sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ArmPlatformPkg: Introduced 'ArmPlatformSecLib'

Browse Source 
The function only used in Secure Firmware used to be mixed with
the Non-Secure/Normal functions in ArmPlatformLib.
When the Secure Firmware was not required for some platforms (eg:
BeagleBoard), these functions were empty functions.
This new interface has been created to clean the ArmPlatformLib
interface between the SEC and PEI phases.

Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13260 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
oliviermartin
2012-05-02 20:13:32 +00:00
parent 315649cda2
commit e314d564db
39 changed files with 569 additions and 371 deletions
Download Patch File Download Diff File Expand all files Collapse all files

35
BeagleBoardPkg/Library/BeagleBoardLib/BeagleBoard.c
View File

@@ -54,41 +54,6 @@ BeagleBoardGetRevision (
return (BEAGLEBOARD_REVISION)((Revision >> 11) & 0x7);
}
/**
Return if Trustzone is supported by your platform
A non-zero value must be returned if you want to support a Secure World on your platform.
ArmPlatformTrustzoneInit() will later set up the secure regions.
This function can return 0 even if Trustzone is supported by your processor. In this case,
the platform will continue to run in Secure World.
@return A non-zero value if Trustzone supported.
**/
UINTN
ArmPlatformTrustzoneSupported (
VOID
)
{
// The BeagleBoard starts in Normal World (Non Secure World)
return FALSE;
}
/**
Remap the memory at 0x0
Some platform requires or gives the ability to remap the memory at the address 0x0.
This function can do nothing if this feature is not relevant to your platform.
**/
VOID
ArmPlatformBootRemapping (
VOID
)
{
// Do nothing for the BeagleBoard
}
/**
Return the current Boot Mode

57
BeagleBoardPkg/Library/BeagleBoardLib/BeagleBoardHelper.S
View File

@@ -1,57 +0,0 @@
//
// Copyright (c) 2011, 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 <BeagleBoard.h>
#include <AutoGen.h>
.text
.align 3
GCC_ASM_EXPORT(ArmPlatformIsBootMemoryInitialized)
GCC_ASM_EXPORT(ArmPlatformInitializeBootMemory)
/**
Called at the early stage of the Boot phase to know if the memory has already been initialized
Running the code from the reset vector does not mean we start from cold boot. In some case, we
can go through this code with the memory already initialized.
Because this function is called at the early stage, the implementation must not use the stack.
Its implementation must probably done in assembly to ensure this requirement.
@return Return a non zero value if initialized
**/
ASM_PFX(ArmPlatformIsBootMemoryInitialized):
// The system memory is initialized by the BeagleBoard firmware
mov r0, #1
bx lr
/**
Initialize the memory where the initial stacks will reside
This memory can contain the initial stacks (Secure and Secure Monitor stacks).
In some platform, this region is already initialized and the implementation of this function can
do nothing. This memory can also represent the Secure RAM.
This function is called before the satck has been set up. Its implementation must ensure the stack
pointer is not used (probably required to use assembly language)
**/
ASM_PFX(ArmPlatformInitializeBootMemory):
// We must need to go into this function
bx lr
ASM_FUNCTION_REMOVE_IF_UNREFERENCED

58
BeagleBoardPkg/Library/BeagleBoardLib/BeagleBoardHelper.asm
View File

@@ -1,58 +0,0 @@
//
// Copyright (c) 2011, 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 <BeagleBoard.h>
#include <AutoGen.h>
INCLUDE AsmMacroIoLib.inc
EXPORT ArmPlatformIsBootMemoryInitialized
EXPORT ArmPlatformInitializeBootMemory
PRESERVE8
AREA BeagleBoardHelper, CODE, READONLY
/**
Called at the early stage of the Boot phase to know if the memory has already been initialized
Running the code from the reset vector does not mean we start from cold boot. In some case, we
can go through this code with the memory already initialized.
Because this function is called at the early stage, the implementation must not use the stack.
Its implementation must probably done in assembly to ensure this requirement.
@return Return a non zero value if initialized
**/
ArmPlatformIsBootMemoryInitialized
// The system memory is initialized by the BeagleBoard firmware
mov r0, #1
bx lr
/**
Initialize the memory where the initial stacks will reside
This memory can contain the initial stacks (Secure and Secure Monitor stacks).
In some platform, this region is already initialized and the implementation of this function can
do nothing. This memory can also represent the Secure RAM.
This function is called before the satck has been set up. Its implementation must ensure the stack
pointer is not used (probably required to use assembly language)
**/
ArmPlatformInitializeBootMemory
// We must need to go into this function
bx lr
END

4
BeagleBoardPkg/Library/BeagleBoardLib/BeagleBoardLib.inf
View File

@@ -1,5 +1,5 @@
#/* @file
# Copyright (c) 2011, ARM Limited. All rights reserved.
# 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
@@ -37,8 +37,6 @@
[Sources.common]
BeagleBoard.c
BeagleBoardMem.c
BeagleBoardHelper.asm | RVCT
BeagleBoardHelper.S | GCC
PadConfiguration.c
Clock.c