[deliverable/linux.git] / Documentation / devicetree / bindings / ata / pata-arasan.txt

* ARASAN PATA COMPACT FLASH CONTROLLER

Required properties:
- compatible: "arasan,cf-spear1340"
- reg: Address range of the CF registers
- interrupt-parent: Should be the phandle for the interrupt controller
  that services interrupts for this device
- interrupt: Should contain the CF interrupt number
- clock-frequency: Interface clock rate, in Hz, one of
       25000000
       33000000
       40000000
       50000000
       66000000
       75000000
      100000000
      125000000
      150000000
      166000000
      200000000

Optional properties:
- arasan,broken-udma: if present, UDMA mode is unusable
- arasan,broken-mwdma: if present, MWDMA mode is unusable
- arasan,broken-pio: if present, PIO mode is unusable
- dmas: one DMA channel, as described in bindings/dma/dma.txt
  required unless both UDMA and MWDMA mode are broken
- dma-names: the corresponding channel name, must be "data"

Example:

	cf@fc000000 {
		compatible = "arasan,cf-spear1340";
		reg = <0xfc000000 0x1000>;
		interrupt-parent = <&vic1>;
		interrupts = <12>;
		dmas = <&dma-controller 23>;
		dma-names = "data";
	};
Commit	Line	Data
26fdaa74 VK	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
e34d3865 AB	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"
26fdaa74 VK	29
	30	Example:
	31
	32	cf@fc000000 {
	33	compatible = "arasan,cf-spear1340";
	34	reg = <0xfc000000 0x1000>;
	35	interrupt-parent = <&vic1>;
	36	interrupts = <12>;
e34d3865 AB	37	dmas = <&dma-controller 23>;
e34d3865 AB	38	dma-names = "data";
26fdaa74	39	};