Got it:
This line in usb-uhci.c (reset_uhci()) broke it:
pci_config_writew(bdf, USBLEGSUP, USBLEGSUP_RWC);
According to the US15W datasheet, there is no register at this offset,
there does seem to be something there because it reads 0x0400 after that
write, but I don't think it's what SeaBIOS
Matthew Millman wrote:
This line in usb-uhci.c (reset_uhci()) broke it:
pci_config_writew(bdf, USBLEGSUP, USBLEGSUP_RWC);
According to the US15W datasheet, there is no register at this offset,
there does seem to be something there because it reads 0x0400 after that
write, but I don't
Thanks for the response Kevin
I've spent another day trying to get to the bottom of this one, still no
luck.
Attempt to 16 byte align: No difference.
Errata: One point mentioned with regards to UHCI but its affect would be a
complete disabling of the controller, not this _sort of_ working issue
Hi
I'm seeing a rather interesting problem with UHCI on Intel US15W and
wondered if anyone else had seen anything like this before. I noticed it
when I plugged in a USB keyboard, which caused a crash due to something
corrupting the stack? it turns out that the stack has been trashed by the
UHCI
