[U-Boot] [PATCH RFC 0/2] dcache on ARM
Armando VISCONTI
armando.visconti at st.com
Tue Jan 26 18:21:25 CET 2010
Alessandro,
I don't see the flush_cache() call inside cmd_bootm.c.
Don't you think it is necessary before jumping to Linux?
Or am I missing something?
Rgds,
Arm
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 tested the code on at91sam9263ek and nhk8815. No makeall at this
> point, as I'm mainly interested in comments here.
>
> This is based on the cache-cp15.c infrastructure set up by
> Jean-Christophe for icache enabling.
>
> I'm sure Drasko Draskovic has better code, but since he has sent
> no a patch yet (asked in Mar 2009, and then again and again),
> here is my approach.
>
> Alessandro Rubini (2):
> flush cache for arm926
> arm cp15: setup mmu and enable dcache
>
> lib_arm/cache-cp15.c | 37 +++++++++++++++++++++++++++++++++++++
> lib_arm/cache.c | 6 ++++++
> 2 files changed, 43 insertions(+), 0 deletions(-)
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