diff options
| author | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2013-05-10 12:41:27 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2013-05-10 12:41:27 +0000 |
| commit | bebda7ceec3d3024c76b3c2ed0c9b4e502a13d61 (patch) | |
| tree | 9c2d34dc7e57c2c52224c2990946778d955359fe /ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressSecLibRTSM/Arm/RTSMHelper.asm | |
| parent | bc7b889a033a2617b650fbb5596d4f02530090bd (diff) | |
| download | edk2-platforms-bebda7ceec3d3024c76b3c2ed0c9b4e502a13d61.tar.xz | |
ArmPlatformPkg/ArmPlatformLib: Added support for ArmPlatformIsPrimaryCore()
Checking if a core if the primary/boot core used to be done with the macro
IS_PRIMARY_CORE().
Some platforms exposes configuration registers to change the primary core.
Replacing the macro IS_PRIMARY_CORE() by ArmPlatformIsPrimaryCore() allows
some flexibility in the way to check the primary core.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Acked-by: Ryan Harkin <ryan.harkin@linaro.org>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14344 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressSecLibRTSM/Arm/RTSMHelper.asm')
| -rw-r--r-- | ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressSecLibRTSM/Arm/RTSMHelper.asm | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressSecLibRTSM/Arm/RTSMHelper.asm b/ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressSecLibRTSM/Arm/RTSMHelper.asm deleted file mode 100644 index 402db58278..0000000000 --- a/ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressSecLibRTSM/Arm/RTSMHelper.asm +++ /dev/null @@ -1,73 +0,0 @@ -//
-// Copyright (c) 2011-2012, ARM Limited. All rights reserved.
-//
-// This program and the accompanying materials
-// are licensed and made available under the terms and conditions of the BSD License
-// which accompanies this distribution. The full text of the license may be found at
-// http://opensource.org/licenses/bsd-license.php
-//
-// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-//
-//
-
-#include <AsmMacroIoLib.h>
-#include <Base.h>
-#include <Library/PcdLib.h>
-
-#include <Chipset/ArmCortexA9.h>
-
-#include <AutoGen.h>
-
- INCLUDE AsmMacroIoLib.inc
-
- EXPORT ArmGetCpuCountPerCluster
-
- AREA RTSMHelper, CODE, READONLY
-
-// IN None
-// OUT r0 = SCU Base Address
-ArmGetScuBaseAddress
- // Read Configuration Base Address Register. ArmCBar cannot be called to get
- // the Configuration BAR as a stack is not necessary setup. The SCU is at the
- // offset 0x0000 from the Private Memory Region.
- mrc p15, 4, r0, c15, c0, 0
- bx lr
-
-// IN None
-// OUT r0 = number of cores present in the system
-ArmGetCpuCountPerCluster
- stmfd SP!, {r1-r2}
-
- // Read CP15 MIDR
- mrc p15, 0, r1, c0, c0, 0
-
- // Check if the CPU is A15
- mov r1, r1, LSR #4
- mov r0, #ARM_CPU_TYPE_MASK
- and r1, r1, r0
-
- mov r0, #ARM_CPU_TYPE_A15
- cmp r1, r0
- beq _Read_cp15_reg
-
-_CPU_is_not_A15
- mov r2, lr ; Save link register
- bl ArmGetScuBaseAddress ; Read SCU Base Address
- mov lr, r2 ; Restore link register val
- ldr r0, [r0, #A9_SCU_CONFIG_OFFSET] ; Read SCU Config reg to get CPU count
- b _Return
-
-_Read_cp15_reg
- mrc p15, 1, r0, c9, c0, 2 ; Read C9 register of CP15 to get CPU count
- lsr r0, #24
-
-
-_Return
- and r0, r0, #3
- // Add '1' to the number of CPU on the Cluster
- add r0, r0, #1
- ldmfd SP!, {r1-r2}
- bx lr
-
- END
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