config SUN4M
    bool
    imply TCX
    imply CG3
    select CS4231
    select ECCMEMCTL
    select EMPTY_SLOT
    select ESCC
    select ESP
    select FDC
    select SLAVIO
    select LANCE
    select M48T59
    select STP2000

config LEON3
    bool
    select GRLIB

config GRLIB
    bool
    select PTIMER

config SLAVIO
    bool
    select PTIMER