AHB status register
CONFIG_AHBSTAT_ENABLE
  Say Y here to enable the AHB status register (AHBSTAT IP).
  The register will latch the AHB address and master index when
  an error response is returned by any AHB slave.

SDRAM separate address buses
CONFIG_AHBSTAT_NFTSLV
  The AHB status register can also latch the AHB address on an external
  input. Select here how many of such inputs are required.

