From: Paul Walmsley <paul@pwsan.com>
To: Kim Kyuwon <chammoru@gmail.com>
Cc: OMAP <linux-omap@vger.kernel.org>,
Kevin Hilman <khilman@deeprootsystems.com>,
kyungmin.park@samsung.com, Tony Lindgren <tony@atomide.com>,
bhmin@samsung.com
Subject: Re: [PATCH] OMAP3 clock: Access only available clock bits
Date: Mon, 23 Mar 2009 00:40:27 -0600 (MDT) [thread overview]
Message-ID: <alpine.DEB.2.00.0903230039300.4676@utopia.booyaka.com> (raw)
In-Reply-To: <4d34a0a70903221823o40bcc347y433447664571c2c6@mail.gmail.com>
On Mon, 23 Mar 2009, Kim Kyuwon wrote:
> On Sat, Mar 21, 2009 at 6:48 AM, Paul Walmsley <paul@pwsan.com> wrote:
> > On Fri, 20 Mar 2009, Kim Kyuwon wrote:
> >
> >> I found a problem on PM Branch with OMAP3430 ES3.1 Board when enabling
> >> OMAP_RESET_CLOCKS feature.
> >> In clk_disable_unsed() function, as soon as sad2d_ick is disabled,
> >> prcm interrupt is generated and its handler can't exit loop at next
> >> statement!
> >>
> >> while (prm_read_mod_reg(OCP_MOD, OMAP2_PRM_IRQSTATUS_MPU_OFFSET));
> >
> > We encountered a similar problem a few months ago. The problem is
> > probably the pad mux settings on the d2d_mstdby and d2d_swakeup pads.
> > These are usually configured by the bootloader. My recollection is that
> > they should be pulled up, but I don't recall for sure. Yes, we should
> > have a patch in the PM branch to at least detect whether these pads are
> > configured incorrectly...
>
> Thank you for letting me know the better solution. I confirmed that
> this problem can be fixed by configuring the d2d_mstdby and
> d2d_swakeup pads. (As you said, swakeup -> pulled down & mstdby ->
> pulled up.)
Great, thanks for the confirmation.
- Paul
prev parent reply other threads:[~2009-03-23 6:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-20 3:15 [PATCH] OMAP3 clock: Access only available clock bits Kim Kyuwon
2009-03-20 21:48 ` Paul Walmsley
2009-03-20 21:56 ` Paul Walmsley
2009-03-23 1:23 ` Kim Kyuwon
2009-03-23 6:40 ` Paul Walmsley [this message]
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