diff options
| author | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-05-02 20:02:39 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-05-02 20:02:39 +0000 |
| commit | 836c350061600e6cde14b73417b9d073b00b0f69 (patch) | |
| tree | 2e2a46ab3837b1444dd1639aea9e0f08cc4e1986 /ArmPkg/Library/ArmLib/ArmV7 | |
| parent | 7fffeef9bece37fe48341fcf47edb474f954e690 (diff) | |
| download | edk2-platforms-836c350061600e6cde14b73417b9d073b00b0f69.tar.xz | |
ArmPkg/ArmLib: Added new functions to access ARM coprocessors
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
Diffstat (limited to 'ArmPkg/Library/ArmLib/ArmV7')
| -rw-r--r-- | ArmPkg/Library/ArmLib/ArmV7/ArmV7Support.S | 6 | ||||
| -rw-r--r-- | ArmPkg/Library/ArmLib/ArmV7/ArmV7Support.asm | 6 |
2 files changed, 12 insertions, 0 deletions
diff --git a/ArmPkg/Library/ArmLib/ArmV7/ArmV7Support.S b/ArmPkg/Library/ArmLib/ArmV7/ArmV7Support.S index 5ac3552403..910e50e401 100644 --- a/ArmPkg/Library/ArmLib/ArmV7/ArmV7Support.S +++ b/ArmPkg/Library/ArmLib/ArmV7/ArmV7Support.S @@ -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
diff --git a/ArmPkg/Library/ArmLib/ArmV7/ArmV7Support.asm b/ArmPkg/Library/ArmLib/ArmV7/ArmV7Support.asm index 8fedcdba97..8035400599 100644 --- a/ArmPkg/Library/ArmLib/ArmV7/ArmV7Support.asm +++ b/ArmPkg/Library/ArmLib/ArmV7/ArmV7Support.asm @@ -39,6 +39,7 @@ EXPORT ArmDataMemoryBarrier
EXPORT ArmDataSyncronizationBarrier
EXPORT ArmInstructionSynchronizationBarrier
+ EXPORT ArmReadVBar
EXPORT ArmWriteVBar
EXPORT ArmEnableVFP
EXPORT ArmCallWFI
@@ -324,6 +325,11 @@ ArmInstructionSynchronizationBarrier isb
bx LR
+ArmReadVBar
+ // Set the Address of the Vector Table in the VBAR register
+ mrc p15, 0, r0, c12, c0, 0
+ bx lr
+
ArmWriteVBar
// Set the Address of the Vector Table in the VBAR register
mcr p15, 0, r0, c12, c0, 0
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