[coreboot] Re: Debugging EHCI - but Pre-CBMEM romstage/ramstage console overflowed, log truncated

[Kyösti Mälkki]

On Sun, Oct 27, 2019 at 9:55 AM Mike Banon  wrote:
> Thank you very much for your reply. Still curious about this
> "Pre-CBMEM log truncated" issue - how would you have solved it?

It is called config PRERAM_CBMEM_CONSOLE_SIZE and I don't have a good
value to give you, specially assuming AGESA with its convoluted CAR
setup. Increase the config too much and it will fail to build, assume
it to fail to boot way sooner. AGESA with SMP romstage is somewhat
memory hungry and there is CAR no-eviction mode either.

As for that EHCI debug output: One  could reduce its verbosity by
removing retry loops and using a predefined fixed USB port
(USBDEBUG_HCD_INDEX != 0). But only USB2 high-speed devices give
interesting output there.

Kyösti