/** @file
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Reset System Library functions for Simics ICH10
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Copyright (c) 2006 - 2019 Intel Corporation. All rights reserved. <BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Base.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/TimerLib.h>
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#include <Register/X58Ich10.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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ASSERT (SuspendType < 6);
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DEBUG((EFI_D_ERROR, "SuspendType = 0x%x\n", SuspendType));
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IoBitFieldWrite16 (ICH10_PMBASE_IO + 4, 10, 13, (UINT16) SuspendType);
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IoOr16 (ICH10_PMBASE_IO + 0x04, 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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DEBUG((EFI_D_ERROR, "ResetCold_CF9\n"));
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IoWrite8 (0xCF9, BIT3 | BIT2 | BIT1); // 1st choice: PIIX3 RCR, RCPU|SRST
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MicroSecondDelay (50);
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DEBUG((EFI_D_ERROR, "ResetCold_Port64\n"));
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IoWrite8 (0x64, 0xfe); // 2nd choice: keyboard controller
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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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DEBUG((EFI_D_ERROR, "ResetWarm\n"));
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//
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//BUGBUG workaround for warm reset
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//
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IoWrite8(0xCF9, BIT2 | BIT1);
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MicroSecondDelay(50);
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IoWrite8 (0x64, 0xfe);
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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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DEBUG((EFI_D_ERROR, "ResetShutdown\n"));
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AcpiPmControl (0);
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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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DEBUG((EFI_D_ERROR, "EnterS3WithImmediateWake\n"));
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AcpiPmControl (1);
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ASSERT (FALSE);
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}
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/**
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This function causes a systemwide reset. The exact type of the reset is
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defined by the EFI_GUID that follows the Null-terminated Unicode string passed
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into ResetData. If the platform does not recognize the EFI_GUID in ResetData
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the platform must pick a supported reset type to perform.The platform may
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optionally log the parameters from any non-normal reset that occurs.
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@param[in] DataSize The size, in bytes, of ResetData.
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@param[in] ResetData The data buffer starts with a Null-terminated string,
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followed by the EFI_GUID.
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**/
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VOID
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EFIAPI
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ResetPlatformSpecific (
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IN UINTN DataSize,
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IN VOID *ResetData
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)
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{
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DEBUG((EFI_D_ERROR, "ResetPlatformSpecific\n"));
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ResetCold ();
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}
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