ArmPkg/ArmLib: Added ArmReadMidr()

[mirror_edk2.git] / ArmPkg / Library / ArmLib / ArmV7 / ArmV7Support.S

diff --git a/ArmPkg/Library/ArmLib/ArmV7/ArmV7Support.S b/ArmPkg/Library/ArmLib/ArmV7/ArmV7Support.S
index ee6eb417092222ace285fcec146c7b40187bf3a7..d402118ce2ccdc8fe26605cd517416ff90a534a2 100644 (file)
--- a/ArmPkg/Library/ArmLib/ArmV7/ArmV7Support.S
+++ b/ArmPkg/Library/ArmLib/ArmV7/ArmV7Support.S
@@ -1,7 +1,7 @@
 #------------------------------------------------------------------------------ \r
 #\r
 # Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>\r
-# Copyright (c) 2011, ARM Limited. All rights reserved.\r
+# Copyright (c) 2011 - 2014, 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
@@ -49,6 +49,7 @@ GCC_ASM_EXPORT (ArmCallWFI)
 GCC_ASM_EXPORT (ArmReadCbar)\r
 GCC_ASM_EXPORT (ArmInvalidateInstructionAndDataTlb)\r
 GCC_ASM_EXPORT (ArmReadMpidr)\r
+GCC_ASM_EXPORT (ArmReadMidr)\r
 GCC_ASM_EXPORT (ArmReadTpidrurw)\r
 GCC_ASM_EXPORT (ArmWriteTpidrurw)\r
 GCC_ASM_EXPORT (ArmIsArchTimerImplemented)\r
@@ -376,7 +377,11 @@ ASM_PFX(ArmInvalidateInstructionAndDataTlb):
 ASM_PFX(ArmReadMpidr):\r
   mrc     p15, 0, r0, c0, c0, 5       @ read MPIDR\r
   bx      lr\r
-  \r
+\r
+ASM_PFX(ArmReadMidr):\r
+  mrc     p15, 0, r0, c0, c0, 0       @ Read Main ID Register\r
+  bx      lr\r
+\r
 ASM_PFX(ArmReadTpidrurw):\r
   mrc     p15, 0, r0, c13, c0, 2    @ read TPIDRURW\r
   bx      lr\r