[U-Boot] da850/L138 SPI flash transfer speed

[Nori, Sekhar]

Hello Delio,

On Sat, Apr 24, 2010 at 05:00:49, Delio Brignoli wrote:
> Hello Wolfgang,
>
> On 24/04/2010, at 10:29 AM, Wolfgang Denk wrote:
> > please mind the NetiQuette and restrict your line length to some 70
> > charatcers or so.  Thanks.
>
> Will do, thanks.
>
> > Everything is slow as caches are not enabled.
>
> OK, so reducing the number of reads from registers and writes to RAM
> should improve performance. To you knowledge, would enabling the
> cache for davinci da850 break anything in U-Boot?

It would break EMAC driver for sure. The driver does not
flush/invalidate the buffers under the assumption that
the data cache is kept disabled.

Thanks,
Sekhar