On 07/01/2021 10:19:21+0100, Steen Hegelund wrote: > Document the Sparx5 ethernet serdes phy driver bindings. > > Signed-off-by: Lars Povlsen <lars.povlsen@xxxxxxxxxxxxx> > Signed-off-by: Steen Hegelund <steen.hegelund@xxxxxxxxxxxxx> > Reviewed-by: Rob Herring <robh@xxxxxxxxxx> > Reviewed-by: Andrew Lunn <andrew@xxxxxxx> Reviewed-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx> > --- > .../bindings/phy/microchip,sparx5-serdes.yaml | 100 ++++++++++++++++++ > 1 file changed, 100 insertions(+) > create mode 100644 Documentation/devicetree/bindings/phy/microchip,sparx5-serdes.yaml > > diff --git a/Documentation/devicetree/bindings/phy/microchip,sparx5-serdes.yaml b/Documentation/devicetree/bindings/phy/microchip,sparx5-serdes.yaml > new file mode 100644 > index 000000000000..bdbdb3bbddbe > --- /dev/null > +++ b/Documentation/devicetree/bindings/phy/microchip,sparx5-serdes.yaml > @@ -0,0 +1,100 @@ > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/phy/microchip,sparx5-serdes.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Microchip Sparx5 Serdes controller > + > +maintainers: > + - Steen Hegelund <steen.hegelund@xxxxxxxxxxxxx> > + > +description: | > + The Sparx5 SERDES interfaces share the same basic functionality, but > + support different operating modes and line rates. > + > + The following list lists the SERDES features: > + > + * RX Adaptive Decision Feedback Equalizer (DFE) > + * Programmable continuous time linear equalizer (CTLE) > + * Rx variable gain control > + * Rx built-in fault detector (loss-of-lock/loss-of-signal) > + * Adjustable tx de-emphasis (FFE) > + * Tx output amplitude control > + * Supports rx eye monitor > + * Multiple loopback modes > + * Prbs generator and checker > + * Polarity inversion control > + > + SERDES6G: > + > + The SERDES6G is a high-speed SERDES interface, which can operate at > + the following data rates: > + > + * 100 Mbps (100BASE-FX) > + * 1.25 Gbps (SGMII/1000BASE-X/1000BASE-KX) > + * 3.125 Gbps (2.5GBASE-X/2.5GBASE-KX) > + * 5.15625 Gbps (5GBASE-KR/5G-USXGMII) > + > + SERDES10G > + > + The SERDES10G is a high-speed SERDES interface, which can operate at > + the following data rates: > + > + * 100 Mbps (100BASE-FX) > + * 1.25 Gbps (SGMII/1000BASE-X/1000BASE-KX) > + * 3.125 Gbps (2.5GBASE-X/2.5GBASE-KX) > + * 5 Gbps (QSGMII/USGMII) > + * 5.15625 Gbps (5GBASE-KR/5G-USXGMII) > + * 10 Gbps (10G-USGMII) > + * 10.3125 Gbps (10GBASE-R/10GBASE-KR/USXGMII) > + > + SERDES25G > + > + The SERDES25G is a high-speed SERDES interface, which can operate at > + the following data rates: > + > + * 1.25 Gbps (SGMII/1000BASE-X/1000BASE-KX) > + * 3.125 Gbps (2.5GBASE-X/2.5GBASE-KX) > + * 5 Gbps (QSGMII/USGMII) > + * 5.15625 Gbps (5GBASE-KR/5G-USXGMII) > + * 10 Gbps (10G-USGMII) > + * 10.3125 Gbps (10GBASE-R/10GBASE-KR/USXGMII) > + * 25.78125 Gbps (25GBASE-KR/25GBASE-CR/25GBASE-SR/25GBASE-LR/25GBASE-ER) > + > +properties: > + $nodename: > + pattern: "^serdes@[0-9a-f]+$" > + > + compatible: > + const: microchip,sparx5-serdes > + > + reg: > + minItems: 1 > + > + '#phy-cells': > + const: 1 > + description: | > + - The main serdes input port > + > + clocks: > + maxItems: 1 > + > +required: > + - compatible > + - reg > + - '#phy-cells' > + - clocks > + > +additionalProperties: false > + > +examples: > + - | > + serdes: serdes@10808000 { > + compatible = "microchip,sparx5-serdes"; > + #phy-cells = <1>; > + clocks = <&sys_clk>; > + reg = <0x10808000 0x5d0000>; > + }; > + > +... > -- > 2.29.2 > -- Alexandre Belloni, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
