U-Boot have a password
U-Boot 2012.07 [Standard IPQ806X.LN,local] (Mar 26 2015 - 13:53:09)
smem ram ptable found: ver: 0 len: 5
DRAM: 491 MiB
NAND: ipq_nand: unknown NAND device manufacturer: 0 device: 0
ipq_nand: failed to identify device
SF: Detected S25FL256S with page size 64 KiB, total 32 MiB
ipq_spi: page_size: 0x100, sector_size: 0x10000, size: 0x2000000
32 MiB
MMC:
PCI0 Link Intialized
PCI1 Link Intialized
In: serial
Out: serial
Err: serial
PRODUCTDATA CRC Verify OK.
Net: MAC1 addr:
athrs17_reg_init: complete
athrs17_vlan_config ...done
S17c init done
MAC2 addr:
eth0, eth1
welcome to boot console
Password: