xref: /freebsd/sys/contrib/device-tree/Bindings/spi/mxs-spi.txt (revision f81cdf24ba5436367377f7c8e8f51f6df2a75ca7)
1* Freescale MX233/MX28 SSP/SPI
2
3Required properties:
4- compatible: Should be "fsl,<soc>-spi", where soc is "imx23" or "imx28"
5- reg: Offset and length of the register set for the device
6- interrupts: Should contain SSP ERROR interrupt
7- dmas: DMA specifier, consisting of a phandle to DMA controller node
8  and SSP DMA channel ID.
9  Refer to dma.txt and fsl-mxs-dma.txt for details.
10- dma-names: Must be "rx-tx".
11
12Optional properties:
13- clock-frequency : Input clock frequency to the SPI block in Hz.
14		    Default is 160000000 Hz.
15
16Example:
17
18ssp0: ssp@80010000 {
19	#address-cells = <1>;
20	#size-cells = <0>;
21	compatible = "fsl,imx28-spi";
22	reg = <0x80010000 0x2000>;
23	interrupts = <96>;
24	dmas = <&dma_apbh 0>;
25	dma-names = "rx-tx";
26};
27