From: Michael Kubacki <michael.kubacki@microsoft.com>

REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3543

Adds new PCDs to allow the duty width and duty offset values in the
FADT to be customized during package integration.

Cc: Chasel Chiu <chasel.chiu@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Eric Dong <eric.dong@intel.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
---
 Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
index e38617ce20fd..22f371ee1ec8 100644
--- a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
+++ b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
@@ -115,6 +115,21 @@ [PcdsFixedAtBuild, PcdsPatchableInModule]
   gMinPlatformPkgTokenSpaceGuid.PcdFadtPreferredPmProfile|0x02|UINT8|0x90000025
   gMinPlatformPkgTokenSpaceGuid.PcdFadtIaPcBootArch|0x0001|UINT16|0x90000026
   gMinPlatformPkgTokenSpaceGuid.PcdFadtFlags|0x000086A5|UINT32|0x90000027
+  #
+  # FADT Duty Offset - The zero-based index of where the processor's duty cycle
+  # setting is within the processor's P_CNT register.
+  #
+  gMinPlatformPkgTokenSpaceGuid.PcdFadtDutyOffset|0x01|UINT8|0x90000028
+  #
+  # FADT Duty Width - The bit width of the processor's duty cycle setting value in the P_CNT
+  # register. Each processor's duty cycle setting allows the software to select a nominal
+  # processor frequency below its absolute frequency. A duty width value of zero indicates
+  # the processor continuously runs at its base frequency.
+  #
+  # For more details about how the frequency is calculated, refer to the Fixed ACPI Description
+  # Table (FADT) section of the ACPI Specification.
+  #
+  gMinPlatformPkgTokenSpaceGuid.PcdFadtDutyWidth|0x00|UINT8|0x90000029
 
   gMinPlatformPkgTokenSpaceGuid.PcdPlatformEfiAcpiReclaimMemorySize|0x65|UINT32|0x20000500
   gMinPlatformPkgTokenSpaceGuid.PcdPlatformEfiAcpiNvsMemorySize|0x30|UINT32|0x20000501
-- 
2.28.0.windows.1



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