RE: [microblaze-uclinux] Spartan 3E500 kits, REV C and REV D

["Leonid" <Leonid@xxxxxxxxx>]

If something wrong with SDRAM, you shall be able easily catch that in
debugger. I had similar problem with Petalinux reference design for
Spartan 3, rev C. Bits 5 and 21 of DDR controller didn't work and
resulting image wasn't useful. I resolved the problem, switching to
older version of memory controller.

Leonid.

-----Original Message-----
From: owner-microblaze-uclinux@xxxxxxxxxxxxxx
[mailto:owner-microblaze-uclinux@xxxxxxxxxxxxxx] On Behalf Of e.stiebler
Sent: Wednesday, June 20, 2007 6:48 AM
To: microblaze-uclinux@xxxxxxxxxxxxxx
Subject: Re: [microblaze-uclinux] Spartan 3E500 kits, REV C and REV D

Jens Ravn Alsig wrote:
> Hi,
> 
> What do you mean be "boot anything"?

I can boot the "first stage loader" which comes via JTAG.
If I download U-Boot or linux kernel, the loader says the the download 
was OK, but nothing else happens.
I think, the u-boot prints as first message that the SDRAM is OK, that's
why I'm thinking that soemthing is wrong with the SDRAM ...

> I also have a rev d kit and had some problems with downloading via
jtag.

Did you change anything ?
Are you using any of the "prebuilt" downloads from the last petalogix 
distribution ?
  The
> download seemed ok but when I tried to execute the program failed. 

"somehow" the same behavior ;-0

> I fixed the problem by justing the configuration jumpers. 
> They should be (M2:M1:M0) = 0:1:0

My JTAG is OK ...

Cheers
> 
> /Jens
> 
> 
> 
> On Tue Jun 19 23:30 , 'e.stiebler' <emu@xxxxxxxxxx> sent:
> 
>> Hi all,
>> as it seems I'm the first one who has one of the REV D kits here ...
>>
>> The REV D has 64 MBytes of SDRAM instead of the 32 MBytes on the REV
C.
>>
>> Hopefully that the reason, I can't boot anything but the first stage
on 
>> my board. I already found some occurrences of the SDRAM 16Mx16 IP,
and 
>> changed it to SDRAM_32Mx16 already, but it seems I didn't catch all
of 
>> them. BTW, it seems that it is the same DDR SDRAM as on the 
>> Spartan3e1600 board.
>>
>> Cheers
>> ___________________________
>> microblaze-uclinux mailing list
>> microblaze-uclinux@xxxxxxxxxxxxxx
>> Project Home Page :
http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
>> Mailing List Archive :
http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/
>>
>> )
> 
> 
> 
> ___________________________
> microblaze-uclinux mailing list
> microblaze-uclinux@xxxxxxxxxxxxxx
> Project Home Page :
http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
> Mailing List Archive :
http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/
> 
> 
> 
___________________________
microblaze-uclinux mailing list
microblaze-uclinux@xxxxxxxxxxxxxx
Project Home Page : http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
Mailing List Archive :
http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/


___________________________
microblaze-uclinux mailing list
microblaze-uclinux@xxxxxxxxxxxxxx
Project Home Page : http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
Mailing List Archive : http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/