intel/socket_mPGA604: Enable TSC_CONSTANT_RATE

We can use intel/common implementation for tsc_freq_mhz().

Change-Id: I728732896ad61465fcf0f5b25a6bafd23bca235e
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34199
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/cpu/intel/model_f2x/Makefile.inc

@@ -1,3 +1,5 @@
+subdirs-y += ../common
+
 ramstage-y += model_f2x_init.c
 
 cpu_microcode_bins += $(wildcard 3rdparty/intel-microcode/intel-ucode/0f-02-*)

src/cpu/intel/socket_mPGA604/Kconfig

@@ -9,9 +9,12 @@ config SOCKET_SPECIFIC_OPTIONS # dummy
 	select MMX
 	select SSE
 	select UDELAY_TSC
+	select TSC_CONSTANT_RATE
 	select TSC_MONOTONIC_TIMER
 	select SIPI_VECTOR_IN_ROM
 	select C_ENVIRONMENT_BOOTBLOCK
+	select CPU_INTEL_COMMON
+	select CPU_INTEL_COMMON_TIMEBASE
 
 # mPGA604 are usually Intel Netburst CPUs which should have SSE2
 # but the ramtest.c code on the Dell S1850 seems to choke on