Support for AT45 External Flash possible?

[maclobdell]

FRDM-KW24D512 (new board to be Mbed Enabled soon) has a external 16-Mbit Flash connected over SPI.

Datasheet
https://www.adestotech.com/wp-content/uploads/doc8782.pdf

spiflash-driver doesn't seem to be compatible.

I see that a library was published a while back.
https://os.mbed.com/users/stjo2809/code/AT45/

My question is - can or should it be possible to add support for AT45 in this driver as an alternative interface, or should it remain a separate driver?

[geky]

Ah, the AT45 block devices fall under this driver:
https://github.com/ARMmbed/dataflash-driver

Unfortunately, dataflash chips use a different protocol than other spi flash chips, so combining the drivers doesn't have an engineering benefit.

We've considered renaming this driver to help clarify the difference, but the spi flash protocol doesn't have a standard name. To quote the MX25R's product page: "It supports the standard Serial NOR Flash memory interface" [1]. So we decided to stick with "spi flash" as a name to catch the most users looking for this driver.

On the bright side, now we have this issue that can direct users to the correct driver.