IO, FBC updates to enable ABUS for Fleetwood

Attributes:
-------------------------------------------------------------------------------

nest_attributes.xml
  add ATTR_LINK_TRAIN, written by platform on X, O endpoints to specify
    whether half or full link should be trained
  add ATTR_PROC_FABRIC_LINK_ACTIVE, written by p9_fbc_eff_config_links
  adjust enums for ATTR_PROC_FABRIC_[XA]_ATTACHED_CHIP_CNFG, written
    by p9_fbc_eff_config_links
  add ATTR_PROC_FABRIC_[XA]_LINKS_CNFG, written by p9_fbc_eff_config_links

pervasive_attributes.xml
  create ATTR_PROC_NPU_REGION_ENABLED to encapsulate accessibility of
    NPU logic domain, written by p9_chiplet_scominit

chip_ec_attributes.xml
  add EC feature attribute controlling DL training workaround

Initfiles:
-------------------------------------------------------------------------------

p9.fbc.ab_hp.scom.initfile
  add logic to permit reset of chg_rate master dials in second phase SMP build
  adjust link enable expressions to reflect new ATTACHED_CHIP_CNFG enums

p9.fbc.cd_hp.scom.initfile
p9.fbc.no_hp.scom.initfile
  consume number of configured X/A links from new attribute, simple addition
    won't work any longer given new ATTACHED_CHIP_CNFG enums

p9.fbc.ioe_dl.scom.initfile
  support half-link operation, based on ATTR_LINK_TRAIN on X endpoint target

p9.fbc.ioe_tl.scom.initifle
  adjust link enable expressions to reflect new ATTACHED_CHIP_CNFG enums

p9.fbc.ioo_dl.scom.initfile
  support half-link operation, based on ATTR_LINK_TRAIN on O endpoint target
  qualify OLL enablement based on use as active fabric link
  adjust PHY training parameters based on current lab learning

p9.fbc.ioo_tl.scom.initfile
  adjust link enable expressions to reflect new ATTACHED_CHIP_CNFG enums
  support half-link operation, based on ATTACHED_CHIP_CNFG
  qualify TOD_ENABLE to apply only to O links carrying X traffic

p9.npu.scom.initfile
  clear OPTICAL_IO_CONFIG when not actively using NVLINK, finer-grained
    updates needed to support mix of O SMP and NVLINK usage

HWPs:
-------------------------------------------------------------------------------

p9_io_obus_dccal
  execute only on links actively carrying fabric protocol

p9_io_obus_linktrain
p9_io_regs
  encapsulate PHY FIFO reset sequence needed prior to FBC DL training execution

p9_chiplet_scominit
p9_npu_scominit
  partial good updates for NPU region

p9_fab_iovalid
  adjust iovalid manipulation/checking, as well as link delay reporting, to
    support half-link configuration

p9_smp_link_layer
  support half-link configuration via ATTR_PROC_FABRIC_[XA]_ATTACHED_CHIP_CNFG
  implement OBUS PHY specific workarounds

p9_eff_config_links
  update ATTR_PROC_FABRIC_[XA]_ATTACHED_CHIP_CNFG to support half-link
    configuration
  write ATTR_PROC_FABRIC_LINK_ACTIVE on X/O endpoint targets
  write ATTR_PROC_FABRIC_[XA]_LINKS_CNFG to reflect total number of logically
    configured links, for initfile consumption

Istep wrappers:
-------------------------------------------------------------------------------

p9_build_smp_wrap
  correctly loop over all system targets for second phase SMP build

p9_sys_chiplet_scominit_wrap
  initial release

Change-Id: I6254051becffe41322f07039cde99bff3eb8f950
Original-Change-Id: Ic1d87df4d3ff0feca7ac2437fa61b6d2fc4a2d68
CQ: HW419022
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/43905
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: HWSV CI <hwsv-ci+hostboot@us.ibm.com>
Tested-by: PPE CI <ppe-ci+hostboot@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: DANIEL C. HOWE <dchowe@us.ibm.com>
Reviewed-by: Matt K. Light <mklight@us.ibm.com>
Reviewed-by: Jenny Huynh <jhuynh@us.ibm.com>
Reviewed-by: Joseph J. McGill <jmcgill@us.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/55588
CI-Ready: Daniel M. Crowell <dcrowell@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Tested-by: Daniel M. Crowell <dcrowell@us.ibm.com>

src/import/chips/p9/procedures/xml/attribute_info/chip_ec_attributes.xml

@@ -1869,6 +1869,24 @@
     </chipEcFeature>
   </attribute>
   <!-- ******************************************************************** -->
+  <attribute>
+    <id>ATTR_CHIP_EC_FEATURE_HW424691</id>
+    <targetType>TARGET_TYPE_PROC_CHIP</targetType>
+    <description>
+      Cumulus DD1.0: enable workarounds for HW424691 in FBC initfile
+      Set alink token inits via scan for dd1.0 to avoid serial scom conflict
+    </description>
+    <chipEcFeature>
+      <chip>
+        <name>ENUM_ATTR_NAME_CUMULUS</name>
+        <ec>
+          <value>0x10</value>
+          <test>LESS_THAN_OR_EQUAL</test>
+        </ec>
+      </chip>
+    </chipEcFeature>
+  </attribute>
+  <!-- ******************************************************************** -->
   <attribute>
     <id>ATTR_CHIP_EC_FEATURE_HW409019</id>
     <targetType>TARGET_TYPE_PROC_CHIP</targetType>
@@ -5556,4 +5574,22 @@
     </chipEcFeature>
   </attribute>
   <!-- ******************************************************************** -->
+  <attribute>
+    <id>ATTR_CHIP_EC_FEATURE_HW419022</id>>
+    <targetType>TARGET_TYPE_PROC_CHIP</targetType>
+    <description>
+      Cumulus DD1: Use alternate training sequence to establish
+      OBUS fabric DL layer to avoid HW419022
+    </description>
+    <chipEcFeature>
+      <chip>
+        <name>ENUM_ATTR_NAME_CUMULUS</name>
+        <ec>
+          <value>0x10</value>
+          <test>EQUAL</test>
+        </ec>
+      </chip>
+    </chipEcFeature>
+  </attribute>
+  <!-- ******************************************************************** -->
 </attributes>