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/Sec/Arm/SecEntryPoint.S | |
| 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/Sec/Arm/SecEntryPoint.S')
| -rw-r--r-- | ArmPlatformPkg/Sec/Arm/SecEntryPoint.S | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/ArmPlatformPkg/Sec/Arm/SecEntryPoint.S b/ArmPlatformPkg/Sec/Arm/SecEntryPoint.S index 92035a1ffe..07fb71fdcc 100644 --- a/ArmPlatformPkg/Sec/Arm/SecEntryPoint.S +++ b/ArmPlatformPkg/Sec/Arm/SecEntryPoint.S @@ -1,5 +1,5 @@ //
-// Copyright (c) 2011-2012, ARM Limited. All rights reserved.
+// Copyright (c) 2011-2013, 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
@@ -19,6 +19,7 @@ .align 3
GCC_ASM_IMPORT(CEntryPoint)
+GCC_ASM_IMPORT(ArmPlatformIsPrimaryCore)
GCC_ASM_IMPORT(ArmPlatformSecBootAction)
GCC_ASM_IMPORT(ArmPlatformSecBootMemoryInit)
GCC_ASM_IMPORT(ArmDisableInterrupts)
@@ -45,13 +46,12 @@ ASM_PFX(_ModuleEntryPoint): _IdentifyCpu:
// Identify CPU ID
bl ASM_PFX(ArmReadMpidr)
- // Get ID of this CPU in Multicore system
- LoadConstantToReg (FixedPcdGet32(PcdArmPrimaryCoreMask), r1)
- and r5, r0, r1
+ // Keep a copy of the MpId register value
+ mov r9, r0
// Is it the Primary Core ?
- LoadConstantToReg (FixedPcdGet32(PcdArmPrimaryCore), r3)
- cmp r5, r3
+ bl ASM_PFX(ArmPlatformIsPrimaryCore)
+ cmp r0, #1
// Only the primary core initialize the memory (SMC)
beq _InitMem
@@ -74,9 +74,6 @@ _InitMem: // Initialize Init Boot Memory
bl ASM_PFX(ArmPlatformSecBootMemoryInit)
- // Only Primary CPU could run this line (the secondary cores have jumped from _IdentifyCpu to _SetupStack)
- LoadConstantToReg (FixedPcdGet32(PcdArmPrimaryCore), r5)
-
_SetupPrimaryCoreStack:
// Get the top of the primary stacks (and the base of the secondary stacks)
LoadConstantToReg (FixedPcdGet32(PcdCPUCoresSecStackBase), r1)
@@ -97,7 +94,7 @@ _SetupSecondaryCoreStack: add r1, r1, r2
// Get the Core Position (ClusterId * 4) + CoreId
- GetCorePositionFromMpId(r0, r5, r2)
+ GetCorePositionFromMpId(r0, r9, r2)
// The stack starts at the top of the stack region. Add '1' to the Core Position to get the top of the stack
add r0, r0, #1
@@ -115,7 +112,7 @@ _PrepareArguments: // Jump to SEC C code
// r0 = mp_id
// r1 = Boot Mode
- mov r0, r5
+ mov r0, r9
mov r1, r10
blx r3
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