Hi Iwo, On Mon, 29 Sep 2014 11:22:11 +1000 Iwo Mergler <[email protected]> wrote:
> On Thu, 11 Sep 2014 22:36:16 +1000 > Boris BREZILLON <[email protected]> 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. Okay. Anyway, the test I'm really interested in is the incremental bit errors test :-). BTW, any reason you chose to implement this test/testsuite as a module ? >From my understanding (and tell me if I'm wrong) we could do the same from user-space. Best Regards, Boris -- Boris Brezillon, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
