1 files changed, 111 insertions, 0 deletions
diff --git a/Vlv2TbltDevicePkg/Library/PlatformCmosLib/PlatformCmosLib.c b/Vlv2TbltDevicePkg/Library/PlatformCmosLib/PlatformCmosLib.c
new file mode 100644
index 0000000000..10d0573bf3
--- /dev/null
+++ b/Vlv2TbltDevicePkg/Library/PlatformCmosLib/PlatformCmosLib.c
@@ -0,0 +1,111 @@
+/*++
+
+Copyright (c) 2010 - 2014, Intel Corporation. All rights reserved.<BR>
+                                                                                   
+  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:
+
+  CmosTable.h
+
+Abstract:
+
+--*/
+
+#include <Base.h>
+#include <Library/IoLib.h>
+#include <Library/PlatformCmosLib.h>
+#include "CmosMap.h"
+#include <PchAccess.h>
+#include "PlatformBaseAddresses.h"
+
+#define DEFAULT_VALUE          0
+#define  DEFAULT_ATTRIBUTES     0
+#define  EXCLUDE_FROM_CHECKSUM   CMOS_ATTRIBUTE_EXCLUDE_FROM_CHECKSUM
+
+#define CMOS_DEBUG_PRINT_LEVEL_DEFAULT_VALUE      0x46   // EFI_D_WARN|EFI_D_INFO|EFI_D_LOAD
+#define CMOS_DEBUG_PRINT_LEVEL_3_DEFAULT_VALUE    0x80   // EFI_D_ERROR
+
+//
+// Add the CMOS entry below
+//
+CMOS_ENTRY mCmosTable[] = {
+{ CPU_HT_POLICY, CPU_HT_POLICY_ENABLED, EXCLUDE_FROM_CHECKSUM },
+{ TPM_POLICY, TPM_POLICY_ENABLED, DEFAULT_ATTRIBUTES },
+{ CMOS_LCDPANELTYPE_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
+{ CMOS_LCDPANELSCALING_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
+{ CMOS_IGDBOOTTYPE_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
+{ CMOS_BACKLIGHT_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
+{ CMOS_LFP_PANEL_COLOR_DEPTH_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
+{ CMOS_EDP_ACTIVE_LFP_CONFIG_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
+{ CMOS_PRIMARY_DISPLAY_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
+{ CMOS_IGD_DISPLAY_PIPE_B_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
+{ CMOS_SDVOPANELTYPE_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
+{ CMOS_PLATFORM_RESET_OS, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
+{ CMOS_CPU_BSP_SELECT, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
+{ CMOS_CPU_RATIO_OFFSET, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
+{ CMOS_ICH_PORT80_OFFSET, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
+{ CMOS_MAXRATIO_CONFIG_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
+{ RTC_ADDRESS_CENTURY, RTC_ADDRESS_CENTURY_DEFAULT, CMOS_ATTRIBUTE_EXCLUDE_FROM_CHECKSUM },
+{ CMOS_POST_CODE_BREAK_REG, DEFAULT_VALUE, EXCLUDE_FROM_CHECKSUM },
+{ CMOS_POST_CODE_BREAK_1_REG, DEFAULT_VALUE, EXCLUDE_FROM_CHECKSUM },
+{ CMOS_POST_CODE_BREAK_2_REG, DEFAULT_VALUE, EXCLUDE_FROM_CHECKSUM },
+{ CMOS_POST_CODE_BREAK_3_REG, DEFAULT_VALUE, EXCLUDE_FROM_CHECKSUM },
+{ CMOS_DEBUG_PRINT_LEVEL_REG, CMOS_DEBUG_PRINT_LEVEL_DEFAULT_VALUE, EXCLUDE_FROM_CHECKSUM },
+{ CMOS_DEBUG_PRINT_LEVEL_1_REG, DEFAULT_VALUE, EXCLUDE_FROM_CHECKSUM },
+{ CMOS_DEBUG_PRINT_LEVEL_2_REG, DEFAULT_VALUE, EXCLUDE_FROM_CHECKSUM },
+{ CMOS_DEBUG_PRINT_LEVEL_3_REG, CMOS_DEBUG_PRINT_LEVEL_3_DEFAULT_VALUE, EXCLUDE_FROM_CHECKSUM },
+};
+
+/**
+  Funtion to return platform CMOS entry.
+
+  @param [out]  CmosEntry  Platform CMOS entry.
+
+  @param [out]  CmosEntryCount Number of platform CMOS entry.
+
+  @return Status.
+**/
+RETURN_STATUS
+EFIAPI
+GetPlatformCmosEntry (
+  OUT CMOS_ENTRY  **CmosEntry,
+  OUT UINTN       *CmosEntryCount
+  )
+{
+  *CmosEntry = mCmosTable;
+  *CmosEntryCount = sizeof(mCmosTable)/sizeof(mCmosTable[0]);
+  return RETURN_SUCCESS;
+}
+
+/**
+  Function to check if Battery lost or CMOS cleared.
+
+  @reval TRUE  Battery is always present.
+  @reval FALSE CMOS is cleared.
+**/
+BOOLEAN
+EFIAPI
+CheckCmosBatteryStatus (
+  VOID
+  )
+{
+  //
+  // Check if the CMOS battery is present
+  // Checks RTC_PWR_STS bit in the GEN_PMCON_1 register
+  //
+
+  if ((MmioRead8 (PMC_BASE_ADDRESS + R_PCH_PMC_GEN_PMCON_1) & B_PCH_PMC_GEN_PMCON_RTC_PWR_STS) == 0) {
+    return TRUE;
+  } else {
+    return FALSE;
+  }
+}