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PcAtChipsetPkg: Add PCD for RTC default year 

Add PcdRtcDefaultYear to specify the default year to use when
the RTC is in an invalid state. Make sure PcdRtcDefaultYear is
>= PcdMinimalValidYear and <= PcdMaximalValidYear.  Set the
default value for this PCD to PcdMinimalValidYear to preserve
the existing behavior. A platform DSC file can override this
default value setting.

Cc: Ray Ni <ray.ni@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
This commit is contained in:
Michael D Kinney 2023-03-25 19:41:38 -07:00 committed by mergify[bot]
parent b1db096575
commit d55d73152e
4 changed files with 13 additions and 2 deletions
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6
PcAtChipsetPkg/PcAtChipsetPkg.dec
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@ -76,6 +76,12 @@
# @Expression 0x80000001 | gPcAtChipsetPkgTokenSpaceGuid.PcdMaximalValidYear < gPcAtChipsetPkgTokenSpaceGuid.PcdMinimalValidYear + 100
gPcAtChipsetPkgTokenSpaceGuid.PcdMaximalValidYear|2097|UINT16|0x0000000E
## This PCD specifies the RTC default year when the RTC is in an invalid state.
# @Prompt Default year in RTC.
# @Expression 0x80000001 | gPcAtChipsetPkgTokenSpaceGuid.PcdRtcDefaultYear >= gPcAtChipsetPkgTokenSpaceGuid.PcdMinimalValidYear
# @Expression 0x80000001 | gPcAtChipsetPkgTokenSpaceGuid.PcdRtcDefaultYear <= gPcAtChipsetPkgTokenSpaceGuid.PcdMaximalValidYear
gPcAtChipsetPkgTokenSpaceGuid.PcdRtcDefaultYear|gPcAtChipsetPkgTokenSpaceGuid.PcdMinimalValidYear|UINT16|0x0000000F
## Specifies RTC Index Register address in MMIO space.
# @Prompt RTC Index Register address
gPcAtChipsetPkgTokenSpaceGuid.PcdRtcIndexRegister64|0x0|UINT64|0x00000022

4
PcAtChipsetPkg/PcAtChipsetPkg.uni
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@ -79,6 +79,10 @@
#string STR_gPcAtChipsetPkgTokenSpaceGuid_PcdMaximalValidYear_HELP #language en-US "This PCD specifies the maximal valid year in RTC."
#string STR_gPcAtChipsetPkgTokenSpaceGuid_PcdRtcDefaultYear_PROMPT #language en-US "Default year in RTC"
#string STR_gPcAtChipsetPkgTokenSpaceGuid_PcdRtcDefaultYear_HELP #language en-US "This PCD specifies the RTC default year when the RTC is in an invalid state."
#string STR_gPcAtChipsetPkgTokenSpaceGuid_PcdAcpiIoPortBaseAddressMask_PROMPT #language en-US "ACPI IO Port Base Address Mask"
#string STR_gPcAtChipsetPkgTokenSpaceGuid_PcdAcpiIoPortBaseAddressMask_HELP #language en-US "Defines the bit mask to retrieve ACPI IO Port Base Address."

4
PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c
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@ -317,7 +317,7 @@ PcRtcInit (
Time.Hour = RTC_INIT_HOUR;
Time.Day = RTC_INIT_DAY;
Time.Month = RTC_INIT_MONTH;
Time.Year = PcdGet16 (PcdMinimalValidYear);
Time.Year = PcdGet16 (PcdRtcDefaultYear);
Time.Nanosecond = 0;
Time.TimeZone = EFI_UNSPECIFIED_TIMEZONE;
Time.Daylight = 0;
@ -357,7 +357,7 @@ PcRtcInit (
Time.Hour = RTC_INIT_HOUR;
Time.Day = RTC_INIT_DAY;
Time.Month = RTC_INIT_MONTH;
Time.Year = PcdGet16 (PcdMinimalValidYear);
Time.Year = PcdGet16 (PcdRtcDefaultYear);
Time.Nanosecond = 0;
Time.TimeZone = Global->SavedTimeZone;
Time.Daylight = Global->Daylight;

1
PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcatRealTimeClockRuntimeDxe.inf
View File

@ -76,6 +76,7 @@
gPcAtChipsetPkgTokenSpaceGuid.PcdRealTimeClockUpdateTimeout ## CONSUMES
gPcAtChipsetPkgTokenSpaceGuid.PcdMinimalValidYear ## CONSUMES
gPcAtChipsetPkgTokenSpaceGuid.PcdMaximalValidYear ## CONSUMES
gPcAtChipsetPkgTokenSpaceGuid.PcdRtcDefaultYear ## CONSUMES
gPcAtChipsetPkgTokenSpaceGuid.PcdRtcIndexRegister ## CONSUMES
gPcAtChipsetPkgTokenSpaceGuid.PcdRtcTargetRegister ## CONSUMES
gPcAtChipsetPkgTokenSpaceGuid.PcdRtcIndexRegister64 ## CONSUMES