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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/import/chips/p9/procedures/hwp/memory/lib/workarounds/ccs_workarounds.H $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 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 ccs_workarounds.H
/// @brief Contains CCS workarounds
///
// *HWP HWP Owner: Stephen Glancy <sglancy@us.ibm.com>
// *HWP HWP Backup: Louis Stermole <stermole@us.ibm.com>
// *HWP Team: Memory
// *HWP Level: 3
// *HWP Consumed by: FSP:HB Memory Lab
#ifndef _CCS_WORKAROUNDS_H
#define _CCS_WORKAROUNDS_H
#include <fapi2.H>
#include <p9_mc_scom_addresses.H>
#include <generic/memory/lib/utils/c_str.H>
#include <generic/memory/lib/utils/find.H>
#include <lib/ccs/ccs.H>
namespace mss
{
namespace ccs
{
namespace workarounds
{
///
/// @brief Issues the PDA exit command
/// @param[in] i_target - the DIMM target on which to operate
/// @param[in] i_rank - the rank on which to operate
/// @param[in,out] io_program - the CCS program
/// @return fapi2::ReturnCode - SUCCESS iff everything executes successfully
/// @note The PHY traps both the a-side and b-side MRS's into the same shadow register
/// After the a-side MRS exits PDA, the b-side MRS will not be taken out of PDA mode
/// To workaround this problem, a-side MRS is issued, then the shadow register is modified to have PDA mode enabled
/// Then the b-side MRS is issued
///
fapi2::ReturnCode exit( const fapi2::Target<fapi2::TARGET_TYPE_DIMM>& i_target,
const uint64_t i_rank,
ccs::program<fapi2::TARGET_TYPE_MCBIST>& io_program );
///
/// @brief Re-enables PDA mode on a given rank in the shadow registers
/// @param[in] i_target - the MCA target on which to operate
/// @param[in] i_rank - the rank on which to operate
/// @return fapi2::ReturnCode - SUCCESS iff everything executes successfully
///
fapi2::ReturnCode enable_pda_shadow_reg( const fapi2::Target<fapi2::TARGET_TYPE_MCA>& i_target,
const uint64_t i_rank );
} // ns workarounds
} // ns ccs
} // ns mss
#endif
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