Documentation/devicetree/bindings/spi/spi_atmel.txt

   1 Atmel SPI device
   2
   3 Required properties:
   4 - compatible : should be "atmel,at91rm9200-spi".
   5 - reg: Address and length of the register set for the device
   6 - interrupts: Should contain spi interrupt
   7 - cs-gpios: chipselects
   8 - clock-names: tuple listing input clock names.
   9         Required elements: "spi_clk"
  10 - clocks: phandles to input clocks.
  11
  12 Example:
  13
  14 spi1: spi@fffcc000 {
  15         compatible = "atmel,at91rm9200-spi";
  16         reg = <0xfffcc000 0x4000>;
  17         interrupts = <13 4 5>;
  18         #address-cells = <1>;
  19         #size-cells = <0>;
  20         clocks = <&spi1_clk>;
  21         clock-names = "spi_clk";
  22         cs-gpios = <&pioB 3 0>;
  23         status = "okay";
  24
  25         mmc-slot@0 {
  26                 compatible = "mmc-spi-slot";
  27                 reg = <0>;
  28                 gpios = <&pioC 4 0>;    /* CD */
  29                 spi-max-frequency = <25000000>;
  30         };
  31 };