Meenakshi,
Are you using any EL3 firmware with GICv3 support in it?
Is "PcdArmGicV3WithV2Legacy" being used?
Is the ARM Architectural Timer working for you? (If this works, keyboard input
work fine.)
I think this is the same problem I ran into before, where the interrupt for the
arm architecture timer was not triggering.
The Affinity needs to be set properly for GICv3 support to work properly.
GICD_CTLR.ARE_S bit. This enables affinity routing for the secure and the
normal worlds. When secure world(EL3) is operating in the legacy mode, UEFI is
responsible for enabling affinity routing for the normal world. There is a bug
in the UEFI code that programs the GICD_CTLR.ARE_NS bit. The GICv3
specification clearly says that changing the ARE_NS from 1 to 0 is
UNPREDICATABLE. The patch is attached.
Will be sending this patch out for Review to this list soon. Please let me know
whether this resolves this for you.
diff --git a/ArmPkg/Drivers/ArmGic/ArmGicNonSecLib.c
b/ArmPkg/Drivers/ArmGic/ArmGicNonSecLib.c
index 3157243..f90391b 100644
--- a/ArmPkg/Drivers/ArmGic/ArmGicNonSecLib.c
+++ b/ArmPkg/Drivers/ArmGic/ArmGicNonSecLib.c
@@ -33,9 +33,9 @@ ArmGicEnableDistributor (
MmioWrite32 (GicDistributorBase + ARM_GIC_ICDDCR, 0x1);
} else {
if (MmioRead32 (GicDistributorBase + ARM_GIC_ICDDCR) & ARM_GIC_ICDDCR_ARE)
{
- MmioWrite32 (GicDistributorBase + ARM_GIC_ICDDCR, 0x2);
+ MmioOr32 (GicDistributorBase + ARM_GIC_ICDDCR, 0x2);
} else {
- MmioWrite32 (GicDistributorBase + ARM_GIC_ICDDCR, 0x1);
+ MmioOr32 (GicDistributorBase + ARM_GIC_ICDDCR, 0x1);
}
}
}
Thanks,
Supreeth
-----Original Message-----
From: edk2-devel [mailto:[email protected]] On Behalf Of
Meenakshi Aggarwal
Sent: Sunday, November 29, 2015 9:53 PM
To: [email protected]
Subject: [edk2] GICv3 support
Hi,
I have added support of GICv3 in my board package by defining
gArmTokenSpaceGuid.PcdGicDistributorBase|0x6000000
gArmTokenSpaceGuid.PcdGicRedistributorsBase|0x6100000
But still I am unable to take input from keyboard.
Do I need to do some more settings for this.
Kindly reply.
Thanks & Regards,
Meenakshi
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