FAILED: Bay Trail

Dear Sir,
I got a problem. A failure occured while freshing the bios. Here is the log:

(1) # ./flashrom -w ok.bin -p internal
flashrom v0.9.9-r1955 on Linux 3.14.42 (i686)
flashrom is free software, get the source code at https://flashrom.org

Calibrating delay loop... OK.
Found chipset "Intel Bay Trail".
Enabling flash write... Warning: BIOS region SMM protection is enabled!
Warning: Setting Bios Control at 0x0 from 0x22 to 0x01 failed.
New value is 0x22.
OK.
Found Winbond flash chip "W25Q64.W" (8192 kB, SPI) mapped at physical address 0xff800000.
Reading old flash chip contents... done.
Erasing and writing flash chip... Transaction error!
spi_block_erase_20 failed during command execution at address 0x320000
Reading current flash chip contents... done. Looking for another erase function.
Transaction error!
spi_block_erase_52 failed during command execution at address 0x320000
Reading current flash chip contents... done. Looking for another erase function.
Transaction error!
spi_block_erase_d8 failed during command execution at address 0x320000
Reading current flash chip contents... done. Looking for another erase function.
Transaction error!
spi_nbyte_program failed during command execution at address 0x0
Reading current flash chip contents... done. Looking for another erase function.
Transaction error!
spi_nbyte_program failed during command execution at address 0x0
Looking for another erase function.
No usable erase functions left.
FAILED!
Uh oh. Erase/write failed. Checking if anything has changed.
Reading current flash chip contents... done.
Apparently at least some data has changed.
Your flash chip is in an unknown state.
Get help on IRC at chat.freenode.net (channel #flashrom) or
mail [e-mail] with the subject "FAILED: <your board name>"!
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DO NOT REBOOT OR POWEROFF!

(2) #./flashrom -V
flashrom v0.9.9-r1955 on Linux 3.14.42 (i686)
flashrom is free software, get the source code at https://flashrom.org

flashrom was built with libpci 3.2.1, GCC 4.9.2, little endian
Command line (1 args): ./flashrom -V
Please select a programmer with the --programmer parameter.
Previously this was not necessary because there was a default set.
To choose the mainboard of this computer use 'internal'. Valid choices are:
internal, dummy, nic3com, nicrealtek, gfxnvidia, drkaiser, satasii, atavia,
it8212, serprog, buspirate_spi, rayer_spi, pony_spi, nicintel, nicintel_spi,
nicintel_eeprom, ogp_spi, satamv, linux_spi.

Please help me
Best Regards
                                                                                                                                                                                                                                                                                                    Daming

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