Messages in this thread Patch in this message | | | From | Harini Katakam <> | Subject | [PATCH v2 2/2] devicetree: Add devicetree bindings documentation for Cadence SPI | Date | Thu, 3 Apr 2014 16:40:31 +0530 |
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Add spi-cadence bindings documentation.
Signed-off-by: Harini Katakam <harinik@xilinx.com> ---
v2 changes: - Separate patch for bindings. - Add xilinx compatible string; Make compatible string first in the node. - Use property name num-cs. Make this property optional.
--- .../devicetree/bindings/spi/spi-cadence.txt | 27 ++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/spi-cadence.txt
diff --git a/Documentation/devicetree/bindings/spi/spi-cadence.txt b/Documentation/devicetree/bindings/spi/spi-cadence.txt new file mode 100644 index 0000000..ccb7599 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/spi-cadence.txt @@ -0,0 +1,27 @@ +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. + +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 = /bits/ 16 <4>; + reg = <0xe0007000 0x1000>; + } ; -- 1.7.9.5
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