[U-Boot-Users] PPC440GX reset command doesn't work
Marc.Howard at kla-tencor.com
Tue Jun 7 20:11:17 CEST 2005
Try putting a scope/logic analyzer on your SYSRESET* line to see if it
is getting pulled down when you try to reset from U-Boot.
Marc W. Howard
> -----Original Message-----
> From: u-boot-users-admin at lists.sourceforge.net
> [mailto:u-boot-users-admin at lists.sourceforge.net] On Behalf
> Of Andrew Wozniak
> Sent: Tuesday, June 07, 2005 10:48 AM
> To: tsawyer+u-boot at sandburst.com
> Cc: U-Boot mailing list
> Subject: Re: [U-Boot-Users] PPC440GX reset command doesn't work
> Travis B. Sawyer wrote:
> > Andrew Wozniak wrote:
> >> Andrew Wozniak wrote:
> >>> We have a custom PPC440GX board running a ported version
> of U-Boot based
> >>> on the OCOTEA codebase. Most U-Boot commands are working
> - life is good.
> > <SNIP>
> >>> Just wondering if anyone else with a PPC440 target had any special
> >>> modifications to make 'reset' work.
> > Nope, it just works, on 3 different 440gx targets I have. The XES
> > XPedite1000, the Ocotea, and our custom hardware...
> hmmm.... will have to investigate further.
> Could our problem be related to how our PPC is configured from serial
> eeprom? Or might is be that DBCR (or some other control register) is
> misconfigured - disallowing a "system reset"?
> Thanks for confirming proper 'reset' operation as currently
> > -travis
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