From 1dc737c44a11c66f23ebeb09796f52f4b60d59c7 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Tue, 21 Aug 2012 12:31:06 +0200
Subject: 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>
---
 Documentation/devicetree/bindings/ata/ahci-platform.txt | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'Documentation/devicetree/bindings/ata')

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";
-- 
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