[U-Boot] [PATCH v6 16/21] spi: Remove dual flash options/flags

[Siva Durga Prasad Paladugu]

Hi,

> -----Original Message-----
> From: Jagan Teki [mailto:jagan at openedev.com]
> Sent: Wednesday, November 16, 2016 7:23 PM
> To: Siva Durga Prasad Paladugu <sivadur at xilinx.com>
> Cc: u-boot at lists.denx.de; Michal Simek <michal.simek at xilinx.com>
> Subject: Re: [U-Boot] [PATCH v6 16/21] spi: Remove dual flash options/flags
> 
> On Wed, Nov 16, 2016 at 12:27 PM, Siva Durga Prasad Paladugu
> <siva.durga.paladugu at xilinx.com> wrote:
> > Hi,
> >
> >> -----Original Message-----
> >> From: Jagan Teki [mailto:jagan at openedev.com]
> >> Sent: Wednesday, November 16, 2016 9:33 AM
> >> To: u-boot at lists.denx.de
> >> Cc: Jagan Teki <jagan at openedev.com>; Bin Meng
> <bmeng.cn at gmail.com>;
> >> York Sun <york.sun at nxp.com>; Vignesh R <vigneshr at ti.com>;
> Mugunthan V
> >> N <mugunthanvnm at ti.com>; Michal Simek <michal.simek at xilinx.com>;
> Siva
> >> Durga Prasad Paladugu <sivadur at xilinx.com>
> >> Subject: [PATCH v6 16/21] spi: Remove dual flash options/flags
> >>
> >> Dual flash code in spi are usually take the spi controller to work
> >> with dual connected flash devices. Usually these dual connection
> >> operation's are referred to flash controller protocol rather with spi
> >> controller protocol, these are still present in flash side for the usage of
> spi-nor controllers.
> >>
> >> So, this patch remove the dual_flash options or flags in sf which are
> >> triggered from spi controller side.
> >
> > How are you going to handle this? any followup patches on this?
> > This will break for some who are using dual flash till now. Isnt it?
> 
> Yes, but I've been mentioned many times about this as we need to re-write
> the driver on mtd side since many flash futures are dealt with spi area,
> which is bad and inconvenient to add new futures. and also there is no
> driver using this dual flash so far, SoI am going with this patch either way.
If I get it correctly, you would like to move all the spi flash related drivers to
drivers/mtd/spi ? If yes, then how do you handle a driver which supports both flash
and other devices as well.

Regards,
Siva
> 
> thanks!
> --
> Jagan Teki
> Free Software Engineer | www.openedev.com U-Boot, Linux | Upstream
> Maintainer Hyderabad, India.