Hello all,
I am trying to add dataflash support for the at91sam9m10g45ek to a recent version of u-boot (2010.06 or later). I have a patched version of u-boot-1.3.4 from linux4sam that works, and a glance at more recent code seems to show dataflash supported on other at91 boards in versions >= 2010.06. Using the linux4sam code and other atmel boards as a reference, I've added dataflash support for the at91sam9m10g45ek. It almost works, but I'm getting occasional bad reads leading to CRC failures and occasionally the SPI bus stops talking completely. After reviewing code, spec sheets, etc... I'm at a loss as why this is failing. I am mostly riding on top of the existing Atmel SPI dataflash support already in u-boot, basically just adding some board specific calls to init the SPI interface. Anyone here have any ideas? Any known hardware issues I need to be working around? Patches I should be looking at?
Thanks,
Thad Phetteplace