Altera SOCFPGA SDRAM ControllerRequired properties:- compatible : Should contain "altr,sdr-ctl" and "syscon". syscon is required by the Altera SOCFPGA SDRAM EDAC.- reg : Should contain 1 register range (address and length)Example: sdr: sdr@ffc25000 { compatible = "altr,sdr-ctl", "syscon"; reg = <0xffc25000 0x1000>; };