[U-Boot] [RFC PATCH] sf: New SF-NOR framework

Jagan Teki jagannadh.teki at gmail.com
Tue Nov 11 22:37:33 CET 2014


On 12 November 2014 02:52, Marek Vasut <marex at denx.de> wrote:
> On Tuesday, November 11, 2014 at 09:50:35 PM, Jagannadha Sutradharudu Teki
> wrote:
>> This is long lasting work that I did last few months back,
>> I'm sure it's where much need now.
>>
>> - spi driver: drivers/spi/fsl_qspi.c
>> - flash attributes in spi_slave {} and
>> - etc ...
>> making spi subsystem becomes more flash specific rather operating
>> as a generic spi bus. So SF-NOR divides normal spi flash operations
>> through generic SPI API's(sf_spi.c) and more spi flash(sf) specific
>> operations through SF NOR API's.
>>
>> So the controllers those are operating more on flash needs to
>> write a driver on drivers/mtd/spi/ example fsl_qspi.c
>>
>> I have not tested more accuratly as of now, will come back again
>> with new feature additions/removal, zynq_qspi additions and more...
>>
>> Note: dm-spi ops can gets effected with this new framework
>> { .ops            = &spi_flash_std_ops, } and will fix that in next
>> version patches.
>>
>> Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki at gmail.com>
>
> I have but a general question -- why did you not just import the spi-nor
> framework from Linux ?

Well, importing spi-nor from Linux is may not be a good idea as we
have a working stuff
at our end along with different dependencies and I'm sure this will
becomes similar way as
spi-nor at some point of time.

thanks!
-- 
Jagan.


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