On Friday 25 January 2008, J. William Campbell wrote:
Mike Frysinger wrote:
On Friday 25 January 2008, Wolfgang Denk wrote:
Well, there is a big difference between NOR flash and your device: NOR flash is memory, but your's is a storage device attached to some bus interface (SPI here). The problem is that we don't have a good solution to interface with such devices yet.
Using the eeprom command for such devices is misleading, IMO. If you can live with the spiflash command, then this is not perfect, but I guess it will have to do for now as we don't have a better solution yet.
so we're clear, the proposed interface is: spiflash info spiflash <read|write> address offset count spiflash erase offset count
This sounds fine to me. The address is obviously a ram source/destination address. I vote for an offset in bytes and a count in bytes. If the offset is not an appropriate sector boundary, it is an error. The count can be a partial sector without problems. Having the offset and count in different units is confusing IMHO, so bytes for both.
it would be exactly the same as all other interfaces. we dont hold the users hand by calculating pages for them in other places, so we wont here either. in other words, yes. ;)
Also, Mike, I assume you will also add a module similar to env_eeprom.c to support environment in spiflash?
yes -mike