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Diffstat (limited to 'ArmPkg/Library/ArmLib/AArch64/AArch64Support.S')
-rw-r--r--ArmPkg/Library/ArmLib/AArch64/AArch64Support.S6
1 files changed, 5 insertions, 1 deletions
diff --git a/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S b/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S
index 29251c9..5901ffa 100644
--- a/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S
+++ b/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S
@@ -1,7 +1,7 @@
#------------------------------------------------------------------------------
#
# Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
-# Copyright (c) 2011 - 2013, ARM Limited. All rights reserved.
+# Copyright (c) 2011 - 2014, ARM Limited. All rights reserved.
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
@@ -50,6 +50,7 @@ GCC_ASM_EXPORT (ArmEnableVFP)
GCC_ASM_EXPORT (ArmCallWFI)
GCC_ASM_EXPORT (ArmInvalidateInstructionAndDataTlb)
GCC_ASM_EXPORT (ArmReadMpidr)
+GCC_ASM_EXPORT (ArmReadMidr)
GCC_ASM_EXPORT (ArmReadTpidrurw)
GCC_ASM_EXPORT (ArmWriteTpidrurw)
GCC_ASM_EXPORT (ArmIsArchTimerImplemented)
@@ -457,6 +458,9 @@ ASM_PFX(ArmReadMpidr):
mrs x0, mpidr_el1 // read EL1 MPIDR
ret
+ASM_PFX(ArmReadMidr):
+ mrs x0, midr_el1 // Read Main ID Register
+ ret
// Keep old function names for C compatibilty for now. Change later?
ASM_PFX(ArmReadTpidrurw):