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-rw-r--r-- | Documentation/devicetree/bindings/phy/mscc,vsc7514-serdes.yaml | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/phy/mscc,vsc7514-serdes.yaml b/Documentation/devicetree/bindings/phy/mscc,vsc7514-serdes.yaml new file mode 100644 index 000000000..3169b8732 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/mscc,vsc7514-serdes.yaml @@ -0,0 +1,56 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/phy/mscc,vsc7514-serdes.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microsemi Ocelot SerDes muxing + +maintainers: + - Alexandre Belloni <alexandre.belloni@bootlin.com> + - UNGLinuxDriver@microchip.com + +description: | + On Microsemi Ocelot, there is a handful of registers in HSIO address + space for setting up the SerDes to switch port muxing. + + A SerDes X can be "muxed" to work with switch port Y or Z for example. + One specific SerDes can also be used as a PCIe interface. + + Hence, a SerDes represents an interface, be it an Ethernet or a PCIe one. + + There are two kinds of SerDes: SERDES1G supports 10/100Mbps in + half/full-duplex and 1000Mbps in full-duplex mode while SERDES6G supports + 10/100Mbps in half/full-duplex and 1000/2500Mbps in full-duplex mode. + + Also, SERDES6G number (aka "macro") 0 is the only interface supporting + QSGMII. + + This is a child of the HSIO syscon ("mscc,ocelot-hsio", see + Documentation/devicetree/bindings/mips/mscc.txt) on the Microsemi Ocelot. + +properties: + compatible: + enum: + - mscc,vsc7514-serdes + + "#phy-cells": + const: 2 + description: | + The first number defines the input port to use for a given SerDes macro. + The second defines the macro to use. They are defined in + dt-bindings/phy/phy-ocelot-serdes.h + +required: + - compatible + - "#phy-cells" + +additionalProperties: + false + +examples: + - | + serdes: serdes { + compatible = "mscc,vsc7514-serdes"; + #phy-cells = <2>; + }; |