Altera FPGA To SDRAM Bridge Driver Required properties: - compatible : Should contain "altr,socfpga-fpga2sdram-bridge" See Documentation/devicetree/bindings/fpga/fpga-bridge.txt for generic bindings. Example: fpga_bridge3: fpga-bridge@ffc25080 { compatible = "altr,socfpga-fpga2sdram-bridge"; reg = <0xffc25080 0x4>; bridge-enable = <0>; };