https://github.com/Xilinx/linux-xlnx/blob/master/Documentation/devicetree/bindings/misc/xlnx%2Csd-fec.txt
sd_fec_0: sd-fec@a0040000 { compatible = "xlnx,sd-fec-1.1"; reg = <0x0 0xa0040000 0x0 0x40000>; interrupt-parent = <&&gic>; interrupts = <0 89 4>; xlnx,sdfec-code = "ldpc"; xlnx,sdfec-din-words = <0>; xlnx,sdfec-din-width = <2>; xlnx,sdfec-dout-words = <0>; xlnx,sdfec-dout-width = <1>; };