xref: /freebsd/sys/contrib/device-tree/Bindings/pci/v3,v360epc-pci.yaml (revision ae5de77ed78ae54d86cead5604869212e8008e6b)

# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/pci/v3,v360epc-pci.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: V3 Semiconductor V360 EPC PCI bridge

maintainers:
  - Linus Walleij <linus.walleij@linaro.org>

description:
  This bridge is found in the ARM Integrator/AP (Application Platform)

allOf:
  - $ref: /schemas/pci/pci-host-bridge.yaml#

properties:
  compatible:
    items:
      - const: arm,integrator-ap-pci
      - const: v3,v360epc-pci

  reg:
    items:
      - description: V3 host bridge controller
      - description: Configuration space

  clocks:
    maxItems: 1

  dma-ranges:
    maxItems: 2
    description:
      The inbound ranges must be aligned to a 1MB boundary, and may be 1MB, 2MB,
      4MB, 8MB, 16MB, 32MB, 64MB, 128MB, 256MB, 512MB, 1GB or 2GB in size. The
      memory should be marked as pre-fetchable.

  interrupts:
    description: Bus Error IRQ
    maxItems: 1

  ranges:
    description:
      The non-prefetchable and prefetchable memory windows must each be exactly
      256MB (0x10000000) in size. The prefetchable memory window must be
      immediately adjacent to the non-prefetchable memory window.

required:
  - compatible
  - reg
  - clocks
  - dma-ranges
  - "#interrupt-cells"
  - interrupt-map
  - interrupt-map-mask

unevaluatedProperties: false

examples:
  - |
    pci@62000000 {
        compatible = "arm,integrator-ap-pci", "v3,v360epc-pci";
        #interrupt-cells = <1>;
        #size-cells = <2>;
        #address-cells = <3>;
        reg = <0x62000000 0x10000>, <0x61000000 0x01000000>;
        device_type = "pci";
        interrupt-parent = <&pic>;
        interrupts = <17>; /* Bus error IRQ */
        clocks = <&pciclk>;
        ranges = <0x01000000 0 0x00000000 0x60000000 0 0x01000000>,     /* 16 MiB @ LB 60000000 */
                 <0x02000000 0 0x40000000 0x40000000 0 0x10000000>,     /* 256 MiB @ LB 40000000 1:1 */
                 <0x42000000 0 0x50000000 0x50000000 0 0x10000000>;     /* 256 MiB @ LB 50000000 1:1 */
        dma-ranges = <0x02000000 0 0x20000000 0x20000000 0 0x20000000>, /* EBI: 512 MB @ LB 20000000 1:1 */
                     <0x02000000 0 0x80000000 0x80000000 0 0x40000000>; /* CM alias: 1GB @ LB 80000000 */
        interrupt-map-mask = <0xf800 0 0 0x7>;
        interrupt-map =
            /* IDSEL 9 */
            <0x4800 0 0 1 &pic 13>, /* INT A on slot 9 is irq 13 */
            <0x4800 0 0 2 &pic 14>, /* INT B on slot 9 is irq 14 */
            <0x4800 0 0 3 &pic 15>, /* INT C on slot 9 is irq 15 */
            <0x4800 0 0 4 &pic 16>, /* INT D on slot 9 is irq 16 */
            /* IDSEL 10 */
            <0x5000 0 0 1 &pic 14>, /* INT A on slot 10 is irq 14 */
            <0x5000 0 0 2 &pic 15>, /* INT B on slot 10 is irq 15 */
            <0x5000 0 0 3 &pic 16>, /* INT C on slot 10 is irq 16 */
            <0x5000 0 0 4 &pic 13>, /* INT D on slot 10 is irq 13 */
            /* IDSEL 11 */
            <0x5800 0 0 1 &pic 15>, /* INT A on slot 11 is irq 15 */
            <0x5800 0 0 2 &pic 16>, /* INT B on slot 11 is irq 16 */
            <0x5800 0 0 3 &pic 13>, /* INT C on slot 11 is irq 13 */
            <0x5800 0 0 4 &pic 14>, /* INT D on slot 11 is irq 14 */
            /* IDSEL 12 */
            <0x6000 0 0 1 &pic 16>, /* INT A on slot 12 is irq 16 */
            <0x6000 0 0 2 &pic 13>, /* INT B on slot 12 is irq 13 */
            <0x6000 0 0 3 &pic 14>, /* INT C on slot 12 is irq 14 */
            <0x6000 0 0 4 &pic 15>; /* INT D on slot 12 is irq 15 */
    };
...