Bill XIE has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/31631 )
Change subject: mb/lenovo/t430s: Open PCIe port #5 for Thunderbolt controller ......................................................................
Patch Set 3:
Patch Set 3:
Patch Set 3:
Patch Set 3: Code-Review+1
Is there a gpio to detect the Thunderbolt controller at runtime?
The controller hotplugs itself to the chipset when a downstream device is hotplugged into it,
You mean a gpio to detect the TB controller hidden from the pci-e bus due to absence of downstream devices?
Yes. Everything else has one detection gpio: Bluetooth, wwan, dGPU, ...
If there is one detection gpio for the TB controller, how can I mark it? The gpio.c generated by autoport on t430s with TB controller running vendor firmware do have meaningful differences with the gpio.c in coreboot's tree.