spi-fsl-dspi.txt

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    1 ARM Freescale DSPI controller
    2 
    3 Required properties:
    4 - compatible : must be one of:
    5         "fsl,vf610-dspi",
    6         "fsl,ls1021a-v1.0-dspi",
    7         "fsl,ls1012a-dspi" (optionally followed by "fsl,ls1021a-v1.0-dspi"),
    8         "fsl,ls1028a-dspi",
    9         "fsl,ls1043a-dspi" (optionally followed by "fsl,ls1021a-v1.0-dspi"),
   10         "fsl,ls1046a-dspi" (optionally followed by "fsl,ls1021a-v1.0-dspi"),
   11         "fsl,ls1088a-dspi" (optionally followed by "fsl,ls1021a-v1.0-dspi"),
   12         "fsl,ls2080a-dspi" (optionally followed by "fsl,ls2085a-dspi"),
   13         "fsl,ls2085a-dspi",
   14         "fsl,lx2160a-dspi",
   15 - reg : Offset and length of the register set for the device
   16 - interrupts : Should contain SPI controller interrupt
   17 - clocks: from common clock binding: handle to dspi clock.
   18 - clock-names: from common clock binding: Shall be "dspi".
   19 - pinctrl-0: pin control group to be used for this controller.
   20 - pinctrl-names: must contain a "default" entry.
   21 - spi-num-chipselects : the number of the chipselect signals.
   22 
   23 Optional property:
   24 - big-endian: If present the dspi device's registers are implemented
   25   in big endian mode.
   26 - bus-num : the slave chip chipselect signal number.
   27 
   28 Optional SPI slave node properties:
   29 - fsl,spi-cs-sck-delay: a delay in nanoseconds between activating chip
   30   select and the start of clock signal, at the start of a transfer.
   31 - fsl,spi-sck-cs-delay: a delay in nanoseconds between stopping the clock
   32   signal and deactivating chip select, at the end of a transfer.
   33 
   34 Example:
   35 
   36 dspi0@4002c000 {
   37         #address-cells = <1>;
   38         #size-cells = <0>;
   39         compatible = "fsl,vf610-dspi";
   40         reg = <0x4002c000 0x1000>;
   41         interrupts = <0 67 0x04>;
   42         clocks = <&clks VF610_CLK_DSPI0>;
   43         clock-names = "dspi";
   44         spi-num-chipselects = <5>;
   45         bus-num = <0>;
   46         pinctrl-names = "default";
   47         pinctrl-0 = <&pinctrl_dspi0_1>;
   48         big-endian;
   49 
   50         sflash: at26df081a@0 {
   51                 #address-cells = <1>;
   52                 #size-cells = <1>;
   53                 compatible = "atmel,at26df081a";
   54                 spi-max-frequency = <16000000>;
   55                 spi-cpol;
   56                 spi-cpha;
   57                 reg = <0>;
   58                 linux,modalias = "m25p80";
   59                 modal = "at26df081a";
   60                 fsl,spi-cs-sck-delay = <100>;
   61                 fsl,spi-sck-cs-delay = <50>;
   62         };
   63 };
   64 
   65

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/spi/spi-fsl-dspi.txt

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/spi/spi-fsl-dspi.txt