ArmPkg: fix ArmWriteCntkCtl simple code bug

[mirror_edk2.git] / ArmPkg / Library / ArmLib / AArch64 / AArch64ArchTimerSupport.S

diff --git a/ArmPkg/Library/ArmLib/AArch64/AArch64ArchTimerSupport.S b/ArmPkg/Library/ArmLib/AArch64/AArch64ArchTimerSupport.S
index 1ac01086aa3a797acac8257cec351451112f40fb..3944d8bcb4f11ea284b2582ce05f1eef3549a91b 100644 (file)
--- a/ArmPkg/Library/ArmLib/AArch64/AArch64ArchTimerSupport.S
+++ b/ArmPkg/Library/ArmLib/AArch64/AArch64ArchTimerSupport.S
@@ -58,7 +58,7 @@ ASM_PFX(ArmReadCntkCtl):
 \r
 \r
 ASM_PFX(ArmWriteCntkCtl):\r
-  mrs   x0, cntkctl_el1          // Write to CNTK_CTL (Timer PL1 Control Register)\r
+  msr   cntkctl_el1, x0          // Write to CNTK_CTL (Timer PL1 Control Register)\r
   ret\r
 \r
 \r