From 060df17f1d17a78221b4498a354ee068de9d388c Mon Sep 17 00:00:00 2001 From: Sean Rhodes Date: Sat, 21 May 2022 10:39:27 +0100 Subject: 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 Change-Id: Iac31d37c0873f41f7b14e1051fe214466d1ebdd8 Reviewed-on: https://review.coreboot.org/c/coreboot/+/64561 Tested-by: build bot (Jenkins) Reviewed-by: Kapil Porwal Reviewed-by: Subrata Banik Reviewed-by: Martin L Roth --- src/device/Kconfig | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'src/device/Kconfig') diff --git a/src/device/Kconfig b/src/device/Kconfig index d0cce77731..1ff14a6571 100644 --- a/src/device/Kconfig +++ b/src/device/Kconfig @@ -726,6 +726,30 @@ endif # PCIEXP_HOTPLUG endif # PCIEXP_PLUGIN_SUPPORT +choice + prompt "Connection Manager" + default FIRMWARE_CONNECTION_MANAGER + help + Software Connection Manager doesn't work with Linux 5.13 or later, + resulting in TBT ports timing out. Firmware Connection Manager works + correctly. + + Linux patch: + torvalds/linux@c6da62a + c6da62a219d028de10f2e22e93a34c7ee2b88d03 + +config FIRMWARE_CONNECTION_MANAGER + bool "Firmware Connection Manager" + help + Disable SCM so that FCM can be used + +config SOFTWARE_CONNECTION_MANAGER + bool "Software Connection Manager" + help + Enable SCM so it's used instead of FCM. + +endchoice + config EARLY_PCI_BRIDGE bool "Early PCI bridge" depends on PCI -- cgit v1.2.3