soc/intel/icelake: Make use of common thermal code for ICL

This patch ports CB:34522 and CB:33147 changes from CNL to ICL.

TEST=Build and boot dragonegg

Change-Id: I0b983005f16fe182e634eac63fef4f6b22197a85
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34649
Reviewed-by: Aamir Bohra <aamir.bohra@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/dragonegg/variants/baseboard/devicetree.cb

@@ -148,6 +148,7 @@ chip soc/intel/icelake
 	#|                   | required to set up a BAR  |
 	#|                   | for TPM communication     |
 	#|                   | before memory is up       |
+	#| pch_thermal_trip  | PCH Trip Temperature      |
 	#+-------------------+---------------------------+
 
 	register "common_soc_config" = "{
@@ -165,6 +166,7 @@ chip soc/intel/icelake
 				.sda_hold = 36,
 			}
 		},
+		.pch_thermal_trip = 77,
 	}"
 
 	# GPIO PM programming
@@ -181,7 +183,7 @@ chip soc/intel/icelake
 		device pci 00.0 on  end # Host Bridge
 		device pci 02.0 on  end # Integrated Graphics Device
 		device pci 04.0 off  end # SA Thermal device
-		device pci 12.0 off  end # Thermal Subsystem
+		device pci 12.0 on  end # Thermal Subsystem
 		device pci 12.5 off end # UFS SCS
 		device pci 12.6 off end # GSPI #2
 		device pci 14.0 on

src/soc/intel/icelake/Kconfig

@@ -51,6 +51,7 @@ config CPU_SPECIFIC_OPTIONS
 	select SOC_INTEL_COMMON_BLOCK_SA
 	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_RESET
 	select SSE2

src/soc/intel/icelake/finalize.c

@@ -23,6 +23,7 @@
 #include <intelblocks/lpc_lib.h>
 #include <intelblocks/pcr.h>
 #include <intelblocks/tco.h>
+#include <intelblocks/thermal.h>
 #include <reg_script.h>
 #include <spi-generic.h>
 #include <soc/p2sb.h>
@@ -62,6 +63,15 @@ static void pch_finalize(void)
 	/* TCO Lock down */
 	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
 	 *