[PATCH net-next 1/4] dt-bindings: net: dsa: add mt7530 binding

[<sean.wang@xxxxxxxxxxxx>]

From: Sean Wang <sean.wang@xxxxxxxxxxxx>

Add device-tree binding for Mediatek MT7530 switch.

Cc: devicetree@xxxxxxxxxxxxxxx
Signed-off-by: Sean Wang <sean.wang@xxxxxxxxxxxx>
---
 .../devicetree/bindings/net/dsa/mt7530.txt         | 96 ++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/dsa/mt7530.txt

diff --git a/Documentation/devicetree/bindings/net/dsa/mt7530.txt b/Documentation/devicetree/bindings/net/dsa/mt7530.txt
new file mode 100644
index 0000000..3c52a6a
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/dsa/mt7530.txt
@@ -0,0 +1,96 @@
+Mediatek MT7530 Ethernet switch
+================================
+
+Required properties:
+
+- compatible: Must be compatible = "mediatek,mt7530";
+- #address-cells: Must be 1
+- #size-cells: Must be 0
+- mediatek,ethsys: Phandle to the syscon node that handles the reset.
+- mediatek,ethernet: Phandle to the syscon node that Mediatek ethernet
+	driver provides that handles the TRGMII setup used by the switch.
+	See
+	Documentation/devicetree/bindings/net/mediatek-net.txt for the
+	detailed setup on mediatek ethernet.
+- mediatek,mcm: String, should be "enabled" or "disabled" to indicate that
+	the MT7530 is the part on multi-chip module as the function MT7623A
+	has or the remote standalone chip as the function MT7623N reference
+	board provides to.
+- 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 such as MT7623A or MT7623N.
+
+Optional properties:
+
+- mediatek,reset-pin: Phandle to the pinctrl node used for the reset. Which
+	must be required if the property of specified as "disabled". See
+	Documentation/devicetree/bindings/pinctrl/pinctrl-mt65xx.txt for
+	the mediatek pintcrl setting for the details.
+
+Each port children node within ports container must have the following
+mandatory properties:
+- reg			: Port address described must be 6 for CPU port
+			and from 0 to 5 for user ports.
+
+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>;
+
+			mediatek,ethsys = <&ethsys>;
+			mediatek,ethernet = <&eth>;
+			mediatek,mcm = "enabled";
+			core-supply = <&mt6323_vpa_reg>;
+			io-supply = <&mt6323_vemc3v3_reg>;
+
+			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 = <&eth>;
+					phy-mode = "trgmii";
+					fixed-link {
+						speed = <1000>;
+						full-duplex;
+					};
+				};
+			};
+		};
+	};
-- 
1.9.1

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