SPDMEM_FBDIMM_ADDR
cols = (s->sm_data[SPDMEM_FBDIMM_ADDR] & SPDMEM_FBDIMM_ADDR_COL) >>
rows = (s->sm_data[SPDMEM_FBDIMM_ADDR] & SPDMEM_FBDIMM_ADDR_ROW) >>