[U-Boot-Users] BDI/flash question

George G. Davis davis_g at comcast.net
Thu Jan 15 04:40:04 CET 2004

On Wed, Jan 14, 2004 at 08:44:30PM -0600, Ed Okerson wrote:
> After spending the time (and money) on getting the BDI2000 and u-boot
> working on the DBAU1500 board, our hardware guys finally delivered me a
> couple of our own design boards with Au1500 processors on them.  I
> connected the BDI2000 to one of our boards, and when it wouldn't erase the
> flash and after a call to the HW engineer, found out that it has a
> different flash.  OK, changed the flash type to the correct one, and also
> the bus width was changed to 16 as opposed to the 32 on the DBAU1500.  The
> BDI will now erase and program the flash, but u-boot won't come up.  After
> a bit of digging I found that after an erase the flash looks like this:
> BDI>md 0xbfc00000
> bfc00000 : 0000ffff 0000ffff 0000ffff 0000ffff  ................
> bfc00010 : 0000ffff 0000ffff 0000ffff 0000ffff  ................
> bfc00020 : 0000ffff 0000ffff 0000ffff 0000ffff  ................
> bfc00030 : 0000ffff 0000ffff 0000ffff 0000ffff  ................
> and on, and on.....
> Does anyone have any idea what could cause this?  Our HW guy is pouring

I've no idea really, but have you verified correct BUSWIDTH, e.g.:

BUSWIDTH    {8,16,32}?


> over the schematics trying to find something, but I want to make sure it
> isn't something stupid I did on the BDI2000 config.
> Ed Okerson
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