-- SPI controller
  constant CFG_SPICTRL_ENABLE  : integer := CONFIG_SPICTRL_ENABLE;
  constant CFG_SPICTRL_NUM     : integer := CONFIG_SPICTRL_NUM;
  constant CFG_SPICTRL_SLVS    : integer := CONFIG_SPICTRL_SLVS;
  constant CFG_SPICTRL_FIFO    : integer := CONFIG_SPICTRL_FIFO;
  constant CFG_SPICTRL_SLVREG  : integer := CONFIG_SPICTRL_SLVREG;
  constant CFG_SPICTRL_ODMODE  : integer := CONFIG_SPICTRL_ODMODE;
  constant CFG_SPICTRL_AM      : integer := CONFIG_SPICTRL_AM;
  constant CFG_SPICTRL_ASEL    : integer := CONFIG_SPICTRL_ASEL;
  constant CFG_SPICTRL_TWEN    : integer := CONFIG_SPICTRL_TWEN;
  constant CFG_SPICTRL_MAXWLEN : integer := CONFIG_SPICTRL_MAXWLEN;
  constant CFG_SPICTRL_SYNCRAM : integer := CONFIG_SPICTRL_SYNCRAM;
  constant CFG_SPICTRL_FT      : integer := CONFIG_SPICTRL_FT;
  constant CFG_SPICTRL_PROT    : integer := CONFIG_SPICTRL_PROT;