From: Tony Lindgren <tony@atomide.com>
To: "Premi, Sanjeev" <premi@ti.com>
Cc: "linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Gregoire Gentil <gregoire@gentil.com>,
"Bhandiwad, Hrishikesh" <hrishikesh.b@ti.com>,
Jason Lam <lzg@ema-tech.com>, Thomas Weber <weber@corscience.de>
Subject: Re: [PATCHv2] omap3: beagle: Use GPTIMER1 for clockevents
Date: Mon, 27 Jun 2011 11:00:27 -0700 [thread overview]
Message-ID: <20110627180027.GR23145@atomide.com> (raw)
In-Reply-To: <B85A65D85D7EB246BE421B3FB0FBB593024D793464@dbde02.ent.ti.com>
* Premi, Sanjeev <premi@ti.com> [110627 06:24]:
>
> [sp] While I take my time understanding things on devel-timer;
> I had a quick question - at risk of being flamed.
>
> Adding a new machine ID would trickle to u-boot and same
> uImage (default) may not work across board revisions.
Yes that's a hassle :( Until we have device tree, maybe see if
u-boot passes ATAG_REVISION that's available as system_rev in
kernel?
> How does this scheme look like:
> - GPTIMER1 is used as default - as it works for most boards.
> - GPTIMER12 is used based on a static config option OR a
> board specific bootarg
>
> I know both these options aren't general practice. Still
> wanted to know your views in the current context.
Let's not do a Kconfig option, but a cmdline option should work
if done in a generic way. If you decide to go that way, then
please add that to timer.c against devel-timer branch.
Regards,
Tony
WARNING: multiple messages have this Message-ID (diff)
From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCHv2] omap3: beagle: Use GPTIMER1 for clockevents
Date: Mon, 27 Jun 2011 11:00:27 -0700 [thread overview]
Message-ID: <20110627180027.GR23145@atomide.com> (raw)
In-Reply-To: <B85A65D85D7EB246BE421B3FB0FBB593024D793464@dbde02.ent.ti.com>
* Premi, Sanjeev <premi@ti.com> [110627 06:24]:
>
> [sp] While I take my time understanding things on devel-timer;
> I had a quick question - at risk of being flamed.
>
> Adding a new machine ID would trickle to u-boot and same
> uImage (default) may not work across board revisions.
Yes that's a hassle :( Until we have device tree, maybe see if
u-boot passes ATAG_REVISION that's available as system_rev in
kernel?
> How does this scheme look like:
> - GPTIMER1 is used as default - as it works for most boards.
> - GPTIMER12 is used based on a static config option OR a
> board specific bootarg
>
> I know both these options aren't general practice. Still
> wanted to know your views in the current context.
Let's not do a Kconfig option, but a cmdline option should work
if done in a generic way. If you decide to go that way, then
please add that to timer.c against devel-timer branch.
Regards,
Tony
next prev parent reply other threads:[~2011-06-27 18:00 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-27 10:36 [PATCHv2] omap3: beagle: Use GPTIMER1 for clockevents Sanjeev Premi
2011-06-27 10:36 ` Sanjeev Premi
2011-06-27 11:15 ` Tony Lindgren
2011-06-27 11:15 ` Tony Lindgren
2011-06-27 12:12 ` Premi, Sanjeev
2011-06-27 12:12 ` Premi, Sanjeev
2011-06-27 12:31 ` Tony Lindgren
2011-06-27 12:31 ` Tony Lindgren
2011-06-27 13:28 ` Premi, Sanjeev
2011-06-27 13:28 ` Premi, Sanjeev
2011-06-27 18:00 ` Tony Lindgren [this message]
2011-06-27 18:00 ` Tony Lindgren
2011-06-27 19:04 ` Kevin Hilman
2011-06-27 19:04 ` Kevin Hilman
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