Part Number: AM62L
From the UBoot log, OPTEE is not loaded. no matter boot with prebuit .wic file made SD card, or with new build PRNG OPTEE uboot boot from eMMC, same log as below I got on AM62L EVM
Since TEE is not loaded, PRNG TEE or OOB TEE should not impact rt-linux cyclictest result.
NOTICE: BL1: Built : 10:58:06, Feb 2 2026 NOTICE: BL1: dram_class: 11 NOTICE: lpddr4: post start - PI training status=0x27c0a000 NOTICE: bl1_platform_setup DDR init done NOTICE: k3_bl1_handoff ENTERING WFI - end of bl1 NOTICE: BL31: v2.12.0(release):11.02.01-14-g5939ceaeb NOTICE: BL31: Built : 10:58:08, Feb 2 2026 NOTICE: SYSFW ABI: 4.0 (firmware rev 0x000b '11.2.5-v11.02.05a (Fancy Rat)') get_device_type a0a I/TC: I/TC: OP-TEE version: 4.7.0 (gcc version 13.4.0 (GCC)) #3 Mon May 25 02:25:05 UTC 2026 aarch64 I/TC: WARNING: This OP-TEE configuration might be insecure! I/TC: WARNING: Please check optee.readthedocs.io/.../porting_guidel I/TC: Primary CPU initializing I/TC: GIC redistributor base address not provided I/TC: Assuming default GIC group status and modifier I/TC: Primary CPU switching to normal world boot ERROR: Agent 0 Protocol 0x10 Message 0x7: not supported U-Boot SPL 2025.01-g7493977a537f-dirty (May 25 2026 - 10:39:16 +0800) SPL initial stack usage: 1984 bytes Trying to boot from MMC1 ERROR: Agent 0 Protocol 0x10 Message 0x7: not supported U-Boot 2025.01-g7493977a537f-dirty (May 25 2026 - 10:39:16 +0800) SoC: AM62LX SR1.1 HS-FS Model: Texas Instruments AM62L3 Evaluation Module DRAM: 2 GiB ERROR: Agent 0 Protocol 0x10 Message 0x7: not supported Core: 85 devices, 32 uclasses, devicetree: separate MMC: mmc@fa10000: 0, mmc@fa00000: 1 Loading Environment from nowhere... OK In: serial@2800000 Out: serial@2800000 Err: serial@2800000 Net: eth0: ethernet@8000000port@1 Warning: ethernet@8000000port@2 (eth1) using random MAC address - 9e:1a:69:29:a1:a1 , eth1: ethernet@8000000port@2 Hit any key to stop autoboot: 0 =>But under Customer's system, does the optee not effected?
Can grep out TEE in dmesg:
root@am62lxx-evm:~# uname -a
Linux am62lxx-evm 6.12.57-ti-rt-g31b07ab8dfbc #1 SMP PREEMPT_RT Thu Dec 4 13:07:37 UTC 2025 aarch64 GNU/Linux
root@am62lxx-evm:~#
root@am62lxx-evm:~# dmesg |grep tee
[ 0.000000] OF: reserved mem: 0x0000000080200000..0x00000000809fffff (8192 KiB) nomap non-r
[ 0.991337] optee: probing for conduit method.
[ 0.991379] optee: revision 4.7 (a9690ae39995af36)
[ 0.991801] optee: dynamic shared memory is enabled
[ 0.992884] optee: initialized driver
root@am62lxx-evm:~#
[ 1.338980] optee: probing for conduit method.
[ 1.338998] optee: api uid mismatch
[ 1.339004] optee firmware:optee: probe with driver optee failed with error -22