Re: OMAP3 L2/outer cache enabled in kernel (after being disabled by uBoot)?

[Grazvydas Ignotas <notasas@xxxxxxxxx>]

On Tue, Jan 17, 2012 at 3:39 PM, Catalin Marinas
<catalin.marinas@xxxxxxx> wrote:
> On Tue, Jan 17, 2012 at 12:40:54PM +0000, Shilimkar, Santosh wrote:
>> Well the L2 can be configured as inner or outer, so above
>> alone won't work.
>>
>> Boot-loader disabling L2 cache ( all caches)  is still right thing
>> and that's what kernel expect.
>>
>> Since the early kernel code can't be patches for A8, may be
>> delaying L2 enabled would work.
>
> Ah, I missed the fact that the L2 is an inner cache on OMAP3+A8.

At least on my OMAP3 board it's not. There is L2 AUX control register
"L2 inner" bit that's always cleared here. I know outer cacheablility
bits in page table descriptors have effect here, we have tested
performace before..


-- 
Gražvydas
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