Control not branching to the instruction present at resetvec i.e 0xfffffffc

Siva Prasad sprasad at bivio.net
Thu Jan 10 05:28:06 EST 2008


Ravi,

If you already have BDI2000, why don't you single step on it?

Thanks
Siva


Date: Sat, 5 Jan 2008 06:19:05 -0800 (PST)
From: Misbah khan <misbah_khan at engineer.com>
Subject: Re: Control not branching to the instruction present at
	resetvec	i.e 0xfffffffc
To: linuxppc-embedded at ozlabs.org
Message-ID: <14633599.post at talk.nabble.com>
Content-Type: text/plain; charset=us-ascii


Hi Mr Ravi ...
I suggest you to post a new concern in a new thread ....

----Misbah 

ravi.rao wrote:
> 
> Hi All,
>     We have a custom target board based on PPC-EP405. We just got the 
> board from the hardware team .I connected the board to BDI200 and
powered 
> it on. 
> The control came to the resetvec address which is 0xfffffffc. I was
able 
> to read and write to flash. So I erased the flash and burnt the
bootloader 
> into flash from 0xfffc0000.
> I verified that the instruction at 0xfffffffc is 4bfc2104 whicis
actually 
> a branch to 0xfffc2100. Also a memory dump of 0xfffc2100 shows the
correct 
> code. This proved that
> the uboot bootloader was burnt properly.
> Now when I reset the board the control never reaches 0xfffc2100 i.e
for 
> some reason the code at the resetvec is not getting executed. Any help
or 
> pointers to resolve this is greatly appreciated.
> Thanks,
> Ravishankar Govindarao
> RFL Electronics Inc.
> E-mail : Ravi.Rao at rflelect.com
> Voice: 973.334.3100 Ext. 233
> Fax: 973.334.3863
>  



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