QuarkPlatformPkg/Application/ForceRecovery/ForceRecovery.c

   1 /** @file
   2   Application that sets a sticky bit to force recovery on next reset.
   3
   4   Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
   5   SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #include <Uefi.h>
  10
  11 #include <Library/UefiRuntimeServicesTableLib.h>
  12 #include <Library/QNCAccessLib.h>
  13
  14 /**
  15   The user Entry Point for Application. The user code starts with this function
  16   as the real entry point for the application.
  17
  18   @param[in] ImageHandle    The firmware allocated handle for the EFI image.
  19   @param[in] SystemTable    A pointer to the EFI System Table.
  20
  21   @retval EFI_SUCCESS       The entry point is executed successfully.
  22   @retval other             Some error occurs when executing this entry point.
  23
  24 **/
  25 EFI_STATUS
  26 EFIAPI
  27 UefiMain (
  28   IN EFI_HANDLE        ImageHandle,
  29   IN EFI_SYSTEM_TABLE  *SystemTable
  30   )
  31 {
  32   //
  33   // Set 'B_CFG_STICKY_RW_FORCE_RECOVERY' sticky bit so we know we need to do a recovery following warm reset
  34   //
  35   QNCAltPortWrite (
  36     QUARK_SCSS_SOC_UNIT_SB_PORT_ID,
  37     QUARK_SCSS_SOC_UNIT_CFG_STICKY_RW,
  38     QNCAltPortRead (QUARK_SCSS_SOC_UNIT_SB_PORT_ID, QUARK_SCSS_SOC_UNIT_CFG_STICKY_RW) | B_CFG_STICKY_RW_FORCE_RECOVERY
  39     );
  40
  41   //
  42   // Do a warm reset
  43   //
  44   gRT->ResetSystem (EfiResetWarm, EFI_SUCCESS, 0, NULL);
  45
  46   return EFI_SUCCESS;
  47 }