setenv gatewayip 192.168.1.1;

setenv serverip 192.168.1.7;

setenv ipaddr 192.168.1.156 ;

mw.b 0x82000000 0xff 0x1000000

sf probe

sf read 0x82000000  0x1000000

tftp 0x82000000 test.bin 0x1000000

mw.b  ff

tftp  test.bin

sf probe

sf erase

sf write   

setenv serverip 192.168.1.14;mw.b  ff ;tftp  /home/swann/tftp_hi/firmware_3518_0130_v1..bin;sf probe ;sf erase  ;sf write