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Adding a device to the device tree source?

Question asked by Dat Ho on Feb 16, 2016
Latest reply on Mar 8, 2016 by Dat Ho

A custom board based on the LS1021A-TWR is under development, and an Arria 5 GZ FPGA is attached to the ARM processor's IFC bus. According to the documentation on the Integrated Flash Controller (IFC), we can use the generic ASIC protocol on the IFC bus to interface to the FPGA. We are using Chip Select 3 as the CS for the FPGA, and we know the size of the FPGA. How do I configure the LS1021A-TWR.dts so that it would include the FPGA, and use the Generic ASIC protocol to access it? I'm not sure what needs to be placed in the compatibility field to grab the Linux driver that uses the generic ASIC protocol.