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MdePkg: Add more DataBits support to Port80 output

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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.

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/trunk/edk2@18765 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Liming Gao
2015-11-11 02:16:35 +00:00
committed by lgao4
parent 9ddd7d7aec
commit 661c306ceb
4 changed files with 29 additions and 5 deletions
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5
MdePkg/Library/BasePostCodeLibPort80/BasePostCodeLibPort80.inf
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@@ -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