How common is OTP support in NAND flash?

[Artem Bityutskiy]

On Sun, 2012-05-13 at 07:25 -0700, Subodh Nijsure wrote:
> I see that MTD char drivers have support for programming the OTP pages 
> on NAND flash, some questions regarding that.
> 
> Do most flash chip vendors support on-flash OTP pages or if one develops 
> product that depends on using data from flash OTP, one would be locked 
> into that specific vendors.
> 
> And does anybody know if these OTP pages are also subjected to 
> bit-flipping or one shouldn't have to worry about that for OTP pages?

I think this OTP stuff is ad-hoc and was not designed carefully. I
cannot tell for sure, but most probably this is very vendor/HW -
specific.

-- 
Best Regards,
Artem Bityutskiy
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