You could try this :
exec -c "console=ttyS1,115200 root=/dev/mtdblock4 rw, mem=64M@0x00000000"
works for me on ixp425 based board.
Cheers,
Alfred
On Tue, 22 Feb 2005 09:56:06 -0800, Krishna Ganugapati
<krishnag@marakicorp.com> wrote:
Thanks Nickolay
I did specify all four parameters to "exec" and while things do not dump
core or anything -- it looks like its hanging somewhere in the Linux
startup. I understand this may be the wrong place to pose the question,
but
has anyone used the BDI2000 to debug a Linux target after it has been
invoked from Redboot using exec.
The BDI2000 documentation is pretty sparse.
I also discovered that the base address for the IXDP425 is 0x00600000
after
greping through the sources.
My board only has UART 0 and I'm suspecting that it has something to do
with
how the Linux console works. I get no output to my console window once I
invoke exec...
I need to figure out how to debug a Linux target under Redboot using a
BDI2000
Thanks
Krishna
----- Original Message -----
From: "Nickolay" <nickolay@protei.ru>
To: "Krishna Ganugapati" <krishnag@marakicorp.com>
Cc: <ecos-discuss@ecos.sourceware.org>
Sent: Tuesday, February 22, 2005 3:18 AM
Subject: Re: [ECOS] Help with booting Linux off my Redboot prompt
> Krishna Ganugapati wrote:
>
>> I have successfully built redboot for my IXP425 - can load redboot
>> image
>> store it in flash, npe's work fine and I can successfully tftp images
>> down to my board from by RedHat9 Linux box.
>>
>> I've built Linux kernels and a rootfs.
>>
>> My compressed Linux kernel is zImage
>>
>> and my compressed rootfs is rootfs.gz
>>
>> I execute the following commands at my Redboot console
>>
>> a) load -r -v -b 0x00800000 rootfs.gz ; load the rootfs.gz image @
>> 0x0800000
>>
>> b) load -r -v -v 0x01600000 zImage ; load the compressed kernel
>> zImage
>> @ 0x01600000
>>
>> c) exec
>>
>> The resulting output is
>> Using base address 0x01600000 and length 0x000b73c0 (which is the
>> correct
>> size of the image)
>>
>> However following that, I get nothing....
>>
>> Any ideas how I can debug further... or should I be taking this to
>> another alias...
>>
>>
>> Thanks!
>>
>> Krishna
>
> Try explicitly indicate what you want load from.
> exec -b 0x01600000 -l 0 0x01600000
>
>
>
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