[U-Boot-Users] u-boot erase doesnt work as expected.

Aubrey Li aubrey.adi at gmail.com
Tue Mar 27 16:34:30 CEST 2007


On 3/27/07, Ram <vshrirama at gmail.com> wrote:
> Im using Micron Nand Flash MT29F1G16ABB. Im using the u-boot nand driver code
> (drivers/nand). It uses large page sizes (2K)
>
>
> Im able to detect the nand chip, im able to write and read.
>
> However, When i do erase and read it back, The first 84 bytes is always
> constant which ever page i read. (2nd, 4th, 6th and so on are 0x42)
>
> I expect the erase to write 0xff to all the bytes in the flash.
>
>
>
> Page size=>0x800
> oobsize=>0x40
> Erase Block Size=>0x20000
>
> Am i missing something?.
>
Please refer to u-boot/doc/README.nand

-Aubrey




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