On 2010/07/20 12:22 PM, Reinhard Meyer (-VC) wrote:
Rogan Dawes schrieb:
Unfortunately, but understandably, it makes no difference whatsoever to the behaviour of the flash chip. I can still put it into QRY mode, where I get the doubled QQRRYY response, but the flash is not detected any better than it was previously.
OOPS:
On our system (top5200) the behaviour is exactly as yours:
=> mm.b ff0000aa ff0000aa: 00 ? 98 ff0000ab: 00 ? . => md.l ff000000 ff000000: 00000000 00000000 00000000 00000000 ................ ff000010: 00000000 00000000 00000000 00000000 ................ ff000020: 51515252 59590202 00004040 00000000 QQRRYY....@@.... =>
But because of other constraints and since the port was done in 2003 we never tried to use the CFI driver ;) (our flash has 64MB but only the first 16 MB are memory mapped.)
Hardware: Spansion 29GL512 in 8-Bit mode, that means Flash D15/A(-1) connected to CPU A0 Flash A0 connected to CPU A1 Flash A1 connected to CPU A2 etc...
You might want to look at board/emk/common/flash.c for insights :)
Reinhard
I'll do that.
You're not tempted to try to fix the CFI driver for your board anyway, I suppose? :-)
Thanks for the pointer.
Rogan