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TDA4VM: rebooting occurred at every time boot-up

Part Number: TDA4VM

Dear Champs,

My customer is trying to boot TDA4 GP EVM, but rebooting was occurred sometimes after boot-up done as below.

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|__|__|_| |__,|_  |___|  |__|  |_| |___|_| |___|___|_| 

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Arago Project http://arago-project.org j7-evm ttyS2

 

Arago 2021.09 j7-evm ttyS2

 

j7-evm login: root

Last login: Mon Dec 20 16:27:19 UTC 2021

root@j7-evm:~#

root@j7-evm:~#

root@j7-evm:~# ll

-sh: ll: command not found

root@j7-evm:~# ls

U-Boot SPL 2021.01-g15769936a5 (Dec 20 2021 - 17:09:03 +0000)

Model: Texas Instruments K3 J721E SoC

Board: J721EX-PM2-SOM rev E8

SYSFW ABI: 3.1 (firmware rev 0x0015 '21.9.1--v2021.09a (Terrific Lla')

Trying to boot from MMC2

Starting ATF on ARM64 core...

 

NOTICE:  BL31: v2.5(release):08.01.00.006-dirty

NOTICE:  BL31: Built : 16:34:52, Dec 20 2021

 

U-Boot SPL 2021.01-g15769936a5 (Dec 20 2021 - 16:36:05 +0000)

Model: Texas Instruments K3 J721E SoC

Board: J721EX-PM2-SOM rev E8

SYSFW ABI: 3.1 (firmware rev 0x0015 '21.9.1--v2021.09a (Terrific Lla')

Detected: J7X-BASE-CPB rev E3

Detected: J7X-VSC8514-ETH rev E2

Trying to boot from MMC2

At sometime, they faced this reboot issue in the u-boot.

Their SDK is SDKv8.1.0.7, and EVM SW configurations are 

  • SW8[1-8] : 1000 0010
  • SW9[1-8] : 0000 0000

They tested EVM using below 2 kind of power supply and this rebooting issue was occurred in all these two power adaptors.

  • 12V/5A
  • 12V/6.67A

Could you please guide what should be checked ?

Thanks and Best Regards,

SI.

  • Hi SI,

    Is this the first time they are trying this EVM? Have they successfully booted these EVMs with older releases like 8.0 SDK or 7.3?
    Just want to understand if this is seen only pn 8.1 SDK.

    Also can they try out creating a fresh SD card and boot?

    - Keerthy

  • Keerthy,

    Thanks for the response.

    They have tried to boot with SDK v8.0 and SDKv7.2, and same issues occurred with these all SDKs.

    They also tried to use Factory SD card and other SD cards, and same issues occurred.

    Thanks and Best Regards,

    SI.

  • Hi SI,

    I need more details. Is the VTM module enabled by the customer? One potential reason could be thermal shutdown.


    CTRLMMR_WKUP_RESET_SRC_STAT Register describes the reset reason.

    Once the reboot occurs can you try the below command from the subsequent Linux boot to check the reset reason?

    devmem2 
    0x43000050 w

    If Bit24 is set corresponding to THERMAL_RST indicates the reset due to TSHUT.

    Best Regards,
    Keerthy