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Documentation / devicetree / bindings / spi / fsl-imx-cspi.txt




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Based on kernel version 3.19. Page generated on 2015-02-13 21:19 EST.

1	* Freescale (Enhanced) Configurable Serial Peripheral Interface
2	  (CSPI/eCSPI) for i.MX
3	
4	Required properties:
5	- compatible : Should be "fsl,<soc>-cspi" or "fsl,<soc>-ecspi"
6	- reg : Offset and length of the register set for the device
7	- interrupts : Should contain CSPI/eCSPI interrupt
8	- fsl,spi-num-chipselects : Contains the number of the chipselect
9	- cs-gpios : Specifies the gpio pins to be used for chipselects.
10	- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
11			Documentation/devicetree/bindings/dma/dma.txt
12	- dma-names: DMA request names should include "tx" and "rx" if present.
13	
14	Example:
15	
16	ecspi@70010000 {
17		#address-cells = <1>;
18		#size-cells = <0>;
19		compatible = "fsl,imx51-ecspi";
20		reg = <0x70010000 0x4000>;
21		interrupts = <36>;
22		fsl,spi-num-chipselects = <2>;
23		cs-gpios = <&gpio3 24 0>, /* GPIO3_24 */
24			   <&gpio3 25 0>; /* GPIO3_25 */
25		dmas = <&sdma 3 7 1>, <&sdma 4 7 2>;
26		dma-names = "rx", "tx";
27	};
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