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EmbeddedPkg: Split off FDT loading functionality from FdtLib

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Split off the recently added functionality to load device tree images and
install them as configuration tables, as it introduces a dependency on
UefiBootServicesTableLib, preventing FdtLib from being used during SEC and
PEI phases.

Contributed-under: TianoCore Contribution Agreement 1.0
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16080 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Ard Biesheuvel
2014-09-09 17:59:19 +00:00
committed by oliviermartin
parent f8d7d6e151
commit 1e9b2bddff
6 changed files with 97 additions and 44 deletions
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48
EmbeddedPkg/Include/Library/FdtLoadLib.h Normal file
View File

@@ -0,0 +1,48 @@
/** @file
*
* Copyright (c) 2011-2014, 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.
*
**/
#ifndef _FDT_LOAD_LIB_H_
#define _FDT_LOAD_LIB_H_
/**
Load and Install FDT from Semihosting
@param Filename Name of the file to load from semihosting
@return EFI_SUCCESS Fdt Blob was successfully installed into the configuration table
from semihosting
@return EFI_NOT_FOUND Fail to locate the file in semihosting
@return EFI_OUT_OF_RESOURCES Fail to allocate memory to contain the blob
**/
EFI_STATUS
InstallFdtFromSemihosting (
IN CONST CHAR16* FileName
);
/**
Load and Install FDT from Firmware Volume
@param Filename Guid of the FDT blob to load from firmware volume
@return EFI_SUCCESS Fdt Blob was successfully installed into the configuration table
from firmware volume
@return EFI_NOT_FOUND Failed to locate the file in firmware volume
@return EFI_OUT_OF_RESOURCES Failed to allocate memory to contain the blob
**/
EFI_STATUS
InstallFdtFromFv (
IN CONST EFI_GUID *FileName
);
#endif

31
EmbeddedPkg/Include/libfdt_env.h
View File

@@ -15,7 +15,6 @@
#ifndef _LIBFDT_ENV_H
#define _LIBFDT_ENV_H
#include <Uefi.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
@@ -79,34 +78,4 @@ static inline char *strchr(const char *s, int c) {
return AsciiStrStr (s, pattern);
}
/**
Load and Install FDT from Semihosting
@param Filename Name of the file to load from semihosting
@return EFI_SUCCESS Fdt Blob was successfully installed into the configuration table
from semihosting
@return EFI_NOT_FOUND Fail to locate the file in semihosting
@return EFI_OUT_OF_RESOURCES Fail to allocate memory to contain the blob
**/
EFI_STATUS
InstallFdtFromSemihosting (
IN CONST CHAR16* FileName
);
/**
Load and Install FDT from Firmware Volume
@param Filename Guid of the FDT blob to load from firmware volume
@return EFI_SUCCESS Fdt Blob was successfully installed into the configuration table
from firmware volume
@return EFI_NOT_FOUND Failed to locate the file in firmware volume
@return EFI_OUT_OF_RESOURCES Failed to allocate memory to contain the blob
**/
EFI_STATUS
InstallFdtFromFv (
IN CONST EFI_GUID *FileName
);
#endif /* _LIBFDT_ENV_H */