[coreboot] Run PCI rom before PCI bus scan??
Marc.Karasek at Sun.COM
Thu Feb 7 18:45:20 CET 2008
Let me add me two cents..
I have dealt with the Intel MACs in the past so let me dreg up some
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?
mailto:marc.karasek at sun.com
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
>> "The integrated LAN controller will be disabled if no Platform LAN
>> Connect component is detected (See Section 188.8.131.52)."
>> 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 184.108.40.206, could be interesting if
> "Platform LAN Connect component" is usually found in the BIOS.
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