From: annamaya <annamaya@yahoo.com>
To: annamaya <annamaya@yahoo.com>, linuxppc-embedded@ozlabs.org
Subject: Re: Kernel booting issues on a MPC8270 board
Date: Fri, 21 Jan 2005 12:16:32 -0800 (PST) [thread overview]
Message-ID: <20050121201632.69802.qmail@web53804.mail.yahoo.com> (raw)
In-Reply-To: <20050120224936.33390.qmail@web53804.mail.yahoo.com>
I debugged this problem a little more and realized
that the reset was happenning right after the
execution of the first kernel instruction at
0x0000000c. The instruction at this location was
"mfpvr r28". I traced this back to a snippet of code
that was dealing with pipeline depth issues on the
MPC8260. Once I commented this code out, more
instructions were issued but the reboot happens
elsewhere. I am not able to pin-point the location of
the debug since my BDI fails to catch the reset when
it happens. Can someone point me to the cause of this
situation? Thanks in advance.
--- annamaya <annamaya@yahoo.com> wrote:
> I am trying to boot a mvista Linux Kernel ver.
> 2.4.20
> on a MPC8270 board. I am using the embed_config()
> in
> zImage to pass the board info since the bootloader
> is
> not ppcboot. After the message, "Now booting the
> kernel", the board just reboots, as if someone
> yanked
> the reset line. I have BDI hooked up but it doesn't
> seem to catch the reset point in the code. And I am
> unable to trace this to anything in the code. Any
> suggestions? Thanks in advance.
>
>
>
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next prev parent reply other threads:[~2005-01-21 20:16 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-20 22:49 Kernel booting issues on a MPC8270 board annamaya
2005-01-21 20:16 ` annamaya [this message]
2005-01-21 20:51 ` Randy Vinson
2005-01-21 20:53 ` annamaya
2005-01-21 21:20 ` annamaya
[not found] <000b01c50013$d7070fb0$0301a8c0@chuck2>
2005-01-24 15:11 ` annamaya
2005-01-24 22:42 ` annamaya
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