[U-Boot] Ethernet doesn't work on Colibri PXA320

Hello

I have despaired already. U-boot network subsystem in any way doesn't want to work on my board. :( I've found a place where it hang.

When I run any network command (ping, tftpboot, etc...) CPU sends EECS signal (EEPROM Chip Select) to AX88796 ethernet controller, to its MEMR - MII/EEPROM Management Register (address is 0x10001428) and then system is halted. And nothing is happen. This is it... Should I think that it is hardware issue?

Thansk Best regards Dennis Semakin