[PATCH] mtd: add a new macro about the subpage write

Huang Shijie shijie8 at gmail.com
Fri Jul 13 10:00:39 EDT 2012


On Fri, Jul 13, 2012 at 6:35 AM, Marek Vasut <marex at denx.de> wrote:
> Dear Huang Shijie,
>
>> Hi Brian:
>> > Wood [1]; I don't see a good reason not to just kill the
>> > NAND_CHIPOPTIONS_MSK instead of adding more flags. As long as we
>> > perform a few sanity tests, I think it'd be safe.
>>
>> I think it's more clear in logic to add this new macro:
>>     The NAND_NO_SUBPAGE_WRITE can be used only by the MLC nands which do
>> no support the subpage write;
>>     The NAND_CONTROLLER_NO_SUBPAGE_WRITE only used by the nand
>> controller such as gpmi nand.
>
> It's not clearer at all. It's just more error-prone.
ok, thanks. But I do not how to fix it now. I hope some one could give a patch.

Best Regards
Huang Shijie

>
>> But I will be happy if you submit a patch to fix this issue by removing
>> the NAND_CHIPOPTIONS_MSK.
>
> I'd be happy if the GPMI NAND driver was properly fixed, 6 months after
> reporting this bug, which is quite critical as UBI doesn't work because of that
> and it's being silently ignored.
>
>> thanks
>> Huang Shijie
>
> Best regards,
> Marek Vasut



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