doc: add bindings document for altera fpga manager

New bindings document for Altera fpga manager.

Signed-off-by: Alan Tull <atull@opensource.altera.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>

diff --git a/Documentation/devicetree/bindings/fpga/altera-socfpga-fpga-mgr.txt b/Documentation/devicetree/bindings/fpga/altera-socfpga-fpga-mgr.txt
new file mode 100644 (file)
index 0000000..9b027a6
--- /dev/null
+++ b/Documentation/devicetree/bindings/fpga/altera-socfpga-fpga-mgr.txt
@@ -0,0 +1,17 @@
+Altera SOCFPGA FPGA Manager
+
+Required properties:
+- compatible : should contain "altr,socfpga-fpga-mgr"
+- reg        : base address and size for memory mapped io.
+               - The first index is for FPGA manager register access.
+               - The second index is for writing FPGA configuration data.
+- interrupts : interrupt for the FPGA Manager device.
+
+Example:
+
+       hps_0_fpgamgr: fpgamgr@0xff706000 {
+               compatible = "altr,socfpga-fpga-mgr";
+               reg = <0xFF706000 0x1000
+                      0xFFB90000 0x1000>;
+               interrupts = <0 175 4>;
+       };