new file mode 100644
@@ -0,0 +1,31 @@
+*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
+- iommu-cells : It is single master IOMMU.
+
+Example:
+ /* IOMMU controller device node */
+ ahbc_iommu: ahbc_iommu@0x1f2a0080 {
+ compatible = "apm,xgene-ahbc-iommu";
+ #iommu-cells = <0>;
+ reg = <0x0 0x1f2a0080 0x0 0x90>;
+ };
+
+ /* Master node */
+ sdhc0: sdhc@1c000000 {
+ device_type = "sdhc";
+ compatible = "arasan,sdhci-8.9a";
+ reg = <0x0 0x1c000000 0x0 0x100>;
+ interrupts = <0x0 0x49 0x4>;
+ clock-names = "clk_xin", "clk_ahb";
+ clocks = <&sdioclk 0>, <&ahbclk 0>;
+ iommus = <&ahbc_iommu>;
+ };
+
This patch adds the device tree binding information for X-Gene AHBC IOMMU driver. Signed-off-by: Suman Tripathi <stripathi@apm.com> --- .../devicetree/bindings/iommu/xgene,ahbc-iommu.txt | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 Documentation/devicetree/bindings/iommu/xgene,ahbc-iommu.txt -- 1.8.2.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html