gaze18 BIOS Debug Port

[sun2sirius]

We are trying to make use of the BIOS DEBUG PORT - UART0 but cannot find where it is on the board. We develop UEFI firmware components and really need debug output - what are the options?

[crawfxrd]

1. Scour the board for the TX/RX pads and solder wires to the pin
   • I think we've done this a couple of times; we routed the wires through the Kensington security slot
2. Route debug logging through the EC (CONFIG_CONSOLE_SYSTEM76_EC)
   • ec/docs/debugging.md
3. Potentially Intel Trace Hub?
   • Never attempted to used it, but have seem some MRs in gerrit recently about enabling it

For Intel SoCs, it may be best to look into using Trace Hub.