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authoroliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524>2013-05-10 12:49:10 +0000
committeroliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524>2013-05-10 12:49:10 +0000
commitb5a572238d3c45ec8d3d0ec2c6ee3e6930458b96 (patch)
treed29b612ce62955afab2a4b4425b9b0a7254cedbc /ArmPlatformPkg/PrePeiCore/Arm
parent2d45f194d98a1ff4f7d78b96a551d903969262b4 (diff)
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ArmPlatform/ArmPlatformLib: Introduced ArmPlatformPeiBootAction()
This function allows platform to do any specific actions prior to the start the PEI phase. For instance, this function could be used by some platforms to initialize clocks that are required at the early stage of the PEI phase. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Olivier Martin <olivier.martin@arm.com> Acked-by: Ryan Harkin <ryan.harkin@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14347 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPlatformPkg/PrePeiCore/Arm')
-rw-r--r--ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.S4
-rw-r--r--ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.asm4
2 files changed, 8 insertions, 0 deletions
diff --git a/ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.S b/ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.S
index 3b463eabee..af4350b0cb 100644
--- a/ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.S
+++ b/ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.S
@@ -23,11 +23,15 @@ GCC_ASM_IMPORT(CEntryPoint)
GCC_ASM_IMPORT(ArmPlatformGetCorePosition)
GCC_ASM_IMPORT(ArmPlatformIsPrimaryCore)
GCC_ASM_IMPORT(ArmReadMpidr)
+GCC_ASM_IMPORT(ArmPlatformPeiBootAction)
GCC_ASM_EXPORT(_ModuleEntryPoint)
StartupAddr: .word CEntryPoint
ASM_PFX(_ModuleEntryPoint):
+ // Do early platform specific actions
+ bl ASM_PFX(ArmPlatformPeiBootAction)
+
// Identify CPU ID
bl ASM_PFX(ArmReadMpidr)
// Keep a copy of the MpId register value
diff --git a/ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.asm b/ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.asm
index 1510fb84d0..be1a767696 100644
--- a/ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.asm
+++ b/ArmPlatformPkg/PrePeiCore/Arm/PrePeiCoreEntryPoint.asm
@@ -22,6 +22,7 @@
IMPORT ArmPlatformGetCorePosition
IMPORT ArmPlatformIsPrimaryCore
IMPORT ArmReadMpidr
+ IMPORT ArmPlatformPeiBootAction
EXPORT _ModuleEntryPoint
PRESERVE8
@@ -30,6 +31,9 @@
StartupAddr DCD CEntryPoint
_ModuleEntryPoint
+ // Do early platform specific actions
+ bl ArmPlatformPeiBootAction
+
// Identify CPU ID
bl ArmReadMpidr
// Keep a copy of the MpId register value