Re: [spi-devel-general] Re: [PATCH/RFC] SPI: add DMAUNSAFE analogto David Brownell's core

[dmitry pervushin]

On Wed, 2005-12-14 at 20:53 +0300, Vitaly Wool wrote:
> Greg KH wrote:
> 
> >What is the speed of your SPI bus?
> >
> >And what are your preformance requirements?
> >  
> >
> The maximum frequency for the SPI bus is 26 MHz, WLAN driver is to work 
> at true 10 Mbit/sec.
My two cents: the faster is better; SPI bus itself can work on 52MHz,
and AFAIK WLAN developers limit the speed due to their firmware
reqiorements.  
> 
> Vitaly
> 
> P. S. I'm speaking not about this particular case during most part of 
> this conversation. Sound cards behind the SPI bus will suffer a lot more 
> since it's their path to use wXrY functions (lotsa small transfers) 
> rather than WLAN's.
> 
> 
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