diff options
Diffstat (limited to 'ArmPkg')
| -rw-r--r-- | ArmPkg/Library/ArmSmcPsciResetSystemLib/ArmSmcPsciResetSystemLib.c | 115 | ||||
| -rw-r--r-- | ArmPkg/Library/ArmSmcPsciResetSystemLib/ArmSmcPsciResetSystemLib.inf | 35 |
2 files changed, 150 insertions, 0 deletions
diff --git a/ArmPkg/Library/ArmSmcPsciResetSystemLib/ArmSmcPsciResetSystemLib.c b/ArmPkg/Library/ArmSmcPsciResetSystemLib/ArmSmcPsciResetSystemLib.c new file mode 100644 index 0000000000..d6d26bce50 --- /dev/null +++ b/ArmPkg/Library/ArmSmcPsciResetSystemLib/ArmSmcPsciResetSystemLib.c @@ -0,0 +1,115 @@ +/** @file
+ ResetSystemLib implementation using PSCI calls
+
+ Copyright (c) 2017, 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/ResetSystemLib.h>
+#include <Library/ArmSmcLib.h>
+
+#include <IndustryStandard/ArmStdSmc.h>
+
+/**
+ This function causes a system-wide reset (cold reset), in which
+ all circuitry within the system returns to its initial state. This type of reset
+ is asynchronous to system operation and operates without regard to
+ cycle boundaries.
+
+ If this function returns, it means that the system does not support cold reset.
+**/
+VOID
+EFIAPI
+ResetCold (
+ VOID
+ )
+{
+ ARM_SMC_ARGS ArmSmcArgs;
+
+ // Send a PSCI 0.2 SYSTEM_RESET command
+ ArmSmcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_RESET;
+ ArmCallSmc (&ArmSmcArgs);
+}
+
+/**
+ This function causes a system-wide initialization (warm reset), in which all processors
+ are set to their initial state. Pending cycles are not corrupted.
+
+ If this function returns, it means that the system does not support warm reset.
+**/
+VOID
+EFIAPI
+ResetWarm (
+ VOID
+ )
+{
+ // Map a warm reset into a cold reset
+ ResetCold ();
+}
+
+/**
+ This function causes the system to enter a power state equivalent
+ to the ACPI G2/S5 or G3 states.
+
+ If this function returns, it means that the system does not support shutdown reset.
+**/
+VOID
+EFIAPI
+ResetShutdown (
+ VOID
+ )
+{
+ ARM_SMC_ARGS ArmSmcArgs;
+
+ // Send a PSCI 0.2 SYSTEM_OFF command
+ ArmSmcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_OFF;
+ ArmCallSmc (&ArmSmcArgs);
+}
+
+/**
+ This function causes the system to enter S3 and then wake up immediately.
+
+ If this function returns, it means that the system does not support S3 feature.
+**/
+VOID
+EFIAPI
+EnterS3WithImmediateWake (
+ VOID
+ )
+{
+ // Not implemented
+}
+
+/**
+ 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
+ )
+{
+ // Map the platform specific reset as reboot
+ ResetCold ();
+}
diff --git a/ArmPkg/Library/ArmSmcPsciResetSystemLib/ArmSmcPsciResetSystemLib.inf b/ArmPkg/Library/ArmSmcPsciResetSystemLib/ArmSmcPsciResetSystemLib.inf new file mode 100644 index 0000000000..5a1ee976e5 --- /dev/null +++ b/ArmPkg/Library/ArmSmcPsciResetSystemLib/ArmSmcPsciResetSystemLib.inf @@ -0,0 +1,35 @@ +#/** @file
+# ResetSystemLib implementation using PSCI calls
+#
+# Copyright (c) 2017, 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 = 0x00010019
+ BASE_NAME = ArmSmcPsciResetSystemLib
+ FILE_GUID = 18B12C83-7718-4D83-ADA4-87F2FE698DD4
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = ResetSystemLib
+
+[Sources]
+ ArmSmcPsciResetSystemLib.c
+
+[Packages]
+ ArmPkg/ArmPkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ MdePkg/MdePkg.dec
+
+[LibraryClasses]
+ ArmSmcLib
+ BaseLib
+ DebugLib
|