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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/import/chips/p9/procedures/hwp/memory/p9_mss_volt.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2015,2017 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* 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. */
/* */
/* IBM_PROLOG_END_TAG */
///
/// @file p9_mss_volt.C
/// @brief Calculate and save off rail voltages
///
// *HWP HWP Owner: Jacob Harvey <jlharvey@us.ibm.com>
// *HWP HWP Backup: Andre A. Marin <aamarin@us.ibm.com>
// *HWP FW Owner: Brian Silver <bsilver@us.ibm.com>
// *HWP Team: Memory
// *HWP Level: 3
// *HWP Consumed by: FSP:HB
#include <p9_mss_volt.H>
// std lib
#include <vector>
#include <map>
// fapi2
#include <fapi2.H>
// mss lib
#include <lib/spd/spd_factory.H>
#include <lib/spd/common/spd_decoder.H>
#include <lib/eff_config/attr_setters.H>
#include <lib/utils/c_str.H>
#include <lib/utils/pos.H>
#include <lib/utils/find.H>
#include <lib/utils/checker.H>
using fapi2::TARGET_TYPE_MCBIST;
using fapi2::TARGET_TYPE_MCS;
using fapi2::TARGET_TYPE_MCA;
using fapi2::TARGET_TYPE_DIMM;
using fapi2::FAPI2_RC_SUCCESS;
extern "C"
{
///
/// @brief Calculate and save off rail voltages
/// @param[in] i_targets vector of controllers (e.g., MCS)
/// @return FAPI2_RC_SUCCESS iff ok
///
fapi2::ReturnCode p9_mss_volt( const std::vector< fapi2::Target<TARGET_TYPE_MCS> >& i_targets )
{
// Loop through MCS
for (const auto& l_mcs : i_targets)
{
FAPI_INF("Populating decoder cache for %s", mss::c_str(l_mcs));
//Factory cache is per MCS
std::map<uint32_t, std::shared_ptr<mss::spd::decoder> > l_factory_caches;
FAPI_TRY( mss::spd::populate_decoder_caches(l_mcs, l_factory_caches),
"Failed to populate decoder cache");
// Get dimms for each MCS
for ( const auto& l_dimm : mss::find_targets<TARGET_TYPE_DIMM> (l_mcs))
{
const auto l_dimm_pos = mss::pos(l_dimm);
// Find decoder factory for this dimm position
auto l_it = l_factory_caches.find(l_dimm_pos);
// Check to make sure it's valid
// TODO - RTC 152390 change factory check
FAPI_TRY( mss::check::spd::invalid_cache(l_dimm,
l_it != l_factory_caches.end(),
l_dimm_pos),
"Failed to get valid cache");
{
uint8_t l_dimm_nominal = 0;
uint8_t l_dimm_endurant = 0;
// Read nominal and endurant bits from SPD, 0 = 1.2V is not operable and endurant, 1 = 1.2 is valid
FAPI_TRY( l_it->second->operable_nominal_voltage(l_dimm, l_dimm_nominal));
FAPI_TRY( l_it->second->endurant_nominal_voltage(l_dimm, l_dimm_endurant));
//Check to make sure 1.2 V is both operable and endurant, fail if it is not
FAPI_ASSERT ( (l_dimm_nominal == mss::spd::OPERABLE) && (l_dimm_endurant == mss::spd::ENDURANT),
fapi2::MSS_VOLT_DDR_TYPE_REQUIRED_VOLTAGE().
set_OPERABLE(l_dimm_nominal).
set_ENDURANT(l_dimm_endurant).
set_DIMM_TARGET(l_dimm),
"%s: DIMM is not operable (%d)"
" and/or endurant (%d) at 1.2V",
mss::c_str(l_dimm),
l_dimm_nominal,
l_dimm_endurant);
} // scope
} // l_dimm
// Set the attributes for this MCS, values are in mss_const.H
// TK : will need to change attribute target according to voltage rails in the future
FAPI_TRY (mss::set_voltage_attributes (l_mcs,
mss::DDR4_NOMINAL_VOLTAGE,
mss::DDR4_VPP_VOLTAGE),
"Failed to set volt attributes");
} // mcs
FAPI_INF("End mss volt");
return FAPI2_RC_SUCCESS;
fapi_try_exit:
return fapi2::current_err;
} // p9_mss_volt
} //extern "C"
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