hi all,
My board is Ordb2a-ep4ce22,bootloader is orpmon,when i use tboot ,it works well sometimes and i am sure my tftpserver works well. But in most cases,it stop at:
NetTxPacket begin setup
eth_init: monitor disabled at startup
ARP broadcast 1

My steps:
eth_conf 192.168.3.222 255.255.255.0 192.168.3.1
tftp_conf vmlinux.bin 192.168.3.188
tboot

Thanks for helping

Who can explain this:(in function eth_send() /orpmon/drivers/eth.c)

BUG with current implementation - constantly getting carrier sense
lost, and deferred indication, so ignore it for now.
if ( bd[tx_last].len_status & 0xf)
{
printf("eth_send: carrier sense lost (txbd: 0x%x), deferred, retrying\n",
bd[tx_last].len_status);
sleep(1);
goto retry_eth_send;
}
Thanks for helping

I have found an issue in the ORDB2A board where the Ethernet Phy (KSZ8021RNL) does not always reset in the autonegotiation / 100Mbps mode. Luckily this only affects the default values of some phy registers and the registers can be reconfigured from orpmon.

These commands should reenable autonegotiation of 100Mbps mode:
set_phy_reg 4 0x1e1
set_phy_reg 0 0x3300
Register 4 enables the 100Mbps modes in autonegotiation, while register 0 enables negotiation itself.

After running those two commands, eth_conf, tftp_conf and tboot should work normally. Sorry for the trouble.

At least on my boards the above commands are invalid.

set_phy_reg 0x4 481
set_phy_reg 0x0 13056

...make tftp function! :-)

Thanks,
//richard