Commit 9e71c414 authored by Rob Herring (Arm)'s avatar Rob Herring (Arm) Committed by Bjorn Helgaas
Browse files

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: default avatarRob Herring (Arm) <robh@kernel.org>
Signed-off-by: default avatarManivannan Sadhasivam <mani@kernel.org>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20250710180811.2970846-1-robh@kernel.org
parent f6b5ad2c

Documentation/devicetree/bindings/pci/aardvark-pci.txt

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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@d0070000 {

		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>;

		};

	};

Documentation/devicetree/bindings/pci/marvell,armada-3700-pcie.yaml

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# 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@bootlin.com>

  - Pali Rohár <pali@kernel.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@d0070000 {

            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>;

            };

        };

    };

MAINTAINERS

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@@ -18898,7 +18898,7 @@ M: Pali Rohár <pali@kernel.org> 
L:	linux-pci@vger.kernel.org

L:	linux-arm-kernel@lists.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