[coreboot] Run PCI rom before PCI bus scan??
corey.osgood at gmail.com
Thu Feb 7 20:21:43 CET 2008
On Feb 7, 2008 12:45 PM, Marc Karasek <Marc.Karasek at sun.com> wrote:
> 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.
Hmm, no intel eeprom, but I do see a chip marked "atmel532", which google
says is a serial eeprom, less than half an inch from the southbridge.
> 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
> Marc Karasek
> Sun Microsystems
> 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
> >> and
> >> "The integrated LAN controller will be disabled if no Platform LAN
> >> Connect component is detected (See Section 126.96.36.199)."
> >> 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 188.8.131.52, could be interesting if
> > "Platform LAN Connect component" is usually found in the BIOS.
> > //Peter
> coreboot mailing list
> coreboot at coreboot.org
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