diff options
| author | Liming Gao <liming.gao@intel.com> | 2015-11-18 08:05:27 +0000 |
|---|---|---|
| committer | vanjeff <vanjeff@Edk2> | 2015-11-18 08:05:27 +0000 |
| commit | 65a512014904ce251bb183f41812595c0f8b256f (patch) | |
| tree | 323bcb093bc0f2c0009c21fbc3af47c4fec4d9c7 /MdePkg | |
| parent | f065557152aa598aa1bbd399aa970a82a4b9aa8a (diff) | |
| download | edk2-platforms-65a512014904ce251bb183f41812595c0f8b256f.tar.xz | |
MdePkg: Add more DataBits support to Port80 output
The BasePostCodeLibPort80 instance just prints UINT8 to IoPort 80. Some boards
may support 16bit or 32bit. To support them, new PCD PcdPort80DataWidth is
introduced to specify the width of data bits to Port80.
(Sync patch r18765 from main trunk.)
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/branches/UDK2015@18871 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg')
| -rw-r--r-- | MdePkg/Library/BasePostCodeLibPort80/BasePostCodeLibPort80.inf | 5 | ||||
| -rw-r--r-- | MdePkg/Library/BasePostCodeLibPort80/PostCode.c | 24 | ||||
| -rw-r--r-- | MdePkg/MdePkg.dec | 5 | ||||
| -rw-r--r-- | MdePkg/MdePkg.uni | bin | 69604 -> 70116 bytes |
4 files changed, 29 insertions, 5 deletions
diff --git a/MdePkg/Library/BasePostCodeLibPort80/BasePostCodeLibPort80.inf b/MdePkg/Library/BasePostCodeLibPort80/BasePostCodeLibPort80.inf index e2f0be551d..ebe1158728 100644 --- a/MdePkg/Library/BasePostCodeLibPort80/BasePostCodeLibPort80.inf +++ b/MdePkg/Library/BasePostCodeLibPort80/BasePostCodeLibPort80.inf @@ -3,7 +3,7 @@ #
# Post Code Library that writes post code values to I/O port 0x80.
#
-# Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2015, Intel Corporation. All rights reserved.<BR>
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
@@ -40,8 +40,9 @@ [LibraryClasses]
IoLib
PcdLib
+ DebugLib
[Pcd]
gEfiMdePkgTokenSpaceGuid.PcdPostCodePropertyMask ## CONSUMES
-
+ gEfiMdePkgTokenSpaceGuid.PcdPort80DataWidth ## CONSUMES
diff --git a/MdePkg/Library/BasePostCodeLibPort80/PostCode.c b/MdePkg/Library/BasePostCodeLibPort80/PostCode.c index 925c7404bc..f1fdbabce4 100644 --- a/MdePkg/Library/BasePostCodeLibPort80/PostCode.c +++ b/MdePkg/Library/BasePostCodeLibPort80/PostCode.c @@ -1,7 +1,7 @@ /** @file
Post Code Library instance that writes post code values to I/O port 0x80.
- Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
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
@@ -17,6 +17,7 @@ #include <Library/PostCodeLib.h>
#include <Library/PcdLib.h>
#include <Library/IoLib.h>
+#include <Library/DebugLib.h>
/**
Sends an 32-bit value to a POST card.
@@ -42,7 +43,24 @@ PostCode ( IN UINT32 Value
)
{
- IoWrite8 (0x80, (UINT8)(Value));
+ switch (PcdGet8 (PcdPort80DataWidth)) {
+ case 8:
+ IoWrite8 (0x80, (UINT8)(Value));
+ break;
+ case 16:
+ IoWrite16 (0x80, (UINT16)(Value));
+ break;
+ case 32:
+ IoWrite32 (0x80, Value);
+ break;
+ default:
+ //
+ // Assert on the invalid data width
+ //
+ ASSERT (FALSE);
+ break;
+ }
+
return Value;
}
@@ -78,7 +96,7 @@ PostCodeWithDescription ( IN CONST CHAR8 *Description OPTIONAL
)
{
- IoWrite8 (0x80, (UINT8)(Value));
+ PostCode (Value);
return Value;
}
diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec index 337059a6a6..7ab0cbbcfb 100644 --- a/MdePkg/MdePkg.dec +++ b/MdePkg/MdePkg.dec @@ -1938,6 +1938,11 @@ # @Expression 0x80000002 | (gEfiMdePkgTokenSpaceGuid.PcdPostCodePropertyMask & 0xFC) == 0
gEfiMdePkgTokenSpaceGuid.PcdPostCodePropertyMask|0|UINT8|0x0000000b
+ ## The bit width of data to be written to Port80. The default value is 8.
+ # @Prompt Port80 Data Width
+ # @ValidList 0x80000001 | 8, 16, 32
+ gEfiMdePkgTokenSpaceGuid.PcdPort80DataWidth|8|UINT8|0x0000002d
+
## This value is used to configure X86 Processor FSB clock.
# @Prompt FSB Clock.
gEfiMdePkgTokenSpaceGuid.PcdFSBClock|200000000|UINT32|0x0000000c
diff --git a/MdePkg/MdePkg.uni b/MdePkg/MdePkg.uni Binary files differindex 38211344e0..5a5126213e 100644 --- a/MdePkg/MdePkg.uni +++ b/MdePkg/MdePkg.uni |