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authorHarini Katakam <harinik@xilinx.com>2014-04-14 09:06:54 (GMT)
committerMark Brown <broonie@linaro.org>2014-04-14 20:00:31 (GMT)
commit205d52756f4091ffcf526f9d14853b18e3ca8d6f (patch)
tree2e5686738e4f10c0aaa4884420bd6eb52c1a9177 /Documentation/devicetree/bindings/spi
parentc474b38665463d9017cd60cd3a8f8226cf8d562f (diff)
spi: Add devicetree bindings documentation for Cadence SPI
Add spi-cadence bindings documentation. Signed-off-by: Harini Katakam <harinik@xilinx.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/spi')
-rw-r--r--Documentation/devicetree/bindings/spi/spi-cadence.txt31
1 files changed, 31 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/spi/spi-cadence.txt b/Documentation/devicetree/bindings/spi/spi-cadence.txt
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+Cadence SPI controller Device Tree Bindings
+-------------------------------------------
+
+Required properties:
+- compatible : Should be "cdns,spi-r1p6" or "xlnx,zynq-spi-r1p6".
+- 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
+- clock-names : List of input clock names - "ref_clk", "pclk"
+ (See clock bindings for details).
+- clocks : Clock phandles (see clock bindings for details).
+
+Optional properties:
+- num-cs : Number of chip selects used.
+ If a decoder is used, this will be the number of
+ chip selects after the decoder.
+- is-decoded-cs : Flag to indicate whether decoder is used or not.
+
+Example:
+
+ spi@e0007000 {
+ compatible = "xlnx,zynq-spi-r1p6";
+ clock-names = "ref_clk", "pclk";
+ clocks = <&clkc 26>, <&clkc 35>;
+ interrupt-parent = <&intc>;
+ interrupts = <0 49 4>;
+ num-cs = <4>;
+ is-decoded-cs = <0>;
+ reg = <0xe0007000 0x1000>;
+ } ;

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