Commit bf9d32f2 authored by Rob Herring (Arm)'s avatar Rob Herring (Arm) Committed by Bjorn Helgaas
Browse files

dt-bindings: PCI: Convert amazon,al-alpine-v[23]-pcie to DT schema 



Convert the Amazon Alpine PCIe binding to DT schema format. It's a
straight forward conversion.

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/20250710180825.2971248-1-robh@kernel.org
parent 9e71c414

Documentation/devicetree/bindings/pci/amazon,al-alpine-v3-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/amazon,al-alpine-v3-pcie.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Amazon Annapurna Labs Alpine v3 PCIe Host Bridge



maintainers:

  - Jonathan Chocron <jonnyc@amazon.com>



description:

  Amazon's Annapurna Labs PCIe Host Controller is based on the Synopsys

  DesignWare PCI controller.



allOf:

  - $ref: snps,dw-pcie.yaml#



properties:

  compatible:

    enum:

      - amazon,al-alpine-v2-pcie

      - amazon,al-alpine-v3-pcie



  reg:

    items:

      - description: PCIe ECAM space

      - description: AL proprietary registers

      - description: Designware PCIe registers



  reg-names:

    items:

      - const: config

      - const: controller

      - const: dbi



  interrupts:

    maxItems: 1



unevaluatedProperties: false



required:

  - compatible

  - reg

  - reg-names



examples:

  - |

    #include <dt-bindings/interrupt-controller/arm-gic.h>



    bus {

        #address-cells = <2>;

        #size-cells = <2>;



        pcie@fb600000 {

            compatible = "amazon,al-alpine-v3-pcie";

            reg = <0x0 0xfb600000 0x0 0x00100000

                  0x0 0xfd800000 0x0 0x00010000

                  0x0 0xfd810000 0x0 0x00001000>;

            reg-names = "config", "controller", "dbi";

            bus-range = <0 255>;

            device_type = "pci";

            #address-cells = <3>;

            #size-cells = <2>;

            #interrupt-cells = <1>;

            interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;

            interrupt-map-mask = <0x00 0 0 7>;

            interrupt-map = <0x0000 0 0 1 &gic GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>; /* INTa */

            ranges = <0x02000000 0x0 0xc0010000 0x0 0xc0010000 0x0 0x07ff0000>;

        };

    };

Documentation/devicetree/bindings/pci/pcie-al.txt

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* Amazon Annapurna Labs PCIe host bridge



Amazon's Annapurna Labs PCIe Host Controller is based on the Synopsys DesignWare

PCI core. It inherits common properties defined in

Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml.



Properties of the host controller node that differ from it are:



- compatible:

	Usage: required

	Value type: <stringlist>

	Definition: Value should contain

			- "amazon,al-alpine-v2-pcie" for alpine_v2

			- "amazon,al-alpine-v3-pcie" for alpine_v3



- reg:

	Usage: required

	Value type: <prop-encoded-array>

	Definition: Register ranges as listed in the reg-names property



- reg-names:

	Usage: required

	Value type: <stringlist>

	Definition: Must include the following entries

			- "config"	PCIe ECAM space

			- "controller"	AL proprietary registers

			- "dbi"		Designware PCIe registers



Example:



	pcie-external0: pcie@fb600000 {

		compatible = "amazon,al-alpine-v3-pcie";

		reg = <0x0 0xfb600000 0x0 0x00100000

		       0x0 0xfd800000 0x0 0x00010000

		       0x0 0xfd810000 0x0 0x00001000>;

		reg-names = "config", "controller", "dbi";

		bus-range = <0 255>;

		device_type = "pci";

		#address-cells = <3>;

		#size-cells = <2>;

		#interrupt-cells = <1>;

		interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;

		interrupt-map-mask = <0x00 0 0 7>;

		interrupt-map = <0x0000 0 0 1 &gic GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>; /* INTa */

		ranges = <0x02000000 0x0 0xc0010000 0x0 0xc0010000 0x0 0x07ff0000>;

	};

Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml

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@@ -108,7 +108,7 @@ properties: 
            - description: See native 'dbi' CSR region for details.

              enum: [ ctrl ]

            - description: See native 'elbi/app' CSR region for details.

              enum: [ apb, mgmt, link, ulreg, appl ]

              enum: [ apb, mgmt, link, ulreg, appl, controller ]

            - description: See native 'atu' CSR region for details.

              enum: [ atu_dma ]

            - description: Syscon-related CSR regions.

MAINTAINERS

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@@ -19232,7 +19232,7 @@ PCIE DRIVER FOR AMAZON ANNAPURNA LABS 
M:	Jonathan Chocron <jonnyc@amazon.com>

L:	linux-pci@vger.kernel.org

S:	Maintained

F:	Documentation/devicetree/bindings/pci/pcie-al.txt

F:	Documentation/devicetree/bindings/pci/amazon,al-alpine-v3-pcie.yaml

F:	drivers/pci/controller/dwc/pcie-al.c









PCIE DRIVER FOR AMLOGIC MESON