kernel/Documentation/devicetree/bindings/pci/versatile.yaml

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2024-07-22 17:22:30 +08:00
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/pci/versatile.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ARM Versatile Platform Baseboard PCI interface
maintainers:
- Rob Herring <robh@kernel.org>
description: |+
PCI host controller found on the ARM Versatile PB board's FPGA.
allOf:
- $ref: /schemas/pci/pci-bus.yaml#
properties:
compatible:
const: arm,versatile-pci
reg:
items:
- description: Versatile-specific registers
- description: Self Config space
- description: Config space
ranges:
maxItems: 3
"#interrupt-cells": true
interrupt-map:
maxItems: 16
interrupt-map-mask:
items:
- const: 0x1800
- const: 0
- const: 0
- const: 7
required:
- compatible
- reg
- ranges
- "#interrupt-cells"
- interrupt-map
- interrupt-map-mask
unevaluatedProperties: false
examples:
- |
pci@10001000 {
compatible = "arm,versatile-pci";
device_type = "pci";
reg = <0x10001000 0x1000>,
<0x41000000 0x10000>,
<0x42000000 0x100000>;
bus-range = <0 0xff>;
#address-cells = <3>;
#size-cells = <2>;
#interrupt-cells = <1>;
ranges =
<0x01000000 0 0x00000000 0x43000000 0 0x00010000>, /* downstream I/O */
<0x02000000 0 0x50000000 0x50000000 0 0x10000000>, /* non-prefetchable memory */
<0x42000000 0 0x60000000 0x60000000 0 0x10000000>; /* prefetchable memory */
interrupt-map-mask = <0x1800 0 0 7>;
interrupt-map = <0x1800 0 0 1 &sic 28>,
<0x1800 0 0 2 &sic 29>,
<0x1800 0 0 3 &sic 30>,
<0x1800 0 0 4 &sic 27>,
<0x1000 0 0 1 &sic 27>,
<0x1000 0 0 2 &sic 28>,
<0x1000 0 0 3 &sic 29>,
<0x1000 0 0 4 &sic 30>,
<0x0800 0 0 1 &sic 30>,
<0x0800 0 0 2 &sic 27>,
<0x0800 0 0 3 &sic 28>,
<0x0800 0 0 4 &sic 29>,
<0x0000 0 0 1 &sic 29>,
<0x0000 0 0 2 &sic 30>,
<0x0000 0 0 3 &sic 27>,
<0x0000 0 0 4 &sic 28>;
};
...