Cadence SPI controller Device Tree Bindings
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Required properties:
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- compatible : Should be "cdns,spi-r1p6" or "xlnx,zynq-spi-r1p6".
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- reg : Physical base address and size of SPI registers map.
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- interrupts : Property with a value describing the interrupt
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number.
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- interrupt-parent : Must be core interrupt controller
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- clock-names : List of input clock names - "ref_clk", "pclk"
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(See clock bindings for details).
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- clocks : Clock phandles (see clock bindings for details).
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- spi-max-frequency : Maximum SPI clocking speed of device in Hz
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Optional properties:
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- num-cs : Number of chip selects used.
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If a decoder is used, this will be the number of
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chip selects after the decoder.
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- is-decoded-cs : Flag to indicate whether decoder is used or not.
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Example:
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spi@e0007000 {
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compatible = "xlnx,zynq-spi-r1p6";
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clock-names = "ref_clk", "pclk";
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clocks = <&clkc 26>, <&clkc 35>;
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interrupt-parent = <&intc>;
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interrupts = <0 49 4>;
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num-cs = <4>;
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is-decoded-cs = <0>;
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reg = <0xe0007000 0x1000>;
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} ;
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