From 810527a4eacedfb4d63dd90d413be53c9119d024 Mon Sep 17 00:00:00 2001 From: Sumeet Pawnikar Date: Tue, 23 Jul 2019 22:02:16 +0530 Subject: [PATCH] soc/intel/cannonlake: Enable PCH Thermal Sensor configuration for S0ix Enable PCH thermal sensor for dynamic thermal shutdown for S0ix state. BUG=None BRANCH=None TEST=Verified Thermal Device (B0: D18: F0) TSPM offset 0x1c [LTT (8:0)] value is 0xFE. Change-Id: I50796bcf9e0d5a65cd7ba63fedd932967c4c1ff9 Signed-off-by: Sumeet Pawnikar Reviewed-on: https://review.coreboot.org/c/coreboot/+/34522 Reviewed-by: Furquan Shaikh Reviewed-by: Subrata Banik Tested-by: build bot (Jenkins) --- src/soc/intel/cannonlake/Kconfig | 1 + src/soc/intel/cannonlake/finalize.c | 11 +++++++++++ 2 files changed, 12 insertions(+) diff --git a/src/soc/intel/cannonlake/Kconfig b/src/soc/intel/cannonlake/Kconfig index f859cd5af8..862b2e6908 100644 --- a/src/soc/intel/cannonlake/Kconfig +++ b/src/soc/intel/cannonlake/Kconfig @@ -97,6 +97,7 @@ config CPU_SPECIFIC_OPTIONS select SOC_INTEL_COMMON_BLOCK_XHCI_ELOG select SOC_INTEL_COMMON_BLOCK_SMM select SOC_INTEL_COMMON_BLOCK_SMM_IO_TRAP + select SOC_INTEL_COMMON_BLOCK_THERMAL select SOC_INTEL_COMMON_PCH_BASE select SOC_INTEL_COMMON_NHLT select SOC_INTEL_COMMON_RESET diff --git a/src/soc/intel/cannonlake/finalize.c b/src/soc/intel/cannonlake/finalize.c index 6083cab010..c99653b75a 100644 --- a/src/soc/intel/cannonlake/finalize.c +++ b/src/soc/intel/cannonlake/finalize.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include #include @@ -62,6 +63,16 @@ static void pch_finalize(void) uint8_t reg8; tco_lockdown(); + + /* + * Set low maximum temp threshold value used for dynamic thermal sensor + * shutdown consideration. + * + * If Dynamic Thermal Shutdown is enabled then PMC logic shuts down the + * thermal sensor when CPU is in a C-state and DTS Temp <= LTT. + */ + pch_thermal_configuration(); + /* * Disable ACPI PM timer based on dt policy *