Adding support for BeagleBoard.

[mirror_edk2.git] / EmbeddedPkg / Library / TemplateResetSystemLib / ResetSystemLib.c

diff --git a/EmbeddedPkg/Library/TemplateResetSystemLib/ResetSystemLib.c b/EmbeddedPkg/Library/TemplateResetSystemLib/ResetSystemLib.c
new file mode 100644 (file)
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+++ b/EmbeddedPkg/Library/TemplateResetSystemLib/ResetSystemLib.c
@@ -0,0 +1,103 @@
+/** @file\r
+  Template library implementation to support ResetSystem Runtime call.\r
+  \r
+  Fill in the templates with what ever makes you system reset.\r
+\r
+\r
+  Copyright (c) 2008-2009, Apple Inc. All rights reserved.\r
+  \r
+  All rights reserved. This program and the accompanying materials\r
+  are licensed and made available under the terms and conditions of the BSD License\r
+  which accompanies this distribution.  The full text of the license may be found at\r
+  http://opensource.org/licenses/bsd-license.php\r
+\r
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+\r
+#include <PiDxe.h>\r
+\r
+#include <Library/BaseLib.h>\r
+#include <Library/IoLib.h>\r
+#include <Library/EfiResetSystemLib.h>\r
+\r
+\r
+/**\r
+  Resets the entire platform.\r
+\r
+  @param  ResetType             The type of reset to perform.\r
+  @param  ResetStatus           The status code for the reset.\r
+  @param  DataSize              The size, in bytes, of WatchdogData.\r
+  @param  ResetData             For a ResetType of EfiResetCold, EfiResetWarm, or\r
+                                EfiResetShutdown the data buffer starts with a Null-terminated\r
+                                Unicode string, optionally followed by additional binary data.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+LibResetSystem (\r
+  IN EFI_RESET_TYPE   ResetType,\r
+  IN EFI_STATUS       ResetStatus,\r
+  IN UINTN            DataSize,\r
+  IN CHAR16           *ResetData OPTIONAL\r
+  )\r
+{\r
+  UINTN   Address;\r
+  UINT8   Data;\r
+  \r
+  \r
+  switch (ResetType) {\r
+  case EfiResetCold:\r
+    // system power cycle\r
+  \r
+    // Example using IoLib functions to do IO.\r
+    Address = 0x12345678;\r
+    Data = MmioRead8 (Address);\r
+    MmioWrite8 (Address, Data | 0x01);\r
+    \r
+    // Note this is a bad example asa MmioOr8 (Address, 0x01) does the same thing\r
+    break;\r
+  \r
+  case EfiResetWarm:\r
+    // not a full power cycle, maybe memory stays around. \r
+    // if not support do the same thing as EfiResetCold.\r
+    break;\r
+    \r
+  case EfiResetShutdown:\r
+    // turn off the system.\r
+    // if not support do the same thing as EfiResetCold.\r
+    break;\r
+    \r
+  default:\r
+    return EFI_INVALID_PARAMETER;\r
+  }\r
+\r
+  //\r
+  // If we reset, we would not have returned...\r
+  //\r
+  return EFI_DEVICE_ERROR;\r
+}\r
+  \r
+\r
+\r
+/**\r
+  Initialize any infrastructure required for LibResetSystem () to function.\r
+\r
+  @param  ImageHandle   The firmware allocated handle for the EFI image.\r
+  @param  SystemTable   A pointer to the EFI System Table.\r
+  \r
+  @retval EFI_SUCCESS   The constructor always returns EFI_SUCCESS.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+LibInitializeResetSystem (\r
+  IN EFI_HANDLE        ImageHandle,\r
+  IN EFI_SYSTEM_TABLE  *SystemTable\r
+  )\r
+{\r
+  return EFI_SUCCESS;\r
+}\r
+\r