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Boot from NAND on P1020 WLAN

Question asked by Kevin Cheng on Jun 9, 2015
Latest reply on Jul 14, 2015 by Yiping Wang

Hi ,

 

We begin to study P1020 Chip on P1020WLAN EVB. And Try to boot from NAND. There have some trouble.

When we boot u-boot from NOR Flash, and try to load u-boot-nand.bin from tftp. And do the command from document "BSP Targeting P1020/P2020 RDB" section "5.3.13".

Beside tftp work , the follow command seems not work,

 

When do "nand erase 0 80000", show the follow message, it is correct?

  Skipping bad block at  0x00000000

  Skipping bad block at  0x00020000

  Skipping bad block at  0x00040000

  Skipping bad block at  0x00060000

  Skipping bad block at  0x00080000

---------------------------------------------------------------

 

And next command "nand write 1000000 0 80000", show the follow message. It seems not write date to the nand flash.

NAND write: device 0 offset 0x0, size 0x80000

Attempt to write outside the flash area

0 bytes written: ERROR

---------------------------------------------------------------

 

Try to do "nand dump 0", message always display "F0".

Page 00000000 dump:

        f0 f0 f0 f0 f0 f0 f0 f0  f0 f0 f0 f0 f0 f0 f0 f0

        f0 f0 f0 f0 f0 f0 f0 f0  f0 f0 f0 f0 f0 f0 f0 f0

        f0 f0 f0 f0 f0 f0 f0 f0  f0 f0 f0 f0 f0 f0 f0 f0

        f0 f0 f0 f0 f0 f0 f0 f0  f0 f0 f0 f0 f0 f0 f0 f0

        f0 f0 f0 f0 f0 f0 f0 f0  f0 f0 f0 f0 f0 f0 f0 f0

 

 

On the above action, have someone tell us what thing we lose or not to do ?  Thanks!!

 

 

Regards,

 

Kevin

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