Messages in this thread | | | From | Iwo Mergler <> | Date | Mon, 29 Sep 2014 11:22:11 +1000 | Subject | RE: [PATCH] mtd: nand: gpmi: add proper raw access support |
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On Thu, 11 Sep 2014 22:36:16 +1000 Boris BREZILLON <boris.brezillon@free-electrons.com> wrote: > > Well, I don't know about freescale specific tools, but at least I have > an example with mtd_nandbiterrs module. > This module is assuming it can write only the data part of a NAND page > without modifying the OOB area (see [1]), which in GPMI controller > case is impossible because raw write function store the data as if > there were no specific scheme, while there is one: > (metadata + n x (data_chunk + ECC bytes) + remaining_bytes). >
Hi Boris,
just as an aside, only the incremental bit errors test in nandbiterrs positively requires raw data write.
The overwrite test (re-write the same page data repeatedly without erase), only uses raw access because I was lazy. A normal ECC write would do just as well.
Best regards,
Iwo
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