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ArmVExpressPkg: use PSCI for system reset only on AARCH64 platforms 

The PSCI specification covers both ARM and AARCH64, however, the
ARM Trusted Firmware (ATF) reference implementation is only available
for AARCH64, and PSCI firmware is not widely available for ARM platforms.

So use the EfiResetSystemLib implementation that uses PSCI calls only
on AARCH64, and revert to the Versatile Express-specific system register
interface (which is only available during boot time) on ARM platforms.

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



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17927 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Ard Biesheuvel 2015-07-10 15:10:00 +00:00 committed by oliviermartin
parent c9b378b666
commit 8134dc18d4
1 changed files with 1 additions and 0 deletions
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1
ArmPlatformPkg/ArmVExpressPkg/ArmVExpress.dsc.inc
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@ -223,6 +223,7 @@
CapsuleLib|MdeModulePkg/Library/DxeCapsuleLibNull/DxeCapsuleLibNull.inf
ArmPlatformSysConfigLib|ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressSysConfigRuntimeLib/ArmVExpressSysConfigRuntimeLib.inf
[LibraryClasses.AARCH64.DXE_RUNTIME_DRIVER]
#
# PSCI support in EL3 may not be available if we are not running under a PSCI
# compliant secure firmware, but since the default VExpress EfiResetSystemLib