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@lists.sourceforge.net [mailto:u-boot-users-admin@lists.sourceforge.net] On Behalf Of Andrew Wozniak Sent: Tuesday, June 07, 2005 10:48 AM To: tsawyer+u-boot@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 implemented.
-travis
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