New procedure to set synchronous FSI clock mode

This procedure is required when switching to external
cronus mode which needs synchronous FSI clock mode set
as opposed to the asynchronous mode required by the Open FSI
driver.

Change-Id: I509d113bd5cdadedb64b0275628f95572c21b0a3
Signed-off-by: Matt Spinler <spinler@us.ibm.com>

1 files changed, 48 insertions, 0 deletions

diff --git a/procedures/p9/set_sync_fsi_clock_mode.cpp b/procedures/p9/set_sync_fsi_clock_mode.cpp
new file mode 100644
index 0000000..1751a9d
--- /dev/null
+++ b/procedures/p9/set_sync_fsi_clock_mode.cpp
@@ -0,0 +1,48 @@
+/**
+ * Copyright © 2017 IBM Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "cfam_access.hpp"
+#include "p9_cfam.hpp"
+#include "registration.hpp"
+#include "targeting.hpp"
+
+namespace openpower
+{
+namespace p9
+{
+
+using namespace openpower::cfam::access;
+using namespace openpower::cfam::p9;
+using namespace openpower::targeting;
+
+
+/**
+ * @Brief Sets the P9 FSI clock to synchronous mode.
+ */
+void setSynchronousFSIClock()
+{
+    Targeting targets;
+    const auto& master = *(targets.begin());
+
+    //Set bit 31 to 0
+    writeRegWithMask(master, P9_LL_MODE_REG, 0x00000000, 0x00000001);
+}
+
+
+REGISTER_PROCEDURE("setSyncFSIClock", setSynchronousFSIClock);
+
+}
+}
+