[coreboot] Asus M2V-MX problems
hillmands at gmail.com
Mon Feb 6 05:37:02 CET 2012
I have finally gotten another programmed BIOS chip. It turns out the
old chip was damaged somehow. Here is the error that I got from Flashrom:
...Erasing flash chip...ERASE FAILED at 0x00000000! Expected =0xff,
Read=0x4c, failed byte count from 0x00000000-0x00000fff: 0xfb3...
I also got that error while trying to program the latest factory BIOS
file using flashrom; flashrom was able to erase and program the new chip
with no problems. My original problem of creating a proper image for
this board still remains. Superiotool found ITE IT8716F (id=0x8716,
rev=0x1) at 0x2e. Any help would be appreciated.
On 1/31/2012 4:36 PM, Rudolf Marek wrote:
>> I was hoping to use the board above to experiment with Coreboot. The
>> board has
>> the same northbridge as the Asus M2V-MX SE (VIA K8M890) and the same
>> as the Asus M2V (VIA 8237A). Both of those chipsets are fully
>> Thinking that maybe I can at least get the board to boot ASAP, I
>> built Coreboot
>> for the Asus M2V board to get the southbridge functionality. I also
>> didn't use
>> the M2V-MX SE profile because it has the SPI chip, while the M2V-MX
>> board has a
>> PLCC-32 chip.
>> The board booted fine, except I have no video, serial port or ability
>> to write
>> to the BIOS chip.
> No video -> you need to include the extracted VGA bios from original
> BIOS. No serial port looks like wrong superio setup. No ability to
> write to the chip sounds interesting ? What do you mean by that.
> Flashrom cannot no-long overwrite the chip content? Maybe just some
> GPIO needs to be raised. Do you have more PLCC chips or other boards
> so you can hotswap them?
>> I know the board booted fine because I was able to SSH into
>> the box using a PCI network card. Considering that both the M2V and
>> M2V-MX have
>> the same southbridge chip, I don't understand why there was not
>> serial port or
>> write access to the BIOS chip. Can someone shed some light on that
>> for me, please.
> Yep see above. I would suggest to run the superiotool (see utils dir)
> and check what kind of superio is really there. Or even better provide
> ./superiotool -d dump best with original bios running if possible.
> Then you just need to change few lines and you should get serial back.
> I can even help with that but we need to know not only the chip there
> but also how the chip is configured.
> For the VGA you need to use bios_extract and extract the VGA bios from
> orig bios image and tell coreboot via menu to include that (you need
> just pci ID lspci -n will tell)
>> My other problem is I would like to create a build profile for the
>> M2V-MX using
>> the code from the M2V for the southbridge and the code from the
>> M2V-MX SE for
>> the northbridge. Is that a good idea or would I have to do some
>> other things?
>> I learned C programming in 1993 and used it only until 1998; I am a
> Well C is simple you will got it back soon.
>> My ability to make sense of low-level chipset stuff is also very
> If you ask good questions you will get answers.
>> However, I am a fast learner and I am desperate to get something
>> accomplished for a homebrew thin client project that I have spent way
>> too much
>> time working on.
>> My goal is to extend the life of boards that people send in for
>> recycling by
>> turning them into more reliable diskless information terminals.
> A nice coreboot use!
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