Commit 6725c334 authored by Rob Herring (Arm)'s avatar Rob Herring (Arm) Committed by Vinod Koul
Browse files

dt-bindings: phy: Convert brcm,sr-pcie-phy to DT schema 



Convert the Broadcom Stingray PCIe PHY binding to DT schema format. It's
a straight forward conversion.

Signed-off-by: default avatarRob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250607212508.741193-1-robh@kernel.org


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent f151f3a6

Documentation/devicetree/bindings/phy/brcm,sr-pcie-phy.txt

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Broadcom Stingray PCIe PHY



Required properties:

- compatible: must be "brcm,sr-pcie-phy"

- reg: base address and length of the PCIe SS register space

- brcm,sr-cdru: phandle to the CDRU syscon node

- brcm,sr-mhb: phandle to the MHB syscon node

- #phy-cells: Must be 1, denotes the PHY index



For PAXB based root complex, one can have a configuration of up to 8 PHYs

PHY index goes from 0 to 7



For the internal PAXC based root complex, PHY index is always 8



Example:

	mhb: syscon@60401000 {

		compatible = "brcm,sr-mhb", "syscon";

		reg = <0 0x60401000 0 0x38c>;

	};



	cdru: syscon@6641d000 {

		compatible = "brcm,sr-cdru", "syscon";

		reg = <0 0x6641d000 0 0x400>;

	};



	pcie_phy: phy@40000000 {

		compatible = "brcm,sr-pcie-phy";

		reg = <0 0x40000000 0 0x800>;

		brcm,sr-cdru = <&cdru>;

		brcm,sr-mhb = <&mhb>;

		#phy-cells = <1>;

	};



	/* users of the PCIe PHY */



	pcie0: pcie@48000000 {

		...

		...

		phys = <&pcie_phy 0>;

		phy-names = "pcie-phy";

	};

Documentation/devicetree/bindings/phy/brcm,sr-pcie-phy.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/phy/brcm,sr-pcie-phy.yaml#

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



title: Broadcom Stingray PCIe PHY



maintainers:

  - Ray Jui <ray.jui@broadcom.com>



description: >

  For PAXB based root complex, one can have a configuration of up to 8 PHYs.

  PHY index goes from 0 to 7.



  For the internal PAXC based root complex, PHY index is always 8.



properties:

  compatible:

    const: brcm,sr-pcie-phy



  reg:

    maxItems: 1



  '#phy-cells':

    const: 1



  brcm,sr-cdru:

    description: phandle to the CDRU syscon node

    $ref: /schemas/types.yaml#/definitions/phandle



  brcm,sr-mhb:

    description: phandle to the MHB syscon node

    $ref: /schemas/types.yaml#/definitions/phandle



additionalProperties: false



examples:

  - |

    phy@40000000 {

        compatible = "brcm,sr-pcie-phy";

        reg = <0x40000000 0x800>;

        brcm,sr-cdru = <&cdru>;

        brcm,sr-mhb = <&mhb>;

        #phy-cells = <1>;

    };