Regression: not booting anymore on OMAP35xx

[Sascha Hauer]

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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