soc/intel/common: add TCC activation functionality

This enables to configure the Thermal Control Circuit (TCC) activation
value to new value as tcc_offset in degree Celcius. It prevents any
abrupt thermal shutdown while running heavy workload. This helps to
take early thermal throttling action before CPU temperature reaches
maximum operating temperature TjMax value. Also, cleanup local functions
from previous intel soc specific code base like for apollolake, broadwell,
skylake and cannonlake.

BUG=None
BRANCH=None
TEST=Built for volteer platform and verified the MSR value.

Change-Id: I37dd878902b080602d70c5c3c906820613ea14a5
Signed-off-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41855
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/soc/intel/xeon_sp/skx/chip.h b/src/soc/intel/xeon_sp/skx/chip.h
index c7f19ec811..440fb40f3d 100644
--- a/src/soc/intel/xeon_sp/skx/chip.h
+++ b/src/soc/intel/xeon_sp/skx/chip.h
@@ -69,6 +69,9 @@ struct soc_intel_xeon_sp_skx_config {
 	uint32_t gen2_dec;
 	uint32_t gen3_dec;
 	uint32_t gen4_dec;
+
+	/* TCC activation offset */
+	uint32_t tcc_offset;
 };
 
 typedef struct soc_intel_xeon_sp_skx_config config_t;