[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 
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.


Best Regards,

> Why do you need this ECC information, for my reference?
> Brian

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