7.33.4. Dragonwing IQ-9075 development platform

Trusted Firmware-A (TF-A) platform port for Lemans SoC based EVK platform also known as IQ-9075 as the marketing name. For details about IQ-9075 platform, refer to this link

7.33.4.1. Boot flow

7.33.4.2. How to build

Steps to build TF-A BL2 and FIP payload:

$ make CROSS_COMPILE=aarch64-none-elf- PLAT=lemans_evk SPD=opteed \
    QTISECLIB_PATH=<qtiseclib-path> BL32=<path-to-optee-bin> \
    BL33=<path-to-os-bootloader-bin> fip all

$ ./tools/qti/generate_fip_elf.sh build/lemans_evk/release/fip.bin \
    0xaf000000

QTISECLIB for lemans is still work under progress, the current port allows to boot OP-TEE OS.

Note that the bl2.elf generated here is required to be signed as TZ image with QTI signing involved. Also, the fip.elf generated above is signed using qtestsign which just puts the OEM test signature to allow it to work on devices in non-secure mode. In secure mode, it is required to be signed using sectools v2

7.33.4.3. How to flash

Generate a Yocto BSP image for iq-9075-evk following instructions from meta-qcom here

It will generate a tar ball in the build folder for iq-9075-evk something like: qcom-multimedia-image-iq-9075-evk.rootfs.qcomflash.tar.gz. Untar it and replace tz.mbn with bl2.mbn and uefi.elf with fip.elf that you have generated by yourself.

Then flash the board following the meta-qcom instructions here

7.33.4.4. Boot Trace

Boot logs on lemans_evk:

Format: Log Type - Time(microsec) - Message - Optional Info
Log Type: B - Since Boot(Power On Reset),  D - Delta,  S - Statistic
S - QC_IMAGE_VERSION_STRING=BOOT.MXF.1.0.c1-00430-KODIAKLA-1
S - IMAGE_VARIANT_STRING=SocLeMansLAA
S - OEM_IMAGE_VERSION_STRING=258af405f4c7
<snip-XBL-logs>
NOTICE:  BL2: v2.14.0(release):v2.13.0-1873-g0c07fd50a
NOTICE:  BL2: Built : 17:52:29, Feb 17 2026
NOTICE:  BL2: Booting BL31
NOTICE:  BL31: v2.14.0(release):v2.13.0-1873-g0c07fd50a
NOTICE:  BL31: Built : 17:52:29, Feb 17 2026
ERROR:   Please use QTISECLIB_PATH while building TF-A
ERROR:   Please refer docs/plat/qti/* for more details.
I/TC:
I/TC: OP-TEE version: 4.9.0-1-gc6cb871cc (gcc version 11.4.0 (Ubuntu 11.4.0-1ubuntu1~22.04)) #1 Tue Feb 17 12:22:27 UTC 2026 aarch64
I/TC: WARNING: This OP-TEE configuration might be insecure!
I/TC: WARNING: Please check https://optee.readthedocs.io/en/latest/architecture/porting_guidelines.html
I/TC: Primary CPU initializing
I/TC: Platform Qualcomm: Flavor lemans
I/TC: Primary CPU switching to normal world boot
PANIC at PC : 0x000000001c200d70