tree 3b4c49c1fd14253b38d71d4f2b93f194d94f2afa
parent 9bbfafbef89aef741e123349d5f2e1100eefd154
author CoolStar <coolstarorganization@gmail.com> 1708718962 -0800
committer Matt DeVillier <matt.devillier@gmail.com> 1709066482 +0000

soc/intel/tigerlake: Fix processor hang while plug unplug of TBT device

Port 9c348a7b7ea3 ("soc/intel/alderlake: Fix processor hang while plug
unplug of TBT device") from Alder Lake to fix a similar issue present
on Tiger Lake:

> Processor hang is observed while hot plug unplug of TBT device. BIOS
> should execute TBT PCIe RP RTD3 flow based on the value of
> TBT_DMA_CFG_VS_CAP_9[30]. It should skip TBT PCIe RP RTD3 flow, if
> BIT30 in TBT FW version is not set.

> BUG=b:194880254

> https://review.coreboot.org/c/coreboot/+/56503

Change-Id: Ie5409111d4239be86c0b153f01b4fe5fc6af352c
Signed-off-by: CoolStar <coolstarorganization@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80718
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>