1 /**
2  * Copyright (C) 2017 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 namespace openpower
22 {
23 namespace p9
24 {
25 
26 using namespace openpower::cfam::access;
27 using namespace openpower::cfam::p9;
28 using namespace openpower::targeting;
29 
30 /**
31  * @Brief Sets the P9 FSI clock to synchronous mode.
32  */
33 void setSynchronousFSIClock()
34 {
35     Targeting targets;
36     const auto& master = *(targets.begin());
37 
38     // Set bit 31 to 0
39     writeRegWithMask(master, P9_LL_MODE_REG, 0x00000000, 0x00000001);
40 }
41 
42 REGISTER_PROCEDURE("setSyncFSIClock", setSynchronousFSIClock);
43 
44 } // namespace p9
45 } // namespace openpower
46