dt-bindings: fpga: Add bindings for ZynqMP fpga driver

Add documentation to describe Xilinx ZynqMP fpga driver
bindings.

Signed-off-by: Nava kishore Manne <nava.manne@xilinx.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/Documentation/devicetree/bindings/fpga/xlnx,zynqmp-pcap-fpga.txt b/Documentation/devicetree/bindings/fpga/xlnx,zynqmp-pcap-fpga.txt
new file mode 100644 (file)
index 0000000..3052bf6
--- /dev/null
+++ b/Documentation/devicetree/bindings/fpga/xlnx,zynqmp-pcap-fpga.txt
@@ -0,0 +1,25 @@
+Devicetree bindings for Zynq Ultrascale MPSoC FPGA Manager.
+The ZynqMP SoC uses the PCAP (Processor configuration Port) to configure the
+Programmable Logic (PL). The configuration uses  the firmware interface.
+
+Required properties:
+- compatible: should contain "xlnx,zynqmp-pcap-fpga"
+
+Example for full FPGA configuration:
+
+       fpga-region0 {
+               compatible = "fpga-region";
+               fpga-mgr = <&zynqmp_pcap>;
+               #address-cells = <0x1>;
+               #size-cells = <0x1>;
+       };
+
+       firmware {
+               zynqmp_firmware: zynqmp-firmware {
+                       compatible = "xlnx,zynqmp-firmware";
+                       method = "smc";
+                       zynqmp_pcap: pcap {
+                               compatible = "xlnx,zynqmp-pcap-fpga";
+                       };
+               };
+       };