From c07b2a9f88084322a86282946e5fa573351d5f23 Mon Sep 17 00:00:00 2001
From: mdkinney <mdkinney@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Tue, 3 Aug 2010 05:11:44 +0000
Subject: [PATCH] Add ResetSystemLib instances for PCAT that only supports cold
 reset and a warm reset that is always converted to a cold reset.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10766 6f19259b-4bc3-4df7-8a09-765794883524
---
 .../Library/ResetSystemLib/ResetSystemLib.c   | 86 +++++++++++++++++++
 .../Library/ResetSystemLib/ResetSystemLib.inf | 38 ++++++++
 2 files changed, 124 insertions(+)
 create mode 100644 PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.c
 create mode 100644 PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.inf

diff --git a/PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.c b/PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.c
new file mode 100644
index 0000000000..6a9dd71b00
--- /dev/null
+++ b/PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.c
@@ -0,0 +1,86 @@
+/** @file
+  Reset System Library functions for PCAT platforms
+
+  Copyright (c) 2006 - 2009, 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
+  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 <Base.h>
+
+#include <Library/DebugLib.h>
+#include <Library/IoLib.h>
+
+/**
+  Calling this function causes a system-wide reset. This sets
+  all circuitry within the system to its initial state. This type of reset
+  is asynchronous to system operation and operates without regard to
+  cycle boundaries.
+
+  System reset should not return, if it returns, it means the system does
+  not support cold reset.
+**/
+VOID
+EFIAPI
+ResetCold (
+  VOID
+  )
+{
+  IoWrite8 (0x64, 0xfe);
+}
+
+/**
+  Calling this function causes a system-wide initialization. The processors
+  are set to their initial state, and pending cycles are not corrupted.
+
+  System reset should not return, if it returns, it means the system does
+  not support warm reset.
+**/
+VOID
+EFIAPI
+ResetWarm (
+  VOID
+  )
+{
+  IoWrite8 (0x64, 0xfe);
+}
+
+/**
+  Calling this function causes the system to enter a power state equivalent
+  to the ACPI G2/S5 or G3 states.
+
+  System shutdown should not return, if it returns, it means the system does
+  not support shut down reset.
+**/
+VOID
+EFIAPI
+ResetShutdown (
+  VOID
+  )
+{
+  ASSERT (FALSE);
+}
+
+
+/**
+  Calling this function causes the system to enter a power state for capsule
+  update.
+
+  Reset update should not return, if it returns, it means the system does
+  not support capsule update.
+
+**/
+VOID
+EFIAPI
+EnterS3WithImmediateWake (
+  VOID
+  )
+{
+  ASSERT (FALSE);
+}
diff --git a/PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.inf b/PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.inf
new file mode 100644
index 0000000000..26aebc100c
--- /dev/null
+++ b/PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.inf
@@ -0,0 +1,38 @@
+## @file
+#   Library instance for ResetSystem library class fort PCAT systems
+#
+#  Copyright (c) 2006 - 2010, 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
+#  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.
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = ResetSystemLib
+  FILE_GUID                      = EC4F3E59-F879-418b-9E4C-7D6F434714A0
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = ResetSystemLib 
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = IA32 X64 IPF
+#
+
+[Sources]
+  ResetSystemLib.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+
+[LibraryClasses]
+  DebugLib
+  IoLib
+