Re: Handling multiple NAND chips

[Thomas Gleixner <tglx@linutronix.de>]

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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