Flash on ep8248e standard motherboards

Flash on ep8248e standard motherboards

[Bennett, Alan]

Hello;
We have a custom board based on the ep8248e design from Embedded Planet
and I'm trying to use something other than codewarrior to flash u-boot
srec's=20

I'm not sure where the problem is, but I'm unable to flash the
u-boot.srec onto the Embedded Planet board (using the BDI2000), let
alone our custom board.
   1. Embedded Planet ep8248E
        64 MB SDRAM
        64 MB Flash (x2 Am29LV256M)
   2. Custom
       128 MB SDRAM
       128 MB Flash (X2 Spansion S29GL512N)

NOTE: CW successfully flashes both parts, but then again, it's CW.


BDI 2000 Config File:
  ;  initialize - FLASH BR0 & OR0 (64 Mbyte)
  ;*******************************************
  WM32	0xf0010100 	0xfc001801
  WM32 	0xf0010104 	0xfc0008c2
  [FLASH]
  CHIPTYPE    MIRRORX16
  CHIPSIZE    0x2000000
  BUSWIDTH    16

I then attempt to unlock/erase/program
Check for Sanity (NOTE: using BDI 2000 PROMPT)
  md 0xf0010100 2
  f0010100 : 0xf8001801  - 134211583  ....
  f0010104 : 0xf80008b2  - 134215502  ....
  md 0xfff00000 2
  fff00000 : 0x10101010    269488144  ....
  fff00004 : 0x10101010    269488144  ....
All looks good.  (10101010 is the existing planet core header)

TRY TO UNLOCK
  unlock 0xfff00000 1000
  Unlocking flash at 0xfff00000
  # Invalid parameter for flash programming

TRY TO ERASE
  erase 0xfff00000 UNLOCK 1000
  Erasing flash at 0xfff00000
  # Erasing flash memory failed
BUT
  erase 0xffff0000 UNLOCK 1000
  Erasing flash at 0xffff0000
  Erasing flash passed
HOWEVER
  mm 0xffff0000 0xdeadbeef
  md 0xffff0000 1
  ffff0000 : 0xffffffff
SO it doesn't seem to allow write access afterall...

Is there anyone that has a BDI 2000 config file for flashing the ep8248e
motherboard the 8MB Flash Version (64 MB flash version)=20

Thanks
-Alan

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Flash on ep8248e standard motherboards

[Alan Bennett]

Please accept my apologies for sending the last email and accept this
email address and question.  without the disclaimer.
---------------------------------------------------

Hello;
We have a custom board based on the ep8248e design from Embedded
Planet and I'm trying to use something other than codewarrior to flash
u-boot srec's

I'm not sure where the problem is, but I'm unable to flash the
u-boot.srec onto the Embedded Planet board (using the BDI2000), let
alone our custom board.
   1. Embedded Planet ep8248E
        64 MB SDRAM
        64 MB Flash (x2 Am29LV256M)
   2. Custom
       128 MB SDRAM
       128 MB Flash (X2 Spansion S29GL512N)

NOTE: CW successfully flashes both parts, but then again, it's CW.


BDI 2000 Config File:
  ;  initialize - FLASH BR0 & OR0 (64 Mbyte)
  ;*******************************************
  WM32    0xf0010100     0xfc001801
  WM32     0xf0010104     0xfc0008c2
  [FLASH]
  CHIPTYPE    MIRRORX16
  CHIPSIZE    0x2000000
  BUSWIDTH    16

I then attempt to unlock/erase/program
Check for Sanity (NOTE: using BDI 2000 PROMPT)
  md 0xf0010100 2
  f0010100 : 0xf8001801  - 134211583  ....
  f0010104 : 0xf80008b2  - 134215502  ....
  md 0xfff00000 2
  fff00000 : 0x10101010    269488144  ....
  fff00004 : 0x10101010    269488144  ....
All looks good.  (10101010 is the existing planet core header)

TRY TO UNLOCK
  unlock 0xfff00000 1000
  Unlocking flash at 0xfff00000
  # Invalid parameter for flash programming

TRY TO ERASE
  erase 0xfff00000 UNLOCK 1000
  Erasing flash at 0xfff00000
  # Erasing flash memory failed
BUT
  erase 0xffff0000 UNLOCK 1000
  Erasing flash at 0xffff0000
  Erasing flash passed
HOWEVER
  mm 0xffff0000 0xdeadbeef
  md 0xffff0000 1
  ffff0000 : 0xffffffff
SO it doesn't seem to allow write access afterall...

