Richard Danter wrote:
Wolfgang Denk wrote:
In message 42D2DC59.6090507@ntlworld.com you wrote:
Is there a driver that supports this flash within U-Boot? I can't see one, but want to make sure I didn't miss it before I reinvent the wheel!
There are several. First, there is the general CFI driver, and then there are several board specific drivers like board/tqm8260/flash.c
I have tried both of the suggested drivers with neither working for me.
I have spent more time looking at the tqm8260/flash.c and have managed to make some improvements. Initially it was unable to even read back the device type but I noticed that if I single stepped (using JTAG) the flash_get_size() function then it _was_ able to correctly read the device type.
It seems with my board I _have_ to write data 64-bits at a time. Writing the lower 32-bits and then the upper 32-bits does not work.
I'm using the FP registers now and all works fine.
Rich