We are using all of the serial ports in our design. Serial2 had a problem, this is the support email I got:
[Ticket #10619] FW: Serial2 on imx31 SOM does not work
Quote:
Mike,
We recently found that problem as well. It turns out that LOLO is
improperly initializing the IOMUX register within the IMX31 due to an
undocumented dependancy in the MX31 reference manual. You can fix this
by executing this command in LOLO before starting your image:
w /w 0x43fac008 0x0000000c
Let me know if this works for you.
Do I need this now???