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 This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 **/ 14 15 #include <Uefi.h> 16 17 #include <Library/UefiRuntimeServicesTableLib.h> 18 #include <Library/QNCAccessLib.h> 19 20 /** 21 The user Entry Point for Application. The user code starts with this function 22 as the real entry point for the application. 23 24 @param[in] ImageHandle The firmware allocated handle for the EFI image. 25 @param[in] SystemTable A pointer to the EFI System Table. 26 27 @retval EFI_SUCCESS The entry point is executed successfully. 28 @retval other Some error occurs when executing this entry point. 29 30 **/ 31 EFI_STATUS 32 EFIAPI 33 UefiMain ( 34 IN EFI_HANDLE ImageHandle, 35 IN EFI_SYSTEM_TABLE *SystemTable 36 ) 37 { 38 // 39 // Set 'B_CFG_STICKY_RW_FORCE_RECOVERY' sticky bit so we know we need to do a recovery following warm reset 40 // 41 QNCAltPortWrite ( 42 QUARK_SCSS_SOC_UNIT_SB_PORT_ID, 43 QUARK_SCSS_SOC_UNIT_CFG_STICKY_RW, 44 QNCAltPortRead (QUARK_SCSS_SOC_UNIT_SB_PORT_ID, QUARK_SCSS_SOC_UNIT_CFG_STICKY_RW) | B_CFG_STICKY_RW_FORCE_RECOVERY 45 ); 46 47 // 48 // Do a warm reset 49 // 50 gRT->ResetSystem (EfiResetWarm, EFI_SUCCESS, 0, NULL); 51 52 return EFI_SUCCESS; 53 } 54
