Documentation/devicetree/bindings/pci/ti,am65-pci-host.yaml

   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     };