some useful commands for miZy

• loadtime - display info about source and boot time

BOOT_INFO: bootfrom=sd loadfrom=MMC0 loadseq=>MMC0
LOAD_TIME: uboot 2.438 + system 4.82 ( kernel 1.55 )
KERNEL: Linux s1-hyphop.oil1-1.2 3.4.113+ #36 SMP PREEMPT Tue Aug 28 11:47:05 MSK 2018 armv7l GNU/Linux

• eth.on - enable ethernet (hardware level)
• eth.off - disable ethernet (hardware level)
• eth.status - check ethernet status

... TO BE CONTINUE ...