From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: adeos-main@gna.org
Subject: Re: [Adeos-main] [PATCH] ipipe i.MXL freeze's boot
Date: Wed, 25 Feb 2009 14:06:14 +0100 [thread overview]
Message-ID: <49A54246.60404@domain.hid> (raw)
In-Reply-To: <d7143fa7afb9637a602a432e52eb35b4@domain.hid>
Gwenhaël wrote:
> With i.MXL processor, kernel patched with
> adeos-2.6.27-ipipe-1.12-00.patch wait indefinitly for timer
> calibration.
> Tick event never appear. This patch modify acktimer() in
> arch/arm/mach-imx/time.c.
>
> I need to know if this modification is good (without adding
> new errors).
ipipe_mach_update_tsc should be called from imx_timer_interrupt, so,
there is no need to call it from acktimer (and in fact, avoiding the
call to update_tsc in acktimer reduces the timer interrupt latency). So,
maybe what is needed and is missing is simply to read
IMX_TSTAT(TIMER_BASE) ?
--
Gilles.
next prev parent reply other threads:[~2009-02-25 13:06 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-25 11:05 [Adeos-main] [PATCH] ipipe i.MXL freeze's boot Gwenhaël
2009-02-25 13:06 ` Gilles Chanteperdrix [this message]
2009-02-25 15:09 ` Gwenhaël
2009-02-25 15:14 ` Gilles Chanteperdrix
2009-02-26 16:33 ` Gilles Chanteperdrix
2009-02-27 21:23 ` gwenhael.goavec
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