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authoroliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524>2012-05-02 20:02:39 +0000
committeroliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524>2012-05-02 20:02:39 +0000
commit836c350061600e6cde14b73417b9d073b00b0f69 (patch)
tree2e2a46ab3837b1444dd1639aea9e0f08cc4e1986 /ArmPkg/Library/ArmLib/Common/ArmLib.c
parent7fffeef9bece37fe48341fcf47edb474f954e690 (diff)
downloadedk2-platforms-836c350061600e6cde14b73417b9d073b00b0f69.tar.xz
ArmPkg/ArmLib: Added new functions to access ARM coprocessors
Signed-off-by: Olivier Martin <olivier.martin@arm.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13253 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPkg/Library/ArmLib/Common/ArmLib.c')
-rw-r--r--ArmPkg/Library/ArmLib/Common/ArmLib.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/ArmPkg/Library/ArmLib/Common/ArmLib.c b/ArmPkg/Library/ArmLib/Common/ArmLib.c
index ae1b785608..a7b9551ba1 100644
--- a/ArmPkg/Library/ArmLib/Common/ArmLib.c
+++ b/ArmPkg/Library/ArmLib/Common/ArmLib.c
@@ -1,6 +1,7 @@
/** @file
Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+ Copyright (c) 2011 - 2012, ARM Ltd. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@@ -70,3 +71,13 @@ ArmSetAuxCrBit (
ArmWriteAuxCr(val);
}
+VOID
+EFIAPI
+ArmUnsetAuxCrBit (
+ IN UINT32 Bits
+ )
+{
+ UINT32 val = ArmReadAuxCr();
+ val &= ~Bits;
+ ArmWriteAuxCr(val);
+}