[PATCH] Use Normal uncached memory rather than Strongly Ordered on ARMv6+

[David Brown]

On Fri, Oct 23, 2009 at 09:54:21AM -0700, Catalin Marinas wrote:

> But if we have arch_is_coherent() enabled (possibly with hardware
> support like ARM's ACP), we need the drivers to have barriers anyway
> since we would use normal cached memory (and ordering isn't guaranteed).
> Of course, one has to go through the drivers used with a platform and
> check them but we already have a precedent.

Our Scorpion target definitely needs barriers in the drivers.
There aren't any devices available externally, yet, but we can
test things internally.

David