diff options
Diffstat (limited to 'ArmVirtPkg')
| -rw-r--r-- | ArmVirtPkg/Library/FdtPciPcdProducerLib/FdtPciPcdProducerLib.c | 62 | ||||
| -rw-r--r-- | ArmVirtPkg/Library/FdtPciPcdProducerLib/FdtPciPcdProducerLib.inf | 47 |
2 files changed, 109 insertions, 0 deletions
diff --git a/ArmVirtPkg/Library/FdtPciPcdProducerLib/FdtPciPcdProducerLib.c b/ArmVirtPkg/Library/FdtPciPcdProducerLib/FdtPciPcdProducerLib.c new file mode 100644 index 0000000000..cc60940d48 --- /dev/null +++ b/ArmVirtPkg/Library/FdtPciPcdProducerLib/FdtPciPcdProducerLib.c @@ -0,0 +1,62 @@ +/** @file
+ FDT client library for consumers of PCI related dynamic PCDs
+
+ 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>
+
+RETURN_STATUS
+EFIAPI
+FdtPciPcdProducerLibConstructor (
+ VOID
+ )
+{
+ UINT64 PciExpressBaseAddress;
+ FDT_CLIENT_PROTOCOL *FdtClient;
+ CONST UINT64 *Reg;
+ UINT32 RegElemSize, RegSize;
+ EFI_STATUS Status;
+
+ PciExpressBaseAddress = PcdGet64 (PcdPciExpressBaseAddress);
+ if (PciExpressBaseAddress != MAX_UINT64) {
+ return EFI_SUCCESS;
+ }
+
+ Status = gBS->LocateProtocol (&gFdtClientProtocolGuid, NULL,
+ (VOID **)&FdtClient);
+ ASSERT_EFI_ERROR (Status);
+
+ Status = FdtClient->FindCompatibleNodeReg (FdtClient,
+ "pci-host-ecam-generic", (CONST VOID **)&Reg,
+ &RegElemSize, &RegSize);
+
+ if (EFI_ERROR (Status)) {
+ PciExpressBaseAddress = 0;
+ } else {
+ ASSERT (RegElemSize == sizeof (UINT64));
+ PciExpressBaseAddress = SwapBytes64 (*Reg);
+
+ PcdSetBool (PcdPciDisableBusEnumeration, FALSE);
+ }
+
+ PcdSet64 (PcdPciExpressBaseAddress, PciExpressBaseAddress);
+
+ return RETURN_SUCCESS;
+}
diff --git a/ArmVirtPkg/Library/FdtPciPcdProducerLib/FdtPciPcdProducerLib.inf b/ArmVirtPkg/Library/FdtPciPcdProducerLib/FdtPciPcdProducerLib.inf new file mode 100644 index 0000000000..1ba71abea7 --- /dev/null +++ b/ArmVirtPkg/Library/FdtPciPcdProducerLib/FdtPciPcdProducerLib.inf @@ -0,0 +1,47 @@ +#/** @file
+# FDT client library for consumers of PCI related dynamic PCDs
+#
+# 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 = FdtPciPcdProducerLib
+ FILE_GUID = D584275B-BF1E-4DF8-A53D-980F5645C5E7
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = PciPcdProducerLib|DXE_DRIVER UEFI_DRIVER
+ CONSTRUCTOR = FdtPciPcdProducerLibConstructor
+
+[Sources]
+ FdtPciPcdProducerLib.c
+
+[Packages]
+ ArmVirtPkg/ArmVirtPkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ MdePkg/MdePkg.dec
+
+[LibraryClasses]
+ BaseLib
+ DebugLib
+ PcdLib
+ UefiBootServicesTableLib
+
+[Protocols]
+ gFdtClientProtocolGuid ## CONSUMES
+
+[Pcd]
+ gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress ## PRODUCES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdPciDisableBusEnumeration ## PRODUCES
+
+[Depex]
+ gFdtClientProtocolGuid
|