From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Wozniak Date: Tue, 07 Jun 2005 15:33:55 -0400 Subject: [U-Boot-Users] PPC440GX reset command doesn't work In-Reply-To: <91B22F93A880FA48879475E134D6F0BEF8CC9B@CA1EXCLV02.adcorp.kla-tencor.com> References: <91B22F93A880FA48879475E134D6F0BEF8CC9B@CA1EXCLV02.adcorp.kla-tencor.com> Message-ID: <42A5F6A3.4050407@mc.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Howard, Marc wrote: > 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. Good point. But shouldn't the core and chip level reset still function, independent of the external reset line? The answer might be buried somewhere in the PPC440 tech manuals. I might also talk to our hardware guys about this. > 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. >> >>> >>> >>>>>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 >>> >>> >> >> >> >>------------------------------------------------------- >>This SF.Net email is sponsored by: NEC IT Guy Games. How far >>can you shotput >>a projector? How fast can you ride your desk chair down the >>office luge track? >>If you want to score the big prize, get to know the little guy. >>Play to win an NEC 61" plasma display: http://www.necitguy.com/?r=20 >>_______________________________________________ >>U-Boot-Users mailing list >>U-Boot-Users at lists.sourceforge.net >>https://lists.sourceforge.net/lists/listinfo/u-boot-users >> > >