Upload BSD-licensed Vlv2TbltDevicePkg and Vlv2DeviceRefCodePkg to

https://svn.code.sf.net/p/edk2/code/trunk/edk2/, 

which are for MinnowBoard MAX open source project.


Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: David Wei <david.wei@intel.com>
Reviewed-by: Mike Wu <mike.wu@intel.com>
Reviewed-by: Hot Tian <hot.tian@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16599 6f19259b-4bc3-4df7-8a09-765794883524

Vlv2TbltDevicePkg/Library/StallSmmLib/StallSmm.c

@@ -0,0 +1,94 @@
+/*++
+
+Copyright (c)  1999  - 2014, Intel Corporation. All rights reserved
+                                                                                   
+
+  This program and the accompanying materials are licensed and made available under
+
+  the terms and conditions of the BSD License that 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.    
+
+                                                                                   
+
+
+
+Module Name:
+
+  SmmIo.c
+
+Abstract:
+
+  SMM I/O access utility implementation file, for Ia32
+
+--*/
+
+//
+// Include files
+//
+#include "Library/StallSmmLib.h"
+#include "Pi/PiSmmCis.h"
+#include "PiDxe.h"
+#include <Library/IoLib.h>
+#include <Library/PcdLib.h>
+#include "PchAccess.h"
+
+/**
+  Delay for at least the request number of microseconds.
+  Timer used is ACPI time counter, which has 1us granularity.
+
+  @param Microseconds  Number of microseconds to delay.
+
+  @retval None
+
+**/
+VOID
+SmmStall (
+  IN  UINTN   Microseconds
+  )
+{
+  UINTN   Ticks;
+  UINTN   Counts;
+  UINTN   CurrentTick;
+  UINTN   OriginalTick;
+  UINTN   RemainingTick;
+  UINT16  AcpiBaseAddr;
+
+  if (Microseconds == 0) {
+    return;
+  }
+
+  AcpiBaseAddr = PchLpcPciCfg16 (R_PCH_LPC_ACPI_BASE) & B_PCH_LPC_ACPI_BASE_BAR;
+
+  OriginalTick = IoRead32 (AcpiBaseAddr + R_PCH_ACPI_PM1_TMR);
+  CurrentTick = OriginalTick;
+
+  //
+  // The timer frequency is 3.579545 MHz, so 1 ms corresponds 3.58 clocks
+  //
+  Ticks = Microseconds * 358 / 100 + OriginalTick + 1;
+
+  //
+  // The loops needed by timer overflow
+  //
+  Counts = Ticks / V_PCH_ACPI_PM1_TMR_MAX_VAL;
+
+  //
+  // Remaining clocks within one loop
+  //
+  RemainingTick = Ticks % V_PCH_ACPI_PM1_TMR_MAX_VAL;
+
+  //
+  // not intend to use TMROF_STS bit of register PM1_STS, because this adds extra
+  // one I/O operation, and maybe generate SMI
+  //
+  while ((Counts != 0) || (RemainingTick > CurrentTick)) {
+    CurrentTick = IoRead32 (AcpiBaseAddr + R_PCH_ACPI_PM1_TMR);

Vlv2TbltDevicePkg/Library/StallSmmLib/StallSmmLib.inf

@@ -0,0 +1,56 @@
+#/*++
+#
+# Copyright (c)  1999  - 2014, Intel Corporation. All rights reserved
+#                                                                                  
+
+# This program and the accompanying materials are licensed and made available under
+
+# the terms and conditions of the BSD License that 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.    
+
+#                                                                                  
+
+
+#
+#  Module Name:
+#
+#   SmmStallLib.inf
+#
+#  Abstract:
+#
+#    Component description file for SmmStall library
+#
+#--*/
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = StallSmmLib
+  FILE_GUID                      = A6A16CCB-91B0-42f4-B4F3-D16D7A8662E6
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = StallSmmLib
+
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = IA32 X64 IPF EBC
+#
+
+[Sources]
+ StallSmm.c
+
+
+[Packages]
+  MdePkg/MdePkg.dec
+  Vlv2TbltDevicePkg/PlatformPkg.dec
+  Vlv2DeviceRefCodePkg/Vlv2DeviceRefCodePkg.dec