Is there anyone that has a BDI 2000 config file for flashing the
ep8248e motherboard the 8MB Flash Version (64 MB flash version)

Thanks
-Alan

Re: Flash on ep8248e standard motherboards

[Laurent Pinchart]

Hi Alan,

On Tuesday 04 September 2007 20:08, Alan Bennett wrote:
> Please accept my apologies for sending the last email and accept this
> email address and question.  without the disclaimer.
> ---------------------------------------------------
>
> Hello;
> We have a custom board based on the ep8248e design from Embedded
> Planet and I'm trying to use something other than codewarrior to flash
> u-boot srec's
>
> I'm not sure where the problem is, but I'm unable to flash the
> u-boot.srec onto the Embedded Planet board (using the BDI2000), let
> alone our custom board.
>    1. Embedded Planet ep8248E
>         64 MB SDRAM
>         64 MB Flash (x2 Am29LV256M)
>    2. Custom
>        128 MB SDRAM
>        128 MB Flash (X2 Spansion S29GL512N)
>
> NOTE: CW successfully flashes both parts, but then again, it's CW.
>
>
> BDI 2000 Config File:
>   ;  initialize - FLASH BR0 & OR0 (64 Mbyte)
>   ;*******************************************
>   WM32    0xf0010100     0xfc001801
>   WM32     0xf0010104     0xfc0008c2
>   [FLASH]
>   CHIPTYPE    MIRRORX16
>   CHIPSIZE    0x2000000
>   BUSWIDTH    16
>
> I then attempt to unlock/erase/program
> Check for Sanity (NOTE: using BDI 2000 PROMPT)
>   md 0xf0010100 2
>   f0010100 : 0xf8001801  - 134211583  ....
>   f0010104 : 0xf80008b2  - 134215502  ....
>   md 0xfff00000 2
>   fff00000 : 0x10101010    269488144  ....
>   fff00004 : 0x10101010    269488144  ....
> All looks good.  (10101010 is the existing planet core header)
>
> TRY TO UNLOCK
>   unlock 0xfff00000 1000
>   Unlocking flash at 0xfff00000
>   # Invalid parameter for flash programming
>
> TRY TO ERASE
>   erase 0xfff00000 UNLOCK 1000
>   Erasing flash at 0xfff00000
>   # Erasing flash memory failed
> BUT
>   erase 0xffff0000 UNLOCK 1000
>   Erasing flash at 0xffff0000
>   Erasing flash passed
> HOWEVER
>   mm 0xffff0000 0xdeadbeef
>   md 0xffff0000 1
>   ffff0000 : 0xffffffff
> SO it doesn't seem to allow write access afterall...

You need to use the 'prog' command to write to flash. 'md' won't do.

> Is there anyone that has a BDI 2000 config file for flashing the
> ep8248e motherboard the 8MB Flash Version (64 MB flash version)

Regards,

=2D-=20
Laurent Pinchart
CSE Semaphore Belgium

Chauss=E9e de Bruxelles, 732A
B-1410 Waterloo
Belgium

T +32 (2) 387 42 59
=46 +32 (2) 387 42 75

Re: Flash on ep8248e standard motherboards

[Erik Christiansen]

On Tue, Sep 04, 2007 at 12:08:47PM -0600, Alan Bennett wrote:
> BDI 2000 Config File:
>   ;  initialize - FLASH BR0 & OR0 (64 Mbyte)
>   ;*******************************************
>   WM32    0xf0010100     0xfc001801
>   WM32     0xf0010104     0xfc0008c2
>   [FLASH]
>   CHIPTYPE    MIRRORX16
>   CHIPSIZE    0x2000000
>   BUSWIDTH    16

