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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2017-03-31 11:32:36 +0100
committerArd Biesheuvel <ard.biesheuvel@linaro.org>2017-03-31 13:17:55 +0100
commit449a5df455ed74cdaa9a95e318388531dc073948 (patch)
tree7f18e92965d7b66fc4644e1d891e7aea628d2475 /EmbeddedPkg
parentf07cc45883d0562a7edaf57023e71a2ad601cf2e (diff)
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EmbeddedPkg: add DtPlatformDtbLoaderLib library class
To abstract the way a platform reasons about which DTB is appropriate, and the way it ultimately supplies the DTB image, introduce a new library class to encapsulate this functionality. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'EmbeddedPkg')
-rw-r--r--EmbeddedPkg/EmbeddedPkg.dec1
-rw-r--r--EmbeddedPkg/Include/Library/DtPlatformDtbLoaderLib.h39
2 files changed, 40 insertions, 0 deletions
diff --git a/EmbeddedPkg/EmbeddedPkg.dec b/EmbeddedPkg/EmbeddedPkg.dec
index 871fc5ff40..0bed2736c8 100644
--- a/EmbeddedPkg/EmbeddedPkg.dec
+++ b/EmbeddedPkg/EmbeddedPkg.dec
@@ -45,6 +45,7 @@
GdbSerialLib|Include/Library/GdbSerialLib.h
DebugAgentTimerLib|Include/Library/DebugAgentTimerLib.h
+ DtPlatformDtbLoaderLib|Include/Library/DtPlatformDtbLoaderLib.h
[Guids.common]
gEmbeddedTokenSpaceGuid = { 0xe0d8ca17, 0x4276, 0x4386, { 0xbb, 0x79, 0x48, 0xcb, 0x81, 0x3d, 0x3c, 0x4f }}
diff --git a/EmbeddedPkg/Include/Library/DtPlatformDtbLoaderLib.h b/EmbeddedPkg/Include/Library/DtPlatformDtbLoaderLib.h
new file mode 100644
index 0000000000..b2fbf4acbe
--- /dev/null
+++ b/EmbeddedPkg/Include/Library/DtPlatformDtbLoaderLib.h
@@ -0,0 +1,39 @@
+/** @file
+*
+* Copyright (c) 2017, Linaro, Ltd. 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 __DT_PLATFORM_DTB_LOADER_LIB_H__
+#define __DT_PLATFORM_DTB_LOADER_LIB_H__
+
+#include <Uefi/UefiBaseType.h>
+
+/**
+ Return a pool allocated copy of the DTB image that is appropriate for
+ booting the current platform via DT.
+
+ @param[out] Dtb Pointer to the DTB copy
+ @param[out] DtbSize Size of the DTB copy
+
+ @retval EFI_SUCCESS Operation completed successfully
+ @retval EFI_NOT_FOUND No suitable DTB image could be located
+ @retval EFI_OUT_OF_RESOURCES No pool memory available
+
+**/
+EFI_STATUS
+EFIAPI
+DtPlatformLoadDtb (
+ OUT VOID **Dtb,
+ OUT UINTN *DtbSize
+ );
+
+#endif