RFC: [PATCH] MTD OneNAND: multiblock erase support

Kyungmin Park kyungmin.park at samsung.com
Thu Jun 18 03:01:00 EDT 2009

On Mon, Jun 15, 2009 at 8:02 PM, Mika Korhonen<mika.j.korhonen at gmail.com> wrote:
> 2009/6/15 Adrian Hunter <adrian.hunter at nokia.com>:
>> Mika Korhonen wrote:
>>> I wrote an initial support for OneNAND multiblock erase feature.  When
>>> done in maximum 64 eraseblock batches multiblock erase is up to 30x
>>> faster than block-by-block erase (not including erase verify, though).
>>> However, I only had possibility to test this with an OMAP board, so I
>>> don't know if e.g. the default onenand_wait needs adjustment. Also for
>>> Flex-OneNAND the support goes off. Does Flex even have mb erase?
>>> What do you think?
>> I expect all OneNAND support multiblock erase, so the config should
>> go away.  Kyungmin can probably comment on that.
> Yes, I was thinking about that as well. Is it included in all chips?

So I got mistake, the Flex-OneNAND don't support the multi-block
erase. Instead it support the erase suspend & resume

Thank you,
Kyungmin Park

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