Re: [RFC PATCH 1/9] mtd: nand: retrieve ECC requirements from HynixREAD ID byte 4
From: Boris BREZILLON
Date: Wed Feb 05 2014 - 08:54:28 EST
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@xxxxxxxxxxx>
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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