[U-Boot] U-boot not finding NAND chip on imx28EVK - Gives DMA read error

[Fabio Estevam]

Bill,

On Mon, Aug 6, 2012 at 11:34 AM, Bill <bsousan at techsi.com> wrote:
> All,
>
>        I enabled my U-boot for NAND support for my imx28EVK and I get the
> following error when U-Boot starts:
>
>
> NAND:  MXS NAND: Error sending command
> MXS NAND: Error sending command
> MXS NAND: DMA read error
> MXS NAND: DMA read error
> MXS NAND: Error sending command
> ...
>
>     I am using U-boot version  U-Boot 2012.07-rc1.   I also have the NAND
> support enabled in /include/configs/mx28evk.h  by adding  CONFIG_CMD_NAND.
>     The NAND chip I am using is:  Micron  MT29F1G08ABADA.

I have just tried the most recent u-boot-imx git, enabled
CONFIG_CMD_NAND in the mx28evk.h and the NAND is detected fine:

U-Boot 2012.07-08388-g9ce4714-dirty (Aug 06 2012 - 12:26:16)

CPU:   Freescale i.MX28 rev1.2 at 454 MHz
BOOT:  SSP SD/MMC #0, 3V3
I2C:   ready
DRAM:  128 MiB
NAND:  2048 MiB
MMC:   MXS MMC: 0
In:    serial
Out:   serial
Err:   serial
Net:   FEC0, FEC1
Hit any key to stop autoboot:  0

MX28EVK U-Boot > nand info

Device 0: nand0, sector size 256 KiB
  Page size      2048 b
  OOB size         64 b
  Erase size   262144 b
MX28EVK U-Boot >

The NAND I am using is K9LAG08U0M.

Regards,

Fabio Estevam