Re: [PATCH v3 2/2] spi: cadence: add support for Cadence XSPI controller

On Fri, Sep 03, 2021 at 10:47:50AM +0000, Parshuram Raju Thombare wrote:

Oh, ok.  That is done at power on reset by the controller in 2 ways.
1. Using device discovery module, controller try to auto detect the valid protocol
    mode by trying to read SFDP signature in various modes.
2. Particular protocol mode can be selected using bootstrap signals.

I think mode_bits need to include protocol mode which is auto detected or
set using bootstrap signals. I will make that change in next version. 

Yes, that sounds better.  I guess at least in the case of autodetection
the mode can be overridden by software later, but that can always be
added later if someone actually needs the feature.