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diff --git a/Documentation/devicetree/bindings/net/dsa/mscc,ocelot.yaml b/Documentation/devicetree/bindings/net/dsa/mscc,ocelot.yaml new file mode 100644 index 000000000..8d93ed9c1 --- /dev/null +++ b/Documentation/devicetree/bindings/net/dsa/mscc,ocelot.yaml @@ -0,0 +1,260 @@ +# SPDX-License-Identifier: (GPL-2.0 OR MIT) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/dsa/mscc,ocelot.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip Ocelot Switch Family Device Tree Bindings + +maintainers: + - Vladimir Oltean <vladimir.oltean@nxp.com> + - Claudiu Manoil <claudiu.manoil@nxp.com> + - Alexandre Belloni <alexandre.belloni@bootlin.com> + - UNGLinuxDriver@microchip.com + +description: | + There are multiple switches which are either part of the Ocelot-1 family, or + derivatives of this architecture. These switches can be found embedded in + various SoCs and accessed using MMIO, or as discrete chips and accessed over + SPI or PCIe. The present DSA binding shall be used when the host controlling + them performs packet I/O primarily through an Ethernet port of the switch + (which is attached to an Ethernet port of the host), rather than through + Frame DMA or register-based I/O. + + VSC9953 (Seville): + + This is found in the NXP T1040, where it is a memory-mapped platform + device. + + The following PHY interface types are supported: + + - phy-mode = "internal": on ports 8 and 9 + - phy-mode = "sgmii": on ports 0, 1, 2, 3, 4, 5, 6, 7 + - phy-mode = "qsgmii": on ports 0, 1, 2, 3, 4, 5, 6, 7 + - phy-mode = "1000base-x": on ports 0, 1, 2, 3, 4, 5, 6, 7 + + VSC9959 (Felix): + + This is found in the NXP LS1028A. It is a PCI device, part of the larger + enetc root complex. As a result, the ethernet-switch node is a sub-node of + the PCIe root complex node and its "reg" property conforms to the parent + node bindings, describing it as PF 5 of device 0, bus 0. + + If any external switch port is enabled, the enetc PF2 (enetc_port2) should + be enabled as well. This is because the internal MDIO bus (exposed through + EA BAR 0) used to access the MAC PCS registers truly belongs to the enetc + port 2 and not to Felix. + + The following PHY interface types are supported: + + - phy-mode = "internal": on ports 4 and 5 + - phy-mode = "sgmii": on ports 0, 1, 2, 3 + - phy-mode = "qsgmii": on ports 0, 1, 2, 3 + - phy-mode = "usxgmii": on ports 0, 1, 2, 3 + - phy-mode = "1000base-x": on ports 0, 1, 2, 3 + - phy-mode = "2500base-x": on ports 0, 1, 2, 3 + +properties: + compatible: + enum: + - mscc,vsc9953-switch + - pci1957,eef0 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + description: + Used to signal availability of PTP TX timestamps, and state changes of + the MAC merge layer of ports that support Frame Preemption. + + little-endian: true + big-endian: true + +required: + - compatible + - reg + +allOf: + - $ref: dsa.yaml# + - if: + properties: + compatible: + const: pci1957,eef0 + then: + required: + - interrupts + +unevaluatedProperties: false + +examples: + # Felix VSC9959 (NXP LS1028A) + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + + pcie { /* Integrated Endpoint Root Complex */ + #address-cells = <3>; + #size-cells = <2>; + + ethernet-switch@0,5 { + compatible = "pci1957,eef0"; + reg = <0x000500 0 0 0 0>; + interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>; + + ethernet-ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + phy-mode = "qsgmii"; + phy-handle = <&phy0>; + managed = "in-band-status"; + }; + + port@1 { + reg = <1>; + phy-mode = "qsgmii"; + phy-handle = <&phy1>; + managed = "in-band-status"; + }; + + port@2 { + reg = <2>; + phy-mode = "qsgmii"; + phy-handle = <&phy2>; + managed = "in-band-status"; + }; + + port@3 { + reg = <3>; + phy-mode = "qsgmii"; + phy-handle = <&phy3>; + managed = "in-band-status"; + }; + + port@4 { + reg = <4>; + ethernet = <&enetc_port2>; + phy-mode = "internal"; + + fixed-link { + speed = <2500>; + full-duplex; + pause; + }; + }; + + port@5 { + reg = <5>; + ethernet = <&enetc_port3>; + phy-mode = "internal"; + + fixed-link { + speed = <1000>; + full-duplex; + pause; + }; + }; + }; + }; + }; + # Seville VSC9953 (NXP T1040) + - | + soc { + #address-cells = <1>; + #size-cells = <1>; + + ethernet-switch@800000 { + compatible = "mscc,vsc9953-switch"; + reg = <0x800000 0x290000>; + little-endian; + + ethernet-ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + phy-mode = "qsgmii"; + phy-handle = <&phy0>; + managed = "in-band-status"; + }; + + port@1 { + reg = <1>; + phy-mode = "qsgmii"; + phy-handle = <&phy1>; + managed = "in-band-status"; + }; + + port@2 { + reg = <2>; + phy-mode = "qsgmii"; + phy-handle = <&phy2>; + managed = "in-band-status"; + }; + + port@3 { + reg = <3>; + phy-mode = "qsgmii"; + phy-handle = <&phy3>; + managed = "in-band-status"; + }; + + port@4 { + reg = <4>; + phy-mode = "qsgmii"; + phy-handle = <&phy4>; + managed = "in-band-status"; + }; + + port@5 { + reg = <5>; + phy-mode = "qsgmii"; + phy-handle = <&phy5>; + managed = "in-band-status"; + }; + + port@6 { + reg = <6>; + phy-mode = "qsgmii"; + phy-handle = <&phy6>; + managed = "in-band-status"; + }; + + port@7 { + reg = <7>; + phy-mode = "qsgmii"; + phy-handle = <&phy7>; + managed = "in-band-status"; + }; + + port@8 { + reg = <8>; + phy-mode = "internal"; + ethernet = <&enet0>; + + fixed-link { + speed = <2500>; + full-duplex; + pause; + }; + }; + + port@9 { + reg = <9>; + phy-mode = "internal"; + ethernet = <&enet1>; + + fixed-link { + speed = <2500>; + full-duplex; + pause; + }; + }; + }; + }; + }; |