Hi Wei,
It's probably the xHCI controller code running. I'm not sure when
it's actually
active though - If you have any USB3 devices plugged into the system,
you might want
to remove those and try flashing again. It *MIGHT* be that simple, but
we're probably
not that lucky. If that *DOES* work, please let us know - I'd be very
interested in
knowing that.
I didn't see what BIOS rom you were trying to flash - If it's an IBV
BIOS, you could try
rebooting and disabling USB3 in the setup engine. I'd expect that that
would take care
of the problem. Then we just need to figure out a way to disable this
without disrupting
the system at runtime...
Hope this helps.
Martin
On 04/26/2013 01:04 PM, Wei Hu wrote:
Hi Rudolf,
I wanted to follow up with an issue on my AMD chipset. Here is my
original question:
http://www.flashrom.org/pipermail/flashrom/2013-April/010924.html.
Basically the IMC bit in the LPC PCI config register at offset 0x40 is
not set, but flashrom still finds something else is accessing the
flash chip and decides to bail out.
I was led to your patch so I gave it a try. I removed the IMC bit
check in your patch but still the IMC seems to be indeed inactive,
since mbox_port read 0. Also I noticed you wrote 0x5a to enter conf
mode and 0xa5 to exit conf mode. According to the datasheet 0x55 and
0xaa should be written instead. I made that change but it didn't help
either.
Can someone think of any other possible things that's accessing the chip?
Thanks,
Wei
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