Re: [PATCH v2] mtd: cfi_cmdset_0002: cap the write-buffer chunk at 256 bytes on an x8 device

[Orgad Shaneh]

Hi Miquel,

Thanks for the review. v3 sent as a reply to v2.

> This sentence does not mean anything, I'm sorry.

Rewritten: the count goes out as a single bus word, CMD() replicates it
into every device lane, and an x8 part reads it off eight data lines, so
anything above 255 is truncated there.

> failed? do you have hardware that actually triggered that issue?

Yes - a Cavium Octeon CN6335 board whose NOR is an M29EW strapped to x8.
The log in the commit message is from it, and the clamp fixes it. v3
names the board.

> That's incorrect. It indicates until when we need to backport it.

Added. I checked the code is really there: 1da177e4c3f4 already sends
CMD(words - 1) and already takes the chunk size from MaxBufWriteSize.

Vignesh is on To: for v3.

Thanks,
Orgad