[flashrom] How to suffix similar-but-different parts?
dhendrix at google.com
Wed Jul 25 21:14:33 CEST 2012
There's a SPI chip named "N25Q064" with 1.8V and 3V variants N25Q064A11 and
N25Q064A13, respectively. The 1.8V has A11 suffixed, and the 3V version has
A13 suffixed. The 'A' indicates the process technology which is likely to
change without a change of device ID, so it's likely that we'll see
something like N25Q064B11 or N25Q064B13 in the future.
Fortunately, the two variants have different JEDEC IDs (0xBA17 and 0xBB17).
So at least we can tell them apart via probing.
stefanct and I were discussing how to name this chip couldn't really come
up with a good solution. I am thinking that "N25Q064" is sufficient and
that we should just re-use the same .name for two chip entries with
different .voltage parameters.
David Hendricks (dhendrix)
Systems Software Engineer, Google Inc.
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