ti,am65-pci-host.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 # Copyright (C) 2021 Texas Instruments Incorporated - http://www.ti.com/
    3 %YAML 1.2
    4 ---
    5 $id: http://devicetree.org/schemas/pci/ti,am65-pci-host.yaml#
    6 $schema: http://devicetree.org/meta-schemas/core.yaml#
    7 
    8 title: TI AM65 PCI Host
    9 
   10 maintainers:
   11   - Kishon Vijay Abraham I <kishon@ti.com>
   12 
   13 allOf:
   14   - $ref: /schemas/pci/pci-bus.yaml#
   15 
   16 properties:
   17   compatible:
   18     enum:
   19       - ti,am654-pcie-rc
   20       - ti,keystone-pcie
   21 
   22   reg:
   23     maxItems: 4
   24 
   25   reg-names:
   26     items:
   27       - const: app
   28       - const: dbics
   29       - const: config
   30       - const: atu
   31 
   32   interrupts:
   33     maxItems: 1
   34 
   35   power-domains:
   36     maxItems: 1
   37 
   38   ti,syscon-pcie-id:
   39     $ref: /schemas/types.yaml#/definitions/phandle-array
   40     items:
   41       - items:
   42           - description: Phandle to the SYSCON entry
   43           - description: pcie_device_id register offset within SYSCON
   44     description: Phandle to the SYSCON entry required for getting PCIe device/vendor ID
   45 
   46   ti,syscon-pcie-mode:
   47     $ref: /schemas/types.yaml#/definitions/phandle-array
   48     items:
   49       - items:
   50           - description: Phandle to the SYSCON entry
   51           - description: pcie_ctrl register offset within SYSCON
   52     description: Phandle to the SYSCON entry required for configuring PCIe in RC or EP mode.
   53 
   54   msi-map: true
   55 
   56   dma-coherent: true
   57 
   58 required:
   59   - compatible
   60   - reg
   61   - reg-names
   62   - max-link-speed
   63   - ti,syscon-pcie-id
   64   - ti,syscon-pcie-mode
   65   - ranges
   66 
   67 if:
   68   properties:
   69     compatible:
   70       enum:
   71         - ti,am654-pcie-rc
   72 then:
   73   required:
   74     - dma-coherent
   75     - power-domains
   76     - msi-map
   77 
   78 unevaluatedProperties: false
   79 
   80 examples:
   81   - |
   82     #include <dt-bindings/interrupt-controller/arm-gic.h>
   83     #include <dt-bindings/interrupt-controller/irq.h>
   84     #include <dt-bindings/soc/ti,sci_pm_domain.h>
   85 
   86     pcie0_rc: pcie@5500000 {
   87         compatible = "ti,am654-pcie-rc";
   88         reg =  <0x5500000 0x1000>,
   89                <0x5501000 0x1000>,
   90                <0x10000000 0x2000>,
   91                <0x5506000 0x1000>;
   92         reg-names = "app", "dbics", "config", "atu";
   93         power-domains = <&k3_pds 120 TI_SCI_PD_EXCLUSIVE>;
   94         #address-cells = <3>;
   95         #size-cells = <2>;
   96         ranges = <0x81000000 0 0          0x10020000 0 0x00010000>,
   97                  <0x82000000 0 0x10030000 0x10030000 0 0x07FD0000>;
   98         ti,syscon-pcie-id = <&scm_conf 0x0210>;
   99         ti,syscon-pcie-mode = <&scm_conf 0x4060>;
  100         bus-range = <0x0 0xff>;
  101         max-link-speed = <2>;
  102         dma-coherent;
  103         interrupts = <GIC_SPI 340 IRQ_TYPE_EDGE_RISING>;
  104         msi-map = <0x0 &gic_its 0x0 0x10000>;
  105         device_type = "pci";
  106     };

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sys/contrib/device-tree/Bindings/pci/ti,am65-pci-host.yaml