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From: "Premi, Sanjeev" <premi@ti.com>
Date: Tue, 17 Jan 2012 12:24:26 +0000
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Subject: RE: [PATCH] omap3 towards thumb2 support
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: "barebox@lists.infradead.org" <barebox@lists.infradead.org>

> -----Original Message-----
> From: Sascha Hauer [mailto:s.hauer@pengutronix.de] 
> Sent: Tuesday, January 17, 2012 5:43 PM
> To: Premi, Sanjeev
> Cc: barebox@lists.infradead.org
> Subject: Re: [PATCH] omap3 towards thumb2 support
> 
> On Tue, Jan 17, 2012 at 11:14:31AM +0000, Premi, Sanjeev wrote:

[snip]

> > > 
> > > I attached my binary MLO file. Could you check if it 
> works for you? I
> > > just checked this binary and it comes up with:
> > > 
> > > [sp] I will try tomorrow morning.
> > 
> > Sascha,
> >   Your MLO boots fine. But I couldn't make repeat success on either
> >   beagle or the omap3evem on my side.
> > 
> >   Each time there is an exception on entry of setup_auxcr() on both
> >   boards. See attached image.
> > 
> >   I noticed that the size of the generated MLO for beagle 
> were different
> >   for us - 35224(yours) vs. 35572(mine).
> > 
> >   I am building with CodeSourcery 2011.03-41.
> 
> Ok, got it. Please replace the setup_auxcr patch with the 
> following one
> (I also updated the work/omap3 branch). The problem was the missing
> ENDPROC(setup_auxcr) directive which tells the assembler that
> setup_auxcr is a function. With this the function is correctly called
> with 'blx' instead of 'bl'. 'blx' is needed because setup_auxcr is
> compiled in arm mode instead of thumb2 mode. Somehow my toolchain
> got that right without ENDPROC but the codesourcery toolchain didn't.
> With this patch the binary also works with the codesourcery toolchain.
> 

I replaced the contents of auxcr.S and I am able to boot fine on the
OMAP3EVM.

BTW, I noticed that this file has no license header. Is this okay?

~sanjeev

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