[U-Boot] QSPI driver for Zynq and ZynqMP

Hi Jagan,

We would like to upstream quad and dual modes(parallel and stacked) support for qspi drivers of Zynq and ZynqMP. Can we send patches based on existing framework(drivers/spi , this is what we are using on Xilinx tree) or you want us to use any other? I know we had discussion sometime back on this and we completed upstreaming driver without dual modes support as a first step. Please let me know on how to proceed further on adding quad and dual modes support. Any inputs are welcome.

Thanks, Siva