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kernel/linux-rt-4.4.41/Documentation/devicetree/bindings/spi/nvidia,tegra20-sflash.txt 1.11 KB
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  NVIDIA Tegra20 SFLASH controller.
  
  Required properties:
  - compatible : should be "nvidia,tegra20-sflash".
  - reg: Should contain SFLASH registers location and length.
  - interrupts: Should contain SFLASH interrupts.
  - clocks : Must contain one entry, for the module clock.
    See ../clocks/clock-bindings.txt for details.
  - resets : Must contain an entry for each entry in reset-names.
    See ../reset/reset.txt for details.
  - reset-names : Must include the following entries:
    - spi
  - dmas : Must contain an entry for each entry in clock-names.
    See ../dma/dma.txt for details.
  - dma-names : Must include the following entries:
    - rx
    - tx
  
  Recommended properties:
  - spi-max-frequency: Definition as per
                       Documentation/devicetree/bindings/spi/spi-bus.txt
  
  Example:
  
  spi@7000c380 {
  	compatible = "nvidia,tegra20-sflash";
  	reg = <0x7000c380 0x80>;
  	interrupts = <0 39 0x04>;
  	spi-max-frequency = <25000000>;
  	#address-cells = <1>;
  	#size-cells = <0>;
  	clocks = <&tegra_car 43>;
  	resets = <&tegra_car 43>;
  	reset-names = "spi";
  	dmas = <&apbdma 11>, <&apbdma 11>;
  	dma-names = "rx", "tx";
  	status = "disabled";
  };