[U-Boot-Users] Start with u-boot on at91rm9200 on AT91RM9200-EK

[Erdmann, Thomas]

Hello Wolfgang,
that is an important Information:
The original u-boot is build for running out of the NOR -Flash and not for serial Download and run out of RAM - did i understand correctly ?
The Atmel Evaluation Board Docs describe a way of 
A) X-Modem a loader.bin to RAM and start it
B) X-Modem an u-boot.bin to RAM and start it
C) Kermit with this boot.bin and flash this with u-boot
D) Kermit a u-boot.gz and flash this 

After configuring the cpu to "boot external" it then runs out of the flash.

The Atmel Docs also write to generate the binary only delivered Files the two steps:
1) Patch the Source for Support of the soldered Flash Chip
2) Compile it

But with your words, if i do so only a Version of u-boot for direct flashing to the NOR Flash Chip is generated.

Is there a way to generate an u-boot Version for the Way Atmel describes in
any Version or have i to ask Atmel how they patched their Version ?

THX
  Thomas

> -----Ursprüngliche Nachricht-----
> Von: wd at denx.de [mailto:wd at denx.de] 
> Gesendet: Mittwoch, 19. Juli 2006 10:35
> An: Erdmann, Thomas
> Cc: u-boot-users at lists.sourceforge.net
> Betreff: Re: AW: AW: AW: [U-Boot-Users] Start with u-boot on 
> at91rm9200 on AT91RM9200-EK 
> 
> In message 
> <F6726C3E89A64840A5E10310E342A38F01BE93CB at xchback01.back.harti
> ng.intra> you wrote:
> >
> > AFAIK the AT91RM9200 Boot Sequence only allows 16k-4k size for the 
> > first Programm, E.g. the loader.bin.
> > The u-boot.bin ist about 92k, so it cant't be loaded directly.
> > First the loader.bin ist executed which initializes the 
> external SDRAM an it then loads u-boot.bin to external SDRAM. 
> > How can the u-boot be configured to be used so, i didn't 
> find any hints.
> 
> U-Boot boots from NOR flash, where no such restriction  
> exists.  Also please  note  that the existing code is for the 
> at91rm9200dk, not the ek (not sure if this matters, though).
> 
> Best regards,
> 
> Wolfgang Denk
> 
> --
> Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: 
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> danger already exists that  mathematicians have  made a 
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> man in the bonds of Hell."                          - Saint Augustine
> 
>