update to acpica-unix2-20140114
acpica-unix2-20130823
PANKOVs restructure

*** 1,14 ****
- 
  /******************************************************************************
   *
   * Module Name: hwacpi - ACPI Hardware Initialization/Mode Interface
   *
   *****************************************************************************/
  
  /*
!  * Copyright (C) 2000 - 2011, Intel Corp.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
--- 1,13 ----
  /******************************************************************************
   *
   * Module Name: hwacpi - ACPI Hardware Initialization/Mode Interface
   *
   *****************************************************************************/
  
  /*
!  * Copyright (C) 2000 - 2014, Intel Corp.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
*** 50,59 ****
--- 49,59 ----
  
  #define _COMPONENT          ACPI_HARDWARE
          ACPI_MODULE_NAME    ("hwacpi")
  
  
+ #if (!ACPI_REDUCED_HARDWARE) /* Entire module */
  /******************************************************************************
   *
   * FUNCTION:    AcpiHwSetMode
   *
   * PARAMETERS:  Mode            - SYS_MODE_ACPI or SYS_MODE_LEGACY
*** 73,82 ****
--- 73,90 ----
      UINT32                  Retry;
  
  
      ACPI_FUNCTION_TRACE (HwSetMode);
  
+ 
+     /* If the Hardware Reduced flag is set, machine is always in acpi mode */
+ 
+     if (AcpiGbl_ReducedHardware)
+     {
+         return_ACPI_STATUS (AE_OK);
+     }
+ 
      /*
       * ACPI 2.0 clarified that if SMI_CMD in FADT is zero,
       * system does not support mode transition.
       */
      if (!AcpiGbl_FADT.SmiCommand)
*** 110,120 ****
                          (UINT32) AcpiGbl_FADT.AcpiEnable, 8);
          ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Attempting to enable ACPI mode\n"));
          break;
  
      case ACPI_SYS_MODE_LEGACY:
- 
          /*
           * BIOS should clear all fixed status bits and restore fixed event
           * enable bits to default
           */
          Status = AcpiHwWritePort (AcpiGbl_FADT.SmiCommand,
--- 118,127 ----
*** 122,131 ****
--- 129,139 ----
          ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
                      "Attempting to enable Legacy (non-ACPI) mode\n"));
          break;
  
      default:
+ 
          return_ACPI_STATUS (AE_BAD_PARAMETER);
      }
  
      if (ACPI_FAILURE (Status))
      {
*** 139,155 ****
       * do so, but allow faster systems to proceed more quickly.
       */
      Retry = 3000;
      while (Retry)
      {
!         if (AcpiHwGetMode() == Mode)
          {
              ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Mode %X successfully enabled\n",
                  Mode));
              return_ACPI_STATUS (AE_OK);
          }
!         AcpiOsStall(1000);
          Retry--;
      }
  
      ACPI_ERROR ((AE_INFO, "Hardware did not change modes"));
      return_ACPI_STATUS (AE_NO_HARDWARE_RESPONSE);
--- 147,163 ----
       * do so, but allow faster systems to proceed more quickly.
       */
      Retry = 3000;
      while (Retry)
      {
!         if (AcpiHwGetMode () == Mode)
          {
              ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Mode %X successfully enabled\n",
                  Mode));
              return_ACPI_STATUS (AE_OK);
          }
!         AcpiOsStall (ACPI_USEC_PER_MSEC);
          Retry--;
      }
  
      ACPI_ERROR ((AE_INFO, "Hardware did not change modes"));
      return_ACPI_STATUS (AE_NO_HARDWARE_RESPONSE);
*** 178,187 ****
--- 186,202 ----
  
  
      ACPI_FUNCTION_TRACE (HwGetMode);
  
  
+     /* If the Hardware Reduced flag is set, machine is always in acpi mode */
+ 
+     if (AcpiGbl_ReducedHardware)
+     {
+         return_UINT32 (ACPI_SYS_MODE_ACPI);
+     }
+ 
      /*
       * ACPI 2.0 clarified that if SMI_CMD in FADT is zero,
       * system does not support mode transition.
       */
      if (!AcpiGbl_FADT.SmiCommand)
*** 202,206 ****
--- 217,223 ----
      else
      {
          return_UINT32 (ACPI_SYS_MODE_LEGACY);
      }
  }
+ 
+ #endif /* !ACPI_REDUCED_HARDWARE */