[U-Boot-Users] Debug from SDRAM

[U-Boot-Users] Debug from SDRAM

[Roel Loeffen]

Hello,

I've donwloaded the ELF file with the PowerTAP pro, everything works fine.
The ELF File directs the PowerTAP download to 0xFFFx.xxxx (Flash Memory)

Is there a possibility to Compile and Link the code in a way the code can
run from SDRAM?

Thx Roel

[U-Boot-Users] Debug from SDRAM

[Wolfgang Denk]

In message <NCBBIIOPCEBAMFLLKKBKKECOCGAA.RL@prodrive.nl> you wrote:
> 
> I've donwloaded the ELF file with the PowerTAP pro, everything works fine.
> The ELF File directs the PowerTAP download to 0xFFFx.xxxx (Flash Memory)
> 
> Is there a possibility to Compile and Link the code in a way the code can
> run from SDRAM?

Why would you want to do that? It is usually much easier to debug the
original code following the designed-in steps of  the  initialization
sequence.


It is actually not difficult to make the code to  be  startable  from
RAM,  but it requies some modifications, and you have to know exactly
what you are doing.

The fact that you have to ask if this is possible suggests  that  you
should  better try to get the original code running (from flash). [No
offence meant, just speaking from experience.]

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
You could end up being oddly sad and full of a strange, diffuse  com-
passion  which would lead you to believe that it might be a good idea
to wipe out the whole human race and start again with amoebas.
                                 - Terry Pratchett, _Guards! Guards!_

[U-Boot-Users] 405Gpr timer interrup

[Jerry Walden]

I have a new problem that I am trying to solve - up until 
now I have not noticed that the timer interrupt has not 
been working with my 405GPr and u-boot.  I just discovered 
this problem because we recently connected a phy to the 405,
and I am now trying to perform a "tftpboot" - I see a message
that one ARP packet goes out, and then the board just sits there
with no further output - I expected at least a timeout message, and
there is indeed a timeout in the code that is supposed to occur if
a proper response to the ARP is not recieved within some period of 
time.

So - the problem I have is trying to figure out what could be wrong
with the timer.  Could you please advise me as to where I can start?

Thanks 

Jerry Walden

[U-Boot-Users] Debug from SDRAM

[Xianghua Xiao]

I have a new board(the chip is just being made) with flash on its local
bus, but the localbus-flash is not working. i modified the code on a few
key configs including CFG_RAMBOOT, CFG_ENV_IS_NOWHERE and
CFG_NO_FLASH(grep them in u-boot and find their use) to run U-Boot in
DDR directly. Of course you need use your debugger to initilize
DDR/SDRAM before you download U-Boot to it.

if you have a working flash, you really don't need to do so and it's
better to boot from flash and wait for U-Boot to configure your SDRAM
instead...

regards,

xianghua

On Wed, 2003-04-09 at 09:09, Roel Loeffen wrote:
> Hello,
> 
> I've donwloaded the ELF file with the PowerTAP pro, everything works fine.
> The ELF File directs the PowerTAP download to 0xFFFx.xxxx (Flash Memory)
> 
> Is there a possibility to Compile and Link the code in a way the code can
> run from SDRAM?
> 
> Thx Roel
> 
> 
> 
> 
> -------------------------------------------------------
> This SF.net email is sponsored by: Etnus, makers of TotalView, The debugger 
> for complex code. Debugging C/C++ programs can leave you feeling lost and 
> disoriented. TotalView can help you find your way. Available on major UNIX 
> and Linux platforms. Try it free. www.etnus.com
> _______________________________________________
> U-Boot-Users mailing list
> U-Boot-Users at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/u-boot-users

[U-Boot-Users] Debug from SDRAM

[Roel Loeffen]

Hello,

I've donwloaded the ELF file with the PowerTAP pro, everything works fine.
The ELF File directs the PowerTAP download to 0xFFFx.xxxx (Flash Memory)

Is there a possibility to Compile and Link the code in a way the code can
run from SDRAM?

Thx Roel