[PATCH 0/4] mtd: spi-nor: add a new framework for SPI NOR

Huang Shijie b32955 at freescale.com
Thu Dec 5 02:12:25 EST 2013


On Wed, Dec 04, 2013 at 10:44:05AM -0800, Brian Norris wrote:
> 
> I mostly bring this up, though, because it is an example of hardware
> that
> 
>    (a) can operate as a true SPI device (hardware (1) can handle generic
>        SPI transfers), but
>    (b) requires knowledge of the details of SPI flash in order to get
>        optimal usage out of the acceleration from (2).
> 
> In my book, point (a) and (b) hold some bearing over the question of
> "where should this SPI NOR framework live", because it is reasonable
> that a single driver for this hardware should be able to handle either
> true SPI devices or accelerated SPI-NOR flash.

We have add a @read_id hook for the spi-nor layer, you can use it to read out
more info (such as the Device Geometry Definition) for your spi-nor controller driver.

Is it okay?

thanks
Huang Shijie




More information about the linux-arm-kernel mailing list