You are looking at an old revision of the page Installing-SLO. This revision was created by Nikolaus Schaller.
Table of Content
Recovery through SLO (Serial X-Loader)
Introduction
SLO is a early stage boot loader that can be loaded by the OMAP Boot ROM over a serial line (UART3) into SRAM and even works if NAND and MMC/SD cards fail.
After loading, it waits for U-Boot to be loaded through the ukermit protocol to SDRAM.
Please see http://projects.goldelico.com/p/gta04-main/page/SerialBoot/ how it works.