1CONFIG_M68K=y 2CONFIG_TARGET_M5485EVB=y 3CONFIG_SYS_EXTRA_OPTIONS="SYS_BUSCLK=100000000,SYS_BOOTSZ=2,SYS_DRAMSZ=64,SYS_USBCTRL" 4CONFIG_SYS_PROMPT="-> " 5# CONFIG_CMD_SETEXPR is not set 6