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[mirror_ubuntu-artful-kernel.git] / Documentation / devicetree / bindings / spi / mxs-spi.txt
1 * Freescale MX233/MX28 SSP/SPI
2
3 Required 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
12 Optional properties:
13 - clock-frequency : Input clock frequency to the SPI block in Hz.
14 Default is 160000000 Hz.
15
16 Example:
17
18 ssp0: 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 };