tree 2820d54a20bb4ae10adc5b74fed3449f23ad10f4
parent 47cea9a2446c1078226f5a387f5afbf6ab6743c2
author Nico Huber <nico.h@gmx.de> 1774190845 +0100
committer Nico Huber <nico.h@gmx.de> 1784311624 +0000

nicamd: Introduce new programmer driver for AMD NICs

On a PCnet32 FAST card with a nice PLCC32 socket, only 18 of the 20 ad-
dress lines were connected. It's not easy to detect this, but we'll do
our best: Check the ROM contents for repeating patterns, and allow the
user to override the guessed size. We use the ROM BAR here, though not
for the actual flash reading / writing. According to the datasheet the
ROM BAR interface always reads four bytes, and doesn't seem to support
writes.

Otherwise tested successfully with the first 256KiB of an SST39VF040.

Datasheet used:
https://www.amd.com/content/dam/amd/en/documents/archived-tech-docs/datasheets/20550.pdf

Change-Id: I3bddfcd1e242d28790a0916197ebd8b8bba5a70a
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.sourcearcade.org/c/flashprog/+/530
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>