soc/amd: introduce and use get_uvolts_from_vid for SVI2 and SVI3

Instead of implementing the conversion from the raw serial voltage ID
value to the voltage in microvolts in every SoC, introduce the
SOC_AMD_COMMON_BLOCK_SVI[2,3] Kconfig options for the SoC to select the
correct version, implement get_uvolts_from_vid for both cases and only
include the selected implementation in the build.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I344641217e6e4654fd281d434b88e346e0482f57
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73995
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/soc/amd/common/block/include/amdblocks/cpu.h b/src/soc/amd/common/block/include/amdblocks/cpu.h
index 3501b22104..cbce028631 100644
--- a/src/soc/amd/common/block/include/amdblocks/cpu.h
+++ b/src/soc/amd/common/block/include/amdblocks/cpu.h
@@ -16,6 +16,7 @@ void write_resume_eip(void);
 
 union pstate_msr; /* proper definition is in soc/msr.h */
 
+uint32_t get_uvolts_from_vid(uint16_t core_vid);
 uint32_t get_pstate_core_freq(union pstate_msr pstate_reg);
 uint32_t get_pstate_core_power(union pstate_msr pstate_reg);
 const acpi_cstate_t *get_cstate_config_data(size_t *size);