commit f6d46e296060507bc8d02fadb8ebd591fc9aefca
author Ard Biesheuvel <ard.biesheuvel@linaro.org> Mon Feb 16 10:27:02 2015 +0000
committer oliviermartin <oliviermartin@Edk2> Mon Feb 16 10:27:02 2015 +0000
tree 25063df60ca8b6ec0d726d350fcd2baa7584e63b
parent 41fb5d4634c17c042e0a3b2be0e8db85d2a083ad

ArmPkg/ArmGic: enable ARE bit before driving GICv3 in native mode

The GICv3 driver must use native mode to drive a GICv3 due to
the fact that v2 compatibility is optional in the v3 spec.
However, if v2 compatibility is implemented, it is the default
and needs to be disabled first by setting the Affinity Routing
Enable (ARE) bit.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Olivier Martin <olivier.martin@arm.com>

[added PCD that allows forcing the GICv3 driver to drive the GIC in v2 mode]
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
Tested-by: Ard Biesheuvel <ard@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16875 6f19259b-4bc3-4df7-8a09-765794883524

ArmPkg/ArmPkg.dec

diff --git a/ArmPkg/ArmPkg.dec b/ArmPkg/ArmPkg.dec
index 75960ed..ced3929 100644
--- a/ArmPkg/ArmPkg.dec
+++ b/ArmPkg/ArmPkg.dec
@@ -69,6 +69,9 @@
   # Linux (instead of PSCI)

   gArmTokenSpaceGuid.PcdArmLinuxSpinTable|FALSE|BOOLEAN|0x00000033

 

+  # Define if the GICv3 controller should use the GICv2 legacy

+  gArmTokenSpaceGuid.PcdArmGicV3WithV2Legacy|FALSE|BOOLEAN|0x00000042

+

 [PcdsFixedAtBuild.common]

   gArmTokenSpaceGuid.PcdTrustzoneSupport|FALSE|BOOLEAN|0x00000006