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EEPROM support: handle implicit erase

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Add support for EEPROMs with 1 byte granularity and implicit erase on
write. flashrom will not try to erase before write on these chips.
Explicitly requested erase with -E is done by writing 0xff.

Corresponding to flashrom svn r1822.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
This commit is contained in:
Carl-Daniel Hailfinger
2014-06-16 22:36:17 +00:00
parent 600576b43d
commit 1b0e9fc8ea
2 changed files with 6 additions and 0 deletions
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flash.h
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@ -87,6 +87,7 @@ enum write_granularity {
write_gran_528bytes, /* If less than 528 bytes are written, the unwritten bytes are undefined. */
write_gran_1024bytes, /* If less than 1024 bytes are written, the unwritten bytes are undefined. */
write_gran_1056bytes, /* If less than 1056 bytes are written, the unwritten bytes are undefined. */
write_gran_1byte_implicit_erase, /* EEPROMs and other chips with implicit erase and 1-byte writes. */
};
/*