Re: [PATCH 1/2] nand: nand_bbt: Export nand_update_bbt

[Huang Shijie <b32955@freescale.com>]

于 2012年08月24日 14:41, Artem Bityutskiy 写道:
> The default function seem to do the same as your function does. You
> select where you keep your OOB using chip options, and the default
> function does the right thing, no?
The key issue is that the mx23 should copies the bad block mark into the 
"first byte of the nand page",
while the other chips does do this.

I don't think the default function do the same thing. You see:
   nand_default_block_markbad() --> nand_do_write_oob() --> 
chip->ecc.write_oob() -->gpmi_ecc_write_oob()

The gpmi_ecc_write_oob() does nothing,but return -EPERM.

Huang Shijie