[PATCH] arm: dts: exynos5: Remove multi core timer

Doug Anderson dianders at chromium.org
Mon Jun 2 16:22:40 PDT 2014


Kukjin,

On Wed, May 28, 2014 at 10:38 AM, Doug Anderson <dianders at chromium.org> wrote:
> Kukjin,
>
> On Wed, May 21, 2014 at 11:34 AM, Chirantan Ekbote
> <chirantan at chromium.org> wrote:
>> On Wed, May 21, 2014 at 9:20 AM, Tomasz Figa <t.figa at samsung.com> wrote:
>>> On 21.05.2014 15:24, Kukjin Kim wrote:
>>>
>>>> BTW, since
>>>> exynos5260, exynos5420 and exynos5800 doesn't support arch timer, we
>>>> have been using MCT on exynos5 SoCs.
>>>
>>> Hmm, I thought arch timer was a core feature of ARM Cortex A15 (and A7)
>>> cores. Also you mention Exynos5420, while Chirantan's patch removing MCT
>>> node from exynos5420.dtsi, would suggest that it worked for him fine. (I
>>> assume it was tested.)
>>>
>>
>> I was able to boot both 5420 and 5800 with just the arch timers on our
>> 3.8 based franken-kernel.  The upstream kernel doesn't boot on those
>> systems with or without the mct so I wasn't able to test there.
>> Although looking at the upstream device tree now I see that there is
>> no entry for the arch timer in exynos5420.dtsi.  Maybe it should be
>> added in?
>
> A gentle reminder to respond here about the status of MCT on 5420 and 5800.

Another reminder to respond about the status of arch timers on 5420
and 5800 (sorry, meant arch timers here--we know MCT works).

-Doug



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