1

dt-bindings: PCI: altera: Convert to YAML

Convert the devicetree bindings for the Altera Root Port PCIe controller
from text to YAML.

While at it, update the entries in the interrupt-map field to have the
correct number of address cells for the interrupt parent.

Link: https://lore.kernel.org/linux-pci/20240702162652.1349121-1-matthew.gerlach@linux.intel.com
Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
[kwilczynski: commit log]
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
This commit is contained in:
Matthew Gerlach 2024-07-02 11:26:52 -05:00 committed by Krzysztof Wilczyński
parent 364cfd8a56
commit b08929e1ec
No known key found for this signature in database
GPG Key ID: 7C64768D3DE334E7
3 changed files with 115 additions and 51 deletions

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@ -1,50 +0,0 @@
* Altera PCIe controller
Required properties:
- compatible : should contain "altr,pcie-root-port-1.0" or "altr,pcie-root-port-2.0"
- reg: a list of physical base address and length for TXS and CRA.
For "altr,pcie-root-port-2.0", additional HIP base address and length.
- reg-names: must include the following entries:
"Txs": TX slave port region
"Cra": Control register access region
"Hip": Hard IP region (if "altr,pcie-root-port-2.0")
- interrupts: specifies the interrupt source of the parent interrupt
controller. The format of the interrupt specifier depends
on the parent interrupt controller.
- device_type: must be "pci"
- #address-cells: set to <3>
- #size-cells: set to <2>
- #interrupt-cells: set to <1>
- ranges: describes the translation of addresses for root ports and
standard PCI regions.
- interrupt-map-mask and interrupt-map: standard PCI properties to define the
mapping of the PCIe interface to interrupt numbers.
Optional properties:
- msi-parent: Link to the hardware entity that serves as the MSI controller
for this PCIe controller.
- bus-range: PCI bus numbers covered
Example
pcie_0: pcie@c00000000 {
compatible = "altr,pcie-root-port-1.0";
reg = <0xc0000000 0x20000000>,
<0xff220000 0x00004000>;
reg-names = "Txs", "Cra";
interrupt-parent = <&hps_0_arm_gic_0>;
interrupts = <0 40 4>;
interrupt-controller;
#interrupt-cells = <1>;
bus-range = <0x0 0xFF>;
device_type = "pci";
msi-parent = <&msi_to_gic_gen_0>;
#address-cells = <3>;
#size-cells = <2>;
interrupt-map-mask = <0 0 0 7>;
interrupt-map = <0 0 0 1 &pcie_0 1>,
<0 0 0 2 &pcie_0 2>,
<0 0 0 3 &pcie_0 3>,
<0 0 0 4 &pcie_0 4>;
ranges = <0x82000000 0x00000000 0x00000000 0xc0000000 0x00000000 0x10000000
0x82000000 0x00000000 0x10000000 0xd0000000 0x00000000 0x10000000>;
};

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@ -0,0 +1,114 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
# Copyright (C) 2015, 2019, 2024, Intel Corporation
%YAML 1.2
---
$id: http://devicetree.org/schemas/altr,pcie-root-port.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Altera PCIe Root Port
maintainers:
- Matthew Gerlach <matthew.gerlach@linux.intel.com>
properties:
compatible:
enum:
- altr,pcie-root-port-1.0
- altr,pcie-root-port-2.0
reg:
items:
- description: TX slave port region
- description: Control register access region
- description: Hard IP region
minItems: 2
reg-names:
items:
- const: Txs
- const: Cra
- const: Hip
minItems: 2
interrupts:
maxItems: 1
interrupt-controller: true
interrupt-map-mask:
items:
- const: 0
- const: 0
- const: 0
- const: 7
interrupt-map:
maxItems: 4
"#interrupt-cells":
const: 1
msi-parent: true
required:
- compatible
- reg
- reg-names
- interrupts
- "#interrupt-cells"
- interrupt-controller
- interrupt-map
- interrupt-map-mask
allOf:
- $ref: /schemas/pci/pci-host-bridge.yaml#
- if:
properties:
compatible:
enum:
- altr,pcie-root-port-1.0
then:
properties:
reg:
maxItems: 2
reg-names:
maxItems: 2
else:
properties:
reg:
minItems: 3
reg-names:
minItems: 3
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>
pcie_0: pcie@c00000000 {
compatible = "altr,pcie-root-port-1.0";
reg = <0xc0000000 0x20000000>,
<0xff220000 0x00004000>;
reg-names = "Txs", "Cra";
interrupt-parent = <&hps_0_arm_gic_0>;
interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
interrupt-controller;
#interrupt-cells = <1>;
bus-range = <0x0 0xff>;
device_type = "pci";
msi-parent = <&msi_to_gic_gen_0>;
#address-cells = <3>;
#size-cells = <2>;
interrupt-map-mask = <0 0 0 7>;
interrupt-map = <0 0 0 1 &pcie_0 0 0 0 1>,
<0 0 0 2 &pcie_0 0 0 0 2>,
<0 0 0 3 &pcie_0 0 0 0 3>,
<0 0 0 4 &pcie_0 0 0 0 4>;
ranges = <0x82000000 0x00000000 0x00000000 0xc0000000 0x00000000 0x10000000>,
<0x82000000 0x00000000 0x10000000 0xd0000000 0x00000000 0x10000000>;
};

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@ -17372,7 +17372,7 @@ PCI DRIVER FOR ALTERA PCIE IP
M: Joyce Ooi <joyce.ooi@intel.com>
L: linux-pci@vger.kernel.org
S: Supported
F: Documentation/devicetree/bindings/pci/altera-pcie.txt
F: Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml
F: drivers/pci/controller/pcie-altera.c
PCI DRIVER FOR APPLIEDMICRO XGENE