1 Altera SOCFPGA SDRAM Controller
4 - compatible : Should contain "altr,sdr-ctl" and "syscon".
5 syscon is required by the Altera SOCFPGA SDRAM EDAC.
6 - reg : Should contain 1 register range (address and length)
10 compatible = "altr,sdr-ctl", "syscon";
11 reg = <0xffc25000 0x1000>;