1* Freescale (Enhanced) Configurable Serial Peripheral Interface
2  (CSPI/eCSPI) for i.MX
3
4Required properties:
5- compatible :
6  - "fsl,imx1-cspi" for SPI compatible with the one integrated on i.MX1
7  - "fsl,imx21-cspi" for SPI compatible with the one integrated on i.MX21
8  - "fsl,imx27-cspi" for SPI compatible with the one integrated on i.MX27
9  - "fsl,imx31-cspi" for SPI compatible with the one integrated on i.MX31
10  - "fsl,imx35-cspi" for SPI compatible with the one integrated on i.MX35
11  - "fsl,imx51-ecspi" for SPI compatible with the one integrated on i.MX51
12- reg : Offset and length of the register set for the device
13- interrupts : Should contain CSPI/eCSPI interrupt
14- fsl,spi-num-chipselects : Contains the number of the chipselect
15- cs-gpios : Specifies the gpio pins to be used for chipselects.
16- clocks : Clock specifiers for both ipg and per clocks.
17- clock-names : Clock names should include both "ipg" and "per"
18See the clock consumer binding,
19	Documentation/devicetree/bindings/clock/clock-bindings.txt
20- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
21		Documentation/devicetree/bindings/dma/dma.txt
22- dma-names: DMA request names should include "tx" and "rx" if present.
23
24Example:
25
26ecspi@70010000 {
27	#address-cells = <1>;
28	#size-cells = <0>;
29	compatible = "fsl,imx51-ecspi";
30	reg = <0x70010000 0x4000>;
31	interrupts = <36>;
32	fsl,spi-num-chipselects = <2>;
33	cs-gpios = <&gpio3 24 0>, /* GPIO3_24 */
34		   <&gpio3 25 0>; /* GPIO3_25 */
35	dmas = <&sdma 3 7 1>, <&sdma 4 7 2>;
36	dma-names = "rx", "tx";
37};
38