[RFC PATCH 1/9] mtd: nand: retrieve ECC requirements from Hynix READ ID byte 4
Boris BREZILLON
b.brezillon at overkiz.com
Wed Feb 5 08:53:25 EST 2014
Hello Brian,
On 23/01/2014 02:49, Brian Norris wrote:
> + Huang
>
> Hi Boris,
>
> On Wed, Jan 08, 2014 at 03:21:56PM +0100, Boris BREZILLON wrote:
>> The Hynix nand flashes store their ECC requirements in byte 4 of its id
>> (returned on READ ID command).
>>
>> Signed-off-by: Boris BREZILLON <b.brezillon at overkiz.com>
> I haven't verified yet (perhaps Huang can confirm?), but this may be
> similar to a patch Huang submitted recently. In his case, we found that
> this table is actually quite unreliable and is likely hard to maintain.
Indeed (as stated in this thread
http://comments.gmane.org/gmane.linux.drivers.mtd/50252).
I'll remove this patch from the next version of this series and make use
of the
nand-ecc-strength /nand-ecc-size DT properties instead.
Thanks.
Best Regards,
Boris
>
> Why do you need this ECC information, for my reference?
>
> Brian
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