[U-Boot] [PATCH RFC 0/2] dcache on ARM

Nick Thompson nick.thompson at ge.com
Tue Jan 26 18:13:12 CET 2010


On 26/01/10 16:16, Alessandro Rubini wrote:
> These patches enable the dcache for ARM9.  It's mainly an RFC, as some
> details are still to be sorted out, but they work fine (and the speed
> increase is noticeable for kernel boots and cp.b -- didn't make more
> tests.

I'm all for speed increases :-)

On TI DA830, the 1.0 & 1.1 revision of the silicon have a data caching
bug. You can use data caching, but only in write thru' mode. This is
fixed in the very latest 2.0 silicon. Even still it is better than
no caching as proved in Linux.

Is it simple for you to enable different levels of caching by config?

Nick.


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