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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/hwpf/hwp/dram_initialization/host_mpipl_service/proc_mpipl_chip_cleanup.C $ */
/* */
/* IBM CONFIDENTIAL */
/* */
/* COPYRIGHT International Business Machines Corp. 2012 */
/* */
/* p1 */
/* */
/* Object Code Only (OCO) source materials */
/* Licensed Internal Code Source Materials */
/* IBM HostBoot Licensed Internal Code */
/* */
/* The source code for this program is not published or otherwise */
/* divested of its trade secrets, irrespective of what has been */
/* deposited with the U.S. Copyright Office. */
/* */
/* Origin: 30 */
/* */
/* IBM_PROLOG_END_TAG */
// $Id: proc_mpipl_chip_cleanup.C,v 1.3 2012/11/27 21:43:30 belldi Exp $
// $Source: /afs/awd/projects/eclipz/KnowledgeBase/.cvsroot/eclipz/chips/p8/working/procedures/ipl/fapi/proc_mpipl_chip_cleanup.C,v $
//------------------------------------------------------------------------------
// *|
// *! (C) Copyright International Business Machines Corp. 2012
// *! All Rights Reserved -- Property of IBM
// *! *** IBM Confidential ***
// *|
// *! TITLE : proc_mpipl_chip_cleanup.C
// *! DESCRIPTION : To enable MCD recovery
// *!
// *! OWNER NAME : Dion Bell Email: belldi@us.ibm.com
// *! BACKUP NAME : Dion Bell Email: belldi@us.ibm.com
// *!
// *!
// *!
// *!
// *!
// *! Additional Note(s):
// *!
// *!
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
// Includes
//------------------------------------------------------------------------------
#include "proc_mpipl_chip_cleanup.H"
//------------------------------------------------------------------------------
// eCMD Includes
//------------------------------------------------------------------------------
extern "C"
{
//------------------------------------------------------------------------------
// Function definitions
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
// name: proc_mpipl_chip_cleanup
//------------------------------------------------------------------------------
// purpose:
// To enable MCD recovery
//
// Note: PHBs are left in ETU reset state after executing proc_mpipl_nest_cleanup, which runs before this procedure. PHYP releases PHBs from ETU reset post HostBoot IPL.
//
// SCOM regs
//
// 1) MCD even recovery control register
// 0000000002013410 (SCOM)
// bit 0 (MCD_REC_EVEN_ENABLE): 0 to 1 transition needed to start, reset to 0 at end of request.
// bit 5 (MCD_REC_EVEN_REQ_PEND)
//
//
// 2) MCD odd recovery control register
// 0000000002013411 (SCOM)
// bit 0 (MCD_REC_ODD_ENABLE): 0 to 1 transition needed to start, reset to 0 at end of request.
// bit 5 (MCD_REC_ODD_REQ_PEND)
//
// parameters:
// 'i_target' is reference to chip target
//
// returns:
// FAPI_RC_SUCCESS (success, MCD recovery enabled for odd and even slices)
//
// RC_MCD_RECOVERY_NOT_DISABLED_RC (MCD recovery for even or odd slice is not disabled; therefore can't re-enable MCD recovery)
// (Note: refer to file eclipz/chips/p8/working/procedures/xml/error_info/proc_mpipl_chip_cleanup_errors.xml)
//
// getscom/putscom fapi errors
// fapi error assigned from eCMD function failure
//
//------------------------------------------------------------------------------
fapi::ReturnCode proc_mpipl_chip_cleanup(const fapi::Target &i_target){
const char *procedureName = "proc_mpipl_chip_cleanup"; //Name of this procedure
fapi::ReturnCode rc; //fapi return code value
uint32_t rc_ecmd = 0; //ecmd return code value
const uint32_t data_size = 64; //Size of data buffer
ecmdDataBufferBase fsi_data(data_size);
const int MAX_MCD_DIRS = 2; //Max of 2 MCD Directories (even and odd)
const uint64_t ARY_MCD_RECOVERY_CTRL_REGS_ADDRS[MAX_MCD_DIRS] = {
0x0000000002013410, //MCD even recovery control register address
0x0000000002013411 //MCD odd recovery control register address
};
const uint32_t MCD_RECOVERY_CTRL_REG_BIT_POS0 = 0; //Bit 0 of MCD even and odd recovery control regs
const char *ARY_MCD_DIR_STRS[MAX_MCD_DIRS] = {
"Even", //Ptr to char string "Even" for even MCD
"Odd" //Ptr to char string "Odd" for odd MCD
};
//Verify MCD recovery was previously disabled for even and odd slices
//If not, this is an error condition
for (int counter = 0; counter < MAX_MCD_DIRS; counter++) {
FAPI_DBG("Verifying MCD %s Recovery is disabled\n", ARY_MCD_DIR_STRS[counter]);
//Get data from MCD Even or Odd Recovery Ctrl reg
rc = fapiGetScom(i_target, ARY_MCD_RECOVERY_CTRL_REGS_ADDRS[counter], fsi_data);
if (rc) {
FAPI_ERR("%s: fapiGetScom error (addr: 0x%08llX)\n", procedureName, ARY_MCD_RECOVERY_CTRL_REGS_ADDRS[counter]);
return rc;
}
//Check whether bit 0 is 0, meaning MCD recovery is disabled as expected
if( fsi_data.getBit(MCD_RECOVERY_CTRL_REG_BIT_POS0) ) {
FAPI_ERR("%s: MCD %s Recovery not disabled as expected\n", procedureName, ARY_MCD_DIR_STRS[counter]);
FAPI_SET_HWP_ERROR(rc, RC_MCD_RECOVERY_NOT_DISABLED_RC);
return rc;
}
}
//Assert bit 0 of MCD Recovery Ctrl regs to enable MCD recovery
for (int counter = 0; counter < MAX_MCD_DIRS; counter++) {
FAPI_DBG("Enabling MCD %s Recovery\n", ARY_MCD_DIR_STRS[counter]);
//Get data from MCD Even or Odd Recovery Control reg
rc = fapiGetScom(i_target, ARY_MCD_RECOVERY_CTRL_REGS_ADDRS[counter], fsi_data);
if (rc) {
FAPI_ERR("%s: fapiGetScom error (addr: 0x%08llX)\n", procedureName, ARY_MCD_RECOVERY_CTRL_REGS_ADDRS[counter]);
return rc;
}
//Assert bit 0 of MCD Even or Odd Recovery Control reg to enable recovery
rc_ecmd = fsi_data.setBit(MCD_RECOVERY_CTRL_REG_BIT_POS0 );
if(rc_ecmd) {
FAPI_ERR("%s: Error (%u) asserting bit pos %u in ecmdDataBufferBase that stores value of MCD %s Recovery Control reg (addr: 0x%08llX)\n", procedureName, rc_ecmd, MCD_RECOVERY_CTRL_REG_BIT_POS0, ARY_MCD_DIR_STRS[counter], ARY_MCD_RECOVERY_CTRL_REGS_ADDRS[counter]);
rc.setEcmdError(rc_ecmd);
return rc;
}
//Write data to MCD Even or Odd Recovery Control reg
rc = fapiPutScom(i_target, ARY_MCD_RECOVERY_CTRL_REGS_ADDRS[counter], fsi_data);
if (rc) {
FAPI_ERR("%s: fapiPutScom error (addr: 0x%08llX)\n", procedureName, ARY_MCD_RECOVERY_CTRL_REGS_ADDRS[counter]);
return rc;
}
}
return rc;
}
} // extern "C"
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