linux-kernel - Re: [PATCH v7] clocksource:arm_global_timer: Add ARM global timer support.

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Message-ID: <51CAEB87.2070209@linaro.org>
Date:	Wed, 26 Jun 2013 15:24:23 +0200
From:	Daniel Lezcano <daniel.lezcano@...aro.org>
To:	Srinivas KANDAGATLA <srinivas.kandagatla@...com>
CC:	John Stultz <john.stultz@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Rob Landley <rob@...dley.net>,
	devicetree-discuss@...ts.ozlabs.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Linus Walleij <linus.walleij@...aro.org>,
	Stuart Menefy <stuart.menefy@...com>,
	Arnd Bergmann <arnd@...db.de>,
	Rob Herring <robherring2@...il.com>,
	Will Deacon <will.deacon@....com>
Subject: Re: [PATCH v7] clocksource:arm_global_timer: Add ARM global timer
 support.

On 06/26/2013 01:48 PM, Srinivas KANDAGATLA wrote:
> From: Stuart Menefy <stuart.menefy@...com>
> 
> 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@...com>
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...com>
> CC: Arnd Bergmann <arnd@...db.de>
> CC: Rob Herring <robherring2@...il.com>
> CC: Linus Walleij <linus.walleij@...aro.org>
> CC: Will Deacon <will.deacon@....com>
> CC: Thomas Gleixner <tglx@...utronix.de>
> ---
> 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

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