From: Sascha Hauer <s.hauer@pengutronix.de>
To: Luca Ceresoli <list@lucaceresoli.net>
Cc: barebox@lists.infradead.org
Subject: Re: Regression: not booting anymore on OMAP35xx
Date: Thu, 24 Jun 2010 17:41:41 +0200 [thread overview]
Message-ID: <20100624154141.GC12115@pengutronix.de> (raw)
In-Reply-To: <L4IQU1$4731D5E42E435C795207D3BFB302BAD3@aruba.it>
On Thu, Jun 24, 2010 at 02:32:25PM +0200, Luca Ceresoli wrote:
> Sascha Hauer wrote:
> > On Tue, Jun 22, 2010 at 04:04:52PM +0200, Luca Ceresoli wrote:
> > > Sascha Hauer wrote:
> > > > Hi Luca,
> > > >
> > > > On Tue, Jun 22, 2010 at 02:26:11PM +0200, Luca Ceresoli wrote:
> > > > > Hi,
> > > > >
> > > >
> > > > Seems that I lost the call to arch_init_lowlevel. Does the following
> > > > patch help?
> > >
> > > I'm afraid it doesn't seem to.
> > > It fails with the same symptoms.
> > >
> > > Luca
> > >
> > > >
> > > >
> > > > diff --git a/arch/arm/cpu/start.c b/arch/arm/cpu/start.c
> > > > index eea7dcf..91d2ccd 100644
> > > > --- a/arch/arm/cpu/start.c
> > > > +++ b/arch/arm/cpu/start.c
> > > > @@ -50,6 +50,8 @@ void __naked __bare_init reset(void)
> > > > {
> > > > uint32_t r;
> > > >
> > > > + arch_init_lowlevel();
> > > > +
> >
> > Ok, this has to be done *after* switching the cpu to SVC32 mode.
> >
> > I tested this on my beagle board and now it works again. I pushed
> > a patch to the master repository.
>
> Sascha, thank you for the prompt response.
> Unfortunately the new version works only partially with my Beagle
> Board (rev. C4).
>
> I tested commit:
> 46976f7 OMAP: fix compilation
>
> - Test 1: the board is always powered.
> Press RESET with the USER key pressed.
> 10 tests, 10 passed.
>
> - Test 2: the board is not powered.
> Turn turn it on with the USER key pressed.
> Turn turn it off again at the end of the test.
> 10 tests, 5 passed, 5 failed.
>
> During all of the 20 tests, barebox.bin was always the same.
> I didn't recompile it.
>
> OTOH the commit before the "reimplement in C" passes also test 2.
>
> I hope this gives enough hints to solve the problem.
Ok, I'll try to reproduce this.
Sascha
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next prev parent reply other threads:[~2010-06-24 15:41 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-24 12:32 Luca Ceresoli
2010-06-24 15:41 ` Sascha Hauer [this message]
-- strict thread matches above, loose matches on Subject: below --
2010-06-22 14:04 Luca Ceresoli
2010-06-23 6:42 ` Sascha Hauer
2010-06-22 12:26 Luca Ceresoli
2010-06-22 13:11 ` Sascha Hauer
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