Add VIA VT6421A LPC programmer driver

Due to the mysterious address handling of this chip the user can specify
a base address with the offset parameter, e.g.:
flashrom -p atavia:offset=0xFFF00000

Thanks to Idwer Vollering for his iterative testing of this code, as well as to
Martijn Bastiaan who did the last tests before merging.

Corresponding to flashrom svn r1809.

Signed-off-by: Jonathan Kollasch <>
Signed-off-by: Stefan Tauner <>
Acked-by: Stefan Tauner <>
5 files changed