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spi: xilinx: Add devicetree binding for spi-xilinx

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Add a binding document for the spi/spi-xilinx

Signed-off-by: Shubhrajyoti Datta <shubhraj@xilinx.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Shubhrajyoti Datta 2016-03-09 14:17:20 +05:30 committed by Mark Brown
parent 92e963f50f
commit 82b3aea65f
1 changed files with 22 additions and 0 deletions
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Documentation/devicetree/bindings/spi/spi-xilinx.txt Normal file
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Xilinx SPI controller Device Tree Bindings
-------------------------------------------------
Required properties:
- compatible : Should be "xlnx,xps-spi-2.00.a" or "xlnx,xps-spi-2.00.b"
- reg : Physical base address and size of SPI registers map.
- interrupts : Property with a value describing the interrupt
number.
- interrupt-parent : Must be core interrupt controller
Optional properties:
- xlnx,num-ss-bits : Number of chip selects used.
Example:
axi_quad_spi@41e00000 {
compatible = "xlnx,xps-spi-2.00.a";
interrupt-parent = <&intc>;
interrupts = <0 31 1>;
reg = <0x41e00000 0x10000>;
xlnx,num-ss-bits = <0x1>;
};