• U-Boot logs
  from Port.C non TX-RX swap signal

NOTICE:  CPU: STM32MP135D Rev.Y
NOTICE:  Model: STMicroelectronics STM32MP135F-DK Discovery Board
NOTICE:  BL2: v2.6-stm32mp1-r1.0(release):2021.05-10169-gb885d5525a
NOTICE:  BL2: Built : 15:39:25, May 15 2024
NOTICE:  BL2: Booting BL32
optee optee: OP-TEE: revision 3.16 (b885d552)

U-Boot 2021.10-stm32mp-r1 (May 15 2024 - 15:39:22 +0800)

CPU: STM32MP135D Rev.?
Model: STMicroelectronics STM32MP135F-DK Discovery Board
Board: stm32mp1 in trusted mode (st,stm32mp135f-dk)
DRAM:  512 MiB
optee optee: OP-TEE: revision 3.16 (b885d552)
Clocks:
- MPU : 650 MHz
- AXI : 266.500 MHz
- PER : 24 MHz
- DDR : 533 MHz
WDT:   Started with servicing (32s timeout)
NAND:  0 MiB
MMC:   STM32 SD/MMC: 0
Loading Environment from MMC... OK
In:    serial
Out:   serial
Err:   serial
invalid MAC address 0 in OTP 00:00:00:00:00:00
Net:   No ethernet found.
Hit any key to stop autoboot:  0
Boot over mmc0!
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:5...
Found /boot/extlinux/extlinux.conf
Retrieving file: /boot/extlinux/extlinux.conf
160 bytes read in 20 ms (7.8 KiB/s)
1:      stm32mp135f-coremp135-buildroot
Retrieving file: /boot/zImage
7923832 bytes read in 579 ms (13.1 MiB/s)
append: root=/dev/mmcblk0p5 rw panic=5 quiet rootwait
Retrieving file: /boot/stm32mp135f-coremp135.dtb
68116 bytes read in 24 ms (2.7 MiB/s)
Kernel image @ 0xc2000000 [ 0x000000 - 0x78e878 ]
## Flattened Device Tree blob at c4000000
   Booting using the fdt blob at 0xc4000000
   Loading Device Tree to cffec000, end cffffa13 ... OK
gc2145@3c node not found - DT update aborted
FDT: cryp@54002000 node disabled for STM32MP135D Rev.?

Starting kernel ...

• Linux logs
  from Port.C with TX-RX swap signal

[    0.004005] /cpus/cpu@0 missing clock-frequency property
[    0.435138] stm32-cpufreq stm32-cpufreq: OPP-v2 not supported
Starting syslogd: OK
Starting klogd: OK
Starting modules: soundcore success, snd success, snd_timer success, snd_pcm success, snd_pcm_dmaengine success, snd_soc_core success, snd_soc_simple_card_utils success, snd_soc_audio_graph_card success, snd-soc-simple-card success, snd_soc_stm32_sai success, snd_soc_stm32_sai_sub success, cdc-acm success, libcomposite success, g_serial success, OK
Running sysctl: OK
Starting mdev... OK
Seeding 256 bits and crediting
Saving 256 bits of creditable seed for next boot
Starting tee-supplicant: Using device /dev/teepriv0.
OK
Starting network: OK
Starting dhcpcd...
dhcpcd-9.4.1 starting
DUID 00:01:00:01:2d:f9:ec:09:2a:88:82:9b:b0:f0
forked to background, child pid 177
[    5.966541] m_can_platform 4400e000.can can0: bit-timing not yet defined
[    5.974064] m_can_platform 4400e000.can can0: failed to open can device
[    5.988759] m_can_platform 4400f000.can can1: bit-timing not yet defined
[    5.994164] m_can_platform 4400f000.can can1: failed to open can device
Starting dropbear sshd: OK
Stopping /etc/rc.localOK

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Reference

https://x.com/ciniml/status/1791303454474014932