Please note this is not an exclusive list. The training materials available about a particular product can be found by searching for that part number on www.ti.com and then click "Support & training".
Training Series from Device Perspective:
AM57x Sitara Processors Training Series
AM437x Sitara Processors Training Series
KeyStone/C66x ARM & DSP Multicore Device Training Series
66AK2Gx Processor Training Series
C55x Digital Signal Processor Training Series
Training Series from Software Perspective
Training Series from Applications Perspective
EtherCAT Master on Sitara Processors Training Series
EP Voice Recognition Systems Training Series
AMIC110 Multiprotocol Industrial Interface for Closed-loop Delfino Control Systems Training Series
Training Series from "How to Videos" Perspective