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

   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
  11 Example:
  12
  13 ecspi@70010000 {
  14         #address-cells = <1>;
  15         #size-cells = <0>;
  16         compatible = "fsl,imx51-ecspi";
  17         reg = <0x70010000 0x4000>;
  18         interrupts = <36>;
  19         fsl,spi-num-chipselects = <2>;
  20         cs-gpios = <&gpio3 24 0>, /* GPIO4_24 */
  21                    <&gpio3 25 0>; /* GPIO4_25 */
  22 };