From: Daniel Lezcano <daniel.lezcano@linaro.org>
To: Marek Szyprowski <m.szyprowski@samsung.com>,
linux-samsung-soc@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Cc: Chanwoo Choi <cw00.choi@samsung.com>,
Thomas Gleixner <tglx@linutronix.de>,
Krzysztof Kozlowski <krzk@kernel.org>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Subject: Re: [PATCH 0/5] Exynos SoCs: enable support for ARM Architected Timers
Date: Fri, 15 Feb 2019 17:36:54 +0100 [thread overview]
Message-ID: <ca4d33bf-aad8-5a6a-7ff5-0d6d1633045d@linaro.org> (raw)
In-Reply-To: <20190215125229.30180-1-m.szyprowski@samsung.com>
Hi Marek,
I will pick patch 1 and 2 for 5.1
Thanks
-- Daniel
On 15/02/2019 13:52, Marek Szyprowski wrote:
> Dear All,
>
> ARM Architected Timers are present in all CortexA7/A15 based Samsung
> Exynos SoCs. So far they were not enabled, because there were some issues
> related to their initialization. Samsung Exynos SoCs used custom timer
> hardware - Exynos MultiCore Timer. It turned out that enabling MCT it is
> also needed to get ARM Architected Timers working, because they both
> share some common hardware blocks (global system counter).
>
> This patchset enables support for ARM Architected Timer driver together
> with a standard Exynos MultiCore Timer driver, which is kept as a default
> timer source on ARM 32bit platforms. Support for ARM architected timers
> is essential for enabling proper KVM support on those platforms.
>
> Some of the MCT cleanup patches were earlier a part of the similar
> patchset for ARM64-based Exynos5433 SoC.
>
> Best regards
> Marek Szyprowski
> Samsung R&D Institute Poland
>
> Marek Szyprowski (5):
> clocksource: exynos_mct: Remove dead code
> clocksource: exynos_mct: Fix error path in timer resources
> initialization
> clocksource: exynos_mct: Increase priority over ARM arch timer
> ARM: dts: exynos: Add support ARM architected timers
> ARM: exynos: Enable support for ARM architected timers
>
> arch/arm/boot/dts/exynos3250.dtsi | 10 ++++++++++
> arch/arm/boot/dts/exynos5250.dtsi | 1 +
> arch/arm/boot/dts/exynos54xx.dtsi | 10 ++++++++++
> arch/arm/mach-exynos/Kconfig | 1 +
> drivers/clocksource/exynos_mct.c | 27 +++++++++++++++++----------
> include/linux/cpuhotplug.h | 2 +-
> 6 files changed, 40 insertions(+), 11 deletions(-)
>
--
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next prev parent reply other threads:[~2019-02-15 16:37 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20190215125238eucas1p2f56fe48600aedcec048bc378ed184419@eucas1p2.samsung.com>
2019-02-15 12:52 ` [PATCH 0/5] Exynos SoCs: enable support for ARM Architected Timers Marek Szyprowski
2019-02-15 12:52 ` [PATCH 1/5] clocksource: exynos_mct: Remove dead code Marek Szyprowski
2019-02-15 12:52 ` [PATCH v4 2/6] clocksource: exynos_mct: Fix error path in timer resources initialization Marek Szyprowski
2019-02-15 12:52 ` [PATCH 3/5] clocksource: exynos_mct: Increase priority over ARM arch timer Marek Szyprowski
2019-02-15 12:59 ` Krzysztof Kozlowski
2019-02-15 16:35 ` Daniel Lezcano
2019-02-18 7:41 ` Marek Szyprowski
2019-02-18 9:24 ` Daniel Lezcano
2019-02-18 9:49 ` Marek Szyprowski
2019-02-18 10:21 ` Daniel Lezcano
2019-02-18 8:53 ` Krzysztof Kozlowski
2019-02-18 8:55 ` Daniel Lezcano
2019-02-15 12:52 ` [PATCH 4/5] ARM: dts: exynos: Add support ARM architected timers Marek Szyprowski
2019-02-18 11:58 ` Chanwoo Choi
2019-02-18 12:24 ` Marek Szyprowski
2019-02-19 0:03 ` Chanwoo Choi
2019-02-15 12:52 ` [PATCH 5/5] ARM: exynos: Enable support for " Marek Szyprowski
2019-02-19 0:06 ` Chanwoo Choi
2019-02-15 16:36 ` Daniel Lezcano [this message]
[not found] <CGME20190826103201eucas1p1358f33d8fbdc8cef8ba2ebdcb1b3a51a@eucas1p1.samsung.com>
2019-08-26 10:31 ` [PATCH 0/5] Exynos SoCs: enable support for ARM Architected Timers Marek Szyprowski
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