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From: p.fedin@samsung.com (Pavel Fedin)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/2] ARM: EXYNOS: Allow to use architected timer
Date: Tue, 06 Oct 2015 11:23:58 +0300	[thread overview]
Message-ID: <cover.1444119342.git.p.fedin@samsung.com> (raw)

Exynos platform officially uses "multi-core timer" AKA MCT. However, it
also has a possibility to access the same timer using CP15 (AKA
architected timer) registers.

In order to be able to use KVM, we need CP15 timer support. In its turn,
MCT needs to be turned on before any accesses will work. This patchset
allows to specify "CP15 compatibility mode" for the MCT by inserting
armv7-timer node as a child for MCT device. In this case MCT driver will
only enable the timer, leaving the rest for architected timer driver.

Pavel Fedin (2):
  exynos_mct: Allow to use architected timer mode
  ARM: dts: Use architected timer on Exynos 5410

 arch/arm/boot/dts/exynos5410.dtsi | 11 +++++++++++
 drivers/clocksource/exynos_mct.c  | 19 +++++++++++++------
 2 files changed, 24 insertions(+), 6 deletions(-)

-- 
2.4.4

             reply	other threads:[~2015-10-06  8:23 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-06  8:23 Pavel Fedin [this message]
2015-10-06  8:23 ` [PATCH 1/2] exynos_mct: Allow to use architected timer mode Pavel Fedin
2015-10-06  8:24 ` [PATCH 2/2] ARM: dts: Use architected timer on Exynos 5410 Pavel Fedin
2015-10-06  8:33   ` Chanwoo Choi
2015-10-06  8:49     ` Pavel Fedin
2015-10-06  8:37 ` [PATCH 0/2] ARM: EXYNOS: Allow to use architected timer Arnd Bergmann
2015-10-06  8:51   ` Alexey Klimov
2015-10-06  8:56   ` Pavel Fedin
2015-10-06  9:12     ` Arnd Bergmann
2015-10-06  9:44       ` Pavel Fedin
2015-10-06 10:03         ` Arnd Bergmann
2015-10-06 10:09     ` Kukjin Kim
2015-10-06 10:16       ` Pavel Fedin
2015-10-06 10:25       ` Kukjin Kim

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