STM32mp25D hanging at intializing BL32, no errors.

[AN_turner]

I am struggling with getting a STM32mp25D board flashed, it hangs at BL32 (see output below). It does have one warning "WARNING: Could not enable VRSEL for vddio2", but I don't think that is relevant to the hanging at BL32 (but I could be wrong). I have successfully flashed a STM32mp25F-EV1 board, that works fine. Seeing as the difference between the D and F flavor is that F supports secure boot, I have attempted to tweak OPTEE settings, such as building  OP-TEE OS with configuration CFG_STM32MP_PROFILE=system_services, as suggested here. I have also attempted to set BOOTSCHEME_LABELS = "opteemin" in the boot scheme section of the stm32mp25.conf file. Someone else on the team is also tweaking firewall/security settings, also with no success. I'm not sure exactly what they have attempted on that front, however. 

I am wondering if someone else has run into this problem/has a solution? I'm also unsure if I'm barking up the wrong tree thinking that the issue lies with OPTEE/firewall settings, and its actually something else entirely?

OUTPUT FROM UART8

NOTICE: CPU: STM32MP257DAI Rev.Y
NOTICE: Model: STMicroelectronics custom STM32CubeMX board - openstlinux-6.6-yocto-scarthgap-mpu-v24.11.06
NOTICE: Reset reason: Power-on reset (por_rstn) (0x2035)
INFO: PMIC2 version = 0x11
INFO: PMIC2 product ID = 0x21
INFO: FCONF: Reading TB_FW firmware configuration file from: 0xe011000
INFO: FCONF: Reading firmware configuration information for: stm32mp_fuse
INFO: FCONF: Reading firmware configuration information for: stm32mp_io
WARNING: Could not enable VRSEL for vddio2
INFO: Using USB
INFO: Instance 2
INFO: Boot used partition fsbl1
NOTICE: BL2: v2.10-stm32mp2-r1.0(debug):lts-v2.10.5-dirty(7c229848)
NOTICE: BL2: Built : 16:19:31, Jun 28 2024
INFO: EventBuffer0: BuffArea=e03f000 DmaAddr=0e03f000 CoherentMapAddr=0xe03f000
INFO: dwc3_set_dev_speed = HighSpeed
INFO: DFU USB START...
INFO: Event: Link Status Change : ON(0)
INFO: Event: Link Status Change : Early Suspend(5)
INFO: Event: Link Status Change : L2(3)
INFO: Event: Suspend
INFO: USB Suspend mode
INFO: Event: Device Reset
INFO: Event: Device Connection Done
INFO: dwc3_get_dev_speed = HighSpeed
INFO: Event: Link Status Change : ON(0)
INFO: Event: Link Status Change : Early Suspend(5)
INFO: Event: Device Reset
INFO: Event: Device Connection Done
INFO: dwc3_get_dev_speed = HighSpeed
INFO: Event: Link Status Change : ON(0)
INFO: phase ID :2, Manifestation 0 at e0086b0
INFO: Send detach request
INFO: Receive DFU Detach
INFO: DFU USB STOP...
INFO: BL2: Loading image id 26
INFO: Loading image id=26 at address 0xe041000
INFO: Image id=26 loaded: 0xe041000 - 0xe049650
INFO: BL2: Doing platform setup
INFO: RAM: LPDDR4 32bits 640000kHz
INFO: Memory size = 0x80000000 (2048 MB)
INFO: DFU USB START...
INFO: Event: Link Status Change : ON(0)
INFO: Event: Link Status Change : Early Suspend(5)
INFO: Event: Link Status Change : L2(3)
INFO: Event: Suspend
INFO: USB Suspend mode
INFO: Event: Device Reset
INFO: Event: Device Connection Done
INFO: dwc3_get_dev_speed = HighSpeed
INFO: Event: Link Status Change : ON(0)
INFO: Event: Link Status Change : Early Suspend(5)
INFO: Event: Device Reset
INFO: Event: Device Connection Done
INFO: dwc3_get_dev_speed = HighSpeed
INFO: Event: Link Status Change : ON(0)
INFO: phase ID :3, Manifestation 1 at 872f2b7a
INFO: Send detach request
INFO: Receive DFU Detach
INFO: DFU USB STOP...
INFO: BL2: Loading image id 1
INFO: Loading image id=1 at address 0xe000000
INFO: Image id=1 loaded: 0xe000000 - 0xe000326
INFO: FCONF: Reading FW_CONFIG firmware configuration file from: 0xe000000
INFO: FCONF: Reading firmware configuration information for: risaf_config
INFO: RISAF2: No configuration in DT, use default
INFO: FCONF: Reading firmware configuration information for: dyn_cfg
INFO: BL31 max size = 0x17000 (94208B)
INFO: BL2: Loading image id 3
INFO: Loading image id=3 at address 0xe000000
INFO: Image id=3 loaded: 0xe000000 - 0xe0114c0
INFO: BL2: Loading image id 19
INFO: Loading image id=19 at address 0x81fc0000
INFO: Image id=19 loaded: 0x81fc0000 - 0x81fc3758
INFO: BL2: Loading image id 4
INFO: Loading image id=4 at address 0x82000000
INFO: Image id=4 loaded: 0x82000000 - 0x8200001c
INFO: OPTEE ep=0x82000000
INFO: OPTEE header info:
INFO: magic=0x4554504f
INFO: version=0x2
INFO: arch=0x1
INFO: flags=0x0
INFO: nb_images=0x1
INFO: BL2: Loading image id 8
INFO: Loading image id=8 at address 0x82000000
INFO: Image id=8 loaded: 0x82000000 - 0x820fc628
INFO: BL2: Loading image id 2
INFO: Loading image id=2 at address 0x84400000
INFO: Image id=2 loaded: 0x84400000 - 0x84414450
INFO: BL2: Loading image id 5
INFO: Loading image id=5 at address 0x84000000
INFO: Image id=5 loaded: 0x84000000 - 0x841c49b8
NOTICE: BL2: Booting BL31
INFO: Entry point address = 0xe000000
INFO: SPSR = 0x3cd
INFO: ARM GICv2 driver initialized
NOTICE: BL31: v2.10-stm32mp2-r1.0(debug):lts-v2.10.5-dirty(7c229848)
NOTICE: BL31: Built : 16:19:31, Jun 28 2024
INFO: BL31: Initializing runtime services
INFO: BL31: Initializing BL32