174                             SMG digital gateway 
6  APPENDIX B. ALTERNATIVE METHOD OF DEVICE FIRMWARE UPDATE  
In  case  firmware  update  via  web  interface  or  console  (Тelnet,  RS-232)  is  not  possible,  an  alternative 
firmware update method via RS-232 can be used. 
To update the device firmware, the following programs are required: 
  Terminal program (for example, TERATERM); 
  TFTP server program. 
Firmware update procedure: 
1.  Connect to the Ethernet port of the device. 
2.  Connect the PC COM port to the device console port using a crossed cable. 
3.  Run the terminal program. 
4.  Configure  data  transmission  rate:  115200,  data  format:  8 bit  w/o  parity,  1 stop  bit,  w/o  flow 
control. 
5.  Run the tftp server program on the PC and specify the path to the smg_files folder. Create the 
smg4 subfolder in the folder and place there the  smg4_kernel, smg4_initrd files (the computer that runs 
the TFTP server and the device should be located in the same network). 
6.  Turn the device on and stop the startup sequence by entering the stop command in the terminal 
program window: 
BootROM 1.08 
Booting from SPI flash 
General initialization – Version: 1.0.0 
 
High speed PHY – Version: 2.1.4 (COM-PHY-V20)  
Update PEX Device ID 0x67100 
High speed PHY – Ended Successfully 
DDR3 Training Sequence – Ver 5.5.0 
DDR3 Training Sequence – Run without PBS. 
DDR3 Training Sequence – Ended Successfully  
BootROM: Image checksum verification PASSED 
 
__   __                      _ _ 
|  \/  | __ _ _ ____   _____| | | 
| |\/| |/ _` | '__\ \ / / _ \ | | 
| |  | | (_| | |   \ V /  __/ | | 
|_|  |_|\__,_|_|    \_/ \___|_|_| 
         _   _     ____              _ 
        | | | |   | __ )  ___   ___ | |_  
        | | | |___|  _ \ / _ \ / _ \| __|  
        | |_| |___| |_) | (_) | (_) | |_  
 \___/    |____/ \___/ \___/ \__|  
 ** LOADER ** 
 
 
U-Boot 2011.12 (Jul 22 2014 – 16:26:55) Marvell version: v2011.12 2013_Q3.1 
 
Board: RD-88F6W11 
SoC:   MV6710 A1 
CPU:   Marvell PJ4B v7 UP (Rev 1) LE