I'm using the i.mx6ul processor. I think that maybe the fact that I'm using the FEC ports as the 8x8 kpp input is possibly causing a kernel hangup. In the imx_v7_deconfig, there's no line for CONFIG_FEC for me to comment out. How do I disable FEC without causing build errors? If I try setting status="disabled" in the device tree, I get build errors. Also, I don't see a way to setup pinmux to have the KPP use the FEC pads, which is where my keypad is connected. I see the example setup for the keypad in the device tree, but that doesn't tell how to setup pin muxing or how to disable the FEC 1 and 2, even though the KPP uses the FEC pads.