dt: Move device tree documentation out of powerpc directory

The device tree is used by more than just PowerPC.  Make the documentation
directory available to all.

v2: reorganized files while moving to create arch and driver specific
    directories.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

1 files changed, 0 insertions, 53 deletions

diff --git a/Documentation/powerpc/dts-bindings/fsl/spi.txt b/Documentation/powerpc/dts-bindings/fsl/spi.txt
deleted file mode 100644
index 777abd7399d5..000000000000
--- a/Documentation/powerpc/dts-bindings/fsl/spi.txt
+++ /dev/null
@@ -1,53 +0,0 @@
-* SPI (Serial Peripheral Interface)
-
-Required properties:
-- cell-index : QE SPI subblock index.
-		0: QE subblock SPI1
-		1: QE subblock SPI2
-- compatible : should be "fsl,spi".
-- mode : the SPI operation mode, it can be "cpu" or "cpu-qe".
-- reg : Offset and length of the register set for the device
-- interrupts : <a b> where a is the interrupt number and b is a
-  field that represents an encoding of the sense and level
-  information for the interrupt.  This should be encoded based on
-  the information in section 2) depending on the type of interrupt
-  controller you have.
-- interrupt-parent : the phandle for the interrupt controller that
-  services interrupts for this device.
-
-Optional properties:
-- gpios : specifies the gpio pins to be used for chipselects.
-  The gpios will be referred to as reg = <index> in the SPI child nodes.
-  If unspecified, a single SPI device without a chip select can be used.
-
-Example:
-	spi@4c0 {
-		cell-index = <0>;
-		compatible = "fsl,spi";
-		reg = <4c0 40>;
-		interrupts = <82 0>;
-		interrupt-parent = <700>;
-		mode = "cpu";
-		gpios = <&gpio 18 1	// device reg=<0>
-			 &gpio 19 1>;	// device reg=<1>
-	};
-
-
-* eSPI (Enhanced Serial Peripheral Interface)
-
-Required properties:
-- compatible : should be "fsl,mpc8536-espi".
-- reg : Offset and length of the register set for the device.
-- interrupts : should contain eSPI interrupt, the device has one interrupt.
-- fsl,espi-num-chipselects : the number of the chipselect signals.
-
-Example:
-	spi@110000 {
-		#address-cells = <1>;
-		#size-cells = <0>;
-		compatible = "fsl,mpc8536-espi";
-		reg = <0x110000 0x1000>;
-		interrupts = <53 0x2>;
-		interrupt-parent = <&mpic>;
-		fsl,espi-num-chipselects = <4>;
-	};