ArmPkg: Configure TTBCR register

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

diff --git a/ArmPkg/Library/ArmLib/Common/Arm/ArmLibSupport.S b/ArmPkg/Library/ArmLib/Common/Arm/ArmLibSupport.S
index 085f08bfda8cc425f6e43f3ee7a49e191db8f914..5d1194e7e219ea6dec4b69191383ca693dc1c635 100644 (file)
--- a/ArmPkg/Library/ArmLib/Common/Arm/ArmLibSupport.S
+++ b/ArmPkg/Library/ArmLib/Common/Arm/ArmLibSupport.S
@@ -1,7 +1,7 @@
 #------------------------------------------------------------------------------\r
 #\r
 # Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
-# Copyright (c) 2011 - 2014, ARM Limited. All rights reserved.\r
+# Copyright (c) 2011 - 2016, ARM Limited. All rights reserved.\r
 #\r
 # This program and the accompanying materials\r
 # are licensed and made available under the terms and conditions of the BSD License\r
@@ -23,6 +23,7 @@ GCC_ASM_EXPORT(ArmGetInterruptState)
 GCC_ASM_EXPORT(ArmGetFiqState)\r
 GCC_ASM_EXPORT(ArmGetTTBR0BaseAddress)\r
 GCC_ASM_EXPORT(ArmSetTTBR0)\r
+GCC_ASM_EXPORT(ArmSetTTBCR)\r
 GCC_ASM_EXPORT(ArmSetDomainAccessControl)\r
 GCC_ASM_EXPORT(CPSRMaskInsert)\r
 GCC_ASM_EXPORT(CPSRRead)\r
@@ -111,6 +112,11 @@ ASM_PFX(ArmSetTTBR0):
   isb\r
   bx      lr\r
 \r
+ASM_PFX(ArmSetTTBCR):\r
+  mcr     p15, 0, r0, c2, c0, 2\r
+  isb\r
+  bx      lr\r
+\r
 ASM_PFX(ArmGetTTBR0BaseAddress):\r
   mrc     p15,0,r0,c2,c0,0\r
   LoadConstantToReg(0xFFFFC000, r1)\r