Kernel-3.10.0-957.el7_mxs-spi

• Freescale MX233/MX28 SSP/SPI

Required properties:

• compatible: Should be “fsl,-spi”, where soc is “imx23” or “imx28”
• reg: Offset and length of the register set for the device
• interrupts: Should contain SSP ERROR interrupt
• dmas: DMA specifier, consisting of a phandle to DMA controller node
  and SSP DMA channel ID.
  Refer to dma.txt and fsl-mxs-dma.txt for details.
• dma-names: Must be “rx-tx”.

Optional properties:

• clock-frequency : Input clock frequency to the SPI block in Hz.

        Default is 160000000 Hz.
  

Example:

ssp0: ssp@80010000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = “fsl,imx28-spi”;
reg = <0x80010000 0x2000>;
interrupts = <96>;
dmas = <&dma_apbh 0>;
dma-names = “rx-tx”;
};