TI X-loader/MOL 1st stage Bootloader to initialize SDRAM

Bootloader Project
http://omappedia.org/wiki/Bootloader_Project

3.1. U-Boot
http://software-dl.ti.com/processor-sdk-linux/esd/docs/latest/linux/Foundational_Components_U-Boot.html

https://stackoverflow.com/questions/34805383/why-is-mlo-needed-in-boot-step

what is the use of SPL (secondary program loader)
https://stackoverflow.com/questions/31244862/what-is-the-use-of-spl-secondary-program-loader


http://software-dl.ti.com/processor-sdk-linux/esd/docs/latest/linux/Foundational_Components_U-Boot.html