Sitara系列:
AM57x EMIF Tools:
https://www.ti.com/lit/an/sprac36e/sprac36e.pdf
AM437x DDR Configuration guide:
https://processors.wiki.ti.com/index.php/AM437x_DDR_Configuration_and_Programming_Guide
AM335x/AM11x EMIF Configuration Tools:
https://processors.wiki.ti.com/index.php/AM335x_EMIF_Configuration_tips
Keystone系列:
Keystone II DDR guide：
https://www.ti.com/lit/an/sprabx7/sprabx7.pdf
Keystone II DDR debug guide：
https://www.ti.com/lit/an/sprac04/sprac04.pdf
Keystone I DDR Initialization：
