diff options
Diffstat (limited to 'Documentation/devicetree/bindings/ata/pata-arasan.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/ata/pata-arasan.txt | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/ata/pata-arasan.txt b/Documentation/devicetree/bindings/ata/pata-arasan.txt index 95ec7f825ed..2aff154be84 100644 --- a/Documentation/devicetree/bindings/ata/pata-arasan.txt +++ b/Documentation/devicetree/bindings/ata/pata-arasan.txt @@ -6,6 +6,26 @@ Required properties: - 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: @@ -14,4 +34,6 @@ Example: reg = <0xfc000000 0x1000>; interrupt-parent = <&vic1>; interrupts = <12>; + dmas = <&dma-controller 23>; + dma-names = "data"; }; |