Hi.
I'm using am335x gp evm, sdk6
With default uboot environment variable, it can boot from NFS.
It's default setting for netboot is supposed to use dhcp as follows
U-Boot# pri netargs
netargs=setenv bootargs console=${console} ${optargs} root=/dev/nfs nfsroot=${serverip}:${rootpath},${nfsopts} rw ip=dhcp
And It should work with static ip. I did it successfully with freescale i.mx6 platform before.
So, I configured some u-boot environment variable as follows
set serverip 10.175.93.15 !! tftp & nfs server ip
set ipaddr 10.175.93.16 !! am335x gpevm ip
set netargs "setenv bootargs console=${console} ${optargs} root=/dev/nfs fsroot=${serverip}:${rootpath},${nfsopts} rw ip=${ipaddr}" !! dhcp --> ${ipaddr}
then, run the following commands
tftp ${loadaddr} uImage
run netargs
bootm ${loadaddr}
But kernel still try to get dynamic ip before loading nfs.
here's kernel log
[ 1.886352] mmc0: new SDHC card at address e624
[ 1.891784] mmcblk0: mmc0:e624 SD04G 3.69 GiB
[ 1.900878] mmcblk0: p1 p2
[ 3.851257] PHY: 0:00 - Link is Up - 100/Full
[ 3.870300] Sending DHCP and RARP requests .... !!! it tries to get dynamic ip. why????
[ 24.023956] DHCP/BOOTP: Reply not for us, op[2] xid[4f312349]
[ 24.030181] DHCP/BOOTP: Reply not for us, op[2] xid[4f312349]
[ 31.520294] ..
[ 60.061492] DHCP/BOOTP: Reply not for us, op[2] xid[58ed13ec]
[ 60.070129] DHCP/BOOTP: Reply not for us, op[2] xid[58ed13ec]
[ 84.040313] timed out!
[ 84.047790] IP-Config: Retrying forever (NFS root)...
[ 84.057403] net eth0: CPSW phy found : id is : 0x4dd074
[ 84.070068] PHY 0:01 not found
[ 86.051269] PHY: 0:00 - Link is Up - 100/Full
[ 86.070343] Sending DHCP and RARP requests ., OK !!! After several trials, it manages to get dynamic ip
[ 86.110778] IP-Config: Got DHCP answer from 0.0.0.0, my address is 10.175.91.142
[ 86.121185] IP-Config: Complete:
[ 86.124572] device=eth0, addr=10.175.91.142, mask=255.255.255.0, gw=10.175.91.254, !!! and load nfs with that dynamic ip
[ 86.132751] host=10.175.91.142, domain=LGE.NET, nis-domain=(none),
[ 86.139648] bootserver=0.0.0.0, rootserver=10.175.93.15, rootpath=
[ 86.245056] VFS: Mounted root (nfs filesystem) on device 0:14.
[ 86.251678] Freeing init memory: 236K
What's the problem?
How can I make netboot to work with static ip?
I did it successfully on other CPU board with the same u-boot environment variables.
