[U-Boot-Users] Running U-boot on RAM

sathesh babu sathesh_edara2003 at yahoo.co.in
Tue Dec 19 19:10:35 CET 2006

Hi Denk,
   Could you clarify the following.
    - If we want use u-boot in embedded system, The initial part of u-boot runs from the Flash.So Flash is mandatory.
  My goal is :
     On my embedded platform, the flash is not yet ready.So i wanted to load u-boot on DDRAM/SRAM by changing the TEXT address and set PC to start of start () using JTAG debugger.
  could you please clarify Is it possible to boot from RAM as i mentioned above.
  Any environment variables are access from the Flash during u-boot bootup time.

Wolfgang Denk <wd at denx.de> wrote:
  In message <998418.53833.qm at web7905.mail.in.yahoo.com> you wrote:
> I would like to run complete u-boot image ( on MIPS processor) from SDRAM instead of flash.
> Could you suggest me how to do?.

Please read the FAQ:

> I think i need to change u-boot.lds script.

...and some other, highly critical things.

> --0-1947689139-1166413831=:53833
> Content-Type: text/html; charset=iso-8859-1
> Content-Transfer-Encoding: 8bit

Please never post HTML here.

Best regards,

Wolfgang Denk

Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Life would be so much easier if everyone read the manual.

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