[U-Boot-Users] [Fwd: [PPCBoot-users] DHCP updating environment???]

[Steven Scholz]

Wolfgang Denk wrote:
> 
> In message <3DC7C8C5.6983A78 at imc-berlin.de> you wrote:
> >
> > > Seems you think right. Ummmm... why are you asking? Any problems with
> > > it?
> > Well, I am a bit anoyed because everytime I do a dhcp to get the settings for a
> > tftp I have to wait until pImage gets loaded...
> >
> > (Well not realy anoyed! Just curious why it is the way it is.)
> >
> > I want to do something like "dhcp; tftp 100000 fpga.rbf".
> 
> I don't get you. Do you mean that setting "autoload" to "no" does NOT
> work with DHCP? From the code I think it should work.

Ok. Example (from real life):

After power on I have

loadaddr=0x100000
serial#=69383
ethaddr=00:A0:33:01:07:0F

A bootp results in:
=> bootp
FEC ETHERNET configured
BOOTP broadcast 1
DHCP client bound to address 10.0.9.161
ARP broadcast 1
TFTP from server 10.0.2.9; our IP address is 10.0.9.161
Filename 'pImage.DAB4K2'.
Load address: 0x100000
Loading: #################################################################
         #################################################################
         ########
done
Bytes transferred = 702439 (ab7e7 hex)
=> printenv
loadaddr=0x100000
serial#=69383
ethaddr=00:A0:33:01:07:0F
bootfile=pImage.DAB4K2
filesize=ab7e7
netmask=255.255.0.0
hostname=dab4k2_69383
rootpath=/opt/ELDK/ppc_8xx
ipaddr=10.0.9.161
serverip=10.0.2.9

Fair enough! But let's do it again...

=> setenv autoload n
=> bootp
FEC ETHERNET configured
BOOTP broadcast 1
DHCP client bound to address 10.0.9.161
=> printenv
loadaddr=0x100000
serial#=69383
ethaddr=00:A0:33:01:07:0F
autoload=n
bootfile=pImage.DAB4K2

You see!?

Only "bootfile" gets set. So a following tftp brings

=> tftp 100000 pImage.DAB4K2
FEC ETHERNET configured
*** ERROR: `serverip' not set

So I think BootpCopyNetParams() should get called regardless of autoload!

Steven