Quoting Rebecca Cran (2022-10-07 13:38:05)
> Copy code from PrePi to PrePeiCore that prints the firmware version
> and build date early in the boot process.
>
> Signed-off-by: Rebecca Cran <rebe...@quicinc.com>
> ---
> ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf | 3 +++
> ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf | 3 +++
> ArmPlatformPkg/PrePeiCore/PrePeiCore.c | 14 ++++++++++++++
> 3 files changed, 20 insertions(+)
>
> diff --git a/ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf
> b/ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf
> index a5b4722459d1..4a3112b58dcb 100644
> --- a/ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf
> +++ b/ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf
> @@ -54,6 +54,9 @@ [Ppis]
> gEfiTemporaryRamSupportPpiGuid
> gArmMpCoreInfoPpiGuid
>
> +[Pcd]
> + gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVersionString
> +
> [FeaturePcd]
> gArmPlatformTokenSpaceGuid.PcdSendSgiToBringUpSecondaryCores
>
> diff --git a/ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf
> b/ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf
> index 466a2b01c384..ab5bf1dac2d8 100644
> --- a/ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf
> +++ b/ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf
> @@ -52,6 +52,9 @@ [LibraryClasses]
> [Ppis]
> gEfiTemporaryRamSupportPpiGuid
>
> +[Pcd]
> + gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVersionString
> +
> [FeaturePcd]
> gArmPlatformTokenSpaceGuid.PcdSendSgiToBringUpSecondaryCores
>
> diff --git a/ArmPlatformPkg/PrePeiCore/PrePeiCore.c
> b/ArmPlatformPkg/PrePeiCore/PrePeiCore.c
> index 9c4b25df953d..49df21aca92a 100644
> --- a/ArmPlatformPkg/PrePeiCore/PrePeiCore.c
> +++ b/ArmPlatformPkg/PrePeiCore/PrePeiCore.c
> @@ -11,6 +11,8 @@
> #include <Library/CacheMaintenanceLib.h>
> #include <Library/DebugAgentLib.h>
> #include <Library/ArmLib.h>
> +#include <Library/PrintLib.h>
> +#include <Library/SerialPortLib.h>
>
> #include "PrePeiCore.h"
>
> @@ -58,6 +60,9 @@ CEntryPoint (
> IN EFI_PEI_CORE_ENTRY_POINT PeiCoreEntryPoint
> )
> {
> + CHAR8 Buffer[100];
> + UINTN CharCount;
> +
> // Data Cache enabled on Primary core when MMU is enabled.
> ArmDisableDataCache ();
> // Invalidate instruction cache
> @@ -93,6 +98,15 @@ CEntryPoint (
> // Invoke "ProcessLibraryConstructorList" to have all library
> constructors
> // called.
> ProcessLibraryConstructorList ();
> + CharCount = AsciiSPrint (
> + Buffer,
> + sizeof (Buffer),
> + "UEFI firmware (version %s built at %a on %a)\n\r",
> + (CHAR16 *)PcdGetPtr (PcdFirmwareVersionString),
> + __TIME__,
> + __DATE__
> + );
> + SerialPortWrite ((UINT8 *)Buffer, CharCount);
>
> // Initialize the Debug Agent for Source Level Debugging
> InitializeDebugAgent (DEBUG_AGENT_INIT_POSTMEM_SEC, NULL, NULL);
> --
> 2.30.2
>
Hi Rebecca,
thank you!
Tested-by: Oliver Steffen <ostef...@redhat.com>
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