AM2432: about uart boot mode sbl_uart_uniflash.release.hs_fs.tiimage source code

Tool/software:

Hi,

I am running TMDS243EVM from box.

so the first step is config it to uart mode and load uart image by uart_uniflash.py.

May I ask  what is   ti image about sbl_uart_uniflash.release.hs_fs.tiimage?

I know it will start uart server and wait for the further instruction.

But more detail,  do you have source code of this tiimage?  

Thanks.