[U-Boot] Booting on seaboard (unaligned access)

[U-Boot] Booting on seaboard (unaligned access)

[Simon Glass]

Hi Tom,

I can't boot mainline on seaboard at present without reverting this commit:

c50afc1d Revert "arm: armv7: add compile option -mno-unaligned-access
if available

Is there supposed to be another way of fixing this, or is my toolchain
broken? I may have missed something.

Regards,
Simon

[U-Boot] Booting on seaboard (unaligned access)

[Tom Warren]

I don't see that commit in u-boot-tegra. I assume it's in u-boot/master (TOT)?  I'll try a Seaboard build from u-boot/master when I get a chance.

What about other (non-Tegra) ARM boards?

> -----Original Message-----
> From: sjg at google.com [mailto:sjg at google.com] On Behalf Of Simon Glass
> Sent: Wednesday, February 06, 2013 2:06 PM
> To: U-Boot Mailing List
> Cc: Tom Warren; Albert ARIBAUD
> Subject: Booting on seaboard (unaligned access)
> 
> Hi Tom,
> 
> I can't boot mainline on seaboard at present without reverting this commit:
> 
> c50afc1d Revert "arm: armv7: add compile option -mno-unaligned-access if
> available
> 
> Is there supposed to be another way of fixing this, or is my toolchain broken?
> I may have missed something.
> 
> Regards,
> Simon
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[U-Boot] Booting on seaboard (unaligned access)

[Tom Warren]

Sorry, I do see it - I was using a mangled grep string.  I have no problem with it w/Sourcery G++ Lite 2009q3-67 4.4.1, which is what I've used forever.

> -----Original Message-----
> From: Tom Warren
> Sent: Wednesday, February 06, 2013 3:08 PM
> To: 'Simon Glass'; U-Boot Mailing List
> Cc: Albert ARIBAUD
> Subject: RE: Booting on seaboard (unaligned access)
> 
> I don't see that commit in u-boot-tegra. I assume it's in u-boot/master (TOT)?
> I'll try a Seaboard build from u-boot/master when I get a chance.
> 
> What about other (non-Tegra) ARM boards?
> 
> > -----Original Message-----
> > From: sjg at google.com [mailto:sjg at google.com] On Behalf Of Simon Glass
> > Sent: Wednesday, February 06, 2013 2:06 PM
> > To: U-Boot Mailing List
> > Cc: Tom Warren; Albert ARIBAUD
> > Subject: Booting on seaboard (unaligned access)
> >
> > Hi Tom,
> >
> > I can't boot mainline on seaboard at present without reverting this commit:
> >
> > c50afc1d Revert "arm: armv7: add compile option -mno-unaligned-access
> > if available
> >
> > Is there supposed to be another way of fixing this, or is my toolchain
> broken?
> > I may have missed something.
> >
> > Regards,
> > Simon
-----------------------------------------------------------------------------------
This email message is for the sole use of the intended recipient(s) and may contain
confidential information.  Any unauthorized review, use, disclosure or distribution
is prohibited.  If you are not the intended recipient, please contact the sender by
reply email and destroy all copies of the original message.
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[U-Boot] Booting on seaboard (unaligned access)

[Albert ARIBAUD]

Hi Simon,

On Wed, 6 Feb 2013 13:06:15 -0800, Simon Glass <sjg@chromium.org> wrote:

> Hi Tom,
> 
> I can't boot mainline on seaboard at present without reverting this commit:
> 
> c50afc1d Revert "arm: armv7: add compile option -mno-unaligned-access
> if available
> 
> Is there supposed to be another way of fixing this, or is my toolchain
> broken? I may have missed something.

You mean you need to revert the revert to get U-Boot to run, correct?

As per our IRC discussion, I understand the board just hangs, so I
suspect an exception in SPL, as all exceptions handlers there basically
branch to themselves.

I'd like to know if the board did work between c50afc1d and now, for at
least some commits, or if it never ever worked since c50afc1d.

Also, if running the board under JTAG debug is possible, I suggest
doing so while making sure you'll get control if an exception occurs.
This should tell us which exception occurred and hopefully where and
why.

> Regards,
> Simon

Amicalement,
-- 
Albert.