diff options
Diffstat (limited to 'src/usr/vpd')
| -rwxr-xr-x | src/usr/vpd/dimmPres.C | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/usr/vpd/dimmPres.C b/src/usr/vpd/dimmPres.C index cc7d19255..8c54eca75 100755 --- a/src/usr/vpd/dimmPres.C +++ b/src/usr/vpd/dimmPres.C @@ -212,7 +212,58 @@ errlHndl_t dimmPresenceDetect( DeviceFW::OperationType i_opType, { //populate serial and part number attributes SPD::setPartAndSerialNumberAttributes( i_target ); + } + + // Read ATTR_CLEAR_DIMM_SPD_ENABLE attribute + TARGETING::Target* l_sys = NULL; + TARGETING::targetService().getTopLevelTarget(l_sys); + + TARGETING::ATTR_CLEAR_DIMM_SPD_ENABLE_type l_clearSPD = + l_sys->getAttr<TARGETING::ATTR_CLEAR_DIMM_SPD_ENABLE>(); + + // If SPD clear is enabled then write 0's into magic word for + // DIMM_BAD_DQ_DATA keyword + // Note: If there's an error from performing the clearing, + // just log the error and continue. + if (l_clearSPD) + { + size_t l_size = 0; + + // Do a read to get the DIMM_BAD_DQ_DATA keyword size + err = deviceRead(i_target, NULL, l_size, + DEVICE_SPD_ADDRESS( DIMM_BAD_DQ_DATA )); + if (err) + { + TRACFCOMP(g_trac_spd, "dimmPresenceDetect - " + "Error reading DIMM_BAD_DQ_DATA keyword size"); + errlCommit( err, VPD_COMP_ID ); + } + else + { + // Clear the data + TRACFCOMP( g_trac_spd, "Clearing out BAD_DQ_DATA SPD on " + "DIMM HUID 0x%X", + TARGETING::get_huid(i_target)); + + uint8_t * l_data = static_cast<uint8_t*>(malloc( l_size )); + memset(l_data, 0, l_size); + + err = deviceWrite(i_target, l_data, l_size, + DEVICE_SPD_ADDRESS( DIMM_BAD_DQ_DATA )); + if (err) + { + TRACFCOMP( g_trac_spd, "Error trying to clear SPD on " + "DIMM HUID 0x%X", + TARGETING::get_huid(i_target)); + errlCommit( err, VPD_COMP_ID ); + } + // Free the memory + if (NULL != l_data) + { + free(l_data); + } + } } } |
