axi: Add ihs_axi driver

[oweals/u-boot.git] / Documentation / devicetree / bindings / axi / gdsys,ihs_axi.txt

diff --git a/Documentation/devicetree/bindings/axi/gdsys,ihs_axi.txt b/Documentation/devicetree/bindings/axi/gdsys,ihs_axi.txt
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+gdsys AXI busses of IHS FPGA devices
+
+Certain gdsys IHS FPGAs offer a interface to their built-in AXI bus with which
+the connected devices (usually IP cores) can be controlled via software.
+
+Required properties:
+- compatible: must be "gdsys,ihs_axi"
+- reg: describes the address and length of the AXI bus's register map (within
+  the FPGA's register space)
+
+Example:
+
+fpga0_axi_video0 {
+       #address-cells = <1>;
+       #size-cells = <1>;
+       compatible = "gdsys,ihs_axi";
+       reg = <0x170 0x10>;
+
+       axi_dev_1 {
+        ...
+       };
+};