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docs: devicetree: add bindings for Seville DSA switch inside Felix driver 

There are no non-standard bindings being used. However Felix is a PCI
device and Seville is a platform device. So give an example of device
tree for this switch and document its compatible string.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladimir Oltean 2020-07-13 19:57:11 +03:00 committed by David S. Miller
parent 84705fc165
commit 77710929da
1 changed files with 101 additions and 4 deletions
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105
Documentation/devicetree/bindings/net/dsa/ocelot.txt
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@ -4,10 +4,15 @@ Microchip Ocelot switch driver family
Felix Felix
----- -----
The VSC9959 core is currently the only switch supported by the driver, and is Currently the switches supported by the felix driver are:
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 - VSC9959 (Felix)
complex node and its "reg" property conforms to the parent node bindings: - VSC9953 (Seville)
The VSC9959 switch 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:
* reg: Specifies PCIe Device Number and Function Number of the endpoint device, * reg: Specifies PCIe Device Number and Function Number of the endpoint device,
in this case for the Ethernet L2Switch it is PF5 (of device 0, bus 0). in this case for the Ethernet L2Switch it is PF5 (of device 0, bus 0).
@ -114,3 +119,95 @@ Example:
}; };
}; };
}; };
The VSC9953 switch is found inside NXP T1040. It is a platform device with the
following required properties:
- compatible:
Must be "mscc,vsc9953-switch".
Supported PHY interface types (appropriate SerDes protocol setting changes are
needed in the RCW binary):
* 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
Example:
&soc {
ethernet-switch@800000 {
#address-cells = <0x1>;
#size-cells = <0x0>;
compatible = "mscc,vsc9953-switch";
little-endian;
reg = <0x800000 0x290000>;
ports {
#address-cells = <0x1>;
#size-cells = <0x0>;
port@0 {
reg = <0x0>;
label = "swp0";
};
port@1 {
reg = <0x1>;
label = "swp1";
};
port@2 {
reg = <0x2>;
label = "swp2";
};
port@3 {
reg = <0x3>;
label = "swp3";
};
port@4 {
reg = <0x4>;
label = "swp4";
};
port@5 {
reg = <0x5>;
label = "swp5";
};
port@6 {
reg = <0x6>;
label = "swp6";
};
port@7 {
reg = <0x7>;
label = "swp7";
};
port@8 {
reg = <0x8>;
phy-mode = "internal";
ethernet = <&enet0>;
fixed-link {
speed = <2500>;
full-duplex;
};
};
port@9 {
reg = <0x9>;
phy-mode = "internal";
status = "disabled";
fixed-link {
speed = <2500>;
full-duplex;
};
};
};
};
};