Re: Flash Burst Mode, where goes init to?

[Nicolas Pitre <nico@xxxxxxx>]

On Wed, 2 Feb 2005, Konstantin Kletschke wrote:

> Hi!
> 
> Jared, my last answer to you went to you personally, sorry it should go
> to the list... (is there any MUA which automatically recognizes a list
> and does a list reply in that case?).
> 
> The performance is indeed a bit worse, roughly by 10% to 15%.
> I don't think there is an error in my burst mode config, I think it does
> not burst. With the scope I see Burst arbitration on the chip but every
> burst is cancelled after the first data word.
> 
> I thought something like that, that the Falsh device address' has to be
> declared to be cacheable, but how do I do that?
> 
> I looked around a bit in arch/arm/mach-imx and include/asm-arm but did
> not found a file declaring cacheable regions.
> 
> Where is that done in linuux kernel (suspecting the kernel does it,
> since he switches on caches and MMU)?

For MTD you need to provide the necessary support in your map driver.  
See the lubbock map driver for example.


Nicolas

-------------------------------------------------------------------
Subscription options: http://lists.arm.linux.org.uk/mailman/listinfo/linux-arm
FAQ/Etiquette:       http://www.arm.linux.org.uk/armlinux/mailinglists.php