Re: [PATCH v7] clocksource:arm_global_timer: Add ARM global timersupport.

From: Daniel Lezcano
Date: Wed Jun 26 2013 - 09:24:18 EST


On 06/26/2013 01:48 PM, Srinivas KANDAGATLA wrote:
> From: Stuart Menefy <stuart.menefy@xxxxxx>
>
> This is a simple driver for the global timer module found in the Cortex
> A9-MP cores from revision r1p0 onwards. This should be able to perform
> the functions of the system timer and the local timer in an SMP system.
>
> The global timer has the following features:
> The global timer is a 64-bit incrementing counter with an
> auto-incrementing feature. It continues incrementing after sending
> interrupts. The global timer is memory mapped in the private memory
> region.
> The global timer is accessible to all Cortex-A9 processors in the
> cluster. Each Cortex-A9 processor has a private 64-bit comparator that
> is used to assert a private interrupt when the global timer has reached
> the comparator value. All the Cortex-A9 processors in a design use the
> banked ID, ID27, for this interrupt. ID27 is sent to the Interrupt
> Controller as a Private Peripheral Interrupt. The global timer is
> clocked by PERIPHCLK.
>
> Signed-off-by: Stuart Menefy <stuart.menefy@xxxxxx>
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxx>
> CC: Arnd Bergmann <arnd@xxxxxxxx>
> CC: Rob Herring <robherring2@xxxxxxxxx>
> CC: Linus Walleij <linus.walleij@xxxxxxxxxx>
> CC: Will Deacon <will.deacon@xxxxxxx>
> CC: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> ---
> Thankyou for reveiwing the v6 patch.
> This patch is split out of the orignal 10 patches submitted for Stixxxx SOC
> support to arm-kernel mailing list. This patch has undergone few cycles of
> reviews in arm-kernel mailing list.
>
> This patch is generated on top of timers/core branch.
>
> Arnd already picked up SOC support patches [4-10] and merged them via arm-soc
> tree for 3.11.
> And most of the patches are in next branches.
>
> If its not too late can this patch be considered for 3.11 via clocksource tree?
> This patch has no build dependencies.

I took it in my tree but it is too late for a 3.11, sorry.

Thanks
-- Daniel

--
<http://www.linaro.org/> Linaro.org â Open source software for ARM SoCs

Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/