[U-Boot] at91 spi bus speed

[wouter moors]

So the 10MHz is a safe value I guess.
But I was wondering most why the bus speed seems to be limited to ~12MHz. Is
that a limitation of the at91sam9g20 or more likely a problem with the board
design?



On Tue, Feb 15, 2011 at 9:08 PM, Mike Frysinger <vapier at gentoo.org> wrote:

> On Tuesday, February 15, 2011 06:56:42 wouter moors wrote:
> > I saw that in env_sf.c that the spi bus speed is set at 10 MHz and was
> > wondering if there was a specific reason for that?
>
> you mean it defaults to 10 MHz.  boards can freely pick anything they want.
> some speed needed to be arbitrarily picked, and 10 MHz should work with
> every
> spi flash out there.
> -mike
>



-- 
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