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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
View File

@ -4,10 +4,15 @@ Microchip Ocelot switch driver family
Felix
-----
The VSC9959 core is currently the only switch supported by the driver, and 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:
Currently the switches supported by the felix driver are:
- VSC9959 (Felix)
- 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,
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;
};
};
};
};
};