imx8mn booting

[Michael Nazzareno Trimarchi]

Hi all

I have this sequence

U-Boot SPL 2020.04-5.4.70-2.3.2+g8991308b4b (May 12 2021 - 12:44:10 +0000)
spl_init
power_bd71837_init
DDRINFO: start DRAM init
DDRINFO: DRAM rate 1600MTS
DDRINFO:ddrphy calibration done
DDRINFO: ddrmix config done
>>SPL: board_init_r()
Normal Boot
Trying to boot from BOOTROM
Find FIT header 0x&4403c1a0, size 1047
Need continue download 1024
fit read sector 4403c1a0, sectors=1048, dst=401ffb80, count=1048, size=0x418
firmware: 'uboot at 1'
External data: dst=40200000, offset=3000, size=a1010
fdt: 'fdt at 1'
External data: dst=402a1040, offset=a4010, size=6b20
loadables: 'atf at 1'
External data: dst=960000, offset=aab30, size=b1b0
loadables: 'tee at 1'
External data: dst=48000000, offset=b5ce0, size=203e70
no string for index 2
Download 2856176, total fit 2857808
fit read sector 4403c1a0, sectors=1048, dst=401ffb80, count=1048, size=0x418
firmware: 'uboot at 1'
External data: dst=40200000, offset=3000, size=a1010
fdt: 'fdt at 1'
External data: dst=402a1040, offset=a4010, size=6b20
loadables: 'atf at 1'
External data: dst=960000, offset=aab30, size=b1b0
loadables: 'tee at 1'
External data: dst=48000000, offset=b5ce0, size=203e70
no string for index 2
Jumping to U-Boot
loaded - jumping to U-Boot...
image entry point: 0x960000

I need to move some components to fit on 256Mb but I would like to
know if I can get to atf and atf is running or not. During this time I
need to use the same uart
of the spl but I don't find any debug printing in the code (imx-atf).
Can someone has some experience?

Michael