[U-Boot-Users] Intel Strata Flash Embedded Memory (P33) on a MPC8xx board with u-boot 1.2.0

[Tolunay Orkun <listmember@orkun.us>]

SETTE AGOSTINO - technolabs wrote:
> Hello all,
>
> I'm working with u-boot 1.2.0 on a board with MPC8xx processor and
> Intel Strata Flash Embedded Memory (I28F128P33B) mounted.
> Up to now I am trying to read the Device Identifier Information with the
> Abatron BDI2000 but I am a little bit confused.
> In fact I have the following output on the display
>
> NEW_CCM_LC>mdh 0x40000000
> 40000000 : 0089 8821 0001 0001 0089 bfcf 0001 0001  ...!............
> 40000010 : 0089 8821 0001 0001 0089 bfcf 0001 0001  ...!............
> 40000020 : 0051 0052 0059 0001 0000 000a 0001 0000  .Q.R.Y..........
> 40000030 : 0000 0000 0000 0023 0036 0085 0095 0008  .......#.6......
> 40000040 : 0009 000a 0000 0001 0001 0002 0000 0018  ................
> 40000050 : 0001 0000 0006 0000 0002 0003 0000 0080  ................
> 40000060 : 0000 007e 0000 0000 0002 0000 0000 0000  ...~............
>
> On the Intel Strata Flash Embedded Memory (P33) is written that at
> offset 0x10 I should find thw CFI Query identification string but,
> As you can see, I have them at offset 0x20.
>   
You are using word mode. Offsets differ between word and byte modes. 
Read the data sheet more carefully..

> Anyway, after the unlock of the flash and the erasing I tried to load a
> u-boot 1.2.0 generated for the board and was loaded correctly
> (I read back the u-boot label at the beginning of the flash).
>   

If after verifying the data using BDI command it checks OK you programed 
your flash OK.

> The problem is that it doesn't start.
> Does anyone know if there is a u-boot code available to manage this kind
> of flash?
>   

Programming the flash does not mean that you have a fully functional 
hardware. It also does not mean that U-Boot is correctly configured and 
implemented for your board. Anything can go wrong and your code will not 
boot.

Tolunay