[U-Boot-Users] "stacked" memory mapped flash assisted with GPIOs

Michael Schwingen
2008-01-20T21:28:58Z

Mike Frysinger wrote:
>> I have not yet looked at the details of working with NAND flash, but the
>> requirements should be similar. Maybe the NAND subsystem can be coerced
>> to do what you need ...
>>
>
> i dont think nand would be as much of a problem as it isnt directly
> addressable. you have to go through the "nand" subsystem for reading/writing
> while with parallel nor flash, it's directly addressable.
Well, your parallel flash is *not* directly addressable, so it might be
worth to check if the NAND code can be used (by providing a NAND
low-level driver which redirects to your banked flash).

cu
Michael