diff options
Diffstat (limited to 'roms/edk2/PcAtChipsetPkg/Library/ResetSystemLib')
3 files changed, 183 insertions, 0 deletions
diff --git a/roms/edk2/PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.c b/roms/edk2/PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.c new file mode 100644 index 000000000..e42c41c48 --- /dev/null +++ b/roms/edk2/PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.c @@ -0,0 +1,130 @@ +/** @file
+ Reset System Library functions for PCAT platforms
+
+ Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Base.h>
+
+#include <Uefi/UefiBaseType.h>
+#include <Uefi/UefiMultiPhase.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 ((UINTN) PcdGet64 (PcdResetControlRegister), PcdGet8 (PcdResetControlValueColdReset));
+}
+
+/**
+ 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 ((UINTN) PcdGet64 (PcdResetControlRegister), PcdGet8 (PcdResetControlValueColdReset));
+}
+
+/**
+ 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);
+}
+
+
+/**
+ This function causes a systemwide reset. The exact type of the reset is
+ defined by the EFI_GUID that follows the Null-terminated Unicode string passed
+ into ResetData. If the platform does not recognize the EFI_GUID in ResetData
+ the platform must pick a supported reset type to perform.The platform may
+ optionally log the parameters from any non-normal reset that occurs.
+
+ @param[in] DataSize The size, in bytes, of ResetData.
+ @param[in] ResetData The data buffer starts with a Null-terminated string,
+ followed by the EFI_GUID.
+**/
+VOID
+EFIAPI
+ResetPlatformSpecific (
+ IN UINTN DataSize,
+ IN VOID *ResetData
+ )
+{
+ ResetCold ();
+}
+
+/**
+ The ResetSystem function resets the entire platform.
+
+ @param[in] ResetType The type of reset to perform.
+ @param[in] ResetStatus The status code for the reset.
+ @param[in] DataSize The size, in bytes, of ResetData.
+ @param[in] ResetData For a ResetType of EfiResetCold, EfiResetWarm, or EfiResetShutdown
+ the data buffer starts with a Null-terminated string, optionally
+ followed by additional binary data. The string is a description
+ that the caller may use to further indicate the reason for the
+ system reset.
+**/
+VOID
+EFIAPI
+ResetSystem (
+ IN EFI_RESET_TYPE ResetType,
+ IN EFI_STATUS ResetStatus,
+ IN UINTN DataSize,
+ IN VOID *ResetData OPTIONAL
+ )
+{
+ switch (ResetType) {
+ case EfiResetWarm:
+ ResetWarm ();
+ break;
+
+ case EfiResetCold:
+ ResetCold ();
+ break;
+
+ case EfiResetShutdown:
+ ResetShutdown ();
+ return;
+
+ case EfiResetPlatformSpecific:
+ ResetPlatformSpecific (DataSize, ResetData);
+ return;
+
+ default:
+ return;
+ }
+}
diff --git a/roms/edk2/PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.inf b/roms/edk2/PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.inf new file mode 100644 index 000000000..3f3d0e4a1 --- /dev/null +++ b/roms/edk2/PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.inf @@ -0,0 +1,37 @@ +## @file
+# Library instance for ResetSystem library class for PCAT systems
+#
+# Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = ResetSystemLib
+ MODULE_UNI_FILE = ResetSystemLib.uni
+ 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
+#
+
+[Sources]
+ ResetSystemLib.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ PcAtChipsetPkg/PcAtChipsetPkg.dec
+
+[LibraryClasses]
+ DebugLib
+ IoLib
+
+[Pcd]
+ gPcAtChipsetPkgTokenSpaceGuid.PcdResetControlRegister ## CONSUMES
+ gPcAtChipsetPkgTokenSpaceGuid.PcdResetControlValueColdReset ## CONSUMES
diff --git a/roms/edk2/PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.uni b/roms/edk2/PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.uni new file mode 100644 index 000000000..ea2a91036 --- /dev/null +++ b/roms/edk2/PcAtChipsetPkg/Library/ResetSystemLib/ResetSystemLib.uni @@ -0,0 +1,16 @@ +// /** @file
+// Library instance for ResetSystem library class for PCAT systems
+//
+// Library instance for ResetSystem library class for PCAT systems
+//
+// Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+//
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+// **/
+
+
+#string STR_MODULE_ABSTRACT #language en-US "Library instance for ResetSystem library class for PCAT systems"
+
+#string STR_MODULE_DESCRIPTION #language en-US "Library instance for ResetSystem library class for PCAT systems"
+
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