[PATCH V4 4/9] mtd: get the ECC info from the Extended Parameter Page

[Gupta, Pekon]

> Since the ONFI 2.1, the onfi spec adds the Extended Parameter Page
> to store the ECC info.
> 
> The onfi spec tells us that if the nand chip's recommended ECC codeword
> size is not 512 bytes, then the @ecc_bits is 0xff. The host _SHOULD_
> then
> read the Extended ECC information that is part of the extended
> parameter
> page to retrieve the ECC requirements for this device.
> 
> This patch implement the reading of the Extended Parameter Page, and
> parses
> the sections for ECC type, and get the ECC info from the ECC section.
> 
> Tested this patch with Micron MT29F64G08CBABAWP.
> 
> Signed-off-by: Huang Shijie <b32955 at freescale.com>

Acked-by: Pekon Gupta <pekon at ti.com>

Thanks..
with regards, pekon