Having just taken delivery of an ep8248e, I'm surprised that the
supplied flash config is commented out and erroneous:

[FLASH]
;CHIPTYPE    AM29F       ;Flash type (AM29F | AM29BX8 | AM29BX16 | I28BX8 | I28BX16)
;CHIPSIZE    0x200000    ;The size of one flash chip in bytes (e.g. AM29F010 = 0x20000)
;BUSWIDTH    8           ;The width of the flash memory bus in bits (8 | 16 | 32 | 64)
;

Did you start with the Embedded Planet offering, in your current effort
to create a usable config? Is MIRRORX16 more than a guess?

I've found that my flash chips are "spansion GL256N10FFI02", which
AFAICT are S29GL256N10FFI02 from AMD, as we used to know them.
I wonder if S29M32X16 is a likely guess for CHIPTYPE on the card which
has landed in my lap?

Maybe the most important question is: Will a wrong algorithm choice let
the magic smoke out?

Erik
(With just one toenail on the road, so far.)

Re: Flash on ep8248e standard motherboards

[Ben Warren]

Erik Christiansen wrote:
> On Tue, Sep 04, 2007 at 12:08:47PM -0600, Alan Bennett wrote:
>   
>> BDI 2000 Config File:
>>   ;  initialize - FLASH BR0 & OR0 (64 Mbyte)
>>   ;*******************************************
>>   WM32    0xf0010100     0xfc001801
>>   WM32     0xf0010104     0xfc0008c2
>>   [FLASH]
>>   CHIPTYPE    MIRRORX16
>>   CHIPSIZE    0x2000000
>>   BUSWIDTH    16
>>     
>
> Having just taken delivery of an ep8248e, I'm surprised that the
> supplied flash config is commented out and erroneous:
>
> [FLASH]
> ;CHIPTYPE    AM29F       ;Flash type (AM29F | AM29BX8 | AM29BX16 | I28BX8 | I28BX16)
> ;CHIPSIZE    0x200000    ;The size of one flash chip in bytes (e.g. AM29F010 = 0x20000)
> ;BUSWIDTH    8           ;The width of the flash memory bus in bits (8 | 16 | 32 | 64)
> ;
>
> Did you start with the Embedded Planet offering, in your current effort
> to create a usable config? Is MIRRORX16 more than a guess?
>
> I've found that my flash chips are "spansion GL256N10FFI02", which
> AFAICT are S29GL256N10FFI02 from AMD, as we used to know them.
> I wonder if S29M32X16 is a likely guess for CHIPTYPE on the card which
> has landed in my lap?
>
>   
MIRRORX16 is the correct type for Spansion GL series NOR flash. AMD spun 
off their flash business a while ago and renamed it Spansion. If you 
look on the datasheet you'll see that Spansion calls the GL technology 
'MirrorBit', and in all likelihood the device has a 16-bit data bus. The 
AMD algorithm may work but the MIRRORX16 definitely will.

regards,
Ben

Re: Flash on ep8248e standard motherboards

[Erik Christiansen]

On Thu, Sep 13, 2007 at 10:10:06AM -0400, Ben Warren wrote:
> >  
> MIRRORX16 is the correct type for Spansion GL series NOR flash. AMD spun 
> off their flash business a while ago and renamed it Spansion. If you 
> look on the datasheet you'll see that Spansion calls the GL technology 
> 'MirrorBit', and in all likelihood the device has a 16-bit data bus. The 
> AMD algorithm may work but the MIRRORX16 definitely will.

Yes, the "Flash Organisation" section of the ep8248e manual shows two
16-bit devices. (That's what seemed erroneous in the BDI2000 config file
supplied with the card. ;-)

Many thanks for putting me on the right track w.r.t. CHIPTYPE. It'll
save me trying all the wrong guesses first.

Regards,
Erik