We are planning to have following boot options in our system;
1: SD Card
2: Nor Flash - 16 Bit
3: Nand Flash - 8 bit or 16 bit on CS0
Our GPMC bus is connected at the following interfaces
1: Nand Flash - 8 bit or 16 bit on CS0
2: Nor Flash - 16 bit
3: FPGA - 16 Bit
We need to understand what should be interfaced to CS0BW pin of the processor?
We are referring UDWorks kit and TI TMS320DM8168 kit as reference.
The UD works kit has only 8 bit Nand and SD card boot option.
The TI kit has 16 bit Nand and SD card boot option.
But CS0BW pin is in don't care condition in both systems. i.e. irrespective of the logic on CS0BW pin, the system gets boot up based on which nand is interfaced in the system