diff options
| author | Olivier Martin <Olivier.Martin@arm.com> | 2015-05-27 15:06:11 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@Edk2> | 2015-05-27 15:06:11 +0000 |
| commit | e0ae276139a24baea95f6fc2f97892263d0e0443 (patch) | |
| tree | 143df5df0c99efad8c5a4e8625655e36b4e1db57 /ArmPlatformPkg/ArmJunoPkg/Drivers/ArmJunoDxe/AcpiTables.c | |
| parent | 0ad3c50558955afddcc03b5dfbce0b53665cbbff (diff) | |
| download | edk2-platforms-e0ae276139a24baea95f6fc2f97892263d0e0443.tar.xz | |
ArmPlatformPkg/ArmJunoPkg: ACPI PCI Support
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <Olivier.Martin@arm.com>
Reviewed-by: Ronald Cron <Ronald.Cron@arm.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17522 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPlatformPkg/ArmJunoPkg/Drivers/ArmJunoDxe/AcpiTables.c')
| -rw-r--r-- | ArmPlatformPkg/ArmJunoPkg/Drivers/ArmJunoDxe/AcpiTables.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/ArmPlatformPkg/ArmJunoPkg/Drivers/ArmJunoDxe/AcpiTables.c b/ArmPlatformPkg/ArmJunoPkg/Drivers/ArmJunoDxe/AcpiTables.c new file mode 100644 index 0000000000..bf08346434 --- /dev/null +++ b/ArmPlatformPkg/ArmJunoPkg/Drivers/ArmJunoDxe/AcpiTables.c @@ -0,0 +1,78 @@ +/** @file
+
+ This file contains support for ACPI Tables that are generated at boot time.
+
+ Copyright (c) 2015, ARM 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 "ArmPlatform.h"
+#include "ArmJunoDxeInternal.h"
+
+#include <IndustryStandard/MemoryMappedConfigurationSpaceAccessTable.h>
+
+/*
+ * Memory Mapped Configuration Space Access Table (MCFG)
+ */
+typedef struct {
+ EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_BASE_ADDRESS_TABLE_HEADER Header;
+ EFI_ACPI_MEMORY_MAPPED_ENHANCED_CONFIGURATION_SPACE_BASE_ADDRESS_ALLOCATION_STRUCTURE Entry;
+} MEMORY_MAPPED_CONFIGURATION_SPACE_BASE_ACCESS_TABLE;
+
+MEMORY_MAPPED_CONFIGURATION_SPACE_BASE_ACCESS_TABLE mAcpiMcfgTable = {
+ {
+ ARM_ACPI_HEADER (
+ EFI_ACPI_5_0_PCI_EXPRESS_MEMORY_MAPPED_CONFIGURATION_SPACE_BASE_ADDRESS_DESCRIPTION_TABLE_SIGNATURE,
+ MEMORY_MAPPED_CONFIGURATION_SPACE_BASE_ACCESS_TABLE,
+ EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_TABLE_REVISION
+ ),
+ 0, // Reserved
+ }, {
+ FixedPcdGet32 (PcdPciConfigurationSpaceBaseAddress),
+ 0, // PciSegmentGroupNumber
+ FixedPcdGet32 (PcdPciBusMin),
+ FixedPcdGet32 (PcdPciBusMax),
+ 0 // Reserved;
+ }
+};
+
+/**
+ * Callback called when ACPI Protocol is installed
+ */
+VOID
+AcpiPciNotificationEvent (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ EFI_STATUS Status;
+ EFI_ACPI_TABLE_PROTOCOL *AcpiTableProtocol;
+ UINTN AcpiTableKey;
+
+ //
+ // Ensure the ACPI protocol is installed
+ //
+ Status = gBS->LocateProtocol (
+ &gEfiAcpiTableProtocolGuid,
+ NULL,
+ (VOID**)&AcpiTableProtocol
+ );
+ if (EFI_ERROR (Status)) {
+ return;
+ }
+
+ //
+ // Install MCFG Table
+ //
+ AcpiTableKey = 0;
+ Status = AcpiTableProtocol->InstallAcpiTable (AcpiTableProtocol, &mAcpiMcfgTable, sizeof (mAcpiMcfgTable), &AcpiTableKey);
+ ASSERT_EFI_ERROR (Status);
+}
|