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

U-Boot Bill 2 participants 3 messages Aug 6, 2012

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Bill

author

2012-08-06 14:34 UTC #0 lore raw

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.

Thanks,
Bill

Fabio Estevam

2012-08-06 15:34 UTC #1 lore raw

Bill,

Quoted 13 lines · Bill

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
...

Quoted 3 lines

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

Bill

author

2012-08-06 16:38 UTC #2 lore raw

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

Best,
Bill

Quoted 49 lines · Fabio Estevam

Bill,
Quoted 13 lines · Bill
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
...
Quoted 3 lines
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

Signature · 8 lines

William (Bill) L. Sousan, Ph.D.
(w) 402.331.4977 ext. 4002
bsousan at techsi.com
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