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dt-bindings: net: dsa: add Mediatek MT7530 binding

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Add device-tree binding for Mediatek MT7530 switch.

Cc: devicetree@vger.kernel.org
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Sean Wang 2017-04-07 16:45:05 +08:00 committed by David S. Miller
parent bbadb9a222
commit c898693a5a
1 changed files with 92 additions and 0 deletions
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Documentation/devicetree/bindings/net/dsa/mt7530.txt Normal file
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Mediatek MT7530 Ethernet switch
================================
Required properties:
- compatible: Must be compatible = "mediatek,mt7530";
- #address-cells: Must be 1.
- #size-cells: Must be 0.
- mediatek,mcm: Boolean; if defined, indicates that either MT7530 is the part
on multi-chip module belong to MT7623A has or the remotely standalone
chip as the function MT7623N reference board provided for.
- core-supply: Phandle to the regulator node necessary for the core power.
- io-supply: Phandle to the regulator node necessary for the I/O power.
See Documentation/devicetree/bindings/regulator/mt6323-regulator.txt
for details for the regulator setup on these boards.
If the property mediatek,mcm isn't defined, following property is required
- reset-gpios: Should be a gpio specifier for a reset line.
Else, following properties are required
- resets : Phandle pointing to the system reset controller with
line index for the ethsys.
- reset-names : Should be set to "mcm".
Required properties for the child nodes within ports container:
- reg: Port address described must be 6 for CPU port and from 0 to 5 for
user ports.
- phy-mode: String, must be either "trgmii" or "rgmii" for port labeled
"cpu".
See Documentation/devicetree/bindings/dsa/dsa.txt for a list of additional
required, optional properties and how the integrated switch subnodes must
be specified.
Example:
&mdio0 {
switch@0 {
compatible = "mediatek,mt7530";
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
core-supply = <&mt6323_vpa_reg>;
io-supply = <&mt6323_vemc3v3_reg>;
reset-gpios = <&pio 33 0>;
ports {
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
port@0 {
reg = <0>;
label = "lan0";
};
port@1 {
reg = <1>;
label = "lan1";
};
port@2 {
reg = <2>;
label = "lan2";
};
port@3 {
reg = <3>;
label = "lan3";
};
port@4 {
reg = <4>;
label = "wan";
};
port@6 {
reg = <6>;
label = "cpu";
ethernet = <&gmac0>;
phy-mode = "trgmii";
fixed-link {
speed = <1000>;
full-duplex;
};
};
};
};
};