linux/Documentation/devicetree/bindings/ata/atmel-at91_cf.txt
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   1Atmel AT91RM9200 CompactFlash
   2
   3Required properties:
   4- compatible : "atmel,at91rm9200-cf".
   5- reg : should specify localbus address and size used.
   6- gpios : specifies the gpio pins to control the CF device. Detect
   7  and reset gpio's are mandatory while irq and vcc gpio's are
   8  optional and may be set to 0 if not present.
   9
  10Example:
  11compact-flash@50000000 {
  12        compatible = "atmel,at91rm9200-cf";
  13        reg = <0x50000000 0x30000000>;
  14        gpios = <&pioC 13 0     /* irq */
  15                 &pioC 15 0     /* detect */
  16                 0              /* vcc */
  17                 &pioC  5 0     /* reset */
  18                >;
  19};
  20