[coreboot] Run PCI rom before PCI bus scan??

[Marc Karasek]

Let me add me two cents..

I have dealt with the Intel MACs in the past so let me dreg up some 
memorries...

 From what I recall,  you had a serial eeprom on the board that 
contained the init for the chip.  This was the 82545GM.

The eeprom image was protected by a CRC and if the CRC failed it would 
not load the image.  The device would also not be visible on the PCI Bus 
unless the eeprom was loaded.  I have attached the 82545 eeprom spec 
sheet (freely avail from Intel) maybe this will give you some insight.

Intel has a program to read/update the paramters.  I never used it, 
mainly because I was on an embedded system running MIPS-Linux and they 
would only provide a x86 binary, no src code.   It took me a couple of 
iterations to get the eeprom right.  Maybe you can get the utility from 
Intel and dump the eeprom. 

What I do not understand is why you would be having problems with 
coreboot.  the only thing I can guess is the default eeprom is putting 
the MAC into a state that the BIOS must take it out of (maybe WoL).  Did 
you say you have the spec sheet for the part and it talks about the eeprom?

/*********************
Marc Karasek
MTS
Sun Microsystems
mailto:marc.karasek at sun.com
ph:770.360.6415
*********************/



Peter Stuge wrote:
> On Tue, Feb 05, 2008 at 02:49:52PM -0500, Corey Osgood wrote:
>   
>> "In the LAN controller the D0 state is partitioned into two substates
>>
>> and
>>
>> "The integrated LAN controller will be disabled if no Platform LAN
>> Connect component is detected (See Section 5.2.1.3)."
>>
>>
>> Any help?
>>     
>
> The first one isn't that interesting since it also implies that PCI
> config regs are actually available.
>
> The second one, or rather section 5.2.1.3, could be interesting if
> "Platform LAN Connect component" is usually found in the BIOS.
>
>
> //Peter
>
>   
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