Re: Handling multiple NAND chips

Thomas Gleixner
2003-07-26T16:23:50Z

On Saturday 26 July 2003 17:08, David Woodhouse wrote:
> On Sat, 2003-07-26 at 07:39, Thomas Gleixner wrote:
> > You can do this, but the question is, if it is really an advantage.
>
> Dunno. In general, interrupt-driven operation is an advantage over
> polling -- it lets us get on with something else while we're waiting for
> the flash, and come straight back to the flash driver when it's done.
> Given the latencies involved on NAND, though, it might not really be
> worth the effort -- but I'd like to investigate.

For write it has really no advantage. All chips I have tested so far work near
the min. timings.

For erase it could be useful, as it can last a little bit longer. But I know
for sure, that the current yield and some polling code has better performance
than most ide drives.

--
Thomas
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