
15
16properties:
17  compatible:
18    const: intel,keembay-pcie
19
20  ranges:
21    maxItems: 1
22
23  reset-gpios:
24    maxItems: 1
25
26  reg:
27    maxItems: 4
28
29  reg-names:
30    items:
31      - const: dbi
32      - const: atu
33      - const: config
34      - const: apb
35
36  clocks:
37    maxItems: 2
38
39  clock-names:
40    items:
41      - const: master
42      - const: aux
43
44  interrupts:
45    maxItems: 3
46
47  interrupt-names:
48    items:
49      - const: pcie
50      - const: pcie_ev
51      - const: pcie_err
52
53  num-lanes:
54    description: Number of lanes to use.
55    enum: [ 1, 2 ]
56
57required:
58  - compatible
59  - reg
60  - reg-names
61  - ranges
62  - clocks
63  - clock-names
64  - interrupts
65  - interrupt-names
66  - reset-gpios
67
68unevaluatedProperties: false
69
70examples:
71  - |
72    #include <dt-bindings/interrupt-controller/arm-gic.h>
73    #include <dt-bindings/interrupt-controller/irq.h>
74    #include <dt-bindings/gpio/gpio.h>
75    #define KEEM_BAY_A53_PCIE
76    #define KEEM_BAY_A53_AUX_PCIE
77    pcie@37000000 {
78        compatible = "intel,keembay-pcie";
79        reg = <0x37000000 0x00001000>,
80              <0x37300000 0x00001000>,
81              <0x36e00000 0x00200000>,
82              <0x37800000 0x00000200>;
83        reg-names = "dbi", "atu", "config", "apb";
84        #address-cells = <3>;
85        #size-cells = <2>;
86        device_type = "pci";
87        ranges = <0x02000000 0 0x36000000 0x36000000 0 0x00e00000>;
88        interrupts = <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>,
89                     <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>,
90                     <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>;
91        interrupt-names = "pcie", "pcie_ev", "pcie_err";
92        clocks = <&scmi_clk KEEM_BAY_A53_PCIE>,
93                 <&scmi_clk KEEM_BAY_A53_AUX_PCIE>;
94        clock-names = "master", "aux";
95        reset-gpios = <&pca2 9 GPIO_ACTIVE_LOW>;
96        num-lanes = <2>;
97    };
98