qemu-system-m68k -machine mcf5208evb -boot d -nographic -serial mon:stdio -net user,tftp=${UBOOT_TRAVIS_BUILD_DIR} -net nic,model=mcf-fec -bios u-boot.bin
qemu: fatal: Unimplemented control register write 0xc05 = 0x80000221

D0 = 80000221   A0 = 00000000   F0 = 7fff ffffffffffffffff  (         nan)
D1 = 00000000   A1 = 00000000   F1 = 7fff ffffffffffffffff  (         nan)
D2 = 00000000   A2 = 00000000   F2 = 7fff ffffffffffffffff  (         nan)
D3 = 00000000   A3 = 00000000   F3 = 7fff ffffffffffffffff  (         nan)
D4 = 00000000   A4 = 00000000   F4 = 7fff ffffffffffffffff  (         nan)
D5 = 00000000   A5 = 00000000   F5 = 7fff ffffffffffffffff  (         nan)
D6 = 00000000   A6 = 00000000   F6 = 7fff ffffffffffffffff  (         nan)
D7 = 00000000   A7 = 00000000   F7 = 7fff ffffffffffffffff  (         nan)
PC = 00000408   SR = 2708 T:0 I:7 SI -N---
FPSR = 00000000 ----
                                FPCR =     0000 X RN
  A7(MSP) = 00000000 ->A7(USP) = 00000000   A7(ISP) = 00000000
VBR = 0x00000000
SFC = 0 DFC 0
SSW 00000000 TCR 00000000 URP 00000000 SRP 00000000
DTTR0/1: 00000000/00000000 ITTR0/1: 00000000/00000000
MMUSR 00000000, fault at 00000000
[1]    2670135 IOT instruction (core dumped)  qemu-system-m68k -machine mcf5208evb -boot d -nographic -serial mon:stdio -ne