Messages in this thread | | | From | Gregory CLEMENT <> | Subject | [PATCH 0/6] arm: mvebu: add support for local timer for Armada 370/XP | Date | Mon, 21 Jan 2013 18:53:56 +0100 |
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Hello,
The Armada XP SoCs comes with private timers. This allows us to use local timers through CONFIG_LOCAL_TIMERS and as stated in the kconfig help, it prevents a "thundering herd" at every timer tick.
Armada 370 also have these private timers, and even if it comes only with a single CPU, the feature is also enabled for this SoC to keep the code generic.
In order to be able to use the local timer, I also had to add the support for the per-CPU interrupts.
As this patch set need to modify several sub-systems, I'd like that Jason take the whole series with the acked-by of each maintainer.
Jason I also try to create the patch to fit the order you expect drivers, then boards and finally dt.
The 1st patch which add support for local interrupt should go directly to the driver branch of Jason.
The 2nd patch which adds local timer support for Armada 370/XP should received a acked-by John Stultz or Thomas Gleixner before going to the driver branch of Jason.
For the 3rd patch, which just allow to not select TWD by default when local timers are selected for Armada 370/XP, it would be nice if Russell could give his acked-by. I think this patch should go to the board branch of Jason, but I am not sure.
The 4th patch is an update to the mvebu_defconfig and should go to the board branch of Jason.
The 5th and 6th patches are about the DT bindings. An acked-by or at least a reviewed-by from Rob Herring or Grant Likely would be nice before going ending to the dt branch of Jason.
This patch set is based on 3.8-rc4 and is obviously 3.9 material. The git branch called local_timer is available at: https://github.com/MISL-EBU-System-SW/mainline-public.git.
Thanks,
Gregory CLEMENT (6): arm: mvebu: Add support for local interrupt clocksource: time-armada-370-xp: add local timer support arm: kconfig: don't select TWD with local timer for Armada 370/XP arm: mvebu: update defconfig with local timer support arm: mvebu: update DT to support local timers clocksource: update and move armada-370-xp-timer documentation to timer directory
.../bindings/arm/armada-370-xp-timer.txt | 12 -- .../bindings/timer/marvell,armada-370-xp-timer.txt | 15 ++ arch/arm/Kconfig | 2 +- arch/arm/boot/dts/armada-370-xp.dtsi | 5 +- arch/arm/configs/mvebu_defconfig | 1 - arch/arm/mach-mvebu/irq-armada-370-xp.c | 18 ++- drivers/clocksource/time-armada-370-xp.c | 150 +++++++++++++++----- 7 files changed, 144 insertions(+), 59 deletions(-) delete mode 100644 Documentation/devicetree/bindings/arm/armada-370-xp-timer.txt create mode 100644 Documentation/devicetree/bindings/timer/marvell,armada-370-xp-timer.txt
-- 1.7.9.5
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