Moving OMAP 3530 code out of BeagleBoard package into its own package

[mirror_edk2.git] / Omap35xxPkg / Library / BeagleBoardSystemLib / BeagleBoardSystemLib.c

diff --git a/Omap35xxPkg/Library/BeagleBoardSystemLib/BeagleBoardSystemLib.c b/Omap35xxPkg/Library/BeagleBoardSystemLib/BeagleBoardSystemLib.c
new file mode 100644 (file)
index 0000000..a03ef57
--- /dev/null
+++ b/Omap35xxPkg/Library/BeagleBoardSystemLib/BeagleBoardSystemLib.c
@@ -0,0 +1,110 @@
+/** @file
+
+  Copyright (c) 2008-2009, Apple Inc. All rights reserved.
+  
+  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.
+
+**/
+
+#include <Uefi.h>
+
+#include <Library/ArmLib.h>
+#include <Library/CacheMaintenanceLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/IoLib.h>
+#include <Library/PcdLib.h>
+#include <Library/DebugLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/BeagleBoardSystemLib.h>
+
+#include <Omap3530/Omap3530.h>
+
+VOID
+ResetSystem (
+  IN EFI_RESET_TYPE   ResetType
+  )
+{
+  switch (ResetType) {
+    case EfiResetWarm:
+      //Perform warm reset of the system.
+      GoLittleEndian(PcdGet32(PcdFlashFvMainBase));
+      break;
+    case EfiResetCold:
+    case EfiResetShutdown:
+    default:
+      //Perform cold reset of the system.
+      MmioOr32(PRM_RSTCTRL, RST_DPLL3);
+      while ((MmioRead32(PRM_RSTST) & GLOBAL_COLD_RST) != 0x1);
+      break;
+  }
+
+  //Should never come here.
+  ASSERT(FALSE);
+}
+
+VOID
+ShutdownEfi (
+  VOID
+  )
+{
+  EFI_STATUS              Status;
+  UINTN                   MemoryMapSize;
+  EFI_MEMORY_DESCRIPTOR   *MemoryMap;
+  UINTN                   MapKey;
+  UINTN                   DescriptorSize;
+  UINTN                   DescriptorVersion;
+  UINTN                   Pages;
+
+  MemoryMap = NULL;
+  MemoryMapSize = 0;
+  do {
+    Status = gBS->GetMemoryMap (
+                    &MemoryMapSize,
+                    MemoryMap,
+                    &MapKey,
+                    &DescriptorSize,
+                    &DescriptorVersion
+                    );
+    if (Status == EFI_BUFFER_TOO_SMALL) {
+
+      Pages = EFI_SIZE_TO_PAGES (MemoryMapSize) + 1;
+      MemoryMap = AllocatePages (Pages);
+    
+      //
+      // Get System MemoryMap
+      //
+      Status = gBS->GetMemoryMap (
+                      &MemoryMapSize,
+                      MemoryMap,
+                      &MapKey,
+                      &DescriptorSize,
+                      &DescriptorVersion
+                      );
+      // Don't do anything between the GetMemoryMap() and ExitBootServices()
+      if (!EFI_ERROR (Status)) {
+        Status = gBS->ExitBootServices (gImageHandle, MapKey);
+        if (EFI_ERROR (Status)) {
+          FreePages (MemoryMap, Pages);
+          MemoryMap = NULL;
+          MemoryMapSize = 0;
+        }
+      }
+    }
+  } while (EFI_ERROR (Status));
+
+  //Clean and invalidate caches.
+  WriteBackInvalidateDataCache();
+  InvalidateInstructionCache();
+
+  //Turning off Caches and MMU
+  ArmDisableDataCache();
+  ArmDisableInstructionCache();
+  ArmDisableMmu();
+}
+