The ROM is left in-circuit, and the LeapTV is powered up after the Raspberry Pi boots. Power is provided by the LeapTV system board. More relevant information is available on the page linked above, including an image of the setup.
root@raspberrypi:~# flashrom -p linux_spi:dev=/dev/spidev0.0 -r 2016010801.bin
flashrom v0.9.8-r1916 on Linux 4.1.15+ (armv6l)
flashrom is free software, get the source code at
https://flashrom.orgCalibrating delay loop... OK.
Found Micron/Numonyx/ST flash chip "M25PE40" (512 kB, SPI) on linux_spi.
===
This flash part has status UNTESTED 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!
Reading flash... done.
root@raspberrypi:~# ls
(removed unrelated tty history)