Messages in this thread | | | Date | Wed, 05 Feb 2014 14:53:25 +0100 | From | Boris BREZILLON <> | Subject | Re: [RFC PATCH 1/9] mtd: nand: retrieve ECC requirements from Hynix READ ID byte 4 |
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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@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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