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authorRob Herring <rob.herring@calxeda.com>2012-08-21 12:31:06 +0200
committerMarek Szyprowski <m.szyprowski@samsung.com>2012-10-02 08:58:07 +0200
commit1dc737c44a11c66f23ebeb09796f52f4b60d59c7 (patch)
tree35d2020f28bdd4c406eaf2e6909c648ce12a66e5 /Documentation/devicetree/bindings/ata
parent48aa820f1e3824e46dde6251db98e5961abf605d (diff)
ARM: highbank: add coherent DMA setup
Some highbank DMA masters can support coherent (ACP) or non-coherent DMA. This sets up dma_map_ops for masters which are configured for coherent DMA. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Diffstat (limited to 'Documentation/devicetree/bindings/ata')
-rw-r--r--Documentation/devicetree/bindings/ata/ahci-platform.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.txt b/Documentation/devicetree/bindings/ata/ahci-platform.txt
index 8bb8a76d42e8..6c1ad01d27e8 100644
--- a/Documentation/devicetree/bindings/ata/ahci-platform.txt
+++ b/Documentation/devicetree/bindings/ata/ahci-platform.txt
@@ -8,6 +8,9 @@ Required properties:
- interrupts : <interrupt mapping for SATA IRQ>
- reg : <registers mapping>
+Optional properties:
+- dma-coherent : Present if dma operations are coherent
+
Example:
sata@ffe08000 {
compatible = "calxeda,hb-ahci";