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* [U-Boot-Users] u-boot -> Linux prompt assistance
@ 2007-08-21  3:40 Alfred Manheim
  2007-08-21  8:02 ` Wolfgang Denk
  0 siblings, 1 reply; 2+ messages in thread
From: Alfred Manheim @ 2007-08-21  3:40 UTC (permalink / raw)
  To: u-boot

I have u-boot running and am currently working on the Linux prompt. I store
uImage at ffd00000. u-boot is at fff00000. 

* The Freescale BSP for the MPC8360 was used for the base. u-boot
1.1.6 and Linux 2.6.19 are the versions selected and reported.
* u-boot is running at the prompt and seems stable for u-boot functionality.
* Enabling the 64M of DDR2 memory was quite an endeavor but it appears
stable today. Nothing shows up with the basic u-boot memory test, and there
are no crashes using the normal u-boot functions. i-cache is enabled. Memory
problems have not been fully ruled out. Any suggestions on how to validate
the memory better?
* Linux (~2.6.19) is compiled with no changes at this point. 

Executing "bootm ffd00000" results in a transfer to Linux that (due to the
CodeWarrior USB TAP?) I can follow the code up to the RFI in head_32.S. It
looks like it is executing farther than that. I have attached a dump of the
memory found at log_buf. Also attached is System.map. 

My interpretation of the stack dump suggests that start_here is successfully
executing in high memory and the crash is within MMU_init. The crashes that
follow would seem to be as much a result of this first problem.

Any suggestions or observations about this crash would be appreciated.

Alfred Manheim

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^ permalink raw reply	[flat|nested] 2+ messages in thread

* [U-Boot-Users] u-boot -> Linux prompt assistance
  2007-08-21  3:40 [U-Boot-Users] u-boot -> Linux prompt assistance Alfred Manheim
@ 2007-08-21  8:02 ` Wolfgang Denk
  0 siblings, 0 replies; 2+ messages in thread
From: Wolfgang Denk @ 2007-08-21  8:02 UTC (permalink / raw)
  To: u-boot

In message <007701c7e3a4$ff339220$fd9ab660$@rr.com> you wrote:
> 
> Executing "bootm ffd00000" results in a transfer to Linux that (due to the
> CodeWarrior USB TAP?) I can follow the code up to the RFI in head_32.S. It
> looks like it is executing farther than that. I have attached a dump of the
> memory found at log_buf. Also attached is System.map. 
> 
> My interpretation of the stack dump suggests that start_here is successfully
> executing in high memory and the crash is within MMU_init. The crashes that
> follow would seem to be as much a result of this first problem.
> 
> Any suggestions or observations about this crash would be appreciated.

Just an observation: this is off topic here.

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
In accord with UNIX philosophy, Perl gives you enough  rope  to  hang
yourself.              - L. Wall & R. L. Schwartz, _Programming Perl_

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2007-08-21  3:40 [U-Boot-Users] u-boot -> Linux prompt assistance Alfred Manheim
2007-08-21  8:02 ` Wolfgang Denk

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