AM62A7: How can I load DTB in CCS?How can debug u-boot-spl in ccs ?

I use 8.6 SDK default config.Why are there not DTB config into u-boot-spl?

How can I set config files.

Dont it config DTB to tiboot3.bin?

Now I have problem in uart print log.So I should be assisted by CCS and JTAG.

But there are another problem how   I can load DTB by CCS??