W25X64 tested and works with beaglebone black for lenovo x200.

[Andrew Engelbrecht]

i wasn't using the newest version of flashrom, but in case you don't
have this chip marked as tested in the newest version, here is the
output for reading and writing this chip:

andrew
> root@beaglebone:~# ./flashrom -p linux_spi:dev=/dev/spidev1.0,spispeed=512 -r x200-0-bios-orig-1.rom                                                                                              
> flashrom v0.9.8-unknown on Linux 3.8.13 (armv7l)
> flashrom is free software, get the source code at http://www.flashrom.org
>
> Calibrating delay loop... OK.
> Found Winbond flash chip "W25X64" (8192 kB, SPI) on linux_spi.
> ===
> This flash part has status UNTESTED for operations: READ ERASE WRITE
> The test status of this chip may have been updated in the latest development
> version of flashrom. If you are running the latest development version,
> please email a report to [e-mail] if any of the above operations
> work correctly for you with this flash chip. Please include the flashrom log
> file for all operations you tested (see the man page for details), and mention
> which mainboard or programmer you tested in the subject line.
> Thanks for your help!
> Reading flash... done.
>
> root@beaglebone:~/libreboot# ./flashrom -p linux_spi:dev=/dev/spidev1.0,spispeed=512 -w x200-8mb-libreboot.rom                                                                  
> flashrom v0.9.8-unknown on Linux 3.8.13 (armv7l)
> flashrom is free software, get the source code at http://www.flashrom.org
>
> Calibrating delay loop... OK.
> Found Winbond flash chip "W25X64" (8192 kB, SPI) on linux_spi.
> ===
> This flash part has status UNTESTED for operations: READ ERASE WRITE
> The test status of this chip may have been updated in the latest development
> version of flashrom. If you are running the latest development version,
> please email a report to [e-mail] if any of the above operations
> work correctly for you with this flash chip. Please include the flashrom log
> file for all operations you tested (see the man page for details), and mention
> which mainboard or programmer you tested in the subject line.
> Thanks for your help!
> Reading old flash chip contents... done.
> Erasing and writing flash chip... Erase/write done.
> Verifying flash... VERIFIED.