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soc/intel/tigerlake/apci: Only use SCM for ChromeOS 

Software Connection Manager doesn't work with Linux 5.13 or later and
results in TBT ports timing out. Not advertising this results in
Firmware Connection Manager being used and TBT works correctly.

Linux patch:
c6da62a219

Tested on:
* StarBook Mk V
* System76 Oryx Pro 8

Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Change-Id: Ib947c3c9cd843e54d4664509c15336178c0bc99e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58798
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Tim Crawford <tcrawford@system76.com>
This commit is contained in:
Sean Rhodes 2021-11-01 21:33:37 +00:00 committed by Tim Wawrzynczak
parent 66bed5495b
commit e72e857168
1 changed files with 7 additions and 0 deletions
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7
src/soc/intel/tigerlake/acpi/tcss.asl
View File

@ -154,6 +154,12 @@ Scope (\_SB)
CDW1 |= UNRECOGNIZED_REVISION
}
Return (Arg3)
#if CONFIG(CHROMEOS)
/*
* Software Connection Manager doesn't work with Linux 5.13 or later and
* results in TBT ports timing out. Not advertising this results in
* Firmware Connection Manager being used and TBT works correctly.
*/
} ElseIf (Arg0 == ToUUID("23A0D13A-26AB-486C-9C5F-0FFA525A575A")) {
/*
* Operating System Capabilities for USB4
@ -185,6 +191,7 @@ Scope (\_SB)
INTER_DOMAIN_USB4_INTERNET_PROTOCOL
CDW3 = Local0
Return (Arg3)
#endif
} Else {
CDW1 |= UNRECOGNIZED_UUID
Return (Arg3)