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| author | Heyi Guo <heyi.guo@linaro.org> | 2015-05-13 18:21:58 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@Edk2> | 2015-05-13 18:21:58 +0000 |
| commit | c37e542ba01bfe3cb3932cfdced86d4517e21950 (patch) | |
| tree | e058831115fd7301ca519d5004e77b79a4a29075 | |
| parent | b51cffe12fbea45a1112bffea40a63efc7e79982 (diff) | |
| download | edk2-c37e542ba01bfe3cb3932cfdced86d4517e21950.tar.gz edk2-c37e542ba01bfe3cb3932cfdced86d4517e21950.tar.bz2 edk2-c37e542ba01bfe3cb3932cfdced86d4517e21950.zip | |
ArmPkg: fix ArmWriteCntkCtl simple code bug
We need to use msr instruction to write system register. It seems the
code was simply copied from ArmReadCntkCtl.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Heyi Guo <heyi.guo@linaro.org>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17440 6f19259b-4bc3-4df7-8a09-765794883524
| -rw-r--r-- | ArmPkg/Library/ArmLib/AArch64/AArch64ArchTimerSupport.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/ArmPkg/Library/ArmLib/AArch64/AArch64ArchTimerSupport.S b/ArmPkg/Library/ArmLib/AArch64/AArch64ArchTimerSupport.S index 1ac01086aa..3944d8bcb4 100644 --- a/ArmPkg/Library/ArmLib/AArch64/AArch64ArchTimerSupport.S +++ b/ArmPkg/Library/ArmLib/AArch64/AArch64ArchTimerSupport.S @@ -58,7 +58,7 @@ ASM_PFX(ArmReadCntkCtl): ASM_PFX(ArmWriteCntkCtl):
- mrs x0, cntkctl_el1 // Write to CNTK_CTL (Timer PL1 Control Register)
+ msr cntkctl_el1, x0 // Write to CNTK_CTL (Timer PL1 Control Register)
ret
|