Commit 9549c74e authored by Jakub Kicinski's avatar Jakub Kicinski
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Merge branch 'net-dsa-yt921x-add-support-for-motorcomm-yt921x' 

David Yang says:

====================
net: dsa: yt921x: Add support for Motorcomm YT921x

Motorcomm YT921x is a series of ethernet switches developed by Shanghai
Motorcomm Electronic Technology, including:

  - YT9215S / YT9215RB / YT9215SC: 5 GbE phys
  - YT9213NB / YT9214NB: 2 GbE phys
  - YT9218N / YT9218MB: 8 GbE phys

and up to 2 serdes interfaces.

This patch adds basic support for a working DSA switch.
====================

Link: https://patch.msgid.link/20251017060859.326450-1-mmyangfl@gmail.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parents 21e45ec8 0c5480ac

Documentation/devicetree/bindings/net/dsa/motorcomm,yt921x.yaml

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/net/dsa/motorcomm,yt921x.yaml#

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



title: Motorcomm YT921x Ethernet switch family



maintainers:

  - David Yang <mmyangfl@gmail.com>



description: |

  The Motorcomm YT921x series is a family of Ethernet switches with up to 8

  internal GbE PHYs and up to 2 GMACs, including:



    - YT9215S / YT9215RB / YT9215SC: 5 GbE PHYs (Port 0-4) + 2 GMACs (Port 8-9)

    - YT9213NB: 2 GbE PHYs (Port 1/3) + 1 GMAC (Port 9)

    - YT9214NB: 2 GbE PHYs (Port 1/3) + 2 GMACs (Port 8-9)

    - YT9218N: 8 GbE PHYs (Port 0-7)

    - YT9218MB: 8 GbE PHYs (Port 0-7) + 2 GMACs (Port 8-9)



  Any port can be used as the CPU port.



properties:

  compatible:

    const: motorcomm,yt9215



  reg:

    enum: [0x0, 0x1d]



  reset-gpios:

    maxItems: 1



  mdio:

    $ref: /schemas/net/mdio.yaml#

    unevaluatedProperties: false

    description:

      Internal MDIO bus for the internal GbE PHYs. PHY 0-7 are used for Port

      0-7 respectively.



  mdio-external:

    $ref: /schemas/net/mdio.yaml#

    unevaluatedProperties: false

    description:

      External MDIO bus to access external components. External PHYs for GMACs

      (Port 8-9) are expected to be connected to the external MDIO bus in

      vendor's reference design, but that is not a hard limitation from the

      chip.



required:

  - compatible

  - reg



allOf:

  - $ref: dsa.yaml#/$defs/ethernet-ports



unevaluatedProperties: false



examples:

  - |

    #include <dt-bindings/gpio/gpio.h>



    mdio {

        #address-cells = <1>;

        #size-cells = <0>;



        switch@1d {

            compatible = "motorcomm,yt9215";

            /* default 0x1d, alternate 0x0 */

            reg = <0x1d>;

            reset-gpios = <&tlmm 39 GPIO_ACTIVE_LOW>;



            mdio {

                #address-cells = <1>;

                #size-cells = <0>;



                sw_phy0: phy@0 {

                    reg = <0x0>;

                };



                sw_phy1: phy@1 {

                    reg = <0x1>;

                };



                sw_phy2: phy@2 {

                    reg = <0x2>;

                };



                sw_phy3: phy@3 {

                    reg = <0x3>;

                };



                sw_phy4: phy@4 {

                    reg = <0x4>;

                };

            };



            mdio-external {

                #address-cells = <1>;

                #size-cells = <0>;



                phy1: phy@b {

                    reg = <0xb>;

                };

            };



            ethernet-ports {

                #address-cells = <1>;

                #size-cells = <0>;



                ethernet-port@0 {

                    reg = <0>;

                    label = "lan1";

                    phy-mode = "internal";

                    phy-handle = <&sw_phy0>;

                };



                ethernet-port@1 {

                    reg = <1>;

                    label = "lan2";

                    phy-mode = "internal";

                    phy-handle = <&sw_phy1>;

                };



                ethernet-port@2 {

                    reg = <2>;

                    label = "lan3";

                    phy-mode = "internal";

                    phy-handle = <&sw_phy2>;

                };



                ethernet-port@3 {

                    reg = <3>;

                    label = "lan4";

                    phy-mode = "internal";

                    phy-handle = <&sw_phy3>;

                };



                ethernet-port@4 {

                    reg = <4>;

                    label = "lan5";

                    phy-mode = "internal";

                    phy-handle = <&sw_phy4>;

                };



                /* CPU port */

                ethernet-port@8 {

                    reg = <8>;

                    phy-mode = "2500base-x";

                    ethernet = <&eth0>;



                    fixed-link {

                        speed = <2500>;

                        full-duplex;

                    };

                };



                /* if external phy is connected to a MAC */

                ethernet-port@9 {

                    reg = <9>;

                    label = "wan";

                    phy-mode = "rgmii-id";

                    phy-handle = <&phy1>;

                };

            };

        };

    };

MAINTAINERS

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@@ -17435,6 +17435,14 @@ S: Maintained 
F:	Documentation/devicetree/bindings/net/motorcomm,yt8xxx.yaml

F:	drivers/net/phy/motorcomm.c









MOTORCOMM YT921X ETHERNET SWITCH DRIVER









M:	David Yang <mmyangfl@gmail.com>









L:	netdev@vger.kernel.org









S:	Maintained









F:	Documentation/devicetree/bindings/net/dsa/motorcomm,yt921x.yaml









F:	drivers/net/dsa/yt921x.*









F:	net/dsa/tag_yt921x.c

















MOXA SMARTIO/INDUSTIO/INTELLIO SERIAL CARD









M:	Jiri Slaby <jirislaby@kernel.org>









S:	Maintained

























drivers/net/dsa/Kconfig



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−0






























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@@ -154,4 +154,11 @@ config NET_DSA_VITESSE_VSC73XX_PLATFORM







	  This enables support for the Vitesse VSC7385, VSC7388, VSC7395









	  and VSC7398 SparX integrated ethernet switches, connected over









	  a CPU-attached address bus and work in memory-mapped I/O mode.



















config NET_DSA_YT921X









	tristate "Motorcomm YT9215 ethernet switch chip support"









	select NET_DSA_TAG_YT921X









	help









	  This enables support for the Motorcomm YT9215 ethernet switch









	  chip.









endmenu
























drivers/net/dsa/Makefile



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@@ -14,6 +14,7 @@ obj-$(CONFIG_NET_DSA_SMSC_LAN9303_MDIO) += lan9303_mdio.o







obj-$(CONFIG_NET_DSA_VITESSE_VSC73XX) += vitesse-vsc73xx-core.o









obj-$(CONFIG_NET_DSA_VITESSE_VSC73XX_PLATFORM) += vitesse-vsc73xx-platform.o









obj-$(CONFIG_NET_DSA_VITESSE_VSC73XX_SPI) += vitesse-vsc73xx-spi.o









obj-$(CONFIG_NET_DSA_YT921X) += yt921x.o









obj-y				+= b53/









obj-y				+= hirschmann/









obj-y				+= lantiq/
































drivers/net/dsa/yt921x.c
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