Thank you @SteeMan for pointing invalid value.
Maybe this will help someone: For my configuration serial works only on UART2_TX_M0 and UART2_RX_M0.
This is the log from my device:
9fffbe1e78 cym 24/02/04-10:09:20,fwver: v1.16
LPDDR5, 2400MHz
channel[0] BW=16 Col=10 Bk=16 CS0 Row=16 CS=1 Die BW=16 Size=2048MB
channel[1] BW=16 Col=10 Bk=16 CS0 Row=16 CS=1 Die BW=16 Size=2048MB
channel[2] BW=16 Col=10 Bk=16 CS0 Row=16 CS=1 Die BW=16 Size=2048MB
channel[3] BW=16 Col=10 Bk=16 CS0 Row=16 CS=1 Die BW=16 Size=2048MB
Manufacturer ID:0xff
CH0 RX Vref:27.9%, TX Vref:18.0%,0.0%
CH1 RX Vref:27.1%, TX Vref:20.0%,0.0%
CH2 RX Vref:26.7%, TX Vref:18.0%,0.0%
CH3 RX Vref:25.4%, TX Vref:20.0%,0.0%
change to F1: 534MHz
change to F2: 1320MHz
change to F3: 1968MHz
change to F0: 2400MHz
out
U-Boot SPL board init
U-Boot SPL 2017.09-armbian-2017.09-Sf73b-Pc965-H8c72-V6123-Bda0a-R448a (Aug 13 2 024 - 07:45:36)
Trying to boot from MMC2
spl: partition error
Trying fit image at 0x4000 sector
## Verified-boot: 0
## Checking atf-1 0x00040000 ... sha256(7612223b82...) + OK
## Checking uboot 0x00200000 ... sha256(939bc88f65...) + OK
## Checking fdt 0x00354c30 ... sha256(e3b0c44298...) + OK
fdt_record_loadable: FDT_ERR_BADMAGIC
## Checking atf-2 0xff100000 ... sha256(70505bb764...) + OK
fdt_record_loadable: FDT_ERR_BADMAGIC
## Checking atf-3 0x000f0000 ... sha256(b2af21b504...) + OK
fdt_record_loadable: FDT_ERR_BADMAGIC
Jumping to U-Boot(0x00200000) via ARM Trusted Firmware(0x00040000)
Total: 623.792/875.455 ms
INFO: Preloader serial: 2
NOTICE: BL31: v2.3():v2.3-868-g040d2de11:derrick.huang, fwver: v1.48
NOTICE: BL31: Built : 15:02:44, Dec 19 2024
INFO: spec: 0x1
INFO: code: 0x88
INFO: ext 32k is valid
INFO: ddr: stride-en 4CH
INFO: GICv3 without legacy support detected.
INFO: ARM GICv3 driver initialized in EL3
INFO: valid_cpu_msk=0xff bcore0_rst = 0x0, bcore1_rst = 0x0
INFO: l3 cache partition cfg-0
INFO: system boots from cpu-hwid-0
INFO: disable memory repair
INFO: idle_st=0x21fff, pd_st=0x11fff9, repair_st=0xfff70001
INFO: dfs DDR fsp_params[0].freq_mhz= 2400MHz
INFO: dfs DDR fsp_params[1].freq_mhz= 534MHz
INFO: dfs DDR fsp_params[2].freq_mhz= 1320MHz
INFO: dfs DDR fsp_params[3].freq_mhz= 1968MHz
INFO: BL31: Initialising Exception Handling Framework
INFO: BL31: Initializing runtime services
WARNING: No OPTEE provided by BL2 boot loader, Booting device without OPTEE init ialization. SMC`s destined for OPTEE will return SMC_UNK
ERROR: Error initializing runtime service opteed_fast
INFO: BL31: Preparing for EL3 exit to normal world
INFO: Entry point address = 0x200000
INFO: SPSR = 0x3c9
No valid device tree binary found - please append one to U-Boot binary, use u-bo ot-dtb.bin or define CONFIG_OF_EMBED. For sandbox, use -d <file.dtb>
initcall sequence 00000000002d2af8 failed at call 00000000002c5028 (err=-1)
### ERROR ### Please RESET the board ###
Currently installed uboot packges:
I'm newbie here so if additional configuration is required I'd appreciate any suggestion.