809b7513a2
tsc_freq_mhz() had a static table of Intel CPU families and crystal clock, but it is possible to calculate the crystal clock speed dynamically, and this is preferred over hardcoded table. On SKL/KBL/CML CPUID.15h.ecx = nominal core crystal clock = 0 Hz hence we had to use static table to calculate crystal clock. Recommendation is to make use of CPUID.16h where crystal clock frequency was not reported by CPUID.15h to calculate the crystal clock. BUG=b:139798422, b:129839774 TEST=Able to build and boot KBL/CML/ICL. Change-Id: If660a4b8d12e54b39252bce62bcc0ffcc967f5da Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35148 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: V Sowmya <v.sowmya@intel.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> |
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