报错背景
原本配置好的uboot，具体启动开发板突然报错超时
开发板启动时报错
Hit any key to stop autoboot: 0 FEC1 Waiting for PHY auto negotiation to complete......... TIMEOUT ！ Using FEC1 device TFTP from server 192.168.19.100; our IP address is 192.168.19.101 Filename 'zImage'. Load address: 0x80800000 Loading: * ARP Retry count exceeded; starting again FEC1 Waiting for PHY auto negotiation to complete......... TIMEOUT ！
原因分析：
网线松动了
解决办法
接好网线，重新启动即可。
