Add SPD DDIMM DDR4 module except for PMIC fields

Change-Id: If5bb07a8f6655da1b941f89ef15ff247ce442a74
Original-Change-Id: Ib5268d2bc425733d30fbca98eaeb8d4a62a918a2
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/69838
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Dev-Ready: STEPHEN GLANCY <sglancy@us.ibm.com>
Reviewed-by: Louis Stermole <stermole@us.ibm.com>
Reviewed-by: ANDRE A. MARIN <aamarin@us.ibm.com>
Tested-by: HWSV CI <hwsv-ci+hostboot@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>

src/import/generic/memory/lib/utils/mss_field.H

@@ -179,6 +179,9 @@ inline fapi2::ReturnCode get_field(const fapi2::Target<T>& i_target,
                                    const FFDC i_ffdc_codes,
                                    OT& o_value)
 {
+    // Initializes the output value to 0, that way, we won't have any stale data in o_value
+    o_value = 0;
+
     const size_t BYTE = F.get_byte(i_data);
 
     FAPI_ASSERT( BYTE < i_data.size(),

src/import/generic/memory/lib/utils/shared/mss_generic_consts.H

@@ -136,6 +136,9 @@ enum generic_ffdc_codes
     SET_HYBRID_MEDIA = 0x1028,
     SET_MRANKS = 0x1029,
     SET_DIMM_RANKS_CNFG = 0x1039,
+
+    // SPD fields function codes
+    DDIMM_RAWCARD_DECODE = 0x103a,
 };
 
 ///
@@ -193,6 +196,7 @@ namespace spd
 ///
 enum rev : uint8_t
 {
+    V0_0 = 0x00, ///< represents Rev 0.0
     V1_0 = 0x10, ///< represents Rev 1.0
     V1_1 = 0x11, ///< represents Rev 1.1
     V1_2 = 0x12, ///< represents Rev 1.2
@@ -202,6 +206,7 @@ enum rev : uint8_t
     GEN_SEC_MAX = V1_1,
     RDIMM_MAX = V1_1,
     LRDIMM_MAX = V1_2,
+    DDIMM_MAX = V1_0,
 };
 
 ///
@@ -215,6 +220,7 @@ enum parameters
     RDIMM_MODULE,
     LRDIMM_MODULE,
     NVDIMM_MODULE,
+    DDIMM_MODULE,
 };
 
 ///
@@ -234,6 +240,7 @@ enum dimm_type
 {
     RDIMM = 0b0001,
     LRDIMM = 0b0100,
+    DDIMM = 0b1010,
 };
 
 enum guard_band : uint16_t