Documentation/devicetree/bindings/ata/pata-arasan.txt

   1 * ARASAN PATA COMPACT FLASH CONTROLLER
   2
   3 Required properties:
   4 - compatible: "arasan,cf-spear1340"
   5 - reg: Address range of the CF registers
   6 - interrupt-parent: Should be the phandle for the interrupt controller
   7   that services interrupts for this device
   8 - interrupt: Should contain the CF interrupt number
   9 - clock-frequency: Interface clock rate, in Hz, one of
  10        25000000
  11        33000000
  12        40000000
  13        50000000
  14        66000000
  15        75000000
  16       100000000
  17       125000000
  18       150000000
  19       166000000
  20       200000000
  21
  22 Optional properties:
  23 - arasan,broken-udma: if present, UDMA mode is unusable
  24 - arasan,broken-mwdma: if present, MWDMA mode is unusable
  25 - arasan,broken-pio: if present, PIO mode is unusable
  26 - dmas: one DMA channel, as described in bindings/dma/dma.txt
  27   required unless both UDMA and MWDMA mode are broken
  28 - dma-names: the corresponding channel name, must be "data"
  29
  30 Example:
  31
  32         cf@fc000000 {
  33                 compatible = "arasan,cf-spear1340";
  34                 reg = <0xfc000000 0x1000>;
  35                 interrupt-parent = <&vic1>;
  36                 interrupts = <12>;
  37                 dmas = <&dma-controller 23>;
  38                 dma-names = "data";
  39         };