According to OMAP35xx Application Processor TRM, SPRUF98G, April 2010–Revised May 2010,
page 255:
Solution 2: Use of an external square clock source. SYS_XTALOUT pin is UNUSED and left floating. On page 3354 of the same document: SYS_XTALOUT pin is UNUSED and grounded. Should we leave SYS_XTALOUT pin floating or connect it to ground?
