diff options
Diffstat (limited to 'roms/edk2/UefiPayloadPkg/Library/ResetSystemLib')
| -rw-r--r-- | roms/edk2/UefiPayloadPkg/Library/ResetSystemLib/ResetSystemLib.c | 153 | ||||
| -rw-r--r-- | roms/edk2/UefiPayloadPkg/Library/ResetSystemLib/ResetSystemLib.inf | 40 |
2 files changed, 193 insertions, 0 deletions
diff --git a/roms/edk2/UefiPayloadPkg/Library/ResetSystemLib/ResetSystemLib.c b/roms/edk2/UefiPayloadPkg/Library/ResetSystemLib/ResetSystemLib.c new file mode 100644 index 000000000..2e4b7fe59 --- /dev/null +++ b/roms/edk2/UefiPayloadPkg/Library/ResetSystemLib/ResetSystemLib.c @@ -0,0 +1,153 @@ +/** @file
+ Reset System Library functions for bootloader
+
+ Copyright (c) 2014 - 2019, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <PiDxe.h>
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/IoLib.h>
+#include <Library/HobLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Guid/AcpiBoardInfoGuid.h>
+
+ACPI_BOARD_INFO mAcpiBoardInfo;
+
+/**
+ The constructor function to initialize mAcpiBoardInfo.
+
+ @retval EFI_SUCCESS The constructor always returns RETURN_SUCCESS.
+
+**/
+RETURN_STATUS
+EFIAPI
+ResetSystemLibConstructor (
+ VOID
+ )
+{
+ EFI_HOB_GUID_TYPE *GuidHob;
+ ACPI_BOARD_INFO *AcpiBoardInfoPtr;
+
+ //
+ // Find the acpi board information guid hob
+ //
+ GuidHob = GetFirstGuidHob (&gUefiAcpiBoardInfoGuid);
+ ASSERT (GuidHob != NULL);
+
+ AcpiBoardInfoPtr = (ACPI_BOARD_INFO *)GET_GUID_HOB_DATA (GuidHob);
+ CopyMem (&mAcpiBoardInfo, AcpiBoardInfoPtr, sizeof (ACPI_BOARD_INFO));
+
+ return EFI_SUCCESS;
+}
+
+
+VOID
+AcpiPmControl (
+ UINTN SuspendType
+ )
+{
+ UINTN PmCtrlReg;
+
+ ASSERT (SuspendType <= 7);
+
+ PmCtrlReg = (UINTN)mAcpiBoardInfo.PmCtrlRegBase;
+ IoAndThenOr16 (PmCtrlReg, (UINT16) ~0x3c00, (UINT16) (SuspendType << 10));
+ IoOr16 (PmCtrlReg, BIT13);
+ CpuDeadLoop ();
+}
+
+/**
+ 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)mAcpiBoardInfo.ResetRegAddress, mAcpiBoardInfo.ResetValue);
+ CpuDeadLoop ();
+}
+
+/**
+ 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)mAcpiBoardInfo.ResetRegAddress, mAcpiBoardInfo.ResetValue);
+ CpuDeadLoop ();
+}
+
+/**
+ 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
+ )
+{
+ UINTN PmCtrlReg;
+
+ //
+ // GPE0_EN should be disabled to avoid any GPI waking up the system from S5
+ //
+ IoWrite16 ((UINTN)mAcpiBoardInfo.PmGpeEnBase, 0);
+
+ //
+ // Clear Power Button Status
+ //
+ IoWrite16((UINTN) mAcpiBoardInfo.PmEvtBase, BIT8);
+
+ //
+ // Transform system into S5 sleep state
+ //
+ PmCtrlReg = (UINTN)mAcpiBoardInfo.PmCtrlRegBase;
+ IoAndThenOr16 (PmCtrlReg, (UINT16) ~0x3c00, (UINT16) (7 << 10));
+ IoOr16 (PmCtrlReg, BIT13);
+ CpuDeadLoop ();
+
+ 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 ();
+}
diff --git a/roms/edk2/UefiPayloadPkg/Library/ResetSystemLib/ResetSystemLib.inf b/roms/edk2/UefiPayloadPkg/Library/ResetSystemLib/ResetSystemLib.inf new file mode 100644 index 000000000..e7341c341 --- /dev/null +++ b/roms/edk2/UefiPayloadPkg/Library/ResetSystemLib/ResetSystemLib.inf @@ -0,0 +1,40 @@ +## @file
+# Library instance for ResetSystem library class for bootloader
+#
+# Copyright (c) 2014 - 2019, Intel Corporation. All rights reserved.<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = ResetSystemLib
+ FILE_GUID = C5CD4EEE-527F-47df-9C92-B41414AF7479
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = ResetSystemLib
+
+ CONSTRUCTOR = ResetSystemLibConstructor
+#
+# 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
+ MdeModulePkg/MdeModulePkg.dec
+ UefiPayloadPkg/UefiPayloadPkg.dec
+
+[LibraryClasses]
+ DebugLib
+ IoLib
+ HobLib
+ BaseMemoryLib
+
+[Guids]
+ gUefiAcpiBoardInfoGuid
+
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