diff options
Diffstat (limited to 'ArmPkg')
| -rw-r--r-- | ArmPkg/ArmPkg.dec | 8 | ||||
| -rw-r--r-- | ArmPkg/ArmPkg.dsc | 1 | ||||
| -rw-r--r-- | ArmPkg/Library/ArmPsciResetSystemLib/ArmPsciResetSystemLib.c | 109 | ||||
| -rw-r--r-- | ArmPkg/Library/ArmPsciResetSystemLib/ArmPsciResetSystemLib.inf | 40 |
4 files changed, 158 insertions, 0 deletions
diff --git a/ArmPkg/ArmPkg.dec b/ArmPkg/ArmPkg.dec index 05bc1dcd6d..3142751449 100644 --- a/ArmPkg/ArmPkg.dec +++ b/ArmPkg/ArmPkg.dec @@ -231,3 +231,11 @@ gArmTokenSpaceGuid.PcdGicDistributorBase|0|UINT32|0x0000000C
gArmTokenSpaceGuid.PcdGicInterruptInterfaceBase|0|UINT32|0x0000000D
gArmTokenSpaceGuid.PcdGicSgiIntId|0|UINT32|0x00000025
+
+ #
+ # ARM PSCI function invocations can be done either through hypervisor
+ # calls (HVC) or secure monitor calls (SMC).
+ # PcdArmPsciMethod == 1 : use HVC
+ # PcdArmPsciMethod == 2 : use SMC
+ #
+ gArmTokenSpaceGuid.PcdArmPsciMethod|0|UINT32|0x00000042
diff --git a/ArmPkg/ArmPkg.dsc b/ArmPkg/ArmPkg.dsc index ad02281926..3af9b3b0b8 100644 --- a/ArmPkg/ArmPkg.dsc +++ b/ArmPkg/ArmPkg.dsc @@ -118,6 +118,7 @@ ArmPkg/Library/SemiHostingSerialPortLib/SemiHostingSerialPortLib.inf
ArmPkg/Library/SemihostLib/SemihostLib.inf
ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.inf
+ ArmPkg/Library/ArmPsciResetSystemLib/ArmPsciResetSystemLib.inf
ArmPkg/Drivers/CpuDxe/CpuDxe.inf
ArmPkg/Drivers/CpuPei/CpuPei.inf
diff --git a/ArmPkg/Library/ArmPsciResetSystemLib/ArmPsciResetSystemLib.c b/ArmPkg/Library/ArmPsciResetSystemLib/ArmPsciResetSystemLib.c new file mode 100644 index 0000000000..48c8735a22 --- /dev/null +++ b/ArmPkg/Library/ArmPsciResetSystemLib/ArmPsciResetSystemLib.c @@ -0,0 +1,109 @@ +/** @file
+ Support ResetSystem Runtime call using PSCI calls
+
+ Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+ Copyright (c) 2013, ARM Ltd. All rights reserved.<BR>
+ Copyright (c) 2014, Linaro Ltd. All rights reserved.<BR>
+
+ 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 <PiDxe.h>
+
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/EfiResetSystemLib.h>
+#include <Library/ArmSmcLib.h>
+#include <Library/ArmHvcLib.h>
+
+#include <IndustryStandard/ArmStdSmc.h>
+
+/**
+ Resets the entire platform.
+
+ @param ResetType The type of reset to perform.
+ @param ResetStatus The status code for the reset.
+ @param DataSize The size, in bytes, of WatchdogData.
+ @param ResetData For a ResetType of EfiResetCold, EfiResetWarm, or
+ EfiResetShutdown the data buffer starts with a Null-terminated
+ Unicode string, optionally followed by additional binary data.
+
+**/
+EFI_STATUS
+EFIAPI
+LibResetSystem (
+ IN EFI_RESET_TYPE ResetType,
+ IN EFI_STATUS ResetStatus,
+ IN UINTN DataSize,
+ IN CHAR16 *ResetData OPTIONAL
+ )
+{
+ ARM_SMC_ARGS ArmSmcArgs;
+ ARM_HVC_ARGS ArmHvcArgs;
+
+ switch (ResetType) {
+
+ case EfiResetPlatformSpecific:
+ // Map the platform specific reset as reboot
+ case EfiResetWarm:
+ // Map a warm reset into a cold reset
+ case EfiResetCold:
+ // Send a PSCI 0.2 SYSTEM_RESET command
+ ArmSmcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_RESET;
+ ArmHvcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_RESET;
+ break;
+ case EfiResetShutdown:
+ // Send a PSCI 0.2 SYSTEM_OFF command
+ ArmSmcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_OFF;
+ ArmHvcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_OFF;
+ break;
+ default:
+ ASSERT (FALSE);
+ return EFI_UNSUPPORTED;
+ }
+
+ switch (PcdGet32 (PcdArmPsciMethod)) {
+ case 1:
+ ArmCallHvc (&ArmHvcArgs);
+ break;
+
+ case 2:
+ ArmCallSmc (&ArmSmcArgs);
+ break;
+
+ default:
+ DEBUG ((EFI_D_ERROR, "%a: no PSCI method defined\n", __FUNCTION__));
+ return EFI_UNSUPPORTED;
+ }
+
+ // We should never be here
+ DEBUG ((EFI_D_ERROR, "%a: PSCI Reset failed\n", __FUNCTION__));
+ CpuDeadLoop ();
+ return EFI_UNSUPPORTED;
+}
+
+/**
+ Initialize any infrastructure required for LibResetSystem () to function.
+
+ @param ImageHandle The firmware allocated handle for the EFI image.
+ @param SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
+
+**/
+EFI_STATUS
+EFIAPI
+LibInitializeResetSystem (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ return EFI_SUCCESS;
+}
diff --git a/ArmPkg/Library/ArmPsciResetSystemLib/ArmPsciResetSystemLib.inf b/ArmPkg/Library/ArmPsciResetSystemLib/ArmPsciResetSystemLib.inf new file mode 100644 index 0000000000..bcea0aeb31 --- /dev/null +++ b/ArmPkg/Library/ArmPsciResetSystemLib/ArmPsciResetSystemLib.inf @@ -0,0 +1,40 @@ +#/** @file
+# Reset System lib using PSCI hypervisor or secure monitor calls
+#
+# Copyright (c) 2008, Apple Inc. All rights reserved.<BR>
+# Copyright (c) 2014, Linaro Ltd. All rights reserved.<BR>
+#
+# 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.
+#
+#
+#**/
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = ArmPsciResetSystemLib
+ FILE_GUID = A8F59B69-A105-41C7-8F5A-2C60DD7FD7AA
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = EfiResetSystemLib
+
+[Sources]
+ ArmPsciResetSystemLib.c
+
+[Packages]
+ ArmPkg/ArmPkg.dec
+ MdePkg/MdePkg.dec
+ EmbeddedPkg/EmbeddedPkg.dec
+
+[LibraryClasses]
+ DebugLib
+ BaseLib
+ ArmSmcLib
+ ArmHvcLib
+
+[Pcd]
+ gArmTokenSpaceGuid.PcdArmPsciMethod
|