9c228fb031
Initial coreboot UEFI payload code check in. It provides UEFI services on top of coreboot that allows UEFI OS boot. CorebootPayloadPkg is source code package of coreboot Payload Modules, Provides definitions of payload image's layout and lists the modules required in DSC file. It supports the following features: - Support Unified Extensible Firmware Interface (UEFI) specification 2.4. - Support Platform Initialization(PI) specification 1.3. - Support execution as a coreboot payload. - Support USB 3.0 - Support SATA/ATA devices. - Support EFI aware OS boot. The following features are not supported currently and have not been validated: - GCC Tool Chains - SMM Execution Environment - Security Boot It was tested on a Intel Bay Trail CRB platform. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Maurice Ma <maurice.ma@intel.com> Reviewed-by: Prince Agyeman <prince.agyeman@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17081 6f19259b-4bc3-4df7-8a09-765794883524
137 lines
3.4 KiB
C
137 lines
3.4 KiB
C
/** @file
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Reset System Library functions for coreboot
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Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <PiDxe.h>
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#include <Library/BaseLib.h>
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#include <Library/DebugLib.h>
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#include <Library/IoLib.h>
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#include <Library/HobLib.h>
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#include <Guid/AcpiBoardInfoGuid.h>
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VOID
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AcpiPmControl (
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UINTN SuspendType
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)
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{
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EFI_HOB_GUID_TYPE *GuidHob;
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ACPI_BOARD_INFO *pAcpiBoardInfo;
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UINTN PmCtrlReg = 0;
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ASSERT (SuspendType <= 7);
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//
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// Find the acpi board information guid hob
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//
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GuidHob = GetFirstGuidHob (&gUefiAcpiBoardInfoGuid);
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ASSERT (GuidHob != NULL);
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pAcpiBoardInfo = (ACPI_BOARD_INFO *)GET_GUID_HOB_DATA (GuidHob);
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PmCtrlReg = (UINTN)pAcpiBoardInfo->PmCtrlRegBase;
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IoAndThenOr16 (PmCtrlReg, (UINT16) ~0x3c00, (UINT16) (SuspendType << 10));
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IoOr16 (PmCtrlReg, BIT13);
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CpuDeadLoop ();
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}
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/**
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Calling this function causes a system-wide reset. This sets
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all circuitry within the system to its initial state. This type of reset
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is asynchronous to system operation and operates without regard to
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cycle boundaries.
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System reset should not return, if it returns, it means the system does
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not support cold reset.
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**/
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VOID
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EFIAPI
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ResetCold (
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VOID
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)
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{
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EFI_HOB_GUID_TYPE *GuidHob;
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ACPI_BOARD_INFO *pAcpiBoardInfo;
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//
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// Find the acpi board information guid hob
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//
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GuidHob = GetFirstGuidHob (&gUefiAcpiBoardInfoGuid);
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ASSERT (GuidHob != NULL);
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pAcpiBoardInfo = (ACPI_BOARD_INFO *)GET_GUID_HOB_DATA (GuidHob);
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IoWrite8 ((UINTN)pAcpiBoardInfo->ResetRegAddress, pAcpiBoardInfo->ResetValue);
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CpuDeadLoop ();
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}
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/**
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Calling this function causes a system-wide initialization. The processors
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are set to their initial state, and pending cycles are not corrupted.
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System reset should not return, if it returns, it means the system does
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not support warm reset.
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**/
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VOID
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EFIAPI
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ResetWarm (
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VOID
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)
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{
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EFI_HOB_GUID_TYPE *GuidHob;
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ACPI_BOARD_INFO *pAcpiBoardInfo;
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//
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// Find the acpi board information guid hob
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//
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GuidHob = GetFirstGuidHob (&gUefiAcpiBoardInfoGuid);
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ASSERT (GuidHob != NULL);
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pAcpiBoardInfo = (ACPI_BOARD_INFO *)GET_GUID_HOB_DATA (GuidHob);
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IoWrite8 ((UINTN)pAcpiBoardInfo->ResetRegAddress, pAcpiBoardInfo->ResetValue);
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CpuDeadLoop ();
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}
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/**
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Calling this function causes the system to enter a power state equivalent
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to the ACPI G2/S5 or G3 states.
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System shutdown should not return, if it returns, it means the system does
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not support shut down reset.
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**/
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VOID
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EFIAPI
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ResetShutdown (
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VOID
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)
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{
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AcpiPmControl (7);
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ASSERT (FALSE);
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}
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/**
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Calling this function causes the system to enter a power state for capsule
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update.
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Reset update should not return, if it returns, it means the system does
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not support capsule update.
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**/
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VOID
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EFIAPI
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EnterS3WithImmediateWake (
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VOID
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)
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{
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AcpiPmControl (5);
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ASSERT (FALSE);
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}
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