ArmPkg/Library/ArmLib: add ArmWriteSctlr

[mirror_edk2.git] / ArmPkg / Library / ArmLib / Arm / ArmLibSupport.S

diff --git a/ArmPkg/Library/ArmLib/Arm/ArmLibSupport.S b/ArmPkg/Library/ArmLib/Arm/ArmLibSupport.S
index a0b5ed500298f9ccfdde3882040647ad212f36cb..149b57e059eeabe46929613b732e74bc4a470a8d 100644 (file)
--- a/ArmPkg/Library/ArmLib/Arm/ArmLibSupport.S
+++ b/ArmPkg/Library/ArmLib/Arm/ArmLibSupport.S
@@ -153,6 +153,10 @@ ASM_FUNC(ArmReadSctlr)
   mrc     p15, 0, r0, c1, c0, 0      @ Read SCTLR into R0 (Read control register configuration data)\r
   bx      lr\r
 \r
+ASM_FUNC(ArmWriteSctlr)\r
+  mcr     p15, 0, r0, c1, c0, 0\r
+  bx      lr\r
+\r
 ASM_FUNC(ArmReadCpuActlr)\r
   mrc     p15, 0, r0, c1, c0, 1\r
   bx      lr\r