EHCI debugging configuration?

[nemanjan00]

I might have some time in next few days to do this.

This can be very useful...

Edit:

Upstream docs:

https://www.coreboot.org/EHCI_Debug_Port

[merge]

While this is potentially useful in general, we don't actually need this. At least not in our release config. We want to lower the barrier to flashing a working image. People who'd use such a debugger would most probably build coreboot themselves too.

[nemanjan00]

This is something you do not need, until you do. I think it is better to just have it so you can debug in case of failure...

[merge]

There doesn't seem to be a specific coreboot config we need, for ivybridge. Does coreboot simply support this, and it's only Linux that has to be configured, for reading it?

[merge]

I guess so, but please reopen if we'd need a config change here. thanks