STM32MP267FAK3 Custom Board – eMMC Flashing Timeout via STM32CubeProgrammer (No SD Card)

[_Vanshika]

I am working on a custom board based on STM32MP267FAK3 and facing issues while flashing eMMC directly using STM32CubeProgrammer.

Hardware Details

• SoC: STM32MP267FAK3

• DDR: DDR3L (part no: MT41K512M16VRP-107 )

• eMMC: Custom eMMC MX52LM08A11XVW

• SD Card: Not populated / no SD card provision on board

Software Changes Done

I have already made board-specific changes in:

• TF-A (DDR + PMIC configuration generated using CubeMX tool)

• OP-TEE

• U-Boot

• Linux kernel

  Flashing Method

  • Flashing eMMC directly using STM32CubeProgrammer

  • Interface: USB (DFU)

  • Using a TSV file generated from the build system (same method as reference BSP)
    TSV File

    

    Problem Description

    When flashing the eMMC, I consistently get a timeout error in STM32CubeProgrammer.

    My questions are:
    1. What might be the reason for this error?
    2. What are the possible solutions I can adopt to resolve this issue?
    3. Is there any other way to directly flash eMMC without SD card and without using STM32CubeProgrammer?

[PatrickF]

Hi, there might be two main root causes to look first:

- USB re-connection if you are using a Virtual machine. Check your VM settings or try using CubeProg under W11

- TF-A or uBoot (partition 0x1 or 0x2) is crashing (e.g. DDR init or else), please check board UART console log for error messages.

Regards.

[_Vanshika]

Hii,
I am not using Virtual Machine. I am using STM32CubeProgrammer for flashing.
I connected UART for checking logs this time and got the below mentioned error:
NOTICE:  CPU: STM32MP257FAK Rev.Y
NOTICE:  Model: STMicroelectronics STM32MP257F-DK Discovery Board
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
INFO:    Using USB
INFO:      Instance 2
INFO:    Boot used partition fsbl1
NOTICE:  BL2: v2.10-stm32mp2-r2.0(debug):lts-v2.10.13-dirty(b1f57509)
NOTICE:  BL2: Built : 17:10:59, Feb 14 2025
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 e005488
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 - 0xe046428
INFO:    BL2: Doing platform setup
INFO:    RAM: DDR3 16bits 933000kHz
ERROR:   ddrphy_phyinit_usercustom_g_waitfwdone Training has failed.
ERROR:   DDR PHY init: Error -1
BACKTRACE: START: stm32mp2_ddr_init
0: EL3: 0xe017ba0
1: EL3: 0xe01e358
2: EL3: 0xe01ecd8
3: EL3: 0xe028a9c
4: EL3: 0xe017974
5: EL3: 0xe017ad4
6: EL3: 0xe0170e0
BACKTRACE: END: stm32mp2_ddr_init
PANIC at PC : 0x000000000e01e360


Can you tell me why this error is coming. I have done changes in dts files present in tf-a and optee for ddr and pmic settings for ddr3L at 933MHz and also the memory node for DDR which is also mentioned below:

memory@80000000 {
device_type = "memory";
reg = <0x0 0x80000000 0x0 0x40000000>;
};

Is there anything else remaining to be changed? Why this training failed error is coming? 
I am sharing my files generated from CubeMX for your verification