[S] Change in coreboot[master]: soc/intel/cannonlake: Allow SoC to choose CAR mode (eNEM/NEM)

[Subrata Banik (Code Review)]

Subrata Banik has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/74377 )

Change subject: soc/intel/cannonlake: Allow SoC to choose CAR mode (eNEM/NEM)
......................................................................

soc/intel/cannonlake: Allow SoC to choose CAR mode (eNEM/NEM)

This patch avoids cannonlake base config to select eNEM for CAR by
default. Rather allow other SoC config to choose the applicable CAR
mode between eNEM and NEM.

CML and WHL selects eNEM whereas CFL decided to use NEM for CAR setup.

Signed-off-by: Subrata Banik 
Change-Id: Ibeaa4d53279ff9cbcd0b2ac5f2ad71925872355b
---
M src/soc/intel/cannonlake/Kconfig
1 file changed, 19 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/77/74377/1

diff --git a/src/soc/intel/cannonlake/Kconfig b/src/soc/intel/cannonlake/Kconfig
index c4855da..33025eb 100644
--- a/src/soc/intel/cannonlake/Kconfig
+++ b/src/soc/intel/cannonlake/Kconfig
@@ -8,6 +8,7 @@
    select HAVE_EXP_X86_64_SUPPORT
    select HAVE_INTEL_FSP_REPO
    select HECI_DISABLE_USING_SMM
+	select INTEL_CAR_NEM
    select SOC_INTEL_CONFIGURE_DDI_A_4_LANES

config SOC_INTEL_WHISKEYLAKE
@@ -16,6 +17,7 @@
    select FSP_USES_CB_STACK
    select HAVE_INTEL_FSP_REPO
    select HECI_DISABLE_USING_SMM
+	select INTEL_CAR_NEM_ENHANCED
    select SOC_INTEL_CONFIGURE_DDI_A_4_LANES

config SOC_INTEL_COMETLAKE
@@ -23,6 +25,7 @@
    select SOC_INTEL_CANNONLAKE_BASE
    select FSP_USES_CB_STACK
    select HAVE_INTEL_FSP_REPO
+	select INTEL_CAR_NEM_ENHANCED
    select PMC_IPC_ACPI_INTERFACE if DISABLE_HECI1_AT_PRE_BOOT
    select SOC_INTEL_CONFIGURE_DDI_A_4_LANES
    select SOC_INTEL_COMMON_BLOCK_HECI1_DISABLE_USING_PMC_IPC
@@ -71,7 +74,6 @@
    select HAVE_HYPERTHREADING
    select HAVE_SMI_HANDLER
    select IDT_IN_EVERY_STAGE
-	select INTEL_CAR_NEM_ENHANCED
    select INTEL_DESCRIPTOR_MODE_CAPABLE
    select INTEL_GMA_ACPI
    select INTEL_GMA_ADD_VBT if RUN_FSP_GOP