diff options
Diffstat (limited to 'ArmPkg')
| -rw-r--r-- | ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S | 4 | ||||
| -rw-r--r-- | ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.asm | 4 | ||||
| -rw-r--r-- | ArmPkg/Library/ArmLib/Arm/ArmV7Lib.h | 8 |
3 files changed, 14 insertions, 2 deletions
diff --git a/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S b/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S index 01c91b10fc..a60a2f6341 100644 --- a/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S +++ b/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S @@ -60,6 +60,10 @@ ASM_FUNC(ArmDisableInterrupts) isb
bx LR
+ASM_FUNC(ArmReadIdMmfr4)
+ mrc p15,0,r0,c0,c2,6 @ Read ID_MMFR4 Register
+ bx lr
+
// UINT32
// ReadCCSIDR (
// IN UINT32 CSSELR
diff --git a/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.asm b/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.asm index 26ffa331b9..1679b09b79 100644 --- a/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.asm +++ b/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.asm @@ -64,6 +64,10 @@ isb
bx LR
+ RVCT_ASM_EXPORT ArmReadIdMmfr4
+ mrc p15,0,r0,c0,c2,6 ; Read ID_MMFR4 Register
+ bx LR
+
// UINT32
// ReadCCSIDR (
// IN UINT32 CSSELR
diff --git a/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.h b/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.h index bb7bda0a3a..dcf6723b80 100644 --- a/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.h +++ b/ArmPkg/Library/ArmLib/Arm/ArmV7Lib.h @@ -48,9 +48,13 @@ ArmCleanInvalidateDataCacheEntryBySetWay ( IN UINTN SetWayFormat
);
-UINTN
+/** Reads the ID_MMFR4 register.
+
+ @return The contents of the ID_MMFR4 register.
+**/
+UINT32
EFIAPI
-ArmReadIdPfr0 (
+ArmReadIdMmfr4 (
VOID
);
|