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diff --git a/dts/Bindings/net/mdio-mux-mmioreg.txt b/dts/Bindings/net/mdio-mux-mmioreg.txt
deleted file mode 100644
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--- a/dts/Bindings/net/mdio-mux-mmioreg.txt
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@@ -1,75 +0,0 @@
-Properties for an MDIO bus multiplexer controlled by a memory-mapped device
-
-This is a special case of a MDIO bus multiplexer.  A memory-mapped device,
-like an FPGA, is used to control which child bus is connected.  The mdio-mux
-node must be a child of the memory-mapped device.  The driver currently only
-supports devices with 8, 16 or 32-bit registers.
-
-Required properties in addition to the generic multiplexer properties:
-
-- compatible : string, must contain "mdio-mux-mmioreg"
-
-- reg : integer, contains the offset of the register that controls the bus
-	multiplexer.  The size field in the 'reg' property is the size of
-	register, and must therefore be 1, 2, or 4.
-
-- mux-mask : integer, contains an eight-bit mask that specifies which
-	bits in the register control the actual bus multiplexer.  The
-	'reg' property of each child mdio-mux node must be constrained by
-	this mask.
-
-Example:
-
-The FPGA node defines a memory-mapped FPGA with a register space of 0x30 bytes.
-For the "EMI2" MDIO bus, register 9 (BRDCFG1) controls the mux on that bus.
-A bitmask of 0x6 means that bits 1 and 2 (bit 0 is lsb) are the bits on
-BRDCFG1 that control the actual mux.
-
-	/* The FPGA node */
-	fpga: board-control@3,0 {
-		#address-cells = <1>;
-		#size-cells = <1>;
-		compatible = "fsl,p5020ds-fpga", "fsl,fpga-ngpixis";
-		reg = <3 0 0x30>;
-		ranges = <0 3 0 0x30>;
-
-		mdio-mux-emi2 {
-			compatible = "mdio-mux-mmioreg", "mdio-mux";
-			mdio-parent-bus = <&xmdio0>;
-			#address-cells = <1>;
-			#size-cells = <0>;
-			reg = <9 1>; // BRDCFG1
-			mux-mask = <0x6>; // EMI2
-
-			emi2_slot1: mdio@0 {	// Slot 1 XAUI (FM2)
-				reg = <0>;
-				#address-cells = <1>;
-				#size-cells = <0>;
-
-				phy_xgmii_slot1: ethernet-phy@0 {
-					compatible = "ethernet-phy-ieee802.3-c45";
-					reg = <4>;
-				};
-			};
-
-			emi2_slot2: mdio@2 {	// Slot 2 XAUI (FM1)
-				reg = <2>;
-				#address-cells = <1>;
-				#size-cells = <0>;
-
-				phy_xgmii_slot2: ethernet-phy@4 {
-					compatible = "ethernet-phy-ieee802.3-c45";
-					reg = <0>;
-				};
-			};
-		};
-	};
-
-	/* The parent MDIO bus. */
-	xmdio0: mdio@f1000 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		compatible = "fsl,fman-xmdio";
-		reg = <0xf1000 0x1000>;
-		interrupts = <100 1 0 0>;
-	};