[PATCH 1/3] spi/qspi: Add memory mapped read support.

[Sourav Poddar]

Hi Mark,
On Thursday 10 October 2013 03:44 PM, Mark Brown wrote:
> On Thu, Oct 10, 2013 at 02:22:28PM +0530, Sourav Poddar wrote:
>
>> [Trent]: With mapping driver, I believe you are hinting at
>> drivers/mtd/maps? I had
>> a look at it and what I got is that it is used/suitable for parallel
>> flashes and not the
>> serial flashes.
> Essentially what it looks like this hardware is trying to do is adapt a
> serial flash so it looks more like a parallel flash.  It's not clear
> that this is a good idea if we are already able to understand serial
> flash though.
Do you have any idea of how to go about implementing it in a more
cleaner way?(taking care of all what the spi controller hardware needs to
do for the memory mapped mode.). I understand doing a memcpy in the caller
itself, but how to tackle the spi controller configuration at that point 
of time.
Memory mapped is  a spi controller feature rather than a flash.