Enter u-boot on Speedport Plus

Hardware Questions and Recommendations
1

Hi guys,

So I have Sagemcom Speedport Plus which is I think based on Broadcom BCM63xx SoC and the problem is that I cant enter u-boot. Here is boot log, any idea on what I need to enter when it says nmc: waiting 5 seconds for command ?

2

Why do you think that?
SoC: Lantiq GRX389 v1.1

I think that it's waiting for something on ethernet:

sbp: check net command
nmc: waiting 5 seconds for command

Does something change when you have the network port connected while booting?

3

I confused it with Speedport Entry 2i

yep it has some relation, now the boot log is a bit different

Net: ltq-eth
sbp: check net command
nmc: waiting 5 seconds for command
Using PHY at addr 4, speed 1000, duplex 1

New boot log

4

Maybe it uses some incarnation of netconsole. You could try to connect the ethernet port directly to a PC running Wireshark, to see if it spits anything useful.