Thanks RH Kim,

The commit you shared did not remove any ATU initialisations from what I see. To understand better, are you working on a branch or old commit where you see atu_rse_drv_init for RDV3R1? If so, can you please share?

I'm also not very familiar with that platform so it's likely I'm missing something, though it seems that the platform_post_init sequence is different from RDV3.

Thanks Best regards, Nick

________________________________ From: 김륜현 via TF-M tf-m@lists.trustedfirmware.org Sent: 13 May 2026 03:16 To: tf-m@lists.trustedfirmware.org tf-m@lists.trustedfirmware.org Subject: [TF-M] no ATU setting in RDV3r1 with TF-M v2.3.0

Dear all, i'm developing the RSE firmware based on rdv3r1.

I'm reviewing TF-M v2.3.0 was recently released for checking difference our project codes.

Among many differences, i discovered missing ATU settings to load post processor images.

In the similar platform rdv3, it calls atu_rse_drv_init() at boot_platform_post_init().

But rdv3r1 doesn't call atu_rse_drv_init() also i can't found ATU settings to load post images in BL2.

Is there any intentions?

Or was it just missing while integrating by this commit https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/39562?

Please check it

Best Regards

RH Kim