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Message-ID: <20250710180811.2970846-1-robh@kernel.org>
Date: Thu, 10 Jul 2025 13:08:05 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Bjorn Helgaas <bhelgaas@...gle.com>,
Lorenzo Pieralisi <lpieralisi@...nel.org>,
Krzysztof Wilczyński <kwilczynski@...nel.org>,
Manivannan Sadhasivam <mani@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
Pali Rohár <pali@...nel.org>
Cc: linux-pci@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Subject: [PATCH] dt-bindings: PCI: Convert marvell,armada-3700-pcie to DT schema
Convert the Marvell Armada 3700 PCIe binding to DT schema format.
The 'clocks' property was missing and has been added.
Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
.../devicetree/bindings/pci/aardvark-pci.txt | 59 -----------
.../pci/marvell,armada-3700-pcie.yaml | 99 +++++++++++++++++++
MAINTAINERS | 2 +-
3 files changed, 100 insertions(+), 60 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/pci/aardvark-pci.txt
create mode 100644 Documentation/devicetree/bindings/pci/marvell,armada-3700-pcie.yaml
diff --git a/Documentation/devicetree/bindings/pci/aardvark-pci.txt b/Documentation/devicetree/bindings/pci/aardvark-pci.txt
deleted file mode 100644
index 2b8ca920a7fa..000000000000
--- a/Documentation/devicetree/bindings/pci/aardvark-pci.txt
+++ /dev/null
@@ -1,59 +0,0 @@
-Aardvark PCIe controller
-
-This PCIe controller is used on the Marvell Armada 3700 ARM64 SoC.
-
-The Device Tree node describing an Aardvark PCIe controller must
-contain the following properties:
-
- - compatible: Should be "marvell,armada-3700-pcie"
- - reg: range of registers for the PCIe controller
- - interrupts: the interrupt line of the PCIe controller
- - #address-cells: set to <3>
- - #size-cells: set to <2>
- - device_type: set to "pci"
- - ranges: ranges for the PCI memory and I/O regions
- - #interrupt-cells: set to <1>
- - msi-controller: indicates that the PCIe controller can itself
- handle MSI interrupts
- - msi-parent: pointer to the MSI controller to be used
- - interrupt-map-mask and interrupt-map: standard PCI properties to
- define the mapping of the PCIe interface to interrupt numbers.
- - bus-range: PCI bus numbers covered
- - phys: the PCIe PHY handle
- - max-link-speed: see pci.txt
- - reset-gpios: see pci.txt
-
-In addition, the Device Tree describing an Aardvark PCIe controller
-must include a sub-node that describes the legacy interrupt controller
-built into the PCIe controller. This sub-node must have the following
-properties:
-
- - interrupt-controller
- - #interrupt-cells: set to <1>
-
-Example:
-
- pcie0: pcie@...70000 {
- compatible = "marvell,armada-3700-pcie";
- device_type = "pci";
- reg = <0 0xd0070000 0 0x20000>;
- #address-cells = <3>;
- #size-cells = <2>;
- bus-range = <0x00 0xff>;
- interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
- #interrupt-cells = <1>;
- msi-controller;
- msi-parent = <&pcie0>;
- ranges = <0x82000000 0 0xe8000000 0 0xe8000000 0 0x1000000 /* Port 0 MEM */
- 0x81000000 0 0xe9000000 0 0xe9000000 0 0x10000>; /* Port 0 IO*/
- interrupt-map-mask = <0 0 0 7>;
- interrupt-map = <0 0 0 1 &pcie_intc 0>,
- <0 0 0 2 &pcie_intc 1>,
- <0 0 0 3 &pcie_intc 2>,
- <0 0 0 4 &pcie_intc 3>;
- phys = <&comphy1 0>;
- pcie_intc: interrupt-controller {
- interrupt-controller;
- #interrupt-cells = <1>;
- };
- };
diff --git a/Documentation/devicetree/bindings/pci/marvell,armada-3700-pcie.yaml b/Documentation/devicetree/bindings/pci/marvell,armada-3700-pcie.yaml
new file mode 100644
index 000000000000..68090b3ca419
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/marvell,armada-3700-pcie.yaml
@@ -0,0 +1,99 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/marvell,armada-3700-pcie.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Armada 3700 (Aardvark) PCIe Controller
+
+maintainers:
+ - Thomas Petazzoni <thomas.petazzoni@...tlin.com>
+ - Pali Rohár <pali@...nel.org>
+
+allOf:
+ - $ref: /schemas/pci/pci-host-bridge.yaml#
+
+properties:
+ compatible:
+ const: marvell,armada-3700-pcie
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ msi-controller: true
+
+ msi-parent:
+ maxItems: 1
+
+ phys:
+ maxItems: 1
+
+ reset-gpios:
+ description: PCIe reset GPIO signals.
+
+ interrupt-controller:
+ type: object
+ additionalProperties: false
+
+ properties:
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 1
+
+ required:
+ - interrupt-controller
+ - '#interrupt-cells'
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - '#interrupt-cells'
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/gpio/gpio.h>
+
+ bus {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ pcie@...70000 {
+ compatible = "marvell,armada-3700-pcie";
+ device_type = "pci";
+ reg = <0 0xd0070000 0 0x20000>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ bus-range = <0x00 0xff>;
+ interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
+ msi-controller;
+ msi-parent = <&pcie0>;
+ ranges = <0x82000000 0 0xe8000000 0 0xe8000000 0 0x1000000>,
+ <0x81000000 0 0xe9000000 0 0xe9000000 0 0x10000>;
+
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0 0 0 7>;
+ interrupt-map = <0 0 0 1 &pcie_intc 0>,
+ <0 0 0 2 &pcie_intc 1>,
+ <0 0 0 3 &pcie_intc 2>,
+ <0 0 0 4 &pcie_intc 3>;
+ phys = <&comphy1 0>;
+ max-link-speed = <2>;
+ reset-gpios = <&gpio1 15 GPIO_ACTIVE_LOW>;
+
+ pcie_intc: interrupt-controller {
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 17085b8a393f..d0df1130d5ff 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -18898,7 +18898,7 @@ M: Pali Rohár <pali@...nel.org>
L: linux-pci@...r.kernel.org
L: linux-arm-kernel@...ts.infradead.org (moderated for non-subscribers)
S: Maintained
-F: Documentation/devicetree/bindings/pci/aardvark-pci.txt
+F: Documentation/devicetree/bindings/pci/marvell,armada-3700-pcie.yaml
F: drivers/pci/controller/pci-aardvark.c
PCI DRIVER FOR ALTERA PCIE IP
--
2.47.2
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