From: santosh.shilimkar@ti•com (Santosh Shilimkar)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH-V3 0/3] ARM: OMAP: Make OMAP clocksource source selection runtime
Date: Mon, 16 Apr 2012 14:10:03 +0530 [thread overview]
Message-ID: <4F8BDAE3.60708@ti.com> (raw)
In-Reply-To: <1334309947-25214-1-git-send-email-hvaibhav@ti.com>
Vaibhav,
On Friday 13 April 2012 03:09 PM, Vaibhav Hiremath wrote:
> Current OMAP code supports couple of clocksource options based
> on compilation flag (CONFIG_OMAP_32K_TIMER). The 32KHz sync-timer
> and a gptimer which can run on 32KHz or system clock (e.g 38.4 MHz)
>
> This patch series cleans up the existing 32k-sync timer implementation
> without any major code changes, uses kernel parameter to override
> the default clocksource of "counter_32k", also in order to support
> some OMAP based derivative SoCs like AM33XX which doesn't have
> 32K sync-timer hardware IP, adds hwmod lookup for omap2+
> devices, and if lookup fails then fall back to gp-timer.
>
> if(use_gptimer_clksrc == true)
> gptimer clocksource init;
> else if (counter_32 init == false)
> /* Fallback to gptimer */
> gptimer clocksource init(;
>
>
> With this, we should be able to support multi-omap boot
> including devices with/without 32k-sync timer.
>
> This patch-series has been boot tested on AM37xEVM platform, it
> would be helpful if somebody help me to validate it on OMAP1/2
> platforms.
>
> History:
> ========
> Changes from V2:
> http://lists.infradead.org/pipermail/linux-arm-kernel/2012-March/092037.html
> - Added early_param support to read clocksource selection
> from user through kernel parameter ("clocksource=")
> - Converted to ocp_if changes from Paul
>
> Changes from V1:
> http://lists.infradead.org/pipermail/linux-arm-kernel/2012-January/081037.html
> - Based on Tony's comment, added pbase & size argument to
> omap_init_clocksource_32k(), to avoid cpu_is_xxx() check.
> - Added commit description based on discussion on list
> (Thanks to Santosh here)
> - Reorder patch sequence
>
>
> Vaibhav Hiremath (3):
> ARM: OMAP2/3: Add idle_st bits for ST_32KSYNC timer to prcm-common
> header
> ARM: OMAP2/3: hwmod data: Add 32k-sync timer data to hwmod database
> ARM: OMAP: Make OMAP clocksource source selection using kernel param
>
This versions of series seems to fine with me.
Feel free to add,
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti•com>
Regards
Santosh
prev parent reply other threads:[~2012-04-16 8:40 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-13 9:39 [PATCH-V3 0/3] ARM: OMAP: Make OMAP clocksource source selection runtime Vaibhav Hiremath
2012-04-13 9:39 ` [PATCH-V3 1/3] ARM: OMAP2/3: Add idle_st bits for ST_32KSYNC timer to prcm-common header Vaibhav Hiremath
2012-04-13 9:39 ` [PATCH-V3 2/3] ARM: OMAP2/3: hwmod data: Add 32k-sync timer data to hwmod database Vaibhav Hiremath
2012-04-13 9:39 ` [PATCH-V3 3/3] ARM: OMAP: Make OMAP clocksource source selection using kernel param Vaibhav Hiremath
2012-04-20 0:34 ` Kevin Hilman
2012-04-23 17:35 ` Hiremath, Vaibhav
2012-04-24 0:32 ` Kevin Hilman
2012-04-16 8:40 ` Santosh Shilimkar [this message]
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