7 * Northbridge support functions for Errata and early samples
9 * @xrefitem bom "File Content Label" "Release Content"
11 * @e sub-project: (Mem/NB/DA)
12 * @e \$Revision: 56279 $ @e \$Date: 2011-07-11 13:11:28 -0600 (Mon, 11 Jul 2011) $
15 /*****************************************************************************
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42 * ***************************************************************************
51 #include "OptionMemory.h" // need def for MEM_FEAT_BLOCK_NB
57 #define FILECODE PROC_MEM_NB_DA_MNPROTODA_FILECODE
59 /* -----------------------------------------------------------------------------*/
63 * This function executes Node memory 1GB boundary alignment.
65 * @param[in,out] *NBPtr - Pointer to the MEM_NB_BLOCK
66 * @param[in,out] *NodeSysLimit - Pointer to the NodeSysLimit
71 MemPNodeMemBoundaryDA (
72 IN OUT MEM_NB_BLOCK *NBPtr,
73 IN OUT UINT32 *NodeSysLimit
76 if (NBPtr->GetBitField (NBPtr, BFDdr3Mode) == 0) {
77 // only apply to DDR2.
78 if (*NodeSysLimit > ((UINT32)1 << (30 - 16))) {
79 // if (NodeSysLimit > 1GB) then set to Node limit to 1GB boundary for each node
81 *NodeSysLimit &= 0xFFFFC000;