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| author | Anthony Wilson <wilsonan@us.ibm.com> | 2018-10-24 16:37:50 -0500 |
|---|---|---|
| committer | Anthony P. Wilson <wilsonan@us.ibm.com> | 2018-10-26 05:07:13 +0000 |
| commit | f0d958dff595613dc628352bd8430029d91d54ab (patch) | |
| tree | 9c033b92056f59bf1e652c19cf5a9798c90fde81 | |
| parent | b3d71312fce2f4718088a785d96eebd762cf2104 (diff) | |
| download | openpower-proc-control-f0d958dff595613dc628352bd8430029d91d54ab.tar.gz openpower-proc-control-f0d958dff595613dc628352bd8430029d91d54ab.zip | |
Add cleanupPcie to openpower-proc-control
This disables the drivers and receiver in the
PCIE root control 1 register as follows:
BIT NAME VALUE
19 TP_RI_DC_B 0b0
20 TP_DI1_DC_B 0b0
21 TP_DI2_DC_B 0b0
This should be run on a power off.
Change-Id: I6e027260f78a3fc451a45832f6f9bcf9afc8c3b9
Signed-off-by: Anthony Wilson <wilsonan@us.ibm.com>
| -rw-r--r-- | p9_cfam.hpp | 1 | ||||
| -rw-r--r-- | procedures/p9/cleanup_pcie.cpp | 50 |
2 files changed, 51 insertions, 0 deletions
diff --git a/p9_cfam.hpp b/p9_cfam.hpp index 43bbaa5..19b6e33 100644 --- a/p9_cfam.hpp +++ b/p9_cfam.hpp @@ -22,6 +22,7 @@ static constexpr uint16_t P9_PERV_CTRL0 = 0x281A; static constexpr uint16_t P9_HB_MBX5_REG = 0x283C; static constexpr uint16_t P9_SCRATCH_REGISTER_8 = 0x283F; static constexpr uint16_t P9_ROOT_CTRL8 = 0x2918; +static constexpr uint16_t P9_ROOT_CTRL1_CLEAR = 0x2931; } } } diff --git a/procedures/p9/cleanup_pcie.cpp b/procedures/p9/cleanup_pcie.cpp new file mode 100644 index 0000000..6ec007a --- /dev/null +++ b/procedures/p9/cleanup_pcie.cpp @@ -0,0 +1,50 @@ +/**
+ * Copyright © 2018 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 <phosphor-logging/log.hpp>
+#include "cfam_access.hpp"
+#include "p9_cfam.hpp"
+#include "registration.hpp"
+#include "targeting.hpp"
+
+namespace openpower
+{
+namespace p9
+{
+
+using namespace phosphor::logging;
+using namespace openpower::cfam::access;
+using namespace openpower::cfam::p9;
+using namespace openpower::targeting;
+
+/**
+ * @brief Disables PCIE drivers and receiver in the PCIE root ctrl 1 register
+ * @return void
+ */
+void cleanupPcie()
+{
+ Targeting targets;
+ const auto& master = *(targets.begin());
+
+ log<level::INFO>("Running P9 procedure cleanupPcie");
+
+ // Disable the PCIE drivers and receiver
+ writeReg(master, P9_ROOT_CTRL1_CLEAR, 0x00001C00);
+}
+
+REGISTER_PROCEDURE("cleanupPcie", cleanupPcie);
+
+}
+}
\ No newline at end of file |
