[U-Boot] Ping is not working with uboot 1.3.4 on at91sam9263 custom board

Hi i have been using custom board with at91sam9263 and U boot 1.3.4, It showing that link is up and down whenever i pluging and plugout the Ethernet cable. But when I try to ping, it showing : host device not active. Whether its a problem with Uboot or something with board?? Your suggestions

[U-Boot] cp.b command not working for copy to flash

I am trying cp.b 2200 1010 18 (i.e. copy from RAM to FLASH) Its showing me message flash can't Erase. But when i tried cp.b 1010 2200 18 its working. (i.e. copy from FLASH to RAM) Can please anybody tell me what's going wrong?? -- View this message in context: