diff options
Diffstat (limited to 'ArmVirtPkg')
| -rw-r--r-- | ArmVirtPkg/Library/ArmVirtTimerFdtClientLib/ArmVirtTimerFdtClientLib.c | 87 | ||||
| -rw-r--r-- | ArmVirtPkg/Library/ArmVirtTimerFdtClientLib/ArmVirtTimerFdtClientLib.inf | 49 |
2 files changed, 136 insertions, 0 deletions
diff --git a/ArmVirtPkg/Library/ArmVirtTimerFdtClientLib/ArmVirtTimerFdtClientLib.c b/ArmVirtPkg/Library/ArmVirtTimerFdtClientLib/ArmVirtTimerFdtClientLib.c new file mode 100644 index 0000000000..6e7461c6b2 --- /dev/null +++ b/ArmVirtPkg/Library/ArmVirtTimerFdtClientLib/ArmVirtTimerFdtClientLib.c @@ -0,0 +1,87 @@ +/** @file
+ FDT client library for ARM's TimerDxe
+
+ Copyright (c) 2016, 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 <Uefi.h>
+
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PcdLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+
+#include <Protocol/FdtClient.h>
+
+#pragma pack (1)
+typedef struct {
+ UINT32 Type;
+ UINT32 Number;
+ UINT32 Flags;
+} INTERRUPT_PROPERTY;
+#pragma pack ()
+
+RETURN_STATUS
+EFIAPI
+ArmVirtTimerFdtClientLibConstructor (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ FDT_CLIENT_PROTOCOL *FdtClient;
+ CONST INTERRUPT_PROPERTY *InterruptProp;
+ UINT32 PropSize;
+ INT32 SecIntrNum, IntrNum, VirtIntrNum, HypIntrNum;
+
+ Status = gBS->LocateProtocol (&gFdtClientProtocolGuid, NULL,
+ (VOID **)&FdtClient);
+ ASSERT_EFI_ERROR (Status);
+
+ Status = FdtClient->FindCompatibleNodeProperty (FdtClient, "arm,armv7-timer",
+ "interrupts", (CONST VOID **)&InterruptProp,
+ &PropSize);
+ if (Status == EFI_NOT_FOUND) {
+ Status = FdtClient->FindCompatibleNodeProperty (FdtClient,
+ "arm,armv8-timer", "interrupts",
+ (CONST VOID **)&InterruptProp,
+ &PropSize);
+ }
+
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // - interrupts : Interrupt list for secure, non-secure, virtual and
+ // hypervisor timers, in that order.
+ //
+ ASSERT (PropSize == 36 || PropSize == 48);
+
+ SecIntrNum = SwapBytes32 (InterruptProp[0].Number)
+ + (InterruptProp[0].Type ? 16 : 0);
+ IntrNum = SwapBytes32 (InterruptProp[1].Number)
+ + (InterruptProp[1].Type ? 16 : 0);
+ VirtIntrNum = SwapBytes32 (InterruptProp[2].Number)
+ + (InterruptProp[2].Type ? 16 : 0);
+ HypIntrNum = PropSize < 48 ? 0 : SwapBytes32 (InterruptProp[3].Number)
+ + (InterruptProp[3].Type ? 16 : 0);
+
+ DEBUG ((EFI_D_INFO, "Found Timer interrupts %d, %d, %d, %d\n",
+ SecIntrNum, IntrNum, VirtIntrNum, HypIntrNum));
+
+ PcdSet32 (PcdArmArchTimerSecIntrNum, SecIntrNum);
+ PcdSet32 (PcdArmArchTimerIntrNum, IntrNum);
+ PcdSet32 (PcdArmArchTimerVirtIntrNum, VirtIntrNum);
+ PcdSet32 (PcdArmArchTimerHypIntrNum, HypIntrNum);
+
+ return EFI_SUCCESS;
+}
diff --git a/ArmVirtPkg/Library/ArmVirtTimerFdtClientLib/ArmVirtTimerFdtClientLib.inf b/ArmVirtPkg/Library/ArmVirtTimerFdtClientLib/ArmVirtTimerFdtClientLib.inf new file mode 100644 index 0000000000..bc7089f103 --- /dev/null +++ b/ArmVirtPkg/Library/ArmVirtTimerFdtClientLib/ArmVirtTimerFdtClientLib.inf @@ -0,0 +1,49 @@ +#/** @file
+# FDT client library for ARM's TimerDxe
+#
+# Copyright (c) 2016, Linaro Ltd. 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.
+#
+#
+#**/
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = ArmVirtTimerFdtClientLib
+ FILE_GUID = 77EA80CA-2EFB-4AB4-8567-230D968F6B37
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = ArmVirtTimerFdtClientLib|DXE_DRIVER
+ CONSTRUCTOR = ArmVirtTimerFdtClientLibConstructor
+
+[Sources]
+ ArmVirtTimerFdtClientLib.c
+
+[Packages]
+ ArmPkg/ArmPkg.dec
+ ArmVirtPkg/ArmVirtPkg.dec
+ MdePkg/MdePkg.dec
+
+[LibraryClasses]
+ BaseLib
+ DebugLib
+ PcdLib
+ UefiBootServicesTableLib
+
+[Protocols]
+ gFdtClientProtocolGuid ## CONSUMES
+
+[Pcd]
+ gArmTokenSpaceGuid.PcdArmArchTimerSecIntrNum
+ gArmTokenSpaceGuid.PcdArmArchTimerIntrNum
+ gArmTokenSpaceGuid.PcdArmArchTimerVirtIntrNum
+ gArmTokenSpaceGuid.PcdArmArchTimerHypIntrNum
+
+[Depex]
+ gFdtClientProtocolGuid
|