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ArmPkg/ArmLib: Added new functions to access ARM coprocessors

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Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13253 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
oliviermartin
2012-05-02 20:02:39 +00:00
parent 7fffeef9be
commit 836c350061
8 changed files with 125 additions and 14 deletions
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6
ArmPkg/Library/ArmLib/ArmV7/ArmV7Support.S
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@@ -42,6 +42,7 @@ GCC_ASM_EXPORT (ArmV7PerformPoUDataCacheOperation)
GCC_ASM_EXPORT (ArmDataMemoryBarrier)
GCC_ASM_EXPORT (ArmDataSyncronizationBarrier)
GCC_ASM_EXPORT (ArmInstructionSynchronizationBarrier)
GCC_ASM_EXPORT (ArmReadVBar)
GCC_ASM_EXPORT (ArmWriteVBar)
GCC_ASM_EXPORT (ArmEnableVFP)
GCC_ASM_EXPORT (ArmCallWFI)
@@ -330,6 +331,11 @@ ASM_PFX(ArmInstructionSynchronizationBarrier):
isb
bx LR
ASM_PFX(ArmReadVBar):
# Set the Address of the Vector Table in the VBAR register
mrc p15, 0, r0, c12, c0, 0
bx lr
ASM_PFX(ArmWriteVBar):
# Set the Address of the Vector Table in the VBAR register
mcr p15, 0, r0, c12, c0, 0