[U-Boot-Users] Debugging U-Boot with BDI3000

[M C]

Wolfgang,

The BDI config file for the Yosemite board on the U-Boot manual doesn't work (I can't erase the full range of flash between 0xFC000000 to 0xFFFFFFFF), so I've been using the one provided by AMCC.

When I do a reset halt, the PC does get set to 0xFFFFFFFC (please see below). But GDB still goes straight to 0x00000000. 

The BDI config file from the U-Boot manual only allocates 2MB of flash (there are 64MBs on this board). If I use this config file, the GDB goes to 0xdeadbeef (but the BDI telnet shows the correct 0xFFFFFFFC for the PC after a reset-halt).

U-Boot is fully operational after I flash it onto the board, regardless of which config file I use.


440EP>reset
- TARGET: processing user reset request
- TARGET: resetting target passed
- TARGET: processing target startup ....
- TARGET: core #0 PVR is 0x422218D4
- TARGET: processing target startup passed
440EP>halt
    Core number       : 0
    Core state        : debug mode
    Debug entry cause : JTAG stop request
    Current PC        : 0xfffffffc
    Current CR        : 0x280fff82
    Current MSR       : 0x00002000
    Current LR        : 0x0ff9b084
440EP>


> 
> Probably your BDI config file needs adjusting. Try what you see  when
> you  use  the  telnet  interface  directly, i. e. where do you end up
> after a "reset halt" ?
> 
> Best regards,
> 
> Wolfgang Denk
> 
> -- 
> DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
> "...one of the main causes of the fall of the Roman Empire was  that,
> lacking  zero,  they had no way to indicate successful termination of
> their C programs."                                     - Robert Firth

_________________________________________________________________
Change the world with e-mail. Join the i’m Initiative from Microsoft.
http://im.live.com/Messenger/IM/Join/Default.aspx?source=EML_WL_ChangeWorld
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.denx.de/pipermail/u-boot/attachments/20080520/ca47003b/attachment.htm