Other Parts Discussed in Thread: TSC2046, MIDAS, SYSCONFIG
I'm having no luck getting anything out of the rx register of the omap spi on port 4. I have scoped the data on all four signals connected to a touchscreen controller and the signals look exactly like I would expect. In fact, the chip-select, SIMO and clock lines are working fine from the omap and data is being sent back from the touchscreen controller as expected. The problem is that I can't seem to get anything but zeros out of the rx register. There doesn't seem to be a problem with my muxing (spi4 somi is set to only one pin and the mode on the pin is correct).
I'm curious if anyone else has tried to use the spi on the OMAP35xx series with success. Because right now it would seem that there's either a major issue with the mcspi driver in Linux (which as far as I can tell is correct) or there is a problem in the hardware. If someone has had it working then please let me know under what circumstance.
~Kevin