Re: Problem with Hynix HY27UF081G2A 1Gb NAND flash?

["Jason Liu" <liu.h.jason@gmail.com>]

please send reset command(0xFF) to nand flash first then read id.

2008/9/19 Ricard Wanderlof <ricard.wanderlof@axis.com>:
>
> I'm testing the above mentioned NAND flash chip in a design which has
> previously used the corresponding 1Gb parts from Samsung and Numonyx (ST)
> without problems. However, with the Hynix chip, mtd won't even read the ID
> code, it's just as if the chip wasn't there (it fails with
>
> nand_get_flash_type: second ID read did not match 01,ec against ec,7a .
>
> Before deciding on a course of action, I was wondering if anyone else has
> had a similar problem. I've skimmed through the data sheet and cannot find
> anything that is obviously different (save for the manufacturer's ID code
> which is expected of course).
>
> Kernel version is 2.6.26.
>
> /Ricard
> --
> Ricard Wolf Wanderlöf                           ricardw(at)axis.com
> Axis Communications AB, Lund, Sweden            www.axis.com
> Phone +46 46 272 2016                           Fax +46 46 13 61 30
>    "With Free Software you are employing the best programmers on the planet"
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