Add EEPROM caching device op

This commit introduces a new EEPROM_CACHE deviceOp and registers
the OCMB_CHIP, PROC, and DIMM targets to it. This is part of the
larger effort to transition for a "VPD" cache to an "EEPROM" cache
in pnor. The deviceOp is currently called in hwasPlat's
platPresenceDetect if the target in question has a
ATTR_EEPROM_VPD_PRIMARY_INFO associated with it. The layout for the
new EECACHE section in pnor is defined in eepromCache_const.H.
Essentially it is a header that contains an array of record headers
that tell where in the EECACHE pnor section a given cached EEPROM
can be found. All EEPROM targets will be allocated space in the
EECACHE section but only present targets will have their cache
filled in.

RTC: 196805
Change-Id: I49c341c9784be04ddf0259bd444f06c9baf8c6f1
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/70520
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Reviewed-by: Matt Derksen <mderkse1@us.ibm.com>
Reviewed-by: Roland Veloz <rveloz@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

1 files changed, 16 insertions, 1 deletions

diff --git a/src/usr/hwas/hwasPlat.C b/src/usr/hwas/hwasPlat.C
index 35e9588e0..e72d5109e 100644
--- a/src/usr/hwas/hwasPlat.C
+++ b/src/usr/hwas/hwasPlat.C
@@ -48,9 +48,12 @@
 #include <fsi/fsiif.H>
 #include <config.h>
 #include <targeting/common/targetservice.H>
-
 #include <chipids.H>
 
+#ifdef CONFIG_SUPPORT_EEPROM_CACHING
+#include <i2c/eepromif.H>
+#endif
+
 namespace HWAS
 {
 
@@ -615,6 +618,18 @@ errlHndl_t platPresenceDetect(TargetHandleList &io_targets)
             // erase this target, and 'increment' to next
             pTarget_it = io_targets.erase(pTarget_it);
         }
+#ifdef CONFIG_SUPPORT_EEPROM_CACHING
+        TARGETING::EepromVpdPrimaryInfo eepromData;
+        if (pTarget->tryGetAttr<ATTR_EEPROM_VPD_PRIMARY_INFO>(eepromData))
+        {
+            HWAS_INF( "Reading EEPROMs for target, eeprom type = %d , target present = %d , eeprom type = %d",
+                      DEVICE_CACHE_EEPROM_ADDRESS(present, EEPROM::VPD_PRIMARY));
+            errl = deviceRead(pTarget, &present, presentSize,
+                            DEVICE_CACHE_EEPROM_ADDRESS(present, EEPROM::VPD_PRIMARY));
+            errlCommit(errl, HWAS_COMP_ID);
+            // errl is now null, move on to next target
+        }
+#endif
     } // for pTarget_it
 
     return errl;