Hi, I failed to setup RMII ethernet interface of the UBoot on my custom board -- PPC440GP, It always tell me "time out", and the wrong ethernet speed, why? I defined the MII and RMII macro in my config header, and still does not work. (Anyway, I success to setup a MII ethernet interface on the PPC405GP,should I change the RMII interface to MII on the hardware level?) logs: u-boot => tftp 0x100000 tmp.img miiphy_register: non unique device name 'ppc_4xx_eth0' Waiting for PHY auto negotiation to complete..... TIMEOUT ! done ENET Speed is 10 Mbps - HALF duplex connection TFTP from server 192.168.65.235; our IP address is 192.168.65.239 Filename 'tmp.img'. Load address: 0x100000 Loading: T T Thanks & Regards! - Denny 想 要 体 验 一 下 超 大 超 快 的 免 费 邮 箱 吗 ? 网 易 3G 免 费 邮 ,抢 注 再 得 280 兆 大 容 量 网 盘 ,快 来 体 验 邮 箱 极 速 之 旅