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Date: Wed, 25 Feb 2009 14:06:14 +0100
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
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Subject: Re: [Adeos-main] [PATCH] ipipe i.MXL freeze's boot
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Gwenha=EBl 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.
>=20
> 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) ?
--=20
                                                 Gilles.