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

[Bill]

Thanks.  That did it - grabbed recent version and it works.

Best,
Bill


On 8/6/2012 10:34 AM, Fabio Estevam wrote:
> 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

-- 
William (Bill) L. Sousan, Ph.D.
(w) 402.331.4977 ext. 4002
bsousan at techsi.com
Technical Support Inc.
11253 John Galt Blvd
Omaha, NE 68137
www.techsi.com
8(a) SDB Certified, ISO 9001:2008