[LinuxBIOS] flash issue with AMD Ref board

YhLu YhLu at tyan.com
Thu May 12 20:20:41 CEST 2005


some GPIO need to be enabled. I guess.

You need to check the schematic in AMD NDA web site to find out which GPIO
control that.

YH 

> -----Original Message-----
> From: beneo [mailto:beneo at comcast.net] 
> Sent: Thursday, May 12, 2005 10:57 AM
> To: Ronald G. Minnich
> Cc: linuxbios at openbios.org; YhLu
> Subject: Re: [LinuxBIOS] flash issue with AMD Ref board
> 
> 
> Ron,
> 
> I was also thinking if the AMD senanade board has some 
> special hardware to protect eeprom write. but after I tried 
> to boot with AMI BIOS into Linux and use same flash_and_burn 
> utility to flash LinuxBIOS into the EEPROM sucessufully, I 
> started to be convienced there are some setup issue within 
> LinuxBIOS caused this.
> 
> I spent sometime to check 8111 southbridge, but I couldn't 
> find anything there.
> 
> Is that possible some setting in the Opteron that prevent 
> write access to the EEPROM address be passed down 
> southbridge?  I'm not farmilar with the Opteron NB and CPU, 
> if you guys can give me some pointers, that would help me a lot.
> 
> I don't have a scope now, I will see if I can get one.
> 
> Thanks
> 
> beneo
> 
> ----- Original Message -----
> From: "Ronald G. Minnich" <rminnich at lanl.gov>
> To: "beneo" <beneo at comcast.net>
> Cc: <linuxbios at openbios.org>; "YhLu" <YhLu at tyan.com>
> Sent: Thursday, May 12, 2005 7:51 AM
> Subject: Re: [LinuxBIOS] flash issue with AMD Ref board
> 
> 
> > the flash problem: this sounds more to me like an enable 
> line that has
> > been added for FLASHWR.
> >
> > Beneo, do you have a scope? it is often useful to put a 
> scope on the WR
> > line and see if it is toggling.
> >
> > ron
> >
> >
> > _______________________________________________
> > LinuxBIOS mailing list
> > LinuxBIOS at openbios.org
> > http://www.openbios.org/mailman/listinfo/linuxbios
> 




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