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diff --git a/Documentation/powerpc/dts-bindings/spi-bus.txt b/Documentation/powerpc/dts-bindings/spi-bus.txt
deleted file mode 100644
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--- a/Documentation/powerpc/dts-bindings/spi-bus.txt
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-SPI (Serial Peripheral Interface) busses
-
-SPI busses can be described with a node for the SPI master device
-and a set of child nodes for each SPI slave on the bus.  For this
-discussion, it is assumed that the system's SPI controller is in
-SPI master mode.  This binding does not describe SPI controllers
-in slave mode.
-
-The SPI master node requires the following properties:
-- #address-cells  - number of cells required to define a chip select
-    		address on the SPI bus.
-- #size-cells     - should be zero.
-- compatible      - name of SPI bus controller following generic names
-    		recommended practice.
-No other properties are required in the SPI bus node.  It is assumed
-that a driver for an SPI bus device will understand that it is an SPI bus.
-However, the binding does not attempt to define the specific method for
-assigning chip select numbers.  Since SPI chip select configuration is
-flexible and non-standardized, it is left out of this binding with the
-assumption that board specific platform code will be used to manage
-chip selects.  Individual drivers can define additional properties to
-support describing the chip select layout.
-
-SPI slave nodes must be children of the SPI master node and can
-contain the following properties.
-- reg             - (required) chip select address of device.
-- compatible      - (required) name of SPI device following generic names
-    		recommended practice
-- spi-max-frequency - (required) Maximum SPI clocking speed of device in Hz
-- spi-cpol        - (optional) Empty property indicating device requires
-    		inverse clock polarity (CPOL) mode
-- spi-cpha        - (optional) Empty property indicating device requires
-    		shifted clock phase (CPHA) mode
-- spi-cs-high     - (optional) Empty property indicating device requires
-    		chip select active high
-
-SPI example for an MPC5200 SPI bus:
-	spi@f00 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		compatible = "fsl,mpc5200b-spi","fsl,mpc5200-spi";
-		reg = <0xf00 0x20>;
-		interrupts = <2 13 0 2 14 0>;
-		interrupt-parent = <&mpc5200_pic>;
-
-		ethernet-switch@0 {
-			compatible = "micrel,ks8995m";
-			spi-max-frequency = <1000000>;
-			reg = <0>;
-		};
-
-		codec@1 {
-			compatible = "ti,tlv320aic26";
-			spi-max-frequency = <100000>;
-			reg = <1>;
-		};
-	};