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

Doug Anderson dianders at chromium.org
Wed May 28 10:38:56 PDT 2014


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.


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