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| author | Matt Spinler <spinler@us.ibm.com> | 2017-03-09 11:23:17 -0600 |
|---|---|---|
| committer | Matt Spinler <spinler@us.ibm.com> | 2017-03-14 13:21:34 -0500 |
| commit | 83e37327235e0f5eb39d4d66c16d72833394615d (patch) | |
| tree | 7c8c6985d748f18ddf6361f24c32b7171c685b3b /procedures | |
| parent | 6419b6387728fecc3558a601f254cffc9ed6d008 (diff) | |
| download | openpower-proc-control-83e37327235e0f5eb39d4d66c16d72833394615d.tar.gz openpower-proc-control-83e37327235e0f5eb39d4d66c16d72833394615d.zip | |
Move procedures into separate files.
Procedures will now be in procedures/<chip>/.
The next commit will have the procedures register
themselves so they won't be in a hardcoded list.
Change-Id: I0ff90afe2b51aaff25b5c25bf87070c820323e30
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Diffstat (limited to 'procedures')
| -rw-r--r-- | procedures/p9/start_host.cpp | 77 | ||||
| -rw-r--r-- | procedures/p9/vcs_workaround.cpp | 64 |
2 files changed, 141 insertions, 0 deletions
diff --git a/procedures/p9/start_host.cpp b/procedures/p9/start_host.cpp new file mode 100644 index 0000000..f781e68 --- /dev/null +++ b/procedures/p9/start_host.cpp @@ -0,0 +1,77 @@ +/** + * 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 <phosphor-logging/log.hpp> +#include "cfam_access.hpp" +#include "p9_cfam.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 Starts the self boot engine on P9 position 0 to kick off a boot. + * @return void + */ +void startHost() +{ + Targeting targets; + const auto& master = *(targets.begin()); + + log<level::INFO>("Running P9 procedure startHost", + entry("NUM_PROCS=%d", targets.size())); + + //Ensure asynchronous clock mode is set + writeReg(master, P9_LL_MODE_REG, 0x00000001); + + //Clock mux select override + for (const auto& t : targets) + { + writeRegWithMask(t, P9_ROOT_CTRL8, + 0x0000000C, 0x0000000C); + } + + //Enable P9 checkstop to be reported to the BMC + + //Setup FSI2PIB to report checkstop + writeReg(master, P9_FSI_A_SI1S, 0x20000000); + + //Enable Xstop/ATTN interrupt + writeReg(master, P9_FSI2PIB_TRUE_MASK, 0x60000000); + + //Arm it + writeReg(master, P9_FSI2PIB_INTERRUPT, 0xFFFFFFFF); + + //Kick off the SBE to start the boot + + //First ensure ISTEP stepping isn't enabled + writeReg(master, P9_SCRATCH_REGISTER_8, 0x20000000); + + //Start the SBE + writeRegWithMask(master, P9_CBS_CS, 0x80000000, 0x80000000); +} + + +} +} + diff --git a/procedures/p9/vcs_workaround.cpp b/procedures/p9/vcs_workaround.cpp new file mode 100644 index 0000000..64b41c1 --- /dev/null +++ b/procedures/p9/vcs_workaround.cpp @@ -0,0 +1,64 @@ +/** + * 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 <phosphor-logging/log.hpp> +#include "cfam_access.hpp" +#include "p9_cfam.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 Performs the 'VCS Workaround' on all P9s in the system. + * @return void + */ +void vcsWorkaround() +{ + Targeting targets; + const auto& master = *(targets.begin()); + + log<level::INFO>("Running P9 procedure vcsWorkaround", + entry("NUM_PROCS=%d", targets.size())); + + //Set asynchronous clock mode + writeReg(master, P9_LL_MODE_REG, 0x00000001); + + for (const auto& t : targets) + { + //Unfence PLL controls + writeRegWithMask(t, P9_ROOT_CTRL0, + 0x00000000, 0x00010000); + + //Assert Perv chiplet endpoint reset + writeRegWithMask(t, P9_PERV_CTRL0, + 0x40000000, 0x40000000); + + //Enable Nest PLL + writeRegWithMask(t, P9_PERV_CTRL0, + 0x00000001, 0x00000001); + } +} + +} +} |

