MEM_RDDR2
pvt->dram_type = (pvt->dclr0 & BIT(16)) ? MEM_DDR2 : MEM_RDDR2;
[MEM_RDDR2] = "Registered-DDR2",
mtype = MEM_RDDR2;
dimm->mtype = MEM_RDDR2;
dimm->mtype = MEM_RDDR2;
mt = MEM_RDDR2;
#define MEM_FLAG_RDDR2 BIT(MEM_RDDR2)