YAMON> erase -s
Erasing...system...
Done
YAMON> erase 0xbfd00000 0xf0000
what...
The following area will be erased:
Start address = 0x1fd00000
Size          = 0x00100000
Confirm ? (y/n) y
Erasing...Done
YAMON> 
YAMON> load /1.bin
About to load tftp://141.28.228.183/1.bin
Press Ctrl-C to break
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................................Timed out programming flash, temp = ffa4ff24, data = a07498c2
Error : Flash device failure
YAMON>