[LinuxBIOS] RCA RM4100 almost running - help

Joseph Smith joe at smittys.pointclark.net
Tue Sep 4 11:21:40 CEST 2007

Quoting Corey Osgood <corey.osgood at gmail.com>:

> Joseph Smith wrote:
>> Quoting Corey Osgood <corey.osgood at gmail.com>:
>>> Joseph Smith wrote:
>>>> Hello,
>>>> I almost have the system I have been woring on for so long now running
>>>> on the console (vga is next). Here is a recap of my hardware:
>>>> i82830 Northbridge
>>>> i82801db Southbridge (using i82801XX)
>>>> SMSC lpc47m192 Superio (using smscsuperio)
>>> Great news!
>>>> For some reason it keeps restarting over and over again right after
>>>> the "SMBus controller enabled" message (see below). Any ideas what
>>>> could be causing this?
>>> Check that there isn't a GPIO (usually GP3) that's set to reboot the
>>> system automatically when the timer runs up. If there is, it needs to be
>>> disabled prior to ram init. Also, have you run ram_check to make sure
>>> that your ram is initializing correctly?
>>> -Corey
>> In my Config.lb I have:
>> device pnp 2e.7 off end # GAME_MIDI_GIPO1
>> device pnp 2e.8 off end # GPIO2
>> device pnp 2e.9 off end # GPIO3
>> device pnp 2e.a off end # ACPI
>> They seem to be off is that what you mean?
> Those only affect LB after the ram has been initialized. You'd have to
> manually disable it in pre-ram if that were the problem, but I think
> it's much more likely the below. I've only seen GPIO resets on Via
> hardware, so you're probably safe.
>> Ok, I ran it with:
>> /* Check RAM. */
>> ram_check(0, 640 * 1024);
>> What does this "Fail" mean? How do I fix this? Does this have anything
>> to do with the fact that the memory (128MB) is embedded into the board
>> (shows on original bios in slot 01) and does not have SPD?
> No, this means that your ram isn't being initialized correctly
> somewhere. Start by checking that your northbridge timing registers are
> set correctly, drbs set correctly, etc. As long as the init itself
> follows the same procedure as the 440bx and 810, that should be correct.
> Comparing lspci -xxx -s 0:0.0 and dump_dev(0) (from debug.c) might also
> provide some help.
> -Corey
The only thing about lspci -xxx -s 0:0.0 is you can't see all of the  
16bit and 32bit registers. Is there another way in linux to dump 0:0.0  
so you can see all of the values?

Thanks - Joe

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