Hi all,
Our environment is such that the TFTP server is a different machine to the DHCP server. So when I use the bootp command, serverip is set to the ip address of the DHCP server. This will not as it will attempt to transfer the file from the DHCP server instead of the TFTP server.
To overcome this issue, I have modify the BootpCopyNetParams() to check if serverip is empty before copying. The patch is below and attached.
--- old_u-boot/net/bootp.c 2005-11-23 15:40:52.000000000 +1100 +++ u-boot/net/bootp.c 2005-11-23 15:26:52.000000000 +1100 @@ -121,8 +121,15 @@
NetCopyIP(&NetOurIP, &bp->bp_yiaddr); NetCopyIP(&tmp_ip, &bp->bp_siaddr); - if (tmp_ip != 0) - NetCopyIP(&NetServerIP, &bp->bp_siaddr); + if (tmp_ip != 0) { + + /* check that serverip is empty before setting the value as + ** the DHCP server could be a different machine. + */ + if (getenv("serverip") == NULL) { + NetCopyIP(&NetServerIP, &bp->bp_siaddr); + } + } memcpy (NetServerEther, ((Ethernet_t *)NetRxPkt)->et_src, 6); if (strlen(bp->bp_file) > 0) copy_filename (BootFile, bp->bp_file, sizeof(BootFile));
So if serverip is not empty, u-boot will assume that you know the ip address of the server, and have set it explicitly.
Happy for rocks to be thrown if a different solution exits.
cheers,