1 /**
2  * Copyright (C) 2018 IBM Corporation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *     http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 #include "cfam_access.hpp"
17 #include "p9_cfam.hpp"
18 #include "registration.hpp"
19 #include "targeting.hpp"
20 
21 #include <phosphor-logging/log.hpp>
22 
23 namespace openpower
24 {
25 namespace p9
26 {
27 
28 using namespace phosphor::logging;
29 using namespace openpower::cfam::access;
30 using namespace openpower::cfam::p9;
31 using namespace openpower::targeting;
32 
33 /**
34  * @brief Disables PCIE drivers and receiver in the PCIE root ctrl 1 register
35  * @return void
36  */
37 void cleanupPcie()
38 {
39     Targeting targets;
40     const auto& master = *(targets.begin());
41 
42     log<level::INFO>("Running P9 procedure cleanupPcie");
43 
44     // Disable the PCIE drivers and receiver
45     writeReg(master, P9_ROOT_CTRL1_CLEAR, 0x00001C00);
46 }
47 
48 REGISTER_PROCEDURE("cleanupPcie", cleanupPcie);
49 
50 } // namespace p9
51 } // namespace openpower
52