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
UefiMain(IN EFI_HANDLE ImageHandle,IN EFI_SYSTEM_TABLE * SystemTable)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