USB3.0 Super Speed Mass Storage device might be recognized as High Speed device or might not be recognized at all when used with Standard-A receptacle cable supplied with CM-T54 eval kit.
Workaround:
Use another cable or USB3.0 type-A to Micro USB3.0 type-B adaptor.
X Windows system
HDMI output mirrors smaller LCD screen size, when LCD is enabled.
Workaround: use xf86-video-omap Xorg driver.
SATA support
CM-T54 kernel 3.8.13 might fail to initialize SATA correctly.