[PATCH 1/3] dt-bindings: PCI: altera: add binding for Agilex 5

From: Mahesh Vaidya

Date: Fri Apr 24 2026 - 05:50:56 EST


Add the compatible string for the Agilex 5 PCIe Hard IP root port
controller.

Co-developed-by: Matthew Gerlach <matthew.gerlach@xxxxxxxxxxxxxxx>
Signed-off-by: Matthew Gerlach <matthew.gerlach@xxxxxxxxxxxxxxx>
Co-developed-by: Peter Colberg <peter.colberg@xxxxxxxxx>
Signed-off-by: Peter Colberg <peter.colberg@xxxxxxxxx>
Signed-off-by: Mahesh Vaidya <mahesh.vaidya@xxxxxxxxxx>
---
.../bindings/pci/altr,pcie-root-port.yaml | 37 ++++++++++---------
1 file changed, 20 insertions(+), 17 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml b/Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml
index f516db47ab20..f9c2089bad34 100644
--- a/Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml
+++ b/Documentation/devicetree/bindings/pci/altr,pcie-root-port.yaml
@@ -8,16 +8,17 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Altera PCIe Root Port

maintainers:
- - Matthew Gerlach <matthew.gerlach@xxxxxxxxxxxxxxx>
+ - Mahesh Vaidya <mahesh.vaidya@xxxxxxxxxx>

properties:
compatible:
description: Each family of socfpga has its own implementation of the
PCI controller. The altr,pcie-root-port-1.0 is used for the Cyclone5
family of chips. The Stratix10 family of chips is supported by the
- altr,pcie-root-port-2.0. The Agilex family of chips has three,
+ altr,pcie-root-port-2.0. The Agilex7 family of chips has three,
non-register compatible, variants of PCIe Hard IP referred to as the
F-Tile, P-Tile, and R-Tile, depending on the specific chip instance.
+ The altr,pcie-root-port-4.0 is used for the Agilex5 family of chips.

enum:
- altr,pcie-root-port-1.0
@@ -25,20 +26,15 @@ properties:
- altr,pcie-root-port-3.0-f-tile
- altr,pcie-root-port-3.0-p-tile
- altr,pcie-root-port-3.0-r-tile
+ - altr,pcie-root-port-4.0

reg:
- items:
- - description: TX slave port region
- - description: Control register access region
- - description: Hard IP region
minItems: 2
+ maxItems: 3

reg-names:
- items:
- - const: Txs
- - const: Cra
- - const: Hip
minItems: 2
+ maxItems: 3

interrupts:
maxItems: 1
@@ -80,18 +76,25 @@ allOf:
then:
properties:
reg:
- maxItems: 2
-
+ items:
+ - description: TX slave port region
+ - description: Control register access region
reg-names:
- maxItems: 2
-
+ items:
+ - const: Txs
+ - const: Cra
else:
properties:
reg:
- minItems: 3
-
+ items:
+ - description: TX slave port region
+ - description: Control register access region
+ - description: Hard IP region
reg-names:
- minItems: 3
+ items:
+ - const: Txs
+ - const: Cra
+ - const: Hip

unevaluatedProperties: false

--
2.34.1