From: Alan Bennett <hidden> Date: 2007-09-04 18:08:50
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
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)
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.)
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
From: Erik Christiansen <hidden> Date: 2007-09-14 00:46:12
On Thu, Sep 13, 2007 at 10:10:06AM -0400, Ben Warren wrote:
quoted
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