Commit e1bb4b36 authored by Daniel Golle's avatar Daniel Golle Committed by Jakub Kicinski
Browse files

dt-bindings: net: dsa: lantiq,gswip: add support for MaxLinear GSW1xx switches 



Extend the Lantiq GSWIP device tree binding to also cover MaxLinear
GSW1xx switches which are based on the same hardware IP but connected
via MDIO instead of being memory-mapped.

Add compatible strings for MaxLinear GSW120, GSW125, GSW140, GSW141,
and GSW145 switches and adjust the schema to handle the different
connection methods with conditional properties.

Add MaxLinear GSW125 example showing MDIO-connected configuration.

Signed-off-by: default avatarDaniel Golle <daniel@makrotopia.org>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/fc96f1dedb2b418a63e69960356dde7f6eb86424.1762170107.git.daniel@makrotopia.org


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent cdef8e47

Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml

+123 −5
Original line number Diff line number Diff line
@@ -4,7 +4,12 @@ 
$id: http://devicetree.org/schemas/net/dsa/lantiq,gswip.yaml#

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



title: Lantiq GSWIP Ethernet switches

title: Lantiq GSWIP and MaxLinear GSW1xx Ethernet switches



description:

  Lantiq GSWIP and MaxLinear GSW1xx switches share the same hardware IP.

  Lantiq switches are embedded in SoCs and accessed via memory-mapped I/O,

  while MaxLinear switches are standalone ICs connected via MDIO.



$ref: dsa.yaml#
@@ -17,9 +22,14 @@ properties: 
      - lantiq,xrx200-gswip

      - lantiq,xrx300-gswip

      - lantiq,xrx330-gswip

      - maxlinear,gsw120

      - maxlinear,gsw125

      - maxlinear,gsw140

      - maxlinear,gsw141

      - maxlinear,gsw145



  reg:

    minItems: 3

    minItems: 1

    maxItems: 3



  reg-names:
@@ -36,9 +46,6 @@ properties: 
      compatible:

        const: lantiq,xrx200-mdio



    required:

      - compatible



  gphy-fw:

    type: object

    properties:
@@ -123,6 +130,30 @@ required: 
  - compatible

  - reg



allOf:

  - if:

      properties:

        compatible:

          contains:

            enum:

              - lantiq,xrx200-gswip

              - lantiq,xrx300-gswip

              - lantiq,xrx330-gswip

    then:

      properties:

        reg:

          minItems: 3

          maxItems: 3

        mdio:

          required:

            - compatible

    else:

      properties:

        reg:

          maxItems: 1

        reg-names: false

        gphy-fw: false



unevaluatedProperties: false



examples:
@@ -230,3 +261,90 @@ examples: 
                    };

            };

    };



  - |

    #include <dt-bindings/leds/common.h>



    mdio {

        #address-cells = <1>;

        #size-cells = <0>;



        switch@1f {

            compatible = "maxlinear,gsw125";

            reg = <0x1f>;



            ports {

                #address-cells = <1>;

                #size-cells = <0>;



                port@0 {

                    reg = <0>;

                    label = "lan0";

                    phy-handle = <&switchphy0>;

                    phy-mode = "internal";

                };



                port@1 {

                    reg = <1>;

                    label = "lan1";

                    phy-handle = <&switchphy1>;

                    phy-mode = "internal";

                };



                port@4 {

                    reg = <4>;

                    label = "wan";

                    phy-mode = "1000base-x";

                    managed = "in-band-status";

                };



                port@5 {

                    reg = <5>;

                    phy-mode = "rgmii-id";

                    tx-internal-delay-ps = <2000>;

                    rx-internal-delay-ps = <2000>;

                    ethernet = <&eth0>;



                    fixed-link {

                        speed = <1000>;

                        full-duplex;

                    };

                };

            };



            mdio {

                #address-cells = <1>;

                #size-cells = <0>;



                switchphy0: switchphy@0 {

                    reg = <0>;



                    leds {

                        #address-cells = <1>;

                        #size-cells = <0>;



                        led@0 {

                            reg = <0>;

                            color = <LED_COLOR_ID_GREEN>;

                            function = LED_FUNCTION_LAN;

                        };

                    };

                };



                switchphy1: switchphy@1 {

                    reg = <1>;



                    leds {

                        #address-cells = <1>;

                        #size-cells = <0>;



                        led@0 {

                            reg = <0>;

                            color = <LED_COLOR_ID_GREEN>;

                            function = LED_FUNCTION_LAN;

                        };

                    };

                };

            };

        };

    };