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| author | Michael Zimmermann <sigmaepsilon92@gmail.com> | 2018-01-13 07:52:45 +0100 |
|---|---|---|
| committer | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2018-01-15 12:02:25 +0000 |
| commit | 1e1d16971d1ae620d15b685fd76959c94d304319 (patch) | |
| tree | 8f2cbc006a75facc10fb04d7781111231b5e9b5b /ArmPkg/Library/ArmLib/Arm/ArmLibSupport.asm | |
| parent | 29af38b0f8f2aa7b08f61a9df38a59dbc15e9302 (diff) | |
| download | edk2-1e1d16971d1ae620d15b685fd76959c94d304319.tar.gz edk2-1e1d16971d1ae620d15b685fd76959c94d304319.tar.bz2 edk2-1e1d16971d1ae620d15b685fd76959c94d304319.zip | |
ArmPkg/Library/ArmLib: add ArmWriteSctlr
This currently isn't needed by anything in the edk2 tree but
it's useful for externally maintained platforms which have
to set this register e.g. to disable alignment aborts.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Michael Zimmermann <sigmaepsilon92@gmail.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Diffstat (limited to 'ArmPkg/Library/ArmLib/Arm/ArmLibSupport.asm')
| -rw-r--r-- | ArmPkg/Library/ArmLib/Arm/ArmLibSupport.asm | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/ArmPkg/Library/ArmLib/Arm/ArmLibSupport.asm b/ArmPkg/Library/ArmLib/Arm/ArmLibSupport.asm index 85b0feee20..219140c22b 100644 --- a/ArmPkg/Library/ArmLib/Arm/ArmLibSupport.asm +++ b/ArmPkg/Library/ArmLib/Arm/ArmLibSupport.asm @@ -155,6 +155,9 @@ mrc p15, 0, r0, c1, c0, 0 // Read SCTLR into R0 (Read control register configuration data)
bx lr
+ RVCT_ASM_EXPORT ArmWriteSctlr
+ mcr p15, 0, r0, c1, c0, 0
+ bx lr
RVCT_ASM_EXPORT ArmReadCpuActlr
mrc p15, 0, r0, c1, c0, 1
|