[PATCH 3/3] Documentation: dt-bindings: Add the binding info for APM X-Gene AHBC IOMMU driver.

[Suman Tripathi <stripathi-qTEPVZfXA3Y@public.gmane.org>]

This patch adds the device tree binding information for X-Gene
AHBC IOMMU driver.

Signed-off-by: Suman Tripathi <stripathi-qTEPVZfXA3Y@public.gmane.org>
---
 .../devicetree/bindings/iommu/xgene,ahbc-iommu.txt      | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iommu/xgene,ahbc-iommu.txt

diff --git a/Documentation/devicetree/bindings/iommu/xgene,ahbc-iommu.txt b/Documentation/devicetree/bindings/iommu/xgene,ahbc-iommu.txt
new file mode 100644
index 0000000..d46af54
--- /dev/null
+++ b/Documentation/devicetree/bindings/iommu/xgene,ahbc-iommu.txt
@@ -0,0 +1,17 @@
+*APM X-Gene AHBC IOMMU Architecture Implementation
+
+APM X-Gene SoC AHBC IOMMU translates the AHBC 32-bit address from
+dma master to 42-bit AXI address by using a set of AIM(AHB Inbound mapper)
+register.
+
+** AHBC IOMMU required properties:
+
+- compatible    : Should be "apm,xgene-ahbc-iommu"
+- reg           : Base address of the AHBC AXI mapper registers
+
+Example:
+
+		ahbc_iommu: ahbc_iommu@0x1f2a0080 {
+			compatible = "apm,xgene-ahbc-iommu";
+			reg = <0x0 0x1f2a0080 0x0 0x90>;
+		};
--
1.8.2.1

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