diff options
| author | Sean Rhodes <sean@starlabs.systems> | 2022-05-21 10:39:27 +0100 |
|---|---|---|
| committer | Martin L Roth <gaumless@gmail.com> | 2023-01-08 01:26:25 +0000 |
| commit | 060df17f1d17a78221b4498a354ee068de9d388c (patch) | |
| tree | f4397bc75c2e485d7bb5200fda110a41f7403f3d /src/soc/intel/alderlake | |
| parent | ae5bc43d3b2df7854de70756e54138c542b8a52e (diff) | |
soc/intel/alderlake/acpi: Add Kconfig options for SCM and FCM
Software Connection Manager doesn't work with Linux 5.13 or later,
resulting in TBT ports timing out. Not advertising this results
in Firmware Connection Manager being used and TBT works
correctly.
Add Kconfig options to chose between SCM (Software Connection
Manager) and FCM (Firmware Connection Manager). FCM is primary, as
it's more compatible save for ChromeOS devices as ChromeOS uses
SCM.
Linux patch:
torvalds/linux@c6da62a
c6da62a219d028de10f2e22e93a34c7ee2b88d03
Tested with StarBook Mk VI (i7-1260P).
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Change-Id: Iac31d37c0873f41f7b14e1051fe214466d1ebdd8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64561
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Diffstat (limited to 'src/soc/intel/alderlake')
| -rw-r--r-- | src/soc/intel/alderlake/Kconfig | 3 | ||||
| -rw-r--r-- | src/soc/intel/alderlake/acpi/tcss.asl | 7 |
2 files changed, 10 insertions, 0 deletions
diff --git a/src/soc/intel/alderlake/Kconfig b/src/soc/intel/alderlake/Kconfig index 9d950a71b6..1b2f6953ef 100644 --- a/src/soc/intel/alderlake/Kconfig +++ b/src/soc/intel/alderlake/Kconfig @@ -426,6 +426,9 @@ config ACPI_ADL_IPU_ES_SUPPORT help Enables ACPI entry to provide silicon type information to IPU kernel driver. +config SOFTWARE_CONNECTION_MANAGER + default y if CHROMEOS + config ALDERLAKE_ENABLE_SOC_WORKAROUND bool default y diff --git a/src/soc/intel/alderlake/acpi/tcss.asl b/src/soc/intel/alderlake/acpi/tcss.asl index 826c60740a..9edaf77110 100644 --- a/src/soc/intel/alderlake/acpi/tcss.asl +++ b/src/soc/intel/alderlake/acpi/tcss.asl @@ -161,6 +161,12 @@ Scope (\_SB) CDW1 |= UNRECOGNIZED_REVISION } Return (Arg3) +#if CONFIG(SOFTWARE_CONNECTION_MANAGER) + /* + * 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 @@ -192,6 +198,7 @@ Scope (\_SB) INTER_DOMAIN_USB4_INTERNET_PROTOCOL CDW3 = Local0 Return (Arg3) +#endif } Else { CDW1 |= UNRECOGNIZED_UUID Return (Arg3) |