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From: "Rebecca Cran" <quic_rcran@quicinc.com>
To: <devel@edk2.groups.io>,
	Ard Biesheuvel <ardb+tianocore@kernel.org>,
	"Thomas Abraham" <thomas.abraham@arm.com>,
	Sami Mujawar <sami.mujawar@arm.com>
Cc: Rebecca Cran <rebecca@quicinc.com>
Subject: [PATCH edk2-platforms 2/3] Platform/ARM/JunoPkg: Override PcdTimerPeriod to be 10000
Date: Tue, 29 Nov 2022 06:53:57 -0700	[thread overview]
Message-ID: <20221129135358.136555-3-rebecca@quicinc.com> (raw)
In-Reply-To: <20221129135358.136555-1-rebecca@quicinc.com>

The PCD PcdTimerPeriod is used in TimerDxe to calculate how many ticks
to wait between timer interrupts. The default value of 100000 results
in waiting 10 ms, while the driver wants interrupts to occur every 1ms.

Override the value of PcdTimerPeriod in ArmJuno.dsc to be 10000.

Signed-off-by: Rebecca Cran <rebecca@quicinc.com>
---
 Platform/ARM/JunoPkg/ArmJuno.dsc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Platform/ARM/JunoPkg/ArmJuno.dsc b/Platform/ARM/JunoPkg/ArmJuno.dsc
index 9cde4c862651..9b63a8914f03 100644
--- a/Platform/ARM/JunoPkg/ArmJuno.dsc
+++ b/Platform/ARM/JunoPkg/ArmJuno.dsc
@@ -189,6 +189,7 @@ [PcdsFixedAtBuild.common]
   # ARM Architectural Timer Frequency
   #
   gArmTokenSpaceGuid.PcdArmArchTimerFreqInHz|50000000
+  gEmbeddedTokenSpaceGuid.PcdTimerPeriod|10000
 
   gEfiMdeModulePkgTokenSpaceGuid.PcdResetOnMemoryTypeInformationChange|FALSE
 
-- 
2.30.2


  parent reply	other threads:[~2022-11-29 13:54 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-29 13:53 [PATCH edk2-platforms 0/3] Platform/ARM/JunoPkg: Timer fixes Rebecca Cran
2022-11-29 13:53 ` [PATCH edk2-platforms 1/3] Platform/ARM/JunoPkg: Switch to MdeModulePkg/Universal/Metronome driver Rebecca Cran
2022-11-29 13:53 ` Rebecca Cran [this message]
2022-12-05  9:22   ` [edk2-devel] [PATCH edk2-platforms 2/3] Platform/ARM/JunoPkg: Override PcdTimerPeriod to be 10000 PierreGondois
2022-12-05 11:48     ` Rebecca Cran
2022-11-29 13:53 ` [PATCH edk2-platforms 3/3] Platform/ARM/JunoPkg: Set PcdArmArchTimerFreqInHz to 0 to read from CNTFRQ_EL0 Rebecca Cran

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