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Port AcpiResetDxe from EDK to EDKII to enable reset function on DUET above legacy free platform.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10034 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
niruiyu
2010-02-21 09:30:01 +00:00
parent 450ec0ed87
commit 0e047a2a83
8 changed files with 484 additions and 175 deletions
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194
DuetPkg/AcpiResetDxe/Reset.c Normal file
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/*++ @file
Reset Architectural Protocol implementation.
Copyright (c) 2006 - 2010, Intel Corporation
All rights reserved. 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 "Reset.h"
/**
Use ACPI method to reset the sytem. If fail, use legacy 8042 method to reset the system
@param[in] AcpiDescription Global variable to record reset info
**/
VOID
SystemReset (
IN EFI_ACPI_DESCRIPTION *AcpiDescription
)
{
UINT8 Dev;
UINT8 Func;
UINT8 Register;
if ((AcpiDescription->RESET_REG.Address != 0) &&
((AcpiDescription->RESET_REG.AddressSpaceId == EFI_ACPI_3_0_SYSTEM_IO) ||
(AcpiDescription->RESET_REG.AddressSpaceId == EFI_ACPI_3_0_SYSTEM_MEMORY) ||
(AcpiDescription->RESET_REG.AddressSpaceId == EFI_ACPI_3_0_PCI_CONFIGURATION_SPACE))) {
//
// Use ACPI System Reset
//
switch (AcpiDescription->RESET_REG.AddressSpaceId) {
case EFI_ACPI_3_0_SYSTEM_IO:
IoWrite8 ((UINTN) AcpiDescription->RESET_REG.Address, AcpiDescription->RESET_VALUE);
break;
case EFI_ACPI_3_0_SYSTEM_MEMORY:
MmioWrite8 ((UINTN) AcpiDescription->RESET_REG.Address, AcpiDescription->RESET_VALUE);
break;
case EFI_ACPI_3_0_PCI_CONFIGURATION_SPACE:
Register = (UINT8) AcpiDescription->RESET_REG.Address;
Func = (UINT8) (RShiftU64 (AcpiDescription->RESET_REG.Address, 16) & 0x7);
Dev = (UINT8) (RShiftU64 (AcpiDescription->RESET_REG.Address, 32) & 0x1F);
PciWrite8 (PCI_LIB_ADDRESS (0, Dev, Func, Register), AcpiDescription->RESET_VALUE);
break;
}
}
//
// If system comes here, means ACPI reset fail, do Legacy System Reset, assume 8042 available
//
Register = 0xfe;
IoWrite8 (0x64, Register);
//
// System should reset now
//
return ;
}
/**
Use ACPI method to shutdown the sytem
@param[in] AcpiDescription Global variable to record reset info
@retval EFI_UNSUPPORTED Shutdown fails
**/
EFI_STATUS
SystemShutdown (
IN EFI_ACPI_DESCRIPTION *AcpiDescription
)
{
UINT16 Value;
//
// 1. Write SLP_TYPa
//
if ((AcpiDescription->PM1a_CNT_BLK.Address != 0) && (AcpiDescription->SLP_TYPa != 0)) {
switch (AcpiDescription->PM1a_CNT_BLK.AddressSpaceId) {
case EFI_ACPI_3_0_SYSTEM_IO:
Value = IoRead16 ((UINTN) AcpiDescription->PM1a_CNT_BLK.Address);
Value = (Value & 0xc3ff) | 0x2000 | (AcpiDescription->SLP_TYPa << 10);
IoWrite16 ((UINTN) AcpiDescription->PM1a_CNT_BLK.Address, Value);
break;
case EFI_ACPI_3_0_SYSTEM_MEMORY:
Value = MmioRead16 ((UINTN) AcpiDescription->PM1a_CNT_BLK.Address);
Value = (Value & 0xc3ff) | 0x2000 | (AcpiDescription->SLP_TYPa << 10);
MmioWrite16 ((UINTN) AcpiDescription->PM1a_CNT_BLK.Address, Value);
break;
}
}
//
// 2. Write SLP_TYPb
//
if ((AcpiDescription->PM1b_CNT_BLK.Address != 0) && (AcpiDescription->SLP_TYPb != 0)) {
switch (AcpiDescription->PM1b_CNT_BLK.AddressSpaceId) {
case EFI_ACPI_3_0_SYSTEM_IO:
Value = IoRead16 ((UINTN) AcpiDescription->PM1b_CNT_BLK.Address);
Value = (Value & 0xc3ff) | 0x2000 | (AcpiDescription->SLP_TYPb << 10);
IoWrite16 ((UINTN) AcpiDescription->PM1b_CNT_BLK.Address, Value);
break;
case EFI_ACPI_3_0_SYSTEM_MEMORY:
Value = MmioRead16 ((UINTN) AcpiDescription->PM1b_CNT_BLK.Address);
Value = (Value & 0xc3ff) | 0x2000 | (AcpiDescription->SLP_TYPb << 10);
MmioWrite16 ((UINTN) AcpiDescription->PM1b_CNT_BLK.Address, Value);
break;
}
}
//
// Done, if code runs here, mean not shutdown correctly
//
return EFI_UNSUPPORTED;
}
/**
Reset the system.
@param[in] ResetType Warm or cold
@param[in] ResetStatus Possible cause of reset
@param[in] DataSize Size of ResetData in bytes
@param[in] ResetData Optional Unicode string
@param[in] AcpiDescription Global variable to record reset info
**/
VOID
EFIAPI
AcpiResetSystem (
IN EFI_RESET_TYPE ResetType,
IN EFI_STATUS ResetStatus,
IN UINTN DataSize,
IN CHAR16 *ResetData, OPTIONAL
IN EFI_ACPI_DESCRIPTION *AcpiDescription
)
{
EFI_STATUS Status;
switch (ResetType) {
case EfiResetWarm:
case EfiResetCold:
SystemReset (AcpiDescription);
break;
case EfiResetShutdown:
Status = SystemShutdown (AcpiDescription);
if (EFI_ERROR (Status)) {
SystemReset (AcpiDescription);
}
break;
default:
return ;
}
//
// Given we should have reset getting here would be bad
//
ASSERT (FALSE);
}
BOOLEAN
GetAcpiDescription (
IN EFI_ACPI_DESCRIPTION *AcpiDescription
)
{
EFI_HOB_GUID_TYPE *HobAcpiDescription;
//
// Get AcpiDescription Hob
//
HobAcpiDescription = GetFirstGuidHob (&gEfiAcpiDescriptionGuid);
if (HobAcpiDescription == NULL) {
return FALSE;
}
//
// Copy it to Runtime Memory
//
ASSERT (sizeof (EFI_ACPI_DESCRIPTION) == GET_GUID_HOB_DATA_SIZE (HobAcpiDescription));
CopyMem (AcpiDescription, GET_GUID_HOB_DATA (HobAcpiDescription), sizeof (EFI_ACPI_DESCRIPTION));
DEBUG ((EFI_D_ERROR, "ACPI Reset Base - %lx\n", AcpiDescription->RESET_REG.Address));
DEBUG ((EFI_D_ERROR, "ACPI Reset Value - %02x\n", (UINTN)AcpiDescription->RESET_VALUE));
DEBUG ((EFI_D_ERROR, "IAPC support - %x\n", (UINTN)(AcpiDescription->IAPC_BOOT_ARCH)));
return TRUE;
}