bindings/pci/intel%2Ckeembay-pcie.yaml

0001 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: "http://devicetree.org/schemas/pci/intel,keembay-pcie.yaml#"
0005 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
0006
0007 title: Intel Keem Bay PCIe controller Root Complex mode
0008
0009 maintainers:
0010   - Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@intel.com>
0011   - Srikanth Thokala <srikanth.thokala@intel.com>
0012
0013 allOf:
0014   - $ref: /schemas/pci/pci-bus.yaml#
0015
0016 properties:
0017   compatible:
0018     const: intel,keembay-pcie
0019
0020   ranges:
0021     maxItems: 1
0022
0023   reset-gpios:
0024     maxItems: 1
0025
0026   reg:
0027     maxItems: 4
0028
0029   reg-names:
0030     items:
0031       - const: dbi
0032       - const: atu
0033       - const: config
0034       - const: apb
0035
0036   clocks:
0037     maxItems: 2
0038
0039   clock-names:
0040     items:
0041       - const: master
0042       - const: aux
0043
0044   interrupts:
0045     maxItems: 3
0046
0047   interrupt-names:
0048     items:
0049       - const: pcie
0050       - const: pcie_ev
0051       - const: pcie_err
0052
0053   num-lanes:
0054     description: Number of lanes to use.
0055     enum: [ 1, 2 ]
0056
0057 required:
0058   - compatible
0059   - reg
0060   - reg-names
0061   - ranges
0062   - clocks
0063   - clock-names
0064   - interrupts
0065   - interrupt-names
0066   - reset-gpios
0067
0068 unevaluatedProperties: false
0069
0070 examples:
0071   - |
0072     #include <dt-bindings/interrupt-controller/arm-gic.h>
0073     #include <dt-bindings/interrupt-controller/irq.h>
0074     #include <dt-bindings/gpio/gpio.h>
0075     #define KEEM_BAY_A53_PCIE
0076     #define KEEM_BAY_A53_AUX_PCIE
0077     pcie@37000000 {
0078           compatible = "intel,keembay-pcie";
0079           reg = <0x37000000 0x00001000>,
0080                 <0x37300000 0x00001000>,
0081                 <0x36e00000 0x00200000>,
0082                 <0x37800000 0x00000200>;
0083           reg-names = "dbi", "atu", "config", "apb";
0084           #address-cells = <3>;
0085           #size-cells = <2>;
0086           device_type = "pci";
0087           ranges = <0x02000000 0 0x36000000 0x36000000 0 0x00e00000>;
0088           interrupts = <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>,
0089                        <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>,
0090                        <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>;
0091           interrupt-names = "pcie", "pcie_ev", "pcie_err";
0092           clocks = <&scmi_clk KEEM_BAY_A53_PCIE>,
0093                    <&scmi_clk KEEM_BAY_A53_AUX_PCIE>;
0094           clock-names = "master", "aux";
0095           reset-gpios = <&pca2 9 GPIO_ACTIVE_LOW>;
0096           num-lanes = <2>;
0097     };