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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/hwpf/hwp/slave_sbe/proc_spless_sbe_startWA/proc_spless_sbe_startWA.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* COPYRIGHT International Business Machines Corp. 2013,2014 */
/* */
/* 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 */
// -*- mode: C++; c-file-style: "linux"; -*-
// $Id: proc_spless_sbe_startWA.C,v 1.2 2013/08/14 20:44:47 jmcgill Exp $
// $Source: /afs/awd/projects/eclipz/KnowledgeBase/.cvsroot/eclipz/chips/p8/working/procedures/ipl/fapi/proc_cen_ref_clk_enable.C,v $
//------------------------------------------------------------------------------
// *|
// *! (C) Copyright International Business Machines Corp. 2013
// *! All Rights Reserved -- Property of IBM
// *! *** IBM Confidential ***
// *|
// *! TITLE : proc_spless_sbe_startWA.C
// *! DESCRIPTION : Issue workaround for CFAM Reset SBE start (FAPI)
// *!
// *! OWNER NAME : Benedikt Geukes Email: benedikt.geukes@de.ibm.com
// *! BACKUP NAME : Ralph Koester Email: rkoester@de.ibm.com
// *!
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
// Includes
//------------------------------------------------------------------------------
#include "proc_spless_sbe_startWA.H"
#include "p8_scom_addresses.H"
#include "p8_mailbox_utils.H"
//------------------------------------------------------------------------------
// Function definitions
//------------------------------------------------------------------------------
extern "C"
{
//------------------------------------------------------------------------------
// Hardware Procedure
//------------------------------------------------------------------------------
// parameters: i_target => chip target (S1/P8)
// returns: FAPI_RC_SUCCESS if operation was successful, else error
//------------------------------------------------------------------------------
fapi::ReturnCode proc_spless_sbe_startWA(const fapi::Target & i_target)
{
uint32_t rc_ecmd = 0;
fapi::ReturnCode rc;
uint32_t l_set_data;
ecmdDataBufferBase set_data(32);
uint8_t l_needSbeStartWA = 0;
do {
// ---- check if workaround is needed
rc = FAPI_ATTR_GET(ATTR_CHIP_EC_FEATURE_CFAM_RESET_SBE_START_WA,
&i_target,
l_needSbeStartWA);
if(rc)
{
FAPI_ERR("Error querying Chip EC feature: "
"ATTR_CHIP_EC_FEATURE_CFAM_RESET_SBE_START_WA");
break;
}
if(!l_needSbeStartWA)
{
//Workaround not needed -- break
break;
}
// -----------------------------------------------------------
//Need to set the I2C speed based in the mailbox reg
//Since not all 1.x part have the correctly programmed OTPROM
rc = p8_mailbox_utils_get_mbox2( i_target, l_set_data );
if (rc)
{
FAPI_ERR("ERROR: get_mbox2 = 0x%08x",
static_cast<uint32_t>(rc) );
break;
}
rc_ecmd |= set_data.setWord( 0, l_set_data );
FAPI_INF( "Write 0x%08x to mbox scratch 2",
set_data.getWord(0) );
// write it to mbox scratch2
rc = fapiPutCfamRegister( i_target,
MBOX_SCRATCH_REG1_0x00002839,
set_data );
if (rc)
{
FAPI_ERR("ERROR: write MBOX_SCRATCH_REG1_0x00002839= 0x%08x",
static_cast<uint32_t>(rc) );
break;
}
// ------------------------------------------------
// Now toggle Warmstart bit to circumvent HW254584
// write it to mbox scratch2
rc_ecmd |= set_data.setWord( 0, 0x10000000 );
rc = fapiPutCfamRegister( i_target,
CFAM_FSI_SBE_VITAL_0x0000281C,
set_data );
if (rc)
{
FAPI_ERR("ERROR: write CFAM_FSI_SBE_VITAL_0x0000281C= 0x%08x",
static_cast<uint32_t>(rc) );
break;
}
rc_ecmd |= set_data.setWord( 0, 0x90000000 );
rc = fapiPutCfamRegister( i_target,
CFAM_FSI_SBE_VITAL_0x0000281C,
set_data );
if (rc)
{
FAPI_ERR("ERROR: write CFAM_FSI_SBE_VITAL_0x0000281C= 0x%08x",
static_cast<uint32_t>(rc) );
break;
}
if(rc_ecmd)
{
FAPI_ERR( "Error (0x%08x) writing value to set_data",
rc_ecmd);
rc.setEcmdError(rc_ecmd);
break;
}
} while(0); // end do
// mark function exit
FAPI_INF("proc_spless_sbe_startWA: Exit");
return rc;
} // end FAPI procedure proc_spless_sbe_startWA
} // extern "C"
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