debian@arm:~/libreboot_bin$ sudo flashrom/armv7l/flashrom -p linux_spi:dev=/dev/spidev3.0,spispeed=512
flashrom v0.9.7-unknown on Linux 3.18.1-armv7-x2 (armv7l)
flashrom is free software, get the source code at http://www.flashrom.org

Calibrating delay loop... OK.
Found Generic flash chip "unknown SPI chip (RDID)" (0 kB, SPI) on linux_spi.
===
This flash part has status NOT WORKING for operations: PROBE 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 flashrom@flashrom.org 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!
No operations were specified.