uboot 带 dm9000网络功能 支持 tftp下载的

uboot 带 dm9000网络功能 支持 tftp下载的 -dm9000 network function with uboot support tftp download

arm裸板驱动开发dm9000操作的相关代码，由clock.c gpio.c lcd.c mmu.c icmp.c ip.c等组成-dm9000 arm bare board-driven development operations related to the code, by the clock.c gpio.c lcd.c mmu.c icmp.c ip.c etc.

tiny6410 裸机DM9000网卡驱动，并且移植号了tftp客户端和arp协议，可以通过tftp下载linux内核，并通过bootm命令启动内核。-Tiny6410 bare metal DM9000 network card driver, and transplantation of the tftp client and arp protocol, you can download linux kernel through t