* CSR SiRFprimaII Serial Peripheral Interface
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Required properties:
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- compatible : Should be "sirf,prima2-spi", "sirf,prima2-usp"
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or "sirf,atlas7-usp"
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- reg : Offset and length of the register set for the device
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- interrupts : Should contain SPI interrupt
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- resets: phandle to the reset controller asserting this device in
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reset
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See ../reset/reset.txt for details.
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- dmas : Must contain an entry for each entry in clock-names.
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See ../dma/dma.txt for details.
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- dma-names : Must include the following entries:
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- rx
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- tx
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- clocks : Must contain an entry for each entry in clock-names.
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See ../clocks/clock-bindings.txt for details.
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- #address-cells: Number of cells required to define a chip select
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address on the SPI bus. Should be set to 1.
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- #size-cells: Should be zero.
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Optional properties:
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- spi-max-frequency: Specifies maximum SPI clock frequency,
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Units - Hz. Definition as per
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Documentation/devicetree/bindings/spi/spi-bus.txt
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- cs-gpios: should specify GPIOs used for chipselects.
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Example:
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spi0: spi@b00d0000 {
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compatible = "sirf,prima2-spi";
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reg = <0xb00d0000 0x10000>;
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interrupts = <15>;
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dmas = <&dmac1 9>,
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<&dmac1 4>;
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dma-names = "rx", "tx";
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#address-cells = <1>;
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#size-cells = <0>;
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clocks = <&clks 19>;
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resets = <&rstc 26>;
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};
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