On Tue, Jun 23, 2009 at 10:31 AM, K=E1ri
Dav=ED=F0sson[off-list ref] wrote:

Lowered my SPI clock down to 1MHz (from 50MHz (in steps of 10MHz).
At 1Mhz the driver stops starving the rest of the kernel.

What is interesting is that due to the low duty cycle of the SPI port
the transfer rate at 1MHz and 50Mhz is almost the same.

I suggest that the driver simply limits max frequency to 1Mhz.

Sounds good to me.  Thanks for the testing!

This (very limited) SPI pherperial does not handle any more anyways.

indeed.

g.


--=20
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.