Documentation/devicetree/bindings/spi/spi-rockchip.txt

   1 * Rockchip SPI Controller
   2
   3 The Rockchip SPI controller is used to interface with various devices such as flash
   4 and display controllers using the SPI communication interface.
   5
   6 Required Properties:
   7
   8 - compatible: should be one of the following.
   9     "rockchip,rk3066-spi" for rk3066.
  10     "rockchip,rk3188-spi", "rockchip,rk3066-spi" for rk3188.
  11     "rockchip,rk3288-spi", "rockchip,rk3066-spi" for rk3288.
  12 - reg: physical base address of the controller and length of memory mapped
  13        region.
  14 - interrupts: The interrupt number to the cpu. The interrupt specifier format
  15               depends on the interrupt controller.
  16 - clocks: Must contain an entry for each entry in clock-names.
  17 - clock-names: Shall be "spiclk" for the transfer-clock, and "apb_pclk" for
  18                            the peripheral clock.
  19 - #address-cells: should be 1.
  20 - #size-cells: should be 0.
  21
  22 Optional Properties:
  23
  24 - dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
  25                 Documentation/devicetree/bindings/dma/dma.txt
  26 - dma-names: DMA request names should include "tx" and "rx" if present.
  27
  28
  29 Example:
  30
  31         spi0: spi@ff110000 {
  32                 compatible = "rockchip,rk3066-spi";
  33                 reg = <0xff110000 0x1000>;
  34                 dmas = <&pdma1 11>, <&pdma1 12>;
  35                 dma-names = "tx", "rx";
  36                 #address-cells = <1>;
  37                 #size-cells = <0>;
  38                 interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
  39                 clocks = <&cru SCLK_SPI0>, <&cru PCLK_SPI0>;
  40                 clock-names = "spiclk", "apb_pclk";
  41         };