Commit 919ba6e7 authored by Rob Herring's avatar Rob Herring

dt-bindings: PCI: Convert Arm Versatile binding to DT schema

Convert the Arm Versatile PCI host binding to a DT schema.

Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Andrew Murray <andrew.murray@arm.com>
Acked-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 7dcde0f3
* ARM Versatile Platform Baseboard PCI interface
PCI host controller found on the ARM Versatile PB board's FPGA.
Required properties:
- compatible: should contain "arm,versatile-pci" to identify the Versatile PCI
controller.
- reg: base addresses and lengths of the PCI controller. There must be 3
entries:
- Versatile-specific registers
- Self Config space
- Config space
- #address-cells: set to <3>
- #size-cells: set to <2>
- device_type: set to "pci"
- bus-range: set to <0 0xff>
- ranges: ranges for the PCI memory and I/O regions
- #interrupt-cells: set to <1>
- interrupt-map-mask and interrupt-map: standard PCI properties to define
the mapping of the PCI interface to interrupt numbers.
Example:
pci-controller@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>;
};
# 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
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>;
};
...
...@@ -12580,7 +12580,7 @@ M: Rob Herring <robh@kernel.org> ...@@ -12580,7 +12580,7 @@ M: Rob Herring <robh@kernel.org>
L: linux-pci@vger.kernel.org L: linux-pci@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org L: linux-arm-kernel@lists.infradead.org
S: Maintained S: Maintained
F: Documentation/devicetree/bindings/pci/versatile.txt F: Documentation/devicetree/bindings/pci/versatile.yaml
F: drivers/pci/controller/pci-versatile.c F: drivers/pci/controller/pci-versatile.c
PCI DRIVER FOR ARMADA 8K PCI DRIVER FOR ARMADA 8K
......